this fixes widget colours not updating with theme changes -> if, for instance, an offscreen widget is created, this results in a reparenting (to null)
and that in turn creates a palette changed event ... which was being intepretted as a custom palette being set and that would disable future updates
due to theme changes.
this also introduces a small helper which computes the palettes once for use by all widgets as a small performance improvement.
BUG:261967
* use button text color for button text (sounds more logically obvious than it was ;)
* optionally use button text color for regular text as well (used by spinbox, lineedit)
svn path=/trunk/KDE/kdelibs/; revision=1191135
bad Aaron, no cookie :)
can you check if those changes make sense upon what your patch ws supposed to be?
CCMAIL:aseigo@kde.org
svn path=/trunk/KDE/kdelibs/; revision=1188445
