flash on 2010-8-11

/**
 * Copyright virtualex ( http://wonderfl.net/user/virtualex )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/66JC
 */

package {
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.Loader;
    import flash.display.Sprite;
    import flash.events.*;
    import flash.geom.Point;
    import flash.geom.Rectangle;
    import flash.net.URLRequest;
 
    public class BitmapDataExample extends Sprite {
        private var url:String = "http://images.brighthub.com/C1/C/C1CAC804D239C8672F215BE0B195B78177AB8FA0_large.jpg"; 
        private var size:uint = 100;
 
        public function BitmapDataExample() {
            configureAssets();
        } 
  
        private function configureAssets():void {
            var loader:Loader = new Loader()
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE, completeHandler);
//            loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
  
            var request:URLRequest = new URLRequest(url);
            loader.x = size * numChildren;
            loader.load(request);
            addChild(loader);
            trace("Here "); 
        }

        private function duplicateImage(original:Bitmap):Bitmap {
            var image:Bitmap = new Bitmap(original.bitmapData.clone());
            image.x = size * numChildren;
            addChild(image);
            return image;
        }
 
        private function completeHandler(event:Event):void {
            var loader:Loader = Loader(event.target.loader);
            var image:Bitmap = Bitmap(loader.content);

            var duplicate:Bitmap = duplicateImage(image);
            var bitmapData:BitmapData = duplicate.bitmapData;
            var sourceRect:Rectangle = new Rectangle(0, 0, bitmapData.width, bitmapData.height);
            var destPoint:Point = new Point();
            var operation:String = ">=";
            var threshold:uint = 0xCCCCCCCC;
            var color:uint = 0xFFFFFF00;
            var mask:uint = 0x000000FF;
            var copySource:Boolean = true;

            bitmapData.threshold(bitmapData,
                                 sourceRect, 
                                 destPoint,
                                 operation,
                                 threshold,
                                 color,
                                 mask,
                                 copySource);
        }
        
        private function ioErrorHandler(event:IOErrorEvent):void {
            trace("Unable to load image: " + url);
        }
    }
}