package {

	import flash.display.BitmapData;
	import flash.display.Shape;
	import flash.display.Sprite;
	import flash.geom.Matrix;

	[SWF(width=550, height=400, backgroundColor=0xFFFFFF)]

	/**
	* Demonstrates the different parameters of beginBitmapFill().
	*/
	public class graphic_flex_image_effects_01_Flex_FillingShapesWithBitmaps extends Sprite {

		/**
		* Constructor. Calls draw().
		*/
		public function graphic_flex_image_effects_01_Flex_FillingShapesWithBitmaps() {
			draw();
		}

		/**
		* Creates an image using Perlin noise.
		*
		* @return The image created.
		*/
		private function makeBitmapData():BitmapData {
			var bitmap:BitmapData = new BitmapData(100, 100);
			bitmap.perlinNoise(40, 40, 2, Math.random(), true, false);
			return bitmap;
		}

		/**
		* Draws the created image into four shapes.
		*/
		private function draw():void {
			var bitmap:BitmapData = makeBitmapData();

			// parameters for shapes
			var width:Number = stage.stageWidth/2;
			var height:Number = stage.stageHeight/2;
			var radius:Number = 70;

			// top left shape simply draws bitmap
			var shape:Shape = new Shape();
			with (shape.graphics) {
				beginBitmapFill(bitmap);
				drawRoundRect(0, 0, width, height, radius, radius);
				endFill();
			}
			addChild(shape);

			// top right shape does not tile bitmap
			shape = new Shape();
			var matrix:Matrix = new Matrix();
			matrix.translate((width-bitmap.width)/2, (height-bitmap.height)/2);
			with (shape.graphics) {
				beginBitmapFill(bitmap, matrix, false);
				drawRoundRect(0, 0, width, height, radius, radius);
				endFill();
			}
			shape.x = width;
			addChild(shape);
			
			// bottom left shape shows rotated bitmap, not tiled
			shape = new Shape();
			matrix.rotate(Math.PI/4);
			with (shape.graphics) {
				beginBitmapFill(bitmap, matrix, false);
				drawRoundRect(0, 0, width, height, radius, radius);
				endFill();
			}
			shape.y = height;
			addChild(shape);

			// bottom right shape shows scaled bitmap, not smoothed
			shape = new Shape();
			matrix = new Matrix();
			matrix.scale(20, 20);
			with (shape.graphics) {
				beginBitmapFill(bitmap, matrix, false, false);
				drawRoundRect(0, 0, width, height, radius, radius);
				endFill();
			}
			shape.x = width;
			shape.y = height;
			addChild(shape);
		}

	}

}