[PyQt] stopping tool button from staying depressed in D

[Hans-Peter Jansen]

On Tuesday 21 September 2010, 18:30:33 danny wrote:
> Howdy,
>
> I'm in progress dragging icons off a toolbar. I currently create
> QToolButtons and use addWidget to add them to the toolbar. I am starting
> the drag by connecting to the pressed even of the QToolButton, e.g.
>
> button.pressed.connect(self.startDrag)
>
> Life is good. I have a small visual artifact that the button now stays
> pressed for all eternity. The best I have been able to do is to modify
> startDrag
>
> def startDrag(self):
>   button.setDown(False)
>   ...
>
> I have also tried starting the drag by overloading mouseMoveEvent. The
> button still stays pressed, and I need to do a self.setDown(False).

Danny, show us your overload, or even better a minimum runnable example.

You should also catch the mousePressEvent and prevent the press from being 
delivered to the Qt event machinery, e.g. call event.ignore() on left 
clicks.

Consequently, you should start the drag yourself in the mouseMoveEvent, as 
the above might prevent button.pressed.connect() from working correctly..

Pete