diff options
Diffstat (limited to 'src/widgets/kernel/qwidget.cpp')
-rw-r--r-- | src/widgets/kernel/qwidget.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp index f02a67d9ea..662c9b7403 100644 --- a/src/widgets/kernel/qwidget.cpp +++ b/src/widgets/kernel/qwidget.cpp @@ -2137,7 +2137,15 @@ void QWidgetPrivate::paintBackground(QPainter *painter, const QRegion &rgn, int if ((flags & DrawAsRoot) && !(q->autoFillBackground() && autoFillBrush.isOpaque())) { const QBrush bg = q->palette().brush(QPalette::Window); - fillRegion(painter, rgn, bg); + if (!(flags & DontSetCompositionMode)) { + //copy alpha straight in + QPainter::CompositionMode oldMode = painter->compositionMode(); + painter->setCompositionMode(QPainter::CompositionMode_Source); + fillRegion(painter, rgn, bg); + painter->setCompositionMode(oldMode); + } else { + fillRegion(painter, rgn, bg); + } } if (q->autoFillBackground()) @@ -5229,6 +5237,8 @@ void QWidgetPrivate::render(QPaintDevice *target, const QPoint &targetOffset, else flags |= DontSubtractOpaqueChildren; + flags |= DontSetCompositionMode; + if (target->devType() == QInternal::Printer) { QPainter p(target); render_helper(&p, targetOffset, paintRegion, renderFlags); |