[Qt-interest] Model/View speed of Models with many many items and item changes

[Arnold Krille]

On Saturday 13 June 2009 11:08:58 Sean Harmer wrote:
> On Saturday 13 Jun 2009 09:47:21 Arnold Krille wrote:
> > On Saturday 13 June 2009 01:09:04 RZ wrote:
> > > But the block signals effect was quite overwhelming and sufficient - so
> > > I stopped optimizing everything else ;-)
> > As far as I know this means all the update signals are then send
> > afterwards. Which mean after changing 10.000 data points, instead of a
> > continuous stream of 10.000 dataChanged(index) signals, you will get them
> > all after the signals are unblocked again.
> I don't think that this is true. Blocked signals just never get emitted
> (except for the destroyed() signal).

Then its even _really_ bad to block signals upon changing data, because then 
the gui doesn't get a single signal that the values changed...

Arnold
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