2012-08-15 58 views
0

我嘗試捕獲渲染的SWF文件(圖表)的屏幕截圖,並使用以下代碼將其轉換爲圖像。但是,輸出圖像僅包含實際圖表的一部分。它沒有捕獲整個渲染的圖表......請幫助我......提前致謝。AS3 - ImageSnapshot - 不拍攝整個組件的快照

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" 
    layout="absolute" 
    minWidth="955" minHeight="600" 
    backgroundColor="white" viewSourceURL="srcview/index.html" initialize="initApp()"> 

<mx:Script> 
    <![CDATA[ 
     import mx.core.IUIComponent; 
     import mx.graphics.ImageSnapshot; 
     import mx.graphics.codec.PNGEncoder; 
     import flash.net.FileReference; 
     import mx.events.CloseEvent; 
     import mx.events.FlexEvent; 
     import mx.controls.Alert; 


     private var image:ImageSnapshot = new ImageSnapshot; 
     private var dataXML:String="<chart labelDisplay='Normal' xAxisName='' yAxisName='' pyAxisName='' syAxisName='' rotateYAxisName='' caption='' subCaption='' baseFont='Regular' baseFontSize='10' baseFontColor='' decimalPrecision='' thousandSeparator=',' decimalSeparator='.' numberPrefix='' numberSuffix='' sNumberPrefix='' sNumberSuffix='' bgColor='' showBorder='1' YAxisMinValue='' YAxisMaxValue='' pyAxisMinValue='' pyAxisMaxValue='' syAxisMinValue='' syAxisMaxValue='' showLabels='1' showValues='1' showLegend='Y' legendPosition='Right'><categories><category label='Unmapped'/><category label='FY 2002 - 03'/><category label='FY 2003 - 04'/><category label='FY 2004 - 05'/><category label='FY 2005 - 06'/><category label='FY 2006 - 07'/><category label='FY 2007 - 08'/><category label='FY 2008 - 09'/><category label='FY 2009 - 10'/><category label='FY 2010 - 11'/></categories><dataset seriesName='Base Amount'><set value='-65770'/><set value='71461203'/><set value='66548822'/><set value='87063456'/><set value='261797187'/><set value='282962118'/><set value='3830823027'/><set value='16001588683'/><set value='22514728943'/><set value='23822586701'/></dataset></chart>"; 
      private function initApp():void 
      { 
      chart_1.source="MSCombi2D.swf?chartWidth=100&chartHeight=100&registerWithJS=1&dataXML="+dataXML; 
      } 
     private function takeSnapshot(source:IBitmapDrawable):void { 
      // var imageSnap:ImageSnapshot = ImageSnapshot.captureImage(source); 
      // var imageByteArray:ByteArray = imageSnap.data as ByteArray; 
      // var str:String = imageByteArray. 
      // swfLoader.load(imageByteArray); 
      var imageBitmapData:BitmapData = ImageSnapshot.captureBitmapData(source); 
      swfLoader.source = new Bitmap(imageBitmapData); 


      // take a screen capture 
      // image = ImageSnapshot.captureImage(source, 72, new PNGEncoder(), false); 
      // var fileSave:FileReference = new FileReference(); 
      //  fileSave.save(image.data, "saveImage.png"); 
     } 

    ]]> 
</mx:Script> 



<mx:ApplicationControlBar dock="true"> 
    <mx:Button label="Take snapshot of DataGrid" 
      click="takeSnapshot(chart_1);" /> 
</mx:ApplicationControlBar> 

<mx:HBox> 
    <mx:SWFLoader id="chart_1" /> 

    <mx:SWFLoader id="swfLoader"> 
     <mx:filters> 
      <mx:DropShadowFilter /> 
     </mx:filters> 
    </mx:SWFLoader> 
</mx:HBox> 

回答

0

我得到了答案......我改變了代碼功能 「takeSnapshot」 如下:

private function takeSnapshot(source:IBitmapDrawable):void 
     {       
      var bitmapData:BitmapData = new BitmapData(1350, 700); 
      bitmapData.draw(IBitmapDrawable(chart_1)); 
      var swfBitmap:Bitmap = new Bitmap(bitmapData);    
      var jpg:JPEGEncoder = new JPEGEncoder(100); 
      var ba:ByteArray = jpg.encode(swfBitmap.bitmapData); 
      var fileSave:FileReference = new FileReference(); 
      fileSave.save(ba, "saveImage.jpg"); 
     }