package aether.effects.convolution {
  
          import aether.utils.Adjustments;
          
          import flash.display.BitmapData;
          import flash.geom.Point;
          import flash.filters.ColorMatrixFilter;
          
          public class @ax-graphic-flex-image-effects-07-source-aether-effects-convolution-FindEdgesEffect extends ConvolutionEffect {
          
                  private var _grayscale:Boolean;
          
                  public function @ax-graphic-flex-image-effects-07-source-aether-effects-convolution-FindEdgesEffect(
                          grayscale:Boolean=false,
                          blendMode:String=null,
                          alpha:Number=1
                  ) {
                          var matrix:Array=[
                                  -1, -1, -1,
                                  -1,  8, -1,
                                  -1, -1, -1
                          ];
                          super(matrix, 1, 0, blendMode, alpha);
                          _grayscale = grayscale;                
                  }
  
                  override protected function applyEffect(bitmapData:BitmapData):void {
                          super.applyEffect(bitmapData);
                          if (_grayscale) {
                                  var gray:ColorMatrixFilter = new ColorMatrixFilter(Adjustments.GRAYSCALE_MATRIX);
                                  bitmapData.applyFilter(bitmapData, bitmapData.rect, new Point(), gray);
                          }
                  }
                  
          }
          
  }