mustella/tests/gumbo/layout/TileLayout/SWFs/Assets/VirtualizationItemRendererDataAware.mxml

<?xml version="1.0" encoding="utf-8"?>
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<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark" layer.hovered="2" layer.normal="1" autoDrawBackground="false">
	<fx:Script>
		<![CDATA[
			import spark.components.DataGroup;
		
			override public function set data(value:Object):void {
				super.data = value;
				
				if(value == null){
					// the guts behind virtualization will set the data to null sometimes
					return;
				}
				
				var numItems:int =  (this.owner as DataGroup).dataProvider.length;
				
				lbl.text = "item " + data.myItemIndex + " of " + numItems;
				
				if (value.majorAxis == "vertical"){
					// majorSize is height
					
					this.width = value.minorSize;
					this.height = value.majorSize;
				
				} else if (value.majorAxis == "horizontal") {
					// majorSize is width
					this.width = value.majorSize;
					this.height = value.minorSize;
					lbl.rotation = 90;
				
				} else {
					throw new Error('invalid axis');
				}
				
			}
		]]>
	</fx:Script>

    <s:states>
        <mx:State name="normal"/>          
        <mx:State name="hovered"/>
        <mx:State name="selected"/>
    </s:states>
    
    <s:Rect top="0" left="0" right="0" bottom="0">
        <s:fill>
            <mx:SolidColor color="0xA8C6EE"
                        color.hovered="0xCEDBEF"
                        color.selected="0xCCCCCC" />
        </s:fill>
    </s:Rect>
	
    <mx:Label id="lbl" top="1" left="1" />

</s:ItemRenderer>