I just downloaded the 4.5tp1, built it and built my app against it.
I've got a QTreeView that uses a custom item delegate to customize the
rendering. This was working fine with the snapshots up through 09/11,
but with tp1 I have severe drawing problems, which seem to be clipping
related. If I stop using the custom item delegate, the clipping
problems go away.
I have worked around this by adding the following as the first line in
my custom item delegate's paint(...) method.
painter->setClipRect(option.rect);
I also have a similar a QAbstractScrollArea subclass. I have to
explicitly clip to the QAbstractScrollArea's content bounds as the
first thing in the paintEvent().
This is not a huge problem for me, as I obviously have a workaround,
but...well, now you know.
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