テキストをビットマップでドロー

/**
 * Copyright curvedstraightline ( http://wonderfl.net/user/curvedstraightline )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/n9Ob
 */

package {
    import flash.display.Sprite;
    import flash.display.BitmapData;
    import flash.display.Bitmap;
    import flash.text.TextField;
    import flash.text.TextFieldType;
    import flash.text.TextFormat;
    public class FlashTest extends Sprite {
    		public var _bmd:BitmapData;
    		public var _bp:Bitmap;
    		public var _txt:TextField;
        public function FlashTest() {
            _bmd = new BitmapData(
            		stage.stageWidth,
            		stage.stageHeight,
            		false,
            		0x000000
            );
            _bp = new Bitmap(_bmd);
            addChild(_bp);
            
            _txt = new TextField();
            _txt.type = TextFieldType.DYNAMIC;
            _txt.textColor = 0xffffff;
            _txt.text = "test";
            _txt.setTextFormat(new TextFormat("_self",48));
            //addChild(_txt);
            drawText();
        }
        public function drawText():void{
        		_bmd.draw(_txt);
        		//_bmd.width = 400;
        }
    }
}