import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.geom.Rectangle;
import fl.controls.Button;

var square:Sprite = new Sprite();
square.graphics.beginFill(0x000000);
square.graphics.drawRect(0,0,100,100);
square.graphics.endFill();
square.x=390;
square.y=70;
square.width=100;
square.height=100;
addChild(square);
var fileReference:FileReference = new FileReference();
var fileFilter:FileFilter=new FileFilter("Images","*.jpg");
fileReference.addEventListener(Event.SELECT, onSelectFile);
fileReference.addEventListener(Event.COMPLETE,onFileComplete);
var photoHolder:Sprite = new Sprite();
addChild(photoHolder);
photoHolder.x=10;
photoHolder.y=10;
bBrowse.addEventListener(MouseEvent.MOUSE_DOWN, browseFile);

function onFileComplete(event:Event):void {
  var bytes:ByteArray=fileReference.data;
  var loader:Loader = new Loader();
  loader.loadBytes(bytes);
  loader.contentLoaderInfo.addEventListener(Event.COMPLETE, completeHandler);
  photoHolder.addChild(loader);
}
function browseFile(e:MouseEvent) {
  fileReference.browse([fileFilter]);
}
function onSelectFile(event:Event):void {
  for (var i:Number=0; i< photoHolder.numChildren; i++) {
    photoHolder.removeChildAt(0);
  }
  photoHolder.scaleX=1;
  photoHolder.scaleY=1;
  fileReference.load();
}
function completeHandler(e:Event) {
  if (photoHolder.width>360) {
    photoHolder.height=360*photoHolder.height/photoHolder.width;
    photoHolder.width=360;
  }
  var bitmap:BitmapData=new BitmapData(photoHolder.width,photoHolder.height,false);
  bitmap.draw(photoHolder);
  setColor(averageColor(bitmap));
}
function averageColor(bitmap:BitmapData):Number {
  var sumColorR:Number=0;
  var sumColorG:Number=0;
  var sumColorB:Number=0;
  var count:Number=0;
  for (var h:Number = 0; h < bitmap.height; h++) {
    for (var w:Number = 0; w < bitmap.width; w++) {
      var col:Number=bitmap.getPixel(w,h);
      sumColorR+=col>>16&0xFF;
      sumColorG+=col>>8&0xFF;
      sumColorB+=col&0xFF;
      count++;
    }
  }
  var colorR:Number=Math.round(sumColorR/count)<<16;
  var colorG:Number=Math.round(sumColorG/count)<<8;
  var colorB:Number=Math.round(sumColorB/count);
  var color:Number=colorR|colorG|colorB;
  return color;
}
function setColor(color:Number) {
  var newColorTransform:ColorTransform = new ColorTransform();
  newColorTransform.color=color;
  square.transform.colorTransform=newColorTransform;
}