Two different methods of using QBrush with QPainter - why is only one working?

[EMKAH]

Thanks for your advice. I adapted the code according to your remarks, but I still need the call inside the timerEvent() method, otherwise the widget won't get updated.


EDIT: i finally got it. Thie problem was not the update() call but the way I called the setValue()-method.

I tried to call setValue() with ++_value or --_value. This of course manipulates _value directly before calling the method with the same new _value.

But my setValue() method begins with a check if the given integer parameter is different to the actual _value (because I want to emit a valueChanged() signal from that method). Of course, this will never be true, because of the direct manipulation of _value with ++ and --.

Anyway, thanks for you help!