Problem when painting complex polygon (Polyygon, Ellipse or Rounded rect) in widget with WA_PaintOnScreen set to true

marievin

Hello,

I reproduce my problem on the Basic Drawing Sample where I just set the flag WA_PaintOnScreen to true for the RenderArea widget.

When I run the program throught an X Server, the widget is not properly repainted when another window is moved over it in the following conditions:

Deactivate Antialiasing
Select a complex polygon (for instance polygon)
Select a solid brush
Move a window over the RenderArea widget

You can see on the screenshot that the polygon is not properly painted

Note: QT_GRAPHICSSYSTEM is set to native

Any idea ?

Thank in advance,
Vincent

marievin