Hello,

I've got a QGraphicsView that is showing many objects, and I'm experimenting with using the rubber band to act as a zoom. However it is quite slow and laggy. I've implemented my own rubber band rectangle in QGraphicsView::drawForeground and it is also quite slow when there are lots of objects.

Is it possible to do something like have a transparent QPainter widget ontop of the QGraphicsView widget where I can draw overlay items like a rubberband that won't slow down when there are lots of objects in the view? Or am I missing something?

Cheers,

Bob