GraphicsView / ModelView Integration ???

[Brandybuck]

Graphics view and Model/View are conceptually similar, but implemented very differently. However, there is no reason you cannot write a QAbstractIemView that uses QGraphicsScene/View for visualization. It would be a considerable effort, but the results could be very nice.

Alternatively, since QAbstractItemModel is merely a wrapper around the underlying data, you can always have the QGraphicsScene access that data directly, bypassing model/view.

[stefkeB]

Any hints or tips on the current approach in your implementation?

I was thinking the same thing for a computer-aided design application: a MVC framework for the data, but at the same time, multiple representations (treeview, diagram using GraphicsView, regular 3D view using OpenGL etc...).

Choose one? Combine both?