diff options
| -rw-r--r-- | src/widgets/kernel/qwidgetwindow.cpp | 8 | ||||
| -rw-r--r-- | tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp | 24 |
2 files changed, 25 insertions, 7 deletions
diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp index 5290d79d9e..872572a7e2 100644 --- a/src/widgets/kernel/qwidgetwindow.cpp +++ b/src/widgets/kernel/qwidgetwindow.cpp @@ -873,14 +873,8 @@ void QWidgetWindow::handleExposeEvent(QExposeEvent *event) { if (isExposed()) { m_widget->setAttribute(Qt::WA_Mapped); - if (!event->region().isNull()) { - // Exposed native widgets need to be marked dirty to get them repainted correctly. - if (m_widget->internalWinId() && !m_widget->isWindow() && m_widget->isVisible() && m_widget->updatesEnabled()) { - if (QWidgetBackingStore *bs = m_widget->d_func()->maybeBackingStore()) - bs->markDirty(event->region(), m_widget); - } + if (!event->region().isNull()) m_widget->d_func()->syncBackingStore(event->region()); - } } else { m_widget->setAttribute(Qt::WA_Mapped, false); } diff --git a/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp b/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp index 27be063333..3a4b563a6c 100644 --- a/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp +++ b/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp @@ -88,6 +88,7 @@ private slots: void tst_showWithoutActivating(); void tst_paintEventOnSecondShow(); + void tst_paintEventOnResize_QTBUG50796(); #ifndef QT_NO_DRAGANDDROP void tst_dnd(); @@ -369,6 +370,29 @@ void tst_QWidget_window::tst_paintEventOnSecondShow() QTRY_VERIFY(w.paintEventCount > 0); } +void tst_QWidget_window::tst_paintEventOnResize_QTBUG50796() +{ + const QRect availableGeo = QGuiApplication::primaryScreen()->availableGeometry(); + + QWidget root; + root.setGeometry(availableGeo.width()/2 - 100, availableGeo.height()/2 - 100, + 200, 200); + + PaintTestWidget *native = new PaintTestWidget(&root); + native->winId(); // We're testing native widgets + native->setGeometry(10, 10, 50, 50); + + root.show(); + QVERIFY(QTest::qWaitForWindowExposed(&root)); + QVERIFY(QTest::qWaitForWindowActive(&root)); + QVERIFY(native->isVisible()); + + native->paintEventCount = 0; + native->resize(native->width() + 10, native->height() + 10); + QTest::qWait(50); // Wait for paint events + QTRY_COMPARE(native->paintEventCount, 1); // Only one paint event must occur +} + #ifndef QT_NO_DRAGANDDROP /* DnD test for QWidgetWindow (handleDrag*Event() functions). |