How did they do the QtCreator "widget box"

[yoavmil]

I want to make a widget just like the "widget box", EX. where you can drag from all the widgets.
what widget is it made of?

[andre]

All the sources are there. What do they tell you?

[yoavmil]

it is hard to find it when you dont know exactly where to look?

[andre]

Start with the QtDesigner sources.

My guess is that it is a QTreeView (derived) widget, with a custom model providing the items representing the registered widget types.