[Solved] Dragging a QGraphicsItem over another is distorting the other QGraphicsItem's color

[amban]

Hi.
I have implemented a QGraphicsRectItem inside a QGraphicsPolygonItem. The QGraphicsRectItem item displays a color.
When i slide one QGraphicsPolygonItem over the other, the color is getting distorted and becoming white(default color of it's parent i.e. QGraphicsPolygonItem)

I have implemented following -
@
void DiagramItem::paint( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget )
{
……

if (option->state & QStyle::State_Selected)
{

…..
scene()->update();
}
}
@

where DiagramItem is a subclass of QGraphicsPolygonItem.
This tremendously increases my CPU utilization....

What is a probable solution to this problem ?

Thanks.

[Asperamanca]

I don't really see how your code snippet relates to your problem. Maybe you could post a more complete code sample?

I find it interesting that you call scene()->update(); within paint - couldn't that cause the CPU utilization?

[amban]

I recognized my error. I created a public function which mocks functionality of paint() in QGraphicsRectItem and then call the dummy paint() from QGraphicsPolygonItem.