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fill our pixmaps with nothingness

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svn path=/trunk/KDE/kdelibs/; revision=1178747
This commit is contained in:
Aaron J. Seigo 2010-09-23 19:51:39 +00:00
parent 64bc2af527
commit 67736c1a15
1 changed files with 2 additions and 1 deletions
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3
paintutils.cpp
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@ -194,12 +194,13 @@ QPixmap transition(const QPixmap &from, const QPixmap &to, qreal amount)
QColor color;
color.setAlphaF(amount);
// If the native paint engine supports Porter/Duff compositing and CompositionMode_Plus
QPaintEngine *paintEngine = from.paintEngine();
if (paintEngine &&
paintEngine->hasFeature(QPaintEngine::PorterDuff) &&
paintEngine->hasFeature(QPaintEngine::BlendModes)) {
startPixmap.fill(Qt::transparent);
targetPixmap.fill(Qt::transparent);
QPainter p;
p.begin(&targetPixmap);