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List:       kde-bugs-dist
Subject:    [Bug 76107] Flicker in plastik and dotnet scrollbar
From:       Sandro Giessl <ceebx () users ! sourceforge ! net>
Date:       2004-03-14 0:46:34
Message-ID: 20040314004634.9281.qmail () ktown ! kde ! org
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http://bugs.kde.org/show_bug.cgi?id=76107      




------- Additional Comments From ceebx users sourceforge net  2004-03-14 01:46 -------
> ------- Additional Comments From clee kde org  2004-03-14 01:01
> ------- I can't reproduce this on my system. Can you go into a little
> more detail? Version of Qt, X server, video card? I'd like to know
> how to reproduce this as I haven't ever seen it, but several users
> have reported it.

I finally managed to reproduce it with qt-copy, some recent 4.3 X server 
and nvidia binary drivers.
The problem is that in PE_ScrollBarAddPage/PE_ScrollBarSubPage we are 
painting some pixels two times; first with a solid background color and 
a few lines later with a light Dense4Pattern. This produces some 
flicker...
A simple pixmap buffer would do it, but in Plastik I'm probably going to 
replace the Dense4Pattern stuff with something better. Sometime.
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