Multi page atlas support for Flash and Starling.

http://www.esotericsoftware.com/forum/viewtopic.php?p=9409#p9409

spine-as3/spine-as3-example/src/Main.as

@@ -41,7 +41,7 @@ import spine.SkeletonJson;
 import spine.animation.AnimationStateData;
 import spine.atlas.Atlas;
 import spine.attachments.AtlasAttachmentLoader;
-import spine.flash.SingleTextureLoader;
+import spine.flash.FlashTextureLoader;
 import spine.flash.SkeletonAnimation;
 
 [SWF(width = "640", height = "480", frameRate = "60", backgroundColor = "#dddddd")]
@@ -58,7 +58,7 @@ public class Main extends Sprite {
 	private var skeleton:SkeletonAnimation;
 
 	public function Main () {
-		var atlas:Atlas = new Atlas(new SpineboyAtlas(), new SingleTextureLoader(new SpineboyAtlasTexture()));
+		var atlas:Atlas = new Atlas(new SpineboyAtlas(), new FlashTextureLoader(new SpineboyAtlasTexture()));
 		var json:SkeletonJson = new SkeletonJson(new AtlasAttachmentLoader(atlas));
 		var skeletonData:SkeletonData = json.readSkeletonData(new SpineboyJson());
 

spine-as3/spine-as3/src/spine/flash/SingleTextureLoader.as → spine-as3/spine-as3/src/spine/flash/FlashTextureLoader.as

@@ -39,23 +39,42 @@ import spine.atlas.AtlasPage;
 import spine.atlas.AtlasRegion;
 import spine.atlas.TextureLoader;
 
-public class SingleTextureLoader implements TextureLoader {
-	private var pageBitmapData:BitmapData;
+public class FlashTextureLoader implements TextureLoader {
+	public var bitmapDatas:Object = {};
+	public var singleBitmapData:BitmapData;
 
-	/** @param object A Bitmap or BitmapData. */
-	public function SingleTextureLoader (object:*) {
-		if (object is BitmapData)
-			pageBitmapData = BitmapData(object);
-		else if (object is Bitmap)
-			pageBitmapData = Bitmap(object).bitmapData;
-		else
-			throw new ArgumentError("object must be a Bitmap or BitmapData.");
+	/** @param bitmaps A Bitmap or BitmapData for an atlas that has only one page, or for a multi page atlas an object where the 
+	 * key is the image path and the value is the Bitmap or BitmapData. */
+	public function FlashTextureLoader (bitmaps:Object) {
+		if (bitmaps is BitmapData) {
+			singleBitmapData = BitmapData(bitmaps);
+			return;
+		}
+		if (bitmaps is Bitmap) {
+			singleBitmapData = Bitmap(bitmaps).bitmapData;
+			return;
+		}
+
+		for (var path:* in bitmaps) {
+			var object:* = bitmaps[path];
+			var bitmapData:BitmapData;
+			if (object is BitmapData)
+				bitmapData = BitmapData(object);
+			else if (object is Bitmap)
+				bitmapData = Bitmap(object).bitmapData;
+			else
+				throw new ArgumentError("Object for path \"" + path + "\" must be a Bitmap or BitmapData: " + object);
+			bitmapDatas[path] = bitmapData;
+		}
 	}
 
 	public function loadPage (page:AtlasPage, path:String) : void {
-		page.rendererObject = pageBitmapData;
-		page.width = pageBitmapData.width;
-		page.height = pageBitmapData.height;
+		var bitmapData:BitmapData = singleBitmapData || bitmapDatas[path];
+		if (!bitmapData)
+			throw new ArgumentError("BitmapData not found with name: " + path);
+		page.rendererObject = bitmapData;
+		page.width = bitmapData.width;
+		page.height = bitmapData.height;
 	}
 	
 	public function loadRegion (region:AtlasRegion) : void {

spine-starling/spine-starling-example/src/AtlasExample.as

@@ -6,7 +6,7 @@ import spine.SkeletonJson;
 import spine.animation.AnimationStateData;
 import spine.atlas.Atlas;
 import spine.attachments.AtlasAttachmentLoader;
-import spine.starling.SingleTextureLoader;
+import spine.starling.StarlingTextureLoader;
 import spine.starling.SkeletonAnimation;
 import spine.starling.StarlingAtlasAttachmentLoader;
 
@@ -31,7 +31,7 @@ public class AtlasExample extends Sprite {
 	private var skeleton:SkeletonAnimation;
 
 	public function AtlasExample () {
-		var atlas:Atlas = new Atlas(new SpineboyAtlasFile(), new SingleTextureLoader(new SpineboyAtlasTexture()));
+		var atlas:Atlas = new Atlas(new SpineboyAtlasFile(), new StarlingTextureLoader(new SpineboyAtlasTexture()));
 		var json:SkeletonJson = new SkeletonJson(new AtlasAttachmentLoader(atlas));
 		var skeletonData:SkeletonData = json.readSkeletonData(new SpineboyJson());
 

spine-starling/spine-starling/src/spine/starling/SingleTextureLoader.as → spine-starling/spine-starling/src/spine/starling/StarlingTextureLoader.as

@@ -44,23 +44,42 @@ import spine.atlas.TextureLoader;
 import starling.textures.SubTexture;
 import starling.textures.Texture;
 
-public class SingleTextureLoader implements TextureLoader {
-	private var pageBitmapData:BitmapData;
-	
-	/** @param object A Bitmap or BitmapData. */
-	public function SingleTextureLoader (object:*) {
-		if (object is BitmapData)
-			pageBitmapData = BitmapData(object);
-		else if (object is Bitmap)
-			pageBitmapData = Bitmap(object).bitmapData;
-		else
-			throw new ArgumentError("object must be a Bitmap or BitmapData.");
+public class StarlingTextureLoader implements TextureLoader {
+	public var bitmapDatas:Object = {};
+	public var singleBitmapData:BitmapData;
+
+	/** @param bitmaps A Bitmap or BitmapData for an atlas that has only one page, or for a multi page atlas an object where the 
+	 * key is the image path and the value is the Bitmap or BitmapData. */
+	public function StarlingTextureLoader (bitmaps:Object) {
+		if (bitmaps is BitmapData) {
+			singleBitmapData = BitmapData(bitmaps);
+			return;
+		}
+		if (bitmaps is Bitmap) {
+			singleBitmapData = Bitmap(bitmaps).bitmapData;
+			return;
+		}
+		
+		for (var path:* in bitmaps) {
+			var object:* = bitmaps[path];
+			var bitmapData:BitmapData;
+			if (object is BitmapData)
+				bitmapData = BitmapData(object);
+			else if (object is Bitmap)
+				bitmapData = Bitmap(object).bitmapData;
+			else
+				throw new ArgumentError("Object for path \"" + path + "\" must be a Bitmap or BitmapData: " + object);
+			bitmapDatas[path] = bitmapData;
+		}
 	}
-	
+
 	public function loadPage (page:AtlasPage, path:String) : void {
-		page.rendererObject = Texture.fromBitmapData(pageBitmapData);
-		page.width = pageBitmapData.width;
-		page.height = pageBitmapData.height;
+		var bitmapData:BitmapData = singleBitmapData || bitmapDatas[path];
+		if (!bitmapData)
+			throw new ArgumentError("BitmapData not found with name: " + path);
+		page.rendererObject = Texture.fromBitmapData(bitmapData);
+		page.width = bitmapData.width;
+		page.height = bitmapData.height;
 	}
 
 	public function loadRegion (region:AtlasRegion) : void {
@@ -78,9 +97,9 @@ public class SingleTextureLoader implements TextureLoader {
 		}
 		region.rendererObject = image;
 	}
-	
+
 	public function unloadPage (page:AtlasPage) : void {
-		BitmapData(pageBitmapData).dispose();
+		BitmapData(page.rendererObject).dispose();
 	}
 }