QGraphicsView - zoom out using the right mouse button

[dbrmik]

Hi

I have a QGraphicsView subclass and have implemented rubberband 'zoom in' using the left mouse button, which works fine. I would like to implement 'zoom out' using the right mouse button. (similar in functionality to the Qwt Plot Zoomer)

What is the best way of achieving this?

Thanks

[wysota]

Override mouseReleaseEvent() for the view, check for the proper button and zoom out. You can keep a zoom history somewhere in the view so that you can "undo" the last zoom.