[Qt-interest] qwidget performance

[Konrad Rosenbaum]

On Tuesday 14 June 2011, Tomasz Grobelny wrote:
> 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).

If you really want to show a big grid of data, then QTableView is the normal 
way to go. You can assign custom widgets for editing through a customized 
delegate.


	Konrad
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