<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="horizontal" backgroundColor="#333333" xmlns:tools="tools.*" creationComplete="init();" > <mx:Script> <!--[CDATA[ import mx.core.UIComponent; import mx.core.DragSource; import mx.events.DragEvent; import mx.managers.DragManager; [Embed(source="000.png")] private var imgsrc:Class; private function init():void { img1.source = imgsrc; img2.source = imgsrc; } /** * 开始拖拽 * */ private function dragHandler(event:MouseEvent):void { // 定义拖拽挂载数据源 var dsragSource = new DragSource(); // 定义拖拽图标(用于第二副图片的拖拽) var di:Image = new Image(); // 拖拽对象 var target:Image = event.currentTarget as Image; // 添加拖拽数据源数据 dsragSource.addData(target, "img"); dsragSource.addData(event.localX, "x"); dsragSource.addData(event.localY, "y"); // 拖拽图标 if (target.id == "img2") di.source = new Bitmap(getBitmapData(target.content)); else di = null; // 执行拖拽 DragManager.doDrag(target, dsragSource, event, di); } /** * 进入拖放区域 * */ private function dragEnterHandler(event:DragEvent):void { // 进入区域, 设置状态为允许拖放 if (event.dragSource.hasFormat("img")) DragManager.acceptDragDrop(event.target as UIComponent); } /** * 释放拖拽 * */ private function dragDropHandler(event:DragEvent):void { // 复制图片 var img:Image = new Image(); img.source = new Bitmap(getBitmapData(event.dragSource.dataForFormat("img") as DisplayObject)); // 处理图片防止位置 img.x = event.currentTarget.mouseX - (event.dragSource.dataForFormat("x") as Number); img.y = event.currentTarget.mouseY - (event.dragSource.dataForFormat("y") as Number); // 显示图片 event.currentTarget.addChild(img); } /** * 获取图片信息 * */ private function getBitmapData(target:DisplayObject):BitmapData { var res:BitmapData = new BitmapData(target.width, target.height); res.draw(target); return res; } ]]--> </mx:Script> <mx:VBox> <mx:Image id="img1" mouseDown="dragHandler(event);" /> <mx:Image id="img2" mouseDown="dragHandler(event);" /> <mx:Button label="Clear Images" click="testArea.removeAllChildren();" /> </mx:VBox> <mx:Canvas id="testArea" backgroundColor="#ffffff" width="100%" height="100%" dragEnter="dragEnterHandler(event);" dragDrop="dragDropHandler(event);" /> </mx:Application>
