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Workaround for a Qt bug.

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svn path=/trunk/kdebase/kwin/; revision=119819
This commit is contained in:
Luboš Luňák 2001-10-29 15:29:14 +00:00
parent 121e745651
commit 7e8a0fc428
1 changed files with 9 additions and 5 deletions
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14
clients/default/kdedefault.cpp
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@ -14,6 +14,7 @@
#include <kconfig.h> #include <kconfig.h>
#include <kglobal.h> #include <kglobal.h>
#include <kpixmapeffect.h> #include <kpixmapeffect.h>
#include <kimageeffect.h>
#include <kdrawutil.h> #include <kdrawutil.h>
#include <klocale.h> #include <klocale.h>
#include <qlayout.h> #include <qlayout.h>
@ -532,11 +533,14 @@ void KDEDefaultButton::drawButton(QPainter *p)
// Intensify the image if required // Intensify the image if required
if (isMouseOver) { if (isMouseOver) {
const QBitmap* mask = btnpix.mask(); if( btnpix.mask() != 0 ) {
if( mask != 0 ) { QBitmap save_mask = *btnpix.mask();
btnpix.detach(); QImage image = btnpix.convertToImage();
btnpix = KPixmapEffect::intensity(btnpix, 0.8); KImageEffect::intensity(image, 0.8);
btnpix.setMask( *mask ); // fix Qt problem, when QPixmap has alpha channel, mask is ignored
image.setAlphaBuffer( false );
btnpix.convertFromImage(image);
btnpix.setMask( save_mask );
} }
} }