Overriding QGraphicsView paintEvent function in Qt Designer

Question

Im writing some simple python application using PyQt and QtDesigner. I've designed mainView in designer which has a QGraphicsView and some buttons inside. My question is, how should I draw shapes on that QGraphicsView?

Without QtDesigner, I would have created class extending QGraphicsView and overriden its paintEvent() method. However, Designer generates single Ui_MainWindow class, so I can't set it's QGraphicsView field to my specific subclass.

Answer 1

You'll want to promote the QGraphicsView to your own class that subclasses QGraphicsView. To learn how to promote widgtes in Qt Designer, see this SO post: How do I use promote to in Qt Designer in pyqt4?

In your subclass, you can override the paintEvent method is usual.