package aether.effects {
  
          import aether.utils.ImageUtil;
  
          import flash.display.BitmapData;
          import flash.display.BlendMode;
          import flash.geom.ColorTransform;
  
          public class @ax-graphic-flex-image-effects-07-source-aether-effects-ImageEffect {
                  
                  protected var _blendMode:String;
                  protected var _alpha:Number;
                  
                  protected function init(blendMode:String=null, alpha:Number=1):void {
                          _blendMode = blendMode;
                          _alpha = alpha;
                  }
  
                  protected function applyEffect(bitmapData:BitmapData):void {}
  
                  public function apply(bitmapData:BitmapData):void {
                          var clone:BitmapData = new BitmapData(bitmapData.width, bitmapData.height, true, 0x00000000);
                          ImageUtil.copyPixels(bitmapData, clone);
                          if ((!_blendMode || _blendMode == BlendMode.NORMAL) && _alpha == 1){
                                  applyEffect(clone);
                          } else {
                                  var overlay:BitmapData = clone.clone();
                                  applyEffect(overlay);
                                  clone.draw(overlay, null, new ColorTransform(1, 1, 1, _alpha), _blendMode);
                          }
                          ImageUtil.copyPixels(clone, bitmapData);
                  }
  
          }
  
  }