QGraphicsScene/QGraphicsView is selecting only one item

[SixDegrees]

I would rather show the selection visually in the scene than using qDebug(). It might be easier that way to see what really happens.

Modify your item's paint method to use the isSelected() setting to determine, for example, the outline color.

[jjkrol]

The selection is also visible, and it stays on the first item I clicked. It doesn't also depend on the stack order - whichever item I click first, it stays selected all the time.