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On Thursday 14 August 2008 10:18:06 Thiago Macieira wrote:
> BTW, the system tray also has this same mistake. I've just realised that
> what I thought was mirroring effects is actually this problem: after
> starting Skype, it got a nepomuk background (the icon right to its left).

Odd.  The only painting we do ourselves uses Plasma::PanelSvg, which is als=
o=20
used for the panel background as a whole and for the taskbar painting, neit=
her=20
of which seem to produce any glitches.

The cached pixmaps for PanelSvg are pre-filled with Qt::transparent using=20
QPixmap::fill().  QPainter::CompositionMode_Source isn't set before renderi=
ng=20
these to a QPainter, but setting this causes a lot of the panel rendering t=
o=20
be screwed up, because the transparency is effectively ignored.

Incidentally, I can't reproduce the effect you're seeing with the default=20
theme (although I haven't tried with Skype).

Alex


=2D-=20
Proud KDE hacker: http://www.kde.org
Get KDE 4.1 - out now!
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