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#include <QtTest/QtTest>

#include <qfontcombobox.h>

class tst_QFontComboBox : public QObject

{

    Q_OBJECT

public slots:

    void initTestCase();

    void cleanupTestCase();

    void init();

    void cleanup();

private slots:

    void qfontcombobox_data();

    void qfontcombobox();

    void currentFont_data();

    void currentFont();

    void fontFilters_data();

    void fontFilters();

    void sizeHint();

    void writingSystem_data();

    void writingSystem();

    void currentFontChanged();

};

// Subclass that exposes the protected functions.

class SubQFontComboBox : public QFontComboBox

{

public:

    void call_currentFontChanged(QFont const& f)

        { return SubQFontComboBox::currentFontChanged(f); }

    bool call_event(QEvent* e)

        { return SubQFontComboBox::event(e); }

};

// This will be called before the first test function is executed.

// It is only called once.

void tst_QFontComboBox::initTestCase()

{

}

// This will be called after the last test function is executed.

// It is only called once.

void tst_QFontComboBox::cleanupTestCase()

{

}

// This will be called before each test function is executed.

void tst_QFontComboBox::init()

{

}

// This will be called after every test function.

void tst_QFontComboBox::cleanup()

{

}

void tst_QFontComboBox::qfontcombobox_data()

{

}

void tst_QFontComboBox::qfontcombobox()

{

    SubQFontComboBox box;

    QCOMPARE(box.currentFont(), QFont());

    QCOMPARE(box.fontFilters(), QFontComboBox::AllFonts);

    box.setCurrentFont(QFont());

    box.setFontFilters(QFontComboBox::AllFonts);

    box.setWritingSystem(QFontDatabase::Any);

    QVERIFY(box.sizeHint() != QSize());

    QCOMPARE(box.writingSystem(), QFontDatabase::Any);

    box.call_currentFontChanged(QFont());

    QEvent event(QEvent::None);

    QCOMPARE(box.call_event(&event), false);

}

void tst_QFontComboBox::currentFont_data()

{

    QTest::addColumn<QFont>("currentFont");

    // Normalize the names

    QFont defaultFont;

    QTest::newRow("default") << defaultFont;

    defaultFont.setPointSize(defaultFont.pointSize() + 10);

    QTest::newRow("default") << defaultFont;

    QFontDatabase db;

    QStringList list = db.families();

    for (int i = 0; i < list.count(); ++i) {

        QFont f = QFont(QFontInfo(QFont(list.at(i))).family());

        QTest::newRow(qPrintable(list.at(i))) << f;

    }

}

// public QFont currentFont() const

void tst_QFontComboBox::currentFont()

{

    QFETCH(QFont, currentFont);

    SubQFontComboBox box;

    QSignalSpy spy0(&box, SIGNAL(currentFontChanged(QFont const&)));

    QFont oldCurrentFont = box.currentFont();

    box.setCurrentFont(currentFont);

    QCOMPARE(box.currentFont(), currentFont);

    QString boxFontFamily = QFontInfo(box.currentFont()).family();

    QRegExp foundry(" \\[.*\\]");

    if (!currentFont.family().contains(foundry))

        boxFontFamily.remove(foundry);

    QCOMPARE(boxFontFamily, currentFont.family());

    if (oldCurrentFont != box.currentFont()) {

        //the signal may be emit twice if there is a foundry into brackets

        QVERIFY(spy0.count() >= 1);

    }

}

Q_DECLARE_METATYPE(QFontComboBox::FontFilters)

void tst_QFontComboBox::fontFilters_data()

{

    QTest::addColumn<QFontComboBox::FontFilters>("fontFilters");

    QTest::newRow("AllFonts")

        << QFontComboBox::FontFilters(QFontComboBox::AllFonts);

    QTest::newRow("ScalableFonts")

        << QFontComboBox::FontFilters(QFontComboBox::ScalableFonts);

    QTest::newRow("NonScalableFonts")

        << QFontComboBox::FontFilters(QFontComboBox::NonScalableFonts);

    QTest::newRow("MonospacedFonts")

        << QFontComboBox::FontFilters(QFontComboBox::MonospacedFonts);

    QTest::newRow("ProportionalFonts")

        << QFontComboBox::FontFilters(QFontComboBox::ProportionalFonts);

    // combine two

    QTest::newRow("ProportionalFonts | NonScalableFonts")

        << QFontComboBox::FontFilters(QFontComboBox::ProportionalFonts | QFontComboBox::NonScalableFonts);

    // i.e. all

    QTest::newRow("ScalableFonts | NonScalableFonts")

        << QFontComboBox::FontFilters(QFontComboBox::ScalableFonts | QFontComboBox::NonScalableFonts);

}

// public QFontComboBox::FontFilters fontFilters() const

void tst_QFontComboBox::fontFilters()

{

    QFETCH(QFontComboBox::FontFilters, fontFilters);

    SubQFontComboBox box;

    QSignalSpy spy0(&box, SIGNAL(currentFontChanged(QFont const&)));

    QFont currentFont = box.currentFont();

    box.setFontFilters(fontFilters);

    QCOMPARE(box.fontFilters(), fontFilters);

    QFontDatabase db;

    QStringList list = db.families();

    int c = 0;

    const int scalableMask = (QFontComboBox::ScalableFonts | QFontComboBox::NonScalableFonts);

    const int spacingMask = (QFontComboBox::ProportionalFonts | QFontComboBox::MonospacedFonts);

    if((fontFilters & scalableMask) == scalableMask)

        fontFilters &= ~scalableMask;

    if((fontFilters & spacingMask) == spacingMask)

        fontFilters &= ~spacingMask;

    for (int i = 0; i < list.count(); ++i) {

        if (fontFilters & QFontComboBox::ScalableFonts) {

            if (!db.isSmoothlyScalable(list[i]))

                continue;

        } else if (fontFilters & QFontComboBox::NonScalableFonts) {

            if (db.isSmoothlyScalable(list[i]))

                continue;

        }

        if (fontFilters & QFontComboBox::MonospacedFonts) {

            if (!db.isFixedPitch(list[i]))

                continue;

        } else if (fontFilters & QFontComboBox::ProportionalFonts) {

            if (db.isFixedPitch(list[i]))

                continue;

        }

        c++;

    }

    QCOMPARE(box.model()->rowCount(), c);

    if (c == 0)

        QCOMPARE(box.currentFont(), QFont());

    QCOMPARE(spy0.count(), (currentFont != box.currentFont()) ? 1 : 0);

}

// public QSize sizeHint() const

void tst_QFontComboBox::sizeHint()

{

    SubQFontComboBox box;

    QSize sizeHint = box.QComboBox::sizeHint();

    QFontMetrics fm(box.font());

    sizeHint.setWidth(qMax(sizeHint.width(), fm.width(QLatin1Char('m'))*14));

    QCOMPARE(box.sizeHint(), sizeHint);

}

Q_DECLARE_METATYPE(QFontDatabase::WritingSystem)

void tst_QFontComboBox::writingSystem_data()

{

    QTest::addColumn<QFontDatabase::WritingSystem>("writingSystem");

    QTest::newRow("Any") << QFontDatabase::Any;

    QTest::newRow("Latin") << QFontDatabase::Latin;

    QTest::newRow("Lao") << QFontDatabase::Lao;

    QTest::newRow("TraditionalChinese") << QFontDatabase::TraditionalChinese;

    QTest::newRow("Ogham") << QFontDatabase::Ogham;

    QTest::newRow("Runic") << QFontDatabase::Runic;

    for (int i = 0; i < 31; ++i)

        QTest::newRow("enum") << (QFontDatabase::WritingSystem)i;

}

// public QFontDatabase::WritingSystem writingSystem() const

void tst_QFontComboBox::writingSystem()

{

    QFETCH(QFontDatabase::WritingSystem, writingSystem);

    SubQFontComboBox box;

    QSignalSpy spy0(&box, SIGNAL(currentFontChanged(QFont const&)));

    QFont currentFont = box.currentFont();

    box.setWritingSystem(writingSystem);

    QCOMPARE(box.writingSystem(), writingSystem);

    QFontDatabase db;

    QStringList list = db.families(writingSystem);

    QCOMPARE(box.model()->rowCount(), list.count());

    if (list.count() == 0)

        QCOMPARE(box.currentFont(), QFont());

    QCOMPARE(spy0.count(), (currentFont != box.currentFont()) ? 1 : 0);

}

// protected void currentFontChanged(QFont const& f)

void tst_QFontComboBox::currentFontChanged()

{

    SubQFontComboBox box;

    QSignalSpy spy0(&box, SIGNAL(currentFontChanged(QFont const&)));

    if (box.model()->rowCount() > 2) {

        QTest::keyPress(&box, Qt::Key_Down);

        QCOMPARE(spy0.count(), 1);

    } else

        qWarning("Not enough fonts installed on test system. Consider adding some");

}

QTEST_MAIN(tst_QFontComboBox)

#include "tst_qfontcombobox.moc"