首先定义组件，画矩形，和直线的组件。然后用下列应用程序执行。

点击此处例子下载

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="horizontal"
 xmlns:paper="com.acj.containers.*" width="600" height="450"
 backgroundColor="#FFFFFF" 
 borderColor="#FFFFFF" viewSourceURL="srcview/index.html">
 <mx:Script>
  <![CDATA[
   import com.acj.paperClasses.RectangleTool;
   import com.acj.paperClasses.LineTool;
   import com.acj.paperClasses.DrawingTool;
   
   private var selectedTool:DrawingTool;

   private function lineToolClicked(event:Event):void{
    btnRectangleTool.selected = !btnLineTool.selected;
    blankPaperWrapper.selectedTool = com.acj.paperClasses.LineTool;
   }
   
   private function rectangleToolClicked(event:Event):void{
    btnLineTool.selected = !btnRectangleTool.selected;
    blankPaperWrapper.selectedTool = com.acj.paperClasses.RectangleTool;
   }
  ]]>
 </mx:Script>

 
 <paper:BlankPaperWrapper id="blankPaperWrapper" width="100%" height="100%" />
 <mx:HBox width="100"  x="611" y="10">
  <mx:Button id="btnLineTool" icon="@Embed('assets/LineTool.png')" click="lineToolClicked(event)" toggle="true"/>
  <mx:Button id="btnRectangleTool" icon="@Embed('assets/RectangleTool.png')" click="rectangleToolClicked(event)" toggle="true"/>
 </mx:HBox>
 <mx:Text x="611" y="58" text="画图基本例子" width="157" height="154" fontSize="16"/>

</mx:Application>