I'm confused with the graphics view framework coordinate system. There is so much information about all kinds of conversions, relations, mappings etc. that I haven't been able to find out solution for my trivial problem.

The problem is: I want to draw my item so that it fills the view completely. How can I do this after I've scrolled the view? I don't want to use QGraphicsView::fitInView(), I just need to tell in my item's paint function that draw yourself and fill the whole view while doing it.