package {
    import flash.display.*;
    import flash.events.*;
    import flash.geom.*;
    import flash.net.*;
    import flash.filters.*;
  
    public class @ax-actionscript-bitmap-ScrapbookImage extends Sprite {
      private var numLoaded:int = 0;
      private var photoLoader:Loader;   // The photo loader
      private var borderLoader:Loader;  // The borter loader
  
      public function @ax-actionscript-bitmap-ScrapbookImage () {
        // Load the photograph
        photoLoader = new Loader();
        photoLoader.contentLoaderInfo.addEventListener(Event.INIT,
                                                       initListener);
        photoLoader.load(new URLRequest("actionscript-bitmap-assets-photo.jpg"));
  
        // Load the border
        borderLoader = new Loader();
        borderLoader.contentLoaderInfo.addEventListener(Event.INIT,
                                                        initListener);
        borderLoader.load(new URLRequest("actionscript-bitmap-assets-border.png"));
      }
  
      // Handles Event.INIT events for the loaded images
      private function initListener (e:Event):void {
        numLoaded++;
        // When those images have loaded, apply the effect
        if (numLoaded == 2) { 
          make@ax-actionscript-bitmap-ScrapbookImage();
        }
      }
  
      // Combines the border image with the photo image to produce
      // the aged photograph effect
      private function make@ax-actionscript-bitmap-ScrapbookImage ():void {
        // Retrieve the BitmapData object for the photograph
        var photoData:BitmapData = Bitmap(photoLoader.content).bitmapData;
        // Retrieve the BitmapData object for the border
        var borderData:BitmapData = Bitmap(borderLoader.content).bitmapData;
        // Create a BitmapData object that will hold the final 
        // photograph image
        var tempBitmapData:BitmapData = new BitmapData(borderData.width,
                                                       borderData.height,
                                                       true, 
                                                       0x00000000);
  
        // Copy the pixels  from the photograph, while applying the
        // border's Alpha channel
        tempBitmapData.copyPixels(photoData, 
                                  borderData.rect,
                                  new Point(0,0),
                                  borderData,
                                  new Point(0,0),
                                  false);
  
        // A ColorMatrixFilter that will increase brightness
        var brightnessOffset:int = 70;
        var brightnessFilter:ColorMatrixFilter = new ColorMatrixFilter(
            new Array(1,0,0,0,brightnessOffset,
                      0,1,0,0,brightnessOffset,
                      0,0,1,0,brightnessOffset,
                      0,0,0,1,0));
       
        // A blur filter to make the image look fuzzy
        var blurFilter:BlurFilter = new BlurFilter(1, 1);
        
        // A drop shadow filter to make the image look like it's on paper
        var dropShadowFilter:DropShadowFilter = new DropShadowFilter(4, 35, 
                          0x2E2305, .6, 5, 12, 4, BitmapFilterQuality.MEDIUM);
                          
        // Calculate the area required to display the image 
        // and its drop shadow
        var filteredImageRect:Rectangle = tempBitmapData.generateFilterRect(
                                       tempBitmapData.rect, dropShadowFilter);
  
        // Create a BitmapData object that will hold the final image
        var scrapbookImage:BitmapData = 
                                       new BitmapData(filteredImageRect.width,
                                           filteredImageRect.height,
                                           true, 
                                           0xFFFFFFFF);
                                           
        // Apply the ColorMatrixFilter, which increases the brightness
        tempBitmapData.applyFilter(tempBitmapData,
                                   tempBitmapData.rect,
                                   new Point(0,0),
                                   brightnessFilter);
  
        // Apply the BlurFilter
        tempBitmapData.applyFilter(tempBitmapData,
                                   tempBitmapData.rect,
                                   new Point(0,0),
                                   blurFilter);
  
        // Apply the DropShadowFilter
        scrapbookImage.applyFilter(tempBitmapData,
                                   tempBitmapData.rect,
                                   new Point(-filteredImageRect.x,
                                             -filteredImageRect.y),
                                   dropShadowFilter);
        
        // Associate the scrapbookImage BitmapData object with a Bitmap
        // object for on-screen display
        var b:Bitmap = new Bitmap(scrapbookImage);
        addChild(b);
        b.x = 100;
        b.y = 75;
      }
    }
  }