[Qt-interest] qwidget performance

[Tomasz Grobelny]

I was doing a test where I create a lot of widgets (I used QPushButtons as an 
example) in one window (inside QScrollArea; only tiny portion of the created 
widgets are visible at any given time). As long as there are under 10000 
widgets the creation time is acceptable but then is starts to grow quite 
quickly. Creating 1000000 widgets is virtually impossible. Is there any way to 
improve performance in this case (except from dropping qwidgets in favor of 
drawing rectangles manually).
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Regards,
Tomasz Grobelny