I have such problem: on custom QGraphicsView I add QGraphicsScene and put to the screen multiple custom items such that I expect my QGraphicsView scolls to see all the items, but they does not. I set ScrollBarAlwaysOn. I see scrollbars, but they doesn't updated. The same set QTreeView does update on scroll, but QGraphicsView doesn't. Maybe to do something with viewport() ? How to call setWidgetResizable(true) on QGraphicsView?.See video example attached:
Please hint how to make custom QGraphicsVIew scrollable as in 40000 chips Qt demo for example...
for example, in this video it is depicted how the QGraphicsView moves horizontally, but it doesn't move vertically, disregards, that there are several items downmost.
What are the reasons ?