Quote Originally Posted by psih128 View Post
Yes, I'm after graphics, but interactive graphics, plus editable text.
That's another argument to use graphics view.

Basically I'm working on kind of a flow-chart editor. I believe it's quite complicated to implement it solely using QGraphicsView..
On the contrary

But still my question about QAbstractModelView is open. How complicated is it to subclass it? I looked at the Chart example, but painting in the example is implemented directly in the View paintEvent, but I want to draw using delegates.
Painting items using delegates is easy. The most complicated things are mapping between indexes and their positions on screen. Take a look at my custom view: http://www.wysota.eu.org/charts.html. It doesn't use delegates per se but a very similar concept.