[Qt-interest] QListView: Get indexes of visible items

[Arnold Krille]

Hi,

On Monday 27 April 2009 21:59:11 Ingomar Wesp wrote:
> I need to get the model indices for all items that are currently visible in
> a QListView (essentially the inverse of QAbstractItemView::
> visualRegionForSelection). I know there's an indexAt function, but I'm not
> comfortable with using it with the top left and bottom right viewport
> coordinates because of spacing between items.

Why not iterate over the coordinates from top-left to bottom-right in steps of 
10px? That gives you a limited number of calls to indexAt() and should still 
pick all items. Or you make the step-size depending on the base font size, 
then it should be independent of the actual size of the items...

But I would be very curious why you need to know the visible items at all?

Have fun,

Arnold
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