diff options
Diffstat (limited to 'src/widgets/kernel/qwidgetwindow.cpp')
| -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 { |