Plastik decorations feels faster now.
There already is something which triggers PaintEvents, I don't understand why
this is. However paintEvent() has actually been called 2 (!) times for every
resize event.
It seems that other window decorations have the same problem, I will check that
later.
CCMAIL: kwin@kde.org
svn path=/trunk/kdebase/kwin/; revision=355068