Add test project, fix readme, work on list widget

20 files changed, 693 insertions, 12 deletions

diff --git a/GuiTest/LICENSE b/GuiTest/LICENSE
new file mode 100644
index 0000000..458c24e
--- /dev/null
+++ b/GuiTest/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 The Cotton Project
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/GuiTest/build.gradle b/GuiTest/build.gradle
new file mode 100644
index 0000000..c45af5e
--- /dev/null
+++ b/GuiTest/build.gradle
@@ -0,0 +1,75 @@
+buildscript {
+	repositories {
+		jcenter()
+	}
+}
+
+plugins {
+	id 'fabric-loom' version '0.2.4-SNAPSHOT'
+}
+
+sourceCompatibility = JavaVersion.VERSION_1_8
+targetCompatibility = JavaVersion.VERSION_1_8
+
+if(rootProject.file('private.gradle').exists()) { //Publishing details
+	apply from: 'private.gradle'
+}
+
+archivesBaseName = project.archives_base_name
+version = project.mod_version
+group = project.maven_group
+
+minecraft {
+}
+
+repositories {
+	mavenLocal();
+	maven { url "http://server.bbkr.space:8081/artifactory/libs-release" }
+}
+
+dependencies {
+	minecraft "com.mojang:minecraft:${project.minecraft_version}"
+	mappings "net.fabricmc:yarn:${project.yarn_mappings}"
+	modApi "net.fabricmc:fabric-loader:${project.loader_version}"
+	modApi "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
+	modApi "io.github.cottonmc:Jankson:${project.jankson_version}"
+	include "io.github.cottonmc:Jankson:${project.jankson_version}"
+
+	compileOnly ("com.google.code.findbugs:jsr305:3.0.2") { transitive = false }
+
+
+	modApi "io.github.prospector:modmenu:1.7.9+build.118"
+	modApi "io.github.cottonmc:LibGui:1.3.1-SNAPSHOT"
+}
+
+processResources {
+	inputs.property "version", project.version
+
+	from(sourceSets.main.resources.srcDirs) {
+		include "fabric.mod.json"
+		expand "version": project.version
+	}
+
+	from(sourceSets.main.resources.srcDirs) {
+		exclude "fabric.mod.json"
+	}
+}
+
+// ensure that the encoding is set to UTF-8, no matter what the system default is
+// this fixes some edge cases with special characters not displaying correctly
+// see http://yodaconditions.net/blog/fix-for-java-file-encoding-problems-with-gradle.html
+tasks.withType(JavaCompile) {
+	options.encoding = "UTF-8"
+}
+
+// Loom will automatically attach sourcesJar to a RemapSourcesJar task and to the "build" task
+// if it is present.
+// If you remove this task, sources will not be generated.
+task sourcesJar(type: Jar, dependsOn: classes) {
+	classifier = "sources"
+	from sourceSets.main.allSource
+}
+
+jar {
+	from "LICENSE"
+}
\ No newline at end of file
diff --git a/GuiTest/gradle.properties b/GuiTest/gradle.properties
new file mode 100644
index 0000000..a8080fa
--- /dev/null
+++ b/GuiTest/gradle.properties
@@ -0,0 +1,18 @@
+# Done to increase the memory available to gradle.
+org.gradle.jvmargs=-Xmx1G
+
+# Fabric Properties
+	# check these on https://fabricmc.net/use
+	minecraft_version=1.14.4
+	yarn_mappings=1.14.4+build.3
+	loader_version=0.4.8+build.158
+
+# Mod Properties
+	mod_version = 1.3.1
+	maven_group = io.github.cottonmc
+	archives_base_name = LibGui
+
+# Dependencies
+	# currently not on the main fabric site, check on the maven: https://maven.fabricmc.net/net/fabricmc/fabric
+	fabric_version=0.3.0+build.206
+	jankson_version=1.0.0+j1.1.2
diff --git a/GuiTest/gradlew b/GuiTest/gradlew
new file mode 100755
index 0000000..cccdd3d
--- /dev/null
+++ b/GuiTest/gradlew
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# 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"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$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="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$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, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$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" ;;
+    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, 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"
+
+# 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 "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/GuiTest/gradlew.bat b/GuiTest/gradlew.bat
new file mode 100644
index 0000000..f955316
--- /dev/null
+++ b/GuiTest/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@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=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+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.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+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.
+
+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=%*
+
+: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
+
+: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
diff --git a/GuiTest/settings.gradle b/GuiTest/settings.gradle
new file mode 100644
index 0000000..5b60df3
--- /dev/null
+++ b/GuiTest/settings.gradle
@@ -0,0 +1,10 @@
+pluginManagement {
+    repositories {
+        jcenter()
+        maven {
+            name = 'Fabric'
+            url = 'https://maven.fabricmc.net/'
+        }
+        gradlePluginPortal()
+    }
+}
diff --git a/GuiTest/src/main/java/io/github/cottonmc/test/GuiItem.java b/GuiTest/src/main/java/io/github/cottonmc/test/GuiItem.java
new file mode 100644
index 0000000..906ad82
--- /dev/null
+++ b/GuiTest/src/main/java/io/github/cottonmc/test/GuiItem.java
@@ -0,0 +1,30 @@
+package io.github.cottonmc.test;
+
+import io.github.cottonmc.cotton.gui.client.ClientCottonScreen;
+import io.github.cottonmc.test.client.TestClientGui;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemGroup;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.ActionResult;
+import net.minecraft.util.Hand;
+import net.minecraft.util.Rarity;
+import net.minecraft.util.TypedActionResult;
+import net.minecraft.world.World;
+
+public class GuiItem extends Item {
+
+	public GuiItem() {
+		super(new Item.Settings().group(ItemGroup.TOOLS).rarity(Rarity.EPIC));
+	}
+	
+	@Override
+	public TypedActionResult<ItemStack> use(World world, PlayerEntity player, Hand hand) {
+		if (world.isClient) { 
+			MinecraftClient.getInstance().openScreen(new ClientCottonScreen(new TestClientGui()));
+		}
+		
+		return new TypedActionResult<ItemStack>(ActionResult.SUCCESS, (hand==Hand.MAIN_HAND) ? player.getMainHandStack() : player.getOffHandStack());
+	}
+}
diff --git a/GuiTest/src/main/java/io/github/cottonmc/test/LibGuiTest.java b/GuiTest/src/main/java/io/github/cottonmc/test/LibGuiTest.java
new file mode 100644
index 0000000..e2431c8
--- /dev/null
+++ b/GuiTest/src/main/java/io/github/cottonmc/test/LibGuiTest.java
@@ -0,0 +1,17 @@
+package io.github.cottonmc.test;
+
+import net.fabricmc.api.ModInitializer;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.registry.Registry;
+
+public class LibGuiTest implements ModInitializer {
+	public static final String MODID = "libgui-test";
+	
+	@Override
+	public void onInitialize() {
+		//TODO: Register an item that spawns a clientside gui, and a block that spawns a serverside one
+		
+		Registry.register(Registry.ITEM, new Identifier(MODID, "client_gui"), new GuiItem());
+	}
+
+}
diff --git a/GuiTest/src/main/java/io/github/cottonmc/test/client/LibGuiTestClient.java b/GuiTest/src/main/java/io/github/cottonmc/test/client/LibGuiTestClient.java
new file mode 100644
index 0000000..42b4b42
--- /dev/null
+++ b/GuiTest/src/main/java/io/github/cottonmc/test/client/LibGuiTestClient.java
@@ -0,0 +1,12 @@
+package io.github.cottonmc.test.client;
+
+import net.fabricmc.api.ClientModInitializer;
+
+public class LibGuiTestClient implements ClientModInitializer {
+
+	@Override
+	public void onInitializeClient() {
+		
+	}
+
+}
diff --git a/GuiTest/src/main/java/io/github/cottonmc/test/client/TestClientGui.java b/GuiTest/src/main/java/io/github/cottonmc/test/client/TestClientGui.java
new file mode 100644
index 0000000..73f23b4
--- /dev/null
+++ b/GuiTest/src/main/java/io/github/cottonmc/test/client/TestClientGui.java
@@ -0,0 +1,42 @@
+package io.github.cottonmc.test.client;
+
+import java.util.ArrayList;
+import java.util.function.BiConsumer;
+
+import io.github.cottonmc.cotton.gui.client.LightweightGuiDescription;
+import io.github.cottonmc.cotton.gui.widget.WGridPanel;
+import io.github.cottonmc.cotton.gui.widget.WLabel;
+import io.github.cottonmc.cotton.gui.widget.WListPanel;
+import io.github.cottonmc.cotton.gui.widget.WTextField;
+import net.minecraft.text.LiteralText;
+
+public class TestClientGui extends LightweightGuiDescription {
+
+	public TestClientGui() {
+		WGridPanel root = new WGridPanel();
+		this.setRootPanel(root);
+		
+		WTextField text = new WTextField();
+		text.setSuggestion("Test Suggestion");
+		root.add(text, 0, 1, 8, 1);
+		
+		ArrayList<String> data = new ArrayList<>();
+		data.add("This");
+		data.add("is");
+		data.add("a");
+		data.add("test");
+		data.add("of the");
+		data.add("new");
+		data.add("recycler-style");
+		data.add("list");
+		data.add("widget");
+		BiConsumer<String, WLabel> configurator = (String s, WLabel label) -> {
+			label.setText(new LiteralText(s));
+		};
+		WListPanel<String, WLabel> list = new WListPanel<String, WLabel>(data, WLabel.class, ()->new WLabel(""), configurator);
+		root.add(list, 0, 2, 8, 8);
+		
+		root.validate(this);
+	}
+
+}
diff --git a/GuiTest/src/main/resources/assets/libgui-test/icon.png b/GuiTest/src/main/resources/assets/libgui-test/icon.png
new file mode 100644
index 0000000..4286522
--- /dev/null
+++ b/GuiTest/src/main/resources/assets/libgui-test/icon.png
diff --git a/GuiTest/src/main/resources/fabric.mod.json b/GuiTest/src/main/resources/fabric.mod.json
new file mode 100644
index 0000000..df68f07
--- /dev/null
+++ b/GuiTest/src/main/resources/fabric.mod.json
@@ -0,0 +1,29 @@
+{
+  "schemaVersion": 1,
+  "id": "libgui-test",
+  "version": "${version}",
+
+  "name": "LibGui Test",
+  "description": "Some example Guis to shake out errors",
+  "authors": [
+    "Falkreon"
+  ],
+  "contact": {
+    "sources": "https://github.com/CottonMC/LibGUI"
+  },
+
+  "license": "MIT",
+  "icon": "assets/libgui-test/icon.png",
+
+  "environment": "*",
+  "entrypoints": {
+    "main": [ "io.github.cottonmc.test.LibGuiTest"],
+    "client": [ "io.github.cottonmc.test.client.LibGuiTestClient" ]
+  },
+  "depends": {
+    "fabricloader": ">=0.4.0",
+    "libgui": "*",
+    "jankson": "1.0.x",
+    "fabric": "*"
+  }
+}
diff --git a/Notes.md b/Notes.md
deleted file mode 100644
index 247589b..0000000
--- a/Notes.md
+++ /dev/null
@@ -1,5 +0,0 @@
-Changes for `WToggleButton` PR
-------------------------------
-+ Added @Environment tag to fix `class_1113` not found error from Sound Instance running on server side.
-+ Added default values for images and sizes
-+ Added `setOnToggle(Runnable r)`, and supporting handler methods.
\ No newline at end of file
diff --git a/README.md b/README.md
index f94e14b..5273a92 100644
--- a/README.md
+++ b/README.md
@@ -7,4 +7,9 @@ Instead, LibGui takes a logical description of your GUI, and draws it on-the-fly
 GUI system. Controls can be hung on an itemslot grid or offset from it. Panel styles, colors,
 and opacity can be customized, and everything can be extended.
 
-> See the [Cotton wiki](https://cottonmc.github.io/Wiki/getting_started/SetupDeveloper.html) for getting started with LibGui.
+
+See the [Cotton wiki](https://cottonmc.github.io/Wiki/getting_started/SetupDeveloper.html) for setup
+
+And for code examples:
+* [Client-Only Guis](https://github.com/CottonMC/LibGui/wiki/Client-Sided-Guis) 
+* [Inventory Guis](https://github.com/CottonMC/LibGui/wiki/Getting-Started-with-GUIs)
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index a8080fa..45585f4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -8,7 +8,7 @@ org.gradle.jvmargs=-Xmx1G
 	loader_version=0.4.8+build.158
 
 # Mod Properties
-	mod_version = 1.3.1
+	mod_version = 1.3.1-SNAPSHOT
 	maven_group = io.github.cottonmc
 	archives_base_name = LibGui
 
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/client/ClientCottonScreen.java b/src/main/java/io/github/cottonmc/cotton/gui/client/ClientCottonScreen.java
index f19cce7..16c0484 100644
--- a/src/main/java/io/github/cottonmc/cotton/gui/client/ClientCottonScreen.java
+++ b/src/main/java/io/github/cottonmc/cotton/gui/client/ClientCottonScreen.java
@@ -167,8 +167,8 @@ public class ClientCottonScreen extends Screen {
 		return true;
 	}
 	
-	@Override
-	public Element getFocused() {
-		return this;
-	}
+	//@Override
+	//public Element getFocused() {
+		//return this;
+	//}
 }
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/widget/Axis.java b/src/main/java/io/github/cottonmc/cotton/gui/widget/Axis.java
new file mode 100644
index 0000000..fd97f20
--- /dev/null
+++ b/src/main/java/io/github/cottonmc/cotton/gui/widget/Axis.java
@@ -0,0 +1,6 @@
+package io.github.cottonmc.cotton.gui.widget;
+
+public enum Axis {
+	HORIZONTAL,
+	VERTICAL;
+}
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/widget/WListPanel.java b/src/main/java/io/github/cottonmc/cotton/gui/widget/WListPanel.java
new file mode 100644
index 0000000..a98857e
--- /dev/null
+++ b/src/main/java/io/github/cottonmc/cotton/gui/widget/WListPanel.java
@@ -0,0 +1,118 @@
+package io.github.cottonmc.cotton.gui.widget;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.function.BiConsumer;
+import java.util.function.Supplier;
+
+import io.github.cottonmc.cotton.gui.GuiDescription;
+import io.github.cottonmc.cotton.gui.client.BackgroundPainter;
+import io.github.cottonmc.cotton.gui.client.ScreenDrawing;
+
+/**
+ * Similar to the RecyclerView in Android, this widget represents a scrollable list of items.
+ * 
+ * <p> D is the type of data represented. The data must reside in some ordered backing {@code List<D>}.
+ *     D's *must* have working equals and hashCode methods to distinguish them from each other!
+ * <p> W is the WWidget class that will represent a single D of data.
+ */
+public class WListPanel<D, W extends WWidget> extends WPanel {
+	protected List<D> data;
+	protected Class<W> listItemClass;
+	protected Supplier<W> supplier;
+	protected BiConsumer<D, W> configurator;
+	
+	protected HashMap<D, W> configured = new HashMap<>();
+	protected List<W> unconfigured = new ArrayList<>();
+	protected int cellHeight = 20;
+	protected boolean fixedHeight = false;
+	
+	protected int margin = 4;
+	
+	protected int scrollOffset;
+	
+	public WListPanel(List<D> data, Class<W> listItemClass, Supplier<W> supplier, BiConsumer<D, W> configurator) {
+		this.data = data;
+		this.listItemClass = listItemClass;
+		this.supplier = supplier;
+		this.configurator = configurator;
+	}
+	
+	@Override
+	public void paintBackground(int x, int y) {
+		if (getBackgroundPainter()!=null) {
+			getBackgroundPainter().paintBackground(x, y, this);
+		} else {
+			ScreenDrawing.drawBeveledPanel(x, y, width, height);
+		}
+		
+		for(WWidget child : children) {
+			child.paintBackground(x + child.getX(), y + child.getY());
+		}
+	}
+	
+	@Override
+		public void layout() {
+			super.layout();
+			
+			System.out.println("Validating");
+			
+			//Recompute cellHeight if needed
+			if (!fixedHeight) {
+				if (unconfigured.isEmpty()) {
+					if (configured.isEmpty()) {
+						W exemplar = supplier.get();
+						unconfigured.add(exemplar);
+						if (!exemplar.canResize()) cellHeight = exemplar.getHeight();
+					} else {
+						W exemplar = configured.values().iterator().next();
+						if (!exemplar.canResize()) cellHeight = exemplar.getHeight();
+					}
+				} else {
+					W exemplar = unconfigured.get(0);
+					if (!exemplar.canResize()) cellHeight = exemplar.getHeight();
+				}
+			}
+			if (cellHeight<4) cellHeight=4;
+			
+			int layoutHeight = this.getHeight()-(margin*2);
+			int cellsHigh = layoutHeight / cellHeight;
+			int presentCells = Math.min(data.size()-scrollOffset, cellsHigh);
+			
+			System.out.println("Adding children...");
+			
+			this.children.clear();
+			if (presentCells>0) {
+				for(int i=0; i<presentCells; i++) {
+					int index = i+scrollOffset;
+					D d = data.get(index);
+					W w = configured.get(d);
+					if (w==null) {
+						if (unconfigured.isEmpty()) {
+							w = supplier.get();
+						} else {
+							w = unconfigured.remove(0);
+						}
+						configurator.accept(d, w);
+					}
+					
+					//At this point, w is nonnull and configured by d
+					if (w.canResize()) {
+						w.setSize(this.width-(margin*2), cellHeight);
+					}
+					w.x = margin;
+					w.y = margin + (cellHeight * i);
+					this.children.add(w);
+				}
+			}
+			
+			System.out.println("Children: "+children.size());
+		}
+	
+	public WListPanel<D, W> setListItemHeight(int height) {
+		cellHeight = height;
+		fixedHeight = true;
+		return this;
+	}
+}
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/widget/WPanel.java b/src/main/java/io/github/cottonmc/cotton/gui/widget/WPanel.java
index 630494f..055e188 100644
--- a/src/main/java/io/github/cottonmc/cotton/gui/widget/WPanel.java
+++ b/src/main/java/io/github/cottonmc/cotton/gui/widget/WPanel.java
@@ -9,7 +9,7 @@ import io.github.cottonmc.cotton.gui.client.BackgroundPainter;
 import net.fabricmc.api.EnvType;
 import net.fabricmc.api.Environment;
 
-public class WPanel extends WWidget {
+public abstract class WPanel extends WWidget {
 	protected final List<WWidget> children = Lists.newArrayList();
 	@Environment(EnvType.CLIENT)
 	private BackgroundPainter backgroundPainter = null;
@@ -37,6 +37,11 @@ public class WPanel extends WWidget {
 		return this;
 	}
 	
+	@Environment(EnvType.CLIENT)
+	public BackgroundPainter getBackgroundPainter() {
+		return this.backgroundPainter;
+	}
+	
 	/**
 	 * Uses this Panel's layout rules to reposition and resize components to fit nicely in the panel.
 	 */
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/widget/WScrollBar.java b/src/main/java/io/github/cottonmc/cotton/gui/widget/WScrollBar.java
new file mode 100644
index 0000000..289a2cd
--- /dev/null
+++ b/src/main/java/io/github/cottonmc/cotton/gui/widget/WScrollBar.java
@@ -0,0 +1,42 @@
+package io.github.cottonmc.cotton.gui.widget;
+
+import io.github.cottonmc.cotton.gui.client.ScreenDrawing;
+
+public class WScrollBar extends WWidget {
+	protected Axis axis = Axis.HORIZONTAL;
+	protected int value;
+	protected int maxValue = 100;
+	protected int window = 16;
+	
+	public WScrollBar() {
+	}
+	
+	public WScrollBar(Axis axis) {
+		this.axis = axis;
+	}
+	
+	@Override
+	public void paintBackground(int x, int y) {
+		ScreenDrawing.drawBeveledPanel(x, y, width, height, 0xFFFFFFFF, 0xFF8b8b8b, 0xFF373737);
+		
+		float barHeight = (window>maxValue) ? 1f : window / maxValue;
+		int scrollDistance = maxValue - window;
+		
+		
+		super.paintBackground(x, y);
+	}
+	
+	@Override
+	public void setSize(int x, int y) {
+		switch(axis) {
+		case HORIZONTAL:
+			this.width = x;
+			this.height = 8;
+			break;
+		case VERTICAL:
+			this.width = 8;
+			this.height = y;
+			break;
+		}
+	}
+}