剪辑的类绑定

所谓类绑定剪辑,就当作为该剪辑写一个文档类,文档类中的this指向该剪辑.

 //

package  
{
    import flash.display.MovieClip;
    import flash.events.MouseEvent;
    /**
     * 
     * 所谓类绑定剪辑,就当作为该剪辑写一个文档类,文档类中的this指向该剪辑
     * @author chancidal
     */
    public class MyButtonBase extends MovieClip
    {
        //
        private var m_labels:Array = ["over", "down", "out"];
        //
        public function MyButtonBase() 
        {
            this.stop();
            init();
        }
        private function init():void {
            addEventListener(MouseEvent.MOUSE_DOWN, dragButton);
            addEventListener(MouseEvent.ROLL_OVER, rollOver);
            addEventListener(MouseEvent.ROLL_OUT, rollOut);
        }
        private function dragButton(evt:MouseEvent):void {
            this.parent.addChildAt(this, this.parent.numChildren - 1);
            this.startDrag();
            for (var i:int = 0; i < m_labels.length; i++) {
                if (m_labels[i] == "down") {
                    this.gotoAndStop("down");
                }
            }
            addEventListener(MouseEvent.MOUSE_UP, stopDragButton);
        }
        private function stopDragButton(evt:MouseEvent):void {
            this.stopDrag();
            for (var i:int = 0; i < m_labels.length; i++) {
                if (m_labels[i] == "over") {
                    this.gotoAndStop("over");
                }
            }
            removeEventListener(MouseEvent.MOUSE_UP, stopDragButton);
        }
        private function rollOver(evt:MouseEvent):void {
            for (var i:int = 0; i < m_labels.length; i++) {
                if (m_labels[i] == "over") {
                    this.gotoAndStop("over");
                }
            }
        }
        private function rollOut(evt:MouseEvent):void {
            for (var i:int = 0; i < m_labels.length; i++) {
                if (m_labels[i] == "out") {
                    this.gotoAndStop("out");
                }
            }
        }
    }

}

 Demo