Showstopper: Redrawing problems with list views in KMail

[Simon Hausmann]

On Sat, Nov 09, 2002 at 03:06:26PM +0100, Ingo Klöcker wrote:
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> On Friday 08 November 2002 20:52, Ingo Klöcker wrote:
> > as most KMail users who have an up-to-date qt-copy will have already
> > noticed we currently have serious redrawing problems in KMail. Both
> > list views (the folder pane and the header pane) are affected. As we
> > didn't change anything in those two list views in the last 15 days
> > I'm almost 100% certain that those problems are caused by a bug in
> > QListView (or a parent class). This bug must have been introduced
> > somewhen between Qt 3.1 beta2 and Qt 3.1 rc1 (IIRC). Sorry for not
> > having more information. I will try to find the problem by testing
> > some older qlistview.cpp versions from qt-copy.
> >
> > Here the problem occurs most of the time after moving some messages
> > per drag&drop to another folder.
> 
> It seems the repainting problem after d'n'd'ing message to other folders 
> only occurs when one didn't disable the popup which is shown after 
> dragging a message to a folder.
> 
> I think I have found the change which causes this problem. Between RC1 
> and RC2 some code has been added to QEventLoop with the intention to 
> speed up the event loop (?). This doesn't seem to work correctly. The 
> attached patch reverts this change. At least here I couldn't reproduce 
> the repainting bug anymore after I reverted this change.
> 
> Please apply the patch to your up-to-date qt-copy and test whether it 
> also fixes the other listview related bugs.

Please don't revert that patch (i.e. apply it) , as it fixes #49896
(see description for details what the patch fixed, etc. ) .

Simon