diff options
Diffstat (limited to 'src/gui/kernel/qwidget_mac.mm')
| -rw-r--r-- | src/gui/kernel/qwidget_mac.mm | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm index 70eea3a..3bbf5d4 100644 --- a/src/gui/kernel/qwidget_mac.mm +++ b/src/gui/kernel/qwidget_mac.mm @@ -3100,7 +3100,12 @@ void QWidgetPrivate::update_sys(const QRegion &rgn) return; dirtyOnWidget += rgn; #ifndef QT_MAC_USE_COCOA - HIViewSetNeedsDisplayInRegion(qt_mac_nativeview_for(q), QMacSmartQuickDrawRegion(rgn.toQDRgn()), true); + RgnHandle rgnHandle = rgn.toQDRgnForUpdate_sys(); + if (rgnHandle) + HIViewSetNeedsDisplayInRegion(qt_mac_nativeview_for(q), QMacSmartQuickDrawRegion(rgnHandle), true); + else { + HIViewSetNeedsDisplay(qt_mac_nativeview_for(q), true); // do a complete repaint on overflow. + } #else // Cocoa doesn't do regions, it seems more efficient to just update the bounding rect instead of a potential number of message passes for each rect. const QRect &boundingRect = rgn.boundingRect(); |