diff options
| -rw-r--r-- | src/gui/painting/qbackingstore.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp index 83c58c4..4fcff1d 100644 --- a/src/gui/painting/qbackingstore.cpp +++ b/src/gui/painting/qbackingstore.cpp @@ -1117,6 +1117,11 @@ void QWidgetBackingStore::sync(QWidget *exposedWidget, const QRegion &exposedReg return; } + // If there's no partial update support we always need + // to do a full repaint before flushing + if (!windowSurface->hasPartialUpdateSupport()) + fullUpdatePending = true; + // Nothing to repaint. if (!isDirty()) { qt_flush(exposedWidget, exposedRegion, windowSurface, tlw, tlwOffset); |