How to prevent QGraphicsView from re centering every time an item is added to the scene

[MadMan27]

Normally, when you add a new item to the scene, the view moves to the very center of all the items on the scene. How can I prevent this? In other words, I don't want the view to change at all when a new item is added to the scene?

Thanks in advance!

[Asperamanca]

Maybe this is connected to the sceneRect: Unless you set the sceneRect explicitly, it is automatically expanded every time you add an item.