Have you tried using an item renderer?
--- In [email protected], "csmarvz" <csma...@...> wrote:
>
> Hi,
>
> I have to color the nodes shown in my adg. The code below do the job but
> the performances insanely decrease. Any idea how to improve it please?
>
> Best regards,
>
> Henry
>
> override protected function drawRowBackground(s:Sprite, rowIndex:int,
>
> y:Number, height:Number, color:uint,
> dataIndex:int):void
> {
> //default background alpha
> var alpha:Number = 1.0;
> if (dataProvider is HierarchicalCollectionView)
> {
>
> var cursor:IViewCursor =
> dataProvider.createCursor();
> var index:int=0;
> // move on the current row
> while (index < dataIndex)
> {
> index++;
> cursor.moveNext();
> }
> // if the current row is a node, then set the
> color
> // and the background alpha (the deeper, the
> darker)
>
> if(dataProvider.source.canHaveChildren(cursor.current)){
> color = 0x25e16d;
> alpha =
> dataProvider.getNodeDepth(cursor.current) / 10;
> if (alpha > 1) alpha = 1;
> }
> }
>
> var background:Shape;
> if (rowIndex < s.numChildren)
> {
> background = Shape(s.getChildAt(rowIndex));
> }
> else
> {
> background = new FlexShape();
> background.name = "background";
> s.addChild(background);
> }
>
> background.y = y;
>
> // Height is usually as tall is the items in the row,
> but not if
> // it would extend below the bottom of listContent
> var height:Number = Math.min(height,
> listContent.height -
> y);
>
> var displayWidth:int = unscaledWidth -
> viewMetrics.right - viewMetrics.left;
> var g:Graphics = background.graphics;
> g.clear();
> g.beginFill(color, alpha);
> g.drawRect(0, 0, displayWidth, height);
> g.endFill();
> }
>
