get displayObject's bitmap copy(filters, colorTransform)

getActualBitmapData.as

function getActualBitmapData(dis:DisplayObject):Sprite{
	//TODO, the dis must be on the stage
	var realBounds:Rectangle = dis.getBounds(dis.parent);
	var c:ColorTransform = dis.transform.colorTransform;
	var b:Rectangle = new Rectangle(0, 0, realBounds.width, realBounds.height);
	var mt:Matrix = dis.transform.matrix;
	var len:int = dis.filters.length;
	if(len > 0){
		for(var i:int = 0; i < len; i ++){
			var temp:BitmapData = new BitmapData(realBounds.width, realBounds.height, true, 0);
			var tempRect:Rectangle = temp.generateFilterRect(temp.rect, dis.filters[i]);
			b = b.union(tempRect);
			temp.dispose();
		}
	}
	b.offset(realBounds.x, realBounds.y);
	mt.translate(-b.x, -b.y);
	var d:BitmapData = new BitmapData(b.width, b.height, true, 0);
	d.draw(dis, mt, c);
	var s:Sprite = new Sprite();
	var bp:Bitmap = new Bitmap(d);
	s.addChild(bp);
	bp.x = -mt.tx;
	bp.y = -mt.ty;
	return s;
}