diff options
Diffstat (limited to 'src/widgets/kernel/qwidgetwindow.cpp')
| -rw-r--r-- | src/widgets/kernel/qwidgetwindow.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp index e50736d6b8..ef138267bb 100644 --- a/src/widgets/kernel/qwidgetwindow.cpp +++ b/src/widgets/kernel/qwidgetwindow.cpp @@ -100,6 +100,7 @@ QWidgetWindow::QWidgetWindow(QWidget *widget) setSurfaceType(QSurface::RasterGLSurface); } connect(m_widget, &QObject::objectNameChanged, this, &QWidgetWindow::updateObjectName); + connect(this, SIGNAL(screenChanged(QScreen*)), this, SLOT(repaintWindow())); } QWidgetWindow::~QWidgetWindow() @@ -560,6 +561,19 @@ void QWidgetWindow::updateGeometry() m_widget->data->fstrut_dirty = false; } +// Invalidates the backing store buffer and repaints immediately. +// ### Qt 5.4: replace with QUpdateWindowRequestEvent. +void QWidgetWindow::repaintWindow() +{ + if (!m_widget->isVisible() || !m_widget->updatesEnabled()) + return; + + QTLWExtra *tlwExtra = m_widget->window()->d_func()->maybeTopData(); + if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore) + tlwExtra->backingStoreTracker->markDirty(m_widget->rect(), m_widget, + QWidgetBackingStore::UpdateNow, QWidgetBackingStore::BufferInvalid); +} + Qt::WindowState effectiveState(Qt::WindowStates state); // Store normal geometry used for saving application settings. |