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Flex自定义右键菜单-2实现自定义菜单

Posted on 2011-11-29 16:35 oathleo 阅读(1455) 评论(0)  编辑  收藏 所属分类: Flex
实现第一步,屏蔽默认菜单后:
http://www.blogjava.net/oathleo/archive/2011/11/28/365009.html
接下来就是实现自定义菜单了

先看结果:


就实现了两层,没有考虑多层菜单,菜单项用简单的button实现,感觉还行

主要的代码如下:
        private var titleWindow:Group;
        
private var pointNameGroupMenu:VGroup;
        
private var secondMenu:VGroup;
        
        
public function hiddenPopupMenu():void{
            
if(titleWindow != null){
                PopUpManager.removePopUp(titleWindow);
                pointNameGroupMenu 
= null;
                secondMenu 
= null;
            }
        }
        
private function showPopupMenu(allInterestPointNames:HashSet,physical_x:int,physical_y:int):void {
             
if(allInterestPointNames.size == 1){
                 titleWindow 
= prepareDetailMenu(physical_x,physical_y);
             }
else{
                 titleWindow 
= new Group();   
                 titleWindow.x 
= physical_x;
                 titleWindow.y 
= physical_y;
                 
                 pointNameGroupMenu 
= new VGroup();   
                 pointNameGroupMenu.gap 
= 0;
                 pointNameGroupMenu.horizontalAlign 
= "contentJustify";
                 
                 titleWindow.addElement(pointNameGroupMenu);
                 allInterestPointNames.forEach(function(_node:String):
void{
                     var _point_name:Button 
= new Button();
                     _point_name.label 
= _node;
                     pointNameGroupMenu.addElement(_point_name);
                     _point_name.addEventListener(MouseEvent.MOUSE_OVER,showSecondMenu);
                 });
             }
             PopUpManager.addPopUp(titleWindow, viewer, 
false);   
        }
        
        
private function prepareDetailMenu(_x:int,_y:int):VGroup{
            var detailGroup:VGroup 
= new VGroup();   
            detailGroup.gap 
= 0;
            detailGroup.horizontalAlign 
= "contentJustify";
            detailGroup.x 
= _x;
            detailGroup.y 
= _y;
            
            var _button_point_info:Button 
= new Button();
            _button_point_info.label 
= ResourceUtil.getString("gview_popup_pointinfo");
            detailGroup.addElement(_button_point_info);
            
            var _button_point_trend:Button 
= new Button();
            _button_point_trend.label 
= ResourceUtil.getString("gview_popup_trend");
            detailGroup.addElement(_button_point_trend);
            
            
return detailGroup;
        }
        
        
private function showSecondMenu(evt:MouseEvent):void {
            var _evt_target:Button 
= Button(evt.target);
            var _index:
int = pointNameGroupMenu.getChildIndex(_evt_target);
            
if(secondMenu == null){
                secondMenu 
= prepareDetailMenu(pointNameGroupMenu.measuredWidth,_evt_target.height * _index);
                titleWindow.addElement(secondMenu);
            }
else{
                secondMenu.y 
= _evt_target.height * _index;
            }
        }


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