diff options
| author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2016-11-29 14:34:03 +0100 |
|---|---|---|
| committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2018-08-21 13:18:07 +0000 |
| commit | cf0ea18ac41c71418e84840d4933b126f0bf6b0a (patch) | |
| tree | 869197d38c5540a668cc4ef34b7859b38a6656db /src/widgets | |
| parent | 5be5b798b2c4260a5baa6ceb920e6bdd676a7013 (diff) | |
QWidgetWindow: Ensure Qt::WA_Mapped is set on obscured parent widgets
Frameless obscured windows do not receive WM_PAINT/expose events on
Windows. Qt::WA_Mapped needs to be set on them to ensure updating works.
Task-number: QTBUG-39220
Task-number: QTBUG-52039
Task-number: QTBUG-58575
Task-number: QTBUG-63927
Change-Id: Ic6c11f2be96378b6a6b61296f1f3e13cd49b50a6
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Diffstat (limited to 'src/widgets')
| -rw-r--r-- | src/widgets/kernel/qwidgetwindow.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp index 1c73588b7c..1a2ac4a4dd 100644 --- a/src/widgets/kernel/qwidgetwindow.cpp +++ b/src/widgets/kernel/qwidgetwindow.cpp @@ -977,7 +977,10 @@ void QWidgetWindow::handleExposeEvent(QExposeEvent *event) } if (exposed) { + // QTBUG-39220, QTBUG-58575: set all (potentially fully obscured parent widgets) mapped. m_widget->setAttribute(Qt::WA_Mapped); + for (QWidget *p = m_widget->parentWidget(); p && !p->testAttribute(Qt::WA_Mapped); p = p->parentWidget()) + p->setAttribute(Qt::WA_Mapped); if (!event->region().isNull()) wPriv->syncBackingStore(event->region()); } else { |