I'm attempting to create a widget which is half way between QGLWidget and
Qt3D's QGLView - I'd like to be able to utilise the rendering functions of
QGLBuilder/QGLPainter/etc. from the Qt3D library but I'd rather not be
restricted to a window - I want to be able to draw to widgets and to shift
these around in window layouts.
For the most part I've been copying functions from the QGLView and merging them
into a QGLWidget subclass - I have a QGLCamera set up for use, and when
initializeGL()/paintGL() are called from QGLWidget I use a QGLPainter to call
more specific initializeGL(QPainter*) and paintGL(QPainter*) functions like
QGLView does. However, I cannot push the widget's surface onto the QGLPainter
as I don't seem to be able to get a surface from the QGLWidget to begin with.
voidOpenGLWidget::paintGL()
{
//Paintthescenecontents.
QGLPainterpainter();
painter.begin();
painter.pushSurface(/*Somesurfaceneedstogohere!*/);
painter.setEye(QGL::NoEye);
earlyPaintGL(&painter);
painter.setCamera(camera());
paintGL(&painter);
painter.popSurface();
}
The QGLPainter documentation is not very helpful as the description is just
"Lots TBD". Can anyone tell me why it's not straightforward to use a QGLPainter
on a QGLWidget? Is there any way to get around it?_______________________________________________
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