C++ (Cpp) QDockWidget::allowedAreas示例

void tst_QDockWidget::allowedAreas()
{
    QDockWidget dw;

    QSignalSpy spy(&dw, SIGNAL(allowedAreasChanged(Qt::DockWidgetAreas)));

    // default
    QCOMPARE(dw.allowedAreas(), Qt::AllDockWidgetAreas);
    QVERIFY(dw.isAreaAllowed(Qt::LeftDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::RightDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::TopDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::BottomDockWidgetArea));

    // a single dock window area
    dw.setAllowedAreas(Qt::LeftDockWidgetArea);
    QCOMPARE(dw.allowedAreas(), Qt::LeftDockWidgetArea);
    QVERIFY(dw.isAreaAllowed(Qt::LeftDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::RightDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::TopDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::BottomDockWidgetArea));
    QCOMPARE(spy.count(), 1);
    QCOMPARE(*static_cast<const Qt::DockWidgetAreas *>(spy.at(0).value(0).constData()),
            dw.allowedAreas());
    spy.clear();
    dw.setAllowedAreas(dw.allowedAreas());
    QCOMPARE(spy.count(), 0);

    dw.setAllowedAreas(Qt::RightDockWidgetArea);
    QCOMPARE(dw.allowedAreas(), Qt::RightDockWidgetArea);
    QVERIFY(!dw.isAreaAllowed(Qt::LeftDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::RightDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::TopDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::BottomDockWidgetArea));
    QCOMPARE(spy.count(), 1);
    QCOMPARE(*static_cast<const Qt::DockWidgetAreas *>(spy.at(0).value(0).constData()),
            dw.allowedAreas());
    spy.clear();
    dw.setAllowedAreas(dw.allowedAreas());
    QCOMPARE(spy.count(), 0);

    dw.setAllowedAreas(Qt::TopDockWidgetArea);
    QCOMPARE(dw.allowedAreas(), Qt::TopDockWidgetArea);
    QVERIFY(!dw.isAreaAllowed(Qt::LeftDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::RightDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::TopDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::BottomDockWidgetArea));
    QCOMPARE(spy.count(), 1);
    QCOMPARE(*static_cast<const Qt::DockWidgetAreas *>(spy.at(0).value(0).constData()),
            dw.allowedAreas());
    spy.clear();
    dw.setAllowedAreas(dw.allowedAreas());
    QCOMPARE(spy.count(), 0);

    dw.setAllowedAreas(Qt::BottomDockWidgetArea);
    QCOMPARE(dw.allowedAreas(), Qt::BottomDockWidgetArea);
    QVERIFY(!dw.isAreaAllowed(Qt::LeftDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::RightDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::TopDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::BottomDockWidgetArea));
    QCOMPARE(spy.count(), 1);
    QCOMPARE(*static_cast<const Qt::DockWidgetAreas *>(spy.at(0).value(0).constData()),
            dw.allowedAreas());
    spy.clear();
    dw.setAllowedAreas(dw.allowedAreas());
    QCOMPARE(spy.count(), 0);

    // multiple dock window areas
    dw.setAllowedAreas(Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
    QCOMPARE(dw.allowedAreas(), Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
    QVERIFY(!dw.isAreaAllowed(Qt::LeftDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::RightDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::TopDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::BottomDockWidgetArea));
    QCOMPARE(spy.count(), 1);
    QCOMPARE(*static_cast<const Qt::DockWidgetAreas *>(spy.at(0).value(0).constData()),
            dw.allowedAreas());
    spy.clear();
    dw.setAllowedAreas(dw.allowedAreas());
    QCOMPARE(spy.count(), 0);

    dw.setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
    QCOMPARE(dw.allowedAreas(), Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
    QVERIFY(dw.isAreaAllowed(Qt::LeftDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::RightDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::TopDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::BottomDockWidgetArea));
    QCOMPARE(spy.count(), 1);
    QCOMPARE(*static_cast<const Qt::DockWidgetAreas *>(spy.at(0).value(0).constData()),
            dw.allowedAreas());
    spy.clear();
    dw.setAllowedAreas(dw.allowedAreas());
    QCOMPARE(spy.count(), 0);

    dw.setAllowedAreas(Qt::TopDockWidgetArea | Qt::LeftDockWidgetArea);
    QCOMPARE(dw.allowedAreas(), Qt::TopDockWidgetArea | Qt::LeftDockWidgetArea);
    QVERIFY(dw.isAreaAllowed(Qt::LeftDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::RightDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::TopDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::BottomDockWidgetArea));
    QCOMPARE(spy.count(), 1);
    QCOMPARE(*static_cast<const Qt::DockWidgetAreas *>(spy.at(0).value(0).constData()),
            dw.allowedAreas());
    spy.clear();
    dw.setAllowedAreas(dw.allowedAreas());
    QCOMPARE(spy.count(), 0);

    dw.setAllowedAreas(Qt::BottomDockWidgetArea | Qt::RightDockWidgetArea);
    QCOMPARE(dw.allowedAreas(), Qt::BottomDockWidgetArea | Qt::RightDockWidgetArea);
    QVERIFY(!dw.isAreaAllowed(Qt::LeftDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::RightDockWidgetArea));
    QVERIFY(!dw.isAreaAllowed(Qt::TopDockWidgetArea));
    QVERIFY(dw.isAreaAllowed(Qt::BottomDockWidgetArea));
    QCOMPARE(spy.count(), 1);
    QCOMPARE(*static_cast<const Qt::DockWidgetAreas *>(spy.at(0).value(0).constData()),
            dw.allowedAreas());
    spy.clear();
    dw.setAllowedAreas(dw.allowedAreas());
    QCOMPARE(spy.count(), 0);
}