[Qt-interest] How to set an effect on a opening widget

[Ambre RIPPE]

  I was wondering whether this is possible to add any displaying effect 
on a QWidget ? I mean, when you open or close the widget, to have an 
effect at this time, like some kind of zoom where the widget grows up 
till its max size.

I tried with a QPropertyAnimation on the size from (1,1) to the max, but 
this is not a so beautiful effect...

Any way to do something like that ?

Thanks,

Ambre