QGraphicsScene and QGraphicsWidget (reusable and embeddable)

[wysota]

I've put it in the title because it's very important: "(reusable and embeddable)" - the grid should be a reusable widget, easy to embed into any scene, even in large number (one scene contains more "grids").

So you don't want a widget but rather an item. Or maybe subclasses of QGraphicsLayout.

The question is just: What should MyGrid subclass, such that I can reuse as much as possible of the features already existing qt classes provide, to let the user (the real game developer) easily create and manipulate several MyGrid instances as his game requires.

QGraphicsLayout or one of its subclasses, most probably. Although I less and less see what would such grid be useful for and how would it differ from QGraphicsGridLayout.