package {
import flash.display.Sprite;
import flash.events.MouseEvent;
[SWF(width=550, height=400)]
public class Main extends Sprite {
private var _canvas:Sprite = new Sprite();
public function Main() {
_canvas
_canvas.graphics.beginFill(0xF0F0F0);
_canvas.graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
_canvas.graphics.endFill();
_canvas.graphics.lineStyle(2, 0x000000);
addChild(_canvas);
_canvas.addEventListener(MouseEvent.MOUSE_DOWN, onCanvasMouseDown);
_canvas.addEventListener(MouseEvent.MOUSE_UP, onCanvasMouseUp);
}
private function onCanvasMouseDown(event:MouseEvent):void {
_canvas.graphics.moveTo(event.localX, event.localY);
_canvas.addEventListener(MouseEvent.MOUSE_MOVE, onCanvasMouseMove);
}
private function onCanvasMouseMove(event:MouseEvent):void {
_canvas.graphics.lineTo(event.localX, event.localY);
event.updateAfterEvent();
}
private function onCanvasMouseUp(event:MouseEvent):void {
_canvas.graphics.lineTo(event.localX, event.localY);
_canvas.removeEventListener(MouseEvent.MOUSE_MOVE, onCanvasMouseMove);
}
}
}
|