saveImgGroup的大小由里面的图片决定。
<s:Group top="75" width="1440" height="830" horizontalCenter="0">
<!--相片-->
<s:Group id="saveImgGroup" horizontalCenter="0" verticalCenter="0">
<s:BitmapImage id="signPhoto" maxWidth="1440" maxHeight="830" horizontalCenter="0"
scaleMode="letterbox" source="http://121.0.0.1/baozhi/2.png" verticalCenter="0"/>
<s:Group id="drawWords" width="{signPhoto.width}" height="{signPhoto.height}"
horizontalCenter="0" verticalCenter="0"/>
</s:Group>
</s:Group>
注:saveBitmapData=new BitmapData(saveImgGroup.width,saveImgGroup.height,true,0);
saveBitmapData.draw(saveImgGroup);
最后保存的图片的大小是由saveImgGroup.width,saveImgGroup.height决定的,而saveBitmapData.draw()会在saveImgGroup的左上角截取大小为
saveImgGroup.width,saveImgGroup.height的区域。
/**
*在线保存图片
* */
private var saveBitmapData:BitmapData;
private function saveBtnClickHandler(evt:MouseEvent):void
{
saveBitmapData=new BitmapData(saveImgGroup.width,saveImgGroup.height,true,0);
saveBitmapData.draw(saveImgGroup);
var imgByteArray:ByteArray=PNGEncoder.encode(saveBitmapData);
var file:File=new File("E:\PhotoAndSignature\signImg\100.png");
var fs:FileStream=new FileStream();
try
{
fs.open(file, FileMode.WRITE);
fs.writeBytes(imgByteArray);
fs.close();
}
catch (e:Error)
{
trace(e.message);
}
}