Can I use multiple ItemRenderer with one LineSeries? - apache-flex

Question

Currently I have created below class which extends ItemRenderer to add labels for all data points in Line Chart.
package lib
{
public class LineChartLabelRenderer extends UIComponent implements IDataRenderer, IFactory
{
private var _label:Label;
public var solidColor:SolidColor;
public function newInstance():*
{
return new LineChartLabelRenderer();
}
public function LineChartLabelRenderer():void
{
super();
_label = new Label();
addChild(_label);
_label.setStyle("color",0x000000);
_label.setStyle("fontSize",9);
}
private var _chartItem:ChartItem;
public function get data():Object
{
return _chartItem;
}
public function set data(value:Object):void
{
if (_chartItem == value){
return;
}
_chartItem = ChartItem(value);
if(_chartItem != null){
_label.text = LineSeriesItem(_chartItem).yValue.toString();
}
}
override protected function updateDisplayList(unscaledWidth:Number,unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth, unscaledHeight);
var ls:LineSeries = _chartItem.element as LineSeries;
solidColor = new SolidColor(ls.getStyle("fill"));
_label.setActualSize(_label.getExplicitOrMeasuredWidth(),20);
_label.move(unscaledWidth - _label.getExplicitOrMeasuredWidth() / 2 , this.unscaledHeight - _label.getExplicitOrMeasuredHeight() - 5);
}
}
}
It works well. However since the LineSeries may already be set with other ItemRenderer such as CircleItemRenderer or BoxItemRenderer. I found no where to let me set multiple ItemRender with one LineSeries. I want to know what the best way is to do this.

Answer 1

Thanks to Sunil D.
Finally I create extended ItemRenderer like below
public class LSLabelCircleItemRenderer extends CircleItemRenderer
{
private var _label:Label;
public function LSLabelCircleItemRenderer():void
{
super();
_label = new Label();
}
override protected function updateDisplayList(unscaledWidth:Number,unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth, unscaledHeight);
if(data != null){
var ls:LineSeries = ChartItem(data).element as LineSeries;
label.text = LineSeriesItem(data).yValue.toString();
skin.parent.addChild(label);
label.setStyle("color",ls.getStyle("fill"));
label.move(skin.x - label.getExplicitOrMeasuredWidth() / 5,skin.y - label.getExplicitOrMeasuredHeight());
}
}
}