[PyQt] QGLWidget.renderText problem
rasky at develer.com
Fri Sep 12 18:50:26 BST 2008
On 9/12/2008 1:32 PM, V. Armando Sole wrote:
> At 12:17 12/09/2008 +0200, Giovanni Bajo wrote:
>> On 9/12/2008 12:12 PM, V. Armando Sole wrote:
>>> QGLWidget.renderText gives me an OpenGL error for Qt versions >=
>>> 4.3.0 that prevents any further OpenGL output.
>> Those are Qt bugs, not PyQt nor PyOpenGL bugs. Some of them have
>> already been fixed and are in the process of being released. Check
>> Trolltech's task tracker about it.
> Wrong. It is the new implementation of QGLWidget.renderText() confusing
> PyOpenGL error checking:
> Just adding a method to the previous code solves the problem.
> if qt.qVersion() >= '4.3.0':
> def renderText(self, x, y, z, text, font):
> qt.QGLWidget.renderText(self, x, y, z, text, font)
This shows exactly that I am right and that this is a Qt bug. And it's
already been fixed, as I said. I know because I have fixed myself this
and other OpenGL compatibility bugs in Qt (specifically related to
renderText() (like any other Qt function) shouldn't return and leave a
GL error pending; this is the symptom you're seeing. The bug lies within
the renderText() implementation which does a mistake so that it
generates a GL error on specific video cards.
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