Should QGraphicsItem::boundingRect() include child bounding rects?

Question

Googling suggests that it should.

But the dragdroprobot example implementation (on the parent Robot object) suggests not:

QRectF Robot::boundingRect(         


        

Answer 1

Under normal usage the children of your QGraphicsItem are contained within its bounding rect, but depending on your implementation I don't believe that this is required.

If you need the bounding rect of an item's children you can simply use

QGraphicsItem::childrenBoundingRect();