Image Distortion Class

talk open source
1

I have been racking my brain with trying to convert http://www.rubenswieringa.com/blog/distortimage into as3 im am very unfamilier with flex so I have become somewhat stuck can anyone help me.

I have set the buttons for transform and loading the image but its just not working at all.

update here is the image distortion class

package
{
   import flash.display.Shape;
   import flash.display.MovieClip;
   import flash.display.Sprite;
   import flash.display.Bitmap;
   import flash.display.BitmapData;
   import flash.display.DisplayObject;
   import flash.display.Loader;

   import flash.events.Event;
   import flash.events.MouseEvent;
   
   import flash.geom.Point;
   
   import flash.net.URLRequest;
   import flash.net.URLLoader;

   import DistortImage;
   
   public class PrTransform extends MovieClip
   {
      private var shape:Shape;
      private var image:Sprite;   
      private var loader:Loader;
      private var bitmapData:BitmapData;
      
      private var preparationRecursion:int;
      private var distortion:DistortImage;
      private var showGrid:Boolean;
      
      private var dragTL:dragBtn;
      private var dragTR:dragBtn;
      private var dragBL:dragBtn;
      private var dragBR:dragBtn;
      
      private var center:Point;

      public function PrTransform()
      {
         loader = new Loader();
         image = new Sprite();
         shape = new Shape();
         //bitmapData = new BitmapData();
         
         preparationRecursion = 0;
         distortion = new DistortImage(574, 377);
         showGrid = false;
         
         addChild(image);
         creationComplete();
         
         dragTL = new dragBtn();
         dragTR = new dragBtn();
         dragBL = new dragBtn();
         dragBR = new dragBtn();
         
         this.addChild(dragTL);
         this.addChild(dragTR);
         this.addChild(dragBL);
         this.addChild(dragBR);
         
         dragTL.addEventListener(MouseEvent.MOUSE_DOWN, tlStart);
         dragTL.addEventListener(MouseEvent.MOUSE_UP, tlStop);
         dragTR.addEventListener(MouseEvent.MOUSE_DOWN, trStart);
         dragTR.addEventListener(MouseEvent.MOUSE_UP, trStop);
         dragBL.addEventListener(MouseEvent.MOUSE_DOWN, blStart);
         dragBL.addEventListener(MouseEvent.MOUSE_UP, blStop);
         dragBR.addEventListener(MouseEvent.MOUSE_DOWN, brStart);
         dragBR.addEventListener(MouseEvent.MOUSE_UP, brStop);
         
         center = new Point();
      }
      
      private function creationComplete():void
      {
         trace("CREATION: ");
         shape.x = shape.y = 50;
         addChild(shape);
         image.visible = true;
         addChildAt(image, 0);
         loadImage();
         
      }
      
      private function onEnterFrame(event:Event):void
      {
         trace("SET TRANSFORM: ");
         shape.graphics.clear();
         distortion.setTransform(shape.graphics, bitmapData, 
                           getDisplayObjectCenter(dragTL, -50, -50),
                           getDisplayObjectCenter(dragTR, -50, -50),
                           getDisplayObjectCenter(dragBL, -50, -50),
                           getDisplayObjectCenter(dragBR, -50, -50));
                           
      }
      
      
      private function getDisplayObjectCenter (child:DisplayObject, x:Number = 0, y:Number = 0):Point
      {
         center.x = child.x + child.width/2 + x;
         center.y = child.y + child.height/2 + y;
         return center;
      }
      
      private function loadImage():void
      {
      trace("LOAD IMAGE: ")
      loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onLoadComplete);
      loader.load(new URLRequest("4m.png"));
      }
      
      private function onLoadComplete(event:Event):void
      {
      image.addChild(this.loader);
      dragTL.x = 0;
      dragTL.y = 0;
      dragTR.x = image.width;
      dragTR.y = 0;
      dragBL.x = 0;
      dragBL.y = image.height;
      dragBR.x = image.width;
      dragBR.y = image.height;
      
      }
      
      private function prepareDistortion (event:Event):void {
                // if this method has called itself for more than 25 times something must be wrong:
                this.preparationRecursion++;
                if (this.preparationRecursion >= 25){
                    return;
                }
                // fetch BitmapData:
                this.bitmapData = new BitmapData(image.width, image.height);
                this.bitmapData.draw(this.image);
                // remove Image from Stage and start calling the onEnterFrame() method:
                this.removeChild(this.image);
                this.addEventListener(Event.ENTER_FRAME, this.onEnterFrame);
        }
      
      private function tlStart(e:MouseEvent):void
      {
         startDrag();
      }
      private function trStart(e:MouseEvent):void
      {
         startDrag();
      }
      private function blStart(e:MouseEvent):void
      {
         startDrag();
      }
      private function brStart(e:MouseEvent):void
      {
         startDrag();
      }
      private function tlStop(e:MouseEvent):void
      {
         stopDrag();
      }
      private function trStop(e:MouseEvent):void
      {
         stopDrag();
      }
      private function blStop(e:MouseEvent):void
      {
         stopDrag();
      }
      private function brStop(e:MouseEvent):void
      {
         stopDrag();
      }
      
      
   }
}