热区提示类

以前一直用kinglong写的toolTip类,挺好用的.但最近总出现问题,不是toolTip的错,应该是我使用不当:当有两帧时,每帧都需要热区提示,但是翻来翻去就会出错,一直很郁闷.所以就自己写了一个toolTipWindow.as效果肯定没有kinglong的toolTip.as好.只能暂时用着了,向大家学习中....
下在是类文件代码:

package 
{
 import flash.display.DisplayObject;
 import flash.display.MovieClip;
 import flash.display.Sprite;
 import flash.display.Graphics;
 import flash.text.TextField;
 import flash.text.TextFieldAutoSize;
 import flash.text.TextFormat;
 import flash.events.MouseEvent;
 import flash.events.Event;
 import flash.geom.Point;
 import flash.display.DisplayObjectContainer;
 
 /**
  * ...热区提示...
  * @author zkl
  * @time 2010-7-27
  * @QQ:344209679
  */
 public class toolTipWindow extends Sprite
 {
  private var _sprite:Sprite;
  private var _label:TextField;
  private var obj:DisplayObjectContainer;
  private var mc:DisplayObject;
  private var str:String;
  
     /**
     * ...构造函数
     * 参数:显示对象容器,显示对象,显示内容
  * 如:new toolTipWindow(this, titleTS, "我是中国人");
     */
  public function toolTipWindow(obj:DisplayObjectContainer,mc:DisplayObject,str:String):void
  {
   this.obj = obj;
      this.mc = mc;
   this.str = str;
   
   init();
  }
  private function init():void
  {
   drawRect();
   configListener(); 
  }
     /**
     * ...
     * 配置鼠标事件
     */
  private function configListener():void
  {
      mc.addEventListener(MouseEvent.MOUSE_OVER, mouseHandler);
      mc.addEventListener(MouseEvent.MOUSE_MOVE, mouseHandler);
   mc.addEventListener(MouseEvent.MOUSE_OUT, mouseHandler);
   mc.addEventListener(Event.REMOVED_FROM_STAGE, removeListener);
  }
     /**
     * ...
     * 鼠标事件监听
     */
  private function mouseHandler(e:MouseEvent):void
  {
   switch(e.type) {
    case MouseEvent.MOUSE_OVER:
    _sprite.x = obj.mouseX - 5;
    _sprite.y = obj.mouseY - _sprite.height - 10; 
    _sprite.visible = true;
    break;
    case MouseEvent.MOUSE_MOVE:
    
    _sprite.x = obj.mouseX - 5;
    _sprite.y = obj.mouseY - _sprite.height - 10; 
    break;
    case MouseEvent.MOUSE_OUT:
    _sprite.visible = false;
    break;
   }
  }
  
     /**
     * ...
     * 显示提示框
     */
  private function drawRect():void
  {
   _sprite = new Sprite;
   obj.addChild(_sprite);
   
      _label = new TextField; 
   _label.autoSize = TextFieldAutoSize.LEFT;
   _label.defaultTextFormat = new TextFormat("宋体", 14, 0x000000);
   _label.selectable = false;
   _label.multiline = false;
   _label.wordWrap = false;
   _label.text = str;
   _sprite.addChild(_label);
   _label.x = 5;
   _label.y = 2;
   
   var w:Number = 10 + _label.width;
   var h:Number = 4 + _label.height;
   
   _sprite.graphics.clear();
   _sprite.graphics.beginFill(0x000000, 0.4);
   _sprite.graphics.drawRoundRect(3, 3, w, h, 5, 5);    
   _sprite.graphics.moveTo(6, 3 + h);
   _sprite.graphics.lineTo(12, 3 + h);
   _sprite.graphics.lineTo(9, 8 + h);
   _sprite.graphics.lineTo(6, 3 + h);
   _sprite.graphics.endFill();
   _sprite.graphics.beginFill(0xFFFFCC);
   _sprite.graphics.drawRoundRect(0, 0, w, h, 5, 5);
   _sprite.graphics.moveTo(3, h);
   _sprite.graphics.lineTo(9, h);
   _sprite.graphics.lineTo(6, 5 + h);
   _sprite.graphics.lineTo(3, h);
   _sprite.graphics.endFill();
   
   _sprite.visible = false;
  }
     /**
     * ...
     * 删除监听
     */
  private function removeListener(e:Event):void
  {
      mc.removeEventListener(MouseEvent.MOUSE_OVER, mouseHandler);
      mc.removeEventListener(MouseEvent.MOUSE_MOVE, mouseHandler);
   mc.removeEventListener(MouseEvent.MOUSE_OUT, mouseHandler);
   mc.removeEventListener(Event.REMOVED_FROM_STAGE, removeListener);
   
   _sprite.visible = false;
   
   _sprite.removeChild(_label);
   
   obj = null;
   mc = null;
   str = null;
  }
 }
 
}