package
{
	import __AS3__.vec.Vector;
	
	import flash.display.Bitmap;
	import flash.display.Sprite;
	import flash.display.StageAlign;
	import flash.display.StageScaleMode;
	import flash.events.MouseEvent;
	
	[SWF(backgroundColor=0xffffff)]
	public class lib_flex_animation_code_08_BitmapTrianglesUV2 extends Sprite
	{
		[Embed(source="image.jpg")]
		private var ImageClass:Class;
		
		private var handle0:Sprite;
		private var handle1:Sprite;
		private var handle2:Sprite;
		private var handle3:Sprite;
		private var vertices:Vector.<Number> = new Vector.<Number>();
		private var uvtData:Vector.<Number> = new Vector.<Number>();
		private var indices:Vector.<int> = new Vector.<int>();
		private var bitmap:Bitmap;
		
		public function lib_flex_animation_code_08_BitmapTrianglesUV2()
		{
			stage.align = StageAlign.TOP_LEFT;
			stage.scaleMode = StageScaleMode.NO_SCALE;
			
			handle0 = makeHandle(100, 100);
			handle1 = makeHandle(200, 100);
			handle2 = makeHandle(200, 200);
			handle3 = makeHandle(100, 200);
			
			uvtData.push(0, 0);
			uvtData.push(1, 0);
			uvtData.push(1, 1);
			uvtData.push(0, 1);
			
			indices.push(0, 1, 2);
			indices.push(2, 3, 0);
			
			bitmap= new ImageClass() as Bitmap;
			draw();
		}
		
		private function makeHandle(xpos:Number, ypos:Number):Sprite
		{
			var handle:Sprite = new Sprite();
			handle.graphics.beginFill(0);
			handle.graphics.drawCircle(0, 0, 5);
			handle.graphics.endFill();
			handle.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
			handle.x = xpos;
			handle.y = ypos;
			addChild(handle);
			return handle;
		}
		
		private function onMouseDown(event:MouseEvent):void
		{
			event.target.startDrag();
			stage.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
			stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
		}
		
		private function onMouseMove(event:MouseEvent):void
		{
			draw();
		}
		
		private function onMouseUp(event:MouseEvent):void
		{
			stopDrag();
			stage.removeEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
			stage.removeEventListener(MouseEvent.MOUSE_UP, onMouseUp);
		}
		
		private function draw():void
		{
			vertices[0] = handle0.x;
			vertices[1] = handle0.y;
			vertices[2] = handle1.x;
			vertices[3] = handle1.y;
			vertices[4] = handle2.x;
			vertices[5] = handle2.y;
			vertices[6] = handle3.x;
			vertices[7] = handle3.y;
			
			graphics.clear();
			graphics.beginBitmapFill(bitmap.bitmapData);
			graphics.drawTriangles(vertices, indices, uvtData);
			graphics.endFill();
		}
	}
}