Painter 2

@author Saqoosha

by Saqoosha 10 May 2013

• Related works: 1
Embed

/**
 * Copyright Saqoosha ( http://wonderfl.net/user/Saqoosha )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/onHS
 */

package
{
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.Shape;
    import flash.display.Sprite;
    import flash.display.StageScaleMode;
    import flash.events.MouseEvent;
    import flash.geom.Point;

    /**
     * @author Saqoosha
     */
    [SWF(backgroundColor="#000000", frameRate="60", width="475", height="475")]
    public class Painter2 extends Sprite
    {
        private var _canvasData:BitmapData = new BitmapData(475, 475, false, 0xffffff);
        private var _canvas:Bitmap = new Bitmap(_canvasData);
        private var _stroke:Shape = new Shape();
        private var _prev:Point = new Point();

        public function Painter2()
        {
            stage.scaleMode = StageScaleMode.NO_SCALE;
            stage.addEventListener(MouseEvent.MOUSE_DOWN, _mouseDownHandler);
            addChild(_canvas);
        }

        private function _mouseDownHandler(event:MouseEvent):void
        {
            stage.addEventListener(MouseEvent.MOUSE_MOVE, _mouseMoveHandler);
            stage.addEventListener(MouseEvent.MOUSE_UP, _mouseUpHandler);
            _prev.x = event.stageX;
            _prev.y = event.stageY;
        }

        private function _mouseMoveHandler(event:MouseEvent):void
        {
            _stroke.graphics.clear();
            _stroke.graphics.lineStyle(5, 0xff0000, 0.5);
            _stroke.graphics.moveTo(_prev.x, _prev.y);
            _stroke.graphics.lineTo(event.stageX, event.stageY);
            _canvasData.draw(_stroke);
            
            _prev.x = event.stageX;
            _prev.y = event.stageY;
        }

        private function _mouseUpHandler(event:MouseEvent):void
        {
            stage.removeEventListener(MouseEvent.MOUSE_MOVE, _mouseMoveHandler);
            stage.removeEventListener(MouseEvent.MOUSE_UP, _mouseUpHandler);
        }
    }
}