Speed up GUID cache and bookmark recipe lookups (#1119)

Co-authored-by: slprime <[email protected]>

.git-blame-ignore-revs

@@ -0,0 +1,2 @@
+# Ignore spotlessApply reformat
+f106b5e7665df6341ae8539f74dc391a7efc98b1

.gitattributes

@@ -0,0 +1,44 @@
+* text eol=lf
+
+*.[jJ][aA][rR]          binary
+
+*.[pP][nN][gG]          binary
+*.[jJ][pP][gG]          binary
+*.[jJ][pP][eE][gG]      binary
+*.[gG][iI][fF]          binary
+*.[tT][iI][fF]          binary
+*.[tT][iI][fF][fF]      binary
+*.[iI][cC][oO]          binary
+*.[sS][vV][gG]          text
+*.[eE][pP][sS]          binary
+*.[xX][cC][fF]          binary
+
+*.[kK][aA][rR]          binary
+*.[mM]4[aA]             binary
+*.[mM][iI][dD]          binary
+*.[mM][iI][dD][iI]      binary
+*.[mM][pP]3             binary
+*.[oO][gG][gG]          binary
+*.[rR][aA]              binary
+
+*.7[zZ]                 binary
+*.[gG][zZ]              binary
+*.[tT][aA][rR]          binary
+*.[tT][gG][zZ]          binary
+*.[zZ][iI][pP]          binary
+
+*.[tT][cC][nN]          binary
+*.[sS][oO]              binary
+*.[dD][lL][lL]          binary
+*.[dD][yY][lL][iI][bB]  binary
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+*.[tT][tT][fF]          binary
+*.[oO][tT][fF]          binary
+
+*.[pP][aA][tT][cC][hH]  -text
+
+*.[bB][aA][tT]          text eol=crlf
+*.[cC][mM][dD]          text eol=crlf
+*.[pP][sS]1             text eol=crlf
+
+*[aA][uU][tT][oO][gG][eE][nN][eE][rR][aA][tT][eE][dD]* binary

.github/ISSUE_TEMPLATE/000-report-bug.yml

@@ -0,0 +1,60 @@
+name: Report Bug
+description: "Report a bug."
+body:
+  - type: markdown
+    attributes:
+      value: "A bug/crash report with sufficient information and logs to reproduce and track down."
+  - type: input
+    id: discord
+    attributes:
+      label: Your GTNH Discord Username
+      description: Leave empty if you don't have one, but this will make it harder to contact you if we need additional info.
+      placeholder: "Example: Fake#1234"
+  - type: input
+    id: version
+    attributes:
+      label: Mod Version
+      description: "What version of the Mod are you using?"
+      placeholder: "Example: 1.0.0"
+    validations:
+      required: true
+  - type: textarea
+    id: report
+    attributes:
+      label: Bug Report
+      description: "Relevant information, as well as relevant logs attached such as `logs/fml-client-latest.log."
+      placeholder: "Example: https://mclo.gs/ OR submit the file to github by dragging it to this textbox."
+    validations:
+      required: true
+  - type: dropdown
+    id: java
+    attributes:
+      label: Java Version
+      description: What Java version are you using? It's worth mentioning that if you play on Java9+ you should try update to latest minor release (e.g. prefer Java 17.0.6 over 17.0.2) of that version.
+      options:
+        - Java 8
+        - Java 17
+        - Java 21
+        - java 25
+        - java 26
+        - Other (Please Specify)
+    validations:
+      required: true
+  - type: textarea
+    id: modlist
+    attributes:
+      label: Mod List or GTNH Pack Version
+      description: "List of mods, ideally a minimal reproducible set (can be retrieved from latest.log).  If using GTNH please indicate pack version and any changed mods, not the entire modlist."
+      placeholder: "List of mods or GTNH Pack version goes here"
+    validations:
+      required: true
+  - type: checkboxes
+    id: final
+    attributes:
+      label: Final Checklist
+      description: Certify that you read things
+      options:
+        - label: "I have searched the issues and haven't found a similar issue."
+          required: true
+
+

.github/ISSUE_TEMPLATE/001-request-feature.yml

@@ -0,0 +1,28 @@
+name: Feature Request
+description: "Request a feature."
+body:
+  - type: markdown
+    attributes:
+      value: "Please use this form to request features. We ask you check if it was already requested though"
+  - type: input
+    id: discord
+    attributes:
+      label: Your GTNH Discord Username
+      description: Leave empty if you don't have one, but this will make it harder to contact you if we need additional info.
+      placeholder: "Example: Wumpus#1234"
+  - type: textarea
+    id: request
+    attributes:
+      label: Feature Request
+      description: "Relevant information, as well as relevant images"
+      placeholder: "Example: https://mclo.gs/ OR submit the file to github by dragging it to this textbox."
+    validations:
+      required: true
+  - type: checkboxes
+    id: final
+    attributes:
+      label: Final Checklist
+      description: Certify that you read things
+      options:
+        - label: "I have searched the issues and haven't found a similar issue."
+          required: true

.github/scripts/test-no-crash-reports.sh

@@ -1,9 +0,0 @@
-directory="run/crash-reports"
-if [ -d $directory ]; then
-  echo "Crash reports detected:"
-  cat $directory/*
-  exit 1
-else
-  echo "No crash reports detected"
-  exit 0
-fi

.github/workflows/build-and-test.yml

@@ -1,45 +1,13 @@
-# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
 
 name: Build and test
 
 on:
   pull_request:
-    branches: [ master, main ]
+    branches: [ master, main, release/** ]
   push:
-    branches: [ master, main ]
+    branches: [ master, main, release/** ]
 
 jobs:
   build-and-test:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-      with: 
-        fetch-depth: 0
-    
-    - name: Set up JDK 8
-      uses: actions/setup-java@v2
-      with:
-        java-version: '8'
-        distribution: 'adopt'
-        cache: gradle
-        
-    - name: Grant execute permission for gradlew
-      run: chmod +x gradlew
-
-    - name: Setup the workspace
-      run: ./gradlew setupCIWorkspace
-    
-    - name: Build the mod
-      run: ./gradlew build
-
-    - name: Run server for 1 minute
-      run: |
-        mkdir run
-        echo "eula=true" > run/eula.txt  
-        timeout 10 ./gradlew runServer || true
-
-    - name: Test no crashes happend
-      run: |
-        chmod +x .github/scripts/test-no-crash-reports.sh
-        .github/scripts/test-no-crash-reports.sh
+    uses: GTNewHorizons/GTNH-Actions-Workflows/.github/workflows/build-and-test.yml@master
+    secrets: inherit

.github/workflows/optimize-images.yml

@@ -0,0 +1,17 @@
+name: Optimize images
+
+on:
+  pull_request:
+    branches: [ master, main, release/** ]
+    paths:
+      - "**/*.png"
+
+  push:
+    branches: [ master, main, release/** ]
+    paths:
+      - "**/*.png"
+
+jobs:
+  optimize-images:
+    uses: GTNewHorizons/GTNH-Actions-Workflows/.github/workflows/optimize-images.yml@master
+    secrets: inherit

.github/workflows/release-tags.yml

@@ -1,51 +1,14 @@
-# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
 
 name: Release tagged build
 
 on:
   push:
-    tags:
-      - '*'
+    tags: [ '*' ]
+
+permissions:
+  contents: write
 
 jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-
-      - name: Set release version
-        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-
-      - name: Set up JDK 8
-        uses: actions/setup-java@v2
-        with:
-          java-version: '8'
-          distribution: 'adopt'
-          cache: gradle
-
-      - name: Grant execute permission for gradlew
-        run: chmod +x gradlew
-
-      - name: Setup the workspace
-        run: ./gradlew setupCIWorkspace
-
-      - name: Build the mod
-        run: ./gradlew build
-
-      - name: Release under current tag
-        uses: "marvinpinto/action-automatic-releases@latest"
-        with:
-          repo_token: "${{ secrets.GITHUB_TOKEN }}"
-          automatic_release_tag: "${{ env.RELEASE_VERSION }}"
-          prerelease: false
-          title: "${{ env.RELEASE_VERSION }}"
-          files: build/libs/*.jar
-
-      - name: Publish to Maven
-        run: ./gradlew publish
-        env:
-          MAVEN_USER: ${{ secrets.MAVEN_USER }}
-          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
+  release-tags:
+    uses: GTNewHorizons/GTNH-Actions-Workflows/.github/workflows/release-tags.yml@master
+    secrets: inherit

.gitignore

@@ -1,6 +1,7 @@
 .gradle
 .settings
 /.idea/
+/.vscode/
 /run/
 /build/
 /eclipse/
@@ -25,5 +26,15 @@ whitelist.json
 *.iml
 *.ipr
 *.iws
-src/main/resources/mixins.*.json
+src/main/resources/mixins.*([!.]).json
 *.bat
+*.sh
+*.DS_Store
+!gradlew.bat
+.factorypath
+addon.local.gradle
+addon.local.gradle.kts
+addon.late.local.gradle
+addon.late.local.gradle.kts
+layout.json
+

README.md

@@ -1,5 +1,7 @@
 # NotEnoughItems Unofficial - By the GTNH Team
 
+🌐 **Languages:** [English](README.md) | [Українська](README_uk.md)
+
 A continuation of NotEnoughItems for 1.7.10 by the developers of Gregtech: New Horizons modpack, with features either inspired and/or backported from JustEnoughItems
 
 We've tested this against all of the mods included in GTNH, as well as a limited set of other mods (like Reika's mods). Every effort has been made to maintain backwards compatibility, however the focus is on the mods contained in the GTNH modpack.
@@ -8,20 +10,73 @@ If you have issues with NEI outside of the GTNH modpack you may report them in t
 
 ## New Features:
 
-* Speed 
+* Speed
   - Uses a parallel stream to search the item list over multiple cores, resulting in 2-6x faster searches on average
-  - Loads the recipe handlers in parallel 
+  - Loads the recipe handlers in parallel
 * A textbox for search with most of the features you'd expect - moving forward, backwards, selection, etc
-* Bookmarks!  What are you in the process of crafting? Bookmark it using either 'A' or configure your own key.
+* Bookmarks! Are you in the process of crafting? Bookmark it using either 'A' or configure your own key.
 * Toggle bookmark pane.  Default shortcut key `B`.  Item Subsets menu is only available if bookmarks are not visible.
 * Utility/Cheat buttons line up and wrap based on GUI size
 * ItemList is no longer regenerated from the ItemRegistry on every inventory load
-* JEI (Or Creative) Style tabs [Optional]  Note: Requires explicit support to be added for an ItemStack to render, otherwise falls back to the first two letters of the handler name.  
+* JEI (Or Creative) Style tabs [Optional]  Note: Requires explicit support to be added for an ItemStack to render, otherwise falls back to the first two letters of the handler name.
 * Tabs/Handlers are loaded from a CSV config in the JAR (or optionally from the config folder).  NBT IMCEvents `registerHandlerInfo` and `removeHandlerInfo` are available for mod authors to add handler information, using the same fields as the CSV file
 * `@[Mod]->[item]` searching.  ex: `@Mod.gregtech->iron ingot`
-* Cycle between Recipe, Utility, and Cheat mode by ctrl clicking on the Wrench Icon 
+* Cycle between Recipe, Utility, and Cheat mode by ctrl clicking on the Wrench Icon
 * GT5u Tools/Items and GT6 tools should now properly work with the Overlay Recipe Transfer
 
+### Information Page Handler
+Want to add some information about a block or item without making a massive tooltip for it? You can add information about any block or item by registering it in the Information Handler.
+
+Information page(s) are displayed when either the uses or recipes of a matching item are searched. All matching items will cycle at the top of the information page.
+
+Your mod can call:
+```java
+FMLInterModComms.sendMessage("NotEnoughItems", "addItemInfo", nbt);
+```
+Where nbt is an NBTTagCompound formatted as described below.
+
+| Tag              | Type                       | Description                                                                                                                                                                                                                |
+|------------------|----------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `filter`         | String                     | A string filter to match what items should return this information page.<br/>modname:itemname, metadata, Ore Dictionary tags, and regex can all be used. The full format may be seen in `config/NEI/collapsibleitems.cfg`. |
+| `page` / `pages` | String / String NBTTagList | The actual text to display. See below for differences between single and multi-page messages.<br/>Both formats will automatically translate provided strings.                                                              |
+
+#### Single Page Format
+
+Use the `"page"` string tag when you only want to add one page of information:
+```java
+NBTTagCompound tag = new NBTTagCompound();
+tag.setString("filter", "minecraft:log 3");
+tag.setString("page", "Exotic wood found in tropical climates.");
+
+FMLInterModComms.sendMessage("NotEnoughItems", "addItemInfo", tag);
+```
+
+#### Multiple Page Format
+
+Use the `"pages"` tag as an `NBTTagList` of strings when you want more than one page:
+```java
+NBTTagCompound tag = new NBTTagCompound();
+tag.setString("filter", "minecraft:diamond_sword");
+
+NBTTagList pages = new NBTTagList();
+pages.appendTag(new NBTTagString("A powerful melee weapon."));
+pages.appendTag(new NBTTagString("Can be enchanted for extra effects."));
+
+tag.setTag("pages", pages);
+
+FMLInterModComms.sendMessage("NotEnoughItems", "addItemInfo", tag);
+```
+* Each list entry is one page.
+* Pages will appear in NEI with buttons to scroll through them.
+
+#### Item Matching
+
+All items that match `filter` will show your information page. See `config/NEI/collapsibleitems.cfg` for the full filter format.
+
+#### Item Information Config File
+
+If you're a modpack creator and want to make custom item information pages, they can easily be added in `config/NEI/informationpages.cfg`, which has a few more examples. The file is not created automatically: use the Export button in the NEI options under Tools > Default Config Files to copy the defaults to `config/NEI`.
+
 ## Other items of note:
 
 * Remove TMI style
@@ -29,7 +84,7 @@ If you have issues with NEI outside of the GTNH modpack you may report them in t
 
 ## License
 
-GTNH Modifications Copyright (c) 2019-2022 mitchej123 and the GTNH Team
+GTNH Modifications Copyright (c) 2019-2024 mitchej123 and the GTNH Team
 
 Licensed under LGPL-3.0 or later - use this however you want, but please give back any modifications
 

README_uk.md

@@ -0,0 +1,93 @@
+# NotEnoughItems Unofficial — від команди GTNH
+
+🌐 **Мови:** [English](README.md) | [Українська](README_uk.md)
+
+Продовження модифікації NotEnoughItems для 1.7.10 від розробників збірки GregTech: New Horizons із функціями, натхненними та/або бекпортованими з JustEnoughItems.
+
+Ми протестували цю версію з усіма модами, що входять до GTNH, а також із обмеженим набором інших модів (як-от моди від Reika). Було докладено всіх зусиль для збереження зворотної сумісності, однак основну увагу приділено модам зі збірки GTNH.
+
+Якщо у вас виникли проблеми з NEI за межами збірки GTNH, ви можете повідомити про них у [GitHub-репозиторії GTNH NEI](https://github.com/GTNewHorizons/NotEnoughItems).
+
+## Нові можливості:
+
+* Швидкодія
+  - Використовує паралельний потік для пошуку у списку предметів на кількох ядрах процесора, що в середньому пришвидшує пошук у 2–6 разів.
+  - Завантажує обробники рецептів паралельно.
+* Текстове поле пошуку з більшістю очікуваних функцій — переміщення курсора вперед/назад, виділення тексту тощо.
+* Закладки! Перебуваєте у процесі крафту? Додайте потрібний рецепт до закладок за допомогою клавіші «A» або налаштуйте власну клавішу.
+* Перемикання видимості панелі закладок. Гаряча клавіша за замовчуванням — `B`. Меню «Підгрупи предметів» доступне лише тоді, коли панель закладок прихована.
+* Кнопки утиліт та читів вирівнюються в ряд та переносяться на новий рядок залежно від розміру графічного інтерфейсу.
+* Список предметів (`ItemList`) більше не генерується повторно з `ItemRegistry` під час кожного відкриття інвентарю.
+* Вкладки у стилі JEI (або творчого режиму) [За бажанням]. Примітка: вимагає явної підтримки для рендерингу `ItemStack`, інакше використовуються перші дві літери назви обробника.
+* Вкладки/обробники завантажуються з конфігураційного CSV-файлу в JAR-архіві (або за бажанням з папки `config`). Для авторів модів доступні IMC-повідомлення з NBT-даними `registerHandlerInfo` та `removeHandlerInfo` для додавання інформації про обробники з використанням тих самих полів, що й у CSV-файлі.
+* Пошук за допомогою синтаксису `@[Мод]->[предмет]`. Наприклад: `@Mod.gregtech->iron ingot`.
+* Перемикання між режимами рецептів, утиліт та читів за допомогою CTRL + ЛКМ по іконці гайкового ключа.
+* Інструменти/предмети з GT5u та інструменти з GT6 тепер мають коректно працювати з функцією накладення та перенесення рецепта.
+
+### Обробник інформаційних сторінок
+Хочете додати інформацію про блок чи предмет, не створюючи для нього величезну підказку? Ви можете додати інформацію про будь-який блок чи предмет, зареєструвавши його в обробнику інформації.
+
+Інформаційні сторінки відображаються під час пошуку рецептів або способів використання відповідного предмета. Усі відповідні предмети будуть циклічно змінюватися у верхній частині інформаційної сторінки.
+
+Ваш мод може викликати:
+```java
+FMLInterModComms.sendMessage("NotEnoughItems", "addItemInfo", nbt);
+```
+Де `nbt` — це `NBTTagCompound`, відформатований, як описано нижче.
+
+| Тег              | Тип                            | Опис                                                                                                                                                                                                                                                                 |
+|------------------|--------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `filter`         | `String`                       | Текстовий фільтр для визначення предметів, для яких має відображатися ця інформаційна сторінка.<br/>Можна використовувати `modname:itemname`, метадані, теги OreDictionary та регулярні вирази. Повний формат можна переглянути у `config/NEI/collapsibleitems.cfg`. |
+| `page` / `pages` | `String` / `String NBTTagList` | Безпосередньо текст для відображення. Різницю між одно- та багатосторінковими повідомленнями див. нижче.<br/>Обидва формати підтримують автоматичний переклад наданих рядків.                                                                                        |
+
+#### Односторінковий формат
+
+Використовуйте текстовий тег `"page"`, якщо хочете додати лише одну сторінку інформації:
+```java
+NBTTagCompound tag = new NBTTagCompound();
+tag.setString("filter", "minecraft:log 3");
+tag.setString("page", "Exotic wood found in tropical climates.");
+
+FMLInterModComms.sendMessage("NotEnoughItems", "addItemInfo", tag);
+```
+
+#### Багатосторінковий формат
+
+Використовуйте тег `"pages"` як `NBTTagList` із рядків, якщо потрібно додати понад одну сторінку:
+```java
+NBTTagCompound tag = new NBTTagCompound();
+tag.setString("filter", "minecraft:diamond_sword");
+
+NBTTagList pages = new NBTTagList();
+pages.appendTag(new NBTTagString("A powerful melee weapon."));
+pages.appendTag(new NBTTagString("Can be enchanted for extra effects."));
+
+tag.setTag("pages", pages);
+
+FMLInterModComms.sendMessage("NotEnoughItems", "addItemInfo", tag);
+```
+* Кожен елемент списку — це одна сторінка.
+* Сторінки з’являтимуться в NEI з кнопками для їх гортання.
+
+#### Відповідність предметів
+
+Усі предмети, що відповідають фільтру `filter`, відображатимуть вашу інформаційну сторінку. Повний формат фільтра див. у `config/NEI/collapsibleitems.cfg`.
+
+#### Файл конфігурації інформації про предмети
+
+Якщо ви творець збірки модів і хочете створити власні інформаційні сторінки для предметів, їх можна легко додати у файлі `config/NEI/informationpages.cfg`, де також наведено ще кілька прикладів.
+
+## Інші примітки:
+
+* Вилучено стиль TMI
+* Вилучено збереження/завантаження стану інвентарю
+
+## Ліцензія
+
+Авторські права на модифікації від команди GTNH (c) 2019-2024 належать mitchej123 та команді GTNH.
+
+Поширюється за ліцензією LGPL-3.0 або новішої версії — використовуйте цей код на власний розсуд, але, будь ласка, діліться з розробниками будь-якими внесеними вами змінами.
+
+Окремі частини коду натхненні, запозичені або бекпортовані з [JEI](https://github.com/mezz/JustEnoughItems/tree/1.12) за ліцензією MIT.
+
+Авторські права на оригінальний код (c) 2014-2015 належать mezz; код поширювався за ліцензією MIT.

addon.gradle

@@ -0,0 +1,29 @@
+compileJava {
+    options.encoding = "UTF-8"
+}
+
+generateGrammarSource {
+    maxHeapSize = "128m"
+    arguments += ['-package', 'codechicken.nei.search', '-visitor', '-no-listener']
+    outputDirectory = file("${projectDir}/build/generated/sources/search/antlr/codechicken/nei/search/")
+}
+
+compileJava.dependsOn generateGrammarSource
+sourcesJar.dependsOn generateGrammarSource
+
+sourcesJar {
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}
+
+sourceSets {
+    main {
+        java.srcDirs += ["build/generated/sources/search/antlr/"]
+    }
+}
+
+test {
+    useJUnitPlatform()
+    testLogging {
+        events "passed", "skipped", "failed"
+    }
+}

build.gradle

@@ -1,729 +1,6 @@
-//version: 1644510936
-/*
-DO NOT CHANGE THIS FILE!
-
-Also, you may replace this file at any time if there is an update available.
-Please check https://github.com/GTNewHorizons/ExampleMod1.7.10/blob/main/build.gradle for updates.
-*/
-
-import org.gradle.internal.logging.text.StyledTextOutput 
-import org.gradle.internal.logging.text.StyledTextOutputFactory
-import org.gradle.internal.logging.text.StyledTextOutput.Style
-
-import com.github.jengelman.gradle.plugins.shadow.tasks.ConfigureShadowRelocation
-import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
-
-import java.util.concurrent.TimeUnit
-
-buildscript {
-    repositories {
-        maven {
-            name 'forge'
-            url 'https://maven.minecraftforge.net'
-        }
-        maven {
-            name 'sonatype'
-            url 'https://oss.sonatype.org/content/repositories/snapshots/'
-        }
-        maven {
-            name 'Scala CI dependencies'
-            url 'https://repo1.maven.org/maven2/'
-        }
-        maven {
-            name 'jitpack'
-            url 'https://jitpack.io'
-        }
-    }
-    dependencies {
-        classpath 'com.github.GTNewHorizons:ForgeGradle:1.2.7'
-    }
-}
+//version: 1707058017
 
 plugins {
-    id 'java-library'
-    id 'idea'
-    id 'eclipse'
-    id 'scala'
-    id 'maven-publish'
-    id('org.jetbrains.kotlin.jvm') version ('1.6.10') apply false
-    id('org.ajoberstar.grgit') version('4.1.1')
-    id('com.github.johnrengelman.shadow') version('4.0.4')
-    id('com.palantir.git-version') version('0.13.0') apply false
-    id('de.undercouch.download') version('5.0.1')
-}
-
-if (project.file('.git/HEAD').isFile()) {
-    apply plugin: 'com.palantir.git-version'
-}
-
-def out = services.get(StyledTextOutputFactory).create("an-output")
-
-apply plugin: 'forge'
-
-def projectJavaVersion = JavaLanguageVersion.of(8)
-
-java {
-    toolchain {
-        languageVersion.set(projectJavaVersion)
-    }
-}
-
-idea {
-    module {
-        inheritOutputDirs = true
-        downloadJavadoc = true
-        downloadSources = true
-    }
-}
-
-if(JavaVersion.current() != JavaVersion.VERSION_1_8) {
-    throw new GradleException("This project requires Java 8, but it's running on " + JavaVersion.current())
-}
-
-checkPropertyExists("modName")
-checkPropertyExists("modId")
-checkPropertyExists("modGroup")
-checkPropertyExists("autoUpdateBuildScript")
-checkPropertyExists("minecraftVersion")
-checkPropertyExists("forgeVersion")
-checkPropertyExists("replaceGradleTokenInFile")
-checkPropertyExists("gradleTokenModId")
-checkPropertyExists("gradleTokenModName")
-checkPropertyExists("gradleTokenVersion")
-checkPropertyExists("gradleTokenGroupName")
-checkPropertyExists("apiPackage")
-checkPropertyExists("accessTransformersFile")
-checkPropertyExists("usesMixins")
-checkPropertyExists("mixinPlugin")
-checkPropertyExists("mixinsPackage")
-checkPropertyExists("coreModClass")
-checkPropertyExists("containsMixinsAndOrCoreModOnly")
-checkPropertyExists("usesShadowedDependencies")
-checkPropertyExists("developmentEnvironmentUserName")
-
-boolean noPublishedSources = project.findProperty("noPublishedSources") ? project.noPublishedSources.toBoolean() : false
-
-String javaSourceDir = "src/main/java/"
-String scalaSourceDir = "src/main/scala/"
-String kotlinSourceDir = "src/main/kotlin/"
-
-String targetPackageJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/")
-String targetPackageScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/")
-String targetPackageKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/")
-if(!(getFile(targetPackageJava).exists() || getFile(targetPackageScala).exists() || getFile(targetPackageKotlin).exists())) {
-    throw new GradleException("Could not resolve \"modGroup\"! Could not find " + targetPackageJava + " or " + targetPackageScala + " or " + targetPackageKotlin)
-}
-
-if(apiPackage) {
-    targetPackageJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + apiPackage.toString().replaceAll("\\.", "/")
-    targetPackageScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + apiPackage.toString().replaceAll("\\.", "/")
-    targetPackageKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + apiPackage.toString().replaceAll("\\.", "/")
-    if(!(getFile(targetPackageJava).exists() || getFile(targetPackageScala).exists() || getFile(targetPackageKotlin).exists())) {
-        throw new GradleException("Could not resolve \"apiPackage\"! Could not find " + targetPackageJava + " or " + targetPackageScala + " or " + targetPackageKotlin)
-    }
-}
-
-if(accessTransformersFile) {
-    String targetFile = "src/main/resources/META-INF/" + accessTransformersFile
-    if(!getFile(targetFile).exists()) {
-        throw new GradleException("Could not resolve \"accessTransformersFile\"! Could not find " + targetFile)
-    }
-}
-
-if(usesMixins.toBoolean()) {
-    if(mixinsPackage.isEmpty() || mixinPlugin.isEmpty()) {
-        throw new GradleException("\"mixinPlugin\" requires \"mixinsPackage\" and \"mixinPlugin\" to be set!")
-    }
-
-    targetPackageJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinsPackage.toString().replaceAll("\\.", "/")
-    targetPackageScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinsPackage.toString().replaceAll("\\.", "/")
-    targetPackageKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinsPackage.toString().replaceAll("\\.", "/")
-    if(!(getFile(targetPackageJava).exists() || getFile(targetPackageScala).exists() || getFile(targetPackageKotlin).exists())) {
-        throw new GradleException("Could not resolve \"mixinsPackage\"! Could not find " + targetPackageJava + " or " + targetPackageScala  + " or " + targetPackageKotlin)
-    }
-
-    String targetFileJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinPlugin.toString().replaceAll("\\.", "/") + ".java"
-    String targetFileScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinPlugin.toString().replaceAll("\\.", "/") + ".scala"
-    String targetFileScalaJava = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinPlugin.toString().replaceAll("\\.", "/") + ".java"
-    String targetFileKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + mixinPlugin.toString().replaceAll("\\.", "/") + ".kt"
-    if(!(getFile(targetFileJava).exists() || getFile(targetFileScala).exists() || getFile(targetFileScalaJava).exists() || getFile(targetFileKotlin).exists())) {
-        throw new GradleException("Could not resolve \"mixinPlugin\"! Could not find " + targetFileJava + " or " + targetFileScala + " or " + targetFileScalaJava + " or " + targetFileKotlin)
-    }
-}
-
-if(coreModClass) {
-    String targetFileJava = javaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + coreModClass.toString().replaceAll("\\.", "/") + ".java"
-    String targetFileScala = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + coreModClass.toString().replaceAll("\\.", "/") + ".scala"
-    String targetFileScalaJava = scalaSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + coreModClass.toString().replaceAll("\\.", "/") + ".java"
-    String targetFileKotlin = kotlinSourceDir + modGroup.toString().replaceAll("\\.", "/") + "/" + coreModClass.toString().replaceAll("\\.", "/") + ".kt"
-    if(!(getFile(targetFileJava).exists() || getFile(targetFileScala).exists() || getFile(targetFileScalaJava).exists() || getFile(targetFileKotlin).exists())) {
-        throw new GradleException("Could not resolve \"coreModClass\"! Could not find " + targetFileJava + " or " + targetFileScala + " or " + targetFileScalaJava + " or " + targetFileKotlin)
-    }
-}
-
-configurations.all {
-    resolutionStrategy.cacheChangingModulesFor(0, TimeUnit.SECONDS)
-
-    // Make sure GregTech build won't time out
-    System.setProperty("org.gradle.internal.http.connectionTimeout", 120000 as String)
-    System.setProperty("org.gradle.internal.http.socketTimeout", 120000 as String)
-}
-
-// Fix Jenkins' Git: chmod a file should not be detected as a change and append a '.dirty' to the version
-try {
-    'git config core.fileMode false'.execute()
-}
-catch (Exception e) {
-    out.style(Style.Failure).println("git isn't installed at all")
-}
-
-// Pulls version first from the VERSION env and then git tag
-String identifiedVersion
-String versionOverride = System.getenv("VERSION") ?: null
-try {
-    identifiedVersion = versionOverride == null ? gitVersion() : versionOverride
-}
-catch (Exception e) {
-    out.style(Style.Failure).text(
-        'This mod must be version controlled by Git AND the repository must provide at least one tag,\n' +
-        'or the VERSION override must be set! ').style(Style.SuccessHeader).text('(Do NOT download from GitHub using the ZIP option, instead\n' + 
-        'clone the repository, see ').style(Style.Info).text('https://gtnh.miraheze.org/wiki/Development').style(Style.SuccessHeader).println(' for details.)'
-    )
-    versionOverride = 'NO-GIT-TAG-SET'
-    identifiedVersion = versionOverride
-}
-version = minecraftVersion + '-' + identifiedVersion
-String modVersion = identifiedVersion
-
-if( identifiedVersion.equals(versionOverride) ) {
-    out.style(Style.Failure).text('Override version to ').style(Style.Identifier).text(modVersion).style(Style.Failure).println('!\7')
-}
-
-group = modGroup
-if(project.hasProperty("customArchiveBaseName") && customArchiveBaseName) {
-    archivesBaseName = customArchiveBaseName
-}
-else {
-    archivesBaseName = modId
-}
-
-
-def arguments = []
-def jvmArguments = []
-
-if(usesMixins.toBoolean()) {
-    arguments += [
-            "--tweakClass org.spongepowered.asm.launch.MixinTweaker"
-    ]
-    jvmArguments += [
-            "-Dmixin.debug.countInjections=true", "-Dmixin.debug.verbose=true", "-Dmixin.debug.export=true"
-    ]
-}
-
-minecraft {
-    version = minecraftVersion + "-" + forgeVersion + "-" + minecraftVersion
-    runDir = "run"
-
-    if (replaceGradleTokenInFile) {
-        replaceIn replaceGradleTokenInFile
-        if(gradleTokenModId) {
-            replace gradleTokenModId, modId
-        }
-        if(gradleTokenModName) {
-            replace gradleTokenModName, modName
-        }
-        if(gradleTokenVersion) {
-            replace gradleTokenVersion, modVersion
-        }
-        if(gradleTokenGroupName) {
-            replace gradleTokenGroupName, modGroup
-        }
-    }
-
-    clientIntellijRun {
-        args(arguments)
-        jvmArgs(jvmArguments)
-
-        if(developmentEnvironmentUserName) {
-            args("--username", developmentEnvironmentUserName)
-        }
-    }
-
-    serverIntellijRun {
-        args(arguments)
-        jvmArgs(jvmArguments)
-    }
-}
-
-if(file("addon.gradle").exists()) {
-    apply from: "addon.gradle"
-}
-
-apply from: 'repositories.gradle'
-
-configurations {
-    implementation.extendsFrom(shadowImplementation)  // TODO: remove after all uses are refactored
-    implementation.extendsFrom(shadowCompile)
-    implementation.extendsFrom(shadeCompile)
-}
-
-repositories {
-    maven {
-        name 'Overmind forge repo mirror'
-        url 'https://gregtech.overminddl1.com/'
-    }
-    if(usesMixins.toBoolean()) {
-        maven {
-            name 'sponge'
-            url 'https://repo.spongepowered.org/repository/maven-public'
-        }
-        maven {
-            url 'https://jitpack.io'
-        }
-    }
-}
-
-dependencies {
-    if(usesMixins.toBoolean()) {
-        annotationProcessor('org.ow2.asm:asm-debug-all:5.0.3')
-        annotationProcessor('com.google.guava:guava:24.1.1-jre')
-        annotationProcessor('com.google.code.gson:gson:2.8.6')
-        annotationProcessor('org.spongepowered:mixin:0.8-SNAPSHOT')
-        // using 0.8 to workaround a issue in 0.7 which fails mixin application
-        compile('com.github.GTNewHorizons:SpongePoweredMixin:0.7.12-GTNH') {
-            // Mixin includes a lot of dependencies that are too up-to-date
-            exclude module: 'launchwrapper'
-            exclude module: 'guava'
-            exclude module: 'gson'
-            exclude module: 'commons-io'
-            exclude module: 'log4j-core'
-        }
-        compile('com.github.GTNewHorizons:SpongeMixins:1.5.0')
-    }
-}
-
-apply from: 'dependencies.gradle'
-
-def mixingConfigRefMap = "mixins." + modId + ".refmap.json"
-def refMap = "${tasks.compileJava.temporaryDir}" + File.separator + mixingConfigRefMap
-def mixinSrg = "${tasks.reobf.temporaryDir}" + File.separator + "mixins.srg"
-
-task generateAssets {
-    if(usesMixins.toBoolean()) {
-        getFile("/src/main/resources/mixins." + modId + ".json").text = """{
-  "required": true,
-  "minVersion": "0.7.11",
-  "package": "${modGroup}.${mixinsPackage}",
-  "plugin": "${modGroup}.${mixinPlugin}",
-  "refmap": "${mixingConfigRefMap}",
-  "target": "@env(DEFAULT)",
-  "compatibilityLevel": "JAVA_8"
-}
-
-"""
-    }
-}
-
-task relocateShadowJar(type: ConfigureShadowRelocation) {
-    target = tasks.shadowJar
-    prefix = modGroup + ".shadow"
-}
-
-shadowJar {
-    project.configurations.shadeCompile.each { dep ->
-        from(project.zipTree(dep)) {
-            exclude 'META-INF', 'META-INF/**'
-        }
-    }
-
-    manifest {
-        attributes(getManifestAttributes())
-    }
-
-    minimize()  // This will only allow shading for actually used classes
-    configurations = [project.configurations.shadowImplementation, project.configurations.shadowCompile]
-    dependsOn(relocateShadowJar)
-}
-
-jar {
-    project.configurations.shadeCompile.each { dep ->
-        from(project.zipTree(dep)) {
-            exclude 'META-INF', 'META-INF/**'
-        }
-    }
-
-    manifest {
-        attributes(getManifestAttributes())
-    }
-
-    if(usesShadowedDependencies.toBoolean()) {
-        dependsOn(shadowJar)
-        enabled = false
-    }
-}
-
-reobf {
-    if(usesMixins.toBoolean()) {
-        addExtraSrgFile mixinSrg
-    }
-}
-
-afterEvaluate {
-    if(usesMixins.toBoolean()) {
-        tasks.compileJava {
-            options.compilerArgs += [
-                    "-AreobfSrgFile=${tasks.reobf.srg}",
-                    "-AoutSrgFile=${mixinSrg}",
-                    "-AoutRefMapFile=${refMap}",
-                    // Elan: from what I understand they are just some linter configs so you get some warning on how to properly code
-                    "-XDenableSunApiLintControl",
-                    "-XDignore.symbol.file"
-            ]
-        }
-    }
-}
-
-runClient {
-    if(developmentEnvironmentUserName) {
-        arguments += [
-                "--username",
-                developmentEnvironmentUserName
-        ]
-    }
-
-    args(arguments)
-    jvmArgs(jvmArguments)
-}
-
-runServer {
-    args(arguments)
-    jvmArgs(jvmArguments)
-}
-
-tasks.withType(JavaExec).configureEach {
-    javaLauncher.set(
-            javaToolchains.launcherFor {
-                languageVersion = projectJavaVersion
-            }
-    )
-}
-
-processResources
-{
-    // this will ensure that this task is redone when the versions change.
-    inputs.property "version", project.version
-    inputs.property "mcversion", project.minecraft.version
-    
-    // replace stuff in mcmod.info, nothing else
-    from(sourceSets.main.resources.srcDirs) {
-        include 'mcmod.info'
-
-        // replace modVersion and minecraftVersion
-        expand "minecraftVersion": project.minecraft.version,
-            "modVersion": modVersion,
-            "modId": modId,
-            "modName": modName
-    }
-
-    if(usesMixins.toBoolean()) {
-        from refMap
-    }
-
-    // copy everything else that's not the mcmod.info
-    from(sourceSets.main.resources.srcDirs) {
-        exclude 'mcmod.info'
-    }
-}
-
-def getManifestAttributes() {
-    def manifestAttributes = [:]
-    if(containsMixinsAndOrCoreModOnly.toBoolean() == false && (usesMixins.toBoolean() || coreModClass)) {
-        manifestAttributes += ["FMLCorePluginContainsFMLMod": true]
-    }
-
-    if(accessTransformersFile) {
-        manifestAttributes += ["FMLAT" : accessTransformersFile.toString()]
-    }
-
-    if(coreModClass) {
-        manifestAttributes += ["FMLCorePlugin": modGroup + "." + coreModClass]
-    }
-
-    if(usesMixins.toBoolean()) {
-        manifestAttributes += [
-                "TweakClass" : "org.spongepowered.asm.launch.MixinTweaker",
-                "MixinConfigs" : "mixins." + modId + ".json",
-                "ForceLoadAsMod" : containsMixinsAndOrCoreModOnly.toBoolean() == false
-        ]
-    }
-    return manifestAttributes
-}
-
-task sourcesJar(type: Jar) {
-    from (sourceSets.main.allJava)
-    from (file("$projectDir/LICENSE"))
-    getArchiveClassifier().set('sources')
-}
-
-task shadowDevJar(type: ShadowJar) {
-    project.configurations.shadeCompile.each { dep ->
-        from(project.zipTree(dep)) {
-            exclude 'META-INF', 'META-INF/**'
-        }
-    }
-
-    from sourceSets.main.output
-    getArchiveClassifier().set("dev")
-
-    manifest {
-        attributes(getManifestAttributes())
-    }
-
-    minimize()  // This will only allow shading for actually used classes
-    configurations = [project.configurations.shadowImplementation, project.configurations.shadowCompile]
-}
-
-task relocateShadowDevJar(type: ConfigureShadowRelocation) {
-    target = tasks.shadowDevJar
-    prefix = modGroup + ".shadow"
-}
-
-task circularResolverJar(type: Jar) {
-    dependsOn(relocateShadowDevJar)
-    dependsOn(shadowDevJar)
-    enabled = false
-}
-
-task devJar(type: Jar) {
-    project.configurations.shadeCompile.each { dep ->
-        from(project.zipTree(dep)) {
-            exclude 'META-INF', 'META-INF/**'
-        }
-    }
-
-    from sourceSets.main.output
-    getArchiveClassifier().set("dev")
-
-    manifest {
-        attributes(getManifestAttributes())
-    }
-
-    if(usesShadowedDependencies.toBoolean()) {
-        dependsOn(circularResolverJar)
-        enabled = false
-    }
-}
-
-task apiJar(type: Jar) {
-    from (sourceSets.main.allJava) {
-        include modGroup.toString().replaceAll("\\.", "/") + "/" + apiPackage.toString().replaceAll("\\.", "/") + '/**'
-    }
-
-    from (sourceSets.main.output) {
-        include modGroup.toString().replaceAll("\\.", "/") + "/" + apiPackage.toString().replaceAll("\\.", "/") + '/**'
-    }
-
-    from (sourceSets.main.resources.srcDirs) {
-        include("LICENSE")
-    }
-
-    getArchiveClassifier().set('api')
-}
-
-artifacts {
-    if(!noPublishedSources) {
-        archives sourcesJar
-    }
-    archives devJar
-    if(apiPackage) {
-        archives apiJar
-    }
-}
-
-// The gradle metadata includes all of the additional deps that we disabled from POM generation (including forgeBin with no groupID), 
-// and isn't strictly needed with the POM so just disable it.
-tasks.withType(GenerateModuleMetadata) {
-    enabled = false
-}
-
-publishing {
-    publications {
-        maven(MavenPublication) {
-            from components.java
-            if(usesShadowedDependencies.toBoolean()) {
-                artifact source: shadowJar, classifier: ""
-            }
-            if(!noPublishedSources) {
-                artifact source: sourcesJar, classifier: "src"
-            }
-            artifact source: usesShadowedDependencies.toBoolean() ? shadowDevJar : devJar, classifier: "dev"
-            if (apiPackage) {
-                artifact source: apiJar, classifier: "api"
-            }
-
-            groupId = System.getenv("ARTIFACT_GROUP_ID") ?: "com.github.GTNewHorizons"
-            artifactId = System.getenv("ARTIFACT_ID") ?: project.name
-            // Using the identified version, not project.version as it has the prepended 1.7.10
-            version = System.getenv("RELEASE_VERSION") ?: identifiedVersion
-            
-            // remove extra garbage from who knows where
-            pom.withXml {
-                def badPomGroup = ['net.minecraft', 'com.google.code.findbugs', 'org.ow2.asm', 'com.typesafe.akka', 'com.typesafe', 'org.scala-lang',
-                                   'org.scala-lang.plugins', 'net.sf.jopt-simple', 'lzma', 'com.mojang', 'org.apache.commons', 'org.apache.httpcomponents',
-                                   'commons-logging', 'java3d', 'net.sf.trove4j', 'com.ibm.icu', 'com.paulscode', 'io.netty', 'com.google.guava', 
-                                   'commons-io', 'commons-codec', 'net.java.jinput', 'net.java.jutils', 'com.google.code.gson', 'org.apache.logging.log4j', 
-                                   'org.lwjgl.lwjgl', 'tv.twitch', '']
-                Node pomNode = asNode()
-                pomNode.dependencies.'*'.findAll() {
-                    badPomGroup.contains(it.groupId.text()) 
-                }.each() {
-                    it.parent().remove(it)
-                }
-            }
-        }
-    }
-
-    repositories {
-        maven {
-            url = "http://jenkins.usrv.eu:8081/nexus/content/repositories/releases"
-            credentials {
-                username = System.getenv("MAVEN_USER") ?: "NONE"
-                password = System.getenv("MAVEN_PASSWORD") ?: "NONE"
-            }
-        }
-    }
-}
-
-// Updating
-task updateBuildScript {
-    doLast {
-        if (performBuildScriptUpdate(projectDir.toString())) return
-
-        print("Build script already up-to-date!")
-    }
-}
-
-if (isNewBuildScriptVersionAvailable(projectDir.toString())) {
-    if (autoUpdateBuildScript.toBoolean()) {
-        performBuildScriptUpdate(projectDir.toString())
-    } else {
-        out.style(Style.SuccessHeader).println("Build script update available! Run 'gradle updateBuildScript'")
-    }
-}
-
-static URL availableBuildScriptUrl() {
-    new URL("https://raw.githubusercontent.com/GTNewHorizons/ExampleMod1.7.10/main/build.gradle")
-}
-
-boolean performBuildScriptUpdate(String projectDir) {
-    if (isNewBuildScriptVersionAvailable(projectDir)) {
-        def buildscriptFile = getFile("build.gradle")
-        availableBuildScriptUrl().withInputStream { i -> buildscriptFile.withOutputStream { it << i } }
-        out.style(Style.Success).print("Build script updated. Please REIMPORT the project or RESTART your IDE!")
-        return true
-    }
-    return false
-}
-
-boolean isNewBuildScriptVersionAvailable(String projectDir) {
-    Map parameters = ["connectTimeout": 2000, "readTimeout": 2000]
-
-    String currentBuildScript = getFile("build.gradle").getText()
-    String currentBuildScriptHash = getVersionHash(currentBuildScript)
-    String availableBuildScript = availableBuildScriptUrl().newInputStream(parameters).getText()
-    String availableBuildScriptHash = getVersionHash(availableBuildScript)
-
-    boolean isUpToDate = currentBuildScriptHash.empty || availableBuildScriptHash.empty || currentBuildScriptHash == availableBuildScriptHash
-    return !isUpToDate
-}
-
-static String getVersionHash(String buildScriptContent) {
-    String versionLine = buildScriptContent.find("^//version: [a-z0-9]*")
-    if(versionLine != null) {
-        return versionLine.split(": ").last()
-    }
-    return ""
-}
-
-configure(updateBuildScript) {
-    group = 'forgegradle'
-    description = 'Updates the build script to the latest version'
-}
-
-// Deobfuscation
-
-def deobf(String sourceURL) {
-    try {
-        URL url = new URL(sourceURL)
-        String fileName = url.getFile()
-
-        //get rid of directories:
-        int lastSlash = fileName.lastIndexOf("/")
-        if(lastSlash > 0) {
-            fileName = fileName.substring(lastSlash + 1)
-        }
-        //get rid of extension:
-        if(fileName.endsWith(".jar")) {
-            fileName = fileName.substring(0, fileName.lastIndexOf("."))
-        }
-
-        String hostName = url.getHost()
-        if(hostName.startsWith("www.")) {
-            hostName = hostName.substring(4)
-        }
-        List parts = Arrays.asList(hostName.split("\\."))
-        Collections.reverse(parts)
-        hostName = String.join(".", parts)
-
-        return deobf(sourceURL, hostName + "/" + fileName)
-    } catch(Exception e) {
-        return deobf(sourceURL, "deobf/" + String.valueOf(sourceURL.hashCode()))
-    }
-}
-
-// The method above is to be preferred. Use this method if the filename is not at the end of the URL.
-def deobf(String sourceURL, String fileName) {
-    String cacheDir = System.getProperty("user.home") + "/.gradle/caches/"
-    String bon2Dir = cacheDir + "forge_gradle/deobf"
-    String bon2File  = bon2Dir + "/BON2-2.5.0.jar"
-    String obfFile = cacheDir + "modules-2/files-2.1/" + fileName + ".jar"
-    String deobfFile = cacheDir + "modules-2/files-2.1/" + fileName + "-deobf.jar"
-    
-    if(file(deobfFile).exists()) {
-        return files(deobfFile)
-    }
-
-    download.run {
-        src 'https://github.com/GTNewHorizons/BON2/releases/download/2.5.0/BON2-2.5.0.CUSTOM-all.jar'
-        dest bon2File
-        quiet true
-        overwrite false
-    }
-
-    download.run {
-        src sourceURL
-        dest obfFile
-        quiet true
-        overwrite false
-    }
-
-    exec {
-        commandLine 'java', '-jar', bon2File, '--inputJar', obfFile, '--outputJar', deobfFile, '--mcVer', '1.7.10', '--mappingsVer', 'stable_12', '--notch'
-        workingDir bon2Dir
-        standardOutput = new ByteArrayOutputStream()
-    }
-
-    return files(deobfFile)
-}
-
-// Helper methods
-
-def checkPropertyExists(String propertyName) {
-    if (project.hasProperty(propertyName) == false) {
-        throw new GradleException("This project requires a property \"" + propertyName + "\"! Please add it your \"gradle.properties\". You can find all properties and their description here: https://github.com/GTNewHorizons/ExampleMod1.7.10/blob/main/gradle.properties")
-    }
-}
-
-def getFile(String relativePath) {
-    return new File(projectDir, relativePath)
+    id 'antlr'
+    id 'com.gtnewhorizons.gtnhconvention'
 }

dependencies.gradle

@@ -1,7 +1,42 @@
 // Add your dependencies here
+configurations.create('gtnhlibEmbed') {
+    canBeConsumed = false
+    canBeResolved = true
+}
 
 dependencies {
-    compile('com.github.GTNewHorizons:CodeChickenLib:1.1.5.3:dev')
-    compile('com.github.GTNewHorizons:CodeChickenCore:1.1.3:dev')
-    shadowImplementation('org.apache.commons:commons-csv:1.8')
+    api('com.github.GTNewHorizons:CodeChickenCore:1.4.22:dev')
+    devOnlyNonPublishable('com.github.GTNewHorizons:GTNHLib:0.11.54:dev')
+
+    shadowImplementation('org.apache.commons:commons-csv:1.10.0')
+
+    compileOnly('maven.modrinth:forge-essentials:7.5.1')
+    compileOnly('com.cardinalstar.cubicchunks:CubicChunks1710:v0.1.14-alpha:dev')
+
+    antlr('org.antlr:antlr4:4.13.2')
+    shadowImplementation('org.antlr:antlr4-runtime:4.13.2')
+
+    testImplementation(platform('org.junit:junit-bom:5.13.4'))
+    testImplementation('org.junit.jupiter:junit-jupiter')
+    testImplementation("org.mockito:mockito-core:5.+")
+
+    testRuntimeOnly('org.junit.platform:junit-platform-launcher')
+    testRuntimeOnly("org.lwjgl.lwjgl:lwjgl:2.9.3");
+
+    compileOnly("com.github.GTNewHorizons:GTNHLib:0.11.54") { transitive = false }
+    gtnhlibEmbed("com.github.GTNewHorizons:GTNHLib:0.11.54") { transitive = false }
+}
+
+def embedArchiveOperations = gtnhGradle.archiveOperations
+def gtnhlibEmbedContents = configurations.gtnhlibEmbed.elements.map { files ->
+    files.collect { embedArchiveOperations.zipTree(it.asFile) }
+}
+
+[tasks.jar, tasks.shadowJar].each {
+    it.configure {
+        from(gtnhlibEmbedContents) {
+            include 'com/gtnewhorizon/gtnhlib/color/ColorResource.class'
+            include 'com/gtnewhorizon/gtnhlib/color/ColorResource$*.class'
+        }
+    }
 }

gradle.properties

@@ -1,60 +1,243 @@
+# ExampleMod tag to use as Blowdryer (Spotless, etc.) settings version, leave empty to disable.
+# LOCAL to test local config updates.
+gtnh.settings.blowdryerTag = 0.2.0
+
+# Human-readable mod name, available for mcmod.info population.
 modName = NotEnoughItems
 
-# This is a case-sensitive string to identify your mod. Convention is to use lower case.
+# Case-sensitive identifier string, available for mcmod.info population and used for automatic mixin JSON generation.
+# Conventionally lowercase.
 modId = NotEnoughItems
 
+# Root package of the mod, used to find various classes in other properties,
+# mcmod.info substitution, enabling assertions in run tasks, etc.
 modGroup = codechicken.nei
 
-# WHY is there no version field?
-# The build script relies on git to provide a version via tags. It is super easy and will enable you to always know the
-# code base or your binary. Check out this tutorial: https://blog.mattclemente.com/2017/10/13/versioning-with-git-tags/
+# Whether to use modGroup as the maven publishing group.
+# When false, com.github.GTNewHorizons is used.
+useModGroupForPublishing = false
 
-# Will update your build.gradle automatically whenever an update is available
+# Updates your build.gradle and settings.gradle automatically whenever an update is available.
 autoUpdateBuildScript = false
 
+# Version of Minecraft to target
 minecraftVersion = 1.7.10
+
+# Version of Minecraft Forge to target
 forgeVersion = 10.13.4.1614
 
-# Select a username for testing your mod with breakpoints. You may leave this empty for a random username each time you
-# restart Minecraft in development. Choose this dependent on your mod:
-# Do you need consistent player progressing (for example Thaumcraft)? -> Select a name
-# Do you need to test how your custom blocks interacts with a player that is not the owner? -> leave name empty
+# Specify an MCP channel for dependency deobfuscation and the deobfParams task.
+channel = stable
+
+# Specify an MCP mappings version for dependency deobfuscation and the deobfParams task.
+mappingsVersion = 12
+
+# Defines other MCP mappings for dependency deobfuscation.
+remoteMappings = https\://raw.githubusercontent.com/MinecraftForge/FML/1.7.10/conf/
+
+# Select a default username for testing your mod. You can always override this per-run by running
+# `./gradlew runClient --username=AnotherPlayer`, or configuring this command in your IDE.
 developmentEnvironmentUserName = Developer
 
-# Define a source file of your project with:
+# Enables modern Java syntax support. Valid values:
+# - false: No modern syntax, Java 8 only
+# - jabel: Jabel syntax-only support, compiles to J8 bytecode
+# - jvmDowngrader: Full modern Java via JVM Downgrader (syntax + stdlib APIs)
+# - modern: Native modern Java bytecode, no downgrading
+enableModernJavaSyntax = jabel
+
+# If set, ignores the above setting and compiles with the given toolchain. This may cause unexpected issues,
+# and should *not* be used in most situations. -1 disables this.
+# forceToolchainVersion = -1
+
+# Target JVM version for JVM Downgrader bytecode downgrading.
+# Only used when enableModernJavaSyntax = jvmDowngrader
+# downgradeTargetVersion = 8
+
+# Comma-separated list of Java versions for multi-release jar support (JVM Downgrader only).
+# Classes will be available in META-INF/versions/N/ for each version N in this list.
+# Default: "21,25" (J25+ gets native classes, J21-24 gets partial downgrade, J8-20 gets full downgrade).
+# jvmDowngraderMultiReleaseVersions = 21,25
+
+# Specifies how JVM Downgrader API stubs are provided. Options:
+# - shade: Shade minimized stubs into the jar
+# - gtnhlib: GTNHLib provides stubs at runtime (adds version constraint)
+# - external: Another dependency provides stubs (no constraint, no warning)
+# - (empty): Warning reminding you to configure stubs
+# Note: 'shade' option requires you to verify license compliance, see: https://github.com/unimined/JvmDowngrader/blob/main/LICENSE.md
+# jvmDowngraderStubsProvider =
+
+# Enables injecting missing generics into the decompiled source code for a better coding experience.
+# Turns most publicly visible List, Map, etc. into proper List<E>, Map<K, V> types.
+enableGenericInjection = true
+
+# Generate a class with a String field for the mod version named as defined below.
+# If generateGradleTokenClass is empty or not missing, no such class will be generated.
+# If gradleTokenVersion is empty or missing, the field will not be present in the class.
+generateGradleTokenClass = codechicken.nei.Tags
+
+# Name of the token containing the project's current version to generate/replace.
+gradleTokenVersion = VERSION
+
+# [DEPRECATED] Mod ID replacement token.
+gradleTokenModId =
+
+# [DEPRECATED] Mod name replacement token.
+gradleTokenModName =
+
+# [DEPRECATED] Mod Group replacement token.
+gradleTokenGroupName =
+
+# [DEPRECATED]
+# Multiple source files can be defined here by providing a comma-separated list: Class1.java,Class2.java,Class3.java
 # public static final String VERSION = "GRADLETOKEN_VERSION";
 # The string's content will be replaced with your mod's version when compiled. You should use this to specify your mod's
-# version in @Mod([...], version = VERSION, [...])
-# Leave these properties empty to skip individual token replacements
-replaceGradleTokenInFile = NEIModContainer.java
-gradleTokenModId = GRADLETOKEN_MODID
-gradleTokenModName = GRADLETOKEN_MODNAME
-gradleTokenVersion = GRADLETOKEN_VERSION
-gradleTokenGroupName =
+# version in @Mod([...], version = VERSION, [...]).
+# Leave these properties empty to skip individual token replacements.
+replaceGradleTokenInFile =
 
 # In case your mod provides an API for other mods to implement you may declare its package here. Otherwise, you can
 # leave this property empty.
-# Example value: apiPackage = api + modGroup = com.myname.mymodid -> com.myname.mymodid.api
+# Example value: (apiPackage = api) + (modGroup = com.myname.mymodid) -> com.myname.mymodid.api
 apiPackage =
 
 # Specify the configuration file for Forge's access transformers here. It must be placed into /src/main/resources/META-INF/
-# Example value: mymodid_at.cfg
+# There can be multiple files in a space-separated list.
+# Example value: mymodid_at.cfg nei_at.cfg
 accessTransformersFile = nei_at.cfg
 
 # Provides setup for Mixins if enabled. If you don't know what mixins are: Keep it disabled!
 usesMixins = false
-# Specify the location of your implementation of IMixinPlugin. Leave it empty otherwise.
+
+# Set to a non-empty string to configure mixins in a separate source set under src/VALUE, instead of src/main.
+# This can speed up compile times thanks to not running the mixin annotation processor on all input sources.
+# Mixin classes will have access to "main" classes, but not the other way around.
+separateMixinSourceSet =
+
+# Adds some debug arguments like verbose output and class export.
+usesMixinDebug = false
+
+# Specify the location of your implementation of IMixinConfigPlugin. Leave it empty otherwise.
 mixinPlugin =
-# Specify the package that contains all of your Mixins. You may only place Mixins in this package or the build will fail!
+
+# Specify the package that contains all of your Mixins. The package must exist or
+# the build will fail. If you have a package property defined in your mixins.<modid>.json,
+# it must match with this or the build will fail.
 mixinsPackage =
+
 # Specify the core mod entry class if you use a core mod. This class must implement IFMLLoadingPlugin!
 # This parameter is for legacy compatibility only
-# Example value: coreModClass = asm.FMLPlugin + modGroup = com.myname.mymodid -> com.myname.mymodid.asm.FMLPlugin
+# Example value: (coreModClass = asm.FMLPlugin) + (modGroup = com.myname.mymodid) -> com.myname.mymodid.asm.FMLPlugin
 coreModClass = asm.NEICorePlugin
+
 # If your project is only a consolidation of mixins or a core mod and does NOT contain a 'normal' mod ( = some class
 # that is annotated with @Mod) you want this to be true. When in doubt: leave it on false!
 containsMixinsAndOrCoreModOnly = true
 
-# If enabled, you may use 'shadowImplementation' for dependencies. They will be integrated in your jar. It is your
-# responsibility check the licence and request permission for distribution, if required.
+# Enables Mixins even if this mod doesn't use them, useful if one of the dependencies uses mixins.
+forceEnableMixins = false
+
+# If enabled, you may use 'shadowCompile' for dependencies. They will be integrated into your jar. It is your
+# responsibility to check the license and request permission for distribution if required.
 usesShadowedDependencies = true
+
+# If disabled, won't remove unused classes from shadowed dependencies. Some libraries use reflection to access
+# their own classes, making the minimization unreliable.
+minimizeShadowedDependencies = true
+
+# If disabled, won't rename the shadowed classes.
+relocateShadowedDependencies = true
+
+# Adds CurseMaven, Modrinth, and some more well-known 1.7.10 repositories.
+includeWellKnownRepositories = true
+
+# A list of repositories to exclude from the includeWellKnownRepositories setting. Should be a space separated
+# list of strings, with the acceptable keys being(case does not matter):
+# cursemaven
+# modrinth
+excludeWellKnownRepositories =
+
+# Change these to your Maven coordinates if you want to publish to a custom Maven repository instead of the default GTNH Maven.
+# Authenticate with the MAVEN_USER and MAVEN_PASSWORD environment variables.
+# If you need a more complex setup disable maven publishing here and add a publishing repository to addon.gradle.
+usesMavenPublishing = true
+
+# Maven repository to publish the mod to.
+# mavenPublishUrl = https\://nexus.gtnewhorizons.com/repository/releases/
+
+# Publishing to Modrinth requires you to set the MODRINTH_TOKEN environment variable to your current Modrinth API token.
+#
+# The project's ID on Modrinth. Can be either the slug or the ID.
+# Leave this empty if you don't want to publish to Modrinth.
+modrinthProjectId = notenoughitems-unofficial
+
+# The project's relations on Modrinth. You can use this to refer to other projects on Modrinth.
+# Syntax: scope1-type1:name1;scope2-type2:name2;...
+# Where scope can be one of [required, optional, incompatible, embedded],
+#       type can be one of [project, version],
+#       and the name is the Modrinth project or version slug/id of the other mod.
+# Example: required-project:fplib;optional-project:gasstation;incompatible-project:gregtech
+# Note: UniMixins is automatically set as a required dependency if usesMixins = true.
+modrinthRelations = required-project\:codechickencore-unofficial
+
+# Publishing to CurseForge requires you to set the CURSEFORGE_TOKEN environment variable to one of your CurseForge API tokens.
+#
+# The project's numeric ID on CurseForge. You can find this in the About Project box.
+# Leave this empty if you don't want to publish on CurseForge.
+curseForgeProjectId = 358228
+
+# Comma-separated supported CurseForge environments: client, server (case-insensitive).
+# Use client or server for mods that only support one environment. Defaults to client,server.
+# These tags describe where the mod can run, not whether installation is required on both sides.
+curseForgeEnvironments = client,server
+
+# The project's relations on CurseForge. You can use this to refer to other projects on CurseForge.
+# Syntax: type1:name1;type2:name2;...
+# Where type can be one of [requiredDependency, embeddedLibrary, optionalDependency, tool, incompatible],
+#       and the name is the CurseForge project slug of the other mod.
+# Example: requiredDependency:railcraft;embeddedLibrary:cofhlib;incompatible:buildcraft
+# Note: UniMixins is automatically set as a required dependency if usesMixins = true.
+curseForgeRelations = requiredDependency\:codechickencore-unofficial
+
+# Optional parameter to customize the produced artifacts. Use this to preserve artifact naming when migrating older
+# projects. New projects should not use this parameter.
+# customArchiveBaseName =
+
+# Optional parameter to customize the default working directory used by the runClient* tasks. Relative to the project directory.
+# runClientWorkingDirectory = run/client
+
+# Optional parameter to customize the default working directory used by the runServer* tasks. Relative to the project directory.
+# runServerWorkingDirectory = run/server
+
+# Optional parameter to have the build automatically fail if an illegal version is used.
+# This can be useful if you e.g. only want to allow versions in the form of '1.1.xxx'.
+# The check is ONLY performed if the version is a git tag.
+# Note: the specified string must be escaped, so e.g. 1\\.1\\.\\d+ instead of 1\.1\.\d+
+# versionPattern =
+
+# Uncomment to prevent the source code from being published.
+# noPublishedSources = true
+
+# Uncomment this to disable Spotless checks.
+# This should only be uncommented to keep it easier to sync with upstream/other forks.
+# That is, if there is no other active fork/upstream, NEVER change this.
+# disableSpotless = true
+
+# Uncomment this to disable Checkstyle checks (currently wildcard import check).
+# disableCheckstyle = true
+
+# Override the IDEA build type. Valid values are: "" (leave blank, do not override), "idea" (force use native IDEA build), "gradle"
+# (force use delegated build).
+# This is meant to be set in $HOME/.gradle/gradle.properties.
+# e.g. add "systemProp.org.gradle.project.ideaOverrideBuildType=idea" will override the build type to be native build.
+# WARNING: If you do use this option, it will overwrite whatever you have in your existing projects. This might not be what you want!
+# Usually there is no need to uncomment this here as other developers do not necessarily use the same build type as you.
+# ideaOverrideBuildType = idea
+
+# Whether IDEA should run spotless checks when pressing the Build button.
+# This is meant to be set in $HOME/.gradle/gradle.properties.
+# ideaCheckSpotlessOnBuild = true
+
+# Non-GTNH properties
+org.gradle.configuration-cache = true
+org.gradle.parallel = true

gradle/gradle-daemon-jvm.properties

@@ -0,0 +1,12 @@
+#This file is generated by updateDaemonJvm
+toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/539ea72837c6244075f8ee037babc29e/redirect
+toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/876dbbf00bf4ef6190f7da074cee903a/redirect
+toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/539ea72837c6244075f8ee037babc29e/redirect
+toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/876dbbf00bf4ef6190f7da074cee903a/redirect
+toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/9064f22734b42ac03e85df04b632e167/redirect
+toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/4d0277c49991306ac78048580fe34bcf/redirect
+toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/539ea72837c6244075f8ee037babc29e/redirect
+toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/876dbbf00bf4ef6190f7da074cee903a/redirect
+toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/a9fa3b809e484a1e1ac4308a5dda661a/redirect
+toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/aa99913fa6d767d899ffc96082da01ca/redirect
+toolchainVersion=25

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,9 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.7.1-bin.zip
+networkTimeout=10000
+retries=0
+retryBackOffMs=500
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,7 +1,7 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
 #
-# Copyright 2015 the original author or authors.
+# Copyright © 2015 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,80 +15,114 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
-##
-##  Gradle start up script for UN*X
-##
+#
+#   gradlew start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh gradlew
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/3d91ce3b8caaf77ad09f381f43615b715b53f72c/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
 ##############################################################################
 
 # Attempt to set APP_HOME
+
 # Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
 done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
 
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
+MAX_FD=maximum
 
 warn () {
     echo "$*"
-}
+} >&2
 
 die () {
     echo
     echo "$*"
     echo
     exit 1
-}
+} >&2
 
 # OS specific support (must be 'true' or 'false').
 cygwin=false
 msys=false
 darwin=false
 nonstop=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
 esac
 
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
 
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
         # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
+        JAVACMD=$JAVA_HOME/jre/sh/java
     else
-        JAVACMD="$JAVA_HOME/bin/java"
+        JAVACMD=$JAVA_HOME/bin/java
     fi
     if [ ! -x "$JAVACMD" ] ; then
         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
@@ -97,92 +131,118 @@ Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
     fi
 else
-    JAVACMD="java"
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
-    if [ $? -eq 0 ] ; then
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            MAX_FD="$MAX_FD_LIMIT"
-        fi
-        ulimit -n $MAX_FD
-        if [ $? -ne 0 ] ; then
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        fi
-    else
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
-        fi
-        i=$((i+1))
-    done
-    case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
 fi
 
-# Escape application args
-save () {
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-    echo " "
-}
-APP_ARGS=$(save "$@")
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
 
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
 
-# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
-if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
-  cd "$(dirname "$0")"
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
 fi
 
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
 exec "$JAVACMD" "$@"

gradlew.bat

@@ -13,22 +13,28 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
-@rem  Gradle startup script for Windows
+@rem  gradlew startup script for Windows
 @rem
 @rem ##########################################################################
 
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
+@rem Set local scope for the variables, and ensure extensions are enabled
+setlocal EnableExtensions
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
@@ -37,64 +43,40 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
-goto fail
+"%COMSPEC%" /c exit 1
 
 :findJavaFromJavaHome
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
-goto fail
-
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
+"%COMSPEC%" /c exit 1
 
 :execute
 @rem Setup the command line
 
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
 
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+@rem Execute gradlew
+@rem endlocal doesn't take effect until after the line is parsed and variables are expanded
+@rem which allows us to clear the local environment before executing the java command
+endlocal & "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %* & call :exitWithErrorLevel
 
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
+:exitWithErrorLevel
+@rem Use "%COMSPEC%" /c exit to allow operators to work properly in scripts
+"%COMSPEC%" /c exit %ERRORLEVEL%

repositories.gradle

@@ -1,18 +1,8 @@
-// Add any additional repositiroes for your dependencies here
+// Add any additional repositories for your dependencies here
 
 repositories {
-    mavenCentral()
     maven {
-        name 'GTNH Maven'
-        url 'http://jenkins.usrv.eu:8081/nexus/content/groups/public/'
-    }
-    maven {
-        url 'https://cursemaven.com'
-        content {
-            includeGroup 'curse.maven'
-        }
-    }
-    maven {
-        url 'https://jitpack.io'
+        name = "Modrinth"
+        url = "https://api.modrinth.com/maven"
     }
 }

settings.gradle

@@ -0,0 +1,26 @@
+
+pluginManagement {
+    repositories {
+        maven {
+            // RetroFuturaGradle
+            name "GTNH Maven"
+            url "https://nexus.gtnewhorizons.com/repository/public/"
+            mavenContent {
+                includeGroup("com.gtnewhorizons")
+                includeGroupByRegex("com\\.gtnewhorizons\\..+")
+            }
+        }
+        gradlePluginPortal()
+        mavenCentral()
+        mavenLocal()
+    }
+}
+
+plugins {
+    id 'com.gtnewhorizons.gtnhsettingsconvention' version '2.0.34'
+}
+
+
+
+rootProject.name = "NotEnoughItems"
+

src/main/antlr/SearchExpressionLexer.g4

@@ -0,0 +1,47 @@
+lexer grammar SearchExpressionLexer;
+
+// Antlr4 generates imports with .*
+@header {
+// CHECKSTYLE:OFF
+import codechicken.nei.SearchTokenParser;
+}
+
+@members {
+private SearchTokenParser searchParser;
+
+public SearchExpressionLexer(CharStream input, SearchTokenParser searchParser) {
+    this(input);
+    this.searchParser = searchParser;
+}
+}
+
+// Lexer rules
+REGEX_LEFT         : 'r'? '/' -> pushMode(REGEX) ;
+QUOTE_LEFT         : '"' -> pushMode(QUOTED) ;
+
+DASH               : '-' ;
+
+RECIPE_INGREDIENTS : '<&' | '<' ;
+RECIPE_RESULT      : '>&' | '>' ;
+RECIPE_OTHERS      : '^&' | '^' ;
+
+OR                 : '|' ;
+LEFT_BRACKET       : '{' ;
+RIGHT_BRACKET      : '}' ;
+NEWLINE_OR_TAB     : [\t\r\n] -> skip ;
+SPACE              : ' ' ;
+ESCAPED_SYMBOL     : '\\' . ;
+
+PREFIX             : CLEAN_SYMBOL {searchParser.hasRedefinedPrefix(getText().charAt(0))}? ;
+CLEAN_SYMBOL       : ~[-<>^{}|/\\ "] ;
+
+mode REGEX;
+
+REGEX_CONTENT     : (~[/] | '\\/')+ ;
+REGEX_RIGHT       : '/' -> popMode ;
+
+mode QUOTED;
+
+QUOTED_CONTENT    : (~["] | '\\"')+ ;
+QUOTE_RIGHT       : '"' -> popMode ;
+

src/main/antlr/SearchExpressionParser.g4

@@ -0,0 +1,73 @@
+parser grammar SearchExpressionParser;
+
+// Antlr4 generates imports with .*
+@header {
+// CHECKSTYLE:OFF
+}
+
+options { tokenVocab=SearchExpressionLexer; }
+
+// Parser rules
+
+// Should only be used for recipes. Thanks to antlr inability to properly
+// inherit grammars, this is included where it's not supposed to be
+recipeSearchExpression
+    : recipeClauseExpression*
+    ;
+
+recipeClauseExpression
+    : ingredientsPrefix=RECIPE_INGREDIENTS searchExpression[0, $ingredientsPrefix.getText().length() > 1]
+    | resultPrefix=RECIPE_RESULT searchExpression[1, $resultPrefix.getText().length() > 1]
+    | othersPrefix=RECIPE_OTHERS searchExpression[2, $othersPrefix.getText().length() > 1]
+    | searchExpression[3, false]
+    ;
+
+// General search expression rules
+searchExpression[int type, boolean allRecipe]
+    : orExpression
+    ;
+
+orExpression
+    : sequenceExpression (OR sequenceExpression)*
+    ;
+
+sequenceExpression
+    : (SPACE* unaryExpression SPACE*)+
+    ;
+
+unaryExpression
+    : LEFT_BRACKET orExpression RIGHT_BRACKET?
+    | prefixedExpression
+    | negateExpression
+    | token['\0']
+    ;
+
+negateExpression
+    : DASH unaryExpression
+    ;
+
+prefixedExpression
+    locals [
+        Character prefix
+    ]
+    : prefixToken=PREFIX { $prefix =  $prefixToken.getText().charAt(0); } token[$prefix]
+    ;
+
+token[Character prefix]
+    : regex[prefix]
+    | quoted[prefix]
+    | plainText
+    ;
+
+regex[Character prefix]
+    : REGEX_LEFT REGEX_CONTENT REGEX_RIGHT?
+    ;
+
+quoted[Character prefix]
+    : QUOTE_LEFT QUOTED_CONTENT QUOTE_RIGHT?
+    ;
+
+plainText
+    : (CLEAN_SYMBOL | ESCAPED_SYMBOL)+
+    ;
+

src/main/java/codechicken/nei/AbstractSubpanel.java

@@ -0,0 +1,151 @@
+package codechicken.nei;
+
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.item.ItemStack;
+
+import org.lwjgl.opengl.GL11;
+
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.ItemsGrid.ItemsGridSlot;
+import codechicken.nei.api.GuiInfo;
+import codechicken.nei.api.INEIGuiHandler;
+import codechicken.nei.api.ShortcutInputHandler;
+import codechicken.nei.drawable.DrawableBuilder;
+import codechicken.nei.drawable.DrawableResource;
+import codechicken.nei.guihook.IContainerTooltipHandler;
+import codechicken.nei.recipe.GuiRecipe;
+
+public abstract class AbstractSubpanel<T extends ItemsGrid<? extends ItemsGridSlot, ? extends ItemsGrid.MouseContext>>
+        extends Widget implements IContainerTooltipHandler {
+
+    final DrawableResource DASH = new DrawableBuilder("nei:textures/dash.png", 0, 0, 6, 1).setTextureSize(6, 1).build();
+
+    protected int mouseDownItemIndex = -1;
+    protected int splittingLineColor = 0xffffffff;
+    protected int linePaddingStart = 0;
+    protected T grid;
+
+    public boolean isEmpty() {
+        return this.grid.isEmpty();
+    }
+
+    public void draw(int mousex, int mousey) {
+        drawSplittingLine();
+        this.grid.draw(mousex, mousey);
+    }
+
+    public void update() {
+        this.grid.update();
+    }
+
+    public abstract int setPanelWidth(int width);
+
+    public void resize(GuiContainer gui) {
+        this.grid.setGridSize(x, y + 4, w, h - 8);
+        this.grid.refresh(gui);
+    }
+
+    @Override
+    public ItemStack getStackMouseOver(int mousex, int mousey) {
+        final ItemsGridSlot slot = getSlotMouseOver(mousex, mousey);
+        return slot == null ? null : slot.getItemStack();
+    }
+
+    public ItemsGridSlot getSlotMouseOver(int mousex, int mousey) {
+        return this.grid.getSlotMouseOver(mousex, mousey);
+    }
+
+    protected void updateLinePadding() {
+        final GuiContainer guiContainer = NEIClientUtils.getGuiContainer();
+        final INEIGuiHandler[] handlers = GuiInfo.getGuiHandlersSnapshot();
+        final Rectangle4i rect = new Rectangle4i(this.x, this.y - 1, 10, 2);
+        this.linePaddingStart = 0;
+
+        while (this.linePaddingStart < this.w && GuiInfo.hideItemPanelSlot(guiContainer, rect, handlers)) {
+            this.linePaddingStart += 10;
+            rect.x += 10;
+        }
+
+    }
+
+    protected void drawSplittingLine() {
+        float alpha = (this.splittingLineColor >> 24 & 255) / 255.0F;
+        float red = (this.splittingLineColor >> 16 & 255) / 255.0F;
+        float green = (this.splittingLineColor >> 8 & 255) / 255.0F;
+        float blue = (this.splittingLineColor & 255) / 255.0F;
+
+        int width = this.grid.columns * ItemsGrid.SLOT_SIZE - this.linePaddingStart;
+        int repeat = width / 6;
+        int shiftX = this.x + this.linePaddingStart + (this.w - width) / 2;
+
+        GL11.glColor4f(red, green, blue, alpha);
+        for (int i = 0; i < repeat; i++) {
+            DASH.draw(shiftX + i * 6, this.y);
+        }
+        GL11.glColor4f(1, 1, 1, 1);
+    }
+
+    @Override
+    public void mouseDragged(int mousex, int mousey, int button, long heldTime) {
+
+        if (this.mouseDownItemIndex >= 0 && ItemPanels.itemPanel.draggedStack == null
+                && NEIClientUtils.getHeldItem() == null
+                && NEIClientConfig.hasSMPCounterPart()) {
+
+            final ItemsGridSlot mouseOverSlot = getSlotMouseOver(mousex, mousey);
+
+            if (mouseOverSlot == null || mouseOverSlot.itemIndex != this.mouseDownItemIndex || heldTime > 500) {
+                ItemPanels.itemPanel.draggedStack = getDraggedStackWithQuantity(
+                        this.grid.getItem(this.mouseDownItemIndex));
+                this.mouseDownItemIndex = -1;
+            }
+        }
+
+    }
+
+    @Override
+    public boolean handleClick(int mousex, int mousey, int button) {
+        if (handleClickExt(mousex, mousey, button)) return true;
+
+        final ItemsGridSlot hoverSlot = this.grid.getSlotMouseOver(mousex, mousey);
+        if (hoverSlot != null) {
+
+            if (button == 2) {
+                ItemPanels.itemPanel.draggedStack = getDraggedStackWithQuantity(hoverSlot.getItemStack());
+            } else {
+                mouseDownItemIndex = hoverSlot.itemIndex;
+            }
+
+            return true;
+        }
+
+        return false;
+    }
+
+    protected abstract ItemStack getDraggedStackWithQuantity(ItemStack itemStack);
+
+    public ItemStack getStackMouseOverWithQuantity(int mousex, int mousey) {
+        final ItemStack hoverSlot = getStackMouseOver(mousex, mousey);
+        return hoverSlot != null ? getDraggedStackWithQuantity(hoverSlot) : null;
+    }
+
+    @Override
+    public void mouseUp(int mousex, int mousey, int button) {
+        final ItemsGridSlot hoverSlot = getSlotMouseOver(mousex, mousey);
+
+        if (hoverSlot != null && hoverSlot.itemIndex == this.mouseDownItemIndex
+                && ItemPanels.itemPanel.draggedStack == null) {
+
+            if (NEIController.manager.window instanceof GuiRecipe || NEIClientUtils.shiftKey()
+                    || !NEIClientConfig.canCheatItem(hoverSlot.getItemStack())) {
+                ShortcutInputHandler.handleMouseClick(hoverSlot.getItemStack().copy());
+            } else {
+                NEIClientUtils.cheatItem(getDraggedStackWithQuantity(hoverSlot.getItemStack()), button, -1);
+            }
+
+        }
+
+        this.mouseDownItemIndex = -1;
+    }
+
+}

src/main/java/codechicken/nei/AutoFocusWidget.java

@@ -0,0 +1,180 @@
+package codechicken.nei;
+
+import static codechicken.lib.gui.GuiDraw.getMousePosition;
+
+import java.awt.Point;
+import java.util.ArrayList;
+import java.util.List;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiTextField;
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.client.settings.GameSettings;
+import net.minecraft.util.ChatAllowedCharacters;
+
+import org.lwjgl.input.Keyboard;
+
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.guihook.IContainerInputHandler;
+
+public class AutoFocusWidget implements IContainerInputHandler {
+
+    /**
+     * Implement this interface on a GuiContainer to enable the autofocus search in NEI (if the autofocus option is
+     * enabled) without needing to add the classname to the config file .
+     */
+    public interface INEIAutoFocusSearchEnable {
+    }
+
+    public static AutoFocusWidget instance = new AutoFocusWidget();
+
+    public static List<String> enableAutoFocusPrefixes = new ArrayList<>();
+
+    protected boolean autofocus = false;
+    protected Point mouse;
+    protected Point pendingMouse;
+    protected GuiTextField textInputHolder;
+
+    public AutoFocusWidget() {
+        GuiContainerManager.addInputHandler(this);
+    }
+
+    public void load(GuiContainer gui) {
+        this.autofocus = LayoutManager.searchField.isVisible() && NEIClientConfig.searchWidgetAutofocus() != 0
+                && isAllowedGuiAutoSearchFocus(gui);
+        this.mouse = null;
+        this.pendingMouse = null;
+
+        if (this.autofocus) {
+            beginTextInput();
+        }
+    }
+
+    protected void beginTextInput() {
+        if (this.textInputHolder == null) {
+            this.textInputHolder = new GuiTextField(Minecraft.getMinecraft().fontRenderer, 0, 0, 0, 0);
+        }
+
+        this.textInputHolder.setFocused(true);
+    }
+
+    protected void endTextInput() {
+        if (this.textInputHolder != null) {
+            this.textInputHolder.setFocused(false);
+        }
+    }
+
+    public void guiTick() {
+        if (!this.autofocus) {
+            return;
+        }
+
+        final Point current = getMousePosition();
+
+        if (this.mouse == null) {
+            if (current.equals(this.pendingMouse)) {
+                this.mouse = current;
+            }
+
+            this.pendingMouse = current;
+        } else if (!this.mouse.equals(current)) {
+            cancel();
+        }
+    }
+
+    protected void cancel() {
+        if (this.autofocus) {
+            this.autofocus = false;
+            endTextInput();
+        }
+    }
+
+    @Override
+    public boolean keyTyped(GuiContainer gui, char keyChar, int keyCode) {
+
+        if (this.autofocus) {
+
+            if (NEIClientConfig.searchWidgetAutofocus() == 2
+                    && GameSettings.isKeyDown(Minecraft.getMinecraft().gameSettings.keyBindInventory)) {
+                cancel();
+                return false;
+            }
+
+            if (keyCode == Keyboard.KEY_RETURN || keyCode == Keyboard.KEY_NUMPADENTER
+                    || keyCode == Keyboard.KEY_ESCAPE) {
+                cancel();
+                return false;
+            }
+
+            if (!ChatAllowedCharacters.isAllowedCharacter(keyChar)) {
+                return false;
+            }
+
+            this.autofocus = false;
+
+            LayoutManager.searchField.setFocus(true);
+            endTextInput();
+
+            final String oldText = LayoutManager.searchField.text();
+            LayoutManager.searchField.handleKeyPress(keyCode, keyChar);
+
+            return !LayoutManager.searchField.text().equals(oldText);
+        }
+
+        return false;
+    }
+
+    @Override
+    public boolean lastKeyTyped(GuiContainer gui, char keyChar, int keyID) {
+        return false;
+    }
+
+    @Override
+    public boolean mouseClicked(GuiContainer gui, int mousex, int mousey, int button) {
+        cancel();
+        return false;
+    }
+
+    @Override
+    public boolean mouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
+        cancel();
+        return false;
+    }
+
+    @Override
+    public void onKeyTyped(GuiContainer gui, char keyChar, int keyID) {}
+
+    @Override
+    public void onMouseClicked(GuiContainer gui, int mousex, int mousey, int button) {
+        cancel();
+    }
+
+    @Override
+    public void onMouseDragged(GuiContainer gui, int mousex, int mousey, int button, long heldTime) {
+        cancel();
+    }
+
+    @Override
+    public void onMouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
+        cancel();
+    }
+
+    @Override
+    public void onMouseUp(GuiContainer gui, int mousex, int mousey, int button) {
+        cancel();
+    }
+
+    protected boolean isAllowedGuiAutoSearchFocus(GuiContainer gui) {
+        if (gui instanceof INEIAutoFocusSearchEnable) {
+            return true;
+        }
+        String guiClassName = gui.getClass().getName();
+        for (String prefix : enableAutoFocusPrefixes) {
+            if (guiClassName.startsWith(prefix)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+}

src/main/java/codechicken/nei/BookmarkContainerInfo.java

@@ -0,0 +1,34 @@
+package codechicken.nei;
+
+import java.util.HashMap;
+
+import net.minecraft.client.gui.inventory.GuiChest;
+import net.minecraft.client.gui.inventory.GuiContainer;
+
+import codechicken.nei.api.API;
+import codechicken.nei.api.IBookmarkContainerHandler;
+
+public class BookmarkContainerInfo {
+
+    private static final HashMap<Class<? extends GuiContainer>, IBookmarkContainerHandler> handlerMap = new HashMap<>();
+
+    public static void registerBookmarkContainerHandler(Class<? extends GuiContainer> classz,
+            IBookmarkContainerHandler handler) {
+        handlerMap.put(classz, handler);
+    }
+
+    public static boolean hasBookmarkContainerHandler(Class<? extends GuiContainer> classz) {
+        return handlerMap.containsKey(classz);
+    }
+
+    public static IBookmarkContainerHandler getBookmarkContainerHandler(GuiContainer gui) {
+        if (gui != null) {
+            return handlerMap.get(gui.getClass());
+        }
+        return null;
+    }
+
+    public static void load() {
+        API.registerBookmarkContainerHandler(GuiChest.class, new DefaultBookmarkContainerHandler());
+    }
+}

src/main/java/codechicken/nei/Button.java

@@ -1,11 +1,11 @@
 package codechicken.nei;
 
-import java.util.List;
-
 import static codechicken.lib.gui.GuiDraw.getStringWidth;
 
-public abstract class Button extends Widget
-{
+import java.util.List;
+
+public abstract class Button extends Widget {
+
     public Button(String s) {
         label = s;
     }
@@ -15,7 +15,7 @@ public abstract class Button extends Widget
     }
 
     public int contentWidth() {
-        return getRenderIcon() == null ? getStringWidth(label) : getRenderIcon().width;
+        return getRenderIcon() == null ? getStringWidth(getRenderLabel()) : getRenderIcon().width;
     }
 
     @Override
@@ -25,9 +25,7 @@ public abstract class Button extends Widget
 
     @Override
     public boolean handleClick(int mx, int my, int button) {
-        if (button == 1 || button == 0)
-            if (onButtonPress(button == 1))
-                NEIClientUtils.playClickSound();
+        if (button == 1 || button == 0) if (onButtonPress(button == 1)) NEIClientUtils.playClickSound();
         return true;
     }
 
@@ -39,36 +37,35 @@ public abstract class Button extends Widget
 
     @Override
     public List<String> handleTooltip(int mx, int my, List<String> tooltip) {
-        if (!contains(mx, my))
-            return tooltip;
+        if (!contains(mx, my)) return tooltip;
 
         final String tip = getButtonTip();
-        if (tip != null)
-            tooltip.add(tip);
-        
+        if (tip != null) tooltip.add(tip);
+
         addTooltips(tooltip);
-        
+
         return tooltip;
     }
 
     public String getButtonTip() {
         return null;
     }
-    
-    public void addTooltips(List<String> tooltip) {} 
+
+    public void addTooltips(List<String> tooltip) {}
 
     public String getRenderLabel() {
         return label;
     }
 
+    public int getRenderLabelColor() {
+        return 0;
+    }
+
     public final String label;
     public Image icon;
 
     /**
-     * 0x4 = state flag, as opposed to 1 click
-     * 0 = normal
-     * 1 = on
-     * 2 = disabled
+     * 0x4 = state flag, as opposed to 1 click 0 = normal 1 = on 2 = disabled
      */
     public int state;
 }

src/main/java/codechicken/nei/ButtonCycled.java

@@ -1,20 +1,21 @@
 package codechicken.nei;
 
-public abstract class ButtonCycled extends Button
-{    
+public abstract class ButtonCycled extends Button {
+
     public ButtonCycled() {}
 
     public ButtonCycled(int num) {
         icons = new Image[num];
         init();
     }
+
     @Override
-    public Image getRenderIcon()
-    {
+    public Image getRenderIcon() {
         return icons[index];
     }
 
     public void init() {}
+
     public int index;
     public Image[] icons;
 }

src/main/java/codechicken/nei/ClientHandler.java

@@ -1,85 +1,95 @@
 package codechicken.nei;
 
-import codechicken.core.ClientUtils;
-import codechicken.core.GuiModListScroll;
-import codechicken.lib.packet.PacketCustom;
-import codechicken.nei.api.API;
-import codechicken.nei.api.ItemInfo;
-import codechicken.nei.recipe.GuiRecipeTab;
-import codechicken.nei.recipe.StackInfo;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.function.Consumer;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
-import com.google.common.collect.Lists;
-import cpw.mods.fml.client.CustomModLoadingErrorDisplayException;
-import cpw.mods.fml.common.FMLCommonHandler;
-import cpw.mods.fml.common.Loader;
-import cpw.mods.fml.common.eventhandler.SubscribeEvent;
-import cpw.mods.fml.common.gameevent.TickEvent;
-import cpw.mods.fml.common.gameevent.TickEvent.Phase;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.EntityPlayerSP;
 import net.minecraft.client.gui.FontRenderer;
 import net.minecraft.client.gui.GuiErrorScreen;
-import net.minecraft.client.gui.GuiMainMenu;
 import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.client.gui.GuiSelectWorld;
+import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.client.multiplayer.WorldClient;
+import net.minecraft.client.resources.IResource;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.item.EntityItem;
+import net.minecraft.launchwrapper.Launch;
+import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
+import net.minecraftforge.client.event.GuiOpenEvent;
 import net.minecraftforge.client.event.RenderWorldLastEvent;
 import net.minecraftforge.common.MinecraftForge;
-import org.apache.commons.csv.CSVFormat;
-import org.apache.commons.csv.CSVParser;
-import org.apache.commons.csv.CSVRecord;
+import net.minecraftforge.event.world.WorldEvent;
+
+import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.IOUtils;
 
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileReader;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.regex.Pattern;
-import java.util.stream.Collectors;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+
+import codechicken.core.ClassDiscoverer;
+import codechicken.core.ClientUtils;
+import codechicken.lib.packet.PacketCustom;
+import codechicken.nei.api.API;
+import codechicken.nei.api.GuiInfo;
+import codechicken.nei.api.IConfigureNEI;
+import codechicken.nei.api.ItemInfo;
+import codechicken.nei.bookmark.tree.GuiCraftingTree;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.recipe.GuiCraftingRecipe;
+import codechicken.nei.recipe.GuiUsageRecipe;
+import codechicken.nei.recipe.IRecipeHandler;
+import codechicken.nei.recipe.RecipeHandlerRef;
+import codechicken.nei.recipe.RecipeItemInputHandler;
+import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.recipe.debug.DebugHandlerWidget;
+import cpw.mods.fml.client.CustomModLoadingErrorDisplayException;
+import cpw.mods.fml.common.FMLCommonHandler;
+import cpw.mods.fml.common.Loader;
+import cpw.mods.fml.common.ModClassLoader;
+import cpw.mods.fml.common.discovery.ASMDataTable;
+import cpw.mods.fml.common.eventhandler.SubscribeEvent;
+import cpw.mods.fml.common.gameevent.TickEvent;
+import cpw.mods.fml.common.gameevent.TickEvent.Phase;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
+public class ClientHandler {
 
-public class ClientHandler
-{
-    private static String[] defaultSerialHandlers = {
-        "WayofTime.alchemicalWizardry.client.nei.NEIAlchemyRecipeHandler"
-    };
-    private static String[] defaultHeightHackHandlerRegex = {
-            "buildcraft.compat.nei.*",
-            "cofh.thermalexpansion.plugins.nei.handlers.*",
-            "crazypants.enderio.nei.*",
-            "forestry.factory.recipes.nei.*",
-            "ic2.neiIntegration.core.recipehandler.*",
-            "mariculture.plugins.nei.*",
-            "redgear.brewcraft.plugins.nei.*",
-            "tconstruct.plugins.nei.*",
-            "WayofTime.alchemicalWizardry.client.nei.*",
-    };
-    private static String[] defaultHandlerOrdering = {
-            "# Each line in this file should either be a comment (starts with '#') or an ordering.",
-            "# Ordering lines are <handler ID>,<ordering number>.",
-            "# Handlers will be sorted in order of number ascending, so smaller numbers first.",
-            "# Any handlers that are missing from this file will be assigned to 0.",
-            "# Negative numbers are fine.",
-            "# If you delete this file, it will be regenerated with all registered handler IDs.",
-    };
     private static ClientHandler instance;
-
-    private ArrayList<EntityItem> SMPmagneticItems = new ArrayList<>();
+    private final ArrayList<EntityItem> SMPmagneticItems = new ArrayList<>();
+    private static final String HANDLER_ORDERING = "handlerordering.csv";
+    public static final List<String> DEFAULT_CONFIGS = ImmutableList.of(
+            "serialhandlers.cfg",
+            "heighthackhandlers.cfg",
+            "hiddenhandlers.cfg",
+            "enableautofocus.cfg",
+            "guicraftablesblacklist.cfg",
+            "defaultbookmarkcontainers.cfg",
+            "hiddenitems.cfg",
+            "guidfilters.cfg",
+            "informationpages.cfg",
+            "collapsibleitems.cfg",
+            "recipeidblacklist.cfg",
+            "handlers.csv",
+            "catalysts.csv",
+            HANDLER_ORDERING);
     private World lastworld;
-    private GuiScreen lastGui;
 
     public void addSMPMagneticItem(int i, World world) {
         WorldClient cworld = (WorldClient) world;
@@ -104,9 +114,11 @@ public class ClientHandler
         if (world.isRemote) {
             items = SMPmagneticItems;
         } else {
-            items = world.getEntitiesWithinAABB(EntityItem.class, player.boundingBox.expand(distancexz, distancey, distancexz));
+            items = world.getEntitiesWithinAABB(
+                    EntityItem.class,
+                    player.boundingBox.expand(distancexz, distancey, distancexz));
         }
-        for (Iterator<EntityItem> iterator = items.iterator(); iterator.hasNext(); ) {
+        for (Iterator<EntityItem> iterator = items.iterator(); iterator.hasNext();) {
             EntityItem item = iterator.next();
 
             if (item.delayBeforeCanPickup > 0) continue;
@@ -160,60 +172,144 @@ public class ClientHandler
 
     public static void preInit() {
         loadSerialHandlers();
+        loadHiddenItems();
         loadHeightHackHandlers();
+        loadHiddenHandlers();
+        loadEnableAutoFocus();
+        loadGuiCraftablesBlacklist();
+        loadDefaultBookmarkContainers();
         ItemInfo.preInit();
         StackInfo.loadGuidFilters();
     }
-    
-    public static void loadSerialHandlers() {
-        File file = NEIClientConfig.serialHandlersFile;
-        if(!file.exists()) {
-            try(FileWriter writer = new FileWriter(file)) {
-                NEIClientConfig.logger.info("Creating default serial handlers list {}", file);
-                Collection<String> toSave = Loader.isModLoaded("dreamcraft") ? Collections.singletonList("") : Arrays.asList(defaultSerialHandlers);
-                IOUtils.writeLines(toSave, "\n", writer);
-            } catch (IOException e) {
-                NEIClientConfig.logger.error("Failed to save default serial handlers list to file {}", file, e);
-            }
+
+    private static URL getDefaultResource(String resource) {
+        final String folder = resource.substring(resource.lastIndexOf(".") + 1);
+        return ClientHandler.class.getResource("/assets/nei/" + folder + "/" + resource);
+    }
+
+    public static boolean exportDefaultConfig(String resource) {
+        final File file = new File(NEIClientConfig.configDir, resource);
+        if (file.exists() && !NEIClientUtils.backupFile(file)) return false;
+
+        if (HANDLER_ORDERING.equals(resource)) {
+            return writeDefaultHandlerOrdering();
         }
-        try (FileReader reader = new FileReader(file)) {
-            NEIClientConfig.logger.info("Loading serial handlers from file {}", file);
-            NEIClientConfig.serialHandlers = new HashSet<>(IOUtils.readLines(reader));
+
+        final URL url = getDefaultResource(resource);
+        if (url == null) return false;
+
+        try {
+            FileUtils.copyURLToFile(url, file);
+            NEIClientConfig.logger.info("Exported default '{}' to {}", resource, file);
+            return true;
         } catch (IOException e) {
-            NEIClientConfig.logger.error("Failed to load serial handlers from file {}", file, e);
+            NEIClientConfig.logger.error("Failed to export default '{}' to file {}", resource, file, e);
+            return false;
         }
     }
 
-    public static void loadHeightHackHandlers() {
-        File file = NEIClientConfig.heightHackHandlersFile;
-        if (!file.exists()) {
-            try (FileWriter writer = new FileWriter(file)) {
-                NEIClientConfig.logger.info("Creating default height hack handlers list {}", file);
-                Collection<String> toSave = Arrays.asList(defaultHeightHackHandlerRegex);
-                IOUtils.writeLines(toSave, "\n", writer);
-            } catch (IOException e) {
-                NEIClientConfig.logger.error("Failed to save default height hack handlers list to file {}", file, e);
+    public static boolean loadSettingsResource(String resource, Consumer<Stream<String>> callback) {
+        final ResourceLocation location = new ResourceLocation("nei", resource);
+
+        try {
+            final IResource res = Minecraft.getMinecraft().getResourceManager().getResource(location);
+
+            try (BufferedReader reader = new BufferedReader(
+                    new InputStreamReader(res.getInputStream(), StandardCharsets.UTF_8))) {
+                NEIClientConfig.logger.info("Loading '{}' from jar {}", resource, location);
+                callback.accept(
+                        IOUtils.readLines(reader).stream()
+                                .map(line -> line.contains("#") ? line.substring(0, line.indexOf('#')) : line)
+                                .map(String::trim).filter(line -> !line.isEmpty()));
+                return true;
             }
+
+        } catch (Exception io) {
+            NEIClientConfig.logger.error("Failed to load '{}' file {}", resource, location);
         }
 
-        try (FileReader reader = new FileReader(file)) {
-            NEIClientConfig.logger.info("Loading height hack handlers from file {}", file);
-            NEIClientConfig.heightHackHandlerRegex =
-                    IOUtils.readLines(reader).stream()
-                            .map(Pattern::compile)
-                            .collect(Collectors.toCollection(HashSet::new));
+        return false;
+    }
+
+    public static boolean loadSettingsFile(String resource, Consumer<Stream<String>> callback) {
+        final File file = new File(NEIClientConfig.configDir, resource);
+        final boolean fromJar = !file.exists();
+
+        try {
+            final URL url = fromJar ? getDefaultResource(resource) : file.toURI().toURL();
+            if (url == null) return false;
+
+            try (InputStreamReader reader = new InputStreamReader(url.openStream(), StandardCharsets.UTF_8)) {
+                NEIClientConfig.logger.info("Loading '{}' from {}", resource, fromJar ? "JAR" : file);
+                callback.accept(
+                        IOUtils.readLines(reader).stream()
+                                .map(line -> line.contains("#") ? line.substring(0, line.indexOf('#')) : line)
+                                .map(String::trim).filter(line -> !line.isEmpty()));
+                return true;
+            }
         } catch (IOException e) {
-            NEIClientConfig.logger.error("Failed to load height hack handlers from file {}", file, e);
+            NEIClientConfig.logger.error("Failed to load '{}' file {}", resource, file, e);
         }
+
+        return false;
+    }
+
+    public static void loadSerialHandlers() {
+        loadSettingsFile(
+                "serialhandlers.cfg",
+                lines -> NEIClientConfig.serialHandlers = lines.collect(Collectors.toCollection(HashSet::new)));
+    }
+
+    public static void loadHeightHackHandlers() {
+        loadSettingsFile(
+                "heighthackhandlers.cfg",
+                lines -> NEIClientConfig.heightHackHandlerRegex = lines.map(Pattern::compile)
+                        .collect(Collectors.toCollection(HashSet::new)));
+    }
+
+    public static void loadHiddenHandlers() {
+        loadSettingsFile(
+                "hiddenhandlers.cfg",
+                lines -> NEIClientConfig.hiddenHandlers = lines.collect(Collectors.toCollection(HashSet::new)));
+    }
+
+    public static void loadEnableAutoFocus() {
+        loadSettingsFile(
+                "enableautofocus.cfg",
+                lines -> AutoFocusWidget.enableAutoFocusPrefixes = lines.collect(Collectors.toList()));
+    }
+
+    public static void loadGuiCraftablesBlacklist() {
+        loadSettingsFile(
+                "guicraftablesblacklist.cfg",
+                lines -> ItemCraftablesPanel.guiBlacklist = lines.collect(Collectors.toList()));
+    }
+
+    public static void loadDefaultBookmarkContainers() {
+        loadSettingsFile("defaultbookmarkcontainers.cfg", lines -> {
+            for (String clazz : lines.collect(Collectors.toList())) {
+                try {
+                    API.registerBookmarkContainerHandler(
+                            (Class<? extends GuiContainer>) Class.forName(clazz),
+                            new DefaultBookmarkContainerHandler());
+                } catch (Exception e) {
+                    NEIClientConfig.logger.error("Failed to load class '{}' for defaultbookmarkcontainers.cfg", clazz);
+                }
+            }
+        });
+    }
+
+    public static void loadHiddenItems() {
+        loadSettingsFile("hiddenitems.cfg", lines -> lines.forEach(API::hideItem));
     }
 
     public static void load() {
         instance = new ClientHandler();
 
-        GuiModListScroll.register("NotEnoughItems");
         PacketCustom.assignHandler(NEICPH.channel, new NEICPH());
         FMLCommonHandler.instance().bus().register(instance);
         MinecraftForge.EVENT_BUS.register(instance);
+        MinecraftForge.EVENT_BUS.register(new GuiCraftingTree.EventHandler());
 
         API.registerHighlightHandler(new DefaultHighlightHandler(), ItemInfo.Layout.HEADER);
         HUDRenderer.load();
@@ -221,115 +317,157 @@ public class ClientHandler
     }
 
     public static void postInit() {
-        loadHandlerOrdering();
+        GuiContainerManager.registerReloadResourceListener();
     }
 
     public static void loadHandlerOrdering() {
-        File file = NEIClientConfig.handlerOrderingFile;
-        if (!file.exists()) {
-            try (FileWriter writer = new FileWriter(file)) {
-                NEIClientConfig.logger.info("Creating default handler ordering CSV {}", file);
+        loadSettingsFile(
+                HANDLER_ORDERING,
+                lines -> lines.map(line -> line.split(",")).filter(parts -> parts.length == 2).forEach(parts -> {
+                    String handlerId = parts[0];
+                    int ordering = Integer.parseInt(parts[1]);
+                    NEIClientConfig.handlerOrdering.put(handlerId, ordering);
+                }));
+    }
 
-                List<String> toWrite = Lists.newArrayList(defaultHandlerOrdering);
-                GuiRecipeTab.handlerMap.keySet().stream()
-                        .sorted()
-                        .forEach(handlerId -> toWrite.add(String.format("%s,0", handlerId)));
+    private static boolean writeDefaultHandlerOrdering() {
+        final File file = new File(NEIClientConfig.configDir, HANDLER_ORDERING);
+        final List<String> lines = Lists.newArrayList(
+                "# Each line in this file should either be a comment (starts with '#') or an ordering.",
+                "# Ordering lines are <handler ID>,<ordering number>.",
+                "# Handlers will be sorted in order of number ascending, so smaller numbers first.",
+                "# Any handlers that are missing from this file keep their own order, 0 for most of them.",
+                "# Negative numbers are fine.");
+        final Map<String, Integer> orders = new TreeMap<>();
+        final List<IRecipeHandler> handlers = new ArrayList<>();
+        handlers.addAll(GuiCraftingRecipe.craftinghandlers);
+        handlers.addAll(GuiCraftingRecipe.serialCraftingHandlers);
+        handlers.addAll(GuiUsageRecipe.usagehandlers);
+        handlers.addAll(GuiUsageRecipe.serialUsageHandlers);
 
-                IOUtils.writeLines(toWrite, "\n", writer);
-            } catch (IOException e) {
-                NEIClientConfig.logger.error("Failed to save default handler ordering to file {}", file, e);
-            }
+        for (IRecipeHandler handler : handlers) {
+            orders.putIfAbsent(
+                    NEIClientConfig.HANDLER_ID_FUNCTION.apply(handler),
+                    NEIClientConfig.getHandlerOrder(handler));
         }
 
-        URL url;
+        orders.forEach((handlerId, order) -> lines.add(handlerId + "," + order));
+
         try {
-            url = file.toURI().toURL();
-        } catch (MalformedURLException e) {
-            NEIClientConfig.logger.info("Invalid URL for handler ordering CSV.");
-            e.printStackTrace();
-            return;
+            NEIClientConfig.logger.info("Creating default '{}' {}", HANDLER_ORDERING, file);
+            FileUtils.writeLines(file, StandardCharsets.UTF_8.name(), lines, "\n");
+            return true;
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to save default '{}' to file {}", HANDLER_ORDERING, file, e);
+            return false;
         }
+    }
 
-        try (BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream()))) {
-            NEIClientConfig.logger.info("Loading handler ordering from file {}", file);
-            CSVParser csvParser = CSVFormat.EXCEL.withCommentMarker('#').parse(reader);
-            for (CSVRecord record : csvParser) {
-                final String handlerId = record.get(0);
+    public static void loadPluginsList() {
+        final boolean jarjar = Launch.blackboard.getOrDefault("jarjar.rfbPluginLoaded", Boolean.FALSE) == Boolean.TRUE;
+        if (!jarjar) {
+            // Do the old style class discovery
+            final ClassDiscoverer classDiscoverer = new ClassDiscoverer(
+                    test -> test.startsWith("NEI") && test.endsWith("Config.class"),
+                    IConfigureNEI.class);
 
-                int ordering;
+            NEIClientConfig.pluginsList.addAll(classDiscoverer.findClasses());
+            NEIClientConfig.logger
+                    .info("Loading NEI Plugins via ClassDiscoverer: " + NEIClientConfig.pluginsList.size());
+
+        } else {
+            // If JarJar's loaded, the ASMDataTable now includes interfaces in addition to Annotations, so use that
+            // instead Includes a small change in behavior of no longer requiring the class to start with NEI and end
+            // with Config; This could easily be changed if desired, but the previous behavior was likely to speed
+            // things up by limiting the scope when looking at all of the jars and classes in the classpath.
+            final ASMDataTable dataTable = NEIModContainer.getAsmDataTable();
+            final ModClassLoader modClassLoader = (ModClassLoader) Loader.instance().getModClassLoader();
+            for (ASMDataTable.ASMData asmData : dataTable.getAll(IConfigureNEI.class.getName().replace('.', '/'))) {
+                final String className = asmData.getClassName().replace('/', '.');
                 try {
-                    ordering = Integer.parseInt(record.get(1));
-                } catch (NumberFormatException e) {
-                    NEIClientConfig.logger.error("Error parsing CSV record {}: {}", record, e);
-                    continue;
+                    NEIClientConfig.pluginsList.add(Class.forName(className, true, modClassLoader));
+                } catch (ClassNotFoundException e) {
+                    NEIClientConfig.logger.error("Failed to load plugin class {}", className, e);
                 }
-
-                NEIClientConfig.handlerOrdering.put(handlerId, ordering);
             }
-        } catch (Exception e) {
-            NEIClientConfig.logger.info("Error parsing CSV");
-            e.printStackTrace();
+            NEIClientConfig.logger.info("Loading NEI Plugins via JarJar: " + NEIClientConfig.pluginsList.size());
         }
     }
 
     @SubscribeEvent
     public void tickEvent(TickEvent.ClientTickEvent event) {
-        if(event.phase == Phase.END)
-            return;
+        if (event.phase == Phase.END) return;
 
         Minecraft mc = Minecraft.getMinecraft();
-        if(mc.theWorld != null) {
+        if (mc.theWorld != null) {
             loadWorld(mc.theWorld, false);
 
-            if (!NEIClientConfig.isEnabled())
-                return;
+            if (!NEIClientConfig.isEnabled()) return;
 
-            KeyManager.tickKeyStates();
+            /*
+             * NEI plugins are loaded in a separate thread. Make sure loading them has finished otherwise a CME might
+             * occur in KeyManager if a plugin calls API.addKeyBind() during initialization.
+             */
+            if (NEIClientConfig.isLoaded()) KeyManager.tickKeyStates();
 
             NEIController.updateUnlimitedItems(mc.thePlayer.inventory);
-            if (mc.currentScreen == null)
-                NEIController.processCreativeCycling(mc.thePlayer.inventory);
+            if (mc.currentScreen == null) NEIController.processCreativeCycling(mc.thePlayer.inventory);
 
             updateMagnetMode(mc.theWorld, mc.thePlayer);
+        } else {
+            lastworld = null;
         }
+    }
 
-        GuiScreen gui = mc.currentScreen;
-        if (gui != lastGui) {
-            if (gui instanceof GuiMainMenu)
-                lastworld = null;
-            else if (gui instanceof GuiSelectWorld)
-                NEIClientConfig.reloadSaves();
+    @SubscribeEvent
+    public void onGuiScreen(GuiOpenEvent event) {
+        if (event.gui instanceof GuiSelectWorld) {
+            NEIClientConfig.reloadSaves();
+        } else if (event.gui == null) {
+            /* prevent WorldClient reference being held in the Gui */
+            NEIController.manager = null;
+            GuiInfo.clearGuiHandlers();
         }
-        lastGui = gui;
     }
 
     @SubscribeEvent
     public void tickEvent(TickEvent.RenderTickEvent event) {
-        if(event.phase == Phase.END && NEIClientConfig.isEnabled())
-            HUDRenderer.renderOverlay();
+        if (event.phase == Phase.END && NEIClientConfig.isEnabled()) HUDRenderer.renderOverlay();
     }
 
-
     @SubscribeEvent
     public void renderLastEvent(RenderWorldLastEvent event) {
-        if (NEIClientConfig.isEnabled())
-            WorldOverlayRenderer.render(event.partialTicks);
+        if (NEIClientConfig.isEnabled()) WorldOverlayRenderer.render(event.partialTicks);
     }
 
+    @SideOnly(Side.CLIENT)
+    @SubscribeEvent
+    public void onWorldUnload(WorldEvent.Unload event) {
+        Minecraft mc = Minecraft.getMinecraft();
+        if (event.world == mc.theWorld) {
+            NEIClientConfig.unloadWorld();
+            ItemMobSpawner.clearEntityReferences();
+            RecipeItemInputHandler.instance.clearTooltipCache();
+            RecipeHandlerRef.clearCache();
+            ItemPanels.itemPanel.craftablesPanel.clearGuiReferences();
+            DebugHandlerWidget.instance.clearGuiReferences();
+            NEIController.manager = null;
+        }
+    }
 
     public void loadWorld(World world, boolean fromServer) {
         if (world != lastworld) {
             SMPmagneticItems.clear();
-            WorldOverlayRenderer.reset();
-
+            if (!NEIClientConfig.getBooleanSetting("world.overlays.lock")) {
+                WorldOverlayRenderer.reset();
+            }
             if (!fromServer) {
                 NEIClientConfig.setHasSMPCounterPart(false);
                 NEIClientConfig.setInternalEnabled(false);
 
-                if (!Minecraft.getMinecraft().isSingleplayer())//wait for server to initiate in singleplayer
+                if (!Minecraft.getMinecraft().isSingleplayer()) // wait for server to initiate in singleplayer
                     NEIClientConfig.loadWorld("remote/" + ClientUtils.getServerIP().replace(':', '~'));
             }
-
             lastworld = world;
         }
     }
@@ -339,8 +477,8 @@ public class ClientHandler
     }
 
     public static RuntimeException throwCME(final String message) {
-        final GuiScreen errorGui = new GuiErrorScreen(null, null)
-        {
+        final GuiScreen errorGui = new GuiErrorScreen(null, null) {
+
             @Override
             public void handleMouseInput() {}
 
@@ -356,16 +494,18 @@ public class ClientHandler
             }
         };
 
-        @SuppressWarnings("serial")
-        CustomModLoadingErrorDisplayException e = new CustomModLoadingErrorDisplayException()
-        {
+        CustomModLoadingErrorDisplayException e = new CustomModLoadingErrorDisplayException() {
+
+            private static final long serialVersionUID = -5593387489666663375L;
+
             @Override
             public void initGui(GuiErrorScreen errorScreen, FontRenderer fontRenderer) {
                 Minecraft.getMinecraft().displayGuiScreen(errorGui);
             }
 
             @Override
-            public void drawScreen(GuiErrorScreen errorScreen, FontRenderer fontRenderer, int mouseRelX, int mouseRelY, float tickTime) {}
+            public void drawScreen(GuiErrorScreen errorScreen, FontRenderer fontRenderer, int mouseRelX, int mouseRelY,
+                    float tickTime) {}
         };
         throw e;
     }

src/main/java/codechicken/nei/CollapsibleItems.java

@@ -0,0 +1,316 @@
+package codechicken.nei;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.function.Supplier;
+import java.util.stream.Collectors;
+
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTBase;
+import net.minecraft.nbt.NBTBase.NBTPrimitive;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.StatCollector;
+
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.JsonSyntaxException;
+
+import codechicken.nei.ItemList.AnyMultiItemFilter;
+import codechicken.nei.ItemList.EverythingItemFilter;
+import codechicken.nei.ItemList.NothingItemFilter;
+import codechicken.nei.PresetsList.Preset;
+import codechicken.nei.PresetsList.PresetMode;
+import codechicken.nei.api.ItemFilter;
+import codechicken.nei.util.ItemStackFilterParser;
+
+public class CollapsibleItems {
+
+    protected static class GroupItem {
+
+        public String guid;
+        public ItemFilter filter;
+        public boolean expanded = false;
+        public String displayName = "";
+        public String unlocalizedName;
+
+        public void setFilter(String filter) {
+            this.filter = ItemStackFilterParser.parse(filter.trim());
+            this.guid = this.filter != null ? UUID.nameUUIDFromBytes(filter.getBytes()).toString() : "";
+        }
+
+        public void setFilter(ItemFilter filter, String guid) {
+            this.filter = filter;
+            this.guid = guid;
+        }
+
+        public String getDisplayName() {
+            if (this.unlocalizedName != null && !this.unlocalizedName.isEmpty()) {
+                final String translated = StatCollector.translateToLocal(this.unlocalizedName);
+
+                if (!translated.equals(this.unlocalizedName)) {
+                    return translated;
+                }
+            }
+
+            return this.displayName;
+        }
+
+        public boolean matches(ItemStack stack) {
+            return this.filter.matches(stack);
+        }
+    }
+
+    public static class ApiGroup {
+
+        private String unlocalizedName;
+
+        public ApiGroup setName(String unlocalizedName) {
+            this.unlocalizedName = unlocalizedName;
+            return this;
+        }
+    }
+
+    private static final String STATE_KEY = "collapsibleitems";
+
+    protected static File statesFile;
+    protected static final List<GroupItem> groups = new ArrayList<>();
+    protected static final List<Supplier<GroupItem>> apiGroups = new CopyOnWriteArrayList<>();
+    protected static final Map<ItemStack, Integer> cache = new ConcurrentHashMap<>();
+
+    private CollapsibleItems() {}
+
+    public static void load() {
+        CollapsibleItems.groups.clear();
+        CollapsibleItems.cache.clear();
+
+        for (int i = PresetsList.presets.size() - 1; i >= 0; i--) {
+            Preset preset = PresetsList.presets.get(i);
+            if (preset.enabled && preset.mode == PresetMode.GROUP) {
+                GroupItem group = new GroupItem();
+                group.setFilter(preset, UUID.nameUUIDFromBytes(preset.items.toString().getBytes()).toString());
+                group.displayName = preset.name;
+                addGroup(group);
+            }
+        }
+
+        if (NEIClientConfig.enableCollapsibleItems()) {
+            ClientHandler.loadSettingsFile(
+                    "collapsibleitems.cfg",
+                    lines -> parseFile(lines.collect(Collectors.toCollection(ArrayList::new))));
+
+            for (Supplier<GroupItem> apiGroup : CollapsibleItems.apiGroups) {
+                try {
+                    addGroup(apiGroup.get());
+                } catch (Exception e) {
+                    NEIClientConfig.logger.error("Failed to add API group", e);
+                }
+            }
+        }
+
+        loadStates();
+    }
+
+    public static ApiGroup registerGroup(String filter) {
+        final ApiGroup apiGroup = new ApiGroup();
+
+        CollapsibleItems.apiGroups.add(() -> {
+            GroupItem group = new GroupItem();
+            group.setFilter(filter);
+            group.unlocalizedName = apiGroup.unlocalizedName;
+            return group;
+        });
+
+        return apiGroup;
+    }
+
+    public static ApiGroup registerGroup(Iterable<ItemStack> items) {
+        final ApiGroup apiGroup = new ApiGroup();
+        final ItemStackSet filter = new ItemStackSet();
+
+        for (ItemStack stack : items) {
+            if (stack != null) filter.add(stack.copy());
+        }
+
+        if (filter.isEmpty()) return apiGroup;
+
+        final String key = filter.keys().stream()
+                .map(stack -> Item.itemRegistry.getNameForObject(stack.getItem()) + ":" + stack.getItemDamage())
+                .sorted().collect(Collectors.joining(","));
+        final String guid = UUID.nameUUIDFromBytes(key.getBytes()).toString();
+
+        CollapsibleItems.apiGroups.add(() -> {
+            GroupItem group = new GroupItem();
+            group.setFilter(filter, guid);
+            group.unlocalizedName = apiGroup.unlocalizedName;
+            return group;
+        });
+
+        return apiGroup;
+    }
+
+    private static void parseFile(List<String> itemStrings) {
+        final JsonParser parser = new JsonParser();
+        GroupItem group = new GroupItem();
+
+        for (String itemStr : itemStrings) {
+            try {
+
+                if (itemStr.startsWith("; ")) {
+                    JsonObject settings = parser.parse(itemStr.substring(2)).getAsJsonObject();
+
+                    if (settings.get("unlocalizedName") != null) {
+                        group.unlocalizedName = settings.get("unlocalizedName").getAsString();
+                    }
+
+                    if (settings.get("expanded") != null) {
+                        group.expanded = settings.get("expanded").getAsBoolean();
+                    }
+
+                } else {
+                    group.setFilter(itemStr);
+                }
+
+                if (group.filter != null) {
+                    addGroup(group);
+                    group = new GroupItem();
+                }
+
+            } catch (IllegalArgumentException | JsonSyntaxException | IllegalStateException e) {
+                NEIClientConfig.logger.error("Failed to load collapsible items from json string:\n{}", itemStr);
+            }
+        }
+    }
+
+    private static void addGroup(GroupItem group) {
+        if (group == null || group.filter == null
+                || group.filter instanceof EverythingItemFilter
+                || group.filter instanceof NothingItemFilter)
+            return;
+        CollapsibleItems.groups.add(group);
+    }
+
+    public static boolean isEmpty() {
+        return CollapsibleItems.groups.isEmpty();
+    }
+
+    public static ItemFilter getItemFilter() {
+        AnyMultiItemFilter filter = new AnyMultiItemFilter();
+
+        for (GroupItem group : CollapsibleItems.groups) {
+            filter.filters.add(group.filter);
+        }
+
+        return filter;
+    }
+
+    public static void clearCache() {
+        CollapsibleItems.cache.clear();
+    }
+
+    public static void putItem(ItemStack stack) {
+        int groupIndex = -1;
+
+        for (int i = 0; i < CollapsibleItems.groups.size() && groupIndex == -1; i++) {
+            if (CollapsibleItems.groups.get(i).matches(stack)) {
+                groupIndex = i;
+            }
+        }
+
+        if (groupIndex != -1) {
+            CollapsibleItems.cache.put(stack, groupIndex);
+        }
+    }
+
+    public static int getGroupIndex(ItemStack stack) {
+
+        if (stack == null) {
+            return -1;
+        }
+
+        return CollapsibleItems.cache.getOrDefault(stack, -1);
+    }
+
+    public static String getDisplayName(int groupIndex) {
+
+        if (groupIndex < CollapsibleItems.groups.size()) {
+            return CollapsibleItems.groups.get(groupIndex).getDisplayName();
+        }
+
+        return null;
+    }
+
+    public static boolean isExpanded(int groupIndex) {
+
+        if (groupIndex < CollapsibleItems.groups.size()) {
+            return CollapsibleItems.groups.get(groupIndex).expanded;
+        }
+
+        return true;
+    }
+
+    public static void setExpanded(int groupIndex, boolean expanded) {
+
+        if (groupIndex < CollapsibleItems.groups.size()) {
+            CollapsibleItems.groups.get(groupIndex).expanded = expanded;
+        }
+    }
+
+    public static void toggleGroups(Boolean expanded) {
+
+        if (expanded == null) {
+            expanded = CollapsibleItems.groups.stream().noneMatch(g -> g.expanded);
+        }
+
+        for (GroupItem group : CollapsibleItems.groups) {
+            group.expanded = expanded;
+        }
+
+    }
+
+    public static void saveStates() {
+        NBTTagCompound list = new NBTTagCompound();
+
+        for (GroupItem group : CollapsibleItems.groups) {
+            list.setBoolean(group.guid, group.expanded);
+        }
+
+        if (NEIClientConfig.world != null) {
+            NEIClientConfig.world.nbt.setTag(STATE_KEY, list);
+        }
+    }
+
+    private static void loadStates() {
+
+        try {
+
+            if (NEIClientConfig.world.nbt.hasKey(STATE_KEY)) {
+                NBTTagCompound states = NEIClientConfig.world.nbt.getCompoundTag(STATE_KEY);
+                final Map<String, NBTBase> list = states.tagMap;
+                final Map<String, GroupItem> mapping = new HashMap<>();
+
+                for (GroupItem group : CollapsibleItems.groups) {
+                    mapping.put(group.guid, group);
+                }
+
+                for (Map.Entry<String, NBTBase> nbtEntry : list.entrySet()) {
+                    if (mapping.containsKey(nbtEntry.getKey())) {
+                        mapping.get(nbtEntry.getKey()).expanded = ((NBTPrimitive) nbtEntry.getValue()).func_150290_f()
+                                == 1;
+                    }
+                }
+            }
+
+        } catch (Exception e) {
+            NEIClientConfig.logger.error("Error loading collapsible items states", e);
+        }
+
+    }
+
+}

src/main/java/codechicken/nei/ColorUtils.java

@@ -0,0 +1,24 @@
+package codechicken.nei;
+
+import com.gtnewhorizon.gtnhlib.color.ColorResource;
+
+public class ColorUtils {
+
+    private static final ColorResource.Factory color = new ColorResource.Factory("nei");
+
+    public static final ColorResource
+    // spotless:off
+        textGray            = color.rgb("textGray",             "0x404040"),
+        textLightGray       = color.rgb("textLightGray",        "0x606060"),
+        recipeTitle         = color.rgb("recipeTitle",          "0xFFFFFF"),
+        recipeTitleHover    = color.rgb("recipeTitleHover",     "0xFFFF55"),
+        subsetWidget        = color.rgb("subsetWidget",         "0xAA00AA"),
+        recipeBadge         = color.rgb("recipeBadge",          "0xFDD835"),
+        buttonLabelNormal   = color.rgb("buttonLabelNormal",    "0xE0E0E0"),
+        buttonLabelHover    = color.rgb("buttonLabelHover",     "0xFFFFA0"),
+        buttonLabelDisabled = color.rgb("buttonLabelDisabled",  "0x601010"),
+        buttonLabelInactive = color.rgb("buttonLabelInactive",  "0xA0A0A0"),
+
+        craftingTreeLine    = color.argb("craftingTreeLine",    "0xFF888888");
+    // spotless:on
+}

src/main/java/codechicken/nei/CompositeTooltipLineHandler.java

@@ -0,0 +1,101 @@
+package codechicken.nei;
+
+import java.awt.Dimension;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+
+import codechicken.lib.gui.GuiDraw;
+import codechicken.lib.gui.GuiDraw.ITooltipLineHandler;
+
+public abstract class CompositeTooltipLineHandler implements ITooltipLineHandler {
+
+    protected static final int SCREEN_MARGIN = 8 * 2 + 10;
+    protected static final int RESERVED_HEIGHT = 40;
+
+    protected final List<ItemsTooltipLineHandler> lines = new ArrayList<>();
+    protected final Dimension size = new Dimension();
+
+    protected boolean created = false;
+    protected int screenHeight = 0;
+
+    protected abstract void createLines();
+
+    protected boolean needsUpdate() {
+        return false;
+    }
+
+    @Override
+    public Dimension getSize() {
+        ensureCreated();
+        return this.size;
+    }
+
+    @Override
+    public void draw(int x, int y) {
+        if (this.size.height == 0) return;
+
+        for (ItemsTooltipLineHandler line : this.lines) {
+            line.draw(x, y);
+            y += line.getSize().height;
+        }
+    }
+
+    protected void ensureCreated() {
+        boolean update = needsUpdate();
+        update = this.screenHeight != (this.screenHeight = GuiDraw.displaySize().height) || update;
+
+        if (this.created && !update) {
+            return;
+        }
+
+        this.created = true;
+        this.lines.clear();
+        this.size.setSize(0, 0);
+
+        createLines();
+        fitToScreen();
+
+        for (ItemsTooltipLineHandler line : this.lines) {
+            this.size.width = Math.max(this.size.width, line.getSize().width);
+            this.size.height += line.getSize().height;
+        }
+    }
+
+    protected void fitToScreen() {
+        if (this.lines.isEmpty()) {
+            return;
+        }
+
+        final List<ItemsTooltipLineHandler> ordered = new ArrayList<>(this.lines);
+        ordered.sort(Comparator.comparingInt(ItemsTooltipLineHandler::getRows));
+
+        int budget = availableHeight() / ItemsTooltipLineHandler.SLOT_SIZE;
+        int rest = ordered.size();
+
+        for (ItemsTooltipLineHandler line : ordered) {
+            final int fair = Math.max(1, budget / rest);
+
+            if (line.getRows() > fair) {
+                line.setMaxRows(fair);
+            }
+
+            budget -= line.getRows();
+            rest--;
+        }
+    }
+
+    protected int availableHeight() {
+        return GuiDraw.displaySize().height - SCREEN_MARGIN
+                - RESERVED_HEIGHT
+                - this.lines.size() * ItemsTooltipLineHandler.headerHeight();
+    }
+
+    protected static int maxLineRows() {
+        final int height = GuiDraw.displaySize().height - SCREEN_MARGIN
+                - RESERVED_HEIGHT
+                - ItemsTooltipLineHandler.headerHeight();
+        return Math.max(1, height / ItemsTooltipLineHandler.SLOT_SIZE);
+    }
+
+}

src/main/java/codechicken/nei/ContainerCreativeInv.java

@@ -1,7 +1,5 @@
 package codechicken.nei;
 
-import cpw.mods.fml.relauncher.Side;
-import cpw.mods.fml.relauncher.SideOnly;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.inventory.Container;
@@ -11,10 +9,13 @@ import net.minecraft.item.ItemArmor;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.IIcon;
 
-public class ContainerCreativeInv extends Container
-{
-    private class SlotArmor extends Slot
-    {
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
+public class ContainerCreativeInv extends Container {
+
+    private class SlotArmor extends Slot {
+
         final int armorType;
 
         public SlotArmor(IInventory inv, int x, int y, int slot, int armor) {
@@ -39,15 +40,16 @@ public class ContainerCreativeInv extends Container
         }
     }
 
-    private class SlotBlockArmor extends SlotArmor
-    {
+    private class SlotBlockArmor extends SlotArmor {
+
         public SlotBlockArmor(IInventory inv, int x, int y, int slot, int armor) {
             super(inv, x, y, slot, armor);
         }
 
         @Override
         public boolean isItemValid(ItemStack stack) {
-            return super.isItemValid(stack) || stack != null;// && Block.getBlockFromItem(stack.getItem()) != Blocks.air;
+            return super.isItemValid(stack) || stack != null; // && Block.getBlockFromItem(stack.getItem()) !=
+                                                              // Blocks.air;
         }
     }
 
@@ -56,33 +58,34 @@ public class ContainerCreativeInv extends Container
     public ContainerCreativeInv(EntityPlayer player, ExtendedCreativeInv extraInv) {
         this.player = player;
         InventoryPlayer invPlayer = player.inventory;
-        for (int row = 0; row < 6; row++)
-            for (int col = 0; col < 9; col++)
-                addSlotToContainer(new Slot(extraInv, col + row * 9, 8 + col * 18, 5 + row * 18));
+        for (int row = 0; row < 6; row++) for (int col = 0; col < 9; col++)
+            addSlotToContainer(new Slot(extraInv, col + row * 9, 8 + col * 18, 5 + row * 18));
 
-        for (int row = 0; row < 3; ++row)
-            for (int col = 0; col < 9; ++col)
-                addSlotToContainer(new Slot(invPlayer, col + row * 9 + 9, 8 + col * 18, 118 + row * 18));
+        for (int row = 0; row < 3; ++row) for (int col = 0; col < 9; ++col)
+            addSlotToContainer(new Slot(invPlayer, col + row * 9 + 9, 8 + col * 18, 118 + row * 18));
 
-        for (int col = 0; col < 9; ++col)
-            addSlotToContainer(new Slot(invPlayer, col, 8 + col * 18, 176));
+        for (int col = 0; col < 9; ++col) addSlotToContainer(new Slot(invPlayer, col, 8 + col * 18, 176));
 
         addSlotToContainer(new SlotBlockArmor(invPlayer, invPlayer.getSizeInventory() - 1, -15, 23, 0));
-        for (int armorType = 1; armorType < 4; armorType++)
-            addSlotToContainer(new SlotArmor(invPlayer, invPlayer.getSizeInventory() - 1 - armorType, -15, 23 + armorType * 18, armorType));
+        for (int armorType = 1; armorType < 4; armorType++) addSlotToContainer(
+                new SlotArmor(
+                        invPlayer,
+                        invPlayer.getSizeInventory() - 1 - armorType,
+                        -15,
+                        23 + armorType * 18,
+                        armorType));
     }
 
     @Override
     public ItemStack transferStackInSlot(EntityPlayer par1EntityPlayer, int slotIndex) {
         ItemStack transferredStack = null;
-        Slot slot = (Slot) inventorySlots.get(slotIndex);
+        Slot slot = inventorySlots.get(slotIndex);
 
         if (slot != null && slot.getHasStack()) {
             ItemStack stack = slot.getStack();
             transferredStack = stack.copy();
 
-            if (stack.getItem() instanceof ItemArmor) {
-                ItemArmor armor = (ItemArmor) stack.getItem();
+            if (stack.getItem() instanceof ItemArmor armor) {
                 if (!getSlot(90 + armor.armorType).getHasStack()) {
                     getSlot(90 + armor.armorType).putStack(transferredStack);
                     slot.putStack(null);
@@ -91,16 +94,13 @@ public class ContainerCreativeInv extends Container
             }
 
             if (slotIndex < 54) {
-                if (!this.mergeItemStack(stack, 54, 90, true))
-                    return null;
+                if (!this.mergeItemStack(stack, 54, 90, true)) return null;
             } else if (!this.mergeItemStack(stack, 0, 54, false)) {
                 return null;
             }
 
-            if (stack.stackSize == 0)
-                slot.putStack(null);
-            else
-                slot.onSlotChanged();
+            if (stack.stackSize == 0) slot.putStack(null);
+            else slot.onSlotChanged();
         }
 
         return transferredStack;

src/main/java/codechicken/nei/ContainerEnchantmentModifier.java

@@ -1,28 +1,29 @@
 package codechicken.nei;
 
-import codechicken.lib.render.CCRenderState;
+import java.util.ArrayList;
+
 import net.minecraft.client.gui.Gui;
 import net.minecraft.enchantment.Enchantment;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.inventory.ContainerEnchantment;
 import net.minecraft.inventory.IInventory;
-import net.minecraft.inventory.Slot;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagList;
 import net.minecraft.world.World;
+
 import org.lwjgl.opengl.GL11;
 
-import java.util.ArrayList;
+import codechicken.lib.render.CCRenderState;
 
 /**
  * This is crap code, don't ever do this.
  */
-public class ContainerEnchantmentModifier extends ContainerEnchantment
-{
-    public static class EnchantmentHash
-    {
+public class ContainerEnchantmentModifier extends ContainerEnchantment {
+
+    public static class EnchantmentHash {
+
         public EnchantmentHash(Enchantment e, int i, int l) {
             enchantment = e;
             state = i;
@@ -104,10 +105,11 @@ public class ContainerEnchantmentModifier extends ContainerEnchantment
         int barempty = height - getScrollBarHeight();
         int sbary = rely + (int) (barempty * percentscrolled + 0.5);
 
-        if (button == 0 &&
-                getScrollBarHeight() < height && //the scroll bar can move (not full length)
-                mousex >= relx + cwidth && mousex < relx + cwidth + getScrollBarWidth() &&
-                mousey >= rely && mousey < rely + height)//in the scroll pane
+        if (button == 0 && getScrollBarHeight() < height && // the scroll bar can move (not full length)
+                mousex >= relx + cwidth
+                && mousex < relx + cwidth + getScrollBarWidth()
+                && mousey >= rely
+                && mousey < rely + height) // in the scroll pane
         {
             if (mousey < sbary) {
                 percentscrolled = (mousey - rely) / (float) barempty;
@@ -126,7 +128,7 @@ public class ContainerEnchantmentModifier extends ContainerEnchantment
     }
 
     public void mouseUp(int mousex, int mousey, int button) {
-        if (scrollclicky >= 0 && button == 0)//we were scrolling and we released mouse
+        if (scrollclicky >= 0 && button == 0) // we were scrolling and we released mouse
         {
             scrollclicky = -1;
         }
@@ -135,8 +137,7 @@ public class ContainerEnchantmentModifier extends ContainerEnchantment
     public boolean clickButton(int mousex, int mousey, int button) {
         mousex -= parentscreen.guiLeft;
         mousey -= parentscreen.guiTop;
-        if (mousex >= relx && mousex < relx + cwidth &&
-                mousey >= rely && mousey <= rely + height)//in the box
+        if (mousex >= relx && mousex < relx + cwidth && mousey >= rely && mousey <= rely + height) // in the box
         {
             int slot = getClickedSlot(mousey);
             if (slot >= getNumSlots()) return false;
@@ -162,24 +163,22 @@ public class ContainerEnchantmentModifier extends ContainerEnchantment
 
     public boolean addEnchantment(int e, int level) {
         if (e < Enchantment.enchantmentsList.length && Enchantment.enchantmentsList[e] != null) {
-            ((Slot) inventorySlots.get(0)).getStack().addEnchantment(Enchantment.enchantmentsList[e], level);
+            inventorySlots.get(0).getStack().addEnchantment(Enchantment.enchantmentsList[e], level);
             return true;
         }
         return false;
     }
 
     public void removeEnchantment(int e) {
-        ItemStack stack = ((Slot) inventorySlots.get(0)).getStack();
+        ItemStack stack = inventorySlots.get(0).getStack();
         NBTTagList nbttaglist = stack.getEnchantmentTagList();
         if (nbttaglist != null) {
             for (int i = 0; i < nbttaglist.tagCount(); i++) {
                 int ID = nbttaglist.getCompoundTagAt(i).getShort("id");
                 if (ID == e) {
                     nbttaglist.removeTag(i);
-                    if (nbttaglist.tagCount() == 0)
-                        stack.getTagCompound().removeTag("ench");
-                    if (stack.getTagCompound().hasNoTags())
-                        stack.setTagCompound(null);
+                    if (nbttaglist.tagCount() == 0) stack.getTagCompound().removeTag("ench");
+                    if (stack.getTagCompound().hasNoTags()) stack.setTagCompound(null);
                     return;
                 }
             }
@@ -191,8 +190,7 @@ public class ContainerEnchantmentModifier extends ContainerEnchantment
     }
 
     public void onCraftMatrixChanged(IInventory iinventory) {
-        if (parentscreen != null)
-            updateEnchantmentOptions(GuiEnchantmentModifier.validateEnchantments());
+        if (parentscreen != null) updateEnchantmentOptions(GuiEnchantmentModifier.validateEnchantments());
     }
 
     public void updateEnchantmentOptions(boolean validate) {
@@ -221,9 +219,10 @@ public class ContainerEnchantmentModifier extends ContainerEnchantment
             if (NEIServerUtils.stackHasEnchantment(toolstack, e.effectId)) {
                 state = 2;
                 level = NEIServerUtils.getEnchantmentLevel(toolstack, e.effectId);
-            } else if (NEIServerUtils.doesEnchantmentConflict(NEIServerUtils.getEnchantments(toolstack), e) && validate) {
-                state = 1;
-            }
+            } else
+                if (NEIServerUtils.doesEnchantmentConflict(NEIServerUtils.getEnchantments(toolstack), e) && validate) {
+                    state = 1;
+                }
             slotEnchantment.add(new EnchantmentHash(e, state, level));
         }
         if (numoptions != slotEnchantment.size()) {
@@ -257,10 +256,28 @@ public class ContainerEnchantmentModifier extends ContainerEnchantment
             CCRenderState.changeTexture("textures/gui/container/enchanting_table.png");
             GL11.glColor3f(1, 1, 1);
             if (hasScrollBar()) {
-                gui.drawTexturedModalRect(relx, rely + slot * slotheight, 0, gui.ySize + slotheight * shade, cwidth - 30, slotheight);
-                gui.drawTexturedModalRect(relx + cwidth - 30, rely + slot * slotheight, cwidth - 23, gui.ySize + slotheight * shade, 30, slotheight);
+                gui.drawTexturedModalRect(
+                        relx,
+                        rely + slot * slotheight,
+                        0,
+                        gui.ySize + slotheight * shade,
+                        cwidth - 30,
+                        slotheight);
+                gui.drawTexturedModalRect(
+                        relx + cwidth - 30,
+                        rely + slot * slotheight,
+                        cwidth - 23,
+                        gui.ySize + slotheight * shade,
+                        30,
+                        slotheight);
             } else {
-                gui.drawTexturedModalRect(relx, rely + slot * slotheight, 0, gui.ySize + slotheight * shade, cwidth + 7, slotheight);
+                gui.drawTexturedModalRect(
+                        relx,
+                        rely + slot * slotheight,
+                        0,
+                        gui.ySize + slotheight * shade,
+                        cwidth + 7,
+                        slotheight);
             }
 
             gui.getFontRenderer().drawString(text, relx + 4, rely + slot * slotheight + 5, textColourFromState(shade));
@@ -277,18 +294,32 @@ public class ContainerEnchantmentModifier extends ContainerEnchantment
         int sbary = rely + (int) ((height - getScrollBarHeight()) * percentscrolled + 0.5);
         int sbarx = relx + cwidth;
 
-        Gui.drawRect(sbarx, rely, sbarx + getScrollBarWidth(), rely + height, 0xFF202020);//background
-        Gui.drawRect(sbarx, sbary, sbarx + getScrollBarWidth(), sbary + getScrollBarHeight(), 0xFF8B8B8B);//corners
-        Gui.drawRect(sbarx, sbary, sbarx + getScrollBarWidth() - 1, sbary + getScrollBarHeight() - 1, 0xFFF0F0F0);//topleft up
-        Gui.drawRect(sbarx + 1, sbary + 1, sbarx + getScrollBarWidth() - 1, sbary + getScrollBarHeight() - 1, 0xFF555555);//bottom right down
-        Gui.drawRect(sbarx + 1, sbary + 1, sbarx + getScrollBarWidth() - 2, sbary + getScrollBarHeight() - 2, 0xFFC6C6C6);//scrollbar
+        Gui.drawRect(sbarx, rely, sbarx + getScrollBarWidth(), rely + height, 0xFF202020); // background
+        Gui.drawRect(sbarx, sbary, sbarx + getScrollBarWidth(), sbary + getScrollBarHeight(), 0xFF8B8B8B); // corners
+        Gui.drawRect(sbarx, sbary, sbarx + getScrollBarWidth() - 1, sbary + getScrollBarHeight() - 1, 0xFFF0F0F0); // topleft
+                                                                                                                   // up
+        Gui.drawRect(
+                sbarx + 1,
+                sbary + 1,
+                sbarx + getScrollBarWidth() - 1,
+                sbary + getScrollBarHeight() - 1,
+                0xFF555555); // bottom right down
+        Gui.drawRect(
+                sbarx + 1,
+                sbary + 1,
+                sbarx + getScrollBarWidth() - 2,
+                sbary + getScrollBarHeight() - 2,
+                0xFFC6C6C6); // scrollbar
     }
 
     private int textColourFromState(int shade) {
-        switch(shade) {
-            case 0: return 0x685e4a;
-            case 1: return 0x407f10;
-            default: return 0xffff80;
+        switch (shade) {
+            case 0:
+                return 0x685e4a;
+            case 1:
+                return 0x407f10;
+            default:
+                return 0xffff80;
         }
     }
 

src/main/java/codechicken/nei/ContainerPotionCreator.java

@@ -1,10 +1,5 @@
 package codechicken.nei;
 
-import codechicken.lib.inventory.ContainerExtended;
-import codechicken.lib.inventory.InventoryNBT;
-import codechicken.lib.inventory.InventoryUtils;
-import codechicken.lib.inventory.SlotHandleClicks;
-import codechicken.lib.packet.PacketCustom;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.inventory.IInventory;
@@ -16,10 +11,16 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
 import net.minecraft.potion.PotionEffect;
 
-public class ContainerPotionCreator extends ContainerExtended
-{
-    public class SlotPotion extends Slot
-    {
+import codechicken.lib.inventory.ContainerExtended;
+import codechicken.lib.inventory.InventoryNBT;
+import codechicken.lib.inventory.InventoryUtils;
+import codechicken.lib.inventory.SlotHandleClicks;
+import codechicken.lib.packet.PacketCustom;
+
+public class ContainerPotionCreator extends ContainerExtended {
+
+    public class SlotPotion extends Slot {
+
         public SlotPotion(IInventory inv, int slotIndex, int x, int y) {
             super(inv, slotIndex, x, y);
         }
@@ -34,16 +35,15 @@ public class ContainerPotionCreator extends ContainerExtended
             super.onSlotChanged();
             if (getHasStack()) {
                 ItemStack stack = getStack();
-                if (!stack.hasTagCompound())
-                    stack.setTagCompound(new NBTTagCompound());
+                if (!stack.hasTagCompound()) stack.setTagCompound(new NBTTagCompound());
                 if (!stack.getTagCompound().hasKey("CustomPotionEffects"))
                     stack.getTagCompound().setTag("CustomPotionEffects", new NBTTagList());
             }
         }
     }
 
-    public class SlotPotionStore extends SlotHandleClicks
-    {
+    public class SlotPotionStore extends SlotHandleClicks {
+
         public SlotPotionStore(IInventory inv, int slotIndex, int x, int y) {
             super(inv, slotIndex, x, y);
         }
@@ -60,8 +60,7 @@ public class ContainerPotionCreator extends ContainerExtended
                     putStack(InventoryUtils.copyStack(held, 1));
                     player.inventory.setItemStack(null);
                 }
-            } else if (getHasStack())
-                player.inventory.setItemStack(getStack());
+            } else if (getHasStack()) player.inventory.setItemStack(getStack());
 
             return null;
         }
@@ -72,8 +71,8 @@ public class ContainerPotionCreator extends ContainerExtended
         }
     }
 
-    public static class InventoryPotionStore extends InventoryNBT
-    {
+    public static class InventoryPotionStore extends InventoryNBT {
+
         public InventoryPotionStore() {
             super(9, NEIClientConfig.global.nbt.getCompoundTag("potionStore"));
         }
@@ -82,7 +81,6 @@ public class ContainerPotionCreator extends ContainerExtended
         public void markDirty() {
             super.markDirty();
             NEIClientConfig.global.nbt.setTag("potionStore", tag);
-            NEIClientConfig.global.saveNBT();
         }
     }
 
@@ -96,15 +94,13 @@ public class ContainerPotionCreator extends ContainerExtended
         this.potionStoreInv = potionStoreInv;
 
         addSlotToContainer(new SlotPotion(potionInv, 0, 25, 102));
-        for (int i = 0; i < 9; i++)
-            addSlotToContainer(new SlotPotionStore(potionStoreInv, i, 8 + i * 18, 14));
+        for (int i = 0; i < 9; i++) addSlotToContainer(new SlotPotionStore(potionStoreInv, i, 8 + i * 18, 14));
         bindPlayerInventory(inventoryPlayer, 8, 125);
     }
 
     @Override
     public boolean doMergeStackAreas(int slotIndex, ItemStack stack) {
-        if (slotIndex < 10)
-            return mergeItemStack(stack, 10, 46, true);
+        if (slotIndex < 10) return mergeItemStack(stack, 10, 46, true);
         return mergeItemStack(stack, 0, 1, false);
     }
 
@@ -117,30 +113,27 @@ public class ContainerPotionCreator extends ContainerExtended
     public void onContainerClosed(EntityPlayer player) {
         super.onContainerClosed(player);
 
-        if (!player.worldObj.isRemote)
-            InventoryUtils.dropOnClose(player, potionInv);
+        if (!player.worldObj.isRemote) InventoryUtils.dropOnClose(player, potionInv);
     }
 
-    @SuppressWarnings("unchecked")
     @Override
     public void handleServerPacket(PacketCustom packet) {
         ItemStack potion = potionInv.getStackInSlot(0);
-        if (potion == null)
-            return;
+        if (potion == null) return;
 
         boolean add = packet.getType() == 3;
         int effectID = packet.readUByte();
 
         NBTTagList effects = potion.getTagCompound().getTagList("CustomPotionEffects", 10);
         NBTTagList newEffects = new NBTTagList();
-        for(int i = 0; i < effects.tagCount(); i++) {
+        for (int i = 0; i < effects.tagCount(); i++) {
             NBTTagCompound tag = effects.getCompoundTagAt(i);
             PotionEffect e = PotionEffect.readCustomPotionEffectFromNBT(tag);
-            if(e.getPotionID() != effectID)
-                newEffects.appendTag(tag);
+            if (e.getPotionID() != effectID) newEffects.appendTag(tag);
         }
-        if(add)
-            newEffects.appendTag(new PotionEffect(effectID, packet.readInt(), packet.readUByte()).writeCustomPotionEffectToNBT(new NBTTagCompound()));
+        if (add) newEffects.appendTag(
+                new PotionEffect(effectID, packet.readInt(), packet.readUByte())
+                        .writeCustomPotionEffectToNBT(new NBTTagCompound()));
         potion.getTagCompound().setTag("CustomPotionEffects", newEffects);
     }
 
@@ -157,4 +150,4 @@ public class ContainerPotionCreator extends ContainerExtended
         packet.writeByte(effectID);
         packet.sendToServer();
     }
-}
+}

src/main/java/codechicken/nei/DefaultBookmarkContainerHandler.java

@@ -0,0 +1,30 @@
+package codechicken.nei;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.ItemStack;
+
+import codechicken.nei.api.IBookmarkContainerHandler;
+
+public class DefaultBookmarkContainerHandler implements IBookmarkContainerHandler {
+
+    @Override
+    public void pullBookmarkItemsFromContainer(GuiContainer guiContainer, ArrayList<ItemStack> bookmarkItems) {
+        final List<Slot> slots = guiContainer.inventorySlots.inventorySlots;
+        final FastTransferManager manager = new FastTransferManager();
+
+        for (ItemStack bookmarkItem : bookmarkItems) {
+            for (int i = 0; i < slots.size() - 4 * 9; i++) {
+                final Slot slot = slots.get(i);
+                if (slot.getHasStack() && bookmarkItem.isItemEqual(slot.getStack())) {
+                    final int transferAmount = Math.min(bookmarkItem.stackSize, slot.getStack().stackSize);
+                    manager.transferItems(guiContainer, i, transferAmount);
+                    bookmarkItem.stackSize -= transferAmount;
+                }
+            }
+        }
+    }
+}

src/main/java/codechicken/nei/DefaultHighlightHandler.java

@@ -1,35 +1,34 @@
 package codechicken.nei;
 
-import codechicken.nei.api.IHighlightHandler;
-import codechicken.nei.api.ItemInfo;
-import codechicken.nei.guihook.GuiContainerManager;
+import java.util.List;
+
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.init.Items;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.MovingObjectPosition;
 import net.minecraft.world.World;
 
-import java.util.List;
+import codechicken.nei.api.IHighlightHandler;
+import codechicken.nei.api.ItemInfo;
+import codechicken.nei.guihook.GuiContainerManager;
+
+public class DefaultHighlightHandler implements IHighlightHandler {
 
-public class DefaultHighlightHandler implements IHighlightHandler
-{
     @Override
-    public List<String> handleTextData(ItemStack stack, World world, EntityPlayer player, MovingObjectPosition mop, List<String> currenttip, ItemInfo.Layout layout) {
+    public List<String> handleTextData(ItemStack stack, World world, EntityPlayer player, MovingObjectPosition mop,
+            List<String> currenttip, ItemInfo.Layout layout) {
         String name = null;
         try {
             String s = GuiContainerManager.itemDisplayNameShort(stack);
-            if (s != null && !s.endsWith("Unnamed"))
-                name = s;
+            if (!s.endsWith("Unnamed")) name = s;
 
-            if (name != null)
-                currenttip.add(name);
+            if (name != null) currenttip.add(name);
         } catch (Exception ignored) {}
 
         if (name != null && stack.getItem() == Items.redstone) {
             int md = world.getBlockMetadata(mop.blockX, mop.blockY, mop.blockZ);
             String s = "" + md;
-            if (s.length() < 2)
-                s = " " + s;
+            if (s.length() < 2) s = " " + s;
             currenttip.set(currenttip.size() - 1, name + " " + s);
         }
 

src/main/java/codechicken/nei/DoubleFilteredFilter.java

@@ -1,22 +0,0 @@
-package codechicken.nei;
-
-import codechicken.nei.api.ItemFilter;
-import net.minecraft.item.ItemStack;
-
-public class DoubleFilteredFilter implements ItemFilter {
-    private ItemFilter filter;
-    private ItemList.PatternItemFilter patternFilter;
-    
-    public DoubleFilteredFilter(ItemFilter filter, String itemFilter) {
-        this.filter = filter; 
-        this.patternFilter = new ItemList.PatternItemFilter(SearchField.getPattern(itemFilter));
-    }
-
-    @Override
-    public boolean matches(ItemStack item) {
-        if(filter.matches(item)) {
-            return patternFilter.matches(item);
-        }
-        return false;
-    }
-}

src/main/java/codechicken/nei/ExtendedCreativeInv.java

@@ -1,12 +1,13 @@
 package codechicken.nei;
 
-import cpw.mods.fml.relauncher.Side;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
 
-public class ExtendedCreativeInv implements IInventory
-{
+import cpw.mods.fml.relauncher.Side;
+
+public class ExtendedCreativeInv implements IInventory {
+
     final PlayerSave playerSave;
     final Side side;
 
@@ -22,8 +23,7 @@ public class ExtendedCreativeInv implements IInventory
 
     @Override
     public ItemStack getStackInSlot(int slot) {
-        if (side.isClient())
-            return NEIClientConfig.creativeInv[slot];
+        if (side.isClient()) return NEIClientConfig.creativeInv[slot];
         return playerSave.creativeInv[slot];
     }
 
@@ -58,10 +58,8 @@ public class ExtendedCreativeInv implements IInventory
 
     @Override
     public void setInventorySlotContents(int slot, ItemStack stack) {
-        if (side.isClient())
-            NEIClientConfig.creativeInv[slot] = stack;
-        else
-            playerSave.creativeInv[slot] = stack;
+        if (side.isClient()) NEIClientConfig.creativeInv[slot] = stack;
+        else playerSave.creativeInv[slot] = stack;
 
         markDirty();
     }
@@ -78,8 +76,7 @@ public class ExtendedCreativeInv implements IInventory
 
     @Override
     public void markDirty() {
-        if (side.isServer())
-            playerSave.setCreativeDirty();
+        if (side.isServer()) playerSave.setCreativeDirty();
     }
 
     @Override
@@ -88,12 +85,10 @@ public class ExtendedCreativeInv implements IInventory
     }
 
     @Override
-    public void openInventory() {
-    }
+    public void openInventory() {}
 
     @Override
-    public void closeInventory() {
-    }
+    public void closeInventory() {}
 
     @Override
     public boolean isItemValidForSlot(int slot, ItemStack stack) {
@@ -104,5 +99,4 @@ public class ExtendedCreativeInv implements IInventory
     public boolean hasCustomInventoryName() {
         return true;
     }
-
 }

src/main/java/codechicken/nei/FastTransferManager.java

@@ -1,27 +1,30 @@
 package codechicken.nei;
 
-import codechicken.nei.guihook.GuiContainerManager;
-import net.minecraft.client.gui.inventory.GuiContainer;
-import net.minecraft.inventory.Container;
-import net.minecraft.inventory.Slot;
-import net.minecraft.item.ItemStack;
+import static codechicken.nei.NEIServerUtils.areStacksIdentical;
+import static codechicken.nei.NEIServerUtils.areStacksSameType;
+import static codechicken.nei.NEIServerUtils.copyStack;
 
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.LinkedList;
 
-import static codechicken.nei.NEIServerUtils.areStacksIdentical;
-import static codechicken.nei.NEIServerUtils.areStacksSameType;
-import static codechicken.nei.NEIServerUtils.copyStack;
+import net.minecraft.client.entity.EntityPlayerSP;
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.entity.player.InventoryPlayer;
+import net.minecraft.inventory.Container;
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.ItemStack;
+
+import codechicken.nei.guihook.GuiContainerManager;
+
+public class FastTransferManager {
 
-public class FastTransferManager
-{
     /**
      * Based on the general assumption that we want to fill top to bottom, left to right
      */
-    public static class SlotPositionComparator implements Comparator<Integer>
-    {
+    public static class SlotPositionComparator implements Comparator<Integer> {
+
         final Container container;
 
         public SlotPositionComparator(Container c) {
@@ -47,8 +50,7 @@ public class FastTransferManager
         stack.stackSize = 1;
 
         for (int slotNo = 0; slotNo < container.inventorySlots.size(); slotNo++) {
-            if (slotZoneMap.containsKey(slotNo) || !container.getSlot(slotNo).isItemValid(stack))
-                continue;
+            if (slotZoneMap.containsKey(slotNo) || !container.getSlot(slotNo).isItemValid(stack)) continue;
 
             HashSet<Integer> connectedSlots = new HashSet<>();
             findConnectedSlots(container, slotNo, connectedSlots);
@@ -69,11 +71,11 @@ public class FastTransferManager
         final int threshold = 18;
 
         for (int i = 0; i < container.inventorySlots.size(); i++) {
-            if (connectedSlots.contains(i))
-                continue;
+            if (connectedSlots.contains(i)) continue;
 
             Slot slot1 = container.getSlot(i);
-            if (Math.abs(slot.xDisplayPosition - slot1.xDisplayPosition) <= threshold && Math.abs(slot.yDisplayPosition - slot1.yDisplayPosition) <= threshold) {
+            if (Math.abs(slot.xDisplayPosition - slot1.xDisplayPosition) <= threshold
+                    && Math.abs(slot.yDisplayPosition - slot1.yDisplayPosition) <= threshold) {
                 findConnectedSlots(container, i, connectedSlots);
             }
         }
@@ -82,15 +84,14 @@ public class FastTransferManager
     public static int findSlotWithItem(Container container, ItemStack teststack) {
         for (int slotNo = 0; slotNo < container.inventorySlots.size(); slotNo++) {
             ItemStack stack = container.getSlot(slotNo).getStack();
-            if (areStacksSameType(stack, teststack))
-                return slotNo;
+            if (areStacksSameType(stack, teststack)) return slotNo;
         }
         return -1;
     }
 
     public static void clearSlots(Container container) {
         for (int slotNo = 0; slotNo < container.inventorySlots.size(); slotNo++)
-            ((Slot) container.inventorySlots.get(slotNo)).putStack(null);
+            container.inventorySlots.get(slotNo).putStack(null);
     }
 
     public void performMassTransfer(GuiContainer window, int fromSlot, int toSlot, ItemStack heldStack) {
@@ -99,20 +100,16 @@ public class FastTransferManager
         Integer fromZone = slotZoneMap.get(fromSlot);
         Integer toZone = slotZoneMap.get(toSlot);
 
-        if (fromZone == null || toZone == null || fromZone.equals(toZone))
-            return;
+        if (fromZone == null || toZone == null || fromZone.equals(toZone)) return;
 
-        if (NEIClientUtils.getHeldItem() != null && !areStacksSameType(heldStack, NEIClientUtils.getHeldItem()))
-            return;
+        if (NEIClientUtils.getHeldItem() != null && !areStacksSameType(heldStack, NEIClientUtils.getHeldItem())) return;
 
-        if (!fillZoneWithHeldItem(window, toZone))
-            return;
+        if (!fillZoneWithHeldItem(window, toZone)) return;
 
         for (int transferFrom : slotZones.get(fromZone)) {
             ItemStack transferStack = window.inventorySlots.getSlot(transferFrom).getStack();
 
-            if (!areStacksSameType(heldStack, transferStack))
-                continue;
+            if (!areStacksSameType(heldStack, transferStack)) continue;
 
             clickSlot(window, transferFrom);
             if (!fillZoneWithHeldItem(window, toZone)) {
@@ -130,8 +127,7 @@ public class FastTransferManager
 
         Slot slot = container.getSlot(fromSlot);
         ItemStack stack = slot.getStack();
-        if (stack == null)
-            return -1;
+        if (stack == null) return -1;
 
         stack.stackSize = 1;
         slot.putStack(stack.copy());
@@ -141,19 +137,19 @@ public class FastTransferManager
         LinkedList<ItemStack> compareAfter = saveContainer(container);
 
         try {
-            //if(compareAfter.get(fromSlot) != null)//transfer failed
-            //return -1;
+            // if(compareAfter.get(fromSlot) != null)//transfer failed
+            // return -1;
 
             for (int i = 0; i < compareBefore.size(); i++) {
-                if (i == fromSlot)
-                    continue;
+                if (i == fromSlot) continue;
 
                 ItemStack before = compareBefore.get(i);
                 ItemStack after = compareAfter.get(i);
 
                 if (!areStacksIdentical(before, after) && after != null)
-                    if (before == null ? areStacksSameType(stack, after) ://transfered into this empty slot
-                            areStacksSameType(stack, after) && after.stackSize - before.stackSize > 0)//it added to this stack
+                    if (before == null ? areStacksSameType(stack, after) : // transfered into this empty slot
+                            areStacksSameType(stack, after) && after.stackSize - before.stackSize > 0) // it added to
+                                                                                                       // this stack
                         return i;
             }
 
@@ -181,45 +177,48 @@ public class FastTransferManager
 
     public void transferItem(GuiContainer window, int fromSlot) {
         int toSlot = findShiftClickDestinationSlot(window.inventorySlots, fromSlot);
-        if (toSlot == -1)
-            return;
+        if (toSlot == -1) return;
 
         Slot from = window.inventorySlots.getSlot(fromSlot);
 
-        if (from.isItemValid(from.getStack()))
-            moveOneItem(window, fromSlot, toSlot);
-        else//slots that you can't put stuff in
+        if (from.isItemValid(from.getStack())) moveOneItem(window, fromSlot, toSlot);
+        else // slots that you can't put stuff in
             moveOutputSet(window, fromSlot, toSlot);
     }
 
-    public void moveOutputSet(GuiContainer window, int fromSlot, int toSlot) {
-        if (NEIClientUtils.getHeldItem() != null)
-            return;
+    public void transferItems(GuiContainer window, int fromSlot, int itemCount) {
+        for (int i = 0; i < itemCount; i++) {
+            transferItem(window, fromSlot);
+        }
+    }
 
-        clickSlot(window, fromSlot);//pickup fromSlot
-        if (NEIClientUtils.getHeldItem() == null)//maybe this container does auto transfers. No need to pick up the final item
+    public void moveOutputSet(GuiContainer window, int fromSlot, int toSlot) {
+        if (NEIClientUtils.getHeldItem() != null) return;
+
+        clickSlot(window, fromSlot); // pickup fromSlot
+        if (NEIClientUtils.getHeldItem() == null) // maybe this container does auto transfers. No need to pick up the
+                                                  // final item
             return;
-        clickSlot(window, toSlot);//place one in toSlot
+        clickSlot(window, toSlot); // place one in toSlot
     }
 
     public void moveOneItem(GuiContainer window, int fromSlot, int toSlot) {
-        clickSlot(window, fromSlot);//pickup fromSlot
-        clickSlot(window, toSlot, 1);//place one in toSlot
-        clickSlot(window, fromSlot);//place down in fromSlot
+        clickSlot(window, fromSlot); // pickup fromSlot
+        clickSlot(window, toSlot, 1); // place one in toSlot
+        clickSlot(window, fromSlot); // place down in fromSlot
     }
 
     public void retrieveItem(GuiContainer window, int toSlot) {
         Slot slot = window.inventorySlots.getSlot(toSlot);
         ItemStack slotStack = slot.getStack();
-        if (slotStack == null ||
-                slotStack.stackSize == slot.getSlotStackLimit() ||
-                slotStack.stackSize == slotStack.getMaxStackSize())
+        if (slotStack == null || slotStack.stackSize == slot.getSlotStackLimit()
+                || slotStack.stackSize == slotStack.getMaxStackSize())
             return;
 
         generateSlotMap(window.inventorySlots, slotStack);
 
         Integer destZone = slotZoneMap.get(toSlot);
-        if (destZone == null)//slots that don't accept
+        if (destZone == null) // slots that don't accept
             return;
 
         int firstZoneSlot = findShiftClickDestinationSlot(window.inventorySlots, toSlot);
@@ -228,17 +227,14 @@ public class FastTransferManager
             Integer integer = slotZoneMap.get(firstZoneSlot);
             if (integer != null) {
                 firstZone = integer;
-                if (retrieveItemFromZone(window, firstZone, toSlot))
-                    return;
+                if (retrieveItemFromZone(window, firstZone, toSlot)) return;
             }
         }
 
         for (int zone = 0; zone < slotZones.size(); zone++) {
-            if (zone == destZone || zone == firstZone)
-                continue;
+            if (zone == destZone || zone == firstZone) continue;
 
-            if (retrieveItemFromZone(window, zone, toSlot))
-                return;
+            if (retrieveItemFromZone(window, zone, toSlot)) return;
         }
 
         retrieveItemFromZone(window, destZone, toSlot);
@@ -247,14 +243,14 @@ public class FastTransferManager
     private boolean retrieveItemFromZone(GuiContainer window, int zone, int toSlot) {
         ItemStack stack = window.inventorySlots.getSlot(toSlot).getStack();
         for (int i : slotZones.get(zone)) {
-            if (i == toSlot)
-                continue;
+            if (i == toSlot) continue;
 
             Slot slot = window.inventorySlots.getSlot(i);
             ItemStack stack1 = slot.getStack();
 
-            if (areStacksSameType(stack, stack1) &&
-                    stack1.stackSize != slot.getSlotStackLimit() && //get from full stacks on second pass
+            if (areStacksSameType(stack, stack1) && stack1.stackSize != slot.getSlotStackLimit() && // get from full
+                                                                                                    // stacks on second
+                                                                                                    // pass
                     stack1.stackSize != stack1.getMaxStackSize()) {
                 moveOneItem(window, i, toSlot);
                 return true;
@@ -262,8 +258,7 @@ public class FastTransferManager
         }
 
         for (int i : slotZones.get(zone)) {
-            if (i == toSlot)
-                continue;
+            if (i == toSlot) continue;
 
             Slot slot = window.inventorySlots.getSlot(i);
             ItemStack stack1 = slot.getStack();
@@ -288,32 +283,49 @@ public class FastTransferManager
         GuiContainerManager.getManager(window).handleSlotClick(slotIndex, button, modifier);
     }
 
+    public static int dropHeldItem(GuiContainer window) {
+        final EntityPlayerSP player = window.mc.thePlayer;
+        final ItemStack held = player.inventory.getItemStack();
+
+        if (held == null) return -1;
+
+        for (int i = 0; i < window.inventorySlots.inventorySlots.size(); i++) {
+            final Slot slot = window.inventorySlots.inventorySlots.get(i);
+
+            if (slot.inventory instanceof InventoryPlayer && !slot.getHasStack() && slot.isItemValid(held)) {
+                clickSlot(window, i, 0, 0);
+
+                if (player.inventory.getItemStack() == null) {
+                    return i;
+                }
+            }
+        }
+
+        return -1;
+    }
+
     private boolean fillZoneWithHeldItem(GuiContainer window, int zoneIndex) {
         for (int transferTo : slotZones.get(zoneIndex)) {
             ItemStack held = NEIClientUtils.getHeldItem();
 
-            if (held == null)
-                break;
+            if (held == null) break;
 
             ItemStack inToSlot = window.inventorySlots.getSlot(transferTo).getStack();
 
-            if (!areStacksSameType(inToSlot, held))
-                continue;
+            if (!areStacksSameType(inToSlot, held)) continue;
 
             clickSlot(window, transferTo);
         }
 
-        for (int transferTo : slotZones.get(zoneIndex))//repeat on empty slots
+        for (int transferTo : slotZones.get(zoneIndex)) // repeat on empty slots
         {
             ItemStack held = NEIClientUtils.getHeldItem();
 
-            if (held == null)
-                break;
+            if (held == null) break;
 
             ItemStack inToSlot = window.inventorySlots.getSlot(transferTo).getStack();
 
-            if (inToSlot != null)
-                continue;
+            if (inToSlot != null) continue;
 
             clickSlot(window, transferTo);
         }
@@ -323,14 +335,13 @@ public class FastTransferManager
 
     public void throwAll(GuiContainer window, int pickedUpFromSlot) {
         ItemStack held = NEIClientUtils.getHeldItem();
-        if (held == null)
-            return;
+        if (held == null) return;
 
         clickSlot(window, -999);
 
         generateSlotMap(window.inventorySlots, held);
         Integer zone = slotZoneMap.get(pickedUpFromSlot);
-        if(zone == null) //something went wrong and we can't work out where the item was picked up from
+        if (zone == null) // something went wrong and we can't work out where the item was picked up from
             return;
 
         for (int slotIndex : slotZones.get(zone)) {

src/main/java/codechicken/nei/FavoriteRecipes.java

@@ -0,0 +1,395 @@
+package codechicken.nei;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+
+import net.minecraft.init.Blocks;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+
+import org.apache.commons.io.IOUtils;
+
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.JsonSyntaxException;
+
+import codechicken.core.CommonUtils;
+import codechicken.nei.api.API;
+import codechicken.nei.recipe.GuiCraftingRecipe;
+import codechicken.nei.recipe.GuiRecipeTab;
+import codechicken.nei.recipe.ICraftingHandler;
+import codechicken.nei.recipe.Recipe.RecipeId;
+import codechicken.nei.recipe.RecipeHandlerRef;
+import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.FavoriteStorage;
+import codechicken.nei.util.NBTJson;
+
+public class FavoriteRecipes {
+
+    protected static final class FastKey {
+
+        public final ItemStack stack;
+        private int hash;
+
+        public FastKey(ItemStack stack) {
+            this.stack = stack;
+
+            this.hash = 31 + Item.getIdFromItem(stack.getItem());
+            this.hash = 31 * this.hash + stack.getItemDamage();
+        }
+
+        @Override
+        public int hashCode() {
+            return this.hash;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) return true;
+
+            if (o instanceof FastKey k && this.stack.getItem() == k.stack.getItem()
+                    && this.stack.getItemDamage() == k.stack.getItemDamage()) {
+                return this.stack == k.stack || Objects.equals(this.stack.stackTagCompound, k.stack.stackTagCompound);
+            }
+
+            return false;
+        }
+    }
+
+    private static final RestartableTask singleRecipeFavoritesTask = new RestartableTask(
+            "Generate Single-Recipe Favorites") {
+
+        @Override
+        public void execute() {
+            final List<ICraftingHandler> handlers = GuiCraftingRecipe.getCraftingHandlers("all");
+            final Map<FastKey, RecipeHandlerRef> autogeneratedRecipes = new HashMap<>();
+            final Set<FastKey> whitelistItems = new HashSet<>(ItemList.items.size());
+            final FavoriteStorage storage = new FavoriteStorage();
+
+            for (ItemStack stack : ItemList.items) {
+                whitelistItems.add(new FastKey(stack));
+            }
+
+            if (interrupted()) return;
+
+            for (ICraftingHandler handler : handlers) {
+                if (!GuiRecipeTab.getHandlerInfo(handler).getShowFavoritesButton()) continue;
+
+                for (int i = 0; i < handler.numRecipes(); i++) {
+                    RecipeHandlerRef ref = null;
+
+                    for (PositionedStack result : handler.getResultStacks(i)) {
+                        ItemStack stack = StackInfo.getItemStackWithMinimumDamage(result.items);
+                        final FastKey key = new FastKey(stack);
+
+                        if (!whitelistItems.contains(key)) continue;
+
+                        if (autogeneratedRecipes.get(key) == null) {
+
+                            if (ref == null) {
+                                ref = RecipeHandlerRef.of(handler, i);
+                            }
+
+                            autogeneratedRecipes.put(key, ref);
+                        } else {
+                            autogeneratedRecipes.remove(key);
+                            whitelistItems.remove(key);
+                        }
+
+                    }
+                }
+                if (interrupted()) return;
+            }
+
+            final Map<RecipeHandlerRef, RecipeId> recipesCache = new HashMap<>();
+
+            for (Map.Entry<FastKey, RecipeHandlerRef> entry : autogeneratedRecipes.entrySet()) {
+                final RecipeId recipeId = recipesCache
+                        .computeIfAbsent(entry.getValue(), r -> RecipeId.of(r.handler, r.recipeIndex));
+                storage.add(entry.getKey().stack, recipeId);
+            }
+
+            FavoriteRecipes.autoFavorites = storage;
+            updateSubsetVisibility();
+        }
+
+    };
+
+    public static final String FAVORITE_ITEM = "FavoriteItem";
+    private static final FavoriteStorage manualFavorites = new FavoriteStorage();
+    private static FavoriteStorage autoFavorites = new FavoriteStorage();
+    private static File favoriteFile;
+    private static int revision = 0;
+
+    static {
+        API.addSubset("Favorites.Manual", manualFavorites::contains);
+        API.addSubset("Favorites.Generated", stack -> FavoriteRecipes.autoFavorites.contains(stack));
+    }
+
+    private FavoriteRecipes() {}
+
+    public static void load() {
+        String worldPath = "global";
+
+        if (NEIClientConfig.getBooleanSetting("inventory.favorites.worldSpecific")) {
+            worldPath = NEIClientConfig.getWorldPath();
+        }
+
+        final File dir = new File(CommonUtils.getMinecraftDir(), "saves/NEI/" + worldPath);
+
+        if (!dir.exists()) {
+            dir.mkdirs();
+        }
+
+        favoriteFile = new File(dir, "favorites.ini");
+
+        if (!favoriteFile.exists()) {
+            final File globalFavorites = new File(CommonUtils.getMinecraftDir(), "saves/NEI/global/favorites.ini");
+            final File configFavorites = new File(NEIClientConfig.configDir, "favorites.ini");
+            final File defaultFavorites = configFavorites.exists() ? configFavorites : globalFavorites;
+
+            if (defaultFavorites.exists()) {
+                try {
+                    if (favoriteFile.createNewFile()) {
+                        InputStream src = new FileInputStream(defaultFavorites);
+                        OutputStream dst = new FileOutputStream(favoriteFile);
+
+                        IOUtils.copy(src, dst);
+
+                        src.close();
+                        dst.close();
+                    }
+                } catch (IOException e) {}
+            }
+        }
+
+        loadData();
+    }
+
+    private static void loadData() {
+
+        if (favoriteFile == null || !favoriteFile.exists()) {
+            return;
+        }
+
+        List<String> itemStrings;
+
+        try (FileInputStream reader = new FileInputStream(favoriteFile)) {
+            NEIClientConfig.logger.info("Loading favorites from file {}", favoriteFile);
+            itemStrings = IOUtils.readLines(reader, StandardCharsets.UTF_8);
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to load favorites from file {}", favoriteFile, e);
+            return;
+        }
+
+        final JsonParser parser = new JsonParser();
+        boolean hasErrors = false;
+
+        manualFavorites.clear();
+
+        for (String itemStr : itemStrings) {
+
+            if (itemStr.isEmpty() || itemStr.startsWith("#")) {
+                continue;
+            }
+
+            try {
+                JsonObject jsonObject = parser.parse(itemStr).getAsJsonObject();
+
+                if (jsonObject.get("item") != null && jsonObject.get("recipeId") != null) {
+                    final NBTTagCompound itemStackNBT = (NBTTagCompound) NBTJson.toNbt(jsonObject.get("item"));
+                    final RecipeId recipeId = RecipeId.of(jsonObject.getAsJsonObject("recipeId"));
+                    final ItemStack stack = StackInfo.loadFromNBT(itemStackNBT);
+
+                    if (recipeId == null || stack == null) {
+                        continue;
+                    }
+
+                    if (FAVORITE_ITEM.equals(recipeId.getHandlerName()) || RecipeHandlerRef.of(recipeId) != null) {
+                        manualFavorites.add(stack, recipeId);
+                    } else {
+                        hasErrors = true;
+                    }
+
+                }
+
+            } catch (Exception e) {
+                NEIClientConfig.logger.error("Failed to load favorite from json string: {}", itemStr);
+                hasErrors = true;
+            }
+
+        }
+
+        if (hasErrors) {
+
+            NEIClientUtils.backupFile(favoriteFile);
+
+            save();
+        }
+
+        loadAutoGeneratedRecipes();
+    }
+
+    public static RecipeId getGeneratedFavorite(ItemStack stack) {
+        if (NEIClientConfig.favoritesEnabled() && stack != null) {
+            return autoFavorites.getRecipeId(stack);
+        }
+        return null;
+    }
+
+    public static ItemStack getGeneratedFavorite(RecipeId recipeId) {
+        if (NEIClientConfig.favoritesEnabled() && recipeId != null) {
+            return autoFavorites.getItemStack(recipeId);
+        }
+        return null;
+    }
+
+    public static RecipeId getManualFavorite(ItemStack stack) {
+        if (NEIClientConfig.favoritesEnabled() && stack != null) {
+            return manualFavorites.getRecipeId(stack);
+        }
+        return null;
+    }
+
+    public static ItemStack getManualFavorite(RecipeId recipeId) {
+        if (NEIClientConfig.favoritesEnabled() && recipeId != null) {
+            return manualFavorites.getItemStack(recipeId);
+        }
+        return null;
+    }
+
+    public static RecipeId getFavorite(ItemStack stack) {
+
+        if (NEIClientConfig.favoritesEnabled() && stack != null) {
+            final RecipeId recipeId = manualFavorites.getRecipeId(stack);
+            return recipeId != null ? recipeId : autoFavorites.getRecipeId(stack);
+        }
+
+        return null;
+    }
+
+    public static ItemStack getFavorite(RecipeId recipeId) {
+
+        if (NEIClientConfig.favoritesEnabled() && recipeId != null) {
+            final ItemStack stack = manualFavorites.getItemStack(recipeId);
+            return stack != null ? stack : autoFavorites.getItemStack(recipeId);
+        }
+
+        return null;
+    }
+
+    public static int size() {
+        return manualFavorites.size() + autoFavorites.size();
+    }
+
+    public static void reload() {
+        save();
+        load();
+    }
+
+    public static boolean hasManual() {
+        return manualFavorites.size() > 0;
+    }
+
+    public static boolean containsManual(ItemStack stack) {
+        return getManualFavorite(stack) != null;
+    }
+
+    public static boolean contains(ItemStack stack) {
+        return getFavorite(stack) != null;
+    }
+
+    public static void toggleFavoriteItem(ItemStack stack) {
+        if (stack == null) return;
+
+        if (containsManual(stack)) {
+            setFavorite(stack, null);
+        } else {
+            setFavorite(
+                    stack,
+                    RecipeId.of(
+                            stack,
+                            FavoriteRecipes.FAVORITE_ITEM,
+                            Arrays.asList(new ItemStack(Blocks.fire, 1), stack)));
+        }
+    }
+
+    public static void setFavorite(ItemStack stack, RecipeId recipeId) {
+        if (stack == null) return;
+
+        manualFavorites.removeItemStack(stack);
+
+        if (recipeId != null) {
+            manualFavorites.removeRecipeId(recipeId);
+            manualFavorites.add(stack, recipeId);
+        }
+
+        updateSubsetVisibility();
+    }
+
+    public static void loadAutoGeneratedRecipes() {
+        if (ItemList.loadFinished
+                && NEIClientConfig.getBooleanSetting("inventory.favorites.generateSingleRecipeFavorites")) {
+            singleRecipeFavoritesTask.restart();
+        } else {
+            singleRecipeFavoritesTask.stop();
+            autoFavorites.clear();
+
+            updateSubsetVisibility();
+        }
+    }
+
+    protected static void updateSubsetVisibility() {
+        SubsetWidget.updateHiddenItems();
+        FavoriteRecipes.revision++;
+    }
+
+    public static int getRevision() {
+        return revision;
+    }
+
+    public static void save() {
+
+        if (favoriteFile == null) {
+            return;
+        }
+
+        final List<String> strings = new ArrayList<>();
+
+        for (Map.Entry<NBTTagCompound, RecipeId> entry : manualFavorites.getAllFavorites()) {
+
+            try {
+                final JsonObject line = new JsonObject();
+
+                line.add("item", NBTJson.toJsonObject(entry.getKey()));
+                line.add("recipeId", entry.getValue().toJsonObject());
+
+                strings.add(NBTJson.toJson(line));
+            } catch (JsonSyntaxException e) {
+                NEIClientConfig.logger.error("Failed to stringify favorites ItemStack to json string");
+            }
+
+        }
+
+        try (FileOutputStream output = new FileOutputStream(favoriteFile)) {
+            IOUtils.writeLines(strings, "\n", output, StandardCharsets.UTF_8);
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to save favorites list to file {}", favoriteFile, e);
+        }
+    }
+
+}

src/main/java/codechicken/nei/FormattedTextField.java

@@ -0,0 +1,328 @@
+package codechicken.nei;
+
+import net.minecraft.client.gui.FontRenderer;
+import net.minecraft.client.gui.Gui;
+import net.minecraft.client.gui.GuiTextField;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.util.ChatAllowedCharacters;
+import net.minecraft.util.EnumChatFormatting;
+
+import org.lwjgl.opengl.GL11;
+
+public class FormattedTextField extends GuiTextField {
+
+    public static interface TextFormatter {
+
+        TextFormatter DEFAULT = (text) -> text;
+
+        public String format(String text);
+    }
+
+    protected FontRenderer fontRenderer;
+    protected String rawText = "";
+    protected String formattedText = "";
+    protected String placeholder = "";
+    protected boolean editable = true;
+    protected int editableColor = 14737632;
+    protected int notEditableColor = 7368816;
+    protected TextFormatter formatter = TextFormatter.DEFAULT;
+    protected int lineScrollOffset = 0;
+    protected int frame = 0;
+
+    public FormattedTextField(FontRenderer fontRenderer, int xPosition, int yPosition, int width, int height) {
+        super(fontRenderer, xPosition, yPosition, width, height);
+        this.fontRenderer = fontRenderer;
+    }
+
+    public void setFormatter(TextFormatter formatter) {
+        this.formatter = formatter;
+    }
+
+    public TextFormatter getFormatter() {
+        return this.formatter;
+    }
+
+    public void setPlaceholder(String placeholder) {
+        this.placeholder = placeholder;
+    }
+
+    @Override
+    public void updateCursorCounter() {
+        super.updateCursorCounter();
+        ++this.frame;
+    }
+
+    @Override
+    public void setFocused(boolean focus) {
+        if (focus && !this.isFocused()) {
+            this.frame = 0;
+        }
+
+        super.setFocused(focus);
+    }
+
+    @Override
+    public void setText(String rawText) {
+        super.setText(EnumChatFormatting.getTextWithoutFormattingCodes(rawText));
+    }
+
+    @Override
+    public void setSelectionPos(int p_146199_1_) {
+        String text = this.getText();
+        int j = text.length();
+
+        super.setSelectionPos(p_146199_1_);
+
+        p_146199_1_ = Math.max(0, Math.min(p_146199_1_, j));
+
+        if (this.fontRenderer != null) {
+
+            if (this.lineScrollOffset > j) {
+                this.lineScrollOffset = j;
+            }
+
+            int k = this.getWidth();
+            String s = this.fontRenderer.trimStringToWidth(text.substring(this.lineScrollOffset), k);
+            int l = s.length() + this.lineScrollOffset;
+
+            if (p_146199_1_ == this.lineScrollOffset) {
+                this.lineScrollOffset -= this.fontRenderer.trimStringToWidth(text, k, true).length();
+            }
+
+            if (p_146199_1_ > l) {
+                this.lineScrollOffset += p_146199_1_ - l;
+            } else if (p_146199_1_ <= this.lineScrollOffset) {
+                this.lineScrollOffset -= this.lineScrollOffset - p_146199_1_;
+            }
+
+            this.lineScrollOffset = Math.max(0, Math.min(this.lineScrollOffset, j));
+        }
+    }
+
+    @Override
+    public void setTextColor(int p_146193_1_) {
+        super.setTextColor(p_146193_1_);
+        this.editableColor = p_146193_1_;
+    }
+
+    @Override
+    public void setDisabledTextColour(int p_146204_1_) {
+        super.setDisabledTextColour(p_146204_1_);
+        this.notEditableColor = p_146204_1_;
+    }
+
+    @Override
+    public void setEnabled(boolean p_146184_1_) {
+        super.setEnabled(p_146184_1_);
+        this.editable = p_146184_1_;
+    }
+
+    protected boolean beforeWrite(String text) {
+        return true;
+    }
+
+    @Override
+    public void writeText(String textPart) {
+        String newText = "";
+        String substr = ChatAllowedCharacters.filerAllowedCharacters(textPart);
+        int cursorPosition = getCursorPosition();
+        int maxStringLength = getMaxStringLength();
+        String text = getText();
+
+        if (text.isEmpty()) {
+            newText = substr.substring(0, Math.min(maxStringLength, substr.length()));
+            cursorPosition = newText.length();
+        } else {
+            int selectionEnd = getSelectionEnd();
+            String textStart = text.substring(0, Math.min(cursorPosition, selectionEnd));
+            String textEnd = text.substring(Math.max(cursorPosition, selectionEnd));
+            newText = textStart + substr + textEnd;
+
+            if (newText.length() > maxStringLength) {
+                newText = newText.substring(0, maxStringLength);
+            }
+
+            cursorPosition = Math.min(textStart.length() + substr.length(), newText.length());
+        }
+
+        if (beforeWrite(newText)) {
+            setText(newText);
+            setCursorPosition(cursorPosition);
+        }
+    }
+
+    @Override
+    public int getNthWordFromPos(int p_146183_1_, int p_146183_2_) {
+        return this.func_146197_a(p_146183_1_, p_146183_2_, true);
+    }
+
+    @Override
+    public void drawTextBox() {
+
+        if (!this.getVisible()) {
+            return;
+        }
+
+        if (this.getEnableBackgroundDrawing()) {
+            drawRect(
+                    this.xPosition - 1,
+                    this.yPosition - 1,
+                    this.xPosition + this.width + 1,
+                    this.yPosition + this.height + 1,
+                    -6250336);
+            drawRect(
+                    this.xPosition,
+                    this.yPosition,
+                    this.xPosition + this.width,
+                    this.yPosition + this.height,
+                    -16777216);
+        }
+
+        if (!this.rawText.equals(getText())) {
+            this.rawText = getText();
+            this.formattedText = this.formatter.format(this.rawText);
+            if (!EnumChatFormatting.getTextWithoutFormattingCodes(this.formattedText).toLowerCase()
+                    .equals(this.rawText.toLowerCase())) {
+                this.formattedText = this.rawText;
+            }
+        }
+
+        if (!isFocused() && this.formattedText.isEmpty()) {
+            int x = getEnableBackgroundDrawing() ? this.xPosition + 4 : this.xPosition;
+            int y = getEnableBackgroundDrawing() ? this.yPosition + (this.height - 8) / 2 : this.yPosition;
+            this.fontRenderer.drawStringWithShadow(
+                    this.fontRenderer.trimStringToWidth(this.placeholder, this.getWidth()),
+                    x,
+                    y,
+                    this.notEditableColor);
+            return;
+        }
+
+        int firstCharacterIndex = getFormattedTextShift(this.lineScrollOffset);
+        String rawTextClipped = this.fontRenderer
+                .trimStringToWidth(this.rawText.substring(this.lineScrollOffset), this.getWidth());
+        String textClipped = this.formattedText
+                .substring(firstCharacterIndex, getFormattedTextShift(this.lineScrollOffset + rawTextClipped.length()));
+        int cursorPosition = getFormattedTextShift(getCursorPosition());
+        int selectionEnd = getFormattedTextShift(getSelectionEnd());
+
+        int color = this.editable ? this.editableColor : this.notEditableColor;
+        int cursorA = cursorPosition - firstCharacterIndex;
+        int cursorB = selectionEnd - firstCharacterIndex;
+        boolean flag = cursorA >= 0 && cursorA <= textClipped.length();
+        boolean flag1 = isFocused() && this.frame / 6 % 2 == 0 && flag;
+        boolean flag2 = getCursorPosition() < this.rawText.length() || this.rawText.length() >= getMaxStringLength();
+        int x = getEnableBackgroundDrawing() ? this.xPosition + 4 : this.xPosition;
+        int y = getEnableBackgroundDrawing() ? this.yPosition + (this.height - 8) / 2 : this.yPosition;
+        int x2 = x;
+
+        if (cursorB > textClipped.length()) {
+            cursorB = textClipped.length();
+        }
+
+        if (textClipped.length() > 0) {
+            String s1 = flag ? textClipped.substring(0, cursorA) : textClipped;
+            String colorA = getPreviousColor(firstCharacterIndex);
+            x2 = this.fontRenderer.drawStringWithShadow(colorA + s1, x, y, color);
+        }
+
+        int k1 = x2;
+
+        if (!flag) {
+            k1 = cursorA > 0 ? x + this.width : x;
+        } else if (flag2) {
+            k1 = x2 - 1;
+            --x2;
+        }
+
+        if (textClipped.length() > 0 && flag && cursorA < textClipped.length()) {
+            String colorB = getPreviousColor(firstCharacterIndex + cursorA);
+            this.fontRenderer.drawStringWithShadow(colorB + textClipped.substring(cursorA), x2, y, color);
+        }
+
+        if (flag1) {
+            if (flag2) {
+                Gui.drawRect(k1, y - 1, k1 + 1, y + 1 + this.fontRenderer.FONT_HEIGHT, -3092272);
+            } else {
+                this.fontRenderer.drawStringWithShadow("_", k1, y, color);
+            }
+        }
+
+        if (cursorB != cursorA) {
+            int l1 = x + this.fontRenderer.getStringWidth(textClipped.substring(0, cursorB));
+            drawCursorVertical(k1, y - 1, l1 - 1, y + 1 + this.fontRenderer.FONT_HEIGHT);
+        }
+    }
+
+    private void drawCursorVertical(int x1, int y1, int x2, int y2) {
+        int i1;
+
+        if (x1 < x2) {
+            i1 = x1;
+            x1 = x2;
+            x2 = i1;
+        }
+
+        if (y1 < y2) {
+            i1 = y1;
+            y1 = y2;
+            y2 = i1;
+        }
+
+        if (x2 > this.xPosition + this.width) {
+            x2 = this.xPosition + this.width;
+        }
+
+        if (x1 > this.xPosition + this.width) {
+            x1 = this.xPosition + this.width;
+        }
+
+        Tessellator tessellator = Tessellator.instance;
+        GL11.glColor4f(0.0F, 0.0F, 1.0F, 1.0F);
+        GL11.glDisable(GL11.GL_TEXTURE_2D);
+        GL11.glEnable(GL11.GL_COLOR_LOGIC_OP);
+        GL11.glLogicOp(GL11.GL_OR_REVERSE);
+        tessellator.startDrawingQuads();
+        tessellator.addVertex((double) x1, (double) y2, 0.0D);
+        tessellator.addVertex((double) x2, (double) y2, 0.0D);
+        tessellator.addVertex((double) x2, (double) y1, 0.0D);
+        tessellator.addVertex((double) x1, (double) y1, 0.0D);
+        tessellator.draw();
+        GL11.glDisable(GL11.GL_COLOR_LOGIC_OP);
+        GL11.glEnable(GL11.GL_TEXTURE_2D);
+    }
+
+    private int getFormattedTextShift(int position) {
+        int shift = 0;
+
+        for (int i = 0; i < position; i++) {
+            while (this.formattedText.length() > i + shift + 1 && this.formattedText.charAt(i + shift) == '\u00a7'
+                    && isFormattingCode(this.formattedText.charAt(i + shift + 1))) {
+                shift += 2;
+            }
+        }
+
+        return Math.min(position + shift, this.formattedText.length());
+    }
+
+    private static boolean isFormattingCode(char c) {
+        return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f')
+                || (c >= 'k' && c <= 'o')
+                || c == 'r'
+                || (c >= 'A' && c <= 'F')
+                || (c >= 'K' && c <= 'O')
+                || c == 'R';
+    }
+
+    private String getPreviousColor(int position) {
+        position = Math.min(position, this.formattedText.length() - 1);
+        while (position >= 0) {
+            if (this.formattedText.charAt(position) == '\u00a7') {
+                return this.formattedText.substring(position, position + 2);
+            }
+            position--;
+        }
+        return "";
+    }
+
+}

src/main/java/codechicken/nei/GridOverlapScanner.java

@@ -0,0 +1,188 @@
+package codechicken.nei;
+
+import java.lang.ref.WeakReference;
+import java.util.Arrays;
+import java.util.function.Predicate;
+
+import net.minecraft.client.gui.inventory.GuiContainer;
+
+import codechicken.lib.vec.Rectangle4i;
+
+final class GridOverlapScanner {
+
+    private static boolean scanRequested = true;
+    private static boolean scanFrame = true;
+    private static boolean wasShowTooltip = true;
+    private static WeakReference<GuiContainer> lastGui = new WeakReference<>(null);
+
+    private boolean invalidated = true;
+
+    private final Rectangle4i rect = new Rectangle4i();
+    private boolean[] checked = new boolean[0];
+    private int[] queue = new int[0];
+    private int tail;
+
+    private Predicate<Rectangle4i> isHidden;
+    private boolean[] hidden;
+    private int hiddenCount;
+    private int left;
+    private int top;
+    private int slotSize;
+    private int columns;
+
+    public static void requestScan() {
+        scanRequested = true;
+    }
+
+    public static void beginFrame(GuiContainer gui, boolean shouldShowTooltip) {
+
+        if (wasShowTooltip != shouldShowTooltip) {
+            scanRequested = true;
+        }
+
+        wasShowTooltip = shouldShowTooltip;
+
+        if (lastGui.get() != gui) {
+            lastGui = new WeakReference<>(gui);
+            scanRequested = true;
+        }
+
+        scanFrame = scanRequested;
+        scanRequested = false;
+    }
+
+    public static boolean isScanFrame() {
+        return scanFrame;
+    }
+
+    public void invalidate() {
+        this.invalidated = true;
+    }
+
+    public boolean shouldRefresh() {
+        final boolean refresh = this.invalidated || scanFrame;
+        this.invalidated = false;
+        return refresh;
+    }
+
+    public int scan(Predicate<Rectangle4i> isHidden, int left, int top, int slotSize, int rows, int columns,
+            boolean seedLeft, boolean seedRight, boolean[] hidden) {
+        final int size = rows * columns;
+
+        if (this.checked.length < size) {
+            this.checked = new boolean[size];
+            this.queue = new int[size];
+        } else {
+            Arrays.fill(this.checked, 0, size, false);
+        }
+
+        this.isHidden = isHidden;
+        this.hidden = hidden;
+        this.hiddenCount = 0;
+        this.tail = 0;
+        this.left = left;
+        this.top = top;
+        this.slotSize = slotSize;
+        this.columns = columns;
+
+        for (int r = 0; r < rows; r++) {
+            if (seedLeft) {
+                probe(r, 0);
+            }
+            if (seedRight) {
+                probe(r, columns - 1);
+            }
+        }
+
+        for (int head = 0; head < this.tail; head++) {
+            final int row = this.queue[head] / columns;
+            final int column = this.queue[head] % columns;
+
+            for (int r = Math.max(0, row - 1); r <= Math.min(rows - 1, row + 1); r++) {
+                for (int c = Math.max(0, column - 1); c <= Math.min(columns - 1, column + 1); c++) {
+                    probe(r, c);
+                }
+            }
+        }
+
+        for (int r = 0; r < rows; r++) {
+            for (int c = 0; c < columns; c++) {
+                if (this.checked[r * columns + c]) {
+                    continue;
+                }
+
+                int c1 = c;
+                while (c1 + 1 < columns && !this.checked[r * columns + c1 + 1]) {
+                    c1++;
+                }
+
+                int r1 = r;
+                while (r1 + 1 < rows && isUnchecked(r1 + 1, c, c1)) {
+                    r1++;
+                }
+
+                scanArea(r, r1, c, c1);
+                c = c1;
+            }
+        }
+
+        this.isHidden = null;
+        this.hidden = null;
+
+        return this.hiddenCount;
+    }
+
+    private void probe(int row, int column) {
+        final int idx = row * this.columns + column;
+
+        if (!this.checked[idx]) {
+            this.checked[idx] = true;
+
+            if (test(row, row, column, column)) {
+                this.hidden[idx] = true;
+                this.queue[this.tail++] = idx;
+                this.hiddenCount++;
+            }
+        }
+    }
+
+    private void scanArea(int r0, int r1, int c0, int c1) {
+
+        if (!test(r0, r1, c0, c1)) {
+            for (int r = r0; r <= r1; r++) {
+                Arrays.fill(this.checked, r * this.columns + c0, r * this.columns + c1 + 1, true);
+            }
+        } else if (r0 == r1 && c0 == c1) {
+            this.checked[r0 * this.columns + c0] = true;
+            this.hidden[r0 * this.columns + c0] = true;
+            this.hiddenCount++;
+        } else if (r1 - r0 >= c1 - c0) {
+            final int mid = (r0 + r1) / 2;
+            scanArea(r0, mid, c0, c1);
+            scanArea(mid + 1, r1, c0, c1);
+        } else {
+            final int mid = (c0 + c1) / 2;
+            scanArea(r0, r1, c0, mid);
+            scanArea(r0, r1, mid + 1, c1);
+        }
+    }
+
+    private boolean isUnchecked(int row, int c0, int c1) {
+        for (int c = c0; c <= c1; c++) {
+            if (this.checked[row * this.columns + c]) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    private boolean test(int r0, int r1, int c0, int c1) {
+        this.rect.set(
+                this.left + c0 * this.slotSize,
+                this.top + r0 * this.slotSize,
+                (c1 - c0 + 1) * this.slotSize,
+                (r1 - r0 + 1) * this.slotSize);
+        return this.isHidden.test(this.rect);
+    }
+
+}

src/main/java/codechicken/nei/GuiEnchantmentModifier.java

@@ -1,17 +1,19 @@
 package codechicken.nei;
 
-import codechicken.lib.render.CCRenderState;
+import static codechicken.nei.NEIClientUtils.translate;
+
 import net.minecraft.client.gui.FontRenderer;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.world.World;
+
 import org.lwjgl.opengl.GL11;
 
-import static codechicken.nei.NEIClientUtils.translate;
+import codechicken.lib.render.CCRenderState;
+
+public class GuiEnchantmentModifier extends GuiContainer {
 
-public class GuiEnchantmentModifier extends GuiContainer
-{
     final ContainerEnchantmentModifier container;
 
     public GuiEnchantmentModifier(InventoryPlayer inventoryplayer, World world, int i, int j, int k) {
@@ -22,8 +24,8 @@ public class GuiEnchantmentModifier extends GuiContainer
 
     @Override
     protected void drawGuiContainerForegroundLayer(int par1, int par2) {
-        fontRendererObj.drawString(translate("enchant"), 12, 6, 0x404040);
-        fontRendererObj.drawString(translate("enchant.level"), 19, 20, 0x404040);
+        fontRendererObj.drawString(translate("enchant"), 12, 6, ColorUtils.textGray.getColor());
+        fontRendererObj.drawString(translate("enchant.level"), 19, 20, ColorUtils.textGray.getColor());
     }
 
     protected void drawGuiContainerBackgroundLayer(float f, int i, int j) {
@@ -37,7 +39,11 @@ public class GuiEnchantmentModifier extends GuiContainer
         container.drawScrollBar(this);
 
         String levelstring = "" + container.level;
-        fontRendererObj.drawString(levelstring, 33 - fontRendererObj.getStringWidth(levelstring) / 2, 34, 0xFF606060);
+        fontRendererObj.drawString(
+                levelstring,
+                33 - fontRendererObj.getStringWidth(levelstring) / 2,
+                34,
+                ColorUtils.textLightGray.getColor());
 
         GL11.glTranslatef(-guiLeft, -guiTop, 0);
     }
@@ -60,7 +66,6 @@ public class GuiEnchantmentModifier extends GuiContainer
 
     public static void toggleEnchantmentValidation() {
         NEIClientConfig.world.nbt.setBoolean("validateenchantments", !validateEnchantments());
-        NEIClientConfig.world.saveNBT();
     }
 
     protected void actionPerformed(GuiButton guibutton) {
@@ -77,8 +82,8 @@ public class GuiEnchantmentModifier extends GuiContainer
 
     private void changeLevel(int i) {
         container.level += i;
-        ((GuiButton) buttonList.get(0)).enabled = container.level != 1;
-        ((GuiButton) buttonList.get(1)).enabled = container.level != 10;
+        buttonList.get(0).enabled = container.level != 1;
+        buttonList.get(1).enabled = container.level != 10;
     }
 
     protected void mouseClicked(int i, int j, int k) {

src/main/java/codechicken/nei/GuiExtendedCreativeInv.java

@@ -1,18 +1,23 @@
 package codechicken.nei;
 
-import codechicken.lib.render.CCRenderState;
-import codechicken.nei.api.INEIGuiHandler;
-import codechicken.nei.api.TaggedInventoryArea;
-import net.minecraft.client.gui.inventory.GuiContainer;
-import net.minecraft.inventory.Container;
-import net.minecraft.item.ItemStack;
-import org.lwjgl.opengl.GL11;
-
 import java.util.Collections;
 import java.util.List;
 
-public class GuiExtendedCreativeInv extends GuiContainer implements INEIGuiHandler
-{
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.inventory.Container;
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.ItemStack;
+
+import org.lwjgl.opengl.GL11;
+
+import codechicken.lib.render.CCRenderState;
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.AutoFocusWidget.INEIAutoFocusSearchEnable;
+import codechicken.nei.api.INEIGuiHandler;
+import codechicken.nei.api.TaggedInventoryArea;
+
+public class GuiExtendedCreativeInv extends GuiContainer implements INEIGuiHandler, INEIAutoFocusSearchEnable {
+
     public GuiExtendedCreativeInv(Container par1Container) {
         super(par1Container);
         ySize = 198;
@@ -51,6 +56,17 @@ public class GuiExtendedCreativeInv extends GuiContainer implements INEIGuiHandl
 
     @Override
     public boolean hideItemPanelSlot(GuiContainer gui, int x, int y, int w, int h) {
-        return false;
+        return (new Rectangle4i(guiLeft - 15, guiTop + 18, 18, 18 * 4 + 4)).intersects(new Rectangle4i(x, y, w, h));
+    }
+
+    @Override
+    protected void handleMouseClick(Slot slotIn, int slotId, int clickedButton, int clickType) {
+
+        // Hack for armor slots, because they are outside the container
+        if (slotIn != null && clickType == 4 && slotIn.xDisplayPosition < 0) {
+            clickType = 0;
+        }
+
+        super.handleMouseClick(slotIn, slotId, clickedButton, clickType);
     }
 }

src/main/java/codechicken/nei/GuiNEIButton.java

@@ -4,38 +4,57 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.FontRenderer;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.util.ResourceLocation;
+
 import org.lwjgl.opengl.GL11;
 
-public class GuiNEIButton extends GuiButton
-{
+import codechicken.nei.drawable.DrawableBuilder;
+import codechicken.nei.drawable.DrawableResource;
+
+public class GuiNEIButton extends GuiButton {
+
     protected static final ResourceLocation guiTex = new ResourceLocation("textures/gui/widgets.png");
-    
-    public GuiNEIButton(int i, int j, int k, int l, int i1, String s)
-    {
+    private static final DrawableResource[] BACKGROUNDS = new DrawableResource[3];
+
+    static {
+        for (int state = 0; state < BACKGROUNDS.length; state++) {
+            BACKGROUNDS[state] = new DrawableBuilder(guiTex, 0, 46 + state * 20, 200, 20).setSlices(2, 2, 2, 2).build();
+        }
+    }
+
+    public GuiNEIButton(int i, int j, int k, int l, int i1, String s) {
         super(i, j, k, l, i1, s);
     }
-    
-    public void drawButton(Minecraft minecraft, int i, int j)
-    {
-        if(!visible)
-            return;
 
-        FontRenderer fontrenderer = minecraft.fontRenderer;
-        minecraft.renderEngine.bindTexture(guiTex);
+    protected DrawableResource getBackground(int mouseX, int mouseY, boolean mouseOver) {
+        return BACKGROUNDS[getHoverState(mouseOver)];
+    }
+
+    public void drawButton(Minecraft minecraft, int x, int y) {
+        if (!visible) return;
+
+        boolean mouseOver = x >= xPosition && y >= yPosition && x < xPosition + width && y < yPosition + height;
+
         GL11.glColor4f(1, 1, 1, 1);
-        boolean flag = i >= xPosition && j >= yPosition && i < xPosition + width && j < yPosition + height;
-        int k = getHoverState(flag);
-        drawTexturedModalRect(xPosition, yPosition, 0, 46 + k * 20, width / 2, height / 2);//top left
-        drawTexturedModalRect(xPosition + width / 2, yPosition, 200 - width / 2, 46 + k * 20, width / 2, height / 2);//top right
-        drawTexturedModalRect(xPosition, yPosition + height / 2, 0, 46 + k * 20 + 20 - height / 2, width / 2, height / 2);//bottom left
-        drawTexturedModalRect(xPosition + width / 2, yPosition + height / 2, 200 - width / 2, 46 + k * 20 + 20 - height / 2, width / 2, height / 2);//bottom right
-        mouseDragged(minecraft, i, j);
-        
-        if(!enabled)
-            drawCenteredString(fontrenderer, displayString, xPosition + width / 2, yPosition + (height - 8) / 2, 0xffa0a0a0);
-        else if(flag)
-            drawCenteredString(fontrenderer, displayString, xPosition + width / 2, yPosition + (height - 8) / 2, 0xffffa0);
-        else
-            drawCenteredString(fontrenderer, displayString, xPosition + width / 2, yPosition + (height - 8) / 2, 0xe0e0e0);
+        getBackground(x, y, mouseOver).draw(xPosition, yPosition, width, height);
+        mouseDragged(minecraft, x, y);
+        drawContent(minecraft, x, y, mouseOver);
+    }
+
+    protected int getTextColour(boolean mouseOver) {
+
+        if (!enabled) {
+            return ColorUtils.buttonLabelInactive.getColor();
+        } else if (mouseOver) {
+            return ColorUtils.buttonLabelHover.getColor();
+        }
+
+        return ColorUtils.buttonLabelNormal.getColor();
+    }
+
+    protected void drawContent(Minecraft minecraft, int x, int y, boolean mouseOver) {
+        FontRenderer fontrenderer = minecraft.fontRenderer;
+        int color = getTextColour(mouseOver);
+
+        drawCenteredString(fontrenderer, displayString, xPosition + width / 2, yPosition + (height - 8) / 2, color);
     }
 }

src/main/java/codechicken/nei/GuiPotionCreator.java

@@ -1,37 +1,37 @@
 package codechicken.nei;
 
+import static codechicken.nei.NEIClientUtils.translate;
+
+import java.awt.Dimension;
+import java.util.ArrayList;
+
+import net.minecraft.entity.player.InventoryPlayer;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagList;
+import net.minecraft.potion.Potion;
+import net.minecraft.potion.PotionEffect;
+import net.minecraft.util.StatCollector;
+
+import org.lwjgl.opengl.GL11;
+
 import codechicken.core.gui.GuiCCButton;
 import codechicken.core.gui.GuiCCTextField;
 import codechicken.core.gui.GuiScrollSlot;
 import codechicken.core.inventory.GuiContainerWidget;
 import codechicken.lib.render.CCRenderState;
 import codechicken.lib.render.FontUtils;
-import net.minecraft.entity.player.InventoryPlayer;
-import net.minecraft.item.ItemStack;
-import net.minecraft.nbt.NBTTagList;
-import net.minecraft.potion.Potion;
-import net.minecraft.potion.PotionEffect;
-import net.minecraft.util.StatCollector;
-import org.lwjgl.opengl.GL11;
 
-import java.awt.Dimension;
-import java.util.ArrayList;
+public class GuiPotionCreator extends GuiContainerWidget {
 
-import static codechicken.nei.NEIClientUtils.translate;
+    public class GuiSlotPotionEffects extends GuiScrollSlot {
 
-public class GuiPotionCreator extends GuiContainerWidget
-{
-    public class GuiSlotPotionEffects extends GuiScrollSlot
-    {
         public int selectedslot = -1;
         public boolean enabled = true;
         private final ArrayList<Potion> validPotions = new ArrayList<>();
 
         public GuiSlotPotionEffects(int x, int y) {
             super(x, y, 108, 76);
-            for (Potion p : Potion.potionTypes)
-                if (p != null)
-                    validPotions.add(p);
+            for (Potion p : Potion.potionTypes) if (p != null) validPotions.add(p);
             setSmoothScroll(false);
             setMargins(0, 0, 0, 0);
         }
@@ -48,8 +48,7 @@ public class GuiPotionCreator extends GuiContainerWidget
         }
 
         @Override
-        public void drawOverlay(float frame) {
-        }
+        public void drawOverlay(float frame) {}
 
         @Override
         public int scrollbarGuideAlignment() {
@@ -69,13 +68,18 @@ public class GuiPotionCreator extends GuiContainerWidget
             Potion potion = validPotions.get(slot);
             PotionEffect effect = getEffect(potion.id);
             boolean blank = effect == null;
-            if (effect == null)
-                effect = new PotionEffect(potion.id, 1200, 0);
+            if (effect == null) effect = new PotionEffect(potion.id, 1200, 0);
             int shade = selectedslot == slot ? 2 : blank ? 1 : 0;
 
             CCRenderState.changeTexture("textures/gui/container/enchanting_table.png");
             drawTexturedModalRect(x, y, 0, 166 + getSlotHeight(slot) * shade, width - 30, getSlotHeight(slot));
-            drawTexturedModalRect(x + width - 30, y, width - 23, 166 + getSlotHeight(slot) * shade, 30, getSlotHeight(slot));
+            drawTexturedModalRect(
+                    x + width - 30,
+                    y,
+                    width - 23,
+                    166 + getSlotHeight(slot) * shade,
+                    30,
+                    getSlotHeight(slot));
 
             if (potion.hasStatusIcon()) {
                 CCRenderState.changeTexture("textures/gui/container/inventory.png");
@@ -104,8 +108,7 @@ public class GuiPotionCreator extends GuiContainerWidget
                 NBTTagList potionTagList = potion.getTagCompound().getTagList("CustomPotionEffects", 10);
                 for (int i = 0; i < potionTagList.tagCount(); i++) {
                     PotionEffect effect = PotionEffect.readCustomPotionEffectFromNBT(potionTagList.getCompoundTagAt(i));
-                    if (effect.getPotionID() == id)
-                        return effect;
+                    if (effect.getPotionID() == id) return effect;
                 }
             }
             return null;
@@ -118,8 +121,7 @@ public class GuiPotionCreator extends GuiContainerWidget
 
         @Override
         protected void slotClicked(int slot, int button, int mx, int my, int count) {
-            if (!enabled)
-                return;
+            if (!enabled) return;
 
             if (button == 0) {
                 select(slot);
@@ -145,19 +147,16 @@ public class GuiPotionCreator extends GuiContainerWidget
         }
 
         public void setEnabled(boolean b) {
-            if (b == enabled)
-                return;
+            if (b == enabled) return;
             enabled = b;
-            if (!enabled)
-                deselect();
+            if (!enabled) deselect();
         }
 
         private void select(int slot) {
             selectedslot = slot;
             durationField.setEnabled(true);
             PotionEffect effect = getEffect(validPotions.get(slot).id);
-            if (effect == null)
-                effect = new PotionEffect(validPotions.get(slot).id, 1200, 0);
+            if (effect == null) effect = new PotionEffect(validPotions.get(slot).id, 1200, 0);
             durationField.setDurationTicks(effect.getDuration());
             amplifier = effect.getAmplifier();
             validateInputButtons();
@@ -175,8 +174,8 @@ public class GuiPotionCreator extends GuiContainerWidget
         }
     }
 
-    public class GuiDurationField extends GuiCCTextField
-    {
+    public class GuiDurationField extends GuiCCTextField {
+
         private String baseValue;
 
         public GuiDurationField(int x, int y, int width, int height) {
@@ -190,27 +189,22 @@ public class GuiPotionCreator extends GuiContainerWidget
             i /= 20;
             String minutes = Integer.toString(i / 60);
             String seconds = Integer.toString(i % 60);
-            if (seconds.length() == 1)
-                seconds = '0' + seconds;
+            if (seconds.length() == 1) seconds = '0' + seconds;
             setText(minutes + seconds);
         }
 
         @Override
         public void setEnabled(boolean b) {
             super.setEnabled(b);
-            if (!isEnabled())
-                setText("100");
+            if (!isEnabled()) setText("100");
         }
 
         @Override
         public void onFocusChanged() {
-            if (isFocused())
-                baseValue = getText();
+            if (isFocused()) baseValue = getText();
             else {
-                if (!validateValue())
-                    setText(baseValue);
-                else
-                    applyEffect();
+                if (!validateValue()) setText(baseValue);
+                else applyEffect();
             }
         }
 
@@ -231,7 +225,8 @@ public class GuiPotionCreator extends GuiContainerWidget
         @Override
         public void drawText() {
             String s = getText();
-            String seconds = s.substring(Math.max(0, s.length() - 2), Math.max(0, s.length() - 2) + Math.min(s.length(), 2));
+            String seconds = s
+                    .substring(Math.max(0, s.length() - 2), Math.max(0, s.length() - 2) + Math.min(s.length(), 2));
             String minutes = s.length() < 3 ? "" : s.substring(0, s.length() - 2);
             int ty = y + height / 2 - 4;
             int tcolour = getTextColour();
@@ -294,10 +289,10 @@ public class GuiPotionCreator extends GuiContainerWidget
         CCRenderState.changeTexture("nei:textures/gui/potion.png");
         drawTexturedModalRect(0, 0, 0, 0, xSize, ySize);
 
-        FontUtils.drawCenteredString(translate("potion.favourite"), xSize / 2, 4, 0x404040);
-        fontRendererObj.drawString(translate("potion.duration"), 12, 40, 0x404040);
-        fontRendererObj.drawString(translate("potion.level"), 19, 73, 0x404040);
-        FontUtils.drawCenteredString(translateAmplifier(amplifier), 33, 86, 0xFF606060);
+        FontUtils.drawCenteredString(translate("potion.favourite"), xSize / 2, 4, ColorUtils.textGray.getColor());
+        fontRendererObj.drawString(translate("potion.duration"), 12, 40, ColorUtils.textGray.getColor());
+        fontRendererObj.drawString(translate("potion.level"), 19, 73, ColorUtils.textGray.getColor());
+        FontUtils.drawCenteredString(translateAmplifier(amplifier), 33, 86, ColorUtils.textGray.getColor());
     }
 
     @Override
@@ -316,10 +311,8 @@ public class GuiPotionCreator extends GuiContainerWidget
 
     @Override
     public void actionPerformed(String ident, Object... params) {
-        if (ident.equals("ampDown"))
-            amplifier--;
-        else if (ident.equals("ampUp"))
-            amplifier++;
+        if (ident.equals("ampDown")) amplifier--;
+        else if (ident.equals("ampUp")) amplifier++;
         applyEffect();
         validateInputButtons();
     }

src/main/java/codechicken/nei/HUDRenderer.java

@@ -1,32 +1,34 @@
 package codechicken.nei;
 
-import codechicken.lib.config.ConfigTag;
-import codechicken.nei.KeyManager.IKeyStateTracker;
-import codechicken.nei.api.ItemInfo;
-import codechicken.nei.guihook.GuiContainerManager;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.RenderHelper;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.MovingObjectPosition.MovingObjectType;
-import net.minecraft.world.World;
-import org.lwjgl.opengl.GL11;
-import org.lwjgl.opengl.GL12;
-
-import java.awt.Dimension;
-import java.awt.Point;
-import java.util.ArrayList;
-import java.util.List;
-
 import static codechicken.lib.gui.GuiDraw.displaySize;
 import static codechicken.lib.gui.GuiDraw.drawString;
 import static codechicken.lib.gui.GuiDraw.drawTooltipBox;
 import static codechicken.lib.gui.GuiDraw.getStringWidth;
 
-public class HUDRenderer implements IKeyStateTracker
-{
+import java.awt.Dimension;
+import java.awt.Point;
+import java.util.List;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.RenderHelper;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.MovingObjectPosition.MovingObjectType;
+import net.minecraft.world.World;
+
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL12;
+
+import codechicken.lib.config.ConfigTag;
+import codechicken.nei.KeyManager.IKeyStateTracker;
+import codechicken.nei.api.ItemInfo;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.recipe.StackInfo;
+
+public class HUDRenderer implements IKeyStateTracker {
+
     @Override
     public void tickKeyStates() {
-        if (KeyManager.keyStates.get("world.highlight_tips").down) {
+        if (KeyManager.isPressed("world.highlight_tips")) {
             ConfigTag tag = NEIClientConfig.getSetting("world.highlight_tips");
             tag.setBooleanValue(!tag.getBooleanValue());
         }
@@ -34,37 +36,26 @@ public class HUDRenderer implements IKeyStateTracker
 
     public static void renderOverlay() {
         Minecraft mc = Minecraft.getMinecraft();
-        if (mc.currentScreen == null &&
-                mc.theWorld != null &&
-                !mc.gameSettings.keyBindPlayerList.getIsKeyPressed() &&
-                NEIClientConfig.getBooleanSetting("world.highlight_tips") &&
-                mc.objectMouseOver != null &&
-                mc.objectMouseOver.typeOfHit == MovingObjectType.BLOCK) {
+        if (mc.currentScreen == null && mc.theWorld != null
+                && !mc.gameSettings.keyBindPlayerList.getIsKeyPressed()
+                && NEIClientConfig.getBooleanSetting("world.highlight_tips")
+                && mc.objectMouseOver != null
+                && mc.objectMouseOver.typeOfHit == MovingObjectType.BLOCK) {
             World world = mc.theWorld;
-            ArrayList<ItemStack> items = ItemInfo.getIdentifierItems(world, mc.thePlayer, mc.objectMouseOver);
-            if (items.isEmpty())
-                return;
+            final List<ItemStack> items = ItemInfo.getIdentifierItems(world, mc.thePlayer, mc.objectMouseOver);
 
-            int minDamage = Integer.MAX_VALUE;
-            ItemStack stack = null;
-            for(ItemStack astack : items) {
-                if(astack.getItem() != null && astack.getItemDamage() < minDamage) {
-                    stack = astack;
-                    minDamage = stack.getItemDamage();
-                }
-            }
+            if (items.isEmpty()) return;
 
+            final ItemStack stack = StackInfo.getItemStackWithMinimumDamage(items.toArray(new ItemStack[0]));
             renderOverlay(stack, ItemInfo.getText(stack, world, mc.thePlayer, mc.objectMouseOver), getPositioning());
         }
     }
 
     public static void renderOverlay(ItemStack stack, List<String> textData, Point pos) {
-        if((stack == null || stack.getItem() == null) && textData.isEmpty())
-            return;
+        if ((stack == null || stack.getItem() == null) && textData.isEmpty()) return;
 
         int w = 0;
-        for (String s : textData)
-            w = Math.max(w, getStringWidth(s) + 29);
+        for (String s : textData) w = Math.max(w, getStringWidth(s) + 29);
         int h = Math.max(24, 10 + 10 * textData.size());
 
         Dimension size = displaySize();
@@ -85,8 +76,7 @@ public class HUDRenderer implements IKeyStateTracker
         RenderHelper.enableGUIStandardItemLighting();
         GL11.glEnable(GL12.GL_RESCALE_NORMAL);
 
-        if (stack != null && stack.getItem() != null)
-            GuiContainerManager.drawItem(x + 5, y + h / 2 - 8, stack);
+        if (stack != null && stack.getItem() != null) GuiContainerManager.drawItem(x + 5, y + h / 2 - 8, stack);
     }
 
     private static Point getPositioning() {
@@ -98,4 +88,4 @@ public class HUDRenderer implements IKeyStateTracker
     public static void load() {
         KeyManager.trackers.add(new HUDRenderer());
     }
-}
+}

src/main/java/codechicken/nei/HeldItemHandler.java

@@ -0,0 +1,114 @@
+package codechicken.nei;
+
+import static codechicken.nei.NEIClientUtils.translate;
+
+import java.util.List;
+
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.util.EnumChatFormatting;
+
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.guihook.IContainerInputHandler;
+import codechicken.nei.guihook.IContainerTooltipHandler;
+import codechicken.nei.recipe.AutoCraftingManager;
+
+public class HeldItemHandler implements IContainerInputHandler, IContainerTooltipHandler {
+
+    protected HeldItemHandler() {
+
+    }
+
+    public static void load() {
+        HeldItemHandler instance = new HeldItemHandler();
+        GuiContainerManager.addInputHandler(instance);
+        GuiContainerManager.addTooltipHandler(instance);
+    }
+
+    protected boolean contains(int mousex, int mousey) {
+        return NEIClientUtils.getHeldItem() != null && !ItemPanels.bookmarkPanel.inEditingState()
+                && !AutoCraftingManager.processing()
+                && (ItemPanels.bookmarkPanel.contains(mousex, mousey)
+                        || ItemPanels.itemPanel.containsWithSubpanels(mousex, mousey));
+    }
+
+    @Override
+    public boolean mouseClicked(GuiContainer gui, int mousex, int mousey, int button) {
+
+        if (contains(mousex, mousey)) {
+
+            if (NEIClientConfig.canPerformAction("delete") && NEIClientConfig.canPerformAction("item")
+                    || NEIClientUtils.mc().playerController.isInCreativeMode()) {
+                if (button == 1) {
+                    NEIClientUtils.decreaseSlotStack(-999);
+                } else {
+                    NEIClientUtils.deleteHeldItem();
+                }
+            } else {
+                NEIClientUtils.dropHeldItem();
+            }
+
+            return true;
+        }
+
+        return false;
+    }
+
+    @Override
+    public boolean keyTyped(GuiContainer gui, char keyChar, int keyCode) {
+
+        return false;
+    }
+
+    @Override
+    public boolean lastKeyTyped(GuiContainer gui, char keyChar, int keyID) {
+
+        return false;
+    }
+
+    @Override
+    public boolean mouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
+
+        return false;
+    }
+
+    @Override
+    public void onKeyTyped(GuiContainer gui, char keyChar, int keyID) {
+
+    }
+
+    @Override
+    public void onMouseClicked(GuiContainer gui, int mousex, int mousey, int button) {
+
+    }
+
+    @Override
+    public void onMouseDragged(GuiContainer gui, int mousex, int mousey, int button, long heldTime) {
+
+    }
+
+    @Override
+    public void onMouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
+
+    }
+
+    @Override
+    public void onMouseUp(GuiContainer gui, int mousex, int mousey, int button) {
+
+    }
+
+    @Override
+    public List<String> handleTooltip(GuiContainer gui, int mousex, int mousey, List<String> currenttip) {
+
+        if (contains(mousex, mousey)) {
+            currenttip.clear();
+
+            if (NEIClientConfig.canPerformAction("delete") && NEIClientConfig.canPerformAction("item")
+                    || NEIClientUtils.mc().playerController.isInCreativeMode()) {
+                currenttip.add(EnumChatFormatting.RED + translate("itempanel.deleteItem"));
+            }
+        }
+
+        return currenttip;
+    }
+
+}

src/main/java/codechicken/nei/IMCForNEI.java

@@ -0,0 +1,161 @@
+package codechicken.nei;
+
+import net.minecraft.client.gui.GuiRepair;
+import net.minecraft.client.gui.inventory.GuiBrewingStand;
+import net.minecraft.client.gui.inventory.GuiCrafting;
+import net.minecraft.client.gui.inventory.GuiFurnace;
+import net.minecraft.client.gui.inventory.GuiInventory;
+import net.minecraft.nbt.NBTTagCompound;
+
+import codechicken.nei.api.API;
+import codechicken.nei.recipe.BrewingOverlayHandler;
+import codechicken.nei.recipe.BrewingRecipeHandler;
+import codechicken.nei.recipe.DefaultOverlayHandler;
+import codechicken.nei.recipe.FireworkRecipeHandler;
+import codechicken.nei.recipe.FuelRecipeHandler;
+import codechicken.nei.recipe.FurnaceRecipeHandler;
+import codechicken.nei.recipe.InformationHandler;
+import codechicken.nei.recipe.ProfilerRecipeHandler;
+import codechicken.nei.recipe.RepairOverlayHandler;
+import codechicken.nei.recipe.RepairRecipeHandler;
+import codechicken.nei.recipe.ShapedRecipeHandler;
+import codechicken.nei.recipe.ShapelessRecipeHandler;
+import cpw.mods.fml.common.event.FMLInterModComms;
+
+public class IMCForNEI {
+
+    public static void IMCSender() {
+
+        API.registerRecipeHandler(new ShapedRecipeHandler());
+        API.registerUsageHandler(new ShapedRecipeHandler());
+        sendHandler("codechicken.nei.recipe.ShapedRecipeHandler", "minecraft:crafting_table");
+
+        API.registerRecipeHandler(new ShapelessRecipeHandler());
+        API.registerUsageHandler(new ShapelessRecipeHandler());
+        sendHandler("codechicken.nei.recipe.ShapelessRecipeHandler", "minecraft:crafting_table");
+
+        API.registerRecipeHandler(new FireworkRecipeHandler());
+        API.registerUsageHandler(new FireworkRecipeHandler());
+        sendHandler("codechicken.nei.recipe.FireworkRecipeHandler", "minecraft:fireworks");
+
+        API.registerRecipeHandler(new FurnaceRecipeHandler());
+        API.registerUsageHandler(new FurnaceRecipeHandler());
+        sendHandler("codechicken.nei.recipe.FurnaceRecipeHandler", "minecraft:furnace");
+
+        API.registerRecipeHandler(new BrewingRecipeHandler());
+        API.registerUsageHandler(new BrewingRecipeHandler());
+        sendHandler("codechicken.nei.recipe.BrewingRecipeHandler", "minecraft:brewing_stand");
+
+        API.registerRecipeHandler(new FuelRecipeHandler());
+        API.registerUsageHandler(new FuelRecipeHandler());
+        sendFuelRecipeHandler();
+
+        API.registerRecipeHandler(new InformationHandler());
+        API.registerUsageHandler(new InformationHandler());
+        sendInformationHandler();
+
+        API.registerRecipeHandler(new RepairRecipeHandler());
+        API.registerUsageHandler(new RepairRecipeHandler());
+        sendRepairHandler();
+        sendCatalyst("repair", "minecraft:anvil");
+
+        API.registerGuiOverlay(GuiCrafting.class, "crafting");
+        API.registerGuiOverlay(GuiInventory.class, "crafting2x2", 63, 20);
+        API.registerGuiOverlay(GuiFurnace.class, "smelting");
+        API.registerGuiOverlay(GuiFurnace.class, "fuel");
+        API.registerGuiOverlay(GuiBrewingStand.class, "brewing");
+        API.registerGuiOverlay(GuiRepair.class, "repair", 2, 37);
+
+        API.registerGuiOverlayHandler(GuiCrafting.class, new DefaultOverlayHandler(), "crafting");
+        API.registerGuiOverlayHandler(GuiInventory.class, new DefaultOverlayHandler(63, 20), "crafting2x2");
+        API.registerGuiOverlayHandler(GuiBrewingStand.class, new BrewingOverlayHandler(), "brewing");
+        API.registerGuiOverlayHandler(GuiRepair.class, new RepairOverlayHandler(), "repair");
+
+        API.registerRecipeHandler(new ProfilerRecipeHandler(true));
+        API.registerUsageHandler(new ProfilerRecipeHandler(false));
+        sendProfilerRecipeHandler();
+    }
+
+    private static void sendHandler(String aName, String aBlock) {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", aName);
+        aNBT.setString("modName", "Minecraft");
+        aNBT.setString("modId", "minecraft");
+        aNBT.setString("itemName", aBlock);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setInteger("handlerHeight", 65);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendRepairHandler() {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", "codechicken.nei.recipe.RepairRecipeHandler");
+        aNBT.setString("modName", "Minecraft");
+        aNBT.setString("modId", "minecraft");
+        aNBT.setString("itemName", "minecraft:anvil");
+        aNBT.setInteger("handlerHeight", 39);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setBoolean("showFavoritesButton", false);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendFuelRecipeHandler() {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", "codechicken.nei.recipe.FuelRecipeHandler");
+        aNBT.setString("modName", "Minecraft");
+        aNBT.setString("modId", "minecraft");
+        aNBT.setString("imageResource", "nei:textures/nei_tabbed_sprites.png");
+        aNBT.setInteger("imageX", 80);
+        aNBT.setInteger("imageY", 0);
+        aNBT.setInteger("imageWidth", 14);
+        aNBT.setInteger("imageHeight", 14);
+        aNBT.setInteger("handlerHeight", 65);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendInformationHandler() {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", "codechicken.nei.recipe.InformationHandler");
+        aNBT.setString("modName", "Not Enough Items");
+        aNBT.setString("modId", "nei");
+        aNBT.setString("imageResource", "nei:textures/nei_tabbed_sprites.png");
+        aNBT.setInteger("imageX", 96);
+        aNBT.setInteger("imageY", 0);
+        aNBT.setInteger("imageWidth", 16);
+        aNBT.setInteger("imageHeight", 16);
+        aNBT.setInteger("handlerHeight", 65);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendProfilerRecipeHandler() {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", "codechicken.nei.recipe.ProfilerRecipeHandler");
+        aNBT.setString("modName", "Not Enough Items");
+        aNBT.setString("modId", "nei");
+        aNBT.setString("itemName", "minecraft:clock");
+        aNBT.setInteger("handlerHeight", 16);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendCatalyst(String aName, String aStack) {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handlerID", aName);
+        aNBT.setString("itemName", aStack);
+        aNBT.setInteger("priority", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerCatalystInfo", aNBT);
+    }
+
+}

src/main/java/codechicken/nei/Image.java

@@ -1,14 +1,13 @@
 package codechicken.nei;
 
-public class Image
-{
+public class Image {
+
     public int x;
     public int y;
     public int width;
     public int height;
 
-    public Image(int x, int y, int w, int h)
-    {
+    public Image(int x, int y, int w, int h) {
         this.x = x;
         this.y = y;
         width = w;

src/main/java/codechicken/nei/InfiniteStackSizeHandler.java

@@ -1,55 +1,40 @@
 package codechicken.nei;
 
-import codechicken.lib.inventory.InventoryUtils;
-import codechicken.nei.api.IInfiniteItemHandler;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.item.ItemStack;
 
-public class InfiniteStackSizeHandler implements IInfiniteItemHandler
-{
+import codechicken.lib.inventory.InventoryUtils;
+import codechicken.nei.api.IInfiniteItemHandler;
+
+public class InfiniteStackSizeHandler implements IInfiniteItemHandler {
+
     @Override
-    public void onPickup(ItemStack heldItem)
-    {
+    public void onPickup(ItemStack heldItem) {
         heldItem.stackSize = 1;
     }
 
     @Override
-    public void onPlaceInfinite(ItemStack heldItem)
-    {
+    public void onPlaceInfinite(ItemStack heldItem) {
         heldItem.stackSize = 111;
     }
 
     @Override
-    public boolean canHandleItem(ItemStack stack)
-    {
+    public boolean canHandleItem(ItemStack stack) {
         return !stack.isItemStackDamageable();
     }
 
     @Override
-    public boolean isItemInfinite(ItemStack stack)
-    {
+    public boolean isItemInfinite(ItemStack stack) {
         return stack.stackSize == -1 || stack.stackSize > 100;
     }
 
     @Override
-    public void replenishInfiniteStack(InventoryPlayer inv, int slotNo)
-    {
-        ItemStack stack = inv.getStackInSlot(slotNo);
-        stack.stackSize = 111;
-        
-        for(int i = 0; i < inv.getSizeInventory(); i++)
-        {
-            if(i == slotNo)
-                continue;
-            
-            if(NEIServerUtils.areStacksSameType(stack, inv.getStackInSlot(i)))
-                inv.setInventorySlotContents(i, null);
-        }
+    public void replenishInfiniteStack(InventoryPlayer inv, int slotNo) {
+        inv.getStackInSlot(slotNo).stackSize = 111;
     }
 
     @Override
-    public ItemStack getInfiniteItem(ItemStack typeStack)
-    {
+    public ItemStack getInfiniteItem(ItemStack typeStack) {
         return InventoryUtils.copyStack(typeStack, -1);
     }
 }

src/main/java/codechicken/nei/InfiniteToolHandler.java

@@ -1,11 +1,12 @@
 package codechicken.nei;
 
-import codechicken.nei.api.IInfiniteItemHandler;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.item.ItemStack;
 
-public class InfiniteToolHandler implements IInfiniteItemHandler
-{
+import codechicken.nei.api.IInfiniteItemHandler;
+
+public class InfiniteToolHandler implements IInfiniteItemHandler {
+
     @Override
     public void onPickup(ItemStack heldItem) {
         heldItem.setItemDamage(0);

src/main/java/codechicken/nei/InventoryCraftingDummy.java

@@ -4,15 +4,13 @@ import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.inventory.Container;
 import net.minecraft.inventory.InventoryCrafting;
 
-public class InventoryCraftingDummy extends InventoryCrafting
-{
-    public InventoryCraftingDummy()
-    {
-        super(new Container()
-        {
+public class InventoryCraftingDummy extends InventoryCrafting {
+
+    public InventoryCraftingDummy() {
+        super(new Container() {
+
             @Override
-            public boolean canInteractWith(EntityPlayer entityplayer)
-            {
+            public boolean canInteractWith(EntityPlayer entityplayer) {
                 return true;
             }
         }, 3, 3);

src/main/java/codechicken/nei/ItemCraftablesPanel.java

@@ -0,0 +1,483 @@
+package codechicken.nei;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.ItemsGrid.ItemsGridSlot;
+import codechicken.nei.ItemsGrid.MouseContext;
+import codechicken.nei.NEIClientUtils.Alignment;
+import codechicken.nei.recipe.AutoCraftingManager;
+import codechicken.nei.recipe.GuiCraftingRecipe;
+import codechicken.nei.recipe.GuiRecipe;
+import codechicken.nei.recipe.ICraftingHandler;
+import codechicken.nei.recipe.IRecipeHandler;
+import codechicken.nei.recipe.Recipe;
+import codechicken.nei.recipe.Recipe.RecipeId;
+import codechicken.nei.recipe.RecipeInfo;
+import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.ReadableNumberConverter;
+
+public class ItemCraftablesPanel
+        extends AbstractSubpanel<ItemsGrid<ItemCraftablesPanel.CraftablesGridSlot, MouseContext>> {
+
+    public static class CraftablesGridSlot extends ItemsGridSlot {
+
+        protected final long realAmount;
+        protected final boolean isFluidDisplay;
+        protected final RecipeId recipeId;
+
+        public CraftablesGridSlot(int slotIndex, int itemIndex, ItemStack itemStack, RecipeId recipeId) {
+            super(slotIndex, itemIndex, itemStack);
+            this.realAmount = StackInfo.getAmount(itemStack);
+            this.isFluidDisplay = StackInfo.isFluidDisplayItem(itemStack);
+            this.recipeId = recipeId;
+        }
+
+        @Override
+        public RecipeId getRecipeId() {
+            return this.recipeId;
+        }
+
+        @Override
+        public <M extends MouseContext> void afterDraw(Rectangle4i rect, M mouseContext) {
+            drawStackSize(rect);
+        }
+
+        protected void drawStackSize(Rectangle4i rect) {
+            long stackSize = this.realAmount;
+
+            if (stackSize > 1) {
+                final float panelFactor = (rect.w - 2) / (DEFAULT_SLOT_SIZE - 2);
+                String amountString = "";
+
+                if (stackSize < 10_000) {
+                    amountString = String.valueOf(stackSize);
+                } else {
+                    amountString = ReadableNumberConverter.INSTANCE.toWideReadableForm(stackSize);
+                }
+
+                if (this.isFluidDisplay) {
+                    amountString += "L";
+                }
+
+                NEIClientUtils.drawNEIOverlayText(
+                        amountString,
+                        new Rectangle4i(rect.x + 1, rect.y + 1, rect.w - 2, rect.h - 2),
+                        panelFactor,
+                        0xFFFFFF,
+                        true,
+                        this.isFluidDisplay ? Alignment.BottomLeft : Alignment.BottomRight);
+            }
+        }
+
+    }
+
+    private static class CraftablesSnapshot {
+
+        final GuiContainer guiContainer;
+        final ItemStackAmount inventory;
+        final boolean showOnlyFavorites;
+        final int maxCandidates;
+
+        CraftablesSnapshot(GuiContainer guiContainer, ItemStackAmount inventory, boolean showOnlyFavorites,
+                int maxCandidates) {
+            this.guiContainer = guiContainer;
+            this.inventory = inventory;
+            this.showOnlyFavorites = showOnlyFavorites;
+            this.maxCandidates = maxCandidates;
+        }
+    }
+
+    private static class RecipeCandidate {
+
+        final IRecipeHandler handler;
+        final int recipeIndex;
+        final List<PositionedStack> ingredientStacks;
+        final ItemStack sortKeyItem;
+
+        RecipeCandidate(IRecipeHandler handler, int recipeIndex, List<PositionedStack> ingredientStacks,
+                ItemStack sortKeyItem) {
+            this.handler = handler;
+            this.recipeIndex = recipeIndex;
+            this.ingredientStacks = ingredientStacks;
+            this.sortKeyItem = sortKeyItem;
+        }
+    }
+
+    private static final Comparator<ItemStack> ITEM_SORT_COMPARATOR = Comparator
+            .comparing(FavoriteRecipes::containsManual).thenComparing(FavoriteRecipes::contains).reversed()
+            .thenComparing(ItemSorter.instance);
+
+    public static List<String> guiBlacklist = new ArrayList<>();
+    private final int MIN_DELAY = 600;
+
+    private Map<String, ArrayList<ICraftingHandler>> identHandlers = new HashMap<>();
+    private Map<ItemStack, RecipeId> availableRecipes = new HashMap<>();
+
+    private GuiContainer lastGuiContainer = null;
+    private ItemStackAmount lastPlayerInventory = null;
+    private long lastPlayerInventorySync = 0;
+    private int lastFavoritesCount = 0;
+
+    private volatile CraftablesSnapshot pendingSnapshot;
+    private final AtomicReference<Map<ItemStack, RecipeId>> pendingResult = new AtomicReference<>();
+    private final RestartableTask task = new RestartableTask("NEI Craftables Panel") {
+
+        @Override
+        public void execute() {
+            final CraftablesSnapshot snapshot = ItemCraftablesPanel.this.pendingSnapshot;
+
+            if (snapshot != null) {
+                pendingResult.set(generateCraftables(snapshot));
+            }
+        }
+    };
+
+    public ItemCraftablesPanel() {
+        this.grid = new ItemsGrid<>() {
+
+            protected List<CraftablesGridSlot> gridMask;
+
+            @Override
+            protected void onGridChanged() {
+                this.gridMask = null;
+                super.onGridChanged();
+            }
+
+            @Override
+            public List<CraftablesGridSlot> getMask() {
+
+                if (this.gridMask == null) {
+                    final int maxSlotIndex = this.rows * this.columns;
+                    final List<CraftablesGridSlot> gridMask = new ArrayList<>();
+                    this.realItems.clear();
+
+                    if (!ItemCraftablesPanel.this.availableRecipes.isEmpty()) {
+                        final List<Map.Entry<ItemStack, RecipeId>> entries = ItemCraftablesPanel.this.availableRecipes
+                                .entrySet().stream().sorted(Map.Entry.comparingByKey(ITEM_SORT_COMPARATOR))
+                                .limit(maxSlotIndex).collect(Collectors.toList());
+                        int slotIndex = 0;
+                        int itemIndex = 0;
+
+                        for (Map.Entry<ItemStack, RecipeId> entry : entries) {
+                            if (!isInvalidSlot(slotIndex)) {
+                                this.realItems.add(entry.getKey());
+                                gridMask.add(
+                                        new CraftablesGridSlot(
+                                                slotIndex,
+                                                itemIndex++,
+                                                entry.getKey(),
+                                                entry.getValue()));
+                            }
+                            if (slotIndex++ >= maxSlotIndex) {
+                                break;
+                            }
+                        }
+
+                        this.gridMask = gridMask;
+                    } else {
+                        this.gridMask = Collections.emptyList();
+                    }
+
+                    ItemCraftablesPanel.this.updateLinePadding();
+                }
+
+                return this.gridMask;
+            }
+
+            @Override
+            protected MouseContext getMouseContext(int mousex, int mousey) {
+                final ItemsGridSlot hovered = getSlotMouseOver(mousex, mousey);
+
+                if (hovered != null) {
+                    return new MouseContext(
+                            hovered.slotIndex,
+                            hovered.slotIndex / this.columns,
+                            hovered.slotIndex % this.columns);
+                }
+
+                return null;
+            }
+
+        };
+    }
+
+    @Override
+    protected ItemStack getDraggedStackWithQuantity(ItemStack itemStack) {
+        return ItemQuantityField.prepareStackWithQuantity(itemStack, StackInfo.getAmount(itemStack));
+    }
+
+    @Override
+    public void draw(int mousex, int mousey) {
+        if (!this.availableRecipes.isEmpty()) {
+            super.draw(mousex, mousey);
+        }
+    }
+
+    @Override
+    public int setPanelWidth(int width) {
+        if (getGuiContainer() != this.lastGuiContainer) updateCraftables();
+
+        final int columns = width / ItemsGrid.SLOT_SIZE;
+        final int useRows = NEIClientConfig.getIntSetting("inventory.craftables.useRows");
+        final int rows = (int) Math.min(Math.ceil(this.availableRecipes.size() * 1f / columns), useRows);
+
+        this.w = width;
+        this.h = 8 + ItemsGrid.SLOT_SIZE * Math.max(rows, 1);
+
+        return rows;
+    }
+
+    public void update() {
+        this.splittingLineColor = NEIClientConfig.getSetting("inventory.craftables.color").getHexValue();
+        applyPendingResult();
+        updateCraftables();
+        super.update();
+    }
+
+    private void applyPendingResult() {
+        final Map<ItemStack, RecipeId> result = this.pendingResult.getAndSet(null);
+
+        if (result != null && NEIClientConfig.showCraftablesPanelWidget()) {
+            this.availableRecipes = result;
+            this.grid.onGridChanged();
+        }
+    }
+
+    private void updateCraftables() {
+
+        if (!NEIClientConfig.showCraftablesPanelWidget()) {
+            clearCraftables();
+        } else if (this.lastPlayerInventory == null
+                || Math.abs(System.currentTimeMillis() - this.lastPlayerInventorySync) >= MIN_DELAY) {
+                    final GuiContainer firstGui = getGuiContainer();
+                    this.lastPlayerInventorySync = System.currentTimeMillis();
+
+                    if (firstGui != null && !ItemCraftablesPanel.guiBlacklist.contains(firstGui.getClass().getName())) {
+                        final boolean showOnlyFavorites = NEIClientConfig
+                                .getBooleanSetting("inventory.craftables.favoritesOnly");
+                        final ItemStackAmount inv = AutoCraftingManager.getInventoryItems(firstGui);
+
+                        if (this.lastGuiContainer != firstGui
+                                || showOnlyFavorites && this.lastFavoritesCount != FavoriteRecipes.size()
+                                || !inv.equals(this.lastPlayerInventory)) {
+                            this.lastPlayerInventory = inv;
+                            this.lastGuiContainer = firstGui;
+                            this.lastFavoritesCount = FavoriteRecipes.size();
+                            final int maxRows = NEIClientConfig.getIntSetting("inventory.craftables.useRows") + 2;
+                            final int maxCandidates = Math.max(this.grid.columns, 1) * maxRows;
+                            this.pendingSnapshot = new CraftablesSnapshot(
+                                    firstGui,
+                                    inv,
+                                    showOnlyFavorites,
+                                    maxCandidates);
+                            this.task.restart();
+                        }
+
+                    } else {
+                        clearCraftables();
+                    }
+
+                }
+
+    }
+
+    private void clearCraftables() {
+        if (!this.availableRecipes.isEmpty()) {
+            this.availableRecipes = Collections.emptyMap();
+            this.lastPlayerInventory = null;
+            this.grid.onGridChanged();
+        }
+    }
+
+    public void clearGuiReferences() {
+        this.lastGuiContainer = null;
+        this.pendingSnapshot = null;
+    }
+
+    private GuiContainer getGuiContainer() {
+        final GuiContainer firstGui = NEIClientUtils.getGuiContainer();
+        return (firstGui instanceof GuiRecipe<?>gui) ? gui.firstGui : firstGui;
+    }
+
+    private Map<ItemStack, RecipeId> generateCraftables(CraftablesSnapshot snapshot) {
+        final List<IRecipeHandler> availableHandlers = getAvailableHandlers(snapshot.guiContainer);
+        final Map<ItemStack, RecipeId> availableRecipes = new HashMap<>();
+
+        if (!availableHandlers.isEmpty()) {
+            final Map<Item, List<ItemStack>> invByItem = indexInventoryByItem(snapshot.inventory.values());
+
+            if (snapshot.showOnlyFavorites) {
+                for (IRecipeHandler handler : availableHandlers) {
+                    availableRecipes.putAll(filterHandlerRecipes(handler, invByItem, true));
+                }
+            } else {
+                final List<RecipeCandidate> candidates = Collections.synchronizedList(new ArrayList<>());
+
+                for (IRecipeHandler handler : availableHandlers) {
+                    collectHandlerCandidates(handler, invByItem, candidates);
+                }
+
+                candidates.sort(Comparator.comparing(c -> c.sortKeyItem, ITEM_SORT_COMPARATOR));
+                candidates.subList(0, Math.min(candidates.size(), snapshot.maxCandidates)).parallelStream()
+                        .forEach(candidate -> buildCandidate(candidate, availableRecipes));
+            }
+        }
+
+        return availableRecipes;
+    }
+
+    private List<IRecipeHandler> getAvailableHandlers(GuiContainer firstGui) {
+        final List<IRecipeHandler> availableHandlers = new ArrayList<>();
+
+        for (String ident : RecipeInfo.getOverlayHandlerIdents(firstGui)) {
+            availableHandlers.addAll(identHandlers.computeIfAbsent(ident, GuiCraftingRecipe::getCraftingHandlers));
+        }
+
+        return availableHandlers;
+    }
+
+    private static Map<Item, List<ItemStack>> indexInventoryByItem(List<ItemStack> invStacks) {
+        final Map<Item, List<ItemStack>> index = new HashMap<>();
+
+        for (ItemStack stack : invStacks) {
+            index.computeIfAbsent(stack.getItem(), i -> new ArrayList<>()).add(stack);
+        }
+
+        return index;
+    }
+
+    private void collectHandlerCandidates(IRecipeHandler handler, Map<Item, List<ItemStack>> invByItem,
+            List<RecipeCandidate> candidates) {
+        IntStream.range(0, handler.numRecipes()).parallel().forEach(recipeIndex -> {
+            final List<PositionedStack> ingredientStacks = handler.getIngredientStacks(recipeIndex);
+
+            if (existsIngredients(ingredientStacks, invByItem)) {
+                final ItemStack sortKeyItem = getCheapResultItem(handler, recipeIndex);
+
+                if (sortKeyItem != null) {
+                    candidates.add(new RecipeCandidate(handler, recipeIndex, ingredientStacks, sortKeyItem));
+                }
+            }
+        });
+    }
+
+    private void buildCandidate(RecipeCandidate candidate, Map<ItemStack, RecipeId> availableRecipes) {
+        final ItemStack result = getCheapResult(candidate.handler, candidate.recipeIndex);
+
+        if (result != null) {
+            final RecipeId recipeId = RecipeId.of(candidate.handler, candidate.recipeIndex, candidate.ingredientStacks);
+
+            synchronized (availableRecipes) {
+                availableRecipes.put(result, recipeId);
+            }
+        }
+    }
+
+    private static ItemStack getCheapResultItem(IRecipeHandler handler, int recipeIndex) {
+        final PositionedStack result = Recipe
+                .getMainResult(handler.getResultStacks(recipeIndex), pStack -> pStack.items[0]);
+        return result != null ? result.item : null;
+    }
+
+    private static ItemStack getCheapResult(IRecipeHandler handler, int recipeIndex) {
+        final List<PositionedStack> results = handler.getResultStacks(recipeIndex);
+
+        if (results.isEmpty()) {
+            return null;
+        }
+
+        final ItemStack stack = Recipe.getMainResult(results, pStack -> pStack.items[0]).item;
+        int stackSize = 0;
+
+        for (PositionedStack result : results) {
+            if (containsSameType(result, stack)) {
+                stackSize += StackInfo.getAmount(result.item);
+            }
+        }
+
+        return StackInfo.withAmount(stack, stackSize);
+    }
+
+    private static boolean containsSameType(PositionedStack pStack, ItemStack stack) {
+        final ItemStack normalized = StackInfo.withAmount(stack, 0);
+
+        for (ItemStack permutation : pStack.items) {
+            if (NEIServerUtils.areStacksSameTypeWithNBT(StackInfo.withAmount(permutation, 0), normalized)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private Map<ItemStack, RecipeId> filterHandlerRecipes(IRecipeHandler handler, Map<Item, List<ItemStack>> invByItem,
+            boolean showOnlyFavorites) {
+        final Map<ItemStack, RecipeId> availableRecipes = new HashMap<>();
+
+        IntStream.range(0, handler.numRecipes()).parallel().forEach(recipeIndex -> {
+            final List<PositionedStack> ingredientStacks = handler.getIngredientStacks(recipeIndex);
+
+            if (existsIngredients(ingredientStacks, invByItem)) {
+                final ItemStack result = getCheapResult(handler, recipeIndex);
+
+                if (result != null) {
+                    final RecipeId recipeId = RecipeId.of(handler, recipeIndex, ingredientStacks);
+
+                    if (!showOnlyFavorites || FavoriteRecipes.getFavorite(recipeId) != null) {
+                        synchronized (availableRecipes) {
+                            availableRecipes.put(result, recipeId);
+                        }
+                    }
+                }
+            }
+        });
+
+        return availableRecipes;
+    }
+
+    private boolean existsIngredients(List<PositionedStack> ingredients, Map<Item, List<ItemStack>> invByItem) {
+        final Map<ItemStack, Integer> usedItems = new HashMap<>();
+
+        for (PositionedStack pStack : ingredients) {
+            ItemStack used = null;
+
+            for (ItemStack permutation : pStack.items) {
+                final List<ItemStack> candidates = invByItem.get(permutation.getItem());
+
+                if (candidates == null) continue;
+
+                for (ItemStack is : candidates) {
+                    if (usedItems.getOrDefault(is, is.stackSize) >= pStack.item.stackSize
+                            && NEIServerUtils.areStacksSameTypeCrafting(permutation, is)) {
+                        used = is;
+                        break;
+                    }
+                }
+
+                if (used != null) break;
+            }
+
+            if (used != null) {
+                usedItems.put(used, usedItems.getOrDefault(used, used.stackSize) - pStack.item.stackSize);
+            } else {
+                return false;
+            }
+        }
+
+        return !usedItems.isEmpty();
+    }
+
+}

src/main/java/codechicken/nei/ItemHistoryPanel.java

@@ -0,0 +1,238 @@
+package codechicken.nei;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+
+import org.apache.commons.io.IOUtils;
+
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.JsonSyntaxException;
+
+import codechicken.core.CommonUtils;
+import codechicken.nei.ItemsGrid.ItemsGridSlot;
+import codechicken.nei.ItemsGrid.MouseContext;
+import codechicken.nei.recipe.Recipe.RecipeId;
+import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.NBTJson;
+
+public class ItemHistoryPanel extends AbstractSubpanel<ItemsGrid<ItemHistoryPanel.HistoryGridSlot, MouseContext>> {
+
+    protected File historyFile = null;
+
+    public static class HistoryGridSlot extends ItemsGridSlot {
+
+        public HistoryGridSlot(int slotIndex, int itemIndex, ItemStack item) {
+            super(slotIndex, itemIndex, item);
+        }
+
+        @Override
+        public RecipeId getRecipeId() {
+            return FavoriteRecipes.getFavorite(this.item);
+        }
+    }
+
+    public ItemHistoryPanel() {
+        this.grid = new ItemsGrid<>() {
+
+            protected List<HistoryGridSlot> gridMask;
+
+            @Override
+            protected void onGridChanged() {
+                this.gridMask = null;
+                super.onGridChanged();
+            }
+
+            @Override
+            public List<HistoryGridSlot> getMask() {
+
+                if (this.gridMask == null) {
+                    this.gridMask = new ArrayList<>();
+                    int itemIndex = 0;
+                    for (int slotIndex = 0; slotIndex < this.rows * this.columns && itemIndex < size(); slotIndex++) {
+                        if (!isInvalidSlot(slotIndex)) {
+                            this.gridMask.add(new HistoryGridSlot(slotIndex, itemIndex, getItem(itemIndex)));
+                            itemIndex++;
+                        }
+                    }
+
+                    ItemHistoryPanel.this.updateLinePadding();
+                }
+
+                return this.gridMask;
+            }
+
+            @Override
+            protected MouseContext getMouseContext(int mousex, int mousey) {
+                final HistoryGridSlot hovered = getSlotMouseOver(mousex, mousey);
+
+                if (hovered != null) {
+                    return new MouseContext(
+                            hovered.slotIndex,
+                            hovered.slotIndex / this.columns,
+                            hovered.slotIndex % this.columns);
+                }
+
+                return null;
+            }
+
+        };
+    }
+
+    @Override
+    protected ItemStack getDraggedStackWithQuantity(ItemStack itemStack) {
+        return ItemQuantityField.prepareStackWithQuantity(itemStack, 0);
+    }
+
+    @Override
+    public void draw(int mousex, int mousey) {
+        if (this.grid.size() > 0) {
+            super.draw(mousex, mousey);
+        }
+    }
+
+    @Override
+    public int setPanelWidth(int width) {
+        final int columns = width / ItemsGrid.SLOT_SIZE;
+        final int useRows = NEIClientConfig.getIntSetting("inventory.history.useRows");
+        final int rows = (int) Math.min(Math.ceil(this.grid.size() * 1f / columns), useRows);
+
+        this.w = width;
+        this.h = 8 + ItemsGrid.SLOT_SIZE * Math.max(rows, 1);
+
+        return rows;
+    }
+
+    public void update() {
+        this.splittingLineColor = NEIClientConfig.getSetting("inventory.history.color").getHexValue();
+        super.update();
+    }
+
+    public void addItem(ItemStack stack) {
+        if (stack != null) {
+            ItemStack is = StackInfo.withAmount(stack, 0);
+
+            this.grid.realItems.removeIf(historyStack -> StackInfo.equalItemAndNBT(historyStack, stack, true));
+            this.grid.realItems.add(0, is);
+
+            if (this.grid.realItems.size() > Math.max(50, this.grid.rows * this.grid.columns)) {
+                this.grid.realItems.remove(this.grid.realItems.size() - 1);
+            }
+
+            this.grid.onItemsChanged();
+        }
+    }
+
+    public void load() {
+
+        if (!NEIClientConfig.getBooleanSetting("inventory.history.save")) {
+            return;
+        }
+
+        String worldPath = "global";
+
+        if (NEIClientConfig.getBooleanSetting("inventory.history.worldSpecific")) {
+            worldPath = NEIClientConfig.getWorldPath();
+        }
+
+        final File dir = new File(CommonUtils.getMinecraftDir(), "saves/NEI/" + worldPath);
+
+        if (!dir.exists()) {
+            dir.mkdirs();
+        }
+
+        final File historyFile = new File(dir, "history.ini");
+
+        if (historyFile.equals(this.historyFile)) {
+            return;
+        }
+
+        List<String> itemStrings = Collections.emptyList();
+
+        if (historyFile.exists()) {
+            try (FileInputStream reader = new FileInputStream(historyFile)) {
+                NEIClientConfig.logger.info("Loading history from file {}", historyFile);
+                itemStrings = IOUtils.readLines(reader, StandardCharsets.UTF_8);
+            } catch (IOException e) {
+                NEIClientConfig.logger.error("Failed to load history from file {}", historyFile, e);
+                return;
+            }
+        }
+
+        final JsonParser parser = new JsonParser();
+        final int maxSize = Math.max(50, this.grid.rows * this.grid.columns);
+
+        this.grid.realItems.clear();
+
+        for (String itemStr : itemStrings) {
+
+            if (itemStr.isEmpty()) {
+                continue;
+            }
+
+            if (this.grid.realItems.size() >= maxSize) {
+                break;
+            }
+
+            try {
+                JsonObject row = parser.parse(itemStr).getAsJsonObject();
+                NBTTagCompound itemStackNBT = (NBTTagCompound) NBTJson.toNbt(row.get("item"));
+                ItemStack itemStack = StackInfo.loadFromNBT(itemStackNBT);
+
+                if (itemStack != null) {
+                    this.grid.realItems.add(itemStack);
+                } else {
+                    NEIClientConfig.logger.warn(
+                            "Failed to load history ItemStack from json string, the item no longer exists:\n{}",
+                            itemStr);
+                }
+            } catch (Exception e) {
+                NEIClientConfig.logger.error("Failed to load history ItemStack from json string:\n{}", itemStr);
+            }
+        }
+
+        this.grid.onItemsChanged();
+
+        this.historyFile = historyFile;
+    }
+
+    public void save() {
+
+        if (!NEIClientConfig.getBooleanSetting("inventory.history.save")) {
+            return;
+        }
+
+        if (this.historyFile == null) {
+            return;
+        }
+
+        final List<String> strings = new ArrayList<>();
+
+        for (ItemStack stack : this.grid.realItems) {
+
+            try {
+                final JsonObject row = new JsonObject();
+                row.add("item", NBTJson.toJsonObject(StackInfo.itemStackToNBT(stack)));
+                strings.add(NBTJson.toJson(row));
+            } catch (JsonSyntaxException e) {
+                NEIClientConfig.logger.error("Failed to stringify history ItemStack to json string");
+            }
+        }
+
+        try (FileOutputStream output = new FileOutputStream(this.historyFile)) {
+            IOUtils.writeLines(strings, "\n", output, StandardCharsets.UTF_8);
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to save history list to file {}", this.historyFile, e);
+        }
+    }
+
+}

src/main/java/codechicken/nei/ItemList.java

@@ -1,31 +1,32 @@
 package codechicken.nei;
 
-import codechicken.nei.ThreadOperationTimer.TimeoutException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.concurrent.ForkJoinPool;
+import java.util.concurrent.ForkJoinWorkerThread;
+import java.util.regex.Pattern;
+
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraft.util.StatCollector;
+
+import com.google.common.collect.ArrayListMultimap;
+import com.google.common.collect.ListMultimap;
+
 import codechicken.nei.api.ItemFilter;
 import codechicken.nei.api.ItemFilter.ItemFilterProvider;
 import codechicken.nei.api.ItemInfo;
-import codechicken.nei.guihook.GuiContainerManager;
-import com.google.common.collect.ArrayListMultimap;
-import com.google.common.collect.ListMultimap;
-import net.minecraft.item.Item;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.IIcon;
+import codechicken.nei.util.ItemUntranslator;
 
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.ForkJoinPool;
-import java.util.regex.Pattern;
-import java.util.stream.Collectors;
+public class ItemList {
 
-public class ItemList
-{
     /**
      * Fields are replaced atomically and contents never modified.
      */
-    public static volatile List<ItemStack>  items = new ArrayList<>();
+    public static volatile List<ItemStack> items = new ArrayList<>();
     /**
      * Fields are replaced atomically and contents never modified.
      */
@@ -36,27 +37,43 @@ public class ItemList
     public static final List<ItemFilterProvider> itemFilterers = new LinkedList<>();
     public static final List<ItemsLoadedCallback> loadCallbacks = new LinkedList<>();
 
-    private static final HashSet<Item> erroredItems = new HashSet<>();
-    private static final HashSet<String> stackTraces = new HashSet<>();
+    /**
+     * Unlike {@link LayoutManager#itemsLoaded}, this indicates whether item loading is actually finished or not.
+     */
+    public static boolean loadFinished;
+
+    public static class EverythingItemFilter implements ItemFilter {
 
-    public static class EverythingItemFilter implements ItemFilter
-    {
         @Override
         public boolean matches(ItemStack item) {
             return true;
         }
     }
 
-    public static class NothingItemFilter implements ItemFilter
-    {
+    public static class NothingItemFilter implements ItemFilter {
+
         @Override
         public boolean matches(ItemStack item) {
             return false;
         }
     }
 
-    public static class PatternItemFilter implements ItemFilter
-    {
+    public static class NegatedItemFilter implements ItemFilter {
+
+        public ItemFilter filter;
+
+        public NegatedItemFilter(ItemFilter filter) {
+            this.filter = filter;
+        }
+
+        @Override
+        public boolean matches(ItemStack item) {
+            return this.filter == null || !this.filter.matches(item);
+        }
+    }
+
+    public static class PatternItemFilter implements ItemFilter {
+
         public Pattern pattern;
 
         public PatternItemFilter(Pattern pattern) {
@@ -65,37 +82,68 @@ public class ItemList
 
         @Override
         public boolean matches(ItemStack item) {
-            return pattern.matcher(ItemInfo.getSearchName(item)).find();
+            String displayName = EnumChatFormatting.getTextWithoutFormattingCodes(item.getDisplayName());
+
+            if (displayName != null && !displayName.isEmpty() && this.pattern.matcher(displayName).find()) {
+                return true;
+            }
+
+            displayName = ItemUntranslator.getInstance().getItemStackDisplayName(item);
+
+            if (!displayName.isEmpty() && this.pattern.matcher(displayName).find()) {
+                return true;
+            }
+
+            if (item.hasDisplayName()) {
+                displayName = EnumChatFormatting
+                        .getTextWithoutFormattingCodes(item.getItem().getItemStackDisplayName(item));
+
+                if (displayName != null && !displayName.isEmpty() && this.pattern.matcher(displayName).find()) {
+                    return true;
+                }
+            }
+
+            for (String alias : ItemInfo.getAliases(item)) {
+                if (this.pattern.matcher(StatCollector.translateToLocal(alias)).find()) {
+                    return true;
+                }
+            }
+
+            return false;
         }
     }
 
-    public static class AllMultiItemFilter implements ItemFilter
-    {
+    public static class AllMultiItemFilter implements ItemFilter {
+
         public List<ItemFilter> filters;
 
         public AllMultiItemFilter(List<ItemFilter> filters) {
             this.filters = filters;
         }
 
+        public AllMultiItemFilter(ItemFilter... filters) {
+            this(new LinkedList<>(Arrays.asList(filters)));
+        }
+
         public AllMultiItemFilter() {
             this(new LinkedList<>());
         }
 
         @Override
         public boolean matches(ItemStack item) {
-            for(ItemFilter filter : filters)
-                try {
-                    if (!filter.matches(item)) return false;
-                } catch (Exception e) {
-                    NEIClientConfig.logger.error("Exception filtering "+item+" with "+filter, e);
-                }
+            for (ItemFilter filter : filters) try {
+                if (filter != null && !filter.matches(item)) return false;
+            } catch (Exception e) {
+                NEIClientConfig.logger
+                        .error("Exception filtering " + item + " with " + filter + " (" + e.getMessage() + ")", e);
+            }
 
             return true;
         }
     }
 
-    public static class AnyMultiItemFilter implements ItemFilter
-    {
+    public static class AnyMultiItemFilter implements ItemFilter {
+
         public List<ItemFilter> filters;
 
         public AnyMultiItemFilter(List<ItemFilter> filters) {
@@ -108,29 +156,29 @@ public class ItemList
 
         @Override
         public boolean matches(ItemStack item) {
-            for(ItemFilter filter : filters)
-                try {
-                    if (filter.matches(item)) return true;
-                } catch (Exception e) {
-                    NEIClientConfig.logger.error("Exception filtering "+item+" with "+filter, e);
-                }
+            for (ItemFilter filter : filters) try {
+                if (filter != null && filter.matches(item)) return true;
+            } catch (Exception e) {
+                NEIClientConfig.logger
+                        .error("Exception filtering " + item + " with " + filter + " (" + e.getMessage() + ")", e);
+            }
 
             return false;
         }
     }
 
-    public static interface ItemsLoadedCallback
-    {
+    public static interface ItemsLoadedCallback {
+
         public void itemsLoaded();
     }
 
     public static boolean itemMatchesAll(ItemStack item, List<ItemFilter> filters) {
-        for(ItemFilter filter : filters) {
+        for (ItemFilter filter : filters) {
             try {
-                if (!filter.matches(item))
-                    return false;
+                if (filter != null && !filter.matches(item)) return false;
             } catch (Exception e) {
-                NEIClientConfig.logger.error("Exception filtering "+item+" with "+filter, e);
+                NEIClientConfig.logger
+                        .error("Exception filtering " + item + " with " + filter + " (" + e.getMessage() + ")", e);
             }
         }
 
@@ -138,7 +186,7 @@ public class ItemList
     }
 
     /**
-     * @deprecated  use getItemListFilter().matches(item)
+     * @deprecated use getItemListFilter().matches(item)
      */
     @Deprecated
     public static boolean itemMatches(ItemStack item) {
@@ -152,121 +200,65 @@ public class ItemList
     public static List<ItemFilter> getItemFilters() {
         LinkedList<ItemFilter> filters = new LinkedList<>();
         synchronized (itemFilterers) {
-            for(ItemFilterProvider p : itemFilterers)
+            for (ItemFilterProvider p : itemFilterers) {
                 filters.add(p.getFilter());
+            }
         }
         return filters;
     }
 
-    public static final RestartableTask loadItems = new RestartableTask("NEI Item Loading")
-    {
-        private void damageSearch(Item item, List<ItemStack> permutations) {
-            HashSet<String> damageIconSet = new HashSet<>();
-            for (int damage = 0; damage < 16; damage++)
-                try {
-                    ItemStack itemstack = new ItemStack(item, 1, damage);
-                    IIcon icon = item.getIconIndex(itemstack);
-                    String name = GuiContainerManager.concatenatedDisplayName(itemstack, false);
-                    String s = name + "@" + (icon == null ? 0 : icon.hashCode());
-                    if (!damageIconSet.contains(s)) {
-                        damageIconSet.add(s);
-                        permutations.add(itemstack);
+    public static ItemStack[] expandPermutations(ItemStack[] items) {
+        List<ItemStack> stacks = new ArrayList<>();
+        for (ItemStack item : items) {
+            if (item == null || item.getItem() == null) continue;
+
+            if (item.getItemDamage() == Short.MAX_VALUE) {
+                List<ItemStack> permutations = itemMap.get(item.getItem());
+                if (!permutations.isEmpty()) {
+                    for (ItemStack stack : permutations) {
+                        ItemStack toAdd = stack.copy();
+                        toAdd.stackSize = item.stackSize;
+                        stacks.add(toAdd);
                     }
+                } else {
+                    ItemStack base = new ItemStack(item.getItem(), item.stackSize);
+                    base.stackTagCompound = item.stackTagCompound;
+                    stacks.add(base);
                 }
-                catch(TimeoutException t) {
-                    throw t;
-                }
-                catch(Throwable t) {
-                    NEIServerUtils.logOnce(t, stackTraces, "Ommiting "+item+":"+damage+" "+item.getClass().getSimpleName(), item.toString());
-                }
-        }
-
-        @Override
-        @SuppressWarnings("unchecked")
-        public void execute() {
-            // System.out.println("Executing NEI Item Loading");
-            ThreadOperationTimer timer = getTimer(NEIClientConfig.getItemLoadingTimeout());
-
-            LinkedList<ItemStack> items = new LinkedList<>();
-            LinkedList<ItemStack> permutations = new LinkedList<>();
-            ListMultimap<Item, ItemStack> itemMap = ArrayListMultimap.create();
-
-            timer.setLimit(NEIClientConfig.getItemLoadingTimeout());
-            for (Item item : (Iterable<Item>) Item.itemRegistry) {
-                if (interrupted()) return;
-
-                if (item == null || erroredItems.contains(item))
-                    continue;
-
-                try {
-                    timer.reset(item);
-
-                    permutations.clear();
-                    permutations.addAll(ItemInfo.itemOverrides.get(item));
-
-                    if (permutations.isEmpty())
-                        item.getSubItems(item, null, permutations);
-
-                    if (permutations.isEmpty())
-                        damageSearch(item, permutations);
-
-                    permutations.addAll(ItemInfo.itemVariants.get(item));
-
-                    timer.reset();
-
-                    items.addAll(permutations);
-                    itemMap.putAll(item, permutations);
-                } catch (Throwable t) {
-                    NEIServerConfig.logger.error("Removing item: " + item + " from list.", t);
-                    erroredItems.add(item);
-                }
+                continue;
             }
 
-            if(interrupted()) return;
-            ItemList.items = items;
-            ItemList.itemMap = itemMap;
-            for(ItemsLoadedCallback callback : loadCallbacks)
-                callback.itemsLoaded();
-
-            updateFilter.restart();
+            stacks.add(item.copy());
         }
-    };
 
-    public static ForkJoinPool getPool(int poolSize) {
-        if(poolSize < 1)
-            poolSize = 1;
-
-        return new ForkJoinPool(poolSize);
+        return stacks.toArray(new ItemStack[0]);
     }
 
-    public static final int numProcessors = Runtime.getRuntime().availableProcessors();
-    public static ForkJoinPool forkJoinPool = getPool(numProcessors * 2 / 3);
+    public static ForkJoinPool forkJoinPool;
 
-    public static final RestartableTask updateFilter = new RestartableTask("NEI Item Filtering")
-    {
-        @Override
-        public void execute() {
-            // System.out.println("Executing NEI Item Filtering");
-            ArrayList<ItemStack> filtered;
-            ItemFilter filter = getItemListFilter();
+    static {
+        final ForkJoinPool.ForkJoinWorkerThreadFactory factory = new ForkJoinPool.ForkJoinWorkerThreadFactory() {
 
-            try {
-                filtered = ItemList.forkJoinPool.submit(() -> items.parallelStream()
-                    .filter(PresetsWidget::matches)
-                    .filter(filter::matches)
-                    .collect(Collectors.toCollection(ArrayList::new))).get();
-            } catch (InterruptedException | ExecutionException e) {
-                filtered = new ArrayList<>();
-                e.printStackTrace();
-                stop();
+            private int workerId;
+
+            @Override
+            public ForkJoinWorkerThread newThread(ForkJoinPool pool) {
+                final ForkJoinWorkerThread worker = ForkJoinPool.defaultForkJoinWorkerThreadFactory.newThread(pool);
+                worker.setName("NEI-worker-thread-" + workerId++);
+                return worker;
             }
+        };
+        int poolSize = Runtime.getRuntime().availableProcessors() * 2 / 3;
+        if (poolSize < 1) poolSize = 1;
+        forkJoinPool = new ForkJoinPool(poolSize, factory, null, false);
+    }
 
-            if(interrupted()) return;
-            ItemSorter.sort(filtered);
-            if(interrupted()) return;
-            ItemPanel.updateItemList(filtered);
-        }
-    };
+    // The item list pipeline lives in ItemListLoader; these references are kept for backward compatibility.
+    public static final RestartableTask loadItems = ItemListLoader.loadItems;
+
+    public static final RestartableTask refreshItems = ItemListLoader.refreshItems;
+
+    public static final RestartableTask updateFilter = ItemListLoader.updateFilter;
 
     /**
      * @deprecated Use updateFilter.restart()

src/main/java/codechicken/nei/ItemListLoader.java

@@ -0,0 +1,383 @@
+package codechicken.nei;
+
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ExecutionException;
+import java.util.stream.Collectors;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.init.Blocks;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.IIcon;
+import net.minecraftforge.fluids.IFluidContainerItem;
+
+import com.google.common.base.Throwables;
+import com.google.common.collect.ArrayListMultimap;
+import com.google.common.collect.ListMultimap;
+
+import codechicken.nei.ItemList.ItemsLoadedCallback;
+import codechicken.nei.ThreadOperationTimer.TimeoutException;
+import codechicken.nei.api.ItemFilter;
+import codechicken.nei.api.ItemInfo;
+import codechicken.nei.recipe.InformationHandler;
+import codechicken.nei.recipe.RecipeHandlerRef;
+import codechicken.nei.recipe.RepairRecipeHandler;
+import codechicken.nei.search.TooltipFilter;
+import cpw.mods.fml.common.FMLLog;
+
+public class ItemListLoader {
+
+    private static final HashSet<Item> erroredItems = new HashSet<>();
+    private static Map<ItemStack, Integer> ordering = new HashMap<>();
+
+    private ItemListLoader() {}
+
+    private static void damageSearch(Item item, List<ItemStack> permutations) {
+        final Set<String> damageIconSet = new HashSet<>();
+        final EntityPlayer player = Minecraft.getMinecraft().thePlayer;
+
+        for (int damage = 0; damage < 16; damage++) {
+            try {
+                final ItemStack itemstack = new ItemStack(item, 1, damage);
+                final IIcon icon = item.getIconIndex(itemstack);
+                final String key = itemstack.getDisplayName() + "@"
+                        + (icon == null ? 0 : icon.hashCode())
+                        + "@"
+                        + getInformation(itemstack, player);
+
+                if (damageIconSet.add(key)) {
+                    permutations.add(itemstack);
+                }
+            } catch (TimeoutException t) {
+                throw t;
+            } catch (Throwable t) {
+                NEIClientUtils.errorOnce(
+                        "ItemListLoader: " + item.toString(),
+                        "Ommiting " + item + ":" + damage + " " + item.getClass().getSimpleName(),
+                        t);
+            }
+        }
+    }
+
+    private static String getInformation(ItemStack stack, EntityPlayer player) {
+        try {
+            final List<String> tooltip = new ArrayList<>();
+            stack.getItem().addInformation(stack, player, tooltip, false);
+            return String.join("\n", tooltip);
+        } catch (Throwable ignored) {}
+
+        return "";
+    }
+
+    private static void updateOrdering(List<ItemStack> items) {
+        final Map<ItemStack, Integer> newOrdering = new HashMap<>();
+
+        if (!CollapsibleItems.isEmpty()) {
+            final HashMap<Integer, Integer> groups = new HashMap<>();
+            int orderIndex = 0;
+
+            for (ItemStack stack : items) {
+                final int groupIndex = CollapsibleItems.getGroupIndex(stack);
+
+                if (groupIndex == -1) {
+                    newOrdering.put(stack, orderIndex++);
+                } else {
+
+                    if (!groups.containsKey(groupIndex)) {
+                        groups.put(groupIndex, orderIndex++);
+                    }
+
+                    newOrdering.put(stack, groups.get(groupIndex));
+                }
+            }
+        } else {
+            int orderIndex = 0;
+
+            for (ItemStack stack : items) {
+                newOrdering.put(stack, orderIndex++);
+            }
+        }
+
+        ordering = newOrdering;
+    }
+
+    private static List<ItemStack> getPermutations(Item item) {
+        final List<ItemStack> permutations = new LinkedList<>(ItemInfo.itemOverrides.get(item));
+
+        if (permutations.isEmpty()) {
+            item.getSubItems(item, null, permutations);
+        }
+
+        if (permutations.isEmpty()) {
+            damageSearch(item, permutations);
+        }
+
+        permutations.addAll(ItemInfo.itemVariants.get(item));
+
+        return permutations.stream()
+                .filter(
+                        stack -> stack.getItem() != null && stack.getItem().delegate.name() != null
+                                && !ItemInfo.isHidden(stack))
+                .collect(Collectors.toList());
+    }
+
+    private static void runChecked(ItemStack stack, Runnable action, String reason) {
+        int hashOld = 0;
+        if (stack.hasTagCompound()) {
+            hashOld = stack.stackTagCompound.hashCode();
+        }
+
+        action.run();
+
+        if (stack.hasTagCompound() && hashOld != stack.stackTagCompound.hashCode()) {
+            FMLLog.warning(
+                    "NEI: Forced tag update with reason (" + reason + ") for " + stack + "(" + stack.getItem() + ")");
+        }
+    }
+
+    private static void forceTagCompoundInitialization(ItemStack stack) {
+        Item item = stack.getItem();
+        if (item == null) {
+            return;
+        }
+        if (item instanceof IFluidContainerItem fluidItem) {
+            runChecked(stack, () -> fluidItem.getFluid(stack), "getFluid");
+        }
+        runChecked(stack, () -> item.isDamaged(stack), "isDamaged");
+        runChecked(stack, () -> item.getDamage(stack), "getDamage");
+        runChecked(stack, () -> item.showDurabilityBar(stack), "showDurabilityBar");
+        runChecked(stack, () -> item.getAttributeModifiers(stack), "getAttributeModifiers");
+        runChecked(stack, () -> item.getDurabilityForDisplay(stack), "getDurabilityForDisplay");
+        runChecked(stack, () -> item.getItemStackLimit(stack), "getItemStackLimit");
+        runChecked(stack, () -> item.getToolClasses(stack), "getToolClasses");
+        runChecked(stack, () -> item.getUnlocalizedNameInefficiently(stack), "getUnlocalizedNameInefficiently");
+        runChecked(stack, () -> item.hasEffect(stack), "hasEffect");
+        runChecked(stack, () -> item.getDigSpeed(stack, Blocks.stone, 0), "getDigSpeed");
+
+        /*
+         * unused... for now runChecked(stack, () -> GameRegistry.getFuelValue(stack), "getFuelValue");
+         * runChecked(stack, () -> item.getUnlocalizedName(stack), "getUnlocalizedName"); runChecked(stack, () ->
+         * item.doesContainerItemLeaveCraftingGrid(stack), "doesContainerItemLeaveCraftingGrid"); runChecked(stack, ()
+         * -> item.getItemUseAction(stack), "getItemUseAction"); runChecked(stack, () ->
+         * item.getMaxItemUseDuration(stack), "getMaxItemUseDuration"); runChecked(stack, () ->
+         * item.getPotionEffect(stack), "getPotionEffect"); runChecked(stack, () -> item.isPotionIngredient(stack),
+         * "isPotionIngredient"); runChecked(stack, () -> item.getRarity(stack), "getRarity"); runChecked(stack, () ->
+         * item.hasCustomEntity(stack), "hasCustomEntity"); runChecked(stack, () -> item.getSmeltingExperience(stack),
+         * "getSmeltingExperience"); runChecked(stack, () -> item.getMaxDamage(stack), "getMaxDamage");
+         * runChecked(stack, () -> item.getDamage(stack), "getDamage"); runChecked(stack, stack::isItemDamaged,
+         * "isItemDamaged"); runChecked(stack, () -> item.hasEffect(stack, 0), "hasEffect"); runChecked(stack, () ->
+         * item.getItemEnchantability(stack), "getItemEnchantability"); runChecked(stack, () ->
+         * item.isBeaconPayment(stack), "isBeaconPayment"); runChecked(stack, () -> item.getDamage(stack), "getDamage");
+         * runChecked(stack, () -> item.getDamage(stack), "getDamage"); runChecked(stack, () -> item.getDamage(stack),
+         * "getDamage");
+         */
+    }
+
+    @SuppressWarnings("unchecked")
+    private static List<ItemStack> gatherItems(ThreadOperationTimer timer) {
+        ItemSorter.instance.ordering.clear();
+
+        List<ItemStack> items = new ArrayList<>();
+        ListMultimap<Item, ItemStack> itemMap = ArrayListMultimap.create();
+        ItemStackSet unique = new ItemStackSet();
+
+        final List<Item> registryItems = new ArrayList<>();
+        for (Item item : (Iterable<Item>) Item.itemRegistry) registryItems.add(item);
+
+        registryItems.parallelStream().forEach(item -> {
+            if (item == null || item.delegate.name() == null || erroredItems.contains(item)) return;
+
+            try {
+                timer.reset(item);
+                List<ItemStack> permutations = getPermutations(item);
+                timer.reset();
+
+                synchronized (itemMap) {
+                    itemMap.putAll(item, permutations);
+                }
+            } catch (Throwable t) {
+                NEIServerConfig.logger.error(
+                        "Removing item: {} from list.\n{}: {}",
+                        item,
+                        t.getMessage(),
+                        Throwables.getStackTraceAsString(t));
+                erroredItems.add(item);
+            }
+
+        });
+
+        int index = 0;
+        for (Item item : (Iterable<Item>) Item.itemRegistry) {
+            for (ItemStack stack : itemMap.get(item)) {
+                ItemSorter.instance.ordering.put(stack, index++);
+
+                if (!unique.contains(stack)) {
+                    unique.add(stack);
+                    items.add(stack);
+                }
+            }
+        }
+
+        ItemList.itemMap = itemMap;
+
+        return items;
+    }
+
+    private static void buildItemCaches(List<ItemStack> items) {
+        SearchField.searchParser.clearCache();
+        TooltipFilter.clearCache();
+        InformationHandler.clearCache();
+
+        items.parallelStream().forEach(stack -> {
+            try {
+                forceTagCompoundInitialization(stack);
+                InformationHandler.populateStacks(stack);
+            } catch (Throwable t) {
+                NEIServerConfig.logger.error(
+                        "Failed to build caches for: {}\n{}: {}",
+                        stack,
+                        t.getMessage(),
+                        Throwables.getStackTraceAsString(t));
+            }
+        });
+    }
+
+    private static void indexCollapsibleItems(List<ItemStack> items) {
+        CollapsibleItems.clearCache();
+        items.parallelStream().forEach(CollapsibleItems::putItem);
+    }
+
+    public static final RestartableTask loadItems = new RestartableTask("NEI Item Loading") {
+
+        @Override
+        public void execute() {
+            if (!NEIClientConfig.isEnabled() || NEIClientUtils.mc().thePlayer == null) return;
+
+            final ThreadOperationTimer timer = getTimer(NEIClientConfig.getItemLoadingTimeout());
+            LayoutManager.itemsLoaded = true;
+            ItemList.loadFinished = false;
+            warmTooltips.stop();
+
+            List<ItemStack> items = gatherItems(timer);
+
+            if (interrupted()) return;
+            buildItemCaches(items);
+            indexCollapsibleItems(items);
+
+            if (interrupted()) return;
+            ItemSorter.sort(items);
+
+            if (interrupted()) return;
+            ItemList.items = items;
+            for (ItemsLoadedCallback callback : ItemList.loadCallbacks) callback.itemsLoaded();
+
+            if (interrupted()) return;
+            updateOrdering(ItemList.items);
+
+            ItemList.loadFinished = true;
+
+            RepairRecipeHandler.findRepairRecipesOnceParallel();
+            RecipeHandlerRef.clearCache();
+            FavoriteRecipes.reload();
+            SubsetWidget.updateHiddenItems();
+            updateFilter.restart();
+            warmTooltips.restart();
+            loadBookmarks.restart();
+            loadHistory.restart();
+        }
+    };
+
+    public static final RestartableTask warmTooltips = new RestartableTask("NEI Tooltip Caching") {
+
+        @Override
+        public void execute() {
+            if (!ItemList.loadFinished) return;
+            // Use the common pool, not ItemList.forkJoinPool, so it does not queue behind updateFilter.
+            ItemList.items.parallelStream().forEach(stack -> {
+                if (interrupted()) return;
+                try {
+                    TooltipFilter.getSearchTooltip(stack);
+                } catch (Throwable ignored) {}
+            });
+        }
+    };
+
+    public static final RestartableTask loadBookmarks = new RestartableTask("NEI Bookmark Loading") {
+
+        @Override
+        public void execute() {
+            ItemPanels.bookmarkPanel.load();
+        }
+    };
+
+    public static final RestartableTask loadHistory = new RestartableTask("NEI History Loading") {
+
+        @Override
+        public void execute() {
+            ItemPanels.itemPanel.historyPanel.load();
+        }
+    };
+
+    public static final RestartableTask refreshItems = new RestartableTask("NEI Item Reordering") {
+
+        @Override
+        public void execute() {
+            if (!ItemList.loadFinished) return;
+
+            final List<ItemStack> items = new ArrayList<>(ItemList.items);
+
+            indexCollapsibleItems(items);
+
+            if (interrupted()) return;
+            ItemSorter.sort(items);
+
+            if (interrupted()) return;
+            ItemList.items = items;
+            updateOrdering(ItemList.items);
+
+            FavoriteRecipes.reload();
+            SubsetWidget.updateHiddenItems();
+            updateFilter.restart();
+            loadBookmarks.restart();
+            loadHistory.restart();
+        }
+    };
+
+    public static final RestartableTask updateFilter = new RestartableTask("NEI Item Filtering") {
+
+        @Override
+        public void execute() {
+
+            if (!ItemList.loadFinished) return;
+            ItemFilter filter = ItemList.getItemListFilter();
+            ArrayList<ItemStack> filtered;
+
+            try {
+                filtered = ItemList.forkJoinPool.submit(
+                        () -> ItemList.items.parallelStream().filter(filter::matches)
+                                .collect(Collectors.toCollection(ArrayList::new)))
+                        .get();
+            } catch (InterruptedException | ExecutionException e) {
+                filtered = new ArrayList<>();
+                e.printStackTrace();
+                stop();
+            }
+
+            if (interrupted()) return;
+
+            filtered.sort(Comparator.comparingInt(ordering::get));
+
+            if (interrupted()) return;
+
+            ItemPanel.updateItemList(filtered);
+        }
+    };
+}

src/main/java/codechicken/nei/ItemMobSpawner.java

@@ -1,5 +1,11 @@
 package codechicken.nei;
 
+import java.lang.reflect.Modifier;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
 import net.minecraft.creativetab.CreativeTabs;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityList;
@@ -11,131 +17,313 @@ import net.minecraft.init.Blocks;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemBlock;
 import net.minecraft.item.ItemStack;
+import net.minecraft.tileentity.TileEntity;
 import net.minecraft.tileentity.TileEntityMobSpawner;
+import net.minecraft.util.EnumChatFormatting;
 import net.minecraft.util.IIcon;
 import net.minecraft.world.World;
 import net.minecraftforge.client.MinecraftForgeClient;
+import net.minecraftforge.common.util.ForgeDirection;
 
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 
-public class ItemMobSpawner extends ItemBlock
-{
-    private static Map<Integer, EntityLiving> entityHashMap;
-    private static Map<Integer, String> IDtoNameMap;
-    public static int idPig;
-    private static boolean loaded;
+public class ItemMobSpawner extends ItemBlock {
 
-    public ItemMobSpawner() {
-        super(Blocks.mob_spawner);
+    private static final Map<Integer, EntityLiving> entityHashMap = new ConcurrentHashMap<>();
+    private static final Map<Integer, String> IDtoNameMap = new ConcurrentHashMap<>();
+    private static final Map<Class<? extends Entity>, String> ENTITY_CLASS_TO_NAME_CACHE = new ConcurrentHashMap<>();
 
-        hasSubtypes = true;
-        MinecraftForgeClient.registerItemRenderer(this, new SpawnerRenderer());
+    public static int idPig = 90;
+    private static volatile boolean loaded = false;
 
-        entityHashMap = new HashMap<>();
-        IDtoNameMap = new HashMap<>();
-    }
-
-    /**
-     * These are ASM translated from BlockMobSpawner
-     */
+    // For asm
     public static int placedX;
     public static int placedY;
     public static int placedZ;
 
+    public static void setLastPlacedPosition(int x, int y, int z) {
+        placedX = x;
+        placedY = y;
+        placedZ = z;
+    }
+
+    public static int[] getLastPlacedPosition() {
+        return new int[] { placedX, placedY, placedZ };
+    }
+
+    public ItemMobSpawner() {
+        super(Blocks.mob_spawner);
+        hasSubtypes = true;
+        MinecraftForgeClient.registerItemRenderer(this, new SpawnerRenderer());
+    }
+
     @Override
-    public IIcon getIconFromDamage(int par1) {
+    public IIcon getIconFromDamage(int meta) {
         return Blocks.mob_spawner.getBlockTextureFromSide(0);
     }
 
-    public boolean onItemUse(ItemStack itemstack, EntityPlayer entityplayer, World world, int x, int y, int z, int par7, float par8, float par9, float par10) {
-        if (super.onItemUse(itemstack, entityplayer, world, x, y, z, par7, par8, par9, par10) && world.isRemote) {
-            TileEntityMobSpawner tileentitymobspawner = (TileEntityMobSpawner) world.getTileEntity(placedX, placedY, placedZ);
-            if (tileentitymobspawner != null) {
-                setDefaultTag(itemstack);
-                String mobtype = IDtoNameMap.get(itemstack.getItemDamage());
-                if (mobtype != null) {
-                    NEICPH.sendMobSpawnerID(placedX, placedY, placedZ, mobtype);
-                    tileentitymobspawner.func_145881_a().setEntityName(mobtype);
+    @Override
+    public boolean onItemUse(ItemStack itemstack, EntityPlayer entityplayer, World world, int x, int y, int z, int side,
+            float hitX, float hitY, float hitZ) {
+        int targetX = x;
+        int targetY = y;
+        int targetZ = z;
+
+        if (!world.getBlock(x, y, z).isReplaceable(world, x, y, z)) {
+            ForgeDirection direction = ForgeDirection.getOrientation(side);
+            targetX += direction.offsetX;
+            targetY += direction.offsetY;
+            targetZ += direction.offsetZ;
+        }
+
+        placedX = targetX;
+        placedY = targetY;
+        placedZ = targetZ;
+
+        String mobType = getMobTypeFromItemStack(itemstack);
+
+        boolean placed = super.onItemUse(itemstack, entityplayer, world, x, y, z, side, hitX, hitY, hitZ);
+
+        if (placed) {
+            TileEntity tileEntity = world.getTileEntity(targetX, targetY, targetZ);
+
+            if (tileEntity instanceof TileEntityMobSpawner spawner && mobType != null) {
+                spawner.func_145881_a().setEntityName(mobType);
+
+                if (!world.isRemote) {
+                    world.markBlockForUpdate(targetX, targetY, targetZ);
+                    NEICPH.sendMobSpawnerID(targetX, targetY, targetZ, mobType);
                 }
             }
+
             return true;
         }
+
         return false;
     }
 
+    private String getMobTypeFromItemStack(ItemStack stack) {
+        int meta = getValidMetaData(stack);
+        return IDtoNameMap.get(meta);
+    }
+
+    private int getValidMetaData(ItemStack stack) {
+        int meta = stack.getItemDamage();
+        if (meta == 0 || !IDtoNameMap.containsKey(meta)) {
+            return idPig;
+        }
+        return meta;
+    }
+
+    @SideOnly(Side.CLIENT)
     @Override
-    public void addInformation(ItemStack itemstack, EntityPlayer par2EntityPlayer, List list, boolean par4) {
-        setDefaultTag(itemstack);
-        int meta = itemstack.getItemDamage();
-        if (meta == 0) {
-            meta = idPig;
+    public void addInformation(ItemStack itemstack, EntityPlayer player, List<String> tooltip, boolean advanced) {
+        int meta = getValidMetaData(itemstack);
+        EntityLiving entity = getEntity(meta);
+        String mobName = IDtoNameMap.get(meta);
+
+        if (entity != null && mobName != null) {
+            EnumChatFormatting color = (entity instanceof IMob) ? EnumChatFormatting.DARK_RED
+                    : EnumChatFormatting.DARK_AQUA;
+            tooltip.add(color + mobName);
         }
-        Entity e = getEntity(meta);
-        list.add("\u00A7" + (e instanceof IMob ? "4" : "3") + IDtoNameMap.get(meta));
     }
 
-    public static EntityLiving getEntity(int ID) {
-        EntityLiving e = entityHashMap.get(ID);
-        if (e == null) {
-            World world = NEIClientUtils.mc().theWorld;
-            loadSpawners(world);
-            Class<?> clazz = (Class<?>) EntityList.IDtoClassMapping.get(ID);
-            try {
-                e = (EntityLiving) clazz.getConstructor(new Class[]{World.class}).newInstance(world);
-            } catch (Throwable t) {
-                if(clazz == null)
-                    NEIClientConfig.logger.error("Null class for entity ("+ID+", "+IDtoNameMap.get(ID));
-                else
-                    NEIClientConfig.logger.error("Error creating instance of entity: " + clazz.getName(), t);
-                e = getEntity(idPig);
-            }
-            entityHashMap.put(ID, e);
+    public static EntityLiving getEntity(int id) {
+        EntityLiving cached = entityHashMap.get(id);
+        if (cached != null) {
+            return cached;
         }
-        return e;
+
+        loadSpawners();
+
+        Class<?> entityClass = EntityList.IDtoClassMapping.get(id);
+        World world = NEIClientUtils.mc() != null ? NEIClientUtils.mc().theWorld : null;
+
+        if (isInvalidEntityClass(entityClass)) {
+            return cacheFallback(id);
+        }
+
+        EntityLiving entity = createEntityInstance(entityClass, world, id);
+        if (entity != null) {
+            entityHashMap.put(id, entity);
+        }
+
+        return entity;
     }
 
-    private void setDefaultTag(ItemStack itemstack) {
-        if (!IDtoNameMap.containsKey(itemstack.getItemDamage()))
-            itemstack.setItemDamage(idPig);
+    private static boolean isInvalidEntityClass(Class<?> entityClass) {
+        if (entityClass == null) {
+            return true;
+        }
+
+        int modifiers = entityClass.getModifiers();
+        if (Modifier.isAbstract(modifiers) || Modifier.isInterface(modifiers)) {
+            NEIClientConfig.logger.warn("Skipping abstract/interface entity class: {}", entityClass.getName());
+            return true;
+        }
+
+        if (!EntityLiving.class.isAssignableFrom(entityClass)) {
+            NEIClientConfig.logger.warn("Skipping non-EntityLiving class: {}", entityClass.getName());
+            return true;
+        }
+
+        return false;
     }
 
-    public static void loadSpawners(World world) {
-        if (loaded) return;
-        loaded = true;
-        HashMap<Class<Entity>, String> classToStringMapping = (HashMap<Class<Entity>, String>) EntityList.classToStringMapping;
-        HashMap<Class<Entity>, Integer> classToIDMapping = (HashMap<Class<Entity>, Integer>) EntityList.classToIDMapping;
-        for (Class<Entity> eclass : classToStringMapping.keySet()) {
-            if (!EntityLiving.class.isAssignableFrom(eclass))
-                continue;
-            try {
-                EntityLiving entityliving = (EntityLiving) eclass.getConstructor(new Class[]{World.class}).newInstance(world);
-                entityliving.isChild();
+    @SuppressWarnings("unchecked")
+    private static EntityLiving createEntityInstance(Class<?> entityClass, World world, int id) {
+        if (entityClass == null || world == null) {
+            NEIClientConfig.logger.debug("World or entity class is null, using fallback for ID: {}", id);
+            return getFallbackEntity(id);
+        }
 
-                int id = classToIDMapping.get(eclass);
-                String name = classToStringMapping.get(eclass);
+        try {
+            Class<? extends EntityLiving> livingClass = (Class<? extends EntityLiving>) entityClass;
+            return livingClass.getConstructor(World.class).newInstance(world);
+        } catch (Throwable t) {
+            logEntityCreationError(entityClass, id, t);
+            return getFallbackEntity(id);
+        }
+    }
 
-                if (name.equals("EnderDragon"))
-                    continue;
+    private static void logEntityCreationError(Class<?> entityClass, int id, Throwable t) {
+        String entityName = IDtoNameMap.getOrDefault(id, "unknown");
+        if (entityClass == null) {
+            NEIClientConfig.logger
+                    .error("Failed to create entity instance: Class is null for ID {}, Name {}", id, entityName, t);
+        } else {
+            NEIClientConfig.logger.error(
+                    "Failed to create instance of entity: Class {}, ID {}, Name {}",
+                    entityClass.getName(),
+                    id,
+                    entityName,
+                    t);
+        }
+    }
 
-                IDtoNameMap.put(id, name);
+    private static EntityLiving cacheFallback(int id) {
+        EntityLiving fallback = getFallbackEntity(id);
+        if (fallback != null) {
+            entityHashMap.put(id, fallback);
+        }
+        return fallback;
+    }
 
-                if (name.equals("Pig"))
-                    idPig = id;
-            } catch (Throwable ignored) {
+    private static EntityLiving getFallbackEntity(int originalId) {
+        EntityLiving pig = entityHashMap.get(idPig);
+        if (pig == null) {
+            World world = NEIClientUtils.mc() != null ? NEIClientUtils.mc().theWorld : null;
+
+            if (world != null) {
+                try {
+                    pig = new EntityPig(world);
+                    entityHashMap.put(idPig, pig);
+                    NEIClientConfig.logger.debug("Created fallback pig entity for ID: {}", originalId);
+                } catch (Exception e) {
+                    NEIClientConfig.logger
+                            .error("Failed to create fallback pig entity for original ID: {}", originalId, e);
+                }
+            } else {
+                NEIClientConfig.logger.warn("World is null, cannot create fallback entity for ID: {}", originalId);
             }
         }
 
-        IDtoNameMap.entrySet().removeIf(e -> getEntity(e.getKey()).getClass() == EntityPig.class && !e.getValue().equals("Pig"));
+        return pig;
+    }
+
+    public static void clearEntityReferences() {
+        entityHashMap.clear();
+        NEIClientConfig.logger.debug("Cleared all entity references from cache");
+    }
+
+    public static void loadSpawners() {
+        if (loaded) {
+            return;
+        }
+
+        synchronized (ItemMobSpawner.class) {
+            try {
+                for (Map.Entry<Class<? extends Entity>, String> entry : EntityList.classToStringMapping.entrySet()) {
+
+                    Class<? extends Entity> clazz = entry.getKey();
+                    String name = entry.getValue();
+
+                    if (shouldRegisterEntity(clazz, name)) {
+                        Integer id = (Integer) EntityList.classToIDMapping.get(clazz);
+                        if (id != null) {
+                            IDtoNameMap.put(id, name);
+                            ENTITY_CLASS_TO_NAME_CACHE.put(clazz, name);
+
+                            if ("Pig".equals(name)) {
+                                idPig = id;
+                                NEIClientConfig.logger.debug("Set pig entity ID to: {}", id);
+                            }
+                        }
+                    }
+                }
+                loaded = true;
+                NEIClientConfig.logger.info("Loaded {} spawner entity mappings", IDtoNameMap.size());
+
+            } catch (Exception e) {
+                NEIClientConfig.logger.error("Error loading spawners from entity list", e);
+            }
+        }
+    }
+
+    private static boolean shouldRegisterEntity(Class<? extends Entity> clazz, String name) {
+        if (clazz == null || name == null || name.trim().isEmpty()) {
+            return false;
+        }
+
+        if (!EntityLiving.class.isAssignableFrom(clazz)) {
+            return false;
+        }
+
+        if ("EnderDragon".equals(name) || "Giant".equals(name)) {
+            return false;
+        }
+
+        return true;
     }
 
     @Override
-    public void getSubItems(Item item, CreativeTabs tab, List list) {
-        if(!NEIClientConfig.hasSMPCounterPart())
+    public void getSubItems(Item item, CreativeTabs tab, List<ItemStack> list) {
+        if (!NEIClientConfig.hasSMPCounterPart()) {
             list.add(new ItemStack(item));
-        else
-            for(int i : IDtoNameMap.keySet())
-                list.add(new ItemStack(item, 1, i));
+        } else {
+            loadSpawners();
+            for (int id : IDtoNameMap.keySet()) {
+                ItemStack stack = new ItemStack(item, 1, id);
+                list.add(stack);
+            }
+        }
+    }
+
+    public static String getEntityNameForMeta(int meta) {
+        loadSpawners();
+        return IDtoNameMap.getOrDefault(meta, IDtoNameMap.getOrDefault(idPig, "Pig"));
+    }
+
+    public static boolean isValidEntityMeta(int meta) {
+        loadSpawners();
+        return IDtoNameMap.containsKey(meta) || meta == 0;
+    }
+
+    public static Map<Integer, String> getRegisteredSpawnerEntities() {
+        loadSpawners();
+        return Collections.unmodifiableMap(IDtoNameMap);
+    }
+
+    public static boolean isEntityValidForSpawner(Class<? extends Entity> entityClass) {
+        if (entityClass == null) return false;
+
+        String name = ENTITY_CLASS_TO_NAME_CACHE.get(entityClass);
+        if (name == null) {
+            name = EntityList.classToStringMapping.get(entityClass);
+        }
+
+        return name != null && shouldRegisterEntity(entityClass, name);
     }
 }

src/main/java/codechicken/nei/ItemPanel.java

@@ -1,39 +1,23 @@
 package codechicken.nei;
 
-import codechicken.lib.vec.Rectangle4i;
-import codechicken.nei.api.GuiInfo;
-import codechicken.nei.api.INEIGuiHandler;
-import codechicken.nei.guihook.GuiContainerManager;
-import codechicken.nei.recipe.GuiCraftingRecipe;
-import codechicken.nei.recipe.GuiRecipe;
-import codechicken.nei.recipe.GuiUsageRecipe;
-import codechicken.nei.recipe.StackInfo;
-import net.minecraft.client.gui.inventory.GuiContainer;
-import net.minecraft.client.gui.inventory.GuiContainerCreative;
-import net.minecraft.inventory.Slot;
-import net.minecraft.item.ItemStack;
-import net.minecraftforge.fluids.FluidStack;
-import net.minecraftforge.fluids.IFluidContainerItem;
-
-import static codechicken.lib.gui.GuiDraw.drawRect;
-import static codechicken.nei.LayoutManager.searchField;
-
 import java.util.ArrayList;
-import java.util.regex.Pattern;
+import java.util.List;
+import java.util.Map;
 
-public class ItemPanel extends Widget
-{
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.item.ItemStack;
 
-    public ItemStack draggedStack;
-    public int mouseDownSlot = -1;
+import codechicken.lib.gui.GuiDraw;
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.ItemsPanelGrid.ItemsPanelGridSlot;
+import codechicken.nei.util.NEIMouseUtils;
 
-    public Button pagePrev;
-    public Button pageNext;
-    public Label pageLabel;
+public class ItemPanel extends PanelWidget<ItemsPanelGrid> {
 
     /**
-     *  Backwards compat :-/
+     * Backwards compat :-/
      */
+    @SuppressWarnings("unused")
     @Deprecated
     private int itemsPerPage = 0;
 
@@ -43,518 +27,251 @@ public class ItemPanel extends Widget
     @Deprecated
     public ArrayList<ItemStack> realItems = new ArrayList<>();
 
-    protected Pattern SPECIAL_REGEX_CHARS = Pattern.compile("[{}()\\[\\].+*?^$\\\\|]");
+    public ItemStack getStackMouseOver(int mousex, int mousey) {
+        // *looks angrily at AppleCore*
+        return super.getStackMouseOver(mousex, mousey);
+    }
 
-    public static class ItemPanelSlot
-    {
-        public ItemStack item;
-        public int slotIndex;
+    public ItemHistoryPanel historyPanel = new ItemHistoryPanel();
+    public ItemCraftablesPanel craftablesPanel = new ItemCraftablesPanel();
+    protected Button toggleGroups;
 
-        public ItemPanelSlot(int idx, ItemStack stack)
-        {
-            slotIndex = idx;
-            item = stack;
+    @Deprecated
+    public static class ItemPanelSlot extends ItemsPanelGridSlot {
+
+        @Deprecated
+        public ItemPanelSlot(int idx, ItemStack item) {
+            this(idx, 0, item);
         }
 
         @Deprecated
-        public ItemPanelSlot(int idx)
-        {
-            this(idx, ItemPanels.itemPanel.getGrid().getItem(idx));
+        public ItemPanelSlot(int idx) {
+            this(idx, 0, ItemPanels.itemPanel.getGrid().getItem(idx));
         }
 
-    }
-
-    protected static class ItemPanelGrid extends ItemsGrid
-    {
-        public ArrayList<ItemStack> newItems;
-
-        public void setItems(ArrayList<ItemStack> items)
-        {
-            newItems = items;
+        private ItemPanelSlot(int slotIndex, int itemIndex, ItemStack item) {
+            super(slotIndex, itemIndex, item);
         }
 
-        public void refresh(GuiContainer gui)
-        {
+        protected static ItemPanelSlot of(ItemsPanelGridSlot slot) {
 
-            if (newItems != null) {
-                realItems = newItems;
-                newItems = null;
+            if (slot != null) {
+                ItemPanelSlot customSlot = new ItemPanelSlot(slot.slotIndex, slot.itemIndex, slot.item);
+                customSlot.groupIndex = slot.groupIndex;
+                customSlot.displayName = slot.displayName;
+                customSlot.bgItemStack = slot.bgItemStack;
+                customSlot.groupSize = slot.groupSize;
+                customSlot.extended = slot.extended;
+                customSlot.bgColor = slot.bgColor;
+                return customSlot;
             }
 
-            super.refresh(gui);
+            return null;
         }
-
-        @Override
-        protected void drawItem(Rectangle4i rect, int idx, ItemPanelSlot focus)
-        {
-
-            if (PresetsWidget.inEditMode() && !PresetsWidget.isHidden(getItem(idx))) {
-                drawRect(rect.x, rect.y, rect.w, rect.h, 0xee555555);
-            }
-
-            super.drawItem(rect, idx, PresetsWidget.inEditMode()? null: focus);
-        }
-
-
     }
 
-    protected ItemsGrid grid = new ItemPanelGrid();
-
-    public ArrayList<ItemStack> getItems()
-    {
-        return grid.getItems();
+    public ItemPanel() {
+        this.grid = new ItemsPanelGrid();
     }
 
-    public static void updateItemList(ArrayList<ItemStack> newItems)
-    {
-        ((ItemPanelGrid) ItemPanels.itemPanel.getGrid()).setItems(newItems);
+    public static void updateItemList(ArrayList<ItemStack> newItems) {
+        ItemPanels.itemPanel.getGrid().setItems(newItems);
         ItemPanels.itemPanel.realItems = newItems;
     }
 
-    @Deprecated
-    public void scroll(int i)
-    {
-        grid.shiftPage(i);
-    }
-
-    public ItemsGrid getGrid()
-    {
-        return grid;
-    }
-
+    @Override
     public void init() {
-        pageLabel = new Label("(0/0)", true);
+        super.init();
 
-        pagePrev = new Button("Prev")
-        {
-            public boolean onButtonPress(boolean rightclick) {
-                if (!rightclick) {
-                    grid.shiftPage(-1);
-                    return true;
-                }
-                return false;
-            }
+        toggleGroups = new Button("G") {
 
             @Override
             public String getRenderLabel() {
-                return "<";
-            }
-        };
-        pageNext = new Button("Next")
-        {
-            public boolean onButtonPress(boolean rightclick) {
-                if (!rightclick) {
-                    grid.shiftPage(1);
-                    return true;
-                }
-                return false;
+                return NEIClientUtils.translate("itempanel.collapsed.button");
             }
 
             @Override
-            public String getRenderLabel() {
-                return ">";
+            public String getButtonTip() {
+                return NEIClientUtils.translate("itempanel.collapsed.button.tip");
+            }
+
+            @Override
+            public boolean onButtonPress(boolean rightclick) {
+                CollapsibleItems.toggleGroups(rightclick ? false : null);
+                ItemList.updateFilter.restart();
+                return true;
             }
         };
 
     }
 
-    public int getMarginLeft(GuiContainer gui)
-    {
-        if (gui instanceof GuiContainerCreative && NEIClientUtils.getGamemode() == 2) {
-            //then activate creative+ first render creative gui and oly then creative+
-            return (gui.width + 176) / 2  + 2;
+    @Override
+    public ItemPanelSlot getSlotMouseOver(int mousex, int mousey) {
+        // use ItemPanelSlot for Backwards compat
+        return ItemPanelSlot.of(this.grid.getSlotMouseOver(mousex, mousey));
+    }
+
+    public String getLabelText() {
+        return String.format("%d/%d", getPage(), Math.max(1, getNumPages()));
+    }
+
+    @Override
+    public Rectangle4i calculateBounds(GuiContainer gui) {
+        final int maxWidth = (gui.width - 176) / 2 - PADDING * 2;
+        final int maxHeight = gui.height - PADDING * 2;
+        final int freeSpace = (gui.width - gui.xSize) / 2 - PADDING * 2;
+
+        final int paddingLeft = (int) Math
+                .ceil(maxWidth * NEIClientConfig.getSetting("world.panels.items.left").getIntValue() / 100000.0);
+        final int paddingTop = (int) Math
+                .ceil(maxHeight * NEIClientConfig.getSetting("world.panels.items.top").getIntValue() / 100000.0);
+        final int paddingRight = (int) Math
+                .ceil(maxWidth * NEIClientConfig.getSetting("world.panels.items.right").getIntValue() / 100000.0);
+        final int paddingBottom = (int) Math
+                .ceil(maxHeight * NEIClientConfig.getSetting("world.panels.items.bottom").getIntValue() / 100000.0);
+
+        final int width = Math.max(
+                ItemsGrid.SLOT_SIZE,
+                snapDownToMultiple(
+                        Math.min(freeSpace - paddingRight, maxWidth - paddingLeft - paddingRight),
+                        ItemsGrid.SLOT_SIZE));
+        final int height = Math.max(ItemsGrid.SLOT_SIZE, maxHeight - paddingTop - paddingBottom);
+
+        return new Rectangle4i(gui.width - width - PADDING - paddingRight, paddingTop + PADDING, width, height);
+    }
+
+    @Override
+    protected int resizeHeader(GuiContainer gui) {
+        int marginTop = super.resizeHeader(gui);
+
+        toggleGroups.w = pageNext.w;
+        toggleGroups.h = pageNext.h;
+        toggleGroups.y = pageNext.y;
+        toggleGroups.x = pageNext.x - toggleGroups.w - 2;
+
+        return marginTop;
+    }
+
+    protected int resizeFooter(GuiContainer gui) {
+        int footerY = y + h;
+        int footerHeight = 0;
+
+        if (grid.getPerPage() == 0) {
+            return 0;
         }
 
-        return (gui.width + gui.xSize) / 2  + 2;
-    }
-
-    public int getMarginTop(GuiContainer gui)
-    {
-        return 2;
-    }
-
-    public int getWidth(GuiContainer gui)
-    {
-        return LayoutManager.getSideWidth(gui) - getMarginLeft(gui);
-    }
-
-    public int getHeight(GuiContainer gui)
-    {
-        // - 19 = 2 + 16 + 1 -> input in bottom
-        return gui.height - getMarginTop(gui) - 19;
-    }
-
-    public String getLabelText()
-    {
-        return "(" + getPage() + "/" + Math.max(1, getNumPages()) + ")";
-    }
-
-    public void resize(GuiContainer gui)
-    {
-        final int marginLeft = getMarginLeft(gui);
-        final int marginTop = getMarginTop(gui);
-        final int width = getWidth(gui);
-        final int height = getHeight(gui);
-        final int buttonHeight = 16;
-        final int buttonWidth = 16;
-
-        pagePrev.w = pageNext.w = buttonWidth;
-        pagePrev.h = pageNext.h = buttonHeight;
-        pagePrev.y = pageNext.y = marginTop;
-
-        pagePrev.x = marginLeft;
-        pageNext.x = marginLeft + width - buttonWidth;
-
-        pageLabel.x = marginLeft + width / 2;
-        pageLabel.y = marginTop + 5;
-        pageLabel.text = getLabelText();
-
-
-        y = marginTop + buttonHeight + 2;
-        x = marginLeft;
-        w = width;
-        h = height - buttonHeight - 2;
-
-        grid.setGridSize(x, y, w, h);
-        grid.refresh(gui);
-
-    }
-
-    public void setVisible()
-    {
-        LayoutManager.addWidget(pagePrev);
-        LayoutManager.addWidget(pageNext);
-        LayoutManager.addWidget(pageLabel);
-    }
-
-    @Override
-    public void draw(int mousex, int mousey)
-    {
-        grid.draw(mousex, mousey);
-    }
-
-    @Override
-    public void postDraw(int mousex, int mousey) {
-        if (draggedStack != null) {
-            GuiContainerManager.drawItems.zLevel += 100;
-            GuiContainerManager.drawItem(mousex - 8, mousey - 8, draggedStack, true);
-            GuiContainerManager.drawItems.zLevel -= 100;
+        if (NEIClientConfig.showItemQuantityWidget() || !NEIClientConfig.isSearchWidgetCentered()) {
+            footerY = LayoutManager.quantity.y;
+            footerHeight = LayoutManager.quantity.h + PanelWidget.PADDING;
         }
+
+        if (NEIClientConfig.showHistoryPanelWidget()) {
+            historyPanel.x = x;
+
+            if (historyPanel.setPanelWidth(w) != 0) {
+                footerY = historyPanel.y = footerY - historyPanel.h;
+                footerHeight += historyPanel.h;
+            }
+
+        }
+
+        if (NEIClientConfig.showCraftablesPanelWidget()) {
+            craftablesPanel.x = x;
+
+            if (craftablesPanel.setPanelWidth(w) != 0) {
+                footerY = craftablesPanel.y = footerY - craftablesPanel.h;
+                footerHeight += craftablesPanel.h;
+            }
+        }
+
+        return footerHeight;
     }
 
     @Override
-    public void mouseDragged(int mousex, int mousey, int button, long heldTime) {
-        if (mouseDownSlot >= 0 && draggedStack == null && NEIClientUtils.getHeldItem() == null &&
-            NEIClientConfig.hasSMPCounterPart() && !GuiInfo.hasCustomSlots(NEIClientUtils.getGuiContainer())) {
-            ItemPanelSlot mouseOverSlot = getSlotMouseOver(mousex, mousey);
+    public void setVisible() {
+        super.setVisible();
 
-            if (mouseOverSlot == null || mouseOverSlot.slotIndex != mouseDownSlot || heldTime > 500) {
-                draggedStack = getDraggedStackWithQuantity(mouseDownSlot);
-                mouseDownSlot = -1;
+        if (grid.getPerPage() > 0) {
+
+            if (!CollapsibleItems.isEmpty() && !grid.isEmpty()) {
+                LayoutManager.addWidget(toggleGroups);
+            }
+
+            if (NEIClientConfig.showCraftablesPanelWidget()) {
+                LayoutManager.addWidget(craftablesPanel);
+            }
+
+            if (NEIClientConfig.showHistoryPanelWidget()) {
+                LayoutManager.addWidget(historyPanel);
             }
 
         }
     }
 
-    protected ItemStack getDraggedStackWithQuantity(int mouseDownSlot)
-    {
-        ItemStack stack = grid.getItem(mouseDownSlot);
+    @Override
+    public void resize(GuiContainer gui) {
+        super.resize(gui);
+        this.historyPanel.resize(gui);
+        this.craftablesPanel.resize(gui);
+    }
 
-        if (stack != null) {
-            int amount = NEIClientConfig.getItemQuantity();
-
-            if (amount == 0) {
-                amount = stack.getMaxStackSize();
-            }
-
-            return NEIServerUtils.copyStack(stack, amount);
-        }
-
-        return null;
+    protected ItemStack getDraggedStackWithQuantity(ItemStack itemStack) {
+        return ItemQuantityField.prepareStackWithQuantity(itemStack, 0);
     }
 
     @Override
-    public boolean handleClick(int mousex, int mousey, int button)
-    {
+    public List<String> handleItemTooltip(ItemStack itemstack, int mousex, int mousey, List<String> currenttip) {
 
-        if (handleClickExt(mousex, mousey, button))
-            return true;
+        if (!this.grid.forceExpand && !currenttip.isEmpty()) {
+            final ItemsPanelGridSlot hoverSlot = this.grid.getSlotMouseOver(mousex, mousey);
 
-        if (NEIClientUtils.getHeldItem() != null) {
-
-            if (!grid.contains(mousex, mousey)) {
-                return false;
+            if (hoverSlot != null && hoverSlot.groupIndex >= 0
+                    && NEIClientConfig.getBooleanSetting("inventory.collapsibleItems.customName")
+                    && !hoverSlot.extended
+                    && !"".equals(hoverSlot.displayName)) {
+                currenttip.clear();
+                currenttip.add(hoverSlot.displayName + GuiDraw.TOOLTIP_LINESPACE);
             }
-
-            if (NEIClientConfig.canPerformAction("delete") && NEIClientConfig.canPerformAction("item"))
-                if (button == 1)
-                    NEIClientUtils.decreaseSlotStack(-999);
-                else
-                    NEIClientUtils.deleteHeldItem();
-            else
-                NEIClientUtils.dropHeldItem();
-
-            return true;
         }
 
-        ItemPanelSlot hoverSlot = getSlotMouseOver(mousex, mousey);
-        if (hoverSlot != null) {
-
-            if (button == 2) {
-
-                if (hoverSlot.item != null) {
-                    draggedStack = getDraggedStackWithQuantity(hoverSlot.slotIndex);
-                }
-
-            } else {
-                mouseDownSlot = hoverSlot.slotIndex;
-            }
-            
-            return true;
-        }
-        return false;
+        return super.handleItemTooltip(itemstack, mousex, mousey, currenttip);
     }
 
     @Override
-    public boolean handleClickExt(int mouseX, int mouseY, int button)
-    {
-        if (ItemPanels.itemPanel.draggedStack != null) {
-            return ItemPanels.itemPanel.handleDraggedClick(mouseX, mouseY, button);
-        }
+    public boolean handleClick(int mousex, int mousey, int button) {
 
-        if (ItemPanels.bookmarkPanel.draggedStack != null) {
-            return ItemPanels.bookmarkPanel.handleDraggedClick(mouseX, mouseY, button);
-        }
-
-        return false;
-    }
-
-    protected boolean handleDraggedClick(int mouseX, int mouseY, int button)
-    {
-        if (draggedStack == null) {
-            return false;
-        }
-
-        if (handleFillFluidContainerClick(mouseX, mouseY, button)) {
-            return true;
-        }
-
-        if (handleSearchInputClick(mouseX, mouseY, button)) {
-            return true;
-        }
-
-        if (handleGUIContainerClick(mouseX, mouseY, button)) {
-            return true;
-        }
-
-        if (handleCheatItemClick(mouseX, mouseY, button)) {
-            return true;
-        }
-
-        final GuiContainer gui = NEIClientUtils.getGuiContainer();
-        if (mouseX < gui.guiLeft || mouseY < gui.guiTop || mouseX >= gui.guiLeft + gui.xSize || mouseY >= gui.guiTop + gui.ySize) {
-            draggedStack = null;
-        }
-
-        return true;
-    }
-
-    protected boolean handleFillFluidContainerClick(int mouseX, int mouseY, int button)
-    {
-
-        if (button == 2) {
-            return false;
-        }
-
-        ItemPanelSlot mouseOverSlot = ItemPanels.itemPanel.getSlotMouseOver(mouseX, mouseY);
-
-        if (mouseOverSlot == null) {
-            mouseOverSlot = ItemPanels.bookmarkPanel.getSlotMouseOver(mouseX, mouseY);
-        }
-
-        if (mouseOverSlot != null && draggedStack.getItem() instanceof IFluidContainerItem) {
-            FluidStack fluidStack = StackInfo.getFluid(mouseOverSlot.item);
-
-            if (fluidStack != null) {
-                final int stackSize = draggedStack.stackSize;
-
-                fluidStack = fluidStack.copy();
-
-                if (fluidStack.amount == 0) {
-                    fluidStack.amount = 1000;
-                }
-
-                if (mouseOverSlot.item.stackSize > 1) {
-                    fluidStack.amount *= mouseOverSlot.item.stackSize;
-                }
-
-                draggedStack.stackSize = 1;
-                ((IFluidContainerItem) draggedStack.getItem()).fill(draggedStack, fluidStack, true);
-                draggedStack.stackSize = stackSize;
-
-                if (button == 1 && ((IFluidContainerItem) draggedStack.getItem()).getFluid(draggedStack) != null) {
-                    ItemPanels.bookmarkPanel.addOrRemoveItem(draggedStack.copy());
-                }
+        if (button == 0 && !this.grid.forceExpand && NEIClientUtils.altKey()) {
+            final ItemsPanelGridSlot hoverSlot = this.grid.getSlotMouseOver(mousex, mousey);
 
+            if (hoverSlot != null && hoverSlot.groupIndex >= 0) {
+                CollapsibleItems.setExpanded(hoverSlot.groupIndex, !hoverSlot.extended);
+                this.grid.setItems(this.grid.rawItems);
+                NEIClientUtils.playClickSound();
+                return true;
             }
-
-            return true;
         }
 
-        return false;
-    }
-
-    protected boolean handleGUIContainerClick(int mouseX, int mouseY, int button)
-    {
-        final GuiContainer gui = NEIClientUtils.getGuiContainer();
-        boolean handled = false;
-
-        try {
-            GuiInfo.readLock.lock();
-            for (INEIGuiHandler handler : GuiInfo.guiHandlers) {
-                if (handler.handleDragNDrop(gui, mouseX, mouseY, draggedStack, button)) {
-                    handled = true;
-                    break;
-                }
-            }
-        } finally {
-            GuiInfo.readLock.unlock();
-        }
-
-        if (draggedStack.stackSize == 0) {
-            draggedStack = null;
-        }
-
-        return handled;
-    }
-
-    protected boolean handleCheatItemClick(int mouseX, int mouseY, int button)
-    {
-        final GuiContainer gui = NEIClientUtils.getGuiContainer();
-        final Slot overSlot = gui.getSlotAtPosition(mouseX, mouseY);
-
-        if (overSlot != null && overSlot.isItemValid(draggedStack)) {
-
-            if (NEIClientConfig.canCheatItem(draggedStack)) {
-                int contents = overSlot.getHasStack() ? overSlot.getStack().stackSize : 0;
-                final int add = button == 0 ? draggedStack.stackSize : 1;
-
-                if (overSlot.getHasStack() && !NEIServerUtils.areStacksSameType(draggedStack, overSlot.getStack())) {
-                    contents = 0;
-                }        
-
-                final int total = Math.min(contents + add, Math.min(overSlot.getSlotStackLimit(), draggedStack.getMaxStackSize()));
-
-                if (total > contents) {
-                    NEIClientUtils.setSlotContents(overSlot.slotNumber, NEIServerUtils.copyStack(draggedStack, total), true);
-                    NEICPH.sendGiveItem(NEIServerUtils.copyStack(draggedStack, total), false, false);
-                    draggedStack.stackSize -= total - contents;
-                }
-
-                if (draggedStack.stackSize == 0) {
-                    draggedStack = null;
-                }
-
-            } else {
-                draggedStack = null;
-            }
-
-            return true;
-        }
-
-        return false;
-    }
-
-    protected boolean handleSearchInputClick(int mouseX, int mouseY, int button)
-    {
-
-        if (searchField.contains(mouseX, mouseY)) {
-            final FluidStack fluidStack = StackInfo.getFluid(draggedStack);
-
-            if (fluidStack != null) {
-                searchField.setText(SPECIAL_REGEX_CHARS.matcher(fluidStack.getLocalizedName()).replaceAll("\\\\$0"));
-            } else {
-                searchField.setText(SPECIAL_REGEX_CHARS.matcher(draggedStack.getDisplayName()).replaceAll("\\\\$0"));
-            }
-
-            return true;
-        }
-
-        return false;
+        return super.handleClick(mousex, mousey, button);
     }
 
     @Override
-    public void mouseUp(int mousex, int mousey, int button) {
-        ItemPanelSlot hoverSlot = getSlotMouseOver(mousex, mousey);
+    public Map<String, String> handleHotkeys(int mousex, int mousey, Map<String, String> hotkeys) {
+        final ItemsPanelGridSlot hoverSlot = this.grid.getSlotMouseOver(mousex, mousey);
 
-        if (hoverSlot != null && hoverSlot.slotIndex == mouseDownSlot && draggedStack == null) {
-            ItemStack item = hoverSlot.item;
-
-            if (NEIController.manager.window instanceof GuiRecipe || !NEIClientConfig.canCheatItem(item)) {
-
-                if (button == 0)
-                    GuiCraftingRecipe.openRecipeGui("item", item);
-                else if (button == 1)
-                    GuiUsageRecipe.openRecipeGui("item", item);
-
-                mouseDownSlot = -1;
-                return;
-            }
-
-            NEIClientUtils.cheatItem(getDraggedStackWithQuantity(hoverSlot.slotIndex), button, -1);
+        if (!this.grid.forceExpand && hoverSlot != null && hoverSlot.groupIndex >= 0 && hoverSlot.groupSize > 1) {
+            final String message = hoverSlot.extended ? "itempanel.collapsed.hint.collapse"
+                    : "itempanel.collapsed.hint.expand";
+            hotkeys.put(
+                    NEIClientUtils.getKeyName(NEIClientUtils.ALT_HASH, NEIMouseUtils.MOUSE_BTN_LMB),
+                    NEIClientUtils.translate(message, hoverSlot.groupSize));
         }
 
-        mouseDownSlot = -1;
+        return super.handleHotkeys(mousex, mousey, hotkeys);
     }
 
-    @Override
-    public boolean onMouseWheel(int i, int mousex, int mousey) {
-        if (!contains(mousex, mousey))
-            return false;
-
-        grid.shiftPage(-i);
-        return true;
-    }
-
-    @Override
-    public boolean handleKeyPress(int keyID, char keyChar) {
-
-        if (keyID == NEIClientConfig.getKeyBinding("gui.next")) {
-            grid.shiftPage(1);
-            return true;
-        }
-
-        if (keyID == NEIClientConfig.getKeyBinding("gui.prev")) {
-            grid.shiftPage(-1);
-            return true;
-        }
-
-        return false;
-    }
-
-    @Override
-    public ItemStack getStackMouseOver(int mousex, int mousey) {
-        ItemPanelSlot slot = getSlotMouseOver(mousex, mousey);
-        return slot == null ? null : slot.item;
-    }
-
-    public ItemPanelSlot getSlotMouseOver(int mousex, int mousey)
-    {
-        return grid.getSlotMouseOver(mousex, mousey);
-    }
-
-    public int getPage() {
-        return grid.page + 1;
-    }
-
-    public int getNumPages() {
-        return grid.numPages;
-    }
-
-    @Override
-    public boolean contains(int px, int py)
-    {
-        return grid.contains(px, py);
+    public boolean containsWithSubpanels(int px, int py) {
+        return contains(px, py) || NEIClientConfig.showHistoryPanelWidget() && this.historyPanel.contains(px, py)
+                || NEIClientConfig.showCraftablesPanelWidget() && this.craftablesPanel.contains(px, py);
     }
 
 }

src/main/java/codechicken/nei/ItemPanels.java

@@ -1,6 +1,7 @@
 package codechicken.nei;
 
 public class ItemPanels {
+
     public static final ItemPanel itemPanel = new ItemPanel();
     public static final BookmarkPanel bookmarkPanel = new BookmarkPanel();
 }

src/main/java/codechicken/nei/ItemQuantityField.java

@@ -1,24 +1,94 @@
 package codechicken.nei;
 
-public class ItemQuantityField extends TextField
-{
+import net.minecraft.client.Minecraft;
+import net.minecraft.item.ItemStack;
+
+import org.lwjgl.input.Keyboard;
+
+import codechicken.nei.recipe.StackInfo;
+
+public class ItemQuantityField extends TextField {
+
     public ItemQuantityField(String ident) {
         super(ident);
         centered = true;
+        field.setDisabledTextColour(0xFF303030);
     }
 
-    public int intValue() {
-        return intValue(text());
+    @Override
+    protected void initInternalTextField() {
+        field = new FormattedTextField(Minecraft.getMinecraft().fontRenderer, 0, 0, 0, 0) {
+
+            {
+                setPlaceholder(NEIClientUtils.translate("itempanel.quantity.default"));
+            }
+
+            @Override
+            public String getText() {
+                String text = super.getText();
+                return !isFocused() && "0".equals(text) ? "" : text;
+            }
+
+            @Override
+            protected boolean beforeWrite(String text) {
+                if (text == null || text.isEmpty()) return true;
+                try {
+                    return Integer.parseInt(text) >= 0;
+                } catch (NumberFormatException e) {
+                    return false;
+                }
+            }
+
+            @Override
+            public boolean textboxKeyTyped(char keyChar, int keyID) {
+                if (!isFocused()) return false;
+
+                if (super.textboxKeyTyped(keyChar, keyID)) {
+                    return true;
+                } else if (keyID == Keyboard.KEY_DOWN) {
+                    setText(Integer.toString(Math.max(0, getInteger() - 1)));
+                    return true;
+                } else if (keyID == Keyboard.KEY_UP) {
+                    setText(Integer.toString(getInteger() + 1));
+                    return true;
+                }
+
+                return false;
+            }
+
+            private int getInteger() {
+                try {
+                    return Math.max(0, Integer.parseInt(text()));
+                } catch (NumberFormatException nfe) {
+                    return 0;
+                }
+            }
+
+        };
+        field.setMaxStringLength(maxSearchLength);
+        field.setCursorPositionZero();
     }
 
-    public int intValue(String s) {
+    private int getInteger() {
         try {
-            return Math.max(0, Integer.parseInt(s));
+            return Math.max(0, Integer.parseInt(text()));
         } catch (NumberFormatException nfe) {
             return 0;
         }
     }
 
+    public static ItemStack prepareStackWithQuantity(ItemStack stack, long amount) {
+        if (stack == null) {
+            return null;
+        }
+
+        if (amount == 0) {
+            amount = NEIClientUtils.getScrollMultiplier(stack);
+        }
+
+        return StackInfo.withAmount(stack, amount);
+    }
+
     @Override
     public void gainFocus() {
         if (text().equals("0")) {
@@ -33,6 +103,22 @@ public class ItemQuantityField extends TextField
 
     @Override
     public void onTextChange(String oldText) {
-        NEIClientUtils.setItemQuantity(intValue());
+        NEIClientUtils.setItemQuantity(getInteger());
     }
+
+    @Override
+    public boolean onMouseWheel(int i, int mx, int my) {
+        if (!contains(mx, my)) return false;
+        int multiplier = 1;
+
+        if (NEIClientUtils.shiftKey()) {
+            multiplier = 10;
+        } else if (NEIClientUtils.controlKey()) {
+            multiplier = 64;
+        }
+
+        setText(Integer.toString(Math.max(0, getInteger() + i * multiplier)));
+        return true;
+    }
+
 }

src/main/java/codechicken/nei/ItemSorter.java

@@ -1,24 +1,25 @@
 package codechicken.nei;
 
-import codechicken.lib.config.ConfigTagParent;
-import codechicken.nei.ItemList.ItemsLoadedCallback;
-import codechicken.nei.api.API;
-import codechicken.nei.api.ItemInfo;
-import codechicken.nei.config.GuiItemSorter;
-import codechicken.nei.config.OptionOpenGui;
-import net.minecraft.item.Item;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.StatCollector;
-
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
+
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.StatCollector;
+
+import codechicken.lib.config.ConfigTagParent;
+import codechicken.nei.api.API;
+import codechicken.nei.api.ItemInfo;
+import codechicken.nei.config.GuiItemSorter;
+import codechicken.nei.config.OptionOpenGui;
+
+public class ItemSorter implements Comparator<ItemStack> {
+
+    public static class SortEntry {
 
-public class ItemSorter implements Comparator<ItemStack>, ItemsLoadedCallback
-{
-    public static class SortEntry
-    {
         public final String name;
         public final Comparator<ItemStack> comparator;
 
@@ -32,7 +33,7 @@ public class ItemSorter implements Comparator<ItemStack>, ItemsLoadedCallback
         }
 
         public String getTooltip() {
-            String tipname = name+".tip";
+            String tipname = name + ".tip";
             String tip = StatCollector.translateToLocal(tipname);
             return !tip.equals(tipname) ? tip : null;
         }
@@ -42,12 +43,11 @@ public class ItemSorter implements Comparator<ItemStack>, ItemsLoadedCallback
     public static ArrayList<SortEntry> list = new ArrayList<>();
     public static final ItemSorter instance = new ItemSorter();
 
-    //optimisations
-    public HashMap<ItemStack, Integer> ordering = null;
+    // optimisations
+    public Map<ItemStack, Integer> ordering = new HashMap<>();
 
-    public static void sort(ArrayList<ItemStack> items) {
+    public static void sort(List<ItemStack> items) {
         try {
-//            items = (ArrayList<ItemStack>) items.parallelStream().sorted(instance).collect(Collectors.toList());
             items.sort(instance);
         } catch (Exception e) {
             NEIClientConfig.logger.error("Exception sorting item list", e);
@@ -56,26 +56,15 @@ public class ItemSorter implements Comparator<ItemStack>, ItemsLoadedCallback
 
     @Override
     public int compare(ItemStack o1, ItemStack o2) {
-        for(SortEntry e : list) {
+        for (SortEntry e : list) {
             int c = e.comparator.compare(o1, o2);
-            if(c != 0) return c;
+            if (c != 0) return c;
         }
         return 0;
     }
 
-    @Override
-    public void itemsLoaded() {
-        HashMap<ItemStack, Integer> newMap = new HashMap<>();
-        int i = 0;
-        for(ItemStack stack : ItemList.items)
-            newMap.put(stack, i++);
-        ordering = newMap;
-    }
-
     public static SortEntry find(String name) {
-        for(SortEntry e : entries)
-            if(e.name.equals(name))
-                return e;
+        for (SortEntry e : entries) if (e.name.equals(name)) return e;
 
         return null;
     }
@@ -89,11 +78,11 @@ public class ItemSorter implements Comparator<ItemStack>, ItemsLoadedCallback
         entries.add(e);
         ArrayList<SortEntry> nlist = new ArrayList<>(list);
         nlist.add(e);
-        list = nlist;//concurrency
+        list = nlist; // concurrency
     }
 
     public static void initConfig(ConfigTagParent tag) {
-        //minecraft, mod, id, default, meta, name
+        // minecraft, mod, id, default, meta, name
         API.addSortOption("nei.itemsort.minecraft", (o1, o2) -> {
             boolean m1 = "minecraft".equals(ItemInfo.itemOwners.get(o1.getItem()));
             boolean m2 = "minecraft".equals(ItemInfo.itemOwners.get(o2.getItem()));
@@ -102,8 +91,8 @@ public class ItemSorter implements Comparator<ItemStack>, ItemsLoadedCallback
         API.addSortOption("nei.itemsort.mod", (o1, o2) -> {
             String mod1 = ItemInfo.itemOwners.get(o1.getItem());
             String mod2 = ItemInfo.itemOwners.get(o2.getItem());
-            if(mod1 == null) return mod2 == null ? 0 : 1;
-            if(mod2 == null) return -1;
+            if (mod1 == null) return mod2 == null ? 0 : 1;
+            if (mod2 == null) return -1;
             return mod1.compareTo(mod2);
         });
         API.addSortOption("nei.itemsort.id", (o1, o2) -> {
@@ -114,8 +103,8 @@ public class ItemSorter implements Comparator<ItemStack>, ItemsLoadedCallback
         API.addSortOption("nei.itemsort.default", (o1, o2) -> {
             Integer order1 = instance.ordering.get(o1);
             Integer order2 = instance.ordering.get(o2);
-            if(order1 == null) return order2 == null ? 0 : 1;
-            if(order2 == null) return -1;
+            if (order1 == null) return order2 == null ? 0 : 1;
+            if (order2 == null) return -1;
             return compareInt(order1, order2);
         });
         API.addSortOption("nei.itemsort.damage", (o1, o2) -> {
@@ -124,44 +113,32 @@ public class ItemSorter implements Comparator<ItemStack>, ItemsLoadedCallback
             return compareInt(id1, id2);
         });
         API.addSortOption("nei.itemsort.name", (o1, o2) -> {
-            String name1 = ItemInfo.getSearchName(o1);
-            String name2 = ItemInfo.getSearchName(o2);
+            String name1 = o1.getDisplayName();
+            String name2 = o2.getDisplayName();
             return name1.compareTo(name2);
         });
         tag.getTag("inventory.itemsort").setDefaultValue(getSaveString(list));
-        API.addOption(new OptionOpenGui("inventory.itemsort", GuiItemSorter.class) {
-            @Override
-            public void useGlobals() {
-                super.useGlobals();
-                list = fromSaveString(activeTag().getValue());
-            }
-        });
-        ItemList.loadCallbacks.add(instance);
+        API.addOption(new OptionOpenGui("inventory.itemsort", GuiItemSorter.class));
     }
 
     public static String getSaveString(List<SortEntry> list) {
         StringBuilder sb = new StringBuilder();
-        for(SortEntry e : list) {
-            if(sb.length() > 0)
-                sb.append(',');
+        for (SortEntry e : list) {
+            if (sb.length() > 0) sb.append(',');
             sb.append(e.name);
         }
         return sb.toString();
     }
 
     public static ArrayList<SortEntry> fromSaveString(String s) {
-        if(s == null)
-            return new ArrayList<>(entries);
+        if (s == null) return new ArrayList<>(entries);
 
         ArrayList<SortEntry> list = new ArrayList<>();
-        for(String s2 : s.split(",")) {
+        for (String s2 : s.split(",")) {
             SortEntry e = find(s2.trim());
-            if(e != null)
-                list.add(e);
+            if (e != null) list.add(e);
         }
-        for(SortEntry e : entries)
-            if(!list.contains(e))
-                list.add(e);
+        for (SortEntry e : entries) if (!list.contains(e)) list.add(e);
 
         return list;
     }

src/main/java/codechicken/nei/ItemStackAmount.java

@@ -0,0 +1,143 @@
+package codechicken.nei;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Predicate;
+
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+
+import codechicken.nei.recipe.StackInfo;
+
+public class ItemStackAmount {
+
+    private final Map<NBTTagCompound, Long> itemMap = new LinkedHashMap<>();
+
+    public void putAll(ItemStackAmount amounts) {
+        for (Map.Entry<NBTTagCompound, Long> entry : amounts.itemMap.entrySet()) {
+            this.itemMap.put(entry.getKey(), entry.getValue() + this.itemMap.getOrDefault(entry.getKey(), 0L));
+        }
+    }
+
+    public void addAll(Iterable<ItemStack> items) {
+        for (ItemStack stack : items) {
+            add(stack);
+        }
+    }
+
+    public void add(ItemStack item) {
+        add(item, (long) StackInfo.getAmount(item));
+    }
+
+    public void add(ItemStack stack, Long value) {
+        if (stack == null || stack.getItem() == null) return;
+        final NBTTagCompound key = StackInfo.itemStackToNBT(stack, false);
+
+        if (key != null) {
+            this.itemMap.put(key, value + this.itemMap.getOrDefault(key, 0L));
+        }
+    }
+
+    public Long get(ItemStack stack) {
+        if (stack == null || stack.getItem() == null) return null;
+        final NBTTagCompound key = StackInfo.itemStackToNBT(stack, false);
+
+        return this.itemMap.get(key);
+    }
+
+    public void put(ItemStack stack, long value) {
+        if (stack == null || stack.getItem() == null) return;
+        final NBTTagCompound key = StackInfo.itemStackToNBT(stack, false);
+
+        if (key != null) {
+            this.itemMap.put(key, value);
+        }
+    }
+
+    public long getOrDefault(ItemStack stack, long defaultAmount) {
+        final Long e = get(stack);
+
+        return e == null ? defaultAmount : e;
+    }
+
+    public boolean contains(ItemStack stack) {
+        return get(stack) != null;
+    }
+
+    public void clear() {
+        this.itemMap.clear();
+    }
+
+    public Long remove(ItemStack stack) {
+        if (stack == null || stack.getItem() == null) return null;
+        final NBTTagCompound key = StackInfo.itemStackToNBT(stack, false);
+
+        return this.itemMap.remove(key);
+    }
+
+    public boolean removeIf(Predicate<Map.Entry<NBTTagCompound, Long>> predicate) {
+        return this.itemMap.entrySet().removeIf(predicate);
+    }
+
+    public Set<Map.Entry<NBTTagCompound, Long>> entrySet() {
+        return this.itemMap.entrySet();
+    }
+
+    public List<ItemStack> values() {
+        List<ItemStack> list = new ArrayList<>();
+
+        for (Map.Entry<NBTTagCompound, Long> entry : this.itemMap.entrySet()) {
+            list.add(StackInfo.loadFromNBT(entry.getKey(), Math.max(0, entry.getValue())));
+        }
+
+        return list;
+    }
+
+    public int size() {
+        return this.itemMap.size();
+    }
+
+    public boolean isEmpty() {
+        return this.itemMap.isEmpty();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+
+        if (obj instanceof ItemStackAmount items) {
+            return this.itemMap.equals(items.itemMap);
+        }
+
+        return false;
+    }
+
+    public static ItemStackAmount of(ItemStackAmount map) {
+        ItemStackAmount result = new ItemStackAmount();
+        result.itemMap.putAll(map.itemMap);
+        return result;
+    }
+
+    public static ItemStackAmount of(ItemStackMap<Long> map) {
+        ItemStackAmount result = new ItemStackAmount();
+
+        for (ItemStackMap.Entry<Long> entry : map.entries()) {
+            result.put(entry.key, entry.value);
+        }
+
+        return result;
+    }
+
+    public static ItemStackAmount of(Iterable<ItemStack> items) {
+        ItemStackAmount result = new ItemStackAmount();
+
+        for (ItemStack stack : items) {
+            result.add(stack);
+        }
+
+        return result;
+    }
+
+}

src/main/java/codechicken/nei/ItemStackMap.java

@@ -1,30 +1,38 @@
 package codechicken.nei;
 
-import com.google.common.base.Objects;
-import net.minecraft.item.Item;
-import net.minecraft.item.ItemStack;
-import net.minecraft.nbt.NBTTagCompound;
-
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
 import static codechicken.lib.inventory.InventoryUtils.actualDamage;
 import static codechicken.lib.inventory.InventoryUtils.newItemStack;
 import static net.minecraftforge.oredict.OreDictionary.WILDCARD_VALUE;
 
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
+
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+
+import com.google.common.base.Objects;
+
 /**
  * A maplike class for ItemStack keys with wildcard damage/NBT. Optimised for lookup
  */
-public class ItemStackMap<T>
-{
-    public static class StackMetaKey
-    {
+public class ItemStackMap<T> {
+
+    public static class StackMetaKey {
+
         public final int damage;
         public final NBTTagCompound tag;
+        private final int hashCode;
 
         public StackMetaKey(int damage, NBTTagCompound tag) {
+            if (tag != null && tag.hasNoTags()) {
+                tag = null;
+            }
+            this.hashCode = Objects.hashCode(damage, tag);
             this.damage = damage;
             this.tag = tag;
         }
@@ -34,19 +42,17 @@ public class ItemStackMap<T>
         }
 
         public int hashCode() {
-            return Objects.hashCode(damage, tag);
+            return this.hashCode;
         }
 
         public boolean equals(Object o) {
-            if (!(o instanceof StackMetaKey))
-                return false;
-            StackMetaKey t = (StackMetaKey) o;
+            if (!(o instanceof StackMetaKey t)) return false;
             return damage == t.damage && Objects.equal(tag, t.tag);
         }
     }
 
-    public static class Entry<T>
-    {
+    public static class Entry<T> {
+
         public final ItemStack key;
         public final T value;
 
@@ -56,8 +62,8 @@ public class ItemStackMap<T>
         }
     }
 
-    public class DetailMap
-    {
+    public class DetailMap {
+
         private boolean hasWildcard;
         private T wildcard;
         private HashMap<Integer, T> damageMap;
@@ -66,8 +72,7 @@ public class ItemStackMap<T>
         private int size;
 
         public T get(ItemStack key) {
-            if (wildcard != null)
-                return wildcard;
+            if (wildcard != null) return wildcard;
 
             if (damageMap != null) {
                 final T ret = damageMap.get(actualDamage(key));
@@ -77,8 +82,7 @@ public class ItemStackMap<T>
                 final T ret = tagMap.get(key.stackTagCompound);
                 if (ret != null) return ret;
             }
-            if (metaMap != null)
-                return metaMap.get(new StackMetaKey(key));
+            if (metaMap != null) return metaMap.get(new StackMetaKey(key));
 
             return null;
         }
@@ -129,63 +133,50 @@ public class ItemStackMap<T>
         }
 
         private void updateSize() {
-            int newSize = (hasWildcard ? 1 : 0) +
-                    (metaMap != null ? metaMap.size() : 0) +
-                    (tagMap != null ? tagMap.size() : 0) +
-                    (damageMap != null ? damageMap.size() : 0);
+            int newSize = (hasWildcard ? 1 : 0) + (metaMap != null ? metaMap.size() : 0)
+                    + (tagMap != null ? tagMap.size() : 0)
+                    + (damageMap != null ? damageMap.size() : 0);
 
-            if(newSize != size) {
-                ItemStackMap.this.size += newSize-size;
+            if (newSize != size) {
+                ItemStackMap.this.size += newSize - size;
                 size = newSize;
             }
         }
 
         public void addKeys(Item item, List<ItemStack> list) {
-            if (wildcard != null)
-                list.add(wildcard(item));
+            if (wildcard != null) list.add(wildcard(item));
             if (damageMap != null)
-                for (int damage : damageMap.keySet())
-                    list.add(newItemStack(item, 1, damage, WILDCARD_TAG));
+                for (int damage : damageMap.keySet()) list.add(newItemStack(item, 1, damage, WILDCARD_TAG));
             if (tagMap != null)
-                for (NBTTagCompound tag : tagMap.keySet())
-                    list.add(newItemStack(item, 1, WILDCARD_VALUE, tag));
+                for (NBTTagCompound tag : tagMap.keySet()) list.add(newItemStack(item, 1, WILDCARD_VALUE, tag));
             if (metaMap != null)
-                for (StackMetaKey key : metaMap.keySet())
-                    list.add(newItemStack(item, 1, key.damage, key.tag));
+                for (StackMetaKey key : metaMap.keySet()) list.add(newItemStack(item, 1, key.damage, key.tag));
         }
 
         public void addValues(List<T> list) {
-            if (wildcard != null)
-                list.add(wildcard);
-            if (damageMap != null)
-                list.addAll(damageMap.values());
-            if (tagMap != null)
-                list.addAll(tagMap.values());
-            if (metaMap != null)
-                list.addAll(metaMap.values());
+            if (wildcard != null) list.add(wildcard);
+            if (damageMap != null) list.addAll(damageMap.values());
+            if (tagMap != null) list.addAll(tagMap.values());
+            if (metaMap != null) list.addAll(metaMap.values());
         }
 
         public void addEntries(Item item, List<Entry<T>> list) {
-            if (wildcard != null)
-                list.add(new Entry<>(newItemStack(item, 1, WILDCARD_VALUE, WILDCARD_TAG), wildcard));
-            if (damageMap != null)
-                for (Map.Entry<Integer, T> entry : damageMap.entrySet())
-                    list.add(new Entry<>(newItemStack(item, 1, entry.getKey(), WILDCARD_TAG), entry.getValue()));
-            if (tagMap != null)
-                for (Map.Entry<NBTTagCompound, T> entry : tagMap.entrySet())
-                    list.add(new Entry<>(newItemStack(item, 1, WILDCARD_VALUE, entry.getKey()), entry.getValue()));
-            if (metaMap != null)
-                for (Map.Entry<StackMetaKey, T> entry : metaMap.entrySet())
-                    list.add(new Entry<>(newItemStack(item, 1, entry.getKey().damage, entry.getKey().tag), entry.getValue()));
+            if (wildcard != null) list.add(new Entry<>(newItemStack(item, 1, WILDCARD_VALUE, WILDCARD_TAG), wildcard));
+            if (damageMap != null) for (Map.Entry<Integer, T> entry : damageMap.entrySet())
+                list.add(new Entry<>(newItemStack(item, 1, entry.getKey(), WILDCARD_TAG), entry.getValue()));
+            if (tagMap != null) for (Map.Entry<NBTTagCompound, T> entry : tagMap.entrySet())
+                list.add(new Entry<>(newItemStack(item, 1, WILDCARD_VALUE, entry.getKey()), entry.getValue()));
+            if (metaMap != null) for (Map.Entry<StackMetaKey, T> entry : metaMap.entrySet()) list.add(
+                    new Entry<>(newItemStack(item, 1, entry.getKey().damage, entry.getKey().tag), entry.getValue()));
         }
     }
 
     public static int getKeyType(int damage, NBTTagCompound tag) {
-             int i = 0;
-             if (isWildcard(damage)) i = 1;
-             if (isWildcard(tag)) i |= 2;
-             return i;
-         }
+        int i = 0;
+        if (isWildcard(damage)) i = 1;
+        if (isWildcard(tag)) i |= 2;
+        return i;
+    }
 
     public static ItemStack wildcard(Item item) {
         return newItemStack(item, 1, WILDCARD_VALUE, WILDCARD_TAG);
@@ -206,7 +197,7 @@ public class ItemStackMap<T>
         WILDCARD_TAG.setBoolean("*", true);
     }
 
-    private final HashMap<Item, DetailMap> itemMap = new HashMap<>();
+    private final Map<Item, DetailMap> itemMap = new LinkedHashMap<>();
     private int size;
 
     public T get(ItemStack key) {
@@ -218,23 +209,38 @@ public class ItemStackMap<T>
         return map == null ? null : map.get(key);
     }
 
-    public void put(ItemStack key, T value) {
-        if (key == null || key.getItem() == null)
-            return;
+    public T getOrDefault(ItemStack key, T defaultValue) {
+        T e = get(key);
+        return e == null ? defaultValue : e;
+    }
 
-        DetailMap map = itemMap.get(key.getItem());
-        if (map == null)
-            itemMap.put(key.getItem(), map = new DetailMap());
+    public void put(ItemStack key, T value) {
+        if (key == null || key.getItem() == null) return;
+
+        DetailMap map = itemMap.computeIfAbsent(key.getItem(), k -> new DetailMap());
         map.put(key, value);
     }
 
+    public T computeIfAbsent(ItemStack key, Function<ItemStack, ? extends T> mappingFunction) {
+        T value;
+        if ((value = get(key)) == null) {
+            T newValue;
+            if ((newValue = mappingFunction.apply(key)) != null) {
+                put(key, newValue);
+                return newValue;
+            }
+        }
+
+        return value;
+    }
+
     public void clear() {
         itemMap.clear();
+        size = 0;
     }
 
     public T remove(ItemStack key) {
-        if (key == null || key.getItem() == null)
-            return null;
+        if (key == null || key.getItem() == null) return null;
 
         DetailMap map = itemMap.get(key.getItem());
         return map == null ? null : map.remove(key);
@@ -242,22 +248,19 @@ public class ItemStackMap<T>
 
     public List<ItemStack> keys() {
         LinkedList<ItemStack> list = new LinkedList<>();
-        for (Map.Entry<Item, DetailMap> entry : itemMap.entrySet())
-            entry.getValue().addKeys(entry.getKey(), list);
+        for (Map.Entry<Item, DetailMap> entry : itemMap.entrySet()) entry.getValue().addKeys(entry.getKey(), list);
         return list;
     }
 
     public List<T> values() {
         LinkedList<T> list = new LinkedList<>();
-        for (DetailMap map : itemMap.values())
-            map.addValues(list);
+        for (DetailMap map : itemMap.values()) map.addValues(list);
         return list;
     }
 
     public List<Entry<T>> entries() {
         LinkedList<Entry<T>> list = new LinkedList<>();
-        for (Map.Entry<Item, DetailMap> entry : itemMap.entrySet())
-            entry.getValue().addEntries(entry.getKey(), list);
+        for (Map.Entry<Item, DetailMap> entry : itemMap.entrySet()) entry.getValue().addEntries(entry.getKey(), list);
         return list;
     }
 

src/main/java/codechicken/nei/ItemStackSet.java

@@ -1,27 +1,25 @@
 package codechicken.nei;
 
-import codechicken.nei.api.ItemFilter;
 import net.minecraft.block.Block;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 
-public class ItemStackSet extends ItemStackMap<ItemStack> implements ItemFilter
-{
+import codechicken.nei.api.ItemFilter;
+
+public class ItemStackSet extends ItemStackMap<ItemStack> implements ItemFilter {
+
     public ItemStackSet with(ItemStack... items) {
-        for(ItemStack item : items)
-            add(item);
+        for (ItemStack item : items) add(item);
         return this;
     }
 
     public ItemStackSet with(Item... items) {
-        for(Item item : items)
-            add(ItemStackMap.wildcard(item));
+        for (Item item : items) add(ItemStackMap.wildcard(item));
         return this;
     }
 
     public ItemStackSet with(Block... blocks) {
-        for(Block block : blocks)
-            add(ItemStackMap.wildcard(Item.getItemFromBlock(block)));
+        for (Block block : blocks) add(ItemStackMap.wildcard(Item.getItemFromBlock(block)));
         return this;
     }
 
@@ -29,6 +27,16 @@ public class ItemStackSet extends ItemStackMap<ItemStack> implements ItemFilter
         put(item, item);
     }
 
+    public ItemStackSet addAll(Iterable<ItemStack> items) {
+        for (ItemStack item : items) add(item);
+        return this;
+    }
+
+    public ItemStackSet removeAll(Iterable<ItemStack> items) {
+        for (ItemStack item : items) remove(item);
+        return this;
+    }
+
     public boolean contains(ItemStack item) {
         return get(item) != null;
     }

src/main/java/codechicken/nei/ItemZoom.java

@@ -0,0 +1,282 @@
+package codechicken.nei;
+
+import java.awt.Point;
+import java.util.List;
+
+import net.minecraft.block.Block;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.item.ItemStack;
+
+import org.lwjgl.input.Keyboard;
+import org.lwjgl.opengl.GL11;
+
+import codechicken.lib.gui.GuiDraw;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.guihook.IContainerInputHandler;
+import codechicken.nei.recipe.StackInfo;
+
+public class ItemZoom extends Widget implements IContainerInputHandler {
+
+    public static final int MIN_ZOOM = 0;
+    public static final int MAX_ZOOM = 1000;
+
+    private static final int MIN_SCALE = 2;
+    private static final int SLOT_SIZE = 16;
+
+    private Boolean previousKeyboardRepeatEnabled = null;
+
+    private ItemStack stack = null;
+    private String displayName = "";
+    private int availableAreaWidth = 0;
+    private float xPosition = 0;
+    private float yPosition = 0;
+    private float scale = 1;
+
+    public ItemZoom() {
+        GuiContainerManager.addInputHandler(this);
+    }
+
+    @Override
+    public void draw(int mx, int my) {
+
+        if (this.stack != null && this.availableAreaWidth >= SLOT_SIZE * 2
+                && (NEIClientConfig.getBooleanSetting("inventory.itemzoom.enabled")
+                        || KeyManager.isKeyDown("itemzoom.hold"))
+                && GuiContainerManager.shouldShowTooltip(NEIClientUtils.getGuiContainer())) {
+            final float inverseScaleFactor = 1.0f / this.scale;
+            final float screenScale = getScreenScale();
+            final float size = SLOT_SIZE * this.scale;
+            int shiftText = 10;
+
+            GL11.glPushMatrix();
+            GL11.glScaled(screenScale, screenScale, 1);
+            GL11.glScaled(this.scale, this.scale, 2);
+            GL11.glTranslated(this.xPosition * inverseScaleFactor, this.yPosition * inverseScaleFactor, 0);
+
+            GuiContainerManager.drawItem(0, 0, this.stack, false, "");
+
+            GL11.glPopMatrix();
+
+            GL11.glPushAttrib(GL11.GL_ENABLE_BIT | GL11.GL_COLOR_BUFFER_BIT | GL11.GL_LIGHTING_BIT);
+            GuiContainerManager.enable2DRender();
+
+            if (NEIClientConfig.getBooleanSetting("inventory.itemzoom.showName")) {
+                String dispalyName = NEIClientUtils
+                        .cropText(GuiDraw.fontRenderer, this.displayName, this.availableAreaWidth);
+                GuiDraw.drawStringC(
+                        dispalyName,
+                        (int) ((this.xPosition + size / 2) * screenScale),
+                        (int) ((this.yPosition + size) * screenScale) + shiftText,
+                        NEIClientConfig.getSetting("inventory.itemzoom.nameColor").getHexValue());
+                shiftText += GuiDraw.fontRenderer.FONT_HEIGHT;
+            }
+
+            if (NEIClientConfig.getBooleanSetting("inventory.itemzoom.enabled")
+                    && NEIClientConfig.getBooleanSetting("inventory.itemzoom.helpText")) {
+                String keyName = KeyManager.getKeyName("itemzoom.toggle", NEIClientUtils.SHIFT_HASH);
+
+                if (keyName != null) {
+                    String helpText = NEIClientUtils.translate("itemzoom.toggle", keyName);
+                    List<String> lines = GuiDraw.fontRenderer
+                            .listFormattedStringToWidth(helpText, this.availableAreaWidth);
+
+                    for (String line : lines) {
+                        GuiDraw.drawStringC(
+                                line,
+                                (int) ((this.xPosition + size / 2) * screenScale),
+                                (int) ((this.yPosition + size) * screenScale) + 10 + shiftText,
+                                0x66555555);
+                        shiftText += GuiDraw.fontRenderer.FONT_HEIGHT;
+                    }
+                }
+            }
+
+            GL11.glPopAttrib();
+        }
+    }
+
+    public void resize(GuiContainer gui) {
+        final ItemStack stack = getStackMouseOver(gui);
+
+        if (stack != null && (!NEIClientConfig.getBooleanSetting("inventory.itemzoom.onlySolid")
+                || Block.getBlockFromItem(stack.getItem()).getMaterial().isSolid())) {
+            final float screenScale = 1.0f / getScreenScale();
+            final float availableAreaWidth = (gui.width - gui.xSize) / 2 * screenScale;
+            final float availableAreaHeight = gui.height * screenScale;
+            final Point mouse = GuiDraw.getMousePosition();
+
+            this.scale = Math.round(getZoomAmount(gui) * getPointSize(gui) / SLOT_SIZE);
+            this.yPosition = (availableAreaHeight - this.scale * SLOT_SIZE) / 2;
+            this.xPosition = (availableAreaWidth - this.scale * SLOT_SIZE) / 2;
+            this.availableAreaWidth = (int) (availableAreaWidth / screenScale);
+
+            final float rightSideShift = gui.width * screenScale - availableAreaWidth;
+            final boolean leftSideFree = availableAreaWidth / screenScale < mouse.x;
+            final boolean rightSideFree = mouse.x < gui.width - availableAreaWidth / screenScale;
+
+            final boolean showOnRight = leftSideFree && rightSideFree ? !preferLeftSide() : !leftSideFree;
+
+            if (showOnRight) {
+                this.xPosition += rightSideShift;
+            }
+
+            try {
+                this.displayName = stack.getDisplayName();
+            } catch (Throwable ignored) {
+                this.displayName = "Unnamed";
+            }
+
+            // Copying the stack copies its whole NBT, so it is only done when the hovered stack changes
+            final boolean sameStack = this.stack != null && this.stack.isItemEqual(stack)
+                    && ItemStack.areItemStackTagsEqual(this.stack, stack);
+            if (!sameStack) {
+                this.stack = StackInfo.withAmount(stack, 0);
+            }
+        } else {
+            this.stack = null;
+            this.displayName = "";
+        }
+    }
+
+    private boolean preferLeftSide() {
+        switch (NEIClientConfig.getIntSetting("inventory.itemzoom.preferredSide")) {
+            case 1:
+                return true;
+            case 2:
+                return false;
+        }
+
+        final int leftCount = NEIClientConfig.isBookmarkPanelHidden()
+                || ItemPanels.bookmarkPanel.getGrid().getPerPage() == 0 ? 0 : ItemPanels.bookmarkPanel.getGrid().size();
+        final int rightCount = ItemPanels.itemPanel.getGrid().getPerPage() == 0 ? 0
+                : ItemPanels.itemPanel.getGrid().size();
+
+        return leftCount <= rightCount;
+    }
+
+    private float getPointSize(GuiContainer gui) {
+        final float screenScale = 1.0f / getScreenScale();
+        final float availableAreaWidth = (gui.width - (gui.xSize + gui.width) / 2) * screenScale;
+        return availableAreaWidth / MAX_ZOOM;
+    }
+
+    private float getScreenScale() {
+        return Minecraft.getMinecraft().currentScreen.width * 1f / Minecraft.getMinecraft().displayWidth;
+    }
+
+    private int getZoomAmount(GuiContainer gui) {
+        return Math.max(
+                Math.round(SLOT_SIZE * MIN_SCALE / getPointSize(gui)),
+                NEIClientConfig.getIntSetting("inventory.itemzoom.zoom"));
+    }
+
+    private void increaseZoom(GuiContainer gui) {
+        final float pointSize = getPointSize(gui);
+        final float scale = Math.round(getZoomAmount(gui) * pointSize / SLOT_SIZE);
+
+        NEIClientConfig.setIntSetting(
+                "inventory.itemzoom.zoom",
+                Math.min(MAX_ZOOM, Math.round((scale + 1) / (pointSize / SLOT_SIZE))));
+    }
+
+    private void decreaseZoom(GuiContainer gui) {
+        final float pointSize = getPointSize(gui);
+        final float scale = Math.round(getZoomAmount(gui) * pointSize / SLOT_SIZE);
+
+        NEIClientConfig.setIntSetting(
+                "inventory.itemzoom.zoom",
+                Math.max(MIN_ZOOM, Math.round(Math.max(MIN_SCALE, scale - 1) / (pointSize / SLOT_SIZE))));
+    }
+
+    private ItemStack getStackMouseOver(GuiContainer gui) {
+
+        if (NEIClientConfig.getBooleanSetting("inventory.itemzoom.neiOnly")) {
+            final Point mouse = GuiDraw.getMousePosition();
+            ItemStack stack = ItemPanels.itemPanel.getStackMouseOver(mouse.x, mouse.y);
+
+            if (stack == null) {
+                stack = ItemPanels.bookmarkPanel.getStackMouseOver(mouse.x, mouse.y);
+            }
+
+            if (stack == null) {
+                stack = ItemPanels.itemPanel.historyPanel.getStackMouseOver(mouse.x, mouse.y);
+            }
+
+            return stack;
+        }
+
+        return GuiContainerManager.getStackMouseOver(gui);
+    }
+
+    @Override
+    public boolean keyTyped(GuiContainer gui, char keyChar, int keyCode) {
+        return false;
+    }
+
+    @Override
+    public boolean mouseClicked(GuiContainer gui, int mousex, int mousey, int button) {
+        return false;
+    }
+
+    @Override
+    public void onKeyTyped(GuiContainer gui, char keyChar, int keyID) {}
+
+    @Override
+    public boolean lastKeyTyped(GuiContainer gui, char keyChar, int keyID) {
+        return false;
+    }
+
+    @Override
+    public boolean onHotkeyPressed(GuiContainer gui) {
+
+        if (KeyManager.isHashDown("itemzoom.toggle", NEIClientUtils.SHIFT_HASH)) {
+            NEIClientConfig.getSetting("inventory.itemzoom.enabled")
+                    .setBooleanValue(!NEIClientConfig.getBooleanSetting("inventory.itemzoom.enabled"));
+            return true;
+        }
+
+        if (this.stack != null && KeyManager.isKeyDown("itemzoom.hold")) {
+            return true;
+        }
+
+        if (this.stack != null && KeyManager.isKeyDown("itemzoom.zoom_in")) {
+            increaseZoom(gui);
+            previousKeyboardRepeatEnabled = Keyboard.areRepeatEventsEnabled();
+            Keyboard.enableRepeatEvents(true);
+            return true;
+        }
+
+        if (this.stack != null && KeyManager.isKeyDown("itemzoom.zoom_out")) {
+            decreaseZoom(gui);
+            previousKeyboardRepeatEnabled = Keyboard.areRepeatEventsEnabled();
+            Keyboard.enableRepeatEvents(true);
+            return true;
+        }
+
+        if (previousKeyboardRepeatEnabled != null) {
+            Keyboard.enableRepeatEvents(previousKeyboardRepeatEnabled);
+            previousKeyboardRepeatEnabled = null;
+        }
+
+        return false;
+    }
+
+    @Override
+    public void onMouseClicked(GuiContainer gui, int mousex, int mousey, int button) {}
+
+    @Override
+    public void onMouseUp(GuiContainer gui, int mousex, int mousey, int button) {}
+
+    @Override
+    public boolean mouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
+        return false;
+    }
+
+    @Override
+    public void onMouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {}
+
+    @Override
+    public void onMouseDragged(GuiContainer gui, int mousex, int mousey, int button, long heldTime) {}
+
+}

src/main/java/codechicken/nei/ItemsGrid.java

@@ -1,20 +1,268 @@
 package codechicken.nei;
 
+import java.awt.Color;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.ScaledResolution;
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.client.renderer.OpenGlHelper;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.client.shader.Framebuffer;
+import net.minecraft.item.ItemStack;
+
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL30;
+
 import codechicken.lib.vec.Rectangle4i;
 import codechicken.nei.api.GuiInfo;
+import codechicken.nei.api.INEIGuiHandler;
 import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.recipe.Recipe.RecipeId;
 import codechicken.nei.recipe.StackInfo;
-import codechicken.nei.ItemPanel.ItemPanelSlot;
-import net.minecraft.client.gui.inventory.GuiContainer;
-import net.minecraft.item.ItemStack;
 
-import java.util.ArrayList;
+public abstract class ItemsGrid<T extends ItemsGrid.ItemsGridSlot, M extends ItemsGrid.MouseContext> {
 
-import static codechicken.lib.gui.GuiDraw.drawRect;
+    protected static class ScreenCapture {
 
-public class ItemsGrid
-{
-    public static final int SLOT_SIZE = 18;
+        private long nextCacheRefresh = 0;
+        private final Framebuffer framebuffer;
+
+        public ScreenCapture() {
+            this.framebuffer = new Framebuffer(1, 1, true);
+            this.framebuffer.setFramebufferColor(0.0F, 0.0F, 0.0F, 0.0F);
+            Minecraft.getMinecraft().getFramebuffer().bindFramebuffer(false);
+        }
+
+        protected int getGridRenderingCacheFPS(int mode) {
+            return mode == 1 ? NEIClientConfig.getIntSetting("inventory.gridRenderingCacheFPS") : 0;
+        }
+
+        public boolean needRefresh(int mode) {
+            final Minecraft minecraft = Minecraft.getMinecraft();
+            return this.nextCacheRefresh == 0 || this.framebuffer.framebufferWidth != minecraft.displayWidth
+                    || framebuffer.framebufferHeight != minecraft.displayHeight
+                    || getGridRenderingCacheFPS(mode) > 0 && this.nextCacheRefresh < System.currentTimeMillis();
+        }
+
+        public void refreshBuffer() {
+            this.nextCacheRefresh = 0;
+        }
+
+        public void captureScreen(Runnable callback, int mode) {
+            GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
+
+            resetFramebuffer();
+            this.framebuffer.bindFramebuffer(false);
+
+            /* Set up some rendering state needed for items to work correctly */
+            GL11.glDisable(GL11.GL_BLEND);
+            GL11.glDepthMask(true);
+            OpenGlHelper.glBlendFunc(
+                    GL11.GL_SRC_ALPHA,
+                    GL11.GL_ONE_MINUS_SRC_ALPHA,
+                    GL11.GL_SRC_ALPHA,
+                    GL11.GL_ONE_MINUS_SRC_ALPHA);
+            GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
+
+            callback.run();
+
+            GL11.glPopAttrib();
+
+            Minecraft.getMinecraft().getFramebuffer().bindFramebuffer(false);
+            this.nextCacheRefresh = System.currentTimeMillis() + (1000 / Math.max(1, getGridRenderingCacheFPS(mode)));
+        }
+
+        private void resetFramebuffer() {
+            final Minecraft minecraft = Minecraft.getMinecraft();
+
+            if (this.framebuffer.framebufferWidth != minecraft.displayWidth
+                    || framebuffer.framebufferHeight != minecraft.displayHeight) {
+                this.framebuffer.createBindFramebuffer(minecraft.displayWidth, minecraft.displayHeight);
+                this.framebuffer.setFramebufferFilter(GL11.GL_NEAREST);
+            } else {
+                this.framebuffer.framebufferClear();
+            }
+
+            // Copy stencil values (required by mui2)
+            OpenGlHelper.func_153171_g(GL30.GL_READ_FRAMEBUFFER, minecraft.getFramebuffer().framebufferObject);
+            OpenGlHelper.func_153171_g(GL30.GL_DRAW_FRAMEBUFFER, this.framebuffer.framebufferObject);
+            GL30.glBlitFramebuffer(
+                    0,
+                    0,
+                    minecraft.displayWidth,
+                    minecraft.displayHeight,
+                    0,
+                    0,
+                    minecraft.displayWidth,
+                    minecraft.displayHeight,
+                    GL11.GL_DEPTH_BUFFER_BIT | GL11.GL_STENCIL_BUFFER_BIT,
+                    GL11.GL_NEAREST);
+        }
+
+        public void renderCapturedScreen() {
+            this.framebuffer.bindFramebufferTexture();
+
+            final Tessellator tessellator = Tessellator.instance;
+            final Minecraft minecraft = Minecraft.getMinecraft();
+            final ScaledResolution scaledresolution = new ScaledResolution(
+                    minecraft,
+                    minecraft.displayWidth,
+                    minecraft.displayHeight);
+
+            /* Set up some rendering state needed for items to work correctly */
+            GL11.glEnable(GL11.GL_BLEND);
+            OpenGlHelper
+                    .glBlendFunc(GL11.GL_ONE, GL11.GL_ONE_MINUS_SRC_ALPHA, GL11.GL_ONE, GL11.GL_ONE_MINUS_SRC_ALPHA);
+            GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
+            GL11.glEnable(GL11.GL_TEXTURE_2D);
+
+            tessellator.startDrawingQuads();
+
+            tessellator.addVertexWithUV(0, scaledresolution.getScaledHeight_double(), 0.0, 0, 0);
+            tessellator.addVertexWithUV(
+                    scaledresolution.getScaledWidth_double(),
+                    scaledresolution.getScaledHeight_double(),
+                    0.0,
+                    1,
+                    0);
+            tessellator.addVertexWithUV(scaledresolution.getScaledWidth_double(), 0, 0.0, 1, 1);
+            tessellator.addVertexWithUV(0, 0, 0, 0, 1);
+
+            tessellator.draw();
+
+            this.framebuffer.unbindFramebufferTexture();
+        }
+
+    }
+
+    public static class ItemsGridSlot {
+
+        protected static final float DEFAULT_SLOT_SIZE = 18f;
+        protected static final float LINE_WIDTH = 0.75f;
+
+        public final ItemStack item;
+        public final int slotIndex;
+        public final int itemIndex;
+
+        public Color borderColor = Color.BLACK;
+
+        public boolean borderLeft = false;
+        public boolean borderTop = false;
+        public boolean borderRight = false;
+        public boolean borderBottom = false;
+
+        public ItemsGridSlot(int slotIndex, int itemIndex, ItemStack itemStack) {
+            this.slotIndex = slotIndex;
+            this.itemIndex = itemIndex;
+            this.item = itemStack;
+        }
+
+        public ItemStack getItemStack() {
+            return this.item;
+        }
+
+        public <M extends MouseContext> void beforeDraw(Rectangle4i rect, M mouseContext) {
+            if (mouseContext != null && mouseContext.slotIndex == this.slotIndex) {
+                NEIClientUtils.drawRect(rect.x, rect.y, rect.w, rect.h, HIGHLIGHT_COLOR);
+            }
+        }
+
+        public <M extends MouseContext> void afterDraw(Rectangle4i rect, M mouseContext) {}
+
+        public RecipeId getRecipeId() {
+            return null;
+        }
+
+        public void drawItem(Rectangle4i rect) {
+            drawItem(getItemStack(), rect);
+        }
+
+        protected void drawItem(ItemStack stack, Rectangle4i rect) {
+
+            if (rect.w != DEFAULT_SLOT_SIZE) {
+                final float panelFactor = (rect.w - 2) / (DEFAULT_SLOT_SIZE - 2);
+                GL11.glTranslatef(rect.x + 1, rect.y + 1, 0);
+                GL11.glScaled(panelFactor, panelFactor, 1);
+
+                GuiContainerManager.drawItem(0, 0, stack, true, "");
+
+                GL11.glScaled(1f / panelFactor, 1f / panelFactor, 1);
+                GL11.glTranslatef(-1 * (rect.x + 1), -1 * (rect.y + 1), 0);
+            } else {
+                GuiContainerManager.drawItem(rect.x + 1, rect.y + 1, stack, true, "");
+            }
+
+        }
+
+        public void drawBorder(Rectangle4i rect) {
+            float halfLineWidth = LINE_WIDTH / 2f;
+
+            if (this.borderLeft) {
+                NEIClientUtils
+                        .drawRect(rect.x - halfLineWidth, rect.y + halfLineWidth, LINE_WIDTH, rect.h, this.borderColor);
+            }
+
+            if (this.borderRight) {
+                NEIClientUtils.drawRect(
+                        rect.x + rect.w - halfLineWidth,
+                        rect.y - halfLineWidth,
+                        LINE_WIDTH,
+                        rect.h,
+                        this.borderColor);
+            }
+
+            if (this.borderTop) {
+                NEIClientUtils
+                        .drawRect(rect.x - halfLineWidth, rect.y - halfLineWidth, rect.w, LINE_WIDTH, this.borderColor);
+            }
+
+            if (this.borderBottom) {
+                NEIClientUtils.drawRect(
+                        rect.x + halfLineWidth,
+                        rect.y + rect.h - halfLineWidth,
+                        rect.w,
+                        LINE_WIDTH,
+                        this.borderColor);
+            }
+        }
+
+    }
+
+    public static class MouseContext {
+
+        public final int slotIndex;
+        public final int columnIndex;
+        public final int rowIndex;
+
+        public MouseContext(int slotIndex, int rowIndex, int columnIndex) {
+            this.slotIndex = slotIndex;
+            this.rowIndex = rowIndex;
+            this.columnIndex = columnIndex;
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(this.rowIndex, this.slotIndex, this.columnIndex);
+        }
+
+        public boolean equals(Object obj) {
+
+            if (obj instanceof MouseContext context) {
+                return this.columnIndex == context.columnIndex && this.rowIndex == context.rowIndex
+                        && this.slotIndex == context.slotIndex;
+            }
+
+            return false;
+        }
+
+    }
+
+    public static int SLOT_SIZE = 18;
+    public static final Color HIGHLIGHT_COLOR = new Color(0xee555555, true);
 
     protected int width;
     protected int height;
@@ -22,37 +270,39 @@ public class ItemsGrid
     protected int marginLeft;
     protected int marginTop;
 
+    protected int paddingLeft;
+
     protected ArrayList<ItemStack> realItems = new ArrayList<>();
 
     protected int page;
     protected int perPage;
 
-    protected int firstIndex;
-    protected int numPages;
-
     protected int rows;
     protected int columns;
 
-    protected boolean[] validSlotMap;
     protected boolean[] invalidSlotMap;
 
-    public ArrayList<ItemStack> getItems()
-    {
+    private final GridOverlapScanner overlapScanner = new GridOverlapScanner();
+
+    protected ScreenCapture screenCapture = null;
+
+    public ArrayList<ItemStack> getItems() {
         return realItems;
     }
 
-    public ItemStack getItem(int idx)
-    {
-        return realItems.get(idx);
+    public ItemStack getItem(int itemIndex) {
+        return realItems.get(itemIndex);
     }
 
-    public int size()
-    {
+    public int size() {
         return realItems.size();
     }
 
-    public int indexOf(ItemStack stackA, boolean useNBT)
-    {
+    public boolean isEmpty() {
+        return realItems.isEmpty();
+    }
+
+    public int indexOf(ItemStack stackA, boolean useNBT) {
 
         for (int idx = 0; idx < realItems.size(); idx++) {
             if (StackInfo.equalItemAndNBT(stackA, realItems.get(idx), useNBT)) {
@@ -63,59 +313,73 @@ public class ItemsGrid
         return -1;
     }
 
-    public int getPage()
-    {
+    public void setPage(int page) {
+        this.page = Math.max(0, Math.min(page, getNumPages() - 1));
+        onGridChanged();
+    }
+
+    public int getPage() {
         return page + 1;
     }
 
-    public int getPerPage()
-    {
+    public int getPerPage() {
         return perPage;
     }
 
-    public int getNumPages()
-    {
-        return numPages;
+    public int getNumPages() {
+        if (perPage > 0) {
+            return (int) Math.ceil((float) realItems.size() / (float) perPage);
+        }
+
+        return 0;
     }
 
-    public int getRows()
-    {
+    public int getRows() {
         return rows;
     }
-    
-    public int getColumns()
-    {
+
+    public int getColumns() {
         return columns;
     }
 
-    public void setGridSize(int mleft, int mtop, int w, int h)
-    {
-
-        //I don't like this big condition
-        if (marginLeft != mleft || marginTop != mtop || width != w || height != h) {
-
-            marginLeft = mleft;
-            marginTop = mtop;
-
-            width = Math.max(0, w);
-            height = Math.max(0, h);
-
-            columns = width / SLOT_SIZE;
-            rows = height / SLOT_SIZE;
-        }
+    public int getLastRowIndex() {
+        final List<T> mask = getMask();
 
+        return this.columns > 0 && !mask.isEmpty()
+                ? (int) Math.ceil((float) (mask.get(mask.size() - 1).slotIndex + 1) / this.columns) - 1
+                : 0;
     }
 
-    public void shiftPage(int shift)
-    {
+    public void setGridSize(int mleft, int mtop, int w, int h) {
+        final int newWidth = Math.max(0, w);
+        final int newHeight = Math.max(0, h);
+        final boolean changed = marginLeft != mleft || marginTop != mtop || width != newWidth || height != newHeight;
+
+        marginLeft = mleft;
+        marginTop = mtop;
+
+        width = newWidth;
+        height = newHeight;
+
+        this.columns = newWidth / SLOT_SIZE;
+        this.rows = newHeight / SLOT_SIZE;
+
+        paddingLeft = (width % SLOT_SIZE) / 2;
+
+        if (changed) {
+            this.overlapScanner.invalidate();
+            onGridChanged();
+        }
+    }
+
+    public void shiftPage(int shift) {
         if (perPage == 0) {
-            numPages = 0;
             page = 0;
             return;
         }
 
-        numPages = (int) Math.ceil((float) realItems.size() / (float) perPage);
-
+        final int numPages = getNumPages();
+        final int oldPage = page;
         page += shift;
 
         if (page >= numPages) {
@@ -127,145 +391,191 @@ public class ItemsGrid
         }
 
         page = Math.max(0, Math.min(page, numPages - 1));
+
+        if (page != oldPage) {
+            onGridChanged();
+        }
     }
 
-    public void refresh(GuiContainer gui)
-    {
-        updateGuiOverlapSlots(gui);
+    protected void onGridChanged() {
+        if (this.screenCapture != null) {
+            this.screenCapture.refreshBuffer();
+        }
+    }
+
+    public void onItemsChanged() {
+        onGridChanged();
+    }
+
+    public void refresh(GuiContainer gui) {
+        if (this.overlapScanner.shouldRefresh()) {
+            updateGuiOverlapSlots(gui);
+        }
         shiftPage(0);
     }
 
-    private void updateGuiOverlapSlots(GuiContainer gui)
-    {
-        invalidSlotMap = new boolean[rows * columns];
-        perPage = columns * rows;
+    protected void updateGuiOverlapSlots(GuiContainer gui) {
+        final boolean[] oldSlotMap = this.invalidSlotMap;
+        final int size = this.rows * this.columns;
+        final boolean[] slotMap = new boolean[size];
 
-        checkGuiOverlap(gui, 0, columns - 2, 1);
-        checkGuiOverlap(gui, columns - 1, 1, -1);
+        this.perPage = size;
 
-    }
-
-    private void checkGuiOverlap(GuiContainer gui, int start, int end, int dir)
-    {
-        boolean validColumn = false;
-
-        for (int c = start; c != end && !validColumn; c += dir) {
-            validColumn = true;
-
-            for (int r = 0; r < rows; r++) {
-                final int idx = columns * r + c;
-                if (!slotValid(gui, r, c) && idx >= 0 && idx < invalidSlotMap.length && !invalidSlotMap[idx]) {
-                    invalidSlotMap[idx] = true;
-                    validColumn = false;
-                    perPage--;
-                }
-
-            }
+        if (gui != null && size > 0) {
+            final INEIGuiHandler[] handlers = GuiInfo.getGuiHandlersSnapshot();
+            final Rectangle4i origin = getSlotRect(0, 0);
 
+            this.perPage -= this.overlapScanner.scan(
+                    rect -> GuiInfo.hideItemPanelSlot(gui, rect, handlers),
+                    origin.x,
+                    origin.y,
+                    SLOT_SIZE,
+                    this.rows,
+                    this.columns,
+                    origin.x + this.columns * SLOT_SIZE > gui.guiLeft,
+                    origin.x < gui.guiLeft + gui.xSize,
+                    slotMap);
         }
 
-    }
+        this.invalidSlotMap = slotMap;
 
-    private boolean slotValid(GuiContainer gui, int row, int column)
-    {
-        Rectangle4i rect = getSlotRect(row, column);
-        
-        try {
-            GuiInfo.readLock.lock();
-            if (GuiInfo.guiHandlers.stream().anyMatch(handler -> handler.hideItemPanelSlot(gui, rect.x, rect.y, rect.w, rect.h))) {
-                return false;
-            }
-        } finally {
-            GuiInfo.readLock.unlock();
+        if (!Arrays.equals(oldSlotMap, slotMap)) {
+            onGridChanged();
         }
-
-        return true;
     }
 
-    public Rectangle4i getSlotRect(int i)
-    {
-        return getSlotRect(i / columns, i % columns);
-    }
-
-    public Rectangle4i getSlotRect(int row, int column)
-    {
-        return new Rectangle4i(marginLeft + (width % SLOT_SIZE) / 2 + column * SLOT_SIZE, marginTop + row * SLOT_SIZE, SLOT_SIZE, SLOT_SIZE);
-    }
-
-    public boolean isInvalidSlot(int idx)
-    {
-        return invalidSlotMap[idx];
-    }
-
-    public void draw(int mousex, int mousey)
-    {
-        if (getPerPage() == 0) {
-            return;
-        }
-
-        ItemPanelSlot slot = getSlotMouseOver(mousex, mousey);
-
-        GuiContainerManager.enableMatrixStackLogging();
-
-        int idx = page * perPage;
-        for (int i = 0; i < rows * columns && idx < size(); i++) {
-
-            if (!invalidSlotMap[i]) {
-                drawItem(getSlotRect(i), idx, slot);
-                idx ++;
-            }
-
-        }
-
-        GuiContainerManager.disableMatrixStackLogging();
-    }
-
-    protected void drawItem(Rectangle4i rect, int idx, ItemPanelSlot focus)
-    {
-
-        if (focus != null && focus.slotIndex == idx) {
-            drawRect(rect.x, rect.y, rect.w, rect.h, 0xee555555);//highlight
-        }
-
-        GuiContainerManager.drawItem(rect.x + 1, rect.y + 1, getItem(idx));
-    }
-
-    public ItemPanelSlot getSlotMouseOver(int mousex, int mousey)
-    {
+    public T getSlotMouseOver(int mousex, int mousey) {
         if (!contains(mousex, mousey)) {
             return null;
         }
 
-        final int overRow = (int) ((mousey - marginTop) / SLOT_SIZE);
-        final int overColumn = (int) ((mousex - marginLeft - (width % SLOT_SIZE) / 2) / SLOT_SIZE);
+        final int overRow = getRowIndex(mousey);
+        final int overColumn = getColumnIndex(mousex);
         final int slt = columns * overRow + overColumn;
-        int idx = page * perPage + slt;
 
         if (overRow >= rows || overColumn >= columns) {
             return null;
         }
 
-        for (int i = 0; i < slt; i++) {
-            if (invalidSlotMap[i]) {
-                idx--;
-            }
-        }
-
-        return idx < size()? new ItemPanelSlot(idx, realItems.get(idx)): null;
+        return getSlotBySlotIndex(slt);
     }
 
-    public boolean contains(int px, int py)
-    {
+    public T getSlotBySlotIndex(int slotIndex) {
+        return getMask().stream().filter(item -> item.slotIndex == slotIndex).findAny().orElse(null);
+    }
 
-        if (!(new Rectangle4i(marginLeft, marginTop, width, height)).contains(px, py)) {
+    public T getSlotByItemIndex(int itemIndex) {
+        return getMask().stream().filter(item -> item.itemIndex == itemIndex).findAny().orElse(null);
+    }
+
+    public Rectangle4i getItemRect(int itemIndex) {
+        final T item = getSlotByItemIndex(itemIndex);
+        return item != null ? getSlotRect(item.slotIndex) : null;
+    }
+
+    public Rectangle4i getSlotRect(int slotIndex) {
+        return getSlotRect(slotIndex / columns, slotIndex % columns);
+    }
+
+    public Rectangle4i getSlotRect(int row, int column) {
+        return new Rectangle4i(
+                marginLeft + paddingLeft + column * SLOT_SIZE,
+                marginTop + row * SLOT_SIZE,
+                SLOT_SIZE,
+                SLOT_SIZE);
+    }
+
+    public int getRowIndex(int mousey) {
+        return (mousey - this.marginTop) / SLOT_SIZE;
+    }
+
+    public int getColumnIndex(int mousex) {
+        return (mousex - this.marginLeft - this.paddingLeft) / SLOT_SIZE;
+    }
+
+    public boolean isInvalidSlot(int index) {
+        return invalidSlotMap[index];
+    }
+
+    public abstract List<T> getMask();
+
+    protected abstract M getMouseContext(int mousex, int mousey);
+
+    protected void beforeDrawItems(int mousex, int mousey, M mouseContext) {
+        for (T item : getMask()) {
+            item.beforeDraw(getSlotRect(item.slotIndex), mouseContext);
+        }
+        for (T item : getMask()) {
+            item.drawBorder(getSlotRect(item.slotIndex));
+        }
+    }
+
+    protected void afterDrawItems(int mousex, int mousey, M mouseContext) {
+        for (T item : getMask()) {
+            item.afterDraw(getSlotRect(item.slotIndex), mouseContext);
+        }
+    }
+
+    public void update() {}
+
+    protected void drawItems() {
+
+        for (T item : getMask()) {
+            item.drawItem(getSlotRect(item.slotIndex));
+        }
+
+    }
+
+    protected int getGridRenderingCacheMode() {
+        return NEIClientConfig.getGridRenderingCacheMode();
+    }
+
+    public void draw(int mousex, int mousey) {
+        if (getPerPage() == 0) {
+            return;
+        }
+
+        final int gridRenderingCacheMode = getGridRenderingCacheMode();
+        final M mouseContext = getMouseContext(mousex, mousey);
+
+        beforeDrawItems(mousex, mousey, mouseContext);
+
+        if (gridRenderingCacheMode > 0) {
+
+            if (this.screenCapture == null) {
+                this.screenCapture = new ScreenCapture();
+            }
+
+            if (this.screenCapture.needRefresh(gridRenderingCacheMode)) {
+                this.screenCapture.captureScreen(() -> {
+                    GuiContainerManager.enableMatrixStackLogging();
+                    drawItems();
+                    GuiContainerManager.disableMatrixStackLogging();
+                }, gridRenderingCacheMode);
+            }
+
+            this.screenCapture.renderCapturedScreen();
+        } else {
+            GuiContainerManager.enableMatrixStackLogging();
+            drawItems();
+            GuiContainerManager.disableMatrixStackLogging();
+        }
+
+        afterDrawItems(mousex, mousey, mouseContext);
+    }
+
+    public boolean contains(int px, int py) {
+        final Rectangle4i rect = new Rectangle4i(
+                marginLeft + paddingLeft,
+                marginTop,
+                columns * SLOT_SIZE,
+                rows * SLOT_SIZE);
+
+        if (!rect.contains(px, py)) {
             return false;
         }
 
-        final int r = (int) ((py - marginTop) / SLOT_SIZE);
-        final int c = (int) ((px - marginLeft - (width % SLOT_SIZE) / 2) / SLOT_SIZE);
-        final int slt = columns * r + c;
-
-        return r >= rows || c >= columns || !invalidSlotMap[slt];
+        return !isInvalidSlot(columns * getRowIndex(py) + getColumnIndex(px));
     }
 
-}
+}

src/main/java/codechicken/nei/ItemsPanelGrid.java

@@ -0,0 +1,259 @@
+package codechicken.nei;
+
+import java.awt.Color;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.item.ItemStack;
+
+import codechicken.lib.gui.GuiDraw;
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.ItemsGrid.ItemsGridSlot;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.recipe.Recipe.RecipeId;
+
+public class ItemsPanelGrid extends ItemsGrid<ItemsPanelGrid.ItemsPanelGridSlot, ItemsPanelGrid.MouseContext> {
+
+    public static class ItemsPanelGridSlot extends ItemsGridSlot {
+
+        protected static final float LINE_WIDTH = 0.75f;
+
+        public int groupIndex = -1;
+        public String displayName = "";
+        public ItemStack bgItemStack;
+        public int groupSize = 1;
+        public boolean extended = false;
+
+        public Color bgColor = null;
+
+        public ItemsPanelGridSlot(int slotIndex, int itemIndex, ItemStack itemStack) {
+            super(slotIndex, itemIndex, itemStack);
+        }
+
+        public ItemStack getBGItem() {
+            return this.bgItemStack;
+        }
+
+        @Override
+        public RecipeId getRecipeId() {
+            return FavoriteRecipes.getFavorite(this.item);
+        }
+
+        @Override
+        public void beforeDraw(Rectangle4i rect, MouseContext mouseContext) {
+            super.beforeDraw(rect, mouseContext);
+
+            if (this.bgColor != null) {
+                NEIClientUtils.drawRect(rect.x, rect.y, rect.w, rect.h, this.bgColor);
+            }
+
+        }
+
+        @Override
+        public void drawItem(Rectangle4i rect) {
+
+            if (!this.extended && getBGItem() != null) {
+                GuiContainerManager.drawItems.zLevel -= 10F;
+                super.drawItem(getBGItem(), rect.offset(1, -1));
+                GuiContainerManager.drawItems.zLevel += 10F;
+                super.drawItem(getItemStack(), rect.offset(-2, 2));
+            } else {
+                super.drawItem(rect);
+            }
+        }
+
+    }
+
+    public ArrayList<ItemStack> newItems;
+    public ArrayList<ItemStack> rawItems = new ArrayList<>();
+    protected List<ItemsPanelGridSlot> gridMask;
+
+    protected final Map<Integer, Integer> itemToGroup = new HashMap<>();
+    protected final Map<Integer, List<ItemStack>> groupItems = new HashMap<>();
+    protected boolean forceExpand = false;
+
+    public void setItems(ArrayList<ItemStack> items) {
+        newItems = items;
+    }
+
+    public static void updateScale() {
+        SLOT_SIZE = 2 + (int) Math.ceil(8f * NEIClientConfig.getIntSetting("inventory.itempanelScale") / 100) * 2;
+    }
+
+    @Override
+    public void refresh(GuiContainer gui) {
+
+        if (this.newItems != null) {
+            if (this.rawItems.size() != this.newItems.size()) {
+                this.page = 0;
+            }
+
+            this.groupItems.clear();
+            this.itemToGroup.clear();
+            this.forceExpand = false;
+
+            if (!CollapsibleItems.isEmpty() && !this.newItems.isEmpty()) {
+                final Set<Integer> groups = new HashSet<>();
+                boolean outsideGroup = false;
+
+                this.realItems = new ArrayList<>();
+                this.rawItems = new ArrayList<>(this.newItems);
+
+                for (ItemStack stack : this.newItems) {
+                    final int groupIndex = CollapsibleItems.getGroupIndex(stack);
+
+                    if (groupIndex == -1) {
+                        this.realItems.add(stack);
+                        outsideGroup = true;
+                    } else {
+
+                        if (!groups.contains(groupIndex) || CollapsibleItems.isExpanded(groupIndex)) {
+                            this.itemToGroup.put(this.realItems.size(), groupIndex);
+                            this.realItems.add(stack);
+                            groups.add(groupIndex);
+                        }
+
+                        this.groupItems.computeIfAbsent(groupIndex, gi -> new ArrayList<>()).add(stack);
+                    }
+                }
+
+                // automatically opens if there are elements from only one group
+                if (!outsideGroup && groups.size() == 1) {
+                    final int groupIndex = groups.iterator().next();
+                    this.realItems = new ArrayList<>(this.newItems);
+                    this.itemToGroup.clear();
+                    this.forceExpand = true;
+
+                    for (int itemIndex = 0; itemIndex < this.realItems.size(); itemIndex++) {
+                        this.itemToGroup.put(itemIndex, groupIndex);
+                    }
+                }
+            } else {
+                this.realItems = new ArrayList<>(this.newItems);
+            }
+
+            this.newItems = null;
+            onItemsChanged();
+        }
+
+        super.refresh(gui);
+    }
+
+    @Override
+    protected void onGridChanged() {
+        this.gridMask = null;
+        super.onGridChanged();
+    }
+
+    @Override
+    public List<ItemsPanelGridSlot> getMask() {
+
+        if (this.gridMask == null) {
+            this.gridMask = new ArrayList<>();
+            int itemIndex = page * perPage;
+
+            for (int slotIndex = 0; slotIndex < rows * columns && itemIndex < size(); slotIndex++) {
+                if (!isInvalidSlot(slotIndex)) {
+                    this.gridMask.add(new ItemsPanelGridSlot(slotIndex, itemIndex, getItem(itemIndex)));
+                    itemIndex++;
+                }
+            }
+
+            calculateGroupBorders(this.gridMask);
+        }
+
+        return this.gridMask;
+    }
+
+    @Override
+    protected MouseContext getMouseContext(int mousex, int mousey) {
+        final ItemsPanelGridSlot hovered = getSlotMouseOver(mousex, mousey);
+
+        if (hovered != null) {
+            return new MouseContext(
+                    hovered.slotIndex,
+                    hovered.slotIndex / this.columns,
+                    hovered.slotIndex % this.columns);
+        }
+
+        return null;
+    }
+
+    protected void calculateGroupBorders(List<ItemsPanelGridSlot> gridMask) {
+
+        if (gridMask.isEmpty() || this.groupItems.isEmpty()) {
+            return;
+        }
+
+        final Color collapsedBGColor = new Color(
+                NEIClientConfig.getSetting("inventory.collapsibleItems.collapsedColor").getHexValue(),
+                true);
+        final Color expandedBGColor = new Color(
+                NEIClientConfig.getSetting("inventory.collapsibleItems.expandedColor").getHexValue(),
+                true);
+        final Color collapsedBorderColor = darkerColor(collapsedBGColor);
+        final Color expandedBorderColor = darkerColor(expandedBGColor);
+        final Map<Integer, Integer> borderGrid = new HashMap<>();
+
+        for (ItemsPanelGridSlot item : gridMask) {
+            borderGrid.put(item.slotIndex, this.itemToGroup.getOrDefault(item.itemIndex, -1));
+        }
+
+        for (ItemsPanelGridSlot item : gridMask) {
+            final int groupIndex = borderGrid.get(item.slotIndex);
+            final List<ItemStack> groupItems = this.groupItems.get(groupIndex);
+
+            if (groupItems == null || groupItems.size() == 1) {
+                continue;
+            }
+
+            int column = item.slotIndex % this.columns;
+            int row = item.slotIndex / this.columns;
+            int prevSlotIndex = (row - 1) * this.columns + column;
+            int nextSlotIndex = (row + 1) * this.columns + column;
+
+            item.groupIndex = groupIndex;
+            item.groupSize = groupItems.size();
+            item.bgItemStack = groupItems.get(groupItems.size() - 1);
+            item.displayName = CollapsibleItems.getDisplayName(groupIndex);
+            item.extended = this.forceExpand || CollapsibleItems.isExpanded(groupIndex);
+            item.bgColor = item.extended ? expandedBGColor : collapsedBGColor;
+
+            item.borderColor = item.extended ? expandedBorderColor : collapsedBorderColor;
+            item.borderLeft = column == 0 || borderGrid.getOrDefault(item.slotIndex - 1, -1) != groupIndex;
+            item.borderRight = column + 1 == this.columns
+                    || borderGrid.getOrDefault(item.slotIndex + 1, -1) != groupIndex;
+            item.borderTop = borderGrid.getOrDefault(prevSlotIndex, -1) != groupIndex;
+            item.borderBottom = borderGrid.getOrDefault(nextSlotIndex, -1) != groupIndex;
+        }
+
+    }
+
+    private static Color darkerColor(Color color) {
+        return new Color(
+                color.getRed(),
+                color.getGreen(),
+                color.getBlue(),
+                Math.min((int) (color.getAlpha() + (255f / 5) * 2), 255));
+    }
+
+    public void draw(int mousex, int mousey) {
+        if (ItemList.loadFinished) {
+            super.draw(mousex, mousey);
+        } else {
+            GuiDraw.drawStringC(
+                    NEIClientUtils
+                            .cropText(GuiDraw.fontRenderer, NEIClientUtils.translate("itempanel.loading"), width - 10),
+                    marginLeft + width / 2,
+                    marginTop + height / 2,
+                    0xffffff,
+                    true);
+        }
+    }
+
+}

src/main/java/codechicken/nei/ItemsTooltipLineHandler.java

@@ -0,0 +1,410 @@
+package codechicken.nei;
+
+import static codechicken.lib.gui.GuiDraw.fontRenderer;
+
+import java.awt.Dimension;
+import java.util.ArrayList;
+import java.util.IdentityHashMap;
+import java.util.List;
+import java.util.Map;
+
+import net.minecraft.client.renderer.RenderHelper;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.EnumChatFormatting;
+
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL12;
+
+import codechicken.lib.gui.GuiDraw;
+import codechicken.lib.gui.GuiDraw.ITooltipLineHandler;
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.NEIClientUtils.Alignment;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.ReadableNumberConverter;
+
+public class ItemsTooltipLineHandler implements ITooltipLineHandler {
+
+    @FunctionalInterface
+    public interface AmountRenderer {
+
+        void draw(int x, int y, ItemStack stack, long amount);
+    }
+
+    public static class NoAmountRenderer implements AmountRenderer {
+
+        @Override
+        public void draw(int x, int y, ItemStack stack, long amount) {
+            GuiContainerManager.drawItem(x, y, stack, true, "");
+        }
+
+        protected static void drawAmountText(String text, Rectangle4i rect, int color, Alignment alignment) {
+            NEIClientUtils.drawNEIOverlayText(text, rect, 1, color, true, alignment);
+        }
+    }
+
+    public static class TotalAmountRenderer extends NoAmountRenderer {
+
+        private static class AmountText {
+
+            public final String text;
+            public final Alignment alignment;
+
+            public AmountText(String text, Alignment alignment) {
+                this.text = text;
+                this.alignment = alignment;
+            }
+        }
+
+        private final Map<ItemStack, AmountText> cache = new IdentityHashMap<>();
+
+        @Override
+        public void draw(int x, int y, ItemStack stack, long amount) {
+            super.draw(x, y, stack, amount);
+            drawAmount(new Rectangle4i(x, y, SLOT_SIZE - 2, SLOT_SIZE - 2), stack, amount);
+        }
+
+        protected void drawAmount(Rectangle4i rect, ItemStack stack, long amount) {
+            final AmountText amountText = this.cache.computeIfAbsent(stack, key -> {
+                final boolean isFluidDisplay = StackInfo.isFluidDisplayItem(key);
+                final String text = formatAmount(key, amount);
+
+                return new AmountText(
+                        isFluidDisplay && !text.isEmpty() ? text + "L" : text,
+                        isFluidDisplay ? Alignment.BottomLeft : Alignment.BottomRight);
+            });
+
+            if (!amountText.text.isEmpty()) {
+                drawAmountText(amountText.text, rect, 0xFFFFFF, amountText.alignment);
+            }
+        }
+
+        protected String formatAmount(ItemStack stack, long amount) {
+            return amount == 0 ? "" : ReadableNumberConverter.INSTANCE.toWideReadableForm(amount);
+        }
+    }
+
+    public static class StacksAmountRenderer extends NoAmountRenderer {
+
+        private static class StacksText {
+
+            public final String stacks;
+            public final String remainder;
+            public final int color;
+
+            public StacksText(String stacks, String remainder, int color) {
+                this.stacks = stacks;
+                this.remainder = remainder;
+                this.color = color;
+            }
+        }
+
+        private final Map<ItemStack, StacksText> cache = new IdentityHashMap<>();
+
+        @Override
+        public void draw(int x, int y, ItemStack stack, long amount) {
+            super.draw(x, y, stack, amount);
+            drawAmount(new Rectangle4i(x, y, SLOT_SIZE - 2, SLOT_SIZE - 2), stack, amount);
+        }
+
+        protected void drawAmount(Rectangle4i rect, ItemStack stack, long amount) {
+            final StacksText stacksText = this.cache.computeIfAbsent(stack, key -> formatAmount(key, amount));
+
+            if (!stacksText.stacks.isEmpty()) {
+                drawAmountText(stacksText.stacks, rect, stacksText.color, Alignment.TopLeft);
+            }
+
+            if (!stacksText.remainder.isEmpty()) {
+                drawAmountText(stacksText.remainder, rect, stacksText.color, Alignment.BottomRight);
+            }
+        }
+
+        private StacksText formatAmount(ItemStack stack, long amount) {
+            final long stackSize = StackInfo.isFluidDisplayItem(stack) ? FLUID_STACK_SIZE
+                    : Math.max(1, stack.getMaxStackSize());
+            final long stacks = amount / stackSize;
+            final long remainder = amount % stackSize;
+            final String prefix = getPrefix(stack);
+
+            return new StacksText(
+                    stacks > 0 ? prefix + "x" + ReadableNumberConverter.INSTANCE.toWideReadableForm(stacks) : "",
+                    remainder > 0
+                            ? (stacks > 0 ? "+" : prefix)
+                                    + ReadableNumberConverter.INSTANCE.toWideReadableForm(remainder)
+                            : "",
+                    getColor(stack));
+        }
+
+        protected String getPrefix(ItemStack stack) {
+            return "";
+        }
+
+        protected int getColor(ItemStack stack) {
+            return 0xFFFFFF;
+        }
+    }
+
+    protected static final int SLOT_SIZE = 18;
+    protected static final int ICON_SIZE = 16;
+    protected static final int ICON_OFFSET = 1;
+    protected static final int MAX_COLUMNS = 11;
+    protected static final int MARGIN_TOP = 2;
+    protected static final int LABEL_MARGIN = 15;
+    protected static final int NAME_MARGIN = 2;
+    protected static final int DEFAULT_MAX_ROWS = 5;
+    protected static final int FLUID_STACK_SIZE = 144;
+
+    protected final List<ItemStack> items;
+    protected final List<Long> amounts = new ArrayList<>();
+    protected final List<String> names = new ArrayList<>();
+
+    protected AmountRenderer amountRenderer;
+
+    protected String label;
+    protected EnumChatFormatting labelColor = EnumChatFormatting.GRAY;
+
+    protected int activeStackIndex = -1;
+    protected Dimension size = new Dimension();
+
+    protected int maxNamedRows = Integer.MAX_VALUE;
+
+    protected int length = 0;
+    protected int rows = 0;
+    protected int nameRows = 0;
+    protected int gridColumns = 0;
+    protected int gridCount = 0;
+
+    public static ItemsTooltipLineHandler of(String label, List<ItemStack> items, int maxRows, int maxNamedRows) {
+        return new ItemsTooltipLineHandler(label, items, true, maxRows, maxNamedRows);
+    }
+
+    public ItemsTooltipLineHandler(String label, List<ItemStack> items) {
+        this(label, items, true, DEFAULT_MAX_ROWS, 0);
+    }
+
+    public ItemsTooltipLineHandler(String label, List<ItemStack> items, boolean saveStackSize, int maxRows) {
+        this(label, items, saveStackSize, maxRows, 0);
+    }
+
+    protected ItemsTooltipLineHandler(String label, List<ItemStack> items, boolean saveStackSize, int maxRows,
+            int maxNamedRows) {
+        this.label = label;
+        this.items = groupingItemStacks(items);
+        this.amountRenderer = saveStackSize ? new TotalAmountRenderer() : new NoAmountRenderer();
+        this.length = this.items.size();
+        this.maxNamedRows = maxNamedRows;
+
+        setMaxRows(maxRows);
+    }
+
+    protected static int headerHeight() {
+        return fontRenderer.FONT_HEIGHT + 2 + MARGIN_TOP;
+    }
+
+    public ItemsTooltipLineHandler setMaxRows(int maxRows) {
+        if (this.length == 0) {
+            return this;
+        }
+
+        this.names.clear();
+        this.nameRows = 0;
+
+        if (!layoutWithNames(maxRows)) {
+            layoutAsGrid(maxRows);
+        }
+
+        this.size.height = this.rows * SLOT_SIZE + headerHeight();
+
+        return this;
+    }
+
+    public int getRows() {
+        return this.rows;
+    }
+
+    protected boolean layoutWithNames(int maxRows) {
+        final int maxNames = Math.min(this.maxNamedRows, this.length <= maxRows ? this.length : maxRows - 1);
+        final int[] lineWidth = new int[maxNames + 1];
+        lineWidth[0] = labelWidth();
+
+        for (int index = 0; index < maxNames; index++) {
+            final String name = this.items.get(index).getDisplayName();
+            this.names.add(name);
+            lineWidth[index + 1] = Math
+                    .max(lineWidth[index], SLOT_SIZE + NAME_MARGIN + fontRenderer.getStringWidth(name));
+        }
+
+        for (int named = maxNames; named >= 0; named--) {
+            final int rest = this.length - named;
+            final int width = Math.max(lineWidth[named], Math.min(rest, MAX_COLUMNS) * SLOT_SIZE);
+            final int columns = Math.max(1, width / SLOT_SIZE);
+            final int restRows = (int) Math.ceil((float) rest / columns);
+
+            if (named + restRows <= maxRows) {
+                this.nameRows = named;
+                this.gridColumns = columns;
+                this.gridCount = rest;
+                this.rows = named + restRows;
+                this.size.width = width;
+                return true;
+            }
+        }
+
+        this.names.clear();
+        return false;
+    }
+
+    protected void layoutAsGrid(int maxRows) {
+        this.gridColumns = Math.min(MAX_COLUMNS, this.length);
+        this.rows = Math.min(maxRows, (int) Math.ceil((float) this.length / this.gridColumns));
+        this.gridCount = Math.min(this.length, this.gridColumns * this.rows);
+        this.size.width = Math.max(this.gridColumns * SLOT_SIZE, labelWidth());
+
+        if (this.gridCount < this.length) {
+            this.gridCount -= reservedColumns(this.length - this.gridCount);
+        }
+    }
+
+    protected int labelWidth() {
+        return fontRenderer.getStringWidth(this.label) + LABEL_MARGIN;
+    }
+
+    protected int reservedColumns(int hidden) {
+        return (int) Math.ceil((float) (fontRenderer.getStringWidth("+" + hidden) - 2) / SLOT_SIZE);
+    }
+
+    public ItemsTooltipLineHandler setAmountRenderer(AmountRenderer amountRenderer) {
+        this.amountRenderer = amountRenderer;
+        return this;
+    }
+
+    public void setActiveStack(ItemStack activeStack) {
+        final ItemStack realStack = items.stream().filter(stack -> NEIClientUtils.areStacksSameType(stack, activeStack))
+                .findFirst().orElse(null);
+        this.activeStackIndex = items.indexOf(realStack);
+    }
+
+    public ItemStack getActiveStack() {
+        return this.activeStackIndex == -1 ? null : this.items.get(this.activeStackIndex);
+    }
+
+    public List<ItemStack> getItems() {
+        return this.items;
+    }
+
+    public boolean isEmpty() {
+        return this.items.isEmpty();
+    }
+
+    @Override
+    public Dimension getSize() {
+        return this.size;
+    }
+
+    public void setLabelColor(EnumChatFormatting color) {
+        this.labelColor = color;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+        this.size.width = Math.max(this.size.width, labelWidth());
+    }
+
+    @Override
+    public void draw(int x, int y) {
+        if (this.length == 0) return;
+
+        y += MARGIN_TOP;
+
+        fontRenderer.drawStringWithShadow(this.labelColor + this.label + ":", x, y, 0);
+
+        GL11.glEnable(GL12.GL_RESCALE_NORMAL);
+
+        GL11.glPushAttrib(GL11.GL_ENABLE_BIT | GL11.GL_COLOR_BUFFER_BIT | GL11.GL_LIGHTING_BIT);
+        RenderHelper.enableGUIStandardItemLighting();
+
+        final int xTranslation = x;
+        final int yTranslation = y + fontRenderer.FONT_HEIGHT + 2;
+        final int zTranslation = GuiContainerManager.TOOLTIP_Z_OFFSET;
+        GL11.glTranslatef(xTranslation, yTranslation, zTranslation);
+
+        final int gridShift = gridIndexShift();
+
+        for (int index = 0; index < this.nameRows; index++) {
+            drawSlot(0, index * SLOT_SIZE, index);
+        }
+
+        for (int index = 0; index < this.gridCount; index++) {
+            drawSlot(
+                    (index % this.gridColumns) * SLOT_SIZE,
+                    (this.nameRows + index / this.gridColumns) * SLOT_SIZE,
+                    this.nameRows + gridShift + index);
+        }
+
+        NEIClientUtils.gl2DRenderContext(() -> {
+            final int textShift = ICON_OFFSET + Math.round((ICON_SIZE - fontRenderer.FONT_HEIGHT) / 2f);
+
+            for (int index = 0; index < this.nameRows; index++) {
+                fontRenderer.drawStringWithShadow(
+                        EnumChatFormatting.GRAY + this.names.get(index),
+                        SLOT_SIZE + NAME_MARGIN,
+                        index * SLOT_SIZE + textShift,
+                        0xFFFFFF);
+            }
+
+            final int hidden = this.length - this.nameRows - this.gridCount;
+
+            if (hidden > 0) {
+                final String text = "+" + hidden;
+                fontRenderer.drawStringWithShadow(
+                        EnumChatFormatting.GRAY + text,
+                        this.size.width - fontRenderer.getStringWidth(text) - 2,
+                        (this.rows - 1) * SLOT_SIZE + textShift,
+                        0xFFFFFF);
+            }
+        });
+
+        GL11.glTranslatef(-xTranslation, -yTranslation, -zTranslation);
+        GL11.glPopAttrib();
+    }
+
+    protected int gridIndexShift() {
+        if (this.nameRows > 0 || this.activeStackIndex == -1) {
+            return 0;
+        }
+
+        return Math.max(0, Math.min(this.length - this.gridCount, this.activeStackIndex - this.gridCount + 2));
+    }
+
+    protected void drawSlot(int x, int y, int index) {
+        if (this.activeStackIndex == index) {
+            NEIClientUtils.gl2DRenderContext(() -> GuiDraw.drawRect(x, y, SLOT_SIZE, SLOT_SIZE, 0x66555555));
+        }
+
+        drawStackWithAmount(x, y, index);
+    }
+
+    protected void drawStackWithAmount(int x, int y, int index) {
+        this.amountRenderer.draw(x + ICON_OFFSET, y + ICON_OFFSET, this.items.get(index), this.amounts.get(index));
+    }
+
+    private List<ItemStack> groupingItemStacks(List<ItemStack> items) {
+        final List<ItemStack> result = new ArrayList<>();
+
+        for (Map.Entry<NBTTagCompound, Long> entry : ItemStackAmount.of(items).entrySet()) {
+            result.add(StackInfo.loadFromNBT(entry.getKey(), 0));
+            this.amounts.add(Math.max(0, entry.getValue()));
+        }
+
+        if (result.isEmpty()) {
+            for (ItemStack stack : items) {
+                result.add(stack);
+                this.amounts.add(0L);
+            }
+        }
+
+        return result;
+    }
+
+}

src/main/java/codechicken/nei/KeyManager.java

@@ -1,52 +1,200 @@
 package codechicken.nei;
 
-import org.lwjgl.input.Keyboard;
-
 import java.util.HashMap;
 import java.util.LinkedList;
-import java.util.Map.Entry;
+import java.util.Map;
+import java.util.StringJoiner;
+import java.util.function.BooleanSupplier;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.settings.KeyBinding;
+
+import org.lwjgl.input.Keyboard;
+import org.lwjgl.input.Mouse;
+
+import codechicken.nei.util.NEIKeyboardUtils;
+import codechicken.nei.util.NEIMouseUtils;
+import cpw.mods.fml.client.registry.ClientRegistry;
 
 /**
- * Good old down/held/up keystate tracker
+ * Registers NEI key bindings as vanilla {@link KeyBinding}s and exposes their state to the rest of NEI.
  */
-public class KeyManager
-{
-    public static interface IKeyStateTracker
-    {
+public class KeyManager {
+
+    public static interface IKeyStateTracker {
+
         public void tickKeyStates();
     }
-    
-    public static class KeyState
-    {
-        public boolean down;
-        public boolean held;
-        public boolean up;
-    }
-    
-    public static HashMap<String, KeyState> keyStates = new HashMap<>();
+
     public static LinkedList<IKeyStateTracker> trackers = new LinkedList<>();
-    
-    public static void tickKeyStates()
-    {
-        for(Entry<String, KeyState> entry : keyStates.entrySet())
-        {
-            int keyCode = NEIClientConfig.getKeyBinding(entry.getKey());
-            boolean down = keyCode != 0 && Keyboard.isKeyDown(keyCode);
-            KeyState state = entry.getValue();
-            if(down)
-            {
-                state.down = !state.held;
-                state.up = false;
+    private static final Map<String, KeyBinding> keyBindings = new HashMap<>();
+    private static final Map<String, String> keyAliases = new HashMap<>();
+    private static volatile boolean pendingOptionsReload = false;
+    private static int clickedButton = -1;
+
+    static {
+        // Aliases for legacy keybinds
+        keyAliases.put("gui.recipe", "recipe.recipe");
+        keyAliases.put("gui.usage", "recipe.usage");
+        keyAliases.put("gui.hide_bookmarks", "bookmark.hide");
+    }
+
+    public static KeyBinding registerKeyBinding(String ident, int defaultKey) {
+        return keyBindings.computeIfAbsent(ident, id -> {
+            final KeyBinding binding = new KeyBinding(
+                    "nei.options.keys." + id,
+                    NEIKeyboardUtils.unhash(defaultKey),
+                    categoryFor(id));
+            ClientRegistry.registerKeyBinding(binding);
+            return binding;
+        });
+    }
+
+    public static KeyBinding getKeyBinding(String ident) {
+        return keyBindings.get(keyAliases.getOrDefault(ident, ident));
+    }
+
+    public static boolean isRegistered(String description) {
+        for (KeyBinding binding : keyBindings.values()) {
+            if (binding.getKeyDescription().equals(description)) {
+                return true;
             }
-            else
-            {
-                state.up = state.held;
-                state.down = false;
-            }
-            state.held = down;
         }
-        
-        for(IKeyStateTracker tracker : trackers)
-            tracker.tickKeyStates();
+        return false;
+    }
+
+    public static int getKeyCode(String ident) {
+        final KeyBinding binding = getKeyBinding(ident);
+        return binding == null ? Keyboard.KEY_NONE : binding.getKeyCode();
+    }
+
+    public static boolean isKeyDown(String ident) {
+        final KeyBinding binding = getKeyBinding(ident);
+
+        if (binding != null) {
+            final int keyCode = binding.getKeyCode();
+
+            if (keyCode < 0) {
+                final int button = keyCode + 100;
+                return Mouse.isButtonDown(button) || button == clickedButton;
+            } else if (keyCode > Keyboard.KEY_NONE && keyCode < Keyboard.KEYBOARD_SIZE) {
+                return Keyboard.isKeyDown(keyCode);
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Whether any NEI key binding is assigned to the given mouse button.
+     */
+    public static boolean isMouseBound(int button) {
+        for (KeyBinding binding : keyBindings.values()) {
+            if (binding.getKeyCode() == button - 100) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Runs a hotkey handler for a click of the given mouse button if the button is bound to any NEI key binding. The
+     * button is reported as down by {@link #isKeyDown} for the duration of the call, because the LWJGL button state can
+     * already be released when a quick click is processed.
+     *
+     * @return true if the click was consumed by the handler
+     */
+    public static boolean handleMouseHotkey(int button, BooleanSupplier handler) {
+        if (!isMouseBound(button)) {
+            return false;
+        }
+
+        final int previous = clickedButton;
+        clickedButton = button;
+
+        try {
+            return handler.getAsBoolean();
+        } finally {
+            clickedButton = previous;
+        }
+    }
+
+    public static boolean isHashDown(String ident) {
+        return isHashDown(ident, 0);
+    }
+
+    public static boolean isHashDown(String ident, int modifierMask) {
+
+        if (!isKeyDown(ident)) {
+            return false;
+        }
+
+        if (NEIKeyboardUtils.isHashKey(getKeyCode(ident))) {
+            return true;
+        }
+
+        return ((modifierMask & NEIKeyboardUtils.CTRL_HASH) != 0) == NEIClientUtils.controlKey()
+                && ((modifierMask & NEIKeyboardUtils.SHIFT_HASH) != 0) == NEIClientUtils.shiftKey()
+                && ((modifierMask & NEIKeyboardUtils.ALT_HASH) != 0) == NEIClientUtils.altKey();
+    }
+
+    public static String getKeyName(String ident) {
+        return getKeyName(ident, 0);
+    }
+
+    public static String getKeyName(String ident, int meta) {
+        final int keyCode = getKeyCode(ident);
+        return keyCode == Keyboard.KEY_NONE ? null : NEIKeyboardUtils.getKeyName(keyCode, meta);
+    }
+
+    public static String getKeyName(String ident, int meta, int mouseBind) {
+        final int keyCode = getKeyCode(ident);
+        return keyCode == Keyboard.KEY_NONE && mouseBind == NEIMouseUtils.MOUSE_BTN_NONE ? null
+                : getKeyName(keyCode, meta, mouseBind);
+    }
+
+    public static String getKeyName(int keyBind, int mouseBind) {
+        final int keyCode = NEIKeyboardUtils.unhash(keyBind);
+        return getKeyName(keyCode, keyBind - keyCode, mouseBind);
+    }
+
+    private static String getKeyName(int keyCode, int hash, int mouseBind) {
+        StringJoiner keyText = new StringJoiner(" + ");
+        String keyHash = keyCode == Keyboard.KEY_NONE && hash == 0 ? "" : NEIKeyboardUtils.getKeyName(keyCode, hash);
+        String mouseHash = mouseBind == NEIMouseUtils.MOUSE_BTN_NONE ? "" : NEIMouseUtils.getKeyName(mouseBind);
+
+        if (!keyHash.isEmpty()) {
+            keyText.add(keyHash);
+        }
+
+        if (!mouseHash.isEmpty()) {
+            keyText.add(mouseHash);
+        }
+
+        return keyText.toString();
+    }
+
+    public static boolean isPressed(String ident) {
+        final KeyBinding binding = getKeyBinding(ident);
+        return binding != null && binding.isPressed();
+    }
+
+    private static String categoryFor(String ident) {
+        final int dot = ident.indexOf('.');
+        return dot < 0 ? "nei.options.keys" : "nei.options.keys." + ident.substring(0, dot);
+    }
+
+    public static void requestOptionsReload() {
+        pendingOptionsReload = true;
+    }
+
+    public static void tickKeyStates() {
+
+        if (pendingOptionsReload) {
+            pendingOptionsReload = false;
+            Minecraft.getMinecraft().gameSettings.loadOptions();
+        }
+
+        for (IKeyStateTracker tracker : trackers) tracker.tickKeyStates();
     }
 }

src/main/java/codechicken/nei/LRUCache.java

@@ -0,0 +1,21 @@
+package codechicken.nei;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+// Simple LRUCache
+public class LRUCache<K, V> extends LinkedHashMap<K, V> {
+
+    private final int capacity;
+
+    public LRUCache(int capacity) {
+        super(capacity, 0.75f, true);
+        this.capacity = capacity;
+    }
+
+    @Override
+    protected boolean removeEldestEntry(Map.Entry<K, V> eldest) {
+        return size() > capacity;
+    }
+
+}

src/main/java/codechicken/nei/Label.java

@@ -3,30 +3,25 @@ package codechicken.nei;
 import static codechicken.lib.gui.GuiDraw.drawString;
 import static codechicken.lib.gui.GuiDraw.drawStringC;
 
-public class Label extends Widget
-{
+public class Label extends Widget {
+
     final boolean centered;
     final int colour;
     public String text;
-    
-    public Label(String s, boolean center, int color)
-    {
+
+    public Label(String s, boolean center, int color) {
         text = s;
         centered = center;
         colour = color;
     }
-    
-    public Label(String s, boolean center)
-    {
+
+    public Label(String s, boolean center) {
         this(s, center, 0xFFFFFFFF);
     }
-    
+
     @Override
-    public void draw(int mousex, int mousey)
-    {
-        if(centered)
-            drawStringC(text, x, y, colour);
-        else
-            drawString(text, x, y, colour);
+    public void draw(int mousex, int mousey) {
+        if (centered) drawStringC(text, x, y, colour);
+        else drawString(text, x, y, colour);
     }
 }

src/main/java/codechicken/nei/LayoutStyleMinecraft.java

@@ -1,34 +1,19 @@
 package codechicken.nei;
 
-import codechicken.nei.api.LayoutStyle;
-import codechicken.nei.drawable.DrawableBuilder;
+import static codechicken.lib.gui.GuiDraw.drawStringC;
+
 import net.minecraft.client.gui.inventory.GuiContainer;
+
 import org.lwjgl.opengl.GL11;
 
-import static codechicken.lib.gui.GuiDraw.drawStringC;
-import static codechicken.nei.LayoutManager.bookmarkPanel;
-import static codechicken.nei.LayoutManager.bookmarksButton;
-import static codechicken.nei.LayoutManager.delete;
-import static codechicken.nei.LayoutManager.dropDown;
-import static codechicken.nei.LayoutManager.gamemode;
-import static codechicken.nei.LayoutManager.heal;
-import static codechicken.nei.LayoutManager.itemPanel;
-import static codechicken.nei.LayoutManager.itemPresenceOverlays;
-import static codechicken.nei.LayoutManager.less;
-import static codechicken.nei.LayoutManager.magnet;
-import static codechicken.nei.LayoutManager.more;
-import static codechicken.nei.LayoutManager.options;
-import static codechicken.nei.LayoutManager.quantity;
-import static codechicken.nei.LayoutManager.rain;
-import static codechicken.nei.LayoutManager.searchField;
-import static codechicken.nei.LayoutManager.timeButtons;
-import static codechicken.nei.NEIClientConfig.canPerformAction;
-import static codechicken.nei.NEIClientConfig.disabledActions;
-import static codechicken.nei.NEIClientConfig.getMagnetMode;
-import static codechicken.nei.NEIClientConfig.isEnabled;
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.api.LayoutStyle;
+
+public class LayoutStyleMinecraft extends LayoutStyle {
+
+    protected static final int BUTTON_SIZE = 20;
+    protected static final int MARGIN = 2;
 
-public class LayoutStyleMinecraft extends LayoutStyle
-{
     public int buttonCount;
     public int leftSize;
     public int numButtons;
@@ -40,19 +25,18 @@ public class LayoutStyleMinecraft extends LayoutStyle
 
     @Override
     public void init() {
-        delete.icon = new Image(144, 12, 12, 12);
-        rain.icon = new Image(120, 12, 12, 12);
-        gamemode.icons[0] = new Image(132, 12, 12, 12);
-        gamemode.icons[1] = new Image(156, 12, 12, 12);
-        gamemode.icons[2] = new Image(168, 12, 12, 12);
-        magnet.icon = new Image(180, 24, 12, 12);
-        timeButtons[0].icon = new Image(132, 24, 12, 12);
-        timeButtons[1].icon = new Image(120, 24, 12, 12);
-        timeButtons[2].icon = new Image(144, 24, 12, 12);
-        timeButtons[3].icon = new Image(156, 24, 12, 12);
-        heal.icon = new Image(168, 24, 12, 12);
-        itemPresenceOverlays[0] = new DrawableBuilder("nei:textures/nei_tabbed_sprites.png", 0, 40, 8, 8).build();
-        itemPresenceOverlays[1] = new DrawableBuilder("nei:textures/nei_tabbed_sprites.png", 8, 40, 8, 8).build();
+        LayoutManager.delete.icon = new Image(144, 12, 12, 12);
+        LayoutManager.rain.icon = new Image(120, 12, 12, 12);
+        LayoutManager.gamemode.icons[0] = new Image(132, 12, 12, 12);
+        LayoutManager.gamemode.icons[1] = new Image(156, 12, 12, 12);
+        LayoutManager.gamemode.icons[2] = new Image(168, 12, 12, 12);
+        LayoutManager.magnet.icons[0] = new Image(180, 24, 12, 12);
+        LayoutManager.magnet.icons[1] = new Image(180, 36, 12, 12);
+        LayoutManager.timeButtons[0].icon = new Image(132, 24, 12, 12);
+        LayoutManager.timeButtons[1].icon = new Image(120, 24, 12, 12);
+        LayoutManager.timeButtons[2].icon = new Image(144, 24, 12, 12);
+        LayoutManager.timeButtons[3].icon = new Image(156, 24, 12, 12);
+        LayoutManager.heal.icon = new Image(168, 24, 12, 12);
     }
 
     @Override
@@ -64,103 +48,179 @@ public class LayoutStyleMinecraft extends LayoutStyle
     public void layout(GuiContainer gui, VisiblityData visiblity) {
         reset();
 
-        leftSize = ItemPanels.bookmarkPanel.getWidth(gui);
-        numButtons = Math.max(leftSize / 18, 1);
+        leftSize = (gui.width - gui.xSize) / 2 - 4;
+        numButtons = Math.max(leftSize / 20, 1);
 
-        delete.state = 0x4;
-        if (NEIController.getDeleteMode())
-            delete.state |= 1;
-        else if (!visiblity.enableDeleteMode)
-            delete.state |= 2;
-
-        rain.state = 0x4;
-        if (disabledActions.contains("rain"))
-            rain.state |= 2;
-        else if (NEIClientUtils.isRaining())
-            rain.state |= 1;
-
-        gamemode.state = 0x4;
-        if (NEIClientUtils.getGamemode() != 0) {
-            gamemode.state |= 0x1;
-            gamemode.index = NEIClientUtils.getGamemode() - 1;
-        } else {
-            if (NEIClientUtils.isValidGamemode("creative"))
-                gamemode.index = 0;
-            else if (NEIClientUtils.isValidGamemode("creative+"))
-                gamemode.index = 1;
-            else if (NEIClientUtils.isValidGamemode("adventure"))
-                gamemode.index = 2;
+        LayoutManager.delete.state = 0x4;
+        if (NEIController.getDeleteMode()) {
+            LayoutManager.delete.state |= 1;
+        } else if (!visiblity.enableDeleteMode) {
+            LayoutManager.delete.state |= 2;
         }
-        bookmarksButton.index = NEIClientConfig.isBookmarkPanelHidden() ? 0 : 1;
-        options.index = NEIClientConfig.getCheatMode();
 
-        magnet.state = 0x4 | (getMagnetMode() ? 1 : 0);
+        LayoutManager.rain.state = 0x4;
+        if (NEIClientConfig.disabledActions.contains("rain")) {
+            LayoutManager.rain.state |= 2;
+        } else if (NEIClientUtils.isRaining()) {
+            LayoutManager.rain.state |= 1;
+        }
 
-        if (canPerformAction("delete"))
-            layoutButton(delete);
-        if (canPerformAction("rain"))
-            layoutButton(rain);
-        if (NEIClientUtils.isValidGamemode("creative") ||
-            NEIClientUtils.isValidGamemode("creative+") ||
-            NEIClientUtils.isValidGamemode("adventure"))
-            layoutButton(gamemode);
-        if (canPerformAction("magnet"))
-            layoutButton(magnet);
-        if (canPerformAction("time")) {
-            for (int i = 0; i < 4; i++) {
-                timeButtons[i].state = disabledActions.contains(NEIActions.timeZones[i]) ? 2 : 0;
-                layoutButton(timeButtons[i]);
+        LayoutManager.gamemode.state = 0x4;
+        if (NEIClientUtils.getGamemode() != 0) {
+            LayoutManager.gamemode.state |= 0x1;
+            LayoutManager.gamemode.index = NEIClientUtils.getGamemode() - 1;
+        } else {
+            if (NEIClientUtils.isValidGamemode("creative")) {
+                LayoutManager.gamemode.index = 0;
+            } else if (NEIClientUtils.isValidGamemode("creative+")) {
+                LayoutManager.gamemode.index = 1;
+            } else if (NEIClientUtils.isValidGamemode("adventure")) {
+                LayoutManager.gamemode.index = 2;
             }
         }
-        if (canPerformAction("heal"))
-            layoutButton(heal);
+        LayoutManager.bookmarksButton.index = NEIClientConfig.isBookmarkPanelHidden() ? 0 : 1;
+        LayoutManager.options.index = NEIClientConfig.getCheatMode();
 
-        itemPanel.resize(gui);
-        bookmarkPanel.resize(gui);
+        LayoutManager.magnet.state = 0x4 | (NEIClientConfig.getMagnetMode() ? 1 : 0);
+        LayoutManager.magnet.index = (LayoutManager.magnet.state & 0x1) != 0 ? 1 : 0;
 
-        more.w = more.h = less.w = less.h = 16;
-        less.x = itemPanel.pagePrev.x;
-        more.x = gui.width - less.w - 2;
-        more.y = less.y = gui.height - more.h - 2;
+        if (NEIClientConfig.canPerformAction("delete")) {
+            layoutButton(LayoutManager.delete);
+        }
 
-        quantity.x = less.x + less.w + 2;
-        quantity.y = less.y;
-        quantity.w = more.x - quantity.x - 2;
-        quantity.h = less.h;
+        if (NEIClientConfig.canPerformAction("rain")) {
+            layoutButton(LayoutManager.rain);
+        }
 
-        options.x = isEnabled() ? 0 : 6;
-        options.y = isEnabled() ? gui.height - 22 : gui.height - 28;
-        options.w = 22;
-        options.h = 22;
+        if (NEIClientUtils.isValidGamemode("creative") || NEIClientUtils.isValidGamemode("creative+")
+                || NEIClientUtils.isValidGamemode("adventure")) {
+            layoutButton(LayoutManager.gamemode);
+        }
 
-        bookmarksButton.x = 24 + (isEnabled() ? 0 : 6);
-        bookmarksButton.y = isEnabled() ? gui.height - 22 : gui.height - 28;
-        bookmarksButton.w = 22;
-        bookmarksButton.h = 22;
+        if (NEIClientConfig.canPerformAction("magnet")) {
+            layoutButton(LayoutManager.magnet);
+        }
 
-        searchField.y = gui.height - searchField.h - 2;
+        if (NEIClientConfig.canPerformAction("time")) {
+            for (int i = 0; i < 4; i++) {
+                LayoutManager.timeButtons[i].state = NEIClientConfig.disabledActions.contains(NEIActions.timeZones[i])
+                        ? 2
+                        : 0;
+                layoutButton(LayoutManager.timeButtons[i]);
+            }
+        }
 
-        dropDown.x = Math.min(numButtons, buttonCount) * 20 + 3;
-        dropDown.h = 20;
-        dropDown.w = itemPanel.x - dropDown.x - 3;
-        
-        searchField.h = 20;
-        searchField.w = 150;
-        searchField.x = (gui.width - searchField.w) / 2;
+        if (NEIClientConfig.canPerformAction("heal")) {
+            layoutButton(LayoutManager.heal);
+        }
 
-        if (!visiblity.showItemSection) {
-            searchField.setFocus(false);
+        layoutFooter(gui, visiblity);
+
+        LayoutManager.itemPanel.resize(gui);
+        LayoutManager.bookmarkPanel.resize(gui);
+        LayoutManager.itemZoom.resize(gui);
+    }
+
+    protected void layoutFooter(GuiContainer gui, VisiblityData visiblity) {
+
+        LayoutManager.options.x = MARGIN;
+        LayoutManager.options.y = gui.height - BUTTON_SIZE - MARGIN;
+        LayoutManager.options.w = LayoutManager.options.h = BUTTON_SIZE;
+
+        LayoutManager.bookmarksButton.x = LayoutManager.options.x + LayoutManager.options.w + MARGIN;
+        LayoutManager.bookmarksButton.y = gui.height - BUTTON_SIZE - MARGIN;
+        LayoutManager.bookmarksButton.w = LayoutManager.bookmarksButton.h = BUTTON_SIZE;
+
+        final Rectangle4i searchArea = getSearchFieldArea(gui);
+        final Rectangle4i quantityArea = getQuantityFieldArea(visiblity);
+
+        LayoutManager.searchField.x = searchArea.x;
+        LayoutManager.searchField.y = searchArea.y;
+        LayoutManager.searchField.w = searchArea.w;
+        LayoutManager.searchField.h = searchArea.h;
+
+        if (!NEIClientConfig.subsetWidgetOnTop() && visiblity.showSubsetDropdown) {
+            LayoutManager.dropDown.x = searchArea.x;
+            LayoutManager.dropDown.y = searchArea.y;
+            LayoutManager.dropDown.h = LayoutManager.dropDown.w = BUTTON_SIZE;
+
+            LayoutManager.searchField.x += BUTTON_SIZE;
+            LayoutManager.searchField.w -= BUTTON_SIZE;
+        } else {
+            LayoutManager.dropDown.h = 16;
+            LayoutManager.dropDown.w = 150;
+            LayoutManager.dropDown.y = MARGIN;
+            LayoutManager.dropDown.x = (gui.width - LayoutManager.dropDown.w) / 2;
+        }
+
+        if (quantityArea.w == ItemPanels.itemPanel.w) {
+            LayoutManager.more.w = LayoutManager.less.w = BUTTON_SIZE;
+            LayoutManager.more.h = LayoutManager.less.h = LayoutManager.quantity.h = quantityArea.h;
+            LayoutManager.more.y = LayoutManager.less.y = LayoutManager.quantity.y = quantityArea.y;
+
+            LayoutManager.less.x = quantityArea.x;
+            LayoutManager.more.x = quantityArea.x2() - BUTTON_SIZE;
+
+            LayoutManager.quantity.x = LayoutManager.less.x + LayoutManager.less.w + 1;
+            LayoutManager.quantity.w = LayoutManager.more.x - LayoutManager.quantity.x - 1;
+        } else {
+            LayoutManager.quantity.x = quantityArea.x;
+            LayoutManager.quantity.w = quantityArea.w - 18;
+            LayoutManager.quantity.y = LayoutManager.more.y = quantityArea.y;
+            LayoutManager.quantity.h = quantityArea.h;
+
+            LayoutManager.more.w = LayoutManager.less.w = 18;
+            LayoutManager.more.x = LayoutManager.less.x = LayoutManager.quantity.x + LayoutManager.quantity.w;
+            LayoutManager.more.h = LayoutManager.less.h = LayoutManager.quantity.h / 2;
+            LayoutManager.less.y = LayoutManager.more.y + LayoutManager.more.h;
         }
 
     }
 
+    private Rectangle4i getSearchFieldArea(GuiContainer gui) {
+        final Rectangle4i area = new Rectangle4i(0, 0, 0, BUTTON_SIZE);
+
+        if (NEIClientConfig.isSearchWidgetCentered()) {
+            area.w = Math.min(gui.xSize, 176) - MARGIN * 2;
+            area.x = (gui.width - area.w) / 2;
+            area.y = gui.height - BUTTON_SIZE - MARGIN;
+        } else if (NEIClientConfig.showItemQuantityWidget()) {
+            area.w = ItemPanels.itemPanel.w - (int) Math.max(BUTTON_SIZE * 2.5f, ItemPanels.itemPanel.w * 0.3f) - 1;
+            area.x = ItemPanels.itemPanel.x;
+            area.y = ItemPanels.itemPanel.y + ItemPanels.itemPanel.h - BUTTON_SIZE;
+        } else {
+            area.w = ItemPanels.itemPanel.w;
+            area.x = ItemPanels.itemPanel.x;
+            area.y = ItemPanels.itemPanel.y + ItemPanels.itemPanel.h - BUTTON_SIZE;
+        }
+
+        return area;
+    }
+
+    private Rectangle4i getQuantityFieldArea(VisiblityData visiblity) {
+        final Rectangle4i area = new Rectangle4i(0, 0, 0, BUTTON_SIZE);
+
+        if (!visiblity.showSearchSection || NEIClientConfig.isSearchWidgetCentered()) {
+            area.w = ItemPanels.itemPanel.w;
+            area.x = ItemPanels.itemPanel.x;
+        } else {
+            area.w = (int) Math.max(BUTTON_SIZE * 2.5f, ItemPanels.itemPanel.w * 0.3f);
+            area.x = ItemPanels.itemPanel.x + ItemPanels.itemPanel.w - area.w;
+        }
+
+        area.y = ItemPanels.itemPanel.y + ItemPanels.itemPanel.h - BUTTON_SIZE;
+
+        return area;
+    }
+
     public void layoutButton(Button button) {
-        button.x = 2 + (buttonCount % numButtons) * 20;
-        button.y = (buttonCount / numButtons) * 18;
 
         button.h = 17;
         button.w = button.contentWidth() + 6;
 
+        button.x = MARGIN + (buttonCount % numButtons) * (button.w + MARGIN);
+        button.y = MARGIN + (buttonCount / numButtons) * (button.h + MARGIN);
+
         buttonCount++;
     }
 
@@ -170,18 +230,20 @@ public class LayoutStyleMinecraft extends LayoutStyle
         GL11.glColor4f(1, 1, 1, 1);
 
         int tex;
-        if ((b.state & 0x3) == 2)
-            tex = 0;
-        else if ((b.state & 0x4) == 0 && b.contains(mousex, mousey) ||//not a state button and mouseover
-            (b.state & 0x3) == 1)//state active
+        if ((b.state & 0x3) == 2) tex = 0;
+        else if ((b.state & 0x4) == 0 && b.contains(mousex, mousey) || // not a state button and mouseover
+                (b.state & 0x3) == 1) // state active
             tex = 2;
-        else
-            tex = 1;
+        else tex = 1;
         LayoutManager.drawButtonBackground(b.x, b.y, b.w, b.h, true, tex);
 
         Image icon = b.getRenderIcon();
         if (icon == null) {
-            int colour = tex == 2 ? 0xffffa0 : tex == 0 ? 0x601010 : 0xe0e0e0;
+            int labelColor = b.getRenderLabelColor();
+            int colour = labelColor != 0 ? labelColor
+                    : tex == 2 ? ColorUtils.buttonLabelHover.getColor()
+                            : tex == 0 ? ColorUtils.buttonLabelDisabled.getColor()
+                                    : ColorUtils.buttonLabelNormal.getColor();
 
             drawStringC(b.getRenderLabel(), b.x + b.w / 2, b.y + (b.h - 8) / 2, colour);
         } else {
@@ -196,12 +258,16 @@ public class LayoutStyleMinecraft extends LayoutStyle
 
     @Override
     public void drawSubsetTag(String text, int x, int y, int w, int h, int state, boolean mouseover) {
-        if(state == 1)
+        if (state == 1) {
             GL11.glColor4f(0.65F, 0.65F, 0.65F, 1.0F);
-        else
+        } else {
             GL11.glColor4f(1, 1, 1, 1);
+        }
+
         LayoutManager.drawButtonBackground(x, y, w, h, false, state == 0 ? 0 : 1);
-        if(text != null)
-            drawStringC(text, x, y, w, h, state == 2 ? 0xFFE0E0E0 : 0xFFA0A0A0);
+
+        if (text != null) {
+            drawStringC(text, x, y, w, h, mouseover ? 0xFFFFFFA0 : (state == 2 ? 0xFFE0E0E0 : 0xFFA0A0A0));
+        }
     }
 }

src/main/java/codechicken/nei/NEIActions.java

@@ -5,47 +5,40 @@ import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
 
-public class NEIActions
-{
+public class NEIActions {
+
     public static final int protocol = 0;
-    
+
     public static HashMap<String, NEIActions> nameActionMap = new HashMap<>();
     public static HashSet<String> canDisable = new HashSet<>();
 
-    public static void addAction(String name, String base, boolean smpreq)
-    {
+    public static void addAction(String name, String base, boolean smpreq) {
         NEIActions action = new NEIActions(name, base, smpreq);
         nameActionMap.put(name, action);
     }
-    
-    private static void addAction(String name, String base)
-    {
+
+    private static void addAction(String name, String base) {
         addAction(name, base, false);
     }
 
-    public static void addAction(String name)
-    {
+    public static void addAction(String name) {
         addAction(name, name);
     }
 
-    private static void addAction(String name, boolean smpreq)
-    {
+    private static void addAction(String name, boolean smpreq) {
         addAction(name, name, smpreq);
     }
-    
-    public static String base(String name)
-    {
+
+    public static String base(String name) {
         NEIActions action = nameActionMap.get(name);
         return action == null ? name : action.base;
     }
 
-    public static boolean smpRequired(String name)
-    {
+    public static boolean smpRequired(String name) {
         return nameActionMap.get(name).smpreq;
     }
-    
-    public static void init()
-    {
+
+    public static void init() {
         addAction("time");
         addAction("dawn", "time");
         addAction("noon", "time");
@@ -61,6 +54,7 @@ public class NEIActions
         addAction("magnet", true);
         addAction("enchant", true);
         addAction("potion", true);
+        addAction("autocraft");
 
         canDisable.add("dawn");
         canDisable.add("noon");
@@ -68,27 +62,23 @@ public class NEIActions
         canDisable.add("midnight");
         canDisable.add("rain");
     }
-    
-    public static final String[] timeZones = new String[]{"dawn", "noon", "dusk", "midnight"};
-    public static final String[] gameModes = new String[]{"survival", "creative", "creative+", "adventure"};
+
+    public static final String[] timeZones = new String[] { "dawn", "noon", "dusk", "midnight" };
+    public static final String[] gameModes = new String[] { "survival", "creative", "creative+", "adventure" };
 
     public String name;
     public String base;
     public boolean smpreq;
-    
-    public NEIActions(String name, String base, boolean smpreq)
-    {
+
+    public NEIActions(String name, String base, boolean smpreq) {
         this.name = name;
         this.base = base;
         this.smpreq = smpreq;
     }
 
-    public static List<String> baseActions()
-    {
+    public static List<String> baseActions() {
         List<String> list = new LinkedList<>();
-        for(NEIActions a : nameActionMap.values())
-            if(a.base.equals(a.name))
-                list.add(a.name);
+        for (NEIActions a : nameActionMap.values()) if (a.base.equals(a.name)) list.add(a.name);
         return list;
     }
 }

src/main/java/codechicken/nei/NEICPH.java

@@ -1,54 +1,78 @@
 package codechicken.nei;
 
+import static codechicken.nei.PacketIDs.C2S;
+import static codechicken.nei.PacketIDs.S2C;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.inventory.GuiInventory;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.network.play.INetHandlerPlayClient;
+import net.minecraft.util.ChatComponentTranslation;
+import net.minecraft.world.World;
+
 import codechicken.core.ClientUtils;
 import codechicken.lib.inventory.InventoryUtils;
 import codechicken.lib.packet.PacketCustom;
 import codechicken.lib.packet.PacketCustom.IClientPacketHandler;
+import codechicken.nei.commands.CommandBookmarkAdd;
 import cpw.mods.fml.relauncher.Side;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.gui.inventory.GuiInventory;
-import net.minecraft.item.ItemStack;
-import net.minecraft.network.play.INetHandlerPlayClient;
-import net.minecraft.util.ChatComponentTranslation;
-import net.minecraft.world.World;
 
-public class NEICPH implements IClientPacketHandler
-{
+public class NEICPH implements IClientPacketHandler {
+
     public static final String channel = "NEI";
 
     @Override
     public void handlePacket(PacketCustom packet, Minecraft mc, INetHandlerPlayClient netHandler) {
         switch (packet.getType()) {
-            case 1:
+            case S2C.SEND_SERVER_SIDE_CHECK:
                 handleSMPCheck(packet.readUByte(), packet.readString(), mc.theWorld);
                 break;
-            case 10:
+            case S2C.SEND_LOGIN_STATE:
                 handleLoginState(packet);
                 break;
-            case 11:
+            case S2C.SEND_ACTION_DISABLED:
                 handleActionDisabled(packet);
                 break;
-            case 12:
+            case S2C.SEND_ACTION_ENABLED:
                 handleActionEnabled(packet);
                 break;
-            case 13:
+            case S2C.SEND_MAGNETIC_ITEM:
                 ClientHandler.instance().addSMPMagneticItem(packet.readInt(), mc.theWorld);
                 break;
-            case 14:
+            case S2C.SEND_GAME_MODE:
                 handleGamemode(mc, packet.readUByte());
                 break;
-            case 21:
-                ClientUtils.openSMPGui(packet.readUByte(), new GuiEnchantmentModifier(mc.thePlayer.inventory, mc.theWorld, 0, 0, 0));
+            case S2C.OPEN_ENCHANTMENT_GUI:
+                ClientUtils.openSMPGui(
+                        packet.readUByte(),
+                        new GuiEnchantmentModifier(mc.thePlayer.inventory, mc.theWorld, 0, 0, 0));
                 break;
-            case 23:
-                if (packet.readBoolean())
-                    ClientUtils.openSMPGui(packet.readUByte(), new GuiExtendedCreativeInv(new ContainerCreativeInv(mc.thePlayer, new ExtendedCreativeInv(null, Side.CLIENT))));
-                else
-                    mc.displayGuiScreen(new GuiInventory(mc.thePlayer));
+            case S2C.SET_CREATIVE_PLUS_MODE:
+                if (packet.readBoolean()) ClientUtils.openSMPGui(
+                        packet.readUByte(),
+                        new GuiExtendedCreativeInv(
+                                new ContainerCreativeInv(mc.thePlayer, new ExtendedCreativeInv(null, Side.CLIENT))));
+                else mc.displayGuiScreen(new GuiInventory(mc.thePlayer));
                 break;
-            case 24:
+            case S2C.OPEN_POTION_GUI:
                 ClientUtils.openSMPGui(packet.readUByte(), new GuiPotionCreator(mc.thePlayer.inventory));
                 break;
+            case S2C.CACHE_BOOKMARK_DATA:
+                handleCacheBookmarkData(packet);
+                break;
+            case S2C.SYNC:
+                ServerSync.onReply(packet.readInt());
+                break;
+        }
+    }
+
+    private void handleCacheBookmarkData(PacketCustom packet) {
+        final String payloadId = packet.readString();
+        final NBTTagCompound payloadTag = packet.readNBTTagCompound();
+
+        if (payloadTag != null) {
+            CommandBookmarkAdd.cachePayload(payloadId, payloadTag);
         }
     }
 
@@ -58,40 +82,32 @@ public class NEICPH implements IClientPacketHandler
 
     private void handleActionEnabled(PacketCustom packet) {
         String name = packet.readString();
-        if (packet.readBoolean())
-            NEIClientConfig.enabledActions.add(name);
-        else
-            NEIClientConfig.enabledActions.remove(name);
+        if (packet.readBoolean()) NEIClientConfig.enabledActions.add(name);
+        else NEIClientConfig.enabledActions.remove(name);
     }
 
     private void handleActionDisabled(PacketCustom packet) {
         String name = packet.readString();
-        if (packet.readBoolean())
-            NEIClientConfig.disabledActions.add(name);
-        else
-            NEIClientConfig.disabledActions.remove(name);
+        if (packet.readBoolean()) NEIClientConfig.disabledActions.add(name);
+        else NEIClientConfig.disabledActions.remove(name);
     }
 
     private void handleLoginState(PacketCustom packet) {
         NEIClientConfig.permissableActions.clear();
         int num = packet.readUByte();
-        for (int i = 0; i < num; i++)
-            NEIClientConfig.permissableActions.add(packet.readString());
+        for (int i = 0; i < num; i++) NEIClientConfig.permissableActions.add(packet.readString());
 
         NEIClientConfig.disabledActions.clear();
         num = packet.readUByte();
-        for (int i = 0; i < num; i++)
-            NEIClientConfig.disabledActions.add(packet.readString());
+        for (int i = 0; i < num; i++) NEIClientConfig.disabledActions.add(packet.readString());
 
         NEIClientConfig.enabledActions.clear();
         num = packet.readUByte();
-        for (int i = 0; i < num; i++)
-            NEIClientConfig.enabledActions.add(packet.readString());
+        for (int i = 0; i < num; i++) NEIClientConfig.enabledActions.add(packet.readString());
 
         NEIClientConfig.bannedBlocks.clear();
         num = packet.readInt();
-        for(int i = 0; i < num; i++)
-            NEIClientConfig.bannedBlocks.add(packet.readItemStack());
+        for (int i = 0; i < num; i++) NEIClientConfig.bannedBlocks.add(packet.readItemStack());
 
         if (NEIClientUtils.getGuiContainer() != null)
             LayoutManager.instance().refresh(NEIClientUtils.getGuiContainer());
@@ -106,7 +122,7 @@ public class NEICPH implements IClientPacketHandler
             try {
                 ClientHandler.instance().loadWorld(world, true);
                 NEIClientConfig.setHasSMPCounterPart(true);
-                NEIClientConfig.loadWorld(getSaveName(worldName));
+                NEIClientConfig.loadWorld(getSaveName());
                 sendRequestLoginInfo();
             } catch (Exception e) {
                 NEIClientConfig.logger.error("Error handling SMP Check", e);
@@ -114,15 +130,14 @@ public class NEICPH implements IClientPacketHandler
         }
     }
 
-    private static String getSaveName(String worldName) {
-        if (Minecraft.getMinecraft().isSingleplayer())
-            return "local/" + ClientUtils.getWorldSaveName();
+    private static String getSaveName() {
+        if (Minecraft.getMinecraft().isSingleplayer()) return "local/" + ClientUtils.getWorldSaveName();
 
-        return "remote/" + ClientUtils.getServerIP().replace(':', '~') + "/" + worldName;
+        return "remote/" + ClientUtils.getServerIP().replace(':', '~');
     }
 
     public static void sendGiveItem(ItemStack spawnstack, boolean infinite, boolean doSpawn) {
-        PacketCustom packet = new PacketCustom(channel, 1);
+        PacketCustom packet = new PacketCustom(channel, C2S.GIVE_ITEM);
         packet.writeItemStack(spawnstack, true);
         packet.writeBoolean(infinite);
         packet.writeBoolean(doSpawn);
@@ -130,7 +145,7 @@ public class NEICPH implements IClientPacketHandler
     }
 
     public static void sendDeleteAllItems() {
-        PacketCustom packet = new PacketCustom(channel, 4);
+        PacketCustom packet = new PacketCustom(channel, C2S.DELETE_ALL_ITEMS);
         packet.sendToServer();
     }
 
@@ -144,12 +159,18 @@ public class NEICPH implements IClientPacketHandler
             sendSetSlot(slot, item, false);
         }
 
-        PacketCustom packet = new PacketCustom(channel, 11);
+        PacketCustom packet = new PacketCustom(channel, C2S.REQUEST_CONTAINER_CONTENTS);
+        packet.sendToServer();
+    }
+
+    public static void sendRequestContainer() {
+        PacketCustom packet = new PacketCustom(channel, C2S.REQUEST_CONTAINER);
+        packet.writeInt(Minecraft.getMinecraft().thePlayer.openContainer.getInventory().size());
         packet.sendToServer();
     }
 
     public static void sendSetSlot(int slot, ItemStack stack, boolean container) {
-        PacketCustom packet = new PacketCustom(channel, 5);
+        PacketCustom packet = new PacketCustom(channel, C2S.SET_SLOT);
         packet.writeBoolean(container);
         packet.writeShort(slot);
         packet.writeItemStack(stack);
@@ -157,38 +178,44 @@ public class NEICPH implements IClientPacketHandler
     }
 
     private static void sendRequestLoginInfo() {
-        PacketCustom packet = new PacketCustom(channel, 10);
+        PacketCustom packet = new PacketCustom(channel, C2S.REQUEST_LOGIN_INFO);
         packet.sendToServer();
     }
 
     public static void sendToggleMagnetMode() {
-        PacketCustom packet = new PacketCustom(channel, 6);
+        PacketCustom packet = new PacketCustom(channel, C2S.TOGGLE_MAGNET);
         packet.sendToServer();
     }
 
     public static void sendSetTime(int hour) {
-        PacketCustom packet = new PacketCustom(channel, 7);
+        PacketCustom packet = new PacketCustom(channel, C2S.SET_TIME);
         packet.writeByte(hour);
         packet.sendToServer();
     }
 
     public static void sendHeal() {
-        PacketCustom packet = new PacketCustom(channel, 8);
+        PacketCustom packet = new PacketCustom(channel, C2S.HEAL);
         packet.sendToServer();
     }
 
     public static void sendToggleRain() {
-        PacketCustom packet = new PacketCustom(channel, 9);
+        PacketCustom packet = new PacketCustom(channel, C2S.TOGGLE_RAIN);
+        packet.sendToServer();
+    }
+
+    public static void sendChatLink(NBTTagCompound payloadTag) {
+        PacketCustom packet = new PacketCustom(channel, C2S.SEND_CHAT_ITEM_LINK);
+        packet.writeNBTTagCompound(payloadTag);
         packet.sendToServer();
     }
 
     public static void sendOpenEnchantmentWindow() {
-        PacketCustom packet = new PacketCustom(channel, 21);
+        PacketCustom packet = new PacketCustom(channel, C2S.REQUEST_ENCHANTMENT_GUI);
         packet.sendToServer();
     }
 
     public static void sendModifyEnchantment(int enchID, int level, boolean add) {
-        PacketCustom packet = new PacketCustom(channel, 22);
+        PacketCustom packet = new PacketCustom(channel, C2S.MODIFY_ENCHANTMENT);
         packet.writeByte(enchID);
         packet.writeByte(level);
         packet.writeBoolean(add);
@@ -196,32 +223,30 @@ public class NEICPH implements IClientPacketHandler
     }
 
     public static void sendSetPropertyDisabled(String name, boolean enable) {
-        PacketCustom packet = new PacketCustom(channel, 12);
+        PacketCustom packet = new PacketCustom(channel, C2S.CHANGE_PROPERTY);
         packet.writeString(name);
         packet.writeBoolean(enable);
         packet.sendToServer();
     }
 
     public static void sendGamemode(int mode) {
-        new PacketCustom(channel, 13)
-                .writeByte(mode)
-                .sendToServer();
+        new PacketCustom(channel, C2S.SET_GAME_MODE).writeByte(mode).sendToServer();
     }
 
     public static void sendCreativeInv(boolean open) {
-        PacketCustom packet = new PacketCustom(channel, 23);
+        PacketCustom packet = new PacketCustom(channel, C2S.SET_CREATIVE_PLUS_MODE);
         packet.writeBoolean(open);
         packet.sendToServer();
     }
 
     public static void sendCreativeScroll(int steps) {
-        PacketCustom packet = new PacketCustom(channel, 14);
+        PacketCustom packet = new PacketCustom(channel, C2S.CYCLE_CREATIVE_INV);
         packet.writeInt(steps);
         packet.sendToServer();
     }
 
     public static void sendMobSpawnerID(int x, int y, int z, String mobtype) {
-        PacketCustom packet = new PacketCustom(channel, 15);
+        PacketCustom packet = new PacketCustom(channel, C2S.SEND_MOB_SPAWNER_ID);
         packet.writeCoord(x, y, z);
         packet.writeString(mobtype);
         packet.sendToServer();
@@ -229,15 +254,16 @@ public class NEICPH implements IClientPacketHandler
 
     public static void sendOpenPotionWindow() {
         ItemStack[] potionStore = new ItemStack[9];
-        InventoryUtils.readItemStacksFromTag(potionStore, NEIClientConfig.global.nbt.getCompoundTag("potionStore").getTagList("items", 10));
-        PacketCustom packet = new PacketCustom(channel, 24);
-        for (ItemStack stack : potionStore)
-            packet.writeItemStack(stack);
+        InventoryUtils.readItemStacksFromTag(
+                potionStore,
+                NEIClientConfig.global.nbt.getCompoundTag("potionStore").getTagList("items", 10));
+        PacketCustom packet = new PacketCustom(channel, C2S.REQUEST_POTION_GUI);
+        for (ItemStack stack : potionStore) packet.writeItemStack(stack);
         packet.sendToServer();
     }
 
     public static void sendDummySlotSet(int slotNumber, ItemStack stack) {
-        PacketCustom packet = new PacketCustom(channel, 25);
+        PacketCustom packet = new PacketCustom(channel, C2S.SET_DUMMY_SLOT);
         packet.writeShort(slotNumber);
         packet.writeItemStack(stack, true);
         packet.sendToServer();

src/main/java/codechicken/nei/NEIChestGuiHandler.java

@@ -1,17 +1,18 @@
 package codechicken.nei;
 
-import codechicken.nei.api.INEIGuiAdapter;
-import codechicken.nei.api.TaggedInventoryArea;
+import java.util.Collections;
+import java.util.List;
+
 import net.minecraft.client.gui.inventory.GuiChest;
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.inventory.ContainerChest;
 import net.minecraft.item.ItemStack;
 
-import java.util.Collections;
-import java.util.List;
+import codechicken.nei.api.INEIGuiAdapter;
+import codechicken.nei.api.TaggedInventoryArea;
+
+public class NEIChestGuiHandler extends INEIGuiAdapter {
 
-public class NEIChestGuiHandler extends INEIGuiAdapter
-{
     public int chestSize(GuiContainer gui) {
         return ((ContainerChest) gui.inventorySlots).getLowerChestInventory().getSizeInventory();
     }
@@ -23,6 +24,8 @@ public class NEIChestGuiHandler extends INEIGuiAdapter
 
     @Override
     public List<TaggedInventoryArea> getInventoryAreas(GuiContainer gui) {
-        return gui instanceof GuiChest ? Collections.singletonList(new TaggedInventoryArea("Chest", 0, chestSize(gui), gui.inventorySlots)) : null;
+        return gui instanceof GuiChest
+                ? Collections.singletonList(new TaggedInventoryArea("Chest", 0, chestSize(gui), gui.inventorySlots))
+                : null;
     }
 }

src/main/java/codechicken/nei/NEIClientUtils.java

@@ -1,46 +1,115 @@
 package codechicken.nei;
 
-import codechicken.lib.inventory.InventoryRange;
-import codechicken.lib.inventory.InventoryUtils;
-import codechicken.lib.util.LangProxy;
-import codechicken.nei.api.GuiInfo;
-import codechicken.nei.api.IInfiniteItemHandler;
-import codechicken.nei.api.ItemInfo;
-import com.google.common.collect.Iterables;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.audio.PositionedSoundRecord;
-import net.minecraft.client.gui.inventory.GuiContainer;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.inventory.Container;
-import net.minecraft.inventory.Slot;
-import net.minecraft.item.Item;
-import net.minecraft.item.ItemStack;
-import net.minecraft.util.IChatComponent;
-import net.minecraft.util.ResourceLocation;
-import org.lwjgl.input.Keyboard;
-
-import java.text.MessageFormat;
-import java.text.NumberFormat;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.stream.Collectors;
-
 import static codechicken.nei.NEIClientConfig.canCheatItem;
 import static codechicken.nei.NEIClientConfig.canPerformAction;
-import static codechicken.nei.NEIClientConfig.getItemQuantity;
 import static codechicken.nei.NEIClientConfig.getStringArrSetting;
 import static codechicken.nei.NEIClientConfig.getStringSetting;
 import static codechicken.nei.NEIClientConfig.hasSMPCounterPart;
 import static codechicken.nei.NEIClientConfig.invCreativeMode;
 import static codechicken.nei.NEIClientConfig.world;
 
-public class NEIClientUtils extends NEIServerUtils
-{
+import java.awt.Color;
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.math.RoundingMode;
+import java.nio.file.Files;
+import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
+import java.text.MessageFormat;
+import java.text.NumberFormat;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.IdentityHashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.stream.Collectors;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.audio.PositionedSoundRecord;
+import net.minecraft.client.gui.FontRenderer;
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.client.renderer.OpenGlHelper;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.inventory.Container;
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.IChatComponent;
+import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.fluids.FluidStack;
+
+import org.lwjgl.input.Keyboard;
+import org.lwjgl.opengl.GL11;
+
+import com.google.common.collect.Iterables;
+import com.gtnewhorizon.gtnhlib.util.numberformatting.NumberFormatUtil;
+
+import codechicken.lib.gui.GuiDraw;
+import codechicken.lib.inventory.InventoryRange;
+import codechicken.lib.inventory.InventoryUtils;
+import codechicken.lib.util.LangProxy;
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.api.GuiInfo;
+import codechicken.nei.api.IInfiniteItemHandler;
+import codechicken.nei.api.ItemInfo;
+import codechicken.nei.recipe.GuiOverlayButton.ItemOverlayState;
+import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.NEIKeyboardUtils;
+
+public class NEIClientUtils extends NEIServerUtils {
+
+    private static final Set<String> REPORTED = ConcurrentHashMap.newKeySet();
+
+    public static class Alignment {
+
+        public final int x, y;
+
+        public static final Alignment TopLeft = new Alignment(-1, -1);
+        public static final Alignment TopCenter = new Alignment(0, -1);
+        public static final Alignment TopRight = new Alignment(1, -1);
+        public static final Alignment CenterLeft = new Alignment(-1, 0);
+        public static final Alignment Center = new Alignment(0, 0);
+        public static final Alignment CenterRight = new Alignment(1, 0);
+        public static final Alignment BottomLeft = new Alignment(-1, 1);
+        public static final Alignment BottomCenter = new Alignment(0, 1);
+        public static final Alignment BottomRight = new Alignment(1, 1);
+
+        public Alignment(int x, int y) {
+            this.x = x;
+            this.y = y;
+        }
+
+        public float getX(float parentWidth, float childWidth) {
+            final float x = (this.x + 1) / 2f;
+            return parentWidth * x - childWidth * x;
+        }
+
+        public float getY(float parentHeight, float childHeight) {
+            final float y = (this.y + 1) / 2f;
+            return parentHeight * y - childHeight * y;
+        }
+    }
+
     public static LangProxy lang = new LangProxy("nei");
 
+    /** Formats a number with group separator and at most 2 fraction digits. */
+    private static final Map<Locale, DecimalFormat> decimalFormatters = new HashMap<>();
+    private static final DecimalFormat CHANCE_FORMAT = new DecimalFormat("##0.##%");
+
+    public static final int ALT_HASH = NEIKeyboardUtils.ALT_HASH;
+    public static final int SHIFT_HASH = NEIKeyboardUtils.SHIFT_HASH;
+    public static final int CTRL_HASH = NEIKeyboardUtils.CTRL_HASH;
+
     public static Minecraft mc() {
         return Minecraft.getMinecraft();
     }
@@ -50,8 +119,43 @@ public class NEIClientUtils extends NEIServerUtils
     }
 
     public static void printChatMessage(IChatComponent msg) {
-        if (mc().ingameGUI != null)
-            mc().ingameGUI.getChatGUI().printChatMessage(msg);
+        if (mc().ingameGUI != null) mc().ingameGUI.getChatGUI().printChatMessage(msg);
+    }
+
+    private static DecimalFormat getDecimalFormat() {
+        return decimalFormatters.computeIfAbsent(Locale.getDefault(Locale.Category.FORMAT), locale -> {
+            DecimalFormat numberFormat = new DecimalFormat(); // uses the necessary locale inside anyway
+            numberFormat.setGroupingUsed(true);
+            numberFormat.setMaximumFractionDigits(2);
+            numberFormat.setRoundingMode(RoundingMode.HALF_UP);
+            DecimalFormatSymbols decimalFormatSymbols = numberFormat.getDecimalFormatSymbols();
+            decimalFormatSymbols.setGroupingSeparator(','); // Use sensible separator for best clarity.
+            numberFormat.setDecimalFormatSymbols(decimalFormatSymbols);
+
+            return numberFormat;
+        });
+    }
+
+    public static String formatNumber(Number aNumber) {
+
+        if (NEIModContainer.isGTNHLibLoaded()) {
+            return NumberFormatUtil.formatNumber(aNumber);
+        }
+
+        return getDecimalFormat().format(aNumber);
+    }
+
+    public static String formatFluid(Number aNumber) {
+
+        if (NEIModContainer.isGTNHLibLoaded()) {
+            return NumberFormatUtil.formatFluid(aNumber);
+        }
+
+        return getDecimalFormat().format(aNumber) + " L";
+    }
+
+    public static String formatChance(float chance) {
+        return CHANCE_FORMAT.format(chance);
     }
 
     public static void deleteHeldItem() {
@@ -59,7 +163,8 @@ public class NEIClientUtils extends NEIServerUtils
     }
 
     public static void dropHeldItem() {
-        mc().playerController.windowClick(((GuiContainer) mc().currentScreen).inventorySlots.windowId, -999, 0, 0, mc().thePlayer);
+        mc().playerController
+                .windowClick(((GuiContainer) mc().currentScreen).inventorySlots.windowId, -999, 0, 0, mc().thePlayer);
     }
 
     public static void deleteSlotStack(int slotNumber) {
@@ -67,12 +172,11 @@ public class NEIClientUtils extends NEIServerUtils
     }
 
     public static void decreaseSlotStack(int slotNumber) {
-        ItemStack stack = slotNumber == -999 ? getHeldItem() : mc().thePlayer.openContainer.getSlot(slotNumber).getStack();
-        if (stack == null)
-            return;
+        ItemStack stack = slotNumber == -999 ? getHeldItem()
+                : mc().thePlayer.openContainer.getSlot(slotNumber).getStack();
+        if (stack == null) return;
 
-        if (stack.stackSize == 1)
-            deleteSlotStack(slotNumber);
+        if (stack.stackSize == 1) deleteSlotStack(slotNumber);
         else {
             stack = stack.copy();
             stack.stackSize--;
@@ -88,8 +192,7 @@ public class NEIClientUtils extends NEIServerUtils
         Container c = getGuiContainer().inventorySlots;
         for (int i = 0; i < c.inventorySlots.size(); i++) {
             Slot slot = c.getSlot(i);
-            if (slot == null)
-                continue;
+            if (slot == null) continue;
 
             ItemStack stack = slot.getStack();
             if (stack != null && stack.getItem() == type.getItem() && stack.getItemDamage() == type.getItemDamage()) {
@@ -106,21 +209,18 @@ public class NEIClientUtils extends NEIServerUtils
     public static void setSlotContents(int slot, ItemStack item, boolean containerInv) {
         NEICPH.sendSetSlot(slot, item, containerInv);
 
-        if (slot == -999)
-            mc().thePlayer.inventory.setItemStack(item);
+        if (slot == -999) mc().thePlayer.inventory.setItemStack(item);
     }
 
     /**
-     * @param mode      -1 = normal cheats, 0 = no infinites, 1 = replenish stack
+     * @param mode -1 = normal cheats, 0 = no infinites, 1 = replenish stack
      */
     public static void cheatItem(ItemStack stack, int button, int mode) {
-        if (!canCheatItem(stack))
-            return;
+        if (!canCheatItem(stack)) return;
 
-        if (mode == -1 && button == 0 && shiftKey() && NEIClientConfig.hasSMPCounterPart()) {
+        if (mode == -1 && button == 0 && controlKey() && NEIClientConfig.hasSMPCounterPart()) {
             for (IInfiniteItemHandler handler : ItemInfo.infiniteHandlers) {
-                if (!handler.canHandleItem(stack))
-                    continue;
+                if (!handler.canHandleItem(stack)) continue;
 
                 ItemStack inf = handler.getInfiniteItem(stack);
                 if (inf != null) {
@@ -152,25 +252,24 @@ public class NEIClientUtils extends NEIServerUtils
         ItemStack stack = copyStack(base, i);
         if (hasSMPCounterPart()) {
             ItemStack typestack = copyStack(stack, 1);
-            if (!infinite && !canItemFitInInventory(mc().thePlayer, stack) && (mc().currentScreen instanceof GuiContainer)) {
+            if (!infinite && !canItemFitInInventory(mc().thePlayer, stack)
+                    && (mc().currentScreen instanceof GuiContainer)) {
                 GuiContainer gui = getGuiContainer();
                 final List<Iterable<Integer>> handlerSlots;
                 try {
                     GuiInfo.readLock.lock();
                     handlerSlots = GuiInfo.guiHandlers.stream()
-                        .map(handler -> handler.getItemSpawnSlots(gui, typestack))
-                        .filter(x -> x != null)
-                        .collect(Collectors.toCollection(LinkedList::new));
+                            .map(handler -> handler.getItemSpawnSlots(gui, typestack)).filter(x -> x != null)
+                            .collect(Collectors.toCollection(LinkedList::new));
                 } finally {
                     GuiInfo.readLock.unlock();
                 }
 
                 int increment = typestack.getMaxStackSize();
                 int given = 0;
-                for(int slotNo : Iterables.concat(handlerSlots)) {
+                for (int slotNo : Iterables.concat(handlerSlots)) {
                     Slot slot = gui.inventorySlots.getSlot(slotNo);
-                    if(!slot.isItemValid(typestack) || !InventoryUtils.canStack(slot.getStack(), typestack))
-                        continue;
+                    if (!slot.isItemValid(typestack) || !InventoryUtils.canStack(slot.getStack(), typestack)) continue;
 
                     int qty = Math.min(stack.stackSize - given, increment);
                     int current = slot.getHasStack() ? slot.getStack().stackSize : 0;
@@ -180,17 +279,15 @@ public class NEIClientUtils extends NEIServerUtils
                     slot.putStack(newStack);
                     setSlotContents(slotNo, newStack, true);
                     given += qty;
-                    if(given >= stack.stackSize)
-                        break;
+                    if (given >= stack.stackSize) break;
                 }
-                if(given > 0)
-                    NEICPH.sendGiveItem(copyStack(typestack, given), false, false);
-            } else
-                NEICPH.sendGiveItem(stack, infinite, true);
+                if (given > 0) NEICPH.sendGiveItem(copyStack(typestack, given), false, false);
+            } else NEICPH.sendGiveItem(stack, infinite, true);
         } else {
-            for (int given = 0; given < stack.stackSize; ) {
+            for (int given = 0; given < stack.stackSize;) {
                 int qty = Math.min(stack.stackSize - given, stack.getMaxStackSize());
-                sendCommand(getStringSetting("command.item"),
+                sendCommand(
+                        getStringSetting("command.item"),
                         mc().thePlayer.getCommandSenderName(),
                         Item.getIdFromItem(stack.getItem()),
                         qty,
@@ -206,29 +303,104 @@ public class NEIClientUtils extends NEIServerUtils
         return InventoryUtils.getInsertibleQuantity(new InventoryRange(player.inventory, 0, 36), itemstack) > 0;
     }
 
+    public static List<ItemOverlayState> presenceOverlay(List<PositionedStack> ingredients, List<ItemStack> invStacks) {
+        final List<ItemOverlayState> states = new ArrayList<>();
+        final Map<ItemStack, Long> remainingFluid = new IdentityHashMap<>();
+
+        for (PositionedStack stack : ingredients) {
+            boolean found;
+
+            if (StackInfo.isFluidDisplayItem(stack.item)) {
+                final FluidStack requiredFluid = StackInfo.getFluid(stack.item);
+                found = requiredFluid != null && consumeFluid(invStacks, remainingFluid, requiredFluid);
+            } else {
+                found = false;
+
+                for (ItemStack is : invStacks) {
+                    if (is.stackSize > 0 && stack.contains(is)) {
+                        is.stackSize--;
+                        found = true;
+                        break;
+                    }
+                }
+            }
+
+            states.add(new ItemOverlayState(stack, found));
+        }
+
+        return states;
+    }
+
+    private static boolean consumeFluid(List<ItemStack> invStacks, Map<ItemStack, Long> remainingFluid,
+            FluidStack requiredFluid) {
+        long need = requiredFluid.amount;
+        final List<ItemStack> matched = new ArrayList<>();
+
+        for (ItemStack is : invStacks) {
+            if (need <= 0) {
+                break;
+            }
+
+            if (is.stackSize <= 0) {
+                continue;
+            }
+
+            final FluidStack invFluid = StackInfo.getFluid(is);
+
+            if (invFluid == null || !invFluid.isFluidEqual(requiredFluid)) {
+                continue;
+            }
+
+            final long available = remainingFluid.computeIfAbsent(is, k -> (long) invFluid.amount * is.stackSize);
+            if (available <= 0) {
+                continue;
+            }
+
+            matched.add(is);
+            need -= available;
+        }
+
+        if (need > 0) {
+            return false;
+        }
+
+        long remainingNeed = requiredFluid.amount;
+        for (ItemStack is : matched) {
+            final long available = remainingFluid.get(is);
+            final long consumed = Math.min(available, remainingNeed);
+
+            remainingFluid.put(is, available - consumed);
+            remainingNeed -= consumed;
+
+            if (remainingNeed <= 0) {
+                break;
+            }
+        }
+
+        return true;
+    }
+
     public static boolean shiftKey() {
         return Keyboard.isKeyDown(Keyboard.KEY_LSHIFT) || Keyboard.isKeyDown(Keyboard.KEY_RSHIFT);
     }
 
     public static boolean controlKey() {
+        if (Minecraft.isRunningOnMac) {
+            return Keyboard.isKeyDown(Keyboard.KEY_LMETA) || Keyboard.isKeyDown(Keyboard.KEY_RMETA);
+        }
         return Keyboard.isKeyDown(Keyboard.KEY_LCONTROL) || Keyboard.isKeyDown(Keyboard.KEY_RCONTROL);
     }
 
     public static int getGamemode() {
-        if (invCreativeMode())
-            return 2;
-        else if (mc().playerController.isInCreativeMode())
-            return 1;
-        else if (mc().playerController.currentGameType.isAdventure())
-            return 3;
-        else
-            return 0;
+        if (invCreativeMode()) return 2;
+        else if (mc().playerController.isInCreativeMode()) return 1;
+        else if (mc().playerController.currentGameType.isAdventure()) return 3;
+        else return 0;
     }
 
     public static boolean isValidGamemode(String s) {
-        return s.equals("survival") ||
-                canPerformAction(s) &&
-                        Arrays.asList(getStringArrSetting("inventory.gamemodes")).contains(s);
+        return s.equals("survival")
+                || canPerformAction(s) && Arrays.asList(getStringArrSetting("inventory.gamemodes")).contains(s);
     }
 
     public static int getNextGamemode() {
@@ -236,8 +408,7 @@ public class NEIClientUtils extends NEIServerUtils
         int nmode = mode;
         while (true) {
             nmode = (nmode + 1) % NEIActions.gameModes.length;
-            if (nmode == mode || isValidGamemode(NEIActions.gameModes[nmode]))
-                break;
+            if (nmode == mode || isValidGamemode(NEIActions.gameModes[nmode])) break;
         }
         return nmode;
     }
@@ -245,13 +416,13 @@ public class NEIClientUtils extends NEIServerUtils
     public static void cycleGamemode() {
         int mode = getGamemode();
         int nmode = getNextGamemode();
-        if (mode == nmode)
-            return;
+        if (mode == nmode) return;
 
-        if (hasSMPCounterPart())
-            NEICPH.sendGamemode(nmode);
-        else
-            sendCommand(getStringSetting("command.creative"), getGameType(nmode), mc().thePlayer.getCommandSenderName());
+        if (hasSMPCounterPart()) NEICPH.sendGamemode(nmode);
+        else sendCommand(
+                getStringSetting("command.creative"),
+                getGameType(nmode),
+                mc().thePlayer.getCommandSenderName());
     }
 
     public static long getTime() {
@@ -266,22 +437,18 @@ public class NEIClientUtils extends NEIServerUtils
         long day = (getTime() / 24000L) * 24000L;
         long newTime = day + 24000L + hour * 1000;
 
-        if (hasSMPCounterPart())
-            NEICPH.sendSetTime(hour);
-        else
-            sendCommand(getStringSetting("command.time"), newTime);
+        if (hasSMPCounterPart()) NEICPH.sendSetTime(hour);
+        else sendCommand(getStringSetting("command.time"), newTime);
     }
 
     public static void sendCommand(String command, Object... args) {
-        if (command.length() == 0)
-            return;
+        if (command.isEmpty()) return;
 
         NumberFormat numberformat = NumberFormat.getIntegerInstance();
         numberformat.setGroupingUsed(false);
         MessageFormat messageformat = new MessageFormat(command);
-        for (int i = 0; i < args.length; i++)
-            if (args[i] instanceof Integer || args[i] instanceof Long)
-                messageformat.setFormatByArgumentIndex(i, numberformat);
+        for (int i = 0; i < args.length; i++) if (args[i] instanceof Integer || args[i] instanceof Long)
+            messageformat.setFormatByArgumentIndex(i, numberformat);
 
         mc().thePlayer.sendChatMessage(messageformat.format(args));
     }
@@ -291,22 +458,21 @@ public class NEIClientUtils extends NEIServerUtils
     }
 
     public static void toggleRaining() {
-        if (hasSMPCounterPart())
-            NEICPH.sendToggleRain();
-        else
-            sendCommand(getStringSetting("command.rain"), isRaining() ? 0 : 1);
+        if (hasSMPCounterPart()) NEICPH.sendToggleRain();
+        else sendCommand(getStringSetting("command.rain"), isRaining() ? 0 : 1);
     }
 
     public static void healPlayer() {
-        if (hasSMPCounterPart())
-            NEICPH.sendHeal();
-        else
-            sendCommand(getStringSetting("command.heal"), mc().thePlayer.getCommandSenderName());
+        if (hasSMPCounterPart()) NEICPH.sendHeal();
+        else sendCommand(getStringSetting("command.heal"), mc().thePlayer.getCommandSenderName());
+    }
+
+    public static void sendChatItemLink(NBTTagCompound payload) {
+        if (hasSMPCounterPart()) NEICPH.sendChatLink(payload);
     }
 
     public static void toggleMagnetMode() {
-        if (hasSMPCounterPart())
-            NEICPH.sendToggleMagnetMode();
+        if (hasSMPCounterPart()) NEICPH.sendToggleMagnetMode();
     }
 
     public static ArrayList<int[]> concatIntegersToRanges(List<Integer> damages) {
@@ -322,24 +488,38 @@ public class NEIClientUtils extends NEIServerUtils
                 continue;
             }
             if (next + 1 != i) {
-                ranges.add(new int[]{start, next});
+                ranges.add(new int[] { start, next });
                 start = next = i;
                 continue;
             }
             next = i;
         }
-        ranges.add(new int[]{start, next});
+        ranges.add(new int[] { start, next });
         return ranges;
     }
 
     public static ArrayList<int[]> addIntegersToRanges(List<int[]> ranges, List<Integer> damages) {
-        for (int[] range : ranges)
-            for (int integer = range[0]; integer <= range[1]; integer++)
-                damages.add(integer);
+        for (int[] range : ranges) for (int integer = range[0]; integer <= range[1]; integer++) damages.add(integer);
 
         return concatIntegersToRanges(damages);
     }
 
+    public static String cropText(FontRenderer fontRenderer, String text, int containerWidth) {
+        int textWidth = fontRenderer.getStringWidth(text);
+
+        if (textWidth > containerWidth) {
+            int dots = fontRenderer.getStringWidth("...");
+
+            if (containerWidth <= dots) {
+                return "...";
+            }
+
+            return fontRenderer.trimStringToWidth(text, containerWidth - dots) + "...";
+        }
+
+        return text;
+    }
+
     public static boolean safeKeyDown(int keyCode) {
         try {
             return Keyboard.isKeyDown(keyCode);
@@ -350,12 +530,10 @@ public class NEIClientUtils extends NEIServerUtils
 
     public static void setItemQuantity(int i) {
         world.nbt.setInteger("quantity", i);
-        world.saveNBT();
     }
 
     public static GuiContainer getGuiContainer() {
-        if (mc().currentScreen instanceof GuiContainer)
-            return (GuiContainer) mc().currentScreen;
+        if (mc().currentScreen instanceof GuiContainer) return (GuiContainer) mc().currentScreen;
 
         return null;
     }
@@ -364,7 +542,132 @@ public class NEIClientUtils extends NEIServerUtils
         return Keyboard.isKeyDown(Keyboard.KEY_LMENU) || Keyboard.isKeyDown(Keyboard.KEY_RMENU);
     }
 
-    public static void playClickSound() {
-        mc().getSoundHandler().playSound(PositionedSoundRecord.func_147674_a(new ResourceLocation("gui.button.press"), 1.0F));
+    public static String getKeyName(int keyBind, int mouseBind) {
+        return KeyManager.getKeyName(keyBind, mouseBind);
     }
+
+    public static void playClickSound() {
+        mc().getSoundHandler()
+                .playSound(PositionedSoundRecord.func_147674_a(new ResourceLocation("gui.button.press"), 1.0F));
+    }
+
+    public static void reportErrorBuffered(Throwable e, Set<String> buffer, String cause) {
+        StringWriter sw = new StringWriter();
+        e.printStackTrace(new PrintWriter(sw));
+        String stackTrace = cause + sw;
+        if (buffer.contains(stackTrace)) return;
+
+        System.err.println("Error while rendering: " + cause + " (" + e.getMessage() + ")");
+        e.printStackTrace();
+        buffer.add(stackTrace);
+    }
+
+    public static void reportErrorBuffered(Throwable e, Set<String> buffer, ItemStack cause) {
+        if (cause != null) {
+            reportErrorBuffered(e, buffer, cause.toString());
+        } else {
+            reportErrorBuffered(e, buffer, "null");
+        }
+    }
+
+    public static long getScrollMultiplier(ItemStack stack) {
+        final long multiplier = NEIClientConfig.showItemQuantityWidget() ? NEIClientConfig.getItemQuantity() : 0;
+
+        if (multiplier != 0) {
+            return multiplier;
+        }
+
+        return StackInfo.isFluidDisplayItem(stack) ? 144 : stack.getMaxStackSize();
+    }
+
+    public static void drawRect(double left, double top, double width, double height, Color color) {
+        final boolean is2DTexture = GL11.glGetBoolean(GL11.GL_TEXTURE_2D);
+        final boolean isBlend = GL11.glGetBoolean(GL11.GL_BLEND);
+        final Tessellator tessellator = Tessellator.instance;
+
+        GL11.glEnable(GL11.GL_BLEND);
+        GL11.glDisable(GL11.GL_TEXTURE_2D);
+        OpenGlHelper.glBlendFunc(770, 771, 1, 0);
+        GL11.glColor4f(color.getRed() / 255f, color.getGreen() / 255f, color.getBlue() / 255f, color.getAlpha() / 255f);
+        tessellator.startDrawingQuads();
+        tessellator.addVertex(left, top + height, 0.0D);
+        tessellator.addVertex(left + width, top + height, 0.0D);
+        tessellator.addVertex(left + width, top, 0.0D);
+        tessellator.addVertex(left, top, 0.0D);
+        tessellator.draw();
+        GL11.glColor4f(1, 1, 1, 1);
+        if (is2DTexture) GL11.glEnable(GL11.GL_TEXTURE_2D);
+        if (!isBlend) GL11.glDisable(GL11.GL_BLEND);
+    }
+
+    public static void drawNEIOverlayText(String text, Rectangle4i rect, float scale, int color, boolean shadow,
+            Alignment alignment) {
+        final float screenScale = mc().currentScreen.width * 1f / mc().displayWidth;
+        final double smallTextScale = Math
+                .max(screenScale, (Math.max(scale, 1f) * (GuiDraw.fontRenderer.getUnicodeFlag() ? 3F / 4F : 1F / 2F)));
+
+        NEIClientUtils.gl2DRenderContext(() -> {
+            final int width = GuiDraw.fontRenderer.getStringWidth(text);
+            final float partW = rect.w / 2f;
+            final float partH = rect.h / 2f;
+            final double offsetX = Math
+                    .ceil(rect.x + partW + partW * alignment.x - (width / 2f * (alignment.x + 1)) * smallTextScale);
+            final double offsetY = Math.ceil(
+                    rect.y + partH
+                            + partH * alignment.y
+                            - (GuiDraw.fontRenderer.FONT_HEIGHT / 2f * (alignment.y + 1)) * smallTextScale);
+
+            GL11.glTranslated(offsetX, offsetY, 0);
+            GL11.glScaled(smallTextScale, smallTextScale, 1);
+            GuiDraw.fontRenderer.drawString(text, 0, 0, color, shadow);
+            GL11.glScaled(1 / smallTextScale, 1 / smallTextScale, 1);
+            GL11.glTranslated(-1 * offsetX, -1 * offsetY, 0);
+            GL11.glColor4f(1, 1, 1, 1);
+        });
+    }
+
+    public static void drawNEIOverlayText(String text, int x, int y) {
+        drawNEIOverlayText(text, new Rectangle4i(x, y, 16, 16), 0.5f, 0xFDD835, false, Alignment.TopLeft);
+    }
+
+    public static void gl2DRenderContext(Runnable callback) {
+        boolean isLighting = GL11.glGetBoolean(GL11.GL_LIGHTING);
+        boolean isDepthTest = GL11.glGetBoolean(GL11.GL_DEPTH_TEST);
+        boolean isAlphaTest = GL11.glGetBoolean(GL11.GL_ALPHA_TEST);
+        GL11.glDisable(GL11.GL_LIGHTING);
+        GL11.glEnable(GL11.GL_ALPHA_TEST);
+        GL11.glDisable(GL11.GL_DEPTH_TEST);
+
+        callback.run();
+
+        if (isLighting) GL11.glEnable(GL11.GL_LIGHTING);
+        if (isDepthTest) GL11.glEnable(GL11.GL_DEPTH_TEST);
+        if (!isAlphaTest) GL11.glDisable(GL11.GL_ALPHA_TEST);
+    }
+
+    public static void errorOnce(String key, String message, Throwable error) {
+        if (REPORTED.add(key)) {
+            NEIClientConfig.logger.error(message, error);
+        }
+    }
+
+    public static void warnOnce(String key, String message) {
+        if (REPORTED.add(key)) {
+            NEIClientConfig.logger.warn(message);
+        }
+    }
+
+    public static boolean backupFile(File file) {
+        final File backup = new File(file.getAbsolutePath() + ".backup-" + System.currentTimeMillis());
+
+        try {
+            Files.copy(file.toPath(), backup.toPath());
+            NEIClientConfig.logger.info("Backed up file {} to {}", file, backup);
+            return true;
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to backup file {} to {}", file, backup, e);
+            return false;
+        }
+    }
+
 }

src/main/java/codechicken/nei/NEICompatibility.java

@@ -1,5 +1,4 @@
 package codechicken.nei;
 
-public class NEICompatibility
-{    
+public class NEICompatibility {
 }

src/main/java/codechicken/nei/NEIController.java

@@ -1,27 +1,38 @@
 package codechicken.nei;
 
-import codechicken.nei.api.API;
-import codechicken.nei.api.GuiInfo;
-import codechicken.nei.api.IInfiniteItemHandler;
-import codechicken.nei.api.INEIGuiHandler;
-import codechicken.nei.api.ItemInfo;
-import codechicken.nei.guihook.GuiContainerManager;
-import codechicken.nei.guihook.IContainerInputHandler;
-import codechicken.nei.guihook.IContainerSlotClickHandler;
+import static codechicken.lib.gui.GuiDraw.getMousePosition;
+import static codechicken.nei.NEIClientConfig.canCheatItem;
+
+import java.awt.Point;
+
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.client.gui.inventory.GuiContainerCreative;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.inventory.Slot;
 import net.minecraft.inventory.SlotCrafting;
+import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraftforge.client.ClientCommandHandler;
 
-import java.awt.Point;
-import java.util.LinkedList;
+import codechicken.core.CommonUtils;
+import codechicken.lib.gui.GuiDraw;
+import codechicken.nei.api.API;
+import codechicken.nei.api.GuiInfo;
+import codechicken.nei.api.IInfiniteItemHandler;
+import codechicken.nei.api.INEIGuiHandler;
+import codechicken.nei.api.ItemInfo;
+import codechicken.nei.commands.CommandBookmarkAdd;
+import codechicken.nei.commands.CommandRecipeId;
+import codechicken.nei.commands.CommandUntranslator;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.guihook.IContainerInputHandler;
+import codechicken.nei.guihook.IContainerSlotClickHandler;
+import codechicken.nei.util.EmptyContainer;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 
-import static codechicken.lib.gui.GuiDraw.getMousePosition;
+public class NEIController implements IContainerSlotClickHandler, IContainerInputHandler {
 
-public class NEIController implements IContainerSlotClickHandler, IContainerInputHandler
-{
     private static final NEIController instance = new NEIController();
 
     public static GuiContainerManager manager;
@@ -37,6 +48,8 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
     public static void load() {
         GuiContainerManager.addSlotClickHandler(instance);
         GuiContainerManager.addInputHandler(instance);
+
+        if (CommonUtils.isClient()) registerClientCommands();
     }
 
     public static void load(GuiContainer gui) {
@@ -44,57 +57,70 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
         deleteMode = false;
         GuiInfo.clearGuiHandlers();
         fastTransferManager = null;
-        if (!NEIClientConfig.isEnabled())
-            return;
+        if (!NEIClientConfig.isEnabled()) return;
 
         fastTransferManager = new FastTransferManager();
-        if (gui instanceof INEIGuiHandler)
-            API.registerNEIGuiHandler((INEIGuiHandler) gui);
+        if (gui instanceof INEIGuiHandler) API.registerNEIGuiHandler((INEIGuiHandler) gui);
     }
 
     public static boolean isSpreading(GuiContainer gui) {
         return gui.field_147007_t && gui.field_147008_s.size() > 1;
     }
 
+    @SideOnly(Side.CLIENT)
+    public static void registerClientCommands() {
+        ClientCommandHandler.instance.registerCommand(new CommandBookmarkAdd());
+        ClientCommandHandler.instance.registerCommand(new CommandRecipeId());
+        ClientCommandHandler.instance.registerCommand(new CommandUntranslator());
+    }
+
     public static void updateUnlimitedItems(InventoryPlayer inventory) {
-        if (!NEIClientConfig.canPerformAction("item") || !NEIClientConfig.hasSMPCounterPart())
-            return;
+        if (!NEIClientConfig.canPerformAction("item") || !NEIClientConfig.hasSMPCounterPart()) return;
 
-        LinkedList<ItemStack> beforeStacks = new LinkedList<>();
-        for (int i = 0; i < inventory.getSizeInventory(); i++)
-            beforeStacks.add(NEIServerUtils.copyStack(inventory.getStackInSlot(i)));
-
-        for (int i = 0; i < inventory.getSizeInventory(); i++) {
+        int size = inventory.getSizeInventory();
+        for (int i = 0; i < size; i++) {
             ItemStack stack = inventory.getStackInSlot(i);
-            if (stack == null)
-                continue;
+            if (stack == null) continue;
 
-            for (IInfiniteItemHandler handler : ItemInfo.infiniteHandlers)
-                if (handler.canHandleItem(stack) && handler.isItemInfinite(stack))
-                    handler.replenishInfiniteStack(inventory, i);
-        }
+            for (IInfiniteItemHandler handler : ItemInfo.infiniteHandlers) {
+                if (!handler.canHandleItem(stack) || !handler.isItemInfinite(stack)) continue;
 
-        for (int i = 0; i < inventory.getSizeInventory(); i++) {
-            ItemStack newstack = inventory.getStackInSlot(i);
+                long beforeSize = packStackSize(stack.stackSize, stack.getItemDamage());
+                handler.replenishInfiniteStack(inventory, i);
 
-            if (!NEIServerUtils.areStacksIdentical(beforeStacks.get(i), newstack)) {
-                inventory.setInventorySlotContents(i, beforeStacks.get(i));//restore in case of SMP fail
-                NEIClientUtils.setSlotContents(i, newstack, false);//sends via SMP handler ;)
+                ItemStack newstack = inventory.getStackInSlot(i);
+                if (!sameStack(stack, beforeSize, newstack)) {
+                    NEIClientUtils.setSlotContents(i, newstack, false); // sends via SMP handler ;)
+                    stack.stackSize = (int) (beforeSize >> 32);
+                    stack.setItemDamage((int) beforeSize);
+                    inventory.setInventorySlotContents(i, stack); // restore in case of SMP fail
+                }
             }
         }
     }
 
+    private static long packStackSize(int stackSize, int itemDamage) {
+        return ((long) stackSize << 32) | (itemDamage & 0xFFFFFFFFL);
+    }
+
+    private static boolean sameStack(ItemStack before, long beforeSize, ItemStack stack) {
+        if (stack == null) return before == null;
+        return before != null && Item.getIdFromItem(before.getItem()) == Item.getIdFromItem(stack.getItem())
+                && beforeSize == packStackSize(stack.stackSize, stack.getItemDamage());
+    }
+
     public static void processCreativeCycling(InventoryPlayer inventory) {
         if (NEIClientConfig.invCreativeMode() && NEIClientUtils.controlKey()) {
             if (selectedItem != inventory.currentItem) {
-                if (inventory.currentItem == selectedItem + 1 || (inventory.currentItem == 0 && selectedItem == 8))//foward
+                if (inventory.currentItem == selectedItem + 1 || (inventory.currentItem == 0 && selectedItem == 8)) // foward
                 {
                     NEICPH.sendCreativeScroll(1);
                     inventory.currentItem = selectedItem;
-                } else if (inventory.currentItem == selectedItem - 1 || (inventory.currentItem == 8 && selectedItem == 0)) {
-                    NEICPH.sendCreativeScroll(-1);
-                    inventory.currentItem = selectedItem;
-                }
+                } else if (inventory.currentItem == selectedItem - 1
+                        || (inventory.currentItem == 8 && selectedItem == 0)) {
+                            NEICPH.sendCreativeScroll(-1);
+                            inventory.currentItem = selectedItem;
+                        }
             }
         }
 
@@ -103,62 +129,72 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
 
     @Override
     public void beforeSlotClick(GuiContainer gui, int slotIndex, int button, Slot slot, int modifier) {
-        if (!NEIClientConfig.isEnabled())
-            return;
+        if (!NEIClientConfig.isEnabled()) return;
 
         firstheld = NEIClientUtils.getHeldItem();
     }
 
     @Override
-    public boolean handleSlotClick(GuiContainer gui, int slotIndex, int button, Slot slot, int modifier, boolean eventconsumed) {
-        if (eventconsumed ||
-                !NEIClientConfig.isEnabled() ||
-                isSpreading(gui))
-            return eventconsumed;
+    public boolean handleSlotClick(GuiContainer gui, int slotIndex, int button, Slot slot, int modifier,
+            boolean eventconsumed) {
+        if (eventconsumed || !NEIClientConfig.isEnabled() || isSpreading(gui)) return eventconsumed;
 
         if (deleteMode && slotIndex >= 0 && slot != null) {
             if (NEIClientUtils.shiftKey() && button == 0) {
                 ItemStack itemstack1 = slot.getStack();
-                if (itemstack1 != null)
-                    NEIClientUtils.deleteItemsOfType(itemstack1);
+                if (itemstack1 != null) NEIClientUtils.deleteItemsOfType(itemstack1);
 
-            } else if (button == 1)
-                NEIClientUtils.decreaseSlotStack(slot.slotNumber);
-            else
-                NEIClientUtils.deleteSlotStack(slot.slotNumber);
+            } else if (button == 1) NEIClientUtils.decreaseSlotStack(slot.slotNumber);
+            else NEIClientUtils.deleteSlotStack(slot.slotNumber);
             return true;
         }
 
-        if (button == 1 && slot instanceof SlotCrafting)//right click
+        if (button == 1 && modifier != 2 && slot instanceof SlotCrafting) // right click
         {
-            for (int i1 = 0; i1 < 64; i1++)//click this slot 64 times
+            for (int i1 = 0; i1 < 64; i1++) // click this slot 64 times
                 manager.handleSlotClick(slot.slotNumber, button, 0);
             return true;
         }
 
-        if (NEIClientUtils.controlKey()
-                && modifier != 4//Drop key pressed: net.minecraft.client.gui.inventory.GuiContainer.keyTyped
-                && slot != null && slot.getStack() != null
+        if (NEIClientUtils.controlKey() && modifier != 4 // Drop key pressed:
+                                                         // net.minecraft.client.gui.inventory.GuiContainer.keyTyped
+                && slot != null
+                && slot.getStack() != null
                 && slot.isItemValid(slot.getStack())) {
+            if (!canCheatItem(slot.getStack())) return false;
+
             NEIClientUtils.cheatItem(slot.getStack(), button, 1);
             return true;
         }
 
-        if(GuiInfo.hasCustomSlots(gui))
-            return false;
+        if (GuiInfo.hasCustomSlots(gui)) return false;
 
-        if (slotIndex >= 0 && NEIClientUtils.shiftKey() && NEIClientUtils.getHeldItem() != null && !slot.getHasStack()) {
-            ItemStack held = NEIClientUtils.getHeldItem();
-            manager.handleSlotClick(slot.slotNumber, button, 0);
-            if (slot.isItemValid(held) && !ItemInfo.fastTransferExemptions.contains(slot.getClass()))
-                fastTransferManager.performMassTransfer(gui, pickedUpFromSlot, slotIndex, held);
+        if (NEIClientUtils.shiftKey() && button != 2) { // MMB is used by other mods when an itemstack is picked.
+            // fix small mouse movement while clicking causing slotIndex to be -999
+            if (slotIndex == -999) {
+                final Point mouse = GuiDraw.getMousePosition();
+                slot = gui.getSlotAtPosition(mouse.x, mouse.y);
 
-            return true;
-        }
+                if (slot != null) {
+                    slotIndex = slot.slotNumber;
+                }
+            }
 
-        if (slotIndex == -999 && NEIClientUtils.shiftKey() && button == 0) {
-            fastTransferManager.throwAll(gui, pickedUpFromSlot);
-            return true;
+            if (slotIndex >= 0 && NEIClientUtils.getHeldItem() != null && !slot.getHasStack()) {
+                final ItemStack held = NEIClientUtils.getHeldItem();
+                manager.handleSlotClick(slot.slotNumber, button, 0);
+
+                if (slot.isItemValid(held) && !ItemInfo.fastTransferExemptions.contains(slot.getClass())) {
+                    fastTransferManager.performMassTransfer(gui, pickedUpFromSlot, slotIndex, held);
+                }
+
+                return true;
+            }
+
+            if (slotIndex == -999 && button == 0) {
+                fastTransferManager.throwAll(gui, pickedUpFromSlot);
+                return true;
+            }
         }
 
         return false;
@@ -166,16 +202,15 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
 
     @Override
     public void afterSlotClick(GuiContainer gui, int slotIndex, int button, Slot slot, int modifier) {
-        if (!NEIClientConfig.isEnabled())
-            return;
+        if (!NEIClientConfig.isEnabled()) return;
 
         ItemStack nowHeld = NEIClientUtils.getHeldItem();
 
-        if (firstheld != nowHeld)
-            pickedUpFromSlot = slotIndex;
+        if (firstheld != nowHeld) pickedUpFromSlot = slotIndex;
 
         if (NEIClientConfig.canPerformAction("item") && NEIClientConfig.hasSMPCounterPart()) {
-            if (heldStackInfinite != null && slot != null && slot.inventory == NEIClientUtils.mc().thePlayer.inventory) {
+            if (heldStackInfinite != null && slot != null
+                    && slot.inventory == NEIClientUtils.mc().thePlayer.inventory) {
                 ItemStack stack = slot.getStack();
                 if (stack != null) {
                     heldStackInfinite.onPlaceInfinite(stack);
@@ -183,8 +218,7 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
                 NEIClientUtils.setSlotContents(slotIndex, stack, true);
             }
 
-            if (firstheld != nowHeld)
-                heldStackInfinite = null;
+            if (firstheld != nowHeld) heldStackInfinite = null;
 
             if (firstheld != nowHeld && nowHeld != null) {
                 for (IInfiniteItemHandler handler : ItemInfo.infiniteHandlers) {
@@ -201,14 +235,10 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
 
     @Override
     public boolean lastKeyTyped(GuiContainer gui, char keyChar, int keyCode) {
-        if (!NEIClientConfig.isEnabled() ||
-                GuiInfo.hasCustomSlots(gui) ||
-                isSpreading(gui))
-            return false;
+        if (!NEIClientConfig.isEnabled() || GuiInfo.hasCustomSlots(gui) || isSpreading(gui)) return false;
 
         Slot slot = GuiContainerManager.getSlotMouseOver(gui);
-        if (slot == null)
-            return false;
+        if (slot == null) return false;
 
         int slotIndex = slot.slotNumber;
 
@@ -225,19 +255,22 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
 
     @Override
     public boolean mouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
-        if (!NEIClientConfig.isEnabled() || GuiInfo.hasCustomSlots(gui) || !NEIClientConfig.isMouseScrollTransferEnabled())
+        if (!NEIClientConfig.isEnabled() || GuiInfo.hasCustomSlots(gui)
+                || !NEIClientConfig.isMouseScrollTransferEnabled())
             return false;
 
+        // slot in GuiRecipe does not contain actual stack
+        // and scroll should be handled by GuiRecipe, not here
+        if (gui.inventorySlots instanceof EmptyContainer) return false;
+
         Point mousePos = getMousePosition();
         Slot mouseover = manager.window.getSlotAtPosition(mousePos.x, mousePos.y);
         if (mouseover != null && mouseover.getHasStack()) {
-            if(NEIClientConfig.shouldInvertMouseScrollTransfer()) {
+            if (NEIClientConfig.shouldInvertMouseScrollTransfer()) {
                 scrolled = -scrolled;
             }
-            if (scrolled > 0)
-                fastTransferManager.transferItem(manager.window, mouseover.slotNumber);
-            else
-                fastTransferManager.retrieveItem(manager.window, mouseover.slotNumber);
+            if (scrolled > 0) fastTransferManager.transferItem(manager.window, mouseover.slotNumber);
+            else fastTransferManager.retrieveItem(manager.window, mouseover.slotNumber);
             return true;
         }
         return false;
@@ -254,32 +287,26 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
     }
 
     @Override
-    public void onKeyTyped(GuiContainer gui, char keyChar, int keyID) {
-    }
+    public void onKeyTyped(GuiContainer gui, char keyChar, int keyID) {}
 
     @Override
-    public void onMouseClicked(GuiContainer gui, int mousex, int mousey, int button) {
-    }
+    public void onMouseClicked(GuiContainer gui, int mousex, int mousey, int button) {}
 
     @Override
-    public void onMouseDragged(GuiContainer gui, int mousex, int mousey, int button, long heldTime) {
-    }
+    public void onMouseDragged(GuiContainer gui, int mousex, int mousey, int button, long heldTime) {}
 
     @Override
-    public void onMouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
-    }
+    public void onMouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {}
 
     @Override
-    public void onMouseUp(GuiContainer gui, int mousex, int mousey, int button) {
-    }
+    public void onMouseUp(GuiContainer gui, int mousex, int mousey, int button) {}
 
     public static boolean canUseDeleteMode() {
         return !(NEIClientUtils.getGuiContainer() instanceof GuiContainerCreative);
     }
 
     public static void toggleDeleteMode() {
-        if(canUseDeleteMode())
-            deleteMode = !deleteMode;
+        if (canUseDeleteMode()) deleteMode = !deleteMode;
     }
 
     public static boolean getDeleteMode() {

src/main/java/codechicken/nei/NEICreativeGuiHandler.java

@@ -1,22 +1,20 @@
 package codechicken.nei;
 
-import codechicken.nei.api.INEIGuiAdapter;
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.client.gui.inventory.GuiContainerCreative;
 import net.minecraft.creativetab.CreativeTabs;
 
-public class NEICreativeGuiHandler extends INEIGuiAdapter
-{
+import codechicken.nei.api.INEIGuiAdapter;
+
+public class NEICreativeGuiHandler extends INEIGuiAdapter {
+
     @Override
-    public VisiblityData modifyVisiblity(GuiContainer gui, VisiblityData currentVisibility)
-    {
-        if(!(gui instanceof GuiContainerCreative))
-            return currentVisibility;
-        
-        if(((GuiContainerCreative)gui).func_147056_g() != CreativeTabs.tabInventory.getTabIndex())
+    public VisiblityData modifyVisiblity(GuiContainer gui, VisiblityData currentVisibility) {
+        if (!(gui instanceof GuiContainerCreative)) return currentVisibility;
+
+        if (((GuiContainerCreative) gui).func_147056_g() != CreativeTabs.tabInventory.getTabIndex())
             currentVisibility.showItemSection = currentVisibility.enableDeleteMode = false;
 
         return currentVisibility;
     }
-
 }

src/main/java/codechicken/nei/NEIDummySlotHandler.java

@@ -1,21 +1,21 @@
 package codechicken.nei;
 
-import codechicken.lib.inventory.ContainerExtended;
-import codechicken.lib.inventory.SlotDummy;
-import codechicken.nei.api.INEIGuiAdapter;
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.inventory.Slot;
 import net.minecraft.item.ItemStack;
 
-public class NEIDummySlotHandler extends INEIGuiAdapter
-{
+import codechicken.lib.inventory.ContainerExtended;
+import codechicken.lib.inventory.SlotDummy;
+import codechicken.nei.api.INEIGuiAdapter;
+
+public class NEIDummySlotHandler extends INEIGuiAdapter {
+
     @Override
-    public boolean handleDragNDrop(GuiContainer gui, int mousex, int mousey, ItemStack draggedStack, int button)
-    {
+    public boolean handleDragNDrop(GuiContainer gui, int mousex, int mousey, ItemStack draggedStack, int button) {
         Slot slot = gui.getSlotAtPosition(mousex, mousey);
-        if(slot instanceof SlotDummy && slot.isItemValid(draggedStack) && gui.inventorySlots instanceof ContainerExtended)
-        {
-            ((SlotDummy)slot).slotClick(draggedStack, button, NEIClientUtils.shiftKey());
+        if (slot instanceof SlotDummy && slot.isItemValid(draggedStack)
+                && gui.inventorySlots instanceof ContainerExtended) {
+            ((SlotDummy) slot).slotClick(draggedStack, button, NEIClientUtils.shiftKey());
             NEICPH.sendDummySlotSet(slot.slotNumber, slot.getStack());
             return true;
         }

src/main/java/codechicken/nei/NEIModContainer.java

@@ -1,49 +1,62 @@
 package codechicken.nei;
 
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import com.google.common.eventbus.EventBus;
+import com.google.common.eventbus.Subscribe;
+
 import codechicken.core.CommonUtils;
 import codechicken.core.launch.CodeChickenCorePlugin;
 import codechicken.nei.api.IConfigureNEI;
 import codechicken.nei.asm.NEICorePlugin;
 import codechicken.nei.config.IMCHandler;
+import codechicken.nei.guihook.HideousLinkedList;
 import codechicken.nei.recipe.GuiRecipeTab;
-import codechicken.nei.recipe.RecipeCatalysts;
-import com.google.common.eventbus.EventBus;
-import com.google.common.eventbus.Subscribe;
 import cpw.mods.fml.client.FMLFileResourcePack;
 import cpw.mods.fml.client.FMLFolderResourcePack;
 import cpw.mods.fml.common.DummyModContainer;
 import cpw.mods.fml.common.LoadController;
 import cpw.mods.fml.common.Loader;
 import cpw.mods.fml.common.ModMetadata;
+import cpw.mods.fml.common.discovery.ASMDataTable;
 import cpw.mods.fml.common.event.FMLInitializationEvent;
 import cpw.mods.fml.common.event.FMLInterModComms;
+import cpw.mods.fml.common.event.FMLLoadCompleteEvent;
 import cpw.mods.fml.common.event.FMLPostInitializationEvent;
 import cpw.mods.fml.common.event.FMLPreInitializationEvent;
+import cpw.mods.fml.common.event.FMLServerAboutToStartEvent;
 import cpw.mods.fml.common.versioning.ArtifactVersion;
 import cpw.mods.fml.common.versioning.VersionParser;
 import cpw.mods.fml.common.versioning.VersionRange;
-import net.minecraft.util.EnumChatFormatting;
 
-import java.io.File;
-import java.util.*;
+@SuppressWarnings("UnstableApiUsage")
+public class NEIModContainer extends DummyModContainer {
 
-public class NEIModContainer extends DummyModContainer
-{
-    public static LinkedList<IConfigureNEI> plugins = new LinkedList<>();
+    public static final LinkedList<IConfigureNEI> plugins = new HideousLinkedList<>(new CopyOnWriteArrayList<>());
 
     private static boolean gregTech5Loaded;
+    private static boolean gtnhLibLoaded;
+    private static boolean cubicChunksLoaded;
+
+    private static ASMDataTable asmDataTable;
 
     public NEIModContainer() {
         super(getModMetadata());
-        loadMetadata();
     }
 
     private static ModMetadata getModMetadata() {
         final ModMetadata modMetadata = new ModMetadata();
-        modMetadata.name = "GRADLETOKEN_MODNAME";
-        modMetadata.modId = "GRADLETOKEN_MODID";
-        modMetadata.version = "GRADLETOKEN_VERSION";
-        modMetadata.authorList = Arrays.asList( "ChickenBones", "mitchej123" );
+        modMetadata.name = "NotEnoughItems";
+        modMetadata.modId = "NotEnoughItems";
+        modMetadata.version = Tags.VERSION;
+        modMetadata.authorList = Arrays.asList("ChickenBones", "mitchej123", "SLPrime");
         modMetadata.url = "https://github.com/GTNewHorizons/NotEnoughItems";
         modMetadata.description = "Recipe Viewer, Inventory Manager, Item Spawner, Cheats and more; GTNH Version includes many enhancements.";
         return modMetadata;
@@ -53,43 +66,30 @@ public class NEIModContainer extends DummyModContainer
         return gregTech5Loaded;
     }
 
+    public static boolean isGTNHLibLoaded() {
+        return gtnhLibLoaded;
+    }
+
+    public static boolean isCCLoaded() {
+        return cubicChunksLoaded;
+    }
+
     @Override
     public Set<ArtifactVersion> getRequirements() {
         Set<ArtifactVersion> deps = new HashSet<>();
-        deps.add(VersionParser.parseVersionReference("CodeChickenCore@["+CodeChickenCorePlugin.version+",)"));
+        deps.add(VersionParser.parseVersionReference("CodeChickenCore@[" + codechicken.core.asm.Tags.VERSION + ",)"));
         return deps;
     }
 
     @Override
     public List<ArtifactVersion> getDependencies() {
-        return new LinkedList<>(getRequirements());
+        List<ArtifactVersion> deps = new ArrayList<>();
+        deps.add(VersionParser.parseVersionReference("CodeChickenCore@[" + codechicken.core.asm.Tags.VERSION + ",)"));
+        deps.add(VersionParser.parseVersionReference("gtnhlib@[0.9.6,)"));
+        return deps;
     }
 
     private String description;
-    private void loadMetadata() {
-        description = super.getMetadata().description.replace("Supporters:", EnumChatFormatting.AQUA+"Supporters:");
-    }
-
-    @Override
-    public ModMetadata getMetadata() {
-        StringBuilder s_plugins = new StringBuilder();
-        if (plugins.size() == 0) {
-            s_plugins.append(EnumChatFormatting.RED).append("No installed plugins.");
-        } else {
-            s_plugins.append(EnumChatFormatting.GREEN).append("Installed plugins: ");
-            for (int i = 0; i < plugins.size(); i++) {
-                if (i > 0)
-                    s_plugins.append(", ");
-                IConfigureNEI plugin = plugins.get(i);
-                s_plugins.append(plugin.getName()).append(" ").append(plugin.getVersion());
-            }
-            s_plugins.append(".");
-        }
-
-        ModMetadata meta = super.getMetadata();
-        meta.description = description.replace("<plugins>", s_plugins.toString());
-        return meta;
-    }
 
     @Override
     public boolean registerBus(EventBus bus, LoadController controller) {
@@ -100,26 +100,44 @@ public class NEIModContainer extends DummyModContainer
     @Subscribe
     public void preInit(FMLPreInitializationEvent event) {
         gregTech5Loaded = Loader.isModLoaded("gregtech") && !Loader.isModLoaded("gregapi_post");
-        if (CommonUtils.isClient())
-            ClientHandler.preInit();
+        gtnhLibLoaded = Loader.isModLoaded("gtnhlib");
+        cubicChunksLoaded = Loader.isModLoaded("cubicchunks");
+        ServerHandler.preInit();
+        if (CommonUtils.isClient()) ClientHandler.preInit();
+        asmDataTable = event.getAsmData();
     }
 
     @Subscribe
     public void init(FMLInitializationEvent event) {
-        if (CommonUtils.isClient())
+        if (CommonUtils.isClient()) {
             ClientHandler.load();
-
+            IMCForNEI.IMCSender();
+        }
         ServerHandler.load();
     }
+
     @Subscribe
     public void postInit(FMLPostInitializationEvent event) {
         if (CommonUtils.isClient()) {
-            GuiRecipeTab.loadHandlerInfo();
-            RecipeCatalysts.loadCatalystInfo();
             ClientHandler.postInit();
         }
     }
 
+    @Subscribe
+    public void loadComplete(FMLLoadCompleteEvent event) {
+        if (CommonUtils.isClient()) {
+            GuiRecipeTab.loadHandlerInfo();
+            ClientHandler.loadPluginsList();
+            ClientHandler.loadHandlerOrdering();
+            asmDataTable = null;
+        }
+    }
+
+    @Subscribe
+    public void onServerAboutToStart(FMLServerAboutToStartEvent event) {
+        NEIServerConfig.resetFirstLoad();
+    }
+
     @Subscribe
     public void handleIMCMessages(FMLInterModComms.IMCEvent event) {
         IMCHandler.processIMC(event.getMessages());
@@ -139,4 +157,8 @@ public class NEIModContainer extends DummyModContainer
     public Class<?> getCustomResourcePackClass() {
         return getSource().isDirectory() ? FMLFolderResourcePack.class : FMLFileResourcePack.class;
     }
+
+    public static ASMDataTable getAsmDataTable() {
+        return asmDataTable;
+    }
 }

src/main/java/codechicken/nei/NEIPotionGuiHandler.java

@@ -0,0 +1,51 @@
+package codechicken.nei;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.entity.EntityPlayerSP;
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.client.renderer.InventoryEffectRenderer;
+
+import codechicken.nei.api.INEIGuiAdapter;
+
+/**
+ * Inspired by InventoryEffectRendererGuiHandler.java in JEI
+ */
+public class NEIPotionGuiHandler extends INEIGuiAdapter {
+
+    @Override
+    public boolean hideItemPanelSlot(GuiContainer guiContainer, int slotX, int slotY, int slotW, int slotH) {
+        if (!(guiContainer instanceof InventoryEffectRenderer)) {
+            return false;
+        }
+
+        int x = guiContainer.guiLeft - 124;
+        if (slotX + slotW <= x || slotX >= x + 140) {
+            return false;
+        }
+
+        Minecraft minecraft = guiContainer.mc;
+        if (minecraft == null) {
+            return false;
+        }
+        EntityPlayerSP player = minecraft.thePlayer;
+        if (player == null) {
+            return false;
+        }
+        int potionCount = player.getActivePotionEffects().size();
+        if (potionCount == 0 || NEIClientConfig.ignorePotionOverlap()) {
+            return false;
+        }
+        int height = 33;
+        if (potionCount > 5) {
+            height = 132 / (potionCount - 1);
+        }
+        return intersectsPotionEffects(slotY, slotH, guiContainer.guiTop, potionCount, height);
+    }
+
+    static boolean intersectsPotionEffects(int slotY, int slotH, int effectY, int potionCount, int height) {
+        for (int i = 0; i < potionCount; i++, effectY += height) {
+            if (slotY + slotH > effectY && slotY < effectY + 32) return true;
+        }
+        return false;
+    }
+}

src/main/java/codechicken/nei/NEISPH.java

@@ -1,5 +1,22 @@
 package codechicken.nei;
 
+import static codechicken.nei.PacketIDs.C2S;
+import static codechicken.nei.PacketIDs.S2C;
+
+import java.util.LinkedList;
+import java.util.Set;
+
+import net.minecraft.entity.item.EntityItem;
+import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraft.inventory.InventoryBasic;
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.network.play.INetHandlerPlayServer;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.tileentity.TileEntityMobSpawner;
+import net.minecraft.world.World;
+
 import codechicken.core.CommonUtils;
 import codechicken.core.ServerUtils;
 import codechicken.lib.inventory.SlotDummy;
@@ -7,91 +24,96 @@ import codechicken.lib.packet.PacketCustom;
 import codechicken.lib.packet.PacketCustom.IServerPacketHandler;
 import codechicken.lib.vec.BlockCoord;
 import cpw.mods.fml.relauncher.Side;
-import net.minecraft.entity.item.EntityItem;
-import net.minecraft.entity.player.EntityPlayerMP;
-import net.minecraft.inventory.InventoryBasic;
-import net.minecraft.inventory.Slot;
-import net.minecraft.item.ItemStack;
-import net.minecraft.network.play.INetHandlerPlayServer;
-import net.minecraft.tileentity.TileEntity;
-import net.minecraft.tileentity.TileEntityMobSpawner;
-import net.minecraft.world.World;
 
-import java.util.LinkedList;
-import java.util.Set;
+public class NEISPH implements IServerPacketHandler {
 
-public class NEISPH implements IServerPacketHandler
-{
     @Override
     public void handlePacket(PacketCustom packet, EntityPlayerMP sender, INetHandlerPlayServer netHandler) {
-        if (!NEIServerConfig.authenticatePacket(sender, packet))
-            return;
+        if (!NEIServerConfig.authenticatePacket(sender, packet)) return;
 
         switch (packet.getType()) {
-            case 1:
+            case C2S.GIVE_ITEM:
                 handleGiveItem(sender, packet);
                 break;
-            case 4:
+            case C2S.DELETE_ALL_ITEMS:
                 NEIServerUtils.deleteAllItems(sender);
                 break;
-            case 5:
+            case C2S.SET_SLOT:
                 setInventorySlot(sender, packet);
                 break;
-            case 6:
+            case C2S.TOGGLE_MAGNET:
                 NEIServerUtils.toggleMagnetMode(sender);
                 break;
-            case 7:
+            case C2S.SET_TIME:
                 NEIServerUtils.setHourForward(sender.worldObj, packet.readUByte(), true);
                 break;
-            case 8:
+            case C2S.HEAL:
                 NEIServerUtils.healPlayer(sender);
                 break;
-            case 9:
+            case C2S.TOGGLE_RAIN:
                 NEIServerUtils.toggleRaining(sender.worldObj, true);
                 break;
-            case 10:
+            case C2S.REQUEST_LOGIN_INFO:
                 sendLoginState(sender);
                 break;
-            case 11:
+            case C2S.REQUEST_CONTAINER_CONTENTS:
                 sender.sendContainerAndContentsToPlayer(sender.openContainer, sender.openContainer.getInventory());
                 break;
-            case 12:
+            case C2S.CHANGE_PROPERTY:
                 handlePropertyChange(sender, packet);
                 break;
-            case 13:
+            case C2S.SET_GAME_MODE:
                 NEIServerUtils.setGamemode(sender, packet.readUByte());
                 break;
-            case 14:
+            case C2S.CYCLE_CREATIVE_INV:
                 NEIServerUtils.cycleCreativeInv(sender, packet.readInt());
                 break;
-            case 15:
+            case C2S.SEND_MOB_SPAWNER_ID:
                 handleMobSpawnerID(sender.worldObj, packet.readCoord(), packet.readString());
                 break;
-            case 21:
+            case C2S.REQUEST_CONTAINER:
+                handleRequestContainer(sender, packet.readInt());
+                break;
+            case C2S.REQUEST_ENCHANTMENT_GUI:
                 openEnchantmentGui(sender);
                 break;
-            case 22:
+            case C2S.MODIFY_ENCHANTMENT:
                 modifyEnchantment(sender, packet.readUByte(), packet.readUByte(), packet.readBoolean());
                 break;
-            case 23:
+            case C2S.SET_CREATIVE_PLUS_MODE:
                 processCreativeInv(sender, packet.readBoolean());
                 break;
-            case 24:
+            case C2S.REQUEST_POTION_GUI:
                 openPotionGui(sender, packet);
                 break;
-            case 25:
+            case C2S.SET_DUMMY_SLOT:
                 handleDummySlotSet(sender, packet);
                 break;
+            case C2S.SEND_CHAT_ITEM_LINK:
+                handleSendChatItemLink(sender, packet);
+                break;
+            case C2S.SYNC:
+                handleSync(sender, packet.readInt());
+                break;
         }
     }
 
+    private void handleSync(EntityPlayerMP sender, int id) {
+        sender.sendContainerAndContentsToPlayer(sender.openContainer, sender.openContainer.getInventory());
+        new PacketCustom(channel, S2C.SYNC).writeInt(id).sendToPlayer(sender);
+    }
+
+    private void handleSendChatItemLink(EntityPlayerMP sender, PacketCustom packet) {
+        final NBTTagCompound payloadTag = packet.readNBTTagCompound();
+        NEIServerUtils.sendChatItemLink(sender, payloadTag);
+    }
+
     private void handleDummySlotSet(EntityPlayerMP sender, PacketCustom packet) {
         int slotNumber = packet.readShort();
         ItemStack stack = packet.readItemStack(true);
 
         Slot slot = sender.openContainer.getSlot(slotNumber);
-        if (slot instanceof SlotDummy)
-            slot.putStack(stack);
+        if (slot instanceof SlotDummy) slot.putStack(stack);
     }
 
     private void handleMobSpawnerID(World world, BlockCoord coord, String mobtype) {
@@ -103,6 +125,11 @@ public class NEISPH implements IServerPacketHandler
         }
     }
 
+    private void handleRequestContainer(EntityPlayerMP sender, int containerSize) {
+        if (sender.openContainer.getInventory().size() != containerSize) return;
+        sender.sendContainerToPlayer(sender.openContainer);
+    }
+
     private void handlePropertyChange(EntityPlayerMP sender, PacketCustom packet) {
         String name = packet.readString();
         if (NEIServerConfig.canPlayerPerformAction(sender.getCommandSenderName(), name))
@@ -111,15 +138,22 @@ public class NEISPH implements IServerPacketHandler
 
     public static void processCreativeInv(EntityPlayerMP sender, boolean open) {
         if (open) {
-            ServerUtils.openSMPContainer(sender, new ContainerCreativeInv(sender, new ExtendedCreativeInv(NEIServerConfig.forPlayer(sender.getCommandSenderName()), Side.SERVER)), (player, windowId) -> {
-                PacketCustom packet = new PacketCustom(channel, 23);
-                packet.writeBoolean(true);
-                packet.writeByte(windowId);
-                packet.sendToPlayer(player);
-            });
+            ServerUtils.openSMPContainer(
+                    sender,
+                    new ContainerCreativeInv(
+                            sender,
+                            new ExtendedCreativeInv(
+                                    NEIServerConfig.forPlayer(sender.getCommandSenderName()),
+                                    Side.SERVER)),
+                    (player, windowId) -> {
+                        PacketCustom packet = new PacketCustom(channel, S2C.SET_CREATIVE_PLUS_MODE);
+                        packet.writeBoolean(true);
+                        packet.writeByte(windowId);
+                        packet.sendToPlayer(player);
+                    });
         } else {
             sender.closeContainer();
-            PacketCustom packet = new PacketCustom(channel, 23);
+            PacketCustom packet = new PacketCustom(channel, S2C.SET_CREATIVE_PLUS_MODE);
             packet.writeBoolean(false);
             packet.sendToPlayer(sender);
         }
@@ -135,7 +169,8 @@ public class NEISPH implements IServerPacketHandler
         ItemStack item = packet.readItemStack();
 
         ItemStack old = NEIServerUtils.getSlotContents(player, slot, container);
-        boolean deleting = item == null || old != null && NEIServerUtils.areStacksSameType(item, old) && item.stackSize < old.stackSize;
+        boolean deleting = item == null
+                || old != null && NEIServerUtils.areStacksSameType(item, old) && item.stackSize < old.stackSize;
         if (NEIServerConfig.canPlayerPerformAction(player.getCommandSenderName(), deleting ? "delete" : "item"))
             NEIServerUtils.setSlotContents(player, slot, item, container);
     }
@@ -150,36 +185,33 @@ public class NEISPH implements IServerPacketHandler
     }
 
     private void openEnchantmentGui(EntityPlayerMP player) {
-        ServerUtils.openSMPContainer(player, new ContainerEnchantmentModifier(player.inventory, player.worldObj, 0, 0, 0), (player1, windowId) -> {
-            PacketCustom packet = new PacketCustom(channel, 21);
-            packet.writeByte(windowId);
-            packet.sendToPlayer(player1);
-        });
+        ServerUtils.openSMPContainer(
+                player,
+                new ContainerEnchantmentModifier(player.inventory, player.worldObj, 0, 0, 0),
+                (player1, windowId) -> {
+                    PacketCustom packet = new PacketCustom(channel, S2C.OPEN_ENCHANTMENT_GUI);
+                    packet.writeByte(windowId);
+                    packet.sendToPlayer(player1);
+                });
     }
 
     private void openPotionGui(EntityPlayerMP player, PacketCustom packet) {
         InventoryBasic b = new InventoryBasic("potionStore", true, 9);
-        for (int i = 0; i < b.getSizeInventory(); i++)
-            b.setInventorySlotContents(i, packet.readItemStack());
+        for (int i = 0; i < b.getSizeInventory(); i++) b.setInventorySlotContents(i, packet.readItemStack());
         ServerUtils.openSMPContainer(player, new ContainerPotionCreator(player.inventory, b), (player1, windowId) -> {
-            PacketCustom packet1 = new PacketCustom(channel, 24);
+            PacketCustom packet1 = new PacketCustom(channel, S2C.OPEN_POTION_GUI);
             packet1.writeByte(windowId);
             packet1.sendToPlayer(player1);
         });
     }
 
     public static void sendActionDisabled(int dim, String name, boolean disable) {
-        new PacketCustom(channel, 11)
-                .writeString(name)
-                .writeBoolean(disable)
+        new PacketCustom(channel, S2C.SEND_ACTION_DISABLED).writeString(name).writeBoolean(disable)
                 .sendToDimension(dim);
     }
 
     public static void sendActionEnabled(EntityPlayerMP player, String name, boolean enable) {
-        new PacketCustom(channel, 12)
-                .writeString(name)
-                .writeBoolean(enable)
-                .sendToPlayer(player);
+        new PacketCustom(channel, S2C.SEND_ACTION_ENABLED).writeString(name).writeBoolean(enable).sendToPlayer(player);
     }
 
     private void sendLoginState(EntityPlayerMP player) {
@@ -190,41 +222,34 @@ public class NEISPH implements IServerPacketHandler
         PlayerSave playerSave = NEIServerConfig.forPlayer(player.getCommandSenderName());
 
         for (String name : NEIActions.nameActionMap.keySet()) {
-            if (NEIServerConfig.canPlayerPerformAction(player.getCommandSenderName(), name))
-                actions.add(name);
-            if (NEIServerConfig.isActionDisabled(player.dimension, name))
-                disabled.add(name);
-            if (playerSave.isActionEnabled(name))
-                enabled.add(name);
+            if (NEIServerConfig.canPlayerPerformAction(player.getCommandSenderName(), name)) actions.add(name);
+            if (NEIServerConfig.isActionDisabled(player.dimension, name)) disabled.add(name);
+            if (playerSave.isActionEnabled(name)) enabled.add(name);
         }
         for (ItemStackMap.Entry<Set<String>> entry : NEIServerConfig.bannedItems.entries())
             if (!NEIServerConfig.isPlayerInList(player.getCommandSenderName(), entry.value, true))
                 bannedItems.add(entry.key);
 
-        PacketCustom packet = new PacketCustom(channel, 10);
+        PacketCustom packet = new PacketCustom(channel, S2C.SEND_LOGIN_STATE);
 
         packet.writeByte(actions.size());
-        for (String s : actions)
-            packet.writeString(s);
+        for (String s : actions) packet.writeString(s);
 
         packet.writeByte(disabled.size());
-        for (String s : disabled)
-            packet.writeString(s);
+        for (String s : disabled) packet.writeString(s);
 
         packet.writeByte(enabled.size());
-        for (String s : enabled)
-            packet.writeString(s);
+        for (String s : enabled) packet.writeString(s);
 
         packet.writeInt(bannedItems.size());
-        for (ItemStack stack : bannedItems)
-            packet.writeItemStack(stack);
+        for (ItemStack stack : bannedItems) packet.writeItemStack(stack);
 
         packet.sendToPlayer(player);
     }
 
     public static void sendHasServerSideTo(EntityPlayerMP player) {
         NEIServerConfig.logger.debug("Sending serverside check to: " + player.getCommandSenderName());
-        PacketCustom packet = new PacketCustom(channel, 1);
+        PacketCustom packet = new PacketCustom(channel, S2C.SEND_SERVER_SIDE_CHECK);
         packet.writeByte(NEIActions.protocol);
         packet.writeString(CommonUtils.getWorldName(player.worldObj));
 
@@ -232,7 +257,7 @@ public class NEISPH implements IServerPacketHandler
     }
 
     public static void sendAddMagneticItemTo(EntityPlayerMP player, EntityItem item) {
-        PacketCustom packet = new PacketCustom(channel, 13);
+        PacketCustom packet = new PacketCustom(channel, S2C.SEND_MAGNETIC_ITEM);
         packet.writeInt(item.getEntityId());
 
         packet.sendToPlayer(player);

src/main/java/codechicken/nei/NEIServerConfig.java

@@ -1,23 +1,5 @@
 package codechicken.nei;
 
-import codechicken.core.CommonUtils;
-import codechicken.core.ServerUtils;
-import codechicken.lib.config.ConfigFile;
-import codechicken.lib.inventory.InventoryUtils;
-import codechicken.lib.packet.PacketCustom;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.entity.player.EntityPlayerMP;
-import net.minecraft.init.Blocks;
-import net.minecraft.item.ItemStack;
-import net.minecraft.nbt.JsonToNBT;
-import net.minecraft.nbt.NBTTagCompound;
-import net.minecraft.server.MinecraftServer;
-import net.minecraft.world.World;
-import net.minecraftforge.common.DimensionManager;
-import org.apache.commons.io.IOUtils;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
-
 import java.io.File;
 import java.io.FileReader;
 import java.io.PrintWriter;
@@ -30,26 +12,62 @@ import java.util.Iterator;
 import java.util.Map;
 import java.util.Set;
 
-public class NEIServerConfig
-{
-    private static MinecraftServer server;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraft.init.Blocks;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.JsonToNBT;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.world.World;
+import net.minecraftforge.common.DimensionManager;
+import net.minecraftforge.permission.PermissionLevel;
+import net.minecraftforge.permission.PermissionManager;
 
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.IOUtils;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import codechicken.core.CommonUtils;
+import codechicken.core.ServerUtils;
+import codechicken.lib.config.ConfigFile;
+import codechicken.lib.inventory.InventoryUtils;
+import codechicken.lib.packet.PacketCustom;
+
+public class NEIServerConfig {
+
+    private static boolean firstLoad;
     public static Logger logger = LogManager.getLogger("NotEnoughItems");
     public static File saveDir;
     public static ConfigFile serverConfig;
     public static Map<Integer, NBTTagCompound> dimTags = new HashMap<>();
     public static HashMap<String, PlayerSave> playerSaves = new HashMap<>();
     public static ItemStackMap<Set<String>> bannedItems = new ItemStackMap<>();
+    private static boolean doesPermAPIExist = false;
+
+    public static void resetFirstLoad() {
+        firstLoad = true;
+    }
 
     public static void load(World world) {
-        if (MinecraftServer.getServer() != server) {
+        if (firstLoad) {
+            firstLoad = false;
             logger.debug("Loading NEI Server");
-            server = MinecraftServer.getServer();
             saveDir = new File(DimensionManager.getCurrentSaveRootDirectory(), "NEI");
 
             dimTags.clear();
             loadConfig();
             loadBannedItems();
+
+            try {
+                Class.forName("net.minecraftforge.permission.PermissionManager");
+                doesPermAPIExist = true;
+
+                NEIActions.baseActions().forEach(
+                        action -> {
+                            PermissionManager.registerPermission("nei.permissions." + action, PermissionLevel.OP);
+                        });
+            } catch (ClassNotFoundException ignored) {}
         }
         loadWorld(world);
     }
@@ -62,7 +80,7 @@ public class NEIServerConfig
         try {
             File file = new File(getSaveDir(world), "world.dat");
             NBTTagCompound tag = NEIServerUtils.readNBT(file);
-            if(tag == null) tag = new NBTTagCompound();
+            if (tag == null) tag = new NBTTagCompound();
             dimTags.put(CommonUtils.getDimension(world), tag);
         } catch (Exception e) {
             throw new RuntimeException(e);
@@ -75,7 +93,8 @@ public class NEIServerConfig
 
         serverConfig.setNewLineMode(1);
         serverConfig.getTag("permissions").useBraces();
-        serverConfig.getTag("permissions").setComment("List of players who can use these features.\nEg. time=CodeChicken, Friend1");
+        serverConfig.getTag("permissions")
+                .setComment("List of players who can use these features.\nEg. time=CodeChicken, Friend1");
 
         setDefaultFeature("time");
         setDefaultFeature("rain");
@@ -89,17 +108,16 @@ public class NEIServerConfig
         setDefaultFeature("save-state");
         setDefaultFeature("item");
         setDefaultFeature("delete");
+        setDefaultFeature("autocraft", "ALL");
         setDefaultFeature("notify-item", "CONSOLE, OP");
     }
 
     private static void setDefaultFeature(String featurename, String... names) {
-        if (names.length == 0)
-            names = new String[]{"OP"};
+        if (names.length == 0) names = new String[] { "OP" };
 
         StringBuilder list = new StringBuilder();
         for (int i = 0; i < names.length; i++) {
-            if (i >= 1)
-                list.append(", ");
+            if (i >= 1) list.append(", ");
             list.append(names[i]);
         }
         serverConfig.getTag("permissions." + featurename).setDefaultValue(list.toString());
@@ -107,7 +125,11 @@ public class NEIServerConfig
 
     private static void saveWorld(int dim) {
         try {
-            File file = new File(getSaveDir(DimensionManager.getWorld(dim)), "world.dat");
+            final File saveDir = getSaveDir(DimensionManager.getWorld(dim));
+            if (!saveDir.isDirectory()) {
+                FileUtils.forceMkdir(saveDir);
+            }
+            File file = new File(saveDir, "world.dat");
             NEIServerUtils.writeNBT(dimTags.get(dim), file);
         } catch (Exception e) {
             throw new RuntimeException(e);
@@ -115,18 +137,21 @@ public class NEIServerConfig
     }
 
     public static boolean canPlayerPerformAction(String playername, String name) {
-        return isPlayerInList(playername, getPlayerList("permissions." + NEIActions.base(name)), true);
+        String node = "permissions." + NEIActions.base(name);
+        boolean hasPerm = doesPermAPIExist
+                ? PermissionManager.checkPermission(ServerUtils.getPlayer(playername), "nei." + node)
+                : false;
+
+        return hasPerm || isPlayerInList(playername, getPlayerList(node), true);
     }
 
     public static boolean isPlayerInList(String playername, Set<String> list, boolean allowCards) {
-        if (playername.equals("CONSOLE"))
-            return list.contains(playername);
+        if (playername.equals("CONSOLE")) return list.contains(playername);
 
         playername = playername.toLowerCase();
 
         if (allowCards) {
-            if (list.contains("ALL"))
-                return true;
+            if (list.contains("ALL")) return true;
             if ((ServerUtils.isPlayerOP(playername) || ServerUtils.isPlayerOwner(playername)) && list.contains("OP"))
                 return true;
         }
@@ -173,8 +198,7 @@ public class NEIServerConfig
         StringBuilder sb = new StringBuilder();
         int i = 0;
         for (Iterator<String> iterator = list.iterator(); iterator.hasNext(); i++) {
-            if (i != 0)
-                sb.append(", ");
+            if (i != 0) sb.append(", ");
 
             sb.append(iterator.next());
         }
@@ -185,7 +209,7 @@ public class NEIServerConfig
     private static void loadBannedItems() {
         bannedItems.clear();
         File file = new File(saveDir, "banneditems.cfg");
-        if(!file.exists()) {
+        if (!file.exists()) {
             bannedItems.put(new ItemStack(Blocks.command_block), new HashSet<>(Collections.singletonList("NONE")));
             saveBannedItems();
             return;
@@ -193,22 +217,20 @@ public class NEIServerConfig
         try {
             FileReader r = new FileReader(file);
             int line = 0;
-            for(String s : IOUtils.readLines(r)) {
-                if(s.charAt(0) == '#' || s.trim().length() == 0)
-                    continue;
+            for (String s : IOUtils.readLines(r)) {
+                if (s.charAt(0) == '#' || s.trim().isEmpty()) continue;
                 int delim = s.lastIndexOf('=');
-                if(delim < 0) {
-                    logger.error("line "+line+": Missing =");
+                if (delim < 0) {
+                    logger.error("line " + line + ": Missing =");
                     continue;
                 }
                 try {
                     NBTTagCompound key = (NBTTagCompound) JsonToNBT.func_150315_a(s.substring(0, delim));
                     Set<String> values = new HashSet<>();
-                    for(String s2 : s.substring(delim+1).split(","))
-                        values.add(s2.trim());
+                    for (String s2 : s.substring(delim + 1).split(",")) values.add(s2.trim());
                     bannedItems.put(InventoryUtils.loadPersistant(key), values);
                 } catch (Exception e) {
-                    logger.error("line "+line+": "+e.getMessage());
+                    logger.error("line " + line + ": " + e.getMessage());
                 }
             }
             r.close();
@@ -220,22 +242,22 @@ public class NEIServerConfig
     public static void saveBannedItems() {
         File file = new File(saveDir, "banneditems.cfg");
         try {
-            if(!file.exists())
-                file.createNewFile();
+            if (!file.exists()) file.createNewFile();
 
             PrintWriter p = new PrintWriter(file);
-            p.println("#Saved in this format for external editing. The format isn't that hard to figure out. If you think you're up to it, modify it here!");
+            p.println(
+                    "#Saved in this format for external editing. The format isn't that hard to figure out. If you think you're up to it, modify it here!");
 
             for (ItemStackMap.Entry<Set<String>> entry : bannedItems.entries()) {
                 NBTTagCompound key = InventoryUtils.savePersistant(entry.key, new NBTTagCompound());
                 key.removeTag("Count");
-                if(key.getByte("Damage") == 0) key.removeTag("Damage");
+                if (key.getByte("Damage") == 0) key.removeTag("Damage");
 
                 p.print(key.toString());
                 p.print("=[");
                 int i = 0;
                 for (String s : entry.value) {
-                    if(i++ != 0) p.print(", ");
+                    if (i++ != 0) p.print(", ");
                     p.print(s);
                 }
                 p.println("]");
@@ -252,14 +274,15 @@ public class NEIServerConfig
 
     public static void loadPlayer(EntityPlayer player) {
         logger.debug("Loading Player: " + player.getGameProfile().getName());
-        playerSaves.put(player.getCommandSenderName(), new PlayerSave(player.getCommandSenderName(), new File(saveDir, "players")));
+        playerSaves.put(
+                player.getCommandSenderName(),
+                new PlayerSave(player.getCommandSenderName(), new File(saveDir, "players")));
     }
 
     public static void unloadPlayer(EntityPlayer player) {
         logger.debug("Unloading Player: " + player.getCommandSenderName());
         PlayerSave playerSave = playerSaves.remove(player.getCommandSenderName());
-        if (playerSave != null)
-            playerSave.save();
+        if (playerSave != null) playerSave.save();
     }
 
     public static boolean authenticatePacket(EntityPlayerMP sender, PacketCustom packet) {

src/main/java/codechicken/nei/NEIServerUtils.java

@@ -1,18 +1,21 @@
 package codechicken.nei;
 
-import codechicken.core.CommonUtils;
-import codechicken.core.ServerUtils;
-import codechicken.lib.inventory.InventoryRange;
-import codechicken.lib.inventory.InventoryUtils;
-import codechicken.lib.packet.PacketCustom;
-import codechicken.nei.util.NBTHelper;
-import cpw.mods.fml.common.FMLLog;
-import cpw.mods.fml.common.registry.GameRegistry;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.AbstractList;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+import java.util.zip.ZipException;
+
 import net.minecraft.command.ICommandSender;
 import net.minecraft.enchantment.Enchantment;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.EntityPlayerMP;
 import net.minecraft.entity.player.InventoryPlayer;
+import net.minecraft.event.ClickEvent;
 import net.minecraft.inventory.Slot;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
@@ -23,39 +26,56 @@ import net.minecraft.nbt.NBTException;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.util.ChatComponentText;
 import net.minecraft.util.ChatComponentTranslation;
 import net.minecraft.util.EnumChatFormatting;
 import net.minecraft.util.IChatComponent;
 import net.minecraft.world.World;
-import net.minecraft.world.WorldServer;
 import net.minecraft.world.WorldSettings.GameType;
+import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.oredict.OreDictionary;
+
 import org.apache.logging.log4j.Level;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.io.StringWriter;
-import java.util.AbstractList;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Set;
-import java.util.zip.ZipException;
+import codechicken.core.CommonUtils;
+import codechicken.core.ServerUtils;
+import codechicken.lib.inventory.InventoryRange;
+import codechicken.lib.inventory.InventoryUtils;
+import codechicken.lib.packet.PacketCustom;
+import codechicken.nei.PacketIDs.S2C;
+import codechicken.nei.item.ItemFluidDisplay;
+import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.NBTHelper;
+import cpw.mods.fml.common.FMLLog;
+import cpw.mods.fml.common.registry.GameRegistry;
+import cpw.mods.fml.relauncher.ReflectionHelper;
+
+public class NEIServerUtils {
+
+    private static class GTMetaBaseItemHolder {
+
+        private static final Class<?> gtMetaBaseItem = loadMetaBaseItem();
+
+        private static Class<?> loadMetaBaseItem() {
+            try {
+                final ClassLoader loader = NEIServerUtils.class.getClassLoader();
+                return ReflectionHelper
+                        .getClass(loader, "gregtech.api.items.MetaBaseItem", "gregtech.api.items.GT_MetaBase_Item");
+            } catch (Exception ignored) {
+                return null;
+            }
+        }
+    }
 
-public class NEIServerUtils
-{
     public static boolean isRaining(World world) {
         return world.getWorldInfo().isRaining();
     }
 
     public static void toggleRaining(World world, boolean notify) {
         boolean raining = !world.isRaining();
-        if (!raining)//turn off
-            ((WorldServer) world).provider.resetRainAndThunder();
-        else
-            world.getWorldInfo().setRaining(!isRaining(world));
+        if (!raining) // turn off
+            world.provider.resetRainAndThunder();
+        else world.getWorldInfo().setRaining(!isRaining(world));
 
         if (notify)
             ServerUtils.sendChatToAll(new ChatComponentTranslation("nei.chat.rain." + (raining ? "on" : "off")));
@@ -67,6 +87,48 @@ public class NEIServerUtils
         player.extinguish();
     }
 
+    public static void sendChatItemLink(EntityPlayerMP sender, NBTTagCompound payload) {
+        if (payload == null) {
+            sender.addChatMessage(new ChatComponentText("Invalid bookmark payload"));
+            return;
+        }
+
+        final String linkType = payload.getString("linkType");
+        final String payloadId = UUID.randomUUID().toString().substring(0, 8);
+        final PacketCustom packet = new PacketCustom(NEISPH.channel, S2C.CACHE_BOOKMARK_DATA).writeString(payloadId)
+                .writeNBTTagCompound((NBTTagCompound) payload.copy());
+
+        for (EntityPlayer player : ServerUtils.getPlayers()) {
+            if (player instanceof EntityPlayerMP playerMP) {
+                packet.sendToPlayer(playerMP);
+            }
+        }
+
+        try {
+            final IChatComponent clickable;
+
+            if (payload.hasKey("item")) {
+                clickable = StackInfo.loadFromNBT(payload.getCompoundTag("item")).func_151000_E();
+            } else {
+                clickable = new ChatComponentText("[")
+                        .appendSibling(new ChatComponentTranslation("nei.chat.item_link." + linkType + ".text"))
+                        .appendText("]");
+            }
+
+            if (clickable == null) {
+                throw new Exception("Invalid ItemStack NBT");
+            }
+
+            clickable.getChatStyle()
+                    .setChatClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/nei_bookmark " + payloadId));
+            ServerUtils.sendChatToAll(
+                    new ChatComponentTranslation("nei.chat.item_link.text", sender.getDisplayName(), clickable));
+        } catch (Exception e) {
+            sender.addChatMessage(new ChatComponentText(e.toString()));
+        }
+
+    }
+
     public static long getTime(World world) {
         return world.getWorldInfo().getWorldTime();
     }
@@ -76,27 +138,19 @@ public class NEIServerUtils
     }
 
     public static void setSlotContents(EntityPlayer player, int slot, ItemStack item, boolean containerInv) {
-        if (slot == -999)
-            player.inventory.setItemStack(item);
-        else if (containerInv)
-            player.openContainer.putStackInSlot(slot, item);
-        else
-            player.inventory.setInventorySlotContents(slot, item);
+        if (slot == -999) player.inventory.setItemStack(item);
+        else if (containerInv) player.openContainer.putStackInSlot(slot, item);
+        else player.inventory.setInventorySlotContents(slot, item);
     }
 
     public static ItemStack getSlotContents(EntityPlayer player, int slot, boolean containerInv) {
-        if (slot == -999)
-            return player.inventory.getItemStack();
-        else if (containerInv)
-            return player.openContainer.getSlot(slot).getStack();
-        else
-            return player.inventory.getStackInSlot(slot);
+        if (slot == -999) return player.inventory.getItemStack();
+        else if (containerInv) return player.openContainer.getSlot(slot).getStack();
+        else return player.inventory.getStackInSlot(slot);
     }
 
-    @SuppressWarnings("unchecked")
     public static void deleteAllItems(EntityPlayerMP player) {
-        for (Slot slot : (List<Slot>) player.openContainer.inventorySlots)
-            slot.putStack(null);
+        for (Slot slot : player.openContainer.inventorySlots) slot.putStack(null);
 
         player.sendContainerAndContentsToPlayer(player.openContainer, player.openContainer.getInventory());
     }
@@ -116,8 +170,7 @@ public class NEIServerUtils
         while (NEIServerConfig.isActionDisabled(dim, NEIActions.timeZones[newhour / 6]))
             newhour = ((newhour / 6 + 1) % 4) * 6;
 
-        if (newhour != hour)
-            setHourForward(world, newhour, false);
+        if (newhour != hour) setHourForward(world, newhour, false);
     }
 
     public static boolean canItemFitInInventory(EntityPlayer player, ItemStack itemstack) {
@@ -125,17 +178,18 @@ public class NEIServerUtils
     }
 
     public static void sendNotice(ICommandSender sender, IChatComponent msg, String permission) {
-        ChatComponentTranslation notice = new ChatComponentTranslation("chat.type.admin", sender.getCommandSenderName(), msg.createCopy());
+        ChatComponentTranslation notice = new ChatComponentTranslation(
+                "chat.type.admin",
+                sender.getCommandSenderName(),
+                msg.createCopy());
         notice.getChatStyle().setColor(EnumChatFormatting.GRAY).setItalic(true);
 
         if (NEIServerConfig.canPlayerPerformAction("CONSOLE", permission))
             MinecraftServer.getServer().addChatMessage(notice);
 
-        for (EntityPlayer p : ServerUtils.getPlayers())
-            if(p == sender)
-                p.addChatComponentMessage(msg);
-            else if (NEIServerConfig.canPlayerPerformAction(p.getCommandSenderName(), permission))
-                p.addChatComponentMessage(notice);
+        for (EntityPlayer p : ServerUtils.getPlayers()) if (p == sender) p.addChatComponentMessage(msg);
+        else if (NEIServerConfig.canPlayerPerformAction(p.getCommandSenderName(), permission))
+            p.addChatComponentMessage(notice);
     }
 
     /**
@@ -144,54 +198,72 @@ public class NEIServerUtils
      * @return whether the two items are the same in terms of damage and itemID.
      */
     public static boolean areStacksSameType(ItemStack stack1, ItemStack stack2) {
-        return stack1 != null && stack2 != null &&
-                (stack1.getItem() == stack2.getItem() &&
-                (!stack2.getHasSubtypes() || stack2.getItemDamage() == stack1.getItemDamage()) &&
-                ItemStack.areItemStackTagsEqual(stack2, stack1));
+        return stack1 != null && stack2 != null
+                && (stack1.getItem() == stack2.getItem()
+                        && (!stack2.getHasSubtypes() || stack2.getItemDamage() == stack1.getItemDamage())
+                        && ItemStack.areItemStackTagsEqual(stack2, stack1));
     }
 
     /**
      * NBT-friendly version of {@link #areStacksSameType(ItemStack, ItemStack)}
+     *
      * @param stack1 The {@link ItemStack} being compared.
      * @param stack2 The {@link ItemStack} to compare to.
      * @return whether the two items are the same in terms of itemID, damage and NBT.
      */
     public static boolean areStacksSameTypeWithNBT(ItemStack stack1, ItemStack stack2) {
-        return stack1 != null && stack2 != null &&
-                stack1.getItem() == stack2.getItem() &&
-                (!stack2.getHasSubtypes() || stack2.getItemDamage() == stack1.getItemDamage()) &&
-                NBTHelper.matchTag(stack1.getTagCompound(), stack2.getTagCompound());
+        return stack1 != null && stack2 != null
+                && stack1.getItem() == stack2.getItem()
+                && (stack2.isItemStackDamageable() || stack2.getItemDamage() == stack1.getItemDamage())
+                && NBTHelper.matchTag(stack1.getTagCompound(), stack2.getTagCompound());
     }
 
     /**
-     * {@link ItemStack}s with damage -1 are wildcards allowing all damages. Eg all colours of wool are allowed to create Beds.
+     * {@link ItemStack}s with damage -1 are wildcards allowing all damages. Eg all colours of wool are allowed to
+     * create Beds.
      *
      * @param stack1 The {@link ItemStack} being compared.
      * @param stack2 The {@link ItemStack} to compare to.
      * @return whether the two items are the same from the perspective of a crafting inventory.
      */
     public static boolean areStacksSameTypeCrafting(ItemStack stack1, ItemStack stack2) {
-        return stack1 != null && stack2 != null &&
-                stack1.getItem() == stack2.getItem() &&
-                (stack1.getItemDamage() == stack2.getItemDamage() || stack1.getItemDamage() == OreDictionary.WILDCARD_VALUE || stack2.getItemDamage() == OreDictionary.WILDCARD_VALUE || stack1.getItem().isDamageable());
+        return stack1 != null && stack2 != null
+                && stack1.getItem() == stack2.getItem()
+                && (stack1.getItemDamage() == stack2.getItemDamage()
+                        || stack1.getItemDamage() == OreDictionary.WILDCARD_VALUE
+                        || stack2.getItemDamage() == OreDictionary.WILDCARD_VALUE
+                        || stack1.getItem().isDamageable());
     }
 
     /**
      * NBT-friendly version of {@link #areStacksSameTypeCrafting(ItemStack, ItemStack)}
+     *
      * @param stack1 The {@link ItemStack} being compared.
      * @param stack2 The {@link ItemStack} to compare to.
      * @return whether the two items are the same from the perspective of a crafting inventory.
      */
     public static boolean areStacksSameTypeCraftingWithNBT(ItemStack stack1, ItemStack stack2) {
-        return stack1 != null && stack2 != null &&
-                stack1.getItem() == stack2.getItem() &&
-                (
-                    stack1.getItemDamage() == stack2.getItemDamage() ||
-                    stack1.getItemDamage() == OreDictionary.WILDCARD_VALUE ||
-                    stack2.getItemDamage() == OreDictionary.WILDCARD_VALUE ||
-                    stack1.getItem().isDamageable()
-                ) &&
-                NBTHelper.matchTag(stack1.getTagCompound(), stack2.getTagCompound());
+
+        if (NEIServerUtils.areStacksSameTypeCrafting(stack2, stack1)) {
+            if (NBTHelper.matchTag(stack1.getTagCompound(), stack2.getTagCompound())) return true;
+            if (isItemTool(stack1)
+                    && (stack1.stackTagCompound == null || stack1.stackTagCompound.hasKey("GT.ToolStats"))
+                    && (stack2.stackTagCompound == null || stack2.stackTagCompound.hasKey("GT.ToolStats")))
+                return true;
+            return stack1.getMaxStackSize() == 1 && stack2.getMaxStackSize() == 1
+                    && (stack1.stackTagCompound == null ^ stack2.stackTagCompound == null);
+        }
+
+        return false;
+    }
+
+    /**
+     * GT Items don't have any NBT set for the recipe, so if either of the stacks has a NULL nbt, and the other doesn't,
+     * pretend they stack
+     */
+    public static boolean isItemTool(ItemStack stack) {
+        return GTMetaBaseItemHolder.gtMetaBaseItem != null
+                && GTMetaBaseItemHolder.gtMetaBaseItem.isInstance(stack.getItem());
     }
 
     /**
@@ -202,9 +274,10 @@ public class NEIServerUtils
      * @return The ordering of stack1 relative to stack2.
      */
     public static int compareStacks(ItemStack stack1, ItemStack stack2) {
-        if (stack1 == stack2) return 0;//catches both null
-        if (stack1 == null || stack2 == null) return stack1 == null ? -1 : 1;//null stack goes first
-        if (stack1.getItem() != stack2.getItem()) return Item.getIdFromItem(stack1.getItem()) - Item.getIdFromItem(stack2.getItem());
+        if (stack1 == stack2) return 0; // catches both null
+        if (stack1 == null || stack2 == null) return stack1 == null ? -1 : 1; // null stack goes first
+        if (stack1.getItem() != stack2.getItem())
+            return Item.getIdFromItem(stack1.getItem()) - Item.getIdFromItem(stack2.getItem());
         if (stack1.stackSize != stack2.stackSize) return stack1.stackSize - stack2.stackSize;
         return stack1.getItemDamage() - stack2.getItemDamage();
     }
@@ -220,33 +293,37 @@ public class NEIServerUtils
 
     public static void givePlayerItem(EntityPlayerMP player, ItemStack stack, boolean infinite, boolean doGive) {
         if (stack.getItem() == null) {
-            player.addChatComponentMessage(setColour(new ChatComponentTranslation("nei.chat.give.noitem"), EnumChatFormatting.WHITE));
+            player.addChatComponentMessage(
+                    setColour(new ChatComponentTranslation("nei.chat.give.noitem"), EnumChatFormatting.WHITE));
             return;
         }
 
         int given = stack.stackSize;
-        if(doGive) {
-            if (infinite)
-                player.inventory.addItemStackToInventory(stack);
-            else
-                given -= InventoryUtils.insertItem(player.inventory, stack, false);
+        if (doGive) {
+            if (infinite) player.inventory.addItemStackToInventory(stack);
+            else given -= InventoryUtils.insertItem(player.inventory, stack, false);
         }
 
-        sendNotice(player, new ChatComponentTranslation("commands.give.success", stack.func_151000_E(), infinite ? "\u221E" : Integer.toString(given), player.getCommandSenderName()), "notify-item");
+        sendNotice(
+                player,
+                new ChatComponentTranslation(
+                        "commands.give.success",
+                        stack.func_151000_E(),
+                        infinite ? "\u221E" : Integer.toString(given),
+                        player.getCommandSenderName()),
+                "notify-item");
         player.openContainer.detectAndSendChanges();
     }
 
     public static ItemStack copyStack(ItemStack itemstack, int i) {
-        if (itemstack == null)
-            return null;
+        if (itemstack == null) return null;
 
         itemstack.stackSize += i;
         return itemstack.splitStack(i);
     }
 
     public static ItemStack copyStack(ItemStack itemstack) {
-        if (itemstack == null)
-            return null;
+        if (itemstack == null) return null;
 
         return copyStack(itemstack, itemstack.stackSize);
     }
@@ -257,14 +334,10 @@ public class NEIServerUtils
     }
 
     public static int getCreativeMode(EntityPlayerMP player) {
-        if (NEIServerConfig.forPlayer(player.getCommandSenderName()).isActionEnabled("creative+"))
-            return 2;
-        else if (player.theItemInWorldManager.isCreative())
-            return 1;
-        else if (player.theItemInWorldManager.getGameType().isAdventure())
-            return 3;
-        else
-            return 0;
+        if (NEIServerConfig.forPlayer(player.getCommandSenderName()).isActionEnabled("creative+")) return 2;
+        else if (player.theItemInWorldManager.isCreative()) return 1;
+        else if (player.theItemInWorldManager.getGameType().isAdventure()) return 3;
+        else return 0;
     }
 
     public static GameType getGameType(int mode) {
@@ -281,53 +354,51 @@ public class NEIServerUtils
     }
 
     public static void setGamemode(EntityPlayerMP player, int mode) {
-        if (mode < 0 || mode >= NEIActions.gameModes.length ||
-                NEIActions.nameActionMap.containsKey(NEIActions.gameModes[mode]) &&
-                        !NEIServerConfig.canPlayerPerformAction(player.getCommandSenderName(), NEIActions.gameModes[mode]))
+        if (mode < 0 || mode >= NEIActions.gameModes.length
+                || NEIActions.nameActionMap.containsKey(NEIActions.gameModes[mode]) && !NEIServerConfig
+                        .canPlayerPerformAction(player.getCommandSenderName(), NEIActions.gameModes[mode]))
             return;
 
-        //creative+
+        // creative+
         NEIServerConfig.forPlayer(player.getCommandSenderName()).enableAction("creative+", mode == 2);
-        if(mode == 2 && !(player.openContainer instanceof ContainerCreativeInv))//open the container immediately for the client
+        if (mode == 2 && !(player.openContainer instanceof ContainerCreativeInv)) // open the container immediately for
+                                                                                  // the client
             NEISPH.processCreativeInv(player, true);
 
-        //change it on the server
+        // change it on the server
         player.theItemInWorldManager.setGameType(getGameType(mode));
 
-        //tell the client to change it
-        new PacketCustom(NEISPH.channel, 14).writeByte(mode).sendToPlayer(player);
+        // tell the client to change it
+        new PacketCustom(NEISPH.channel, S2C.SEND_GAME_MODE).writeByte(mode).sendToPlayer(player);
         player.addChatMessage(new ChatComponentTranslation("nei.chat.gamemode." + mode));
     }
 
     public static void cycleCreativeInv(EntityPlayerMP player, int steps) {
         InventoryPlayer inventory = player.inventory;
 
-        //top down [row][col]
+        // top down [row][col]
         ItemStack[][] slots = new ItemStack[10][9];
         PlayerSave playerSave = NEIServerConfig.forPlayer(player.getCommandSenderName());
 
-        //get
+        // get
         System.arraycopy(inventory.mainInventory, 0, slots[9], 0, 9);
 
         for (int row = 0; row < 3; row++)
             System.arraycopy(inventory.mainInventory, (row + 1) * 9, slots[row + 6], 0, 9);
 
-        for (int row = 0; row < 6; row++)
-            System.arraycopy(playerSave.creativeInv, row * 9, slots[row], 0, 9);
+        for (int row = 0; row < 6; row++) System.arraycopy(playerSave.creativeInv, row * 9, slots[row], 0, 9);
 
         ItemStack[][] newslots = new ItemStack[10][];
 
-        //put back
-        for (int row = 0; row < 10; row++)
-            newslots[(row + steps + 10) % 10] = slots[row];
+        // put back
+        for (int row = 0; row < 10; row++) newslots[(row + steps + 10) % 10] = slots[row];
 
         System.arraycopy(newslots[9], 0, inventory.mainInventory, 0, 9);
 
         for (int row = 0; row < 3; row++)
             System.arraycopy(newslots[row + 6], 0, inventory.mainInventory, (row + 1) * 9, 9);
 
-        for (int row = 0; row < 6; row++)
-            System.arraycopy(newslots[row], 0, playerSave.creativeInv, row * 9, 9);
+        for (int row = 0; row < 6; row++) System.arraycopy(newslots[row], 0, playerSave.creativeInv, row * 9, 9);
 
         playerSave.setDirty();
     }
@@ -336,95 +407,105 @@ public class NEIServerUtils
         ArrayList<int[]> arraylist = new ArrayList<>();
         if (itemstack != null) {
             NBTTagList nbttaglist = itemstack.getEnchantmentTagList();
-            if (nbttaglist != null)
-                for (int i = 0; i < nbttaglist.tagCount(); i++) {
-                    NBTTagCompound tag = nbttaglist.getCompoundTagAt(i);
-                    arraylist.add(new int[]{tag.getShort("id"), tag.getShort("lvl")});
-                }
+            if (nbttaglist != null) for (int i = 0; i < nbttaglist.tagCount(); i++) {
+                NBTTagCompound tag = nbttaglist.getCompoundTagAt(i);
+                arraylist.add(new int[] { tag.getShort("id"), tag.getShort("lvl") });
+            }
         }
         return arraylist;
     }
 
     public static boolean stackHasEnchantment(ItemStack itemstack, int e) {
         List<int[]> allenchantments = getEnchantments(itemstack);
-        for (int[] ai : allenchantments)
-            if (ai[0] == e)
-                return true;
+        for (int[] ai : allenchantments) if (ai[0] == e) return true;
 
         return false;
     }
 
     public static int getEnchantmentLevel(ItemStack itemstack, int e) {
         List<int[]> allenchantments = getEnchantments(itemstack);
-        for (int[] ai : allenchantments)
-            if (ai[0] == e)
-                return ai[1];
+        for (int[] ai : allenchantments) if (ai[0] == e) return ai[1];
 
         return -1;
     }
 
     public static boolean doesEnchantmentConflict(List<int[]> enchantments, Enchantment e) {
-        for (int[] ai : enchantments)
-            if (!e.canApplyTogether(Enchantment.enchantmentsList[ai[0]]))
-                return true;
+        for (int[] ai : enchantments) if (!e.canApplyTogether(Enchantment.enchantmentsList[ai[0]])) return true;
 
         return false;
     }
 
     public static RuntimeException throwCME(String msg) {
-        if (CommonUtils.isClient())
-            return ClientHandler.throwCME(msg);
+        if (CommonUtils.isClient()) return ClientHandler.throwCME(msg);
 
         throw new RuntimeException(msg);
     }
 
-    @SuppressWarnings("unchecked")
     public static ItemStack[] extractRecipeItems(Object obj) {
-        if (obj instanceof ItemStack)
-            return new ItemStack[]{(ItemStack) obj};
-        if (obj instanceof ItemStack[])
-            return (ItemStack[]) obj;
-        if (obj instanceof List)
-            return ((List<ItemStack>) obj).toArray(new ItemStack[0]);
 
-        throw new ClassCastException(obj+" not an ItemStack, ItemStack[] or List<ItemStack?");
+        if (obj instanceof ItemStack item) {
+            return new ItemStack[] { item };
+        }
+
+        if (obj instanceof ItemStack[]arr) {
+            return arr;
+        }
+
+        if (obj instanceof FluidStack fluid) {
+            return new ItemStack[] { ItemFluidDisplay.createStack(fluid) };
+        }
+
+        if (obj instanceof FluidStack[]arr) {
+            final ItemStack[] items = new ItemStack[arr.length];
+
+            for (int i = 0; i < items.length; i++) {
+                items[i] = ItemFluidDisplay.createStack(arr[i]);
+            }
+
+            return items;
+        }
+
+        if (obj instanceof List list) {
+            final ItemStack[] items = new ItemStack[list.size()];
+
+            for (int i = 0; i < items.length; i++) {
+                items[i] = extractRecipeItem(list.get(i));
+            }
+
+            return items;
+        }
+
+        throw new ClassCastException(
+                obj + " not an ItemStack, ItemStack[], FluidStack, FluidStack[] or a List of them");
+    }
+
+    private static ItemStack extractRecipeItem(Object obj) {
+        if (obj == null) return null;
+        if (obj instanceof ItemStack item) return item;
+        if (obj instanceof FluidStack fluid) return ItemFluidDisplay.createStack(fluid);
+        throw new ClassCastException(obj + " not an ItemStack or FluidStack");
     }
 
     public static List<Integer> getRange(final int start, final int end) {
-        return new AbstractList<Integer>()
-        {
+        return new AbstractList<>() {
+
             @Override
             public Integer get(int index) {
-                return start+index;
+                return start + index;
             }
 
             @Override
             public int size() {
-                return end-start;
+                return end - start;
             }
         };
     }
 
     public static StringBuilder fixTrailingCommaList(StringBuilder sb) {
-        if(sb.charAt(sb.length()-1) == ',')
-            sb.deleteCharAt(sb.length()-1);
+        if (sb.charAt(sb.length() - 1) == ',') sb.deleteCharAt(sb.length() - 1);
         return sb;
     }
 
-    public static void logOnce(Throwable t, Set<String> stackTraces, String message) {
-        logOnce(t, stackTraces, message, "");
-    }
-
-    public static void logOnce(Throwable t, Set<String> stackTraces, String message, String identifier) {
-        StringWriter sw = new StringWriter();
-        t.printStackTrace(new PrintWriter(sw));
-        String stackTrace = identifier + sw.toString();
-        if (!stackTraces.contains(stackTrace)) {
-            NEIServerConfig.logger.error(message, t);
-            stackTraces.add(stackTrace);
-        }
-    }
-
     public static ItemStack getModdedItem(String itemId, String nbtString) {
         int meta = -1;
         ItemStack itemStack;
@@ -461,7 +542,8 @@ public class NEIServerUtils
                     }
                     itemStack.setTagCompound((NBTTagCompound) nbttag);
                 } catch (NBTException e) {
-                    FMLLog.getLogger().log(Level.WARN, "Encountered an exception parsing ItemStack NBT string {}", nbtString, e);
+                    FMLLog.getLogger()
+                            .log(Level.WARN, "Encountered an exception parsing ItemStack NBT string {}", nbtString, e);
                     return null;
                 }
             }
@@ -470,16 +552,14 @@ public class NEIServerUtils
     }
 
     public static NBTTagCompound readNBT(File file) throws IOException {
-        if(!file.exists()) return null;
+        if (!file.exists()) return null;
         FileInputStream in = new FileInputStream(file);
         NBTTagCompound tag;
         try {
             tag = CompressedStreamTools.readCompressed(in);
-        } catch(ZipException e) {
-            if(e.getMessage().equals("Not in GZIP format"))
-                tag = CompressedStreamTools.read(file);
-            else
-                throw e;
+        } catch (ZipException e) {
+            if (e.getMessage().equals("Not in GZIP format")) tag = CompressedStreamTools.read(file);
+            else throw e;
         }
         in.close();
         return tag;

src/main/java/codechicken/nei/OffsetPositioner.java

@@ -1,28 +1,25 @@
 package codechicken.nei;
 
-import codechicken.nei.api.IStackPositioner;
-
 import java.util.ArrayList;
 
-public class OffsetPositioner implements IStackPositioner
-{
-    public OffsetPositioner(int x, int y)
-    {
+import codechicken.nei.api.IStackPositioner;
+
+public class OffsetPositioner implements IStackPositioner {
+
+    public OffsetPositioner(int x, int y) {
         offsetx = x;
         offsety = y;
     }
-    
+
     @Override
-    public ArrayList<PositionedStack> positionStacks(ArrayList<PositionedStack> ai)
-    {
-        for(PositionedStack stack : ai)
-        {
-            stack.relx+=offsetx;
-            stack.rely+=offsety;
+    public ArrayList<PositionedStack> positionStacks(ArrayList<PositionedStack> ai) {
+        for (PositionedStack stack : ai) {
+            stack.relx += offsetx;
+            stack.rely += offsety;
         }
         return ai;
     }
-    
+
     public int offsetx;
     public int offsety;
 }

src/main/java/codechicken/nei/PacketIDs.java

@@ -0,0 +1,44 @@
+package codechicken.nei;
+
+public final class PacketIDs {
+
+    public static final class C2S {
+
+        public static final int GIVE_ITEM = 1;
+        public static final int DELETE_ALL_ITEMS = 4;
+        public static final int SET_SLOT = 5;
+        public static final int TOGGLE_MAGNET = 6;
+        public static final int SET_TIME = 7;
+        public static final int HEAL = 8;
+        public static final int TOGGLE_RAIN = 9;
+        public static final int REQUEST_LOGIN_INFO = 10;
+        public static final int REQUEST_CONTAINER_CONTENTS = 11;
+        public static final int CHANGE_PROPERTY = 12;
+        public static final int SET_GAME_MODE = 13;
+        public static final int CYCLE_CREATIVE_INV = 14;
+        public static final int SEND_MOB_SPAWNER_ID = 15;
+        public static final int REQUEST_CONTAINER = 16;
+        public static final int REQUEST_ENCHANTMENT_GUI = 21;
+        public static final int MODIFY_ENCHANTMENT = 22;
+        public static final int SET_CREATIVE_PLUS_MODE = 23;
+        public static final int REQUEST_POTION_GUI = 24;
+        public static final int SET_DUMMY_SLOT = 25;
+        public static final int SEND_CHAT_ITEM_LINK = 26;
+        public static final int SYNC = 27;
+    }
+
+    public static final class S2C {
+
+        public static final int SEND_SERVER_SIDE_CHECK = 1;
+        public static final int SEND_LOGIN_STATE = 10;
+        public static final int SEND_ACTION_DISABLED = 11;
+        public static final int SEND_ACTION_ENABLED = 12;
+        public static final int SEND_MAGNETIC_ITEM = 13;
+        public static final int SEND_GAME_MODE = 14;
+        public static final int OPEN_ENCHANTMENT_GUI = 21;
+        public static final int SET_CREATIVE_PLUS_MODE = 23;
+        public static final int OPEN_POTION_GUI = 24;
+        public static final int CACHE_BOOKMARK_DATA = 25;
+        public static final int SYNC = 26;
+    }
+}

src/main/java/codechicken/nei/PanelWidget.java

@@ -0,0 +1,362 @@
+package codechicken.nei;
+
+import java.awt.Point;
+import java.util.ArrayList;
+
+import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.item.ItemStack;
+
+import codechicken.lib.gui.GuiDraw;
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.ItemsGrid.ItemsGridSlot;
+import codechicken.nei.api.GuiInfo;
+import codechicken.nei.api.INEIGuiHandler;
+import codechicken.nei.api.ShortcutInputHandler;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.recipe.GuiRecipe;
+
+public abstract class PanelWidget<T extends ItemsGrid<? extends ItemsGridSlot, ? extends ItemsGrid.MouseContext>>
+        extends Widget {
+
+    protected static final int PADDING = 2;
+
+    public ItemStack draggedStack;
+    public int mouseDownSlot = -1;
+
+    public Button pagePrev;
+    public Button pageNext;
+    public Label pageLabel;
+
+    protected T grid;
+
+    private int headerPaddingLeft;
+    private int headerPaddingRight;
+
+    public ArrayList<ItemStack> getItems() {
+        return this.grid.getItems();
+    }
+
+    public T getGrid() {
+        return this.grid;
+    }
+
+    public void init() {
+        pageLabel = new Label("0/0", true);
+
+        pagePrev = new Button("<") {
+
+            public boolean onButtonPress(boolean rightclick) {
+
+                if (rightclick) {
+                    grid.setPage(0);
+                } else {
+                    grid.shiftPage(-1);
+                }
+
+                return true;
+            }
+
+            @Override
+            public void draw(int mousex, int mousey) {
+                this.state = grid.getNumPages() <= 1 ? 2 : 0;
+                super.draw(mousex, mousey);
+            }
+        };
+        pageNext = new Button(">") {
+
+            public boolean onButtonPress(boolean rightclick) {
+
+                if (rightclick) {
+                    grid.setPage(grid.getNumPages() - 1);
+                } else {
+                    grid.shiftPage(1);
+                }
+
+                return true;
+            }
+
+            @Override
+            public void draw(int mousex, int mousey) {
+                this.state = grid.getNumPages() <= 1 ? 2 : 0;
+                super.draw(mousex, mousey);
+            }
+        };
+    }
+
+    public abstract String getLabelText();
+
+    public abstract Rectangle4i calculateBounds(GuiContainer gui);
+
+    protected static int snapDownToMultiple(int value, int multiple) {
+        return (value / multiple) * multiple;
+    }
+
+    public void resize(GuiContainer gui) {
+        final Rectangle4i bounds = calculateBounds(gui);
+
+        x = bounds.x;
+        y = bounds.y;
+        w = bounds.w;
+        h = bounds.h;
+
+        final int header = resizeHeader(gui);
+        final int footer = resizeFooter(gui);
+
+        this.grid.setGridSize(x, y + header, w, h - header - footer);
+        this.grid.refresh(gui);
+    }
+
+    protected int resizeHeader(GuiContainer gui) {
+        final int BUTTON_SIZE = 16;
+
+        if (GridOverlapScanner.isScanFrame()) {
+            updateHeaderPadding(gui);
+        }
+
+        final int paddingLeft = this.headerPaddingLeft;
+        final int paddingRight = this.headerPaddingRight;
+
+        if (paddingLeft + paddingRight >= this.w) {
+            return 0;
+        }
+
+        pagePrev.w = pageNext.w = BUTTON_SIZE;
+        pagePrev.h = pageNext.h = BUTTON_SIZE;
+        pagePrev.y = pageNext.y = y;
+
+        pagePrev.x = this.x + paddingLeft;
+        pageNext.x = this.x + this.w - pageNext.w - paddingRight;
+
+        pageLabel.x = this.x + paddingLeft + (this.w - paddingLeft - paddingRight) / 2;
+        pageLabel.y = this.y + 5;
+        pageLabel.text = getLabelText();
+
+        return BUTTON_SIZE + 2;
+    }
+
+    private void updateHeaderPadding(GuiContainer gui) {
+        final INEIGuiHandler[] handlers = GuiInfo.getGuiHandlersSnapshot();
+        final Rectangle4i slot = new Rectangle4i(this.x, this.y, ItemsGrid.SLOT_SIZE, ItemsGrid.SLOT_SIZE);
+        this.headerPaddingLeft = 0;
+        this.headerPaddingRight = 0;
+
+        while (this.headerPaddingLeft < this.w && GuiInfo.hideItemPanelSlot(gui, slot, handlers)) {
+            this.headerPaddingLeft += ItemsGrid.SLOT_SIZE;
+            slot.x += ItemsGrid.SLOT_SIZE;
+        }
+
+        slot.x = this.x + this.w - ItemsGrid.SLOT_SIZE;
+
+        while (this.headerPaddingRight < this.w && GuiInfo.hideItemPanelSlot(gui, slot, handlers)) {
+            this.headerPaddingRight += ItemsGrid.SLOT_SIZE;
+            slot.x -= ItemsGrid.SLOT_SIZE;
+        }
+    }
+
+    protected abstract int resizeFooter(GuiContainer gui);
+
+    public void setVisible() {
+        if (this.grid.getPerPage() > 0 && !this.grid.isEmpty()) {
+            LayoutManager.addWidget(pagePrev);
+            LayoutManager.addWidget(pageNext);
+            LayoutManager.addWidget(pageLabel);
+        }
+    }
+
+    @Override
+    public void update() {
+        this.grid.update();
+    }
+
+    @Override
+    public void draw(int mousex, int mousey) {
+        this.grid.draw(mousex, mousey);
+    }
+
+    @Override
+    public void postDraw(int mousex, int mousey) {
+        if (draggedStack != null) {
+            GuiContainerManager.drawItems.zLevel += 100;
+            GuiContainerManager.drawItem(mousex - 8, mousey - 8, draggedStack);
+            GuiContainerManager.drawItems.zLevel -= 100;
+        }
+    }
+
+    @Override
+    public void mouseDragged(int mousex, int mousey, int button, long heldTime) {
+        if (this.grid.getSlotBySlotIndex(mouseDownSlot) == null) {
+            mouseDownSlot = -1;
+        }
+
+        if (mouseDownSlot >= 0 && draggedStack == null
+                && NEIClientUtils.getHeldItem() == null
+                && NEIClientConfig.hasSMPCounterPart()) {
+            ItemsGridSlot mouseOverSlot = this.grid.getSlotMouseOver(mousex, mousey);
+
+            if (mouseOverSlot == null || mouseOverSlot.slotIndex != mouseDownSlot || heldTime > 500) {
+                draggedStack = getDraggedStackWithQuantity(this.grid.getSlotBySlotIndex(mouseDownSlot).getItemStack());
+                mouseDownSlot = -1;
+            }
+        }
+    }
+
+    protected abstract ItemStack getDraggedStackWithQuantity(ItemStack itemStack);
+
+    @Override
+    public boolean handleClick(int mousex, int mousey, int button) {
+        if (handleClickExt(mousex, mousey, button)) return true;
+
+        ItemsGridSlot hoverSlot = this.grid.getSlotMouseOver(mousex, mousey);
+        if (hoverSlot != null) {
+
+            if (button == 2) {
+                draggedStack = getDraggedStackWithQuantity(hoverSlot.getItemStack());
+            } else {
+                mouseDownSlot = hoverSlot.slotIndex;
+            }
+
+            return true;
+        }
+
+        return false;
+    }
+
+    @Override
+    public boolean handleClickExt(int mouseX, int mouseY, int button) {
+
+        if (ItemPanels.itemPanel.draggedStack != null && ItemPanels.bookmarkPanel.contains(mouseX, mouseY)) {
+            ItemPanels.bookmarkPanel.addItem(ItemPanels.itemPanel.draggedStack);
+            ItemPanels.itemPanel.draggedStack = null;
+            return true;
+        }
+
+        if (ItemPanels.itemPanel.draggedStack != null) {
+            return ItemPanels.itemPanel.handleDraggedClick(mouseX, mouseY, button);
+        }
+
+        if (ItemPanels.bookmarkPanel.draggedStack != null) {
+            return ItemPanels.bookmarkPanel.handleDraggedClick(mouseX, mouseY, button);
+        }
+
+        if (NEIClientUtils.getHeldItem() != null) {
+            final ItemStack draggedStack = NEIClientUtils.getHeldItem().copy();
+            return handleGUIContainerClick(draggedStack, mouseX, mouseY, button);
+        }
+
+        return false;
+    }
+
+    protected boolean handleDraggedClick(int mouseX, int mouseY, int button) {
+        if (draggedStack == null) {
+            return false;
+        }
+
+        if (handleGUIContainerClick(draggedStack, mouseX, mouseY, button)) {
+
+            if (draggedStack.stackSize == 0) {
+                draggedStack = null;
+            }
+
+            return true;
+        }
+
+        final GuiContainer gui = NEIClientUtils.getGuiContainer();
+        if (mouseX < gui.guiLeft || mouseY < gui.guiTop
+                || mouseX >= gui.guiLeft + gui.xSize
+                || mouseY >= gui.guiTop + gui.ySize) {
+            draggedStack = null;
+        }
+
+        return true;
+    }
+
+    protected boolean handleGUIContainerClick(final ItemStack draggedStack, int mouseX, int mouseY, int button) {
+        final GuiContainer gui = NEIClientUtils.getGuiContainer();
+        boolean handled = false;
+
+        try {
+            GuiInfo.readLock.lock();
+            for (INEIGuiHandler handler : GuiInfo.guiHandlers) {
+                if (handler.handleDragNDrop(gui, mouseX, mouseY, draggedStack, button)) {
+                    handled = true;
+                    break;
+                }
+            }
+        } finally {
+            GuiInfo.readLock.unlock();
+        }
+
+        return handled;
+    }
+
+    @Override
+    public void mouseUp(int mousex, int mousey, int button) {
+        final ItemsGridSlot hoverSlot = this.grid.getSlotMouseOver(mousex, mousey);
+
+        if (hoverSlot != null && hoverSlot.slotIndex == mouseDownSlot && draggedStack == null) {
+
+            if (NEIController.manager.window instanceof GuiRecipe || NEIClientUtils.shiftKey()
+                    || !NEIClientConfig.canCheatItem(hoverSlot.getItemStack())) {
+                ShortcutInputHandler.handleMouseClick(hoverSlot.getItemStack());
+            } else {
+                NEIClientUtils.cheatItem(getDraggedStackWithQuantity(hoverSlot.getItemStack()), button, -1);
+            }
+
+        }
+
+        mouseDownSlot = -1;
+    }
+
+    @Override
+    public boolean onMouseWheel(int i, int mousex, int mousey) {
+        if (!contains(mousex, mousey)) return false;
+
+        this.grid.shiftPage(-i);
+        return true;
+    }
+
+    @Override
+    public boolean onHotkeyPressed() {
+        final Point mouse = GuiDraw.getMousePosition();
+        if (!contains(mouse.x, mouse.y)) return false;
+
+        if (KeyManager.isKeyDown("gui.next")) {
+            this.grid.shiftPage(1);
+            return true;
+        }
+
+        if (KeyManager.isKeyDown("gui.prev")) {
+            this.grid.shiftPage(-1);
+            return true;
+        }
+
+        return false;
+    }
+
+    @Override
+    public ItemStack getStackMouseOver(int mousex, int mousey) {
+        final ItemsGridSlot slot = this.grid.getSlotMouseOver(mousex, mousey);
+        return slot == null ? null : slot.getItemStack();
+    }
+
+    public ItemStack getStackMouseOverWithQuantity(int mousex, int mousey) {
+        final ItemStack hoverSlot = getStackMouseOver(mousex, mousey);
+        return hoverSlot != null ? getDraggedStackWithQuantity(hoverSlot) : null;
+    }
+
+    abstract ItemsGridSlot getSlotMouseOver(int mousex, int mousey);
+
+    public int getPage() {
+        return this.grid.getPage();
+    }
+
+    public int getNumPages() {
+        return this.grid.getNumPages();
+    }
+
+    @Override
+    public boolean contains(int px, int py) {
+        return this.grid.contains(px, py);
+    }
+
+}

src/main/java/codechicken/nei/PlayerSave.java

@@ -1,16 +1,17 @@
 package codechicken.nei;
 
-import codechicken.core.ServerUtils;
-import codechicken.lib.inventory.InventoryUtils;
+import java.io.File;
+
 import net.minecraft.entity.player.EntityPlayerMP;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
 
-import java.io.File;
+import codechicken.core.ServerUtils;
+import codechicken.lib.inventory.InventoryUtils;
+
+public class PlayerSave {
 
-public class PlayerSave
-{
     public String username;
 
     private File saveFile;
@@ -27,20 +28,17 @@ public class PlayerSave
         wasOp = ServerUtils.isPlayerOP(playername);
 
         saveFile = new File(saveLocation, username + ".dat");
-        if (!saveFile.getParentFile().exists())
-            saveFile.getParentFile().mkdirs();
+        if (!saveFile.getParentFile().exists()) saveFile.getParentFile().mkdirs();
         load();
     }
 
     private void load() {
         nbt = new NBTTagCompound();
         try {
-            if (!saveFile.exists())
-                saveFile.createNewFile();
-            if (saveFile.length() > 0)
-                nbt = NEIServerUtils.readNBT(saveFile);
+            if (!saveFile.exists()) saveFile.createNewFile();
+            if (saveFile.length() > 0) nbt = NEIServerUtils.readNBT(saveFile);
         } catch (Exception e) {
-            NEIClientConfig.logger.error("Error loading player save: "+username, e);
+            NEIClientConfig.logger.error("Error loading player save: " + username, e);
         }
 
         loadCreativeInv();
@@ -49,22 +47,19 @@ public class PlayerSave
     private void loadCreativeInv() {
         creativeInv = new ItemStack[54];
         NBTTagList itemList = nbt.getTagList("creativeitems", 10);
-        if (itemList != null)
-            InventoryUtils.readItemStacksFromTag(creativeInv, itemList);
+        if (itemList != null) InventoryUtils.readItemStacksFromTag(creativeInv, itemList);
     }
 
     public void save() {
-        if (!isDirty)
-            return;
+        if (!isDirty) return;
 
-        if (creativeInvDirty)
-            saveCreativeInv();
+        if (creativeInvDirty) saveCreativeInv();
 
         try {
             NEIServerUtils.writeNBT(nbt, saveFile);
             isDirty = false;
         } catch (Exception e) {
-            NEIClientConfig.logger.error("Error saving player: "+username, e);
+            NEIClientConfig.logger.error("Error saving player: " + username, e);
         }
     }
 
@@ -97,8 +92,7 @@ public class PlayerSave
 
     private NBTTagCompound getEnabledActions() {
         NBTTagCompound tag = nbt.getCompoundTag("enabledActions");
-        if (!nbt.hasKey("enabledActions"))
-            nbt.setTag("enabledActions", tag);
+        if (!nbt.hasKey("enabledActions")) nbt.setTag("enabledActions", tag);
         return tag;
     }
 

src/main/java/codechicken/nei/PluginLoader.java

@@ -0,0 +1,66 @@
+package codechicken.nei;
+
+import java.util.Collection;
+import java.util.concurrent.ForkJoinPool;
+import java.util.concurrent.ForkJoinWorkerThread;
+
+import org.apache.logging.log4j.Logger;
+
+import codechicken.nei.api.IConfigureNEI;
+
+final class PluginLoader {
+
+    private PluginLoader() {}
+
+    static void load(Collection<Class<?>> plugins, boolean parallel, Collection<IConfigureNEI> loadedPlugins,
+            Logger logger) {
+        if (parallel && canSetContextClassLoader()) {
+            // Common pool workers use the system loader, which cannot see FML-only classes (old Log4j then throws
+            // while logging a plugin's stack frames), and under a SecurityManager they forbid changing it.
+            final ClassLoader classLoader = IConfigureNEI.class.getClassLoader();
+            final ForkJoinPool pool = new ForkJoinPool(Runtime.getRuntime().availableProcessors(), owner -> {
+                final ForkJoinWorkerThread worker = ForkJoinPool.defaultForkJoinWorkerThreadFactory.newThread(owner);
+                worker.setContextClassLoader(classLoader);
+                return worker;
+            }, null, false);
+
+            try {
+                pool.submit(() -> plugins.parallelStream().forEach(clazz -> load(clazz, loadedPlugins, logger))).join();
+            } finally {
+                pool.shutdown();
+            }
+        } else {
+            if (parallel) {
+                logger.warn("Context class loader cannot be changed, loading plugins sequentially");
+            }
+
+            plugins.forEach(clazz -> load(clazz, loadedPlugins, logger));
+        }
+    }
+
+    private static void load(Class<?> clazz, Collection<IConfigureNEI> loadedPlugins, Logger logger) {
+        try {
+            IConfigureNEI config = (IConfigureNEI) clazz.getConstructor().newInstance();
+            config.loadConfig();
+            loadedPlugins.add(config);
+            logger.debug("Loaded {}", clazz.getName());
+        } catch (Throwable e) {
+            logger.error("Failed to Load {}", clazz.getName(), e);
+        }
+    }
+
+    private static boolean canSetContextClassLoader() {
+        final SecurityManager securityManager = System.getSecurityManager();
+
+        if (securityManager == null) {
+            return true;
+        }
+
+        try {
+            securityManager.checkPermission(new RuntimePermission("setContextClassLoader"));
+            return true;
+        } catch (SecurityException e) {
+            return false;
+        }
+    }
+}

src/main/java/codechicken/nei/PopupInputHandler.java

@@ -1,69 +1,61 @@
 package codechicken.nei;
 
-import codechicken.nei.guihook.IContainerInputHandler;
+import static codechicken.nei.NEIClientConfig.canPerformAction;
+
 import net.minecraft.client.gui.inventory.GuiContainer;
 
-import static codechicken.nei.NEIClientConfig.canPerformAction;
-import static codechicken.nei.NEIClientConfig.getKeyBinding;
+import codechicken.nei.guihook.IContainerInputHandler;
+
+public class PopupInputHandler implements IContainerInputHandler {
 
-public class PopupInputHandler implements IContainerInputHandler
-{
     @Override
-    public boolean keyTyped(GuiContainer gui, char keyChar, int keyCode)
-    {
+    public boolean keyTyped(GuiContainer gui, char keyChar, int keyCode) {
         return false;
     }
 
     @Override
-    public boolean mouseClicked(GuiContainer gui, int mousex, int mousey, int button)
-    {
+    public boolean mouseClicked(GuiContainer gui, int mousex, int mousey, int button) {
         return false;
     }
 
     @Override
-    public void onKeyTyped(GuiContainer gui, char keyChar, int keyID)
-    {
+    public void onKeyTyped(GuiContainer gui, char keyChar, int keyID) {}
+
+    @Override
+    public boolean lastKeyTyped(GuiContainer gui, char keyChar, int keyID) {
+        return false;
     }
 
     @Override
-    public boolean lastKeyTyped(GuiContainer gui, char keyChar, int keyID)
-    {
-        if(keyID == getKeyBinding("gui.enchant") && canPerformAction("enchant"))
-        {
+    public boolean onHotkeyPressed(GuiContainer gui) {
+
+        if (KeyManager.isHashDown("gui.enchant") && canPerformAction("enchant")) {
             NEICPH.sendOpenEnchantmentWindow();
             return true;
         }
-        if(keyID == getKeyBinding("gui.potion") && canPerformAction("potion"))
-        {
+
+        if (KeyManager.isHashDown("gui.potion") && canPerformAction("potion")) {
             NEICPH.sendOpenPotionWindow();
             return true;
         }
+
         return false;
     }
 
     @Override
-    public void onMouseClicked(GuiContainer gui, int mousex, int mousey, int button)
-    {
-    }
+    public void onMouseClicked(GuiContainer gui, int mousex, int mousey, int button) {}
 
     @Override
-    public void onMouseUp(GuiContainer gui, int mousex, int mousey, int button)
-    {
-    }
+    public void onMouseUp(GuiContainer gui, int mousex, int mousey, int button) {}
 
     @Override
-    public boolean mouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled)
-    {
+    public boolean mouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
         return false;
     }
 
     @Override
-    public void onMouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled)
-    {
-    }
-    
+    public void onMouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {}
+
     @Override
-    public void onMouseDragged(GuiContainer gui, int mousex, int mousey, int button, long heldTime)
-    {
-    }
+    public void onMouseDragged(GuiContainer gui, int mousex, int mousey, int button, long heldTime) {}
 }

src/main/java/codechicken/nei/PositionedStack.java

@@ -1,100 +1,201 @@
 package codechicken.nei;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.List;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
 import net.minecraft.init.Blocks;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.oredict.OreDictionary;
 
-import java.util.ArrayList;
-import java.util.List;
+import codechicken.nei.api.ItemFilter;
+import codechicken.nei.api.ItemInfo;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.item.FluidDrawer;
+import codechicken.nei.item.FluidDrawer.FillDirection;
+import codechicken.nei.recipe.Badge;
+import codechicken.nei.recipe.GuiRecipe;
+import codechicken.nei.recipe.StackInfo;
 
 /**
- * Simply an {@link ItemStack} with position.
- * Mainly used in the recipe handlers.
+ * Simply an {@link ItemStack} with position. Mainly used in the recipe handlers.
  */
-public class PositionedStack
-{    
+public class PositionedStack implements Cloneable {
+
+    /** Maximum chance value representing 100% probability (1 unit = 0.01%). */
+    public static final int CHANCE_FULL = 10_000;
+
     public int relx;
     public int rely;
+    public int width = 16;
+    public int height = 16;
     public ItemStack[] items;
-    //compatibility dummy
+    // compatibility dummy
     public ItemStack item;
-    
-    private boolean permutated = false;
-    
+
+    protected int chance = CHANCE_FULL;
+    protected boolean permutated = false;
+
+    protected String acceptsLabel;
+
+    protected Function<ItemStack, List<String>> tooltip;
+    protected List<Badge> badges;
+
     public PositionedStack(Object object, int x, int y, boolean genPerms) {
         items = NEIServerUtils.extractRecipeItems(object);
         relx = x;
         rely = y;
-        
-        if(genPerms)
+
+        if (genPerms) {
             generatePermutations();
-        else
+        } else {
             setPermutationToRender(0);
+        }
     }
-    
-    public PositionedStack(Object object, int x, int y)
-    {
+
+    public PositionedStack(Object object, int x, int y) {
         this(object, x, y, true);
     }
 
     public void generatePermutations() {
-        if(permutated)
-            return;
-        
-        ArrayList<ItemStack> stacks = new ArrayList<>();
-        for(ItemStack item : items) {
-            if(item == null || item.getItem() == null)
-                continue;
-            
-            if(item.getItemDamage() == Short.MAX_VALUE) {
-                List<ItemStack> permutations = ItemList.itemMap.get(item.getItem());
-                if(!permutations.isEmpty()) {
-                    for(ItemStack stack : permutations)
-                        stacks.add(stack.copy());
-                }
-                else {
-                    ItemStack base = new ItemStack(item.getItem(), item.stackSize);
-                    base.stackTagCompound = item.stackTagCompound;
-                    stacks.add(base);
-                }
-                continue;
-            }
-            
-            stacks.add(item.copy());
-        }
-        items = stacks.toArray(new ItemStack[0]);
+        if (permutated) return;
+
+        items = ItemList.expandPermutations(items);
+
+        if (items.length == 0) {
+            items = new ItemStack[] { new ItemStack(Blocks.fire) };
+        }
 
-        if(items.length == 0)
-            items = new ItemStack[]{new ItemStack(Blocks.fire)};
-        
         permutated = true;
         setPermutationToRender(0);
     }
 
     public void setMaxSize(int i) {
-        for(ItemStack item : items)
-            if(item.stackSize > i)
-                item.stackSize = i;
+        for (ItemStack item : items) if (item.stackSize > i) item.stackSize = i;
     }
-    
+
+    public void setAcceptsLabel(String acceptsLabel) {
+        this.acceptsLabel = acceptsLabel;
+    }
+
+    public String getAcceptsLabel() {
+        return this.acceptsLabel;
+    }
+
+    public void setBadges(List<Badge> badges) {
+        this.badges = badges;
+    }
+
+    public List<Badge> getBadges() {
+        return this.badges;
+    }
+
+    public void setTooltip(List<String> tooltip) {
+        this.tooltip = tooltip == null ? null : item -> tooltip;
+    }
+
+    public void setTooltipProvider(Function<ItemStack, List<String>> provider) {
+        this.tooltip = provider;
+    }
+
+    public List<String> getTooltip() {
+        return this.tooltip == null ? null : this.tooltip.apply(this.item);
+    }
+
+    public int getChance() {
+        return this.chance;
+    }
+
+    public void setChance(int chance) {
+        this.chance = chance;
+    }
+
     public PositionedStack copy() {
-        return new PositionedStack(items, relx, rely);
+        try {
+            PositionedStack pStack = (PositionedStack) super.clone();
+            pStack.items = Arrays.stream(this.items).map(ItemStack::copy).toArray(ItemStack[]::new);
+            pStack.item = this.item == null ? null : this.item.copy();
+            pStack.badges = this.badges == null ? null : new ArrayList<>(this.badges);
+            return pStack;
+        } catch (CloneNotSupportedException e) {
+            throw new RuntimeException(e);
+        }
     }
-    
+
+    public void draw(int mousex, int mousey) {
+        final int x = this.relx + (this.width - 16) / 2;
+        final int y = this.rely + (this.height - 16) / 2;
+        GuiContainerManager.drawItem(x, y, this.item);
+    }
+
+    public List<ItemStack> getFilteredPermutations() {
+        return getFilteredPermutations(null);
+    }
+
+    public List<ItemStack> getFilteredPermutations(ItemFilter additionalFilter) {
+        List<ItemStack> items = new ArrayList<>(Arrays.asList(this.items));
+
+        items = filteringPermutations(items, item -> !ItemInfo.isHidden(item));
+        items = filteringPermutations(items, PresetsList.getItemFilter());
+        items = filteringPermutations(items, GuiRecipe.getSearchItemFilter());
+        items = filteringPermutations(items, additionalFilter);
+
+        items.sort(Comparator.comparing(FavoriteRecipes::containsManual).reversed());
+        return items;
+    }
+
+    private List<ItemStack> filteringPermutations(List<ItemStack> items, ItemFilter filter) {
+        if (filter == null) return items;
+        final List<ItemStack> filteredItems = items.stream().filter(filter::matches).collect(Collectors.toList());
+        return filteredItems.isEmpty() ? items : filteredItems;
+    }
+
+    public int getPermutationIndex(ItemStack stack) {
+
+        for (int index = 0; index < this.items.length; index++) {
+            if (NEIServerUtils.areStacksSameType(items[index], stack)) {
+                return index;
+            }
+        }
+
+        return -1;
+    }
+
+    public boolean setPermutationToRender(ItemStack ingredient) {
+        final int stackIndex = getPermutationIndex(ingredient);
+
+        if (stackIndex >= 0) {
+            setPermutationToRender(stackIndex);
+        }
+
+        return stackIndex >= 0;
+    }
+
     public void setPermutationToRender(int index) {
-        item = items[index].copy();
-        if(item.getItem() == null)
-            item = new ItemStack(Blocks.fire);
-        else if(item.getItemDamage() == OreDictionary.WILDCARD_VALUE && item.getItem() != null && item.getItem().isRepairable())
-            item.setItemDamage(0);
+        this.item = this.items[index].copy();
+
+        if (this.item.getItem() == null) {
+            this.item = new ItemStack(Blocks.fire);
+        } else if (this.item.getItemDamage() == OreDictionary.WILDCARD_VALUE && this.item.getItem().isRepairable()) {
+            this.item.setItemDamage(0);
+        }
+    }
+
+    public boolean contains(int mx, int my) {
+        return mx >= this.relx - 1 && mx < this.relx + this.width + 1
+                && my >= this.rely - 1
+                && my < this.rely + this.height + 1;
     }
 
     public boolean contains(ItemStack ingredient) {
-        for(ItemStack item : items)
-            if(NEIServerUtils.areStacksSameTypeCrafting(item, ingredient))
-                return true;
-        
+        for (ItemStack item : items) if (NEIServerUtils.areStacksSameTypeCrafting(item, ingredient)) return true;
+
         return false;
     }
 
@@ -102,23 +203,135 @@ public class PositionedStack
      * NBT-friendly version of {@link #contains(ItemStack)}
      */
     public boolean containsWithNBT(ItemStack ingredient) {
-        for(ItemStack item : items)
-            if(NEIServerUtils.areStacksSameTypeCraftingWithNBT(item, ingredient))
-                return true;
+        for (ItemStack item : items) if (StackInfo.equalItemAndNBT(item, ingredient, true)) return true;
 
         return false;
     }
 
     public boolean contains(Item ingred) {
-        for(ItemStack item : items)
-            if(item.getItem() == ingred)
-                return true;
-        
+        for (ItemStack item : items) if (item.getItem() == ingred) return true;
+
         return false;
     }
-    
+
     @Override
     public String toString() {
         return "PositionedStack(output='" + item.toString() + "')";
     }
+
+    public static class Placeholder extends PositionedStack {
+
+        public Placeholder(Object object, int x, int y, boolean genPerms) {
+            super(object, x, y, genPerms);
+        }
+
+        public Placeholder(Object object, int x, int y) {
+            this(object, x, y, true);
+        }
+
+        @Override
+        public void draw(int mousex, int mousey) {}
+    }
+
+    public static class Tank extends PositionedStack {
+
+        /** The tank size the fill level is measured against, in mB. 0 means "always render full". */
+        protected int capacity = 0;
+        protected boolean flowingTexture = false;
+        protected FillDirection fillDirection = FillDirection.AUTO;
+
+        private ItemStack cachedFluidItem;
+        private FluidStack cachedFluidStack;
+
+        public Tank(Object object, int x, int y, boolean genPerms) {
+            super(object, x, y, genPerms);
+        }
+
+        public Tank(Object object, int x, int y) {
+            this(object, x, y, true);
+        }
+
+        public Tank(Object object, int x, int y, int width, int height, int capacity) {
+            super(object, x, y, false);
+            this.width = width;
+            this.height = height;
+            setCapacity(capacity);
+        }
+
+        public int getCapacity() {
+            return this.capacity;
+        }
+
+        public Tank setCapacity(int capacity) {
+            this.capacity = Math.max(capacity, 0);
+            return this;
+        }
+
+        public boolean hasFlowingTexture() {
+            return this.flowingTexture;
+        }
+
+        public Tank setFlowingTexture(boolean flowingTexture) {
+            this.flowingTexture = flowingTexture;
+            return this;
+        }
+
+        public FillDirection getFillDirection() {
+            return this.fillDirection;
+        }
+
+        public Tank setFillDirection(FillDirection fillDirection) {
+            this.fillDirection = fillDirection == null ? FillDirection.AUTO : fillDirection;
+            return this;
+        }
+
+        protected FluidStack getFluidStack() {
+
+            if (this.item != this.cachedFluidItem) {
+                this.cachedFluidItem = this.item;
+                this.cachedFluidStack = StackInfo.isFluidDisplayItem(this.item) ? StackInfo.getFluid(this.item) : null;
+            }
+
+            return this.cachedFluidStack;
+        }
+
+        @Override
+        public List<String> getTooltip() {
+            final List<String> tooltip = new ArrayList<>();
+            final List<String> customTooltip = super.getTooltip();
+            final FluidStack fluidStack = getFluidStack();
+
+            if (fluidStack != null && this.capacity > 0) {
+                tooltip.add(
+                        EnumChatFormatting.GRAY + NEIClientUtils
+                                .translate("recipe.fluid.tank.amount", NEIClientUtils.formatFluid(fluidStack.amount)));
+            }
+
+            if (customTooltip != null) {
+                tooltip.addAll(customTooltip);
+            }
+
+            return tooltip;
+        }
+
+        @Override
+        public void draw(int mousex, int mousey) {
+            final FluidStack fluidStack = getFluidStack();
+
+            if (fluidStack == null) {
+                super.draw(mousex, mousey);
+                return;
+            }
+
+            FluidDrawer.drawTank(
+                    this.relx,
+                    this.rely,
+                    this.width,
+                    this.height,
+                    this.capacity,
+                    fluidStack,
+                    this.flowingTexture,
+                    this.fillDirection);
+        }
+    }
 }

src/main/java/codechicken/nei/PresetsList.java

@@ -0,0 +1,269 @@
+package codechicken.nei;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import net.minecraft.item.ItemStack;
+
+import org.apache.commons.io.IOUtils;
+
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.JsonSyntaxException;
+
+import codechicken.core.CommonUtils;
+import codechicken.nei.SubsetWidget.SubsetTag;
+import codechicken.nei.api.API;
+import codechicken.nei.api.IRecipeFilter;
+import codechicken.nei.api.IRecipeFilter.IRecipeFilterProvider;
+import codechicken.nei.api.ItemFilter;
+import codechicken.nei.api.ItemFilter.ItemFilterProvider;
+import codechicken.nei.recipe.IRecipeHandler;
+import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.NBTJson;
+
+public class PresetsList {
+
+    public enum PresetMode {
+        SUBSET,
+        HIDE,
+        REMOVE,
+        GROUP;
+    }
+
+    public static class Preset implements ItemFilter {
+
+        public String name = "";
+        public boolean enabled = true;
+        public PresetMode mode = PresetMode.HIDE;
+        public Set<String> items = new HashSet<>();
+
+        public static String getIdentifier(ItemStack stack) {
+            return StackInfo.getItemStackGUID(stack);
+        }
+
+        @Override
+        public boolean matches(ItemStack item) {
+            return items.contains(Preset.getIdentifier(item));
+        }
+
+        public Preset copy() {
+            Preset preset = new Preset();
+
+            preset.name = name;
+            preset.enabled = enabled;
+            preset.mode = mode;
+            preset.items = new HashSet<>(items);
+
+            return preset;
+        }
+    }
+
+    protected static class PresetRecipeFilter implements IRecipeFilterProvider, IRecipeFilter {
+
+        public Set<String> cache;
+
+        public IRecipeFilter getRecipeFilter() {
+
+            if (cache == null) {
+                cache = PresetsList.presets.stream().filter(p -> p.enabled && p.mode == PresetMode.REMOVE)
+                        .flatMap(p -> p.items.stream()).collect(Collectors.toSet());
+            }
+
+            return cache.isEmpty() ? null : this;
+        }
+
+        @Override
+        public boolean matches(IRecipeHandler handler, int recipeIndex) {
+
+            if (matchPositionedStack(handler.getIngredientStacks(recipeIndex), false)) {
+                return false;
+            }
+
+            final List<PositionedStack> outputs = handler.getResultStacks(recipeIndex);
+
+            if (matchPositionedStack(outputs, true)) {
+                return true;
+            }
+
+            final List<PositionedStack> auxiliaries = handler.getAuxiliaryStacks(recipeIndex);
+
+            if (matchPositionedStack(auxiliaries, true)) {
+                return true;
+            }
+
+            return outputs.isEmpty() && auxiliaries.isEmpty();
+        }
+
+        private boolean matchPositionedStack(List<PositionedStack> items, boolean dir) {
+            for (PositionedStack pStack : items) {
+                if (matchPositionedStack(pStack) == dir) {
+                    return true;
+                }
+            }
+
+            return false;
+        }
+
+        private boolean matchPositionedStack(PositionedStack pStack) {
+            for (ItemStack stack : pStack.items) {
+                if (!cache.contains(Preset.getIdentifier(stack))) {
+                    return true;
+                }
+            }
+
+            return false;
+        }
+
+    }
+
+    protected static class ItemPanelFilter implements ItemFilterProvider, ItemFilter {
+
+        public Set<String> cache;
+
+        public ItemFilter getFilter() {
+
+            if (cache == null) {
+                cache = PresetsList.presets.stream()
+                        .filter(p -> p.enabled && (p.mode == PresetMode.HIDE || p.mode == PresetMode.REMOVE))
+                        .flatMap(p -> p.items.stream()).collect(Collectors.toSet());
+            }
+
+            return cache.isEmpty() ? null : this;
+        }
+
+        @Override
+        public boolean matches(ItemStack stack) {
+            return !cache.contains(Preset.getIdentifier(stack));
+        }
+    }
+
+    public static final List<Preset> presets = new ArrayList<>();
+    protected static PresetRecipeFilter recipeFilter = new PresetRecipeFilter();
+    protected static ItemPanelFilter itemFilter = new ItemPanelFilter();
+
+    static {
+        API.addItemFilter(itemFilter);
+        API.addRecipeFilter(recipeFilter);
+    }
+
+    public static ItemFilter getItemFilter() {
+        return itemFilter.getFilter();
+    }
+
+    public static void load() {
+        final File presetsFile = new File(CommonUtils.getMinecraftDir(), "saves/NEI/global/presets.ini");
+
+        if (!presetsFile.exists()) return;
+
+        List<String> itemStrings;
+        try (FileInputStream reader = new FileInputStream(presetsFile)) {
+            NEIClientConfig.logger.info("Loading presets from file {}", presetsFile);
+            itemStrings = IOUtils.readLines(reader, StandardCharsets.UTF_8);
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to load presets from file {}", presetsFile, e);
+            return;
+        }
+
+        JsonParser parser = new JsonParser();
+        Preset preset = new Preset();
+        presets.clear();
+
+        for (String itemStr : itemStrings) {
+
+            try {
+
+                if (itemStr.isEmpty()) {
+                    itemStr = "; {}";
+                }
+
+                if (itemStr.startsWith("; ")) {
+                    JsonObject settings = parser.parse(itemStr.substring(2)).getAsJsonObject();
+
+                    if (!preset.items.isEmpty()) {
+                        // do not create empty namespaces
+                        presets.add(preset);
+                        preset = new Preset();
+                    }
+
+                    if (settings.has("name")) {
+                        preset.name = settings.get("name").getAsString();
+                    }
+
+                    if (settings.has("enabled")) {
+                        preset.enabled = settings.get("enabled").getAsBoolean();
+                    }
+
+                    if (settings.has("mode")) {
+                        preset.mode = PresetMode.valueOf(settings.get("mode").getAsString());
+                    }
+
+                } else {
+                    preset.items.add(itemStr);
+                }
+
+            } catch (IllegalArgumentException | JsonSyntaxException | IllegalStateException e) {
+                NEIClientConfig.logger.error("Failed to load presets ItemStack from json string:\n{}", itemStr);
+            }
+        }
+
+        if (!preset.items.isEmpty()) {
+            presets.add(preset);
+        }
+
+        updateSubsets();
+    }
+
+    public static void savePresets() {
+        final File presetsFile = new File(CommonUtils.getMinecraftDir(), "saves/NEI/global/presets.ini");
+        final List<String> strings = new ArrayList<>();
+
+        for (Preset preset : presets) {
+            JsonObject settings = new JsonObject();
+
+            settings.add("name", new JsonPrimitive(preset.name));
+            settings.add("enabled", new JsonPrimitive(preset.enabled));
+            settings.add("mode", new JsonPrimitive(preset.mode.toString()));
+
+            strings.add("; " + NBTJson.toJson(settings));
+            strings.addAll(preset.items);
+        }
+
+        try (FileOutputStream output = new FileOutputStream(presetsFile)) {
+            IOUtils.writeLines(strings, "\n", output, StandardCharsets.UTF_8);
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to save presets list to file {}", presetsFile, e);
+        }
+
+        recipeFilter.cache = null;
+        itemFilter.cache = null;
+        updateSubsets();
+        CollapsibleItems.saveStates();
+        CollapsibleItems.load();
+        ItemList.refreshItems.restart();
+    }
+
+    private static void updateSubsets() {
+        SubsetWidget.removeTag("Presets");
+
+        for (Preset preset : PresetsList.presets) {
+            if (preset.enabled && preset.mode == PresetMode.SUBSET) {
+                SubsetWidget.addTag(
+                        new SubsetTag(
+                                "Presets." + preset.name,
+                                stack -> preset.items.contains(Preset.getIdentifier(stack))));
+            }
+        }
+
+    }
+
+}