and I don't see the point in resetting the shape every time in paintEvent().
Partially fixes resizing problems with Qt4.4.
svn path=/trunk/KDE/kdebase/workspace/; revision=782673
Prepare for caching of those colors - doesn't connect to actual KGS
signal yet - so are never invalidated
svn path=/trunk/KDE/kdebase/workspace/; revision=726729
get rid of xrender stuff
did this to get smooth painting:
widget()->setAttribute( Qt::WA_PaintOnScreen, false);
svn path=/trunk/KDE/kdebase/workspace/; revision=688425