diff options
Diffstat (limited to 'src/widgets/kernel/qwidgetrepaintmanager.cpp')
| -rw-r--r-- | src/widgets/kernel/qwidgetrepaintmanager.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/widgets/kernel/qwidgetrepaintmanager.cpp b/src/widgets/kernel/qwidgetrepaintmanager.cpp index abe5e8016e..607a767a20 100644 --- a/src/widgets/kernel/qwidgetrepaintmanager.cpp +++ b/src/widgets/kernel/qwidgetrepaintmanager.cpp @@ -355,7 +355,11 @@ void QWidgetRepaintManager::sendUpdateRequest(QWidget *widget, UpdateTime update switch (updateTime) { case UpdateLater: - updateRequestSent = true; + // Prevent redundant update request events, unless it's a + // paint on screen widget, as these don't go through the + // normal backingstore sync machinery. + if (!widget->d_func()->shouldPaintOnScreen()) + updateRequestSent = true; QCoreApplication::postEvent(widget, new QEvent(QEvent::UpdateRequest), Qt::LowEventPriority); break; case UpdateNow: { |