jpg画像をぐりぐりGlitch

/**
 * Copyright undo ( http://wonderfl.net/user/undo )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/pYM2
 */

<?xml version = "1.0" encoding = "utf-8"?>
<mx:Application xmlns:mx = "http://www.adobe.com/2006/mxml" layout = "absolute" applicationComplete = "init();">
	<mx:Script>
		<![CDATA[
		    /*
		    今やバグもアートの時代
		    http://www.amazon.co.jp/Glitch-Perfet-Imperfections-Iman-Moradi/dp/0979966663
		    */
			private var fr:FileReference = new FileReference();
			private var ba:ByteArray = new ByteArray();
			private var pl:Loader = new Loader();
			private var glitched:ByteArray = new ByteArray();
			private var rl:Loader = new Loader();
			
			private function init():void
			{
				this.preview.addChild(this.pl);
				this.image.addChild(this.rl);
				Wonderfl.capture_delay( 20 );
			}
			
			private function onBrowseBtnClick():void
			{
				//画像ファイルを参照
				this.fr.addEventListener(Event.SELECT, onFileSelect);
				this.fr.browse([new FileFilter("Images", "*.jpg")]);//jpgじゃないとダメみたい・・
			}
			
			private function onFileSelect(evt:Event):void
			{
				this.fr.removeEventListener(Event.SELECT, onFileSelect);
				this.fr.addEventListener(Event.COMPLETE, onFileComplete);
				this.fr.load();
			}
			
			private function onFileComplete(evt:Event):void
			{
				//画像ファイルをちっちゃく表示、ByteArrayを取得
				this.fr.removeEventListener(Event.COMPLETE, onFileComplete);
				this.ba = this.fr.data;
				this.pl.contentLoaderInfo.addEventListener(Event.COMPLETE, onPreviewLoadComp);
				this.pl.loadBytes(this.ba);
			}
			
			private function onPreviewLoadComp(evt:Event):void
			{
				this.pl.contentLoaderInfo.removeEventListener(Event.COMPLETE, onPreviewLoadComp);
				this.pl.scaleX = this.pl.scaleY = 1;
				this.pl.scaleX = this.pl.scaleY = Math.min(this.preview.width/this.pl.width,this.preview.height/this.pl.height);
			}
			
			private function onGlitchBtnClick():void
			{
				if(this.ba.length > 0)
				{
					startGlitch();
				}
				else
				{
					//画像を参照してね
				}
			}
			
			
			
			//
			//画像をGlitchする
			//
			private function startGlitch():void
			{
				this.glitched = null;
				this.glitched = new ByteArray();
				this.glitched.writeBytes(this.ba);
				var t:int = Math.floor(Number(this.time.text));
				for(var i:int = 0; i < t; i++)
				{
					//ByteArrayをランダムに書き換え
					this.glitched.position = Math.floor(Math.random()*(this.glitched.length - 128)) + 128
					this.glitched.writeByte(0);
				}
				//ByteArrayを画像としてLoaderにロード
				this.rl.contentLoaderInfo.addEventListener(Event.COMPLETE, onGlitchLoadComp);
				this.rl.loadBytes(this.glitched);
			}
			
			private function onGlitchLoadComp(evt:Event):void
			{
				this.rl.removeEventListener(Event.COMPLETE, onGlitchLoadComp);
				this.rl.scaleX = this.rl.scaleY = 1;
				this.rl.scaleX = this.rl.scaleY = this.width/Math.max(this.rl.width, this.rl.height);
			}
		]]>
	</mx:Script>


	<mx:Image id = "image" />

	<mx:HBox paddingTop = "10" paddingLeft = "10">
		<mx:Image id = "preview" width = "50" height = "50" />
		<mx:Button id = "browseBtn" label = "参照" click = "onBrowseBtnClick();" />
		<mx:TextInput id = "time" text = "50" width = "50" />
		<mx:Label text = "←処理量" />
		<mx:Button id = "createBtn" label = "Glitch!" click = "onGlitchBtnClick();" />
	</mx:HBox>

</mx:Application>