[Qt-interest] Funny Bug in Qt Designer with Graphicssystem OpenGL

[Oliver.Knoll at comit.ch]

On 2011-01-15 Thiago Thiago Macieira wrote:

> On Saturday, 15 de January de 2011 02:26:30 Philipp Berger wrote:
>> Hi folks,
>> 
>> I was working on a project and started the Qt Designer from Visual 
>> Studio 2010 - and the complete display was reversed, a screenshot is 
>> attached. It looks very cool :)
> 
> OpenGL coordinates start from the bottom left, instead of the usual 
> top-left screen coordinates. So we usually must multiply the Y axis by -1.

Might be related: just recently I observed the same behaviour on Mac with PaintEngine "Raster", but only after going "full screen" (and back): issue reported here: http://bugreports.qt.nokia.com/browse/QTBUG-16590

You might want to add the screenshots and information there as well (in case the OpenGL and Raster paint engines share some common code). Or create a new issue (maybe better) and reference to this one.

Cheers, Oliver
--
Oliver Knoll
Dipl. Informatik-Ing. ETH
COMIT AG - ++41 79 520 95 22