Help with qt4 qgraphicsview

I've done lots of stuff with pygtk however i'm deciding to learn pyqt, im stuck at the qgraphicsview i have absolutley no idea how to get signals from the items i place on the graphics view, primarily开发者_StackOverflow mouse events.How do i get the mouse events from idividual items in a scene?

QGraphicsItem is not a QObject and cannot send signals, nor receive slots. Instead, you must handle events. You can do that either through an event filter, sub-classing the view or scene to intercept events or simply sub-classing the items themselves and implementing the event handling functions (see protected member functions in the documentation). Perhaps this example can be of interest: http://doc.trolltech.com/4.6/graphicsview-diagramscene.html .

Right after you create an item, connect the signals you want from it to the instance of the widget that contains it.

Another option is to just give up using signals and have your instance of QGraphicItem directly call a method of its parent by keeping a reference to it. This is less pretty than using signals but ultimately, it gets the job done.