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#include <QtTest/QtTest>

#include <QSizeGrip>

#include <QEvent>

#include <QLineEdit>

#include <QVBoxLayout>

#include <QLabel>

static inline Qt::Corner sizeGripCorner(QWidget *parent, QSizeGrip *sizeGrip)

{

    if (!parent || !sizeGrip)

        return Qt::TopLeftCorner;

    const QPoint sizeGripPos = sizeGrip->mapTo(parent, QPoint(0, 0));

    bool isAtBottom = sizeGripPos.y() >= parent->height() / 2;

    bool isAtLeft = sizeGripPos.x() <= parent->width() / 2;

    if (isAtLeft)

        return isAtBottom ? Qt::BottomLeftCorner : Qt::TopLeftCorner;

    else

        return isAtBottom ? Qt::BottomRightCorner : Qt::TopRightCorner;

}

//TESTED_CLASS=

//TESTED_FILES=

Q_DECLARE_METATYPE(Qt::WindowType);

class tst_QSizeGrip : public QObject

{

    Q_OBJECT

public slots:

    void initTestCase();

    void cleanupTestCase();

private slots:

    void hideAndShowOnWindowStateChange_data();

    void hideAndShowOnWindowStateChange();

    void orientation();

private:

    QLineEdit *dummyWidget;

};

class TestWidget : public QWidget

{

public:

    TestWidget(QWidget *parent = 0, Qt::WindowFlags flags = 0) : QWidget(parent, flags) {}

    QSize sizeHint() const { return QSize(300, 200); }

    void changeEvent(QEvent *event)

    {

        QWidget::changeEvent(event);

        if (isWindow() && event->type() == QEvent::WindowStateChange) {

#ifdef Q_WS_X11

            qt_x11_wait_for_window_manager(this);

#endif

        }

    }

};

void tst_QSizeGrip::initTestCase()

{

    dummyWidget = new QLineEdit;

    dummyWidget->show();

}

void tst_QSizeGrip::cleanupTestCase()

{

    delete dummyWidget;

    dummyWidget = 0;

}

void tst_QSizeGrip::hideAndShowOnWindowStateChange_data()

{

    QTest::addColumn<Qt::WindowType>("windowType");

    QTest::newRow("Qt::Window") << Qt::Window;

    QTest::newRow("Qt::SubWindow") << Qt::SubWindow;

}

void tst_QSizeGrip::hideAndShowOnWindowStateChange()

{

    QFETCH(Qt::WindowType, windowType);

    QWidget *parentWidget = windowType == Qt::Window ?  0 : new QWidget;

    TestWidget *widget = new TestWidget(parentWidget, Qt::WindowFlags(windowType));

    QSizeGrip *sizeGrip = new QSizeGrip(widget);

    // Normal.

    if (parentWidget)

        parentWidget->show();

    else

        widget->show();

    QVERIFY(sizeGrip->isVisible());

    widget->showFullScreen();

    QVERIFY(!sizeGrip->isVisible());

    widget->showNormal();

    QVERIFY(sizeGrip->isVisible());

    widget->showMaximized();

#ifndef Q_WS_MAC

    QVERIFY(!sizeGrip->isVisible());

#else

    QVERIFY(sizeGrip->isVisible());

#endif

    widget->showNormal();

    QVERIFY(sizeGrip->isVisible());

    sizeGrip->hide();

    QVERIFY(!sizeGrip->isVisible());

    widget->showFullScreen();

    widget->showNormal();

    QVERIFY(!sizeGrip->isVisible());

    widget->showMaximized();

    widget->showNormal();

    QVERIFY(!sizeGrip->isVisible());

    delete widget;

    delete parentWidget;

}

void tst_QSizeGrip::orientation()

{

    TestWidget widget;

    widget.setLayout(new QVBoxLayout);

    QSizeGrip *sizeGrip = new QSizeGrip(&widget);

    sizeGrip->setFixedSize(sizeGrip->sizeHint());

    widget.layout()->addWidget(sizeGrip);

    widget.layout()->setAlignment(sizeGrip, Qt::AlignBottom | Qt::AlignRight);

    widget.show();

    QCOMPARE(sizeGripCorner(&widget, sizeGrip), Qt::BottomRightCorner);

    widget.setLayoutDirection(Qt::RightToLeft);

    qApp->processEvents();

    QCOMPARE(sizeGripCorner(&widget, sizeGrip), Qt::BottomLeftCorner);

    widget.unsetLayoutDirection();

    qApp->processEvents();

    QCOMPARE(sizeGripCorner(&widget, sizeGrip), Qt::BottomRightCorner);

    widget.layout()->setAlignment(sizeGrip, Qt::AlignTop | Qt::AlignRight);

    qApp->processEvents();

    QCOMPARE(sizeGripCorner(&widget, sizeGrip), Qt::TopRightCorner);

    widget.setLayoutDirection(Qt::RightToLeft);

    qApp->processEvents();

    QCOMPARE(sizeGripCorner(&widget, sizeGrip), Qt::TopLeftCorner);

    widget.unsetLayoutDirection();

    qApp->processEvents();

    QCOMPARE(sizeGripCorner(&widget, sizeGrip), Qt::TopRightCorner);

}

QTEST_MAIN(tst_QSizeGrip)

#include "tst_qsizegrip.moc"