diff options
Diffstat (limited to 'tests/auto/qwidget')
-rw-r--r-- | tests/auto/qwidget/tst_qwidget.cpp | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/tests/auto/qwidget/tst_qwidget.cpp b/tests/auto/qwidget/tst_qwidget.cpp index 43dd077..2161f99 100644 --- a/tests/auto/qwidget/tst_qwidget.cpp +++ b/tests/auto/qwidget/tst_qwidget.cpp @@ -397,6 +397,9 @@ private slots: void minimizedWindowModeTransitions(); void normalWindowModeTransitions(); void focusSwitchClosesPopupMenu(); +#if !defined(Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE) + void opacityChangeCausesBackingStoreRecreation(); +#endif #endif void focusProxyAndInputMethods(); @@ -10336,7 +10339,47 @@ void tst_QWidget::focusSwitchClosesPopupMenu() mainWindow.activateWindow(); QVERIFY(!CEikonEnv::Static()->AppUiFactory()->MenuBar()->IsDisplayed()); } -#endif + +#if !defined(Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE) +class OpacityChangeWidget : public QWidget +{ +public: + OpacityChangeWidget() : m_paintEngineType(QPaintEngine::MaxUser) { } + void paintEvent(QPaintEvent *) + { + QPainter painter(this); + m_paintEngineType = painter.paintEngine()->type(); + } + QPaintEngine::Type paintEngineType() const { return m_paintEngineType; } +private: + QPaintEngine::Type m_paintEngineType; +}; + +void tst_QWidget::opacityChangeCausesBackingStoreRecreation() +{ + OpacityChangeWidget w; + w.show(); + QTest::qWaitForWindowShown(&w); + const QPaintEngine::Type type = w.paintEngineType(); + if (QPaintEngine::OpenGL != type && QPaintEngine::OpenVG != type) { + QSKIP("Test case is only valid when using opengl or openvg graphics system", SkipAll); + } else { + if (QApplicationPrivate::instance()->useTranslucentEGLSurfaces) { + QSKIP("Test case is only valid when EGL surface transparency is not supported", SkipAll); + } else { + // Making window transparent should force switch to raster graphics system + w.setAttribute(Qt::WA_TranslucentBackground, true); + w.repaint(); + QCOMPARE(w.paintEngineType(), QPaintEngine::Raster); + // Making window opaque should cause switch back to previous graphics system + w.setAttribute(Qt::WA_TranslucentBackground, false); + w.repaint(); + QCOMPARE(w.paintEngineType(), type); + } + } +} +#endif // !Q_SYMBIAN_SEMITRANSPARENT_BG_SURFACE +#endif // Q_OS_SYMBIAN class InputContextTester : public QInputContext { |