flex4中 Bit地图Fill 的使用

flex4中 BitmapFill 的使用
BitmapFill 动态加载图片

private function getBorderBackground(url:String):void
{
var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.CO MPLETE, handleLoadComplete);
loader.load( new URLRequest(url) );
}

private function handleLoadComplete( evt:Event ):void
{
var bmp:Bitmap = ( evt.target as LoaderInfo ).content as Bitmap;
bgImage.source = bmp;
}


<s:Rect>
<s:fill>
<s:BitmapFill id="bgImage" fillMode="{BitmapFillMode.REPEAT}" rotation="-45" />
</s:fill>
</s:Rect>

Flex 4中如何通过BitmapFill和LinearGradient，给Panel设置bitmap填充背景色

<s:Panel id="pnl"

title="Spark Panel title"

width="320" height="240"

horizontalCenter="0" verticalCenter="0">

<s:Rect width="100%" height="100%">

<s:fill>

<s:BitmapFill source="@Embed('assets/pattern_140.gif')" />

</s:fill>

</s:Rect>

<s:Rect width="100%" height="100%">

<s:fill>

<s:LinearGradient rotation="{rotationSlider.value}">

<s:GradientEntry color="white"

alpha="0.0"

ratio="0.0" />

<s:GradientEntry color="#F0EBD2"

alpha="1.0"

ratio="{ratioSlider.value}" />

</s:LinearGradient>

</s:fill>

</s:Rect>

<s:TextArea id="textArea"

verticalScrollPolicy="on"

left="20" right="20"

top="20" bottom="20">

<s:text>The quick brown fox jumps over the lazy dog.</s:text>

</s:TextArea>

</s:Panel>