[Qt-interest] QRegion with rounded rect

[Andre Haupt]

On Thu, Jun 11, 2009 at 09:20:18AM +0200, Samuel Rødal wrote:
> Andre Haupt wrote:
>> Hi Samuel,
>>
[snip]
>> In the meanwhile i found a solution that works for me, but i am not sure
>> that my approach is "the right thing (tm)" to achieve such a glass effect.
>>
>> Should i use QPainterPath instead to construct the shape and then do a QPainter::fillPath()?
>>
>> regards,
>>
>> Andre
>
> Yep, I would use QPainter::fillPath() for that. Potentially since you  
> have two shapes that you want to combine (the rounded rect and the  
> ellipse) you might consider using clip for one of them and  
> QPainter::fillPath() for the other. However, if in this case one of the  
> shape is fully contained in the other you might add them both to the  
> same path, thus utilizing the Qt::OddEvenFill fill rule to mask out the  
> inner ellipse. If possible, this should be the most optimal way.
The ellipse is not fully contained in the rounded rect.

Thank you very much, Samuel

Regards,

Andre