// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0

#include <QTest>
#include <QtGui/QFontDatabase>

#include <qrawfont.h>
#include <private/qrawfont_p.h>

class tst_QRawFont: public QObject
{
    Q_OBJECT
#if !defined(QT_NO_RAWFONT)
private slots:
    void init();
    void initTestCase();

    void invalidRawFont();

    void explicitRawFontNotLoadedInDatabase_data();
    void explicitRawFontNotLoadedInDatabase();

    void explicitRawFontNotAvailableInSystem_data();
    void explicitRawFontNotAvailableInSystem();

    void correctFontData_data();
    void correctFontData();

    void glyphIndices();

    void advances_data();
    void advances();

    void textLayout();

    void fontTable_data();
    void fontTable();

    void supportedWritingSystems_data();
    void supportedWritingSystems();

    void supportsCharacter_data();
    void supportsCharacter();

    void supportsUcs4Character_data();
    void supportsUcs4Character();

    void fromFont_data();
    void fromFont();

    void copyConstructor_data();
    void copyConstructor();

    void detach_data();
    void detach();

    void unsupportedWritingSystem_data();
    void unsupportedWritingSystem();

    void rawFontSetPixelSize_data();
    void rawFontSetPixelSize();

    void multipleRawFontsFromData();

    void rawFontFromInvalidData();

    void kernedAdvances();

    void fallbackFontsOrder();

    void qtbug65923_partal_clone_data();
    void qtbug65923_partal_clone();

private:
    QString testFont;
    QString testFontBoldItalic;
    QString testFontOs2V1;
#endif // QT_NO_RAWFONT
};

#if !defined(QT_NO_RAWFONT)
Q_DECLARE_METATYPE(QFont::HintingPreference)
Q_DECLARE_METATYPE(QFont::Style)
Q_DECLARE_METATYPE(QFont::Weight)
Q_DECLARE_METATYPE(QFontDatabase::WritingSystem)

void tst_QRawFont::init()
{
}

void tst_QRawFont::initTestCase()
{
    testFont = QFINDTESTDATA("testfont.ttf");
    testFontBoldItalic = QFINDTESTDATA("testfont_bold_italic.ttf");
    testFontOs2V1 = QFINDTESTDATA("testfont_os2_v1.ttf");
    if (testFont.isEmpty() || testFontBoldItalic.isEmpty())
        QFAIL("qrawfont unittest font files not found!");

    if (QFontDatabase::families().size() == 0)
        QSKIP("No fonts available!!!");
}

void tst_QRawFont::invalidRawFont()
{
    QRawFont font;
    QVERIFY(!font.isValid());
    QCOMPARE(font.pixelSize(), 0.0);
    QVERIFY(font.familyName().isEmpty());
    QCOMPARE(font.style(), QFont::StyleNormal);
    QCOMPARE(font.weight(), -1);
    QCOMPARE(font.ascent(), 0.0);
    QCOMPARE(font.descent(), 0.0);
    QVERIFY(font.glyphIndexesForString(QLatin1String("Test")).isEmpty());
}

void tst_QRawFont::explicitRawFontNotLoadedInDatabase_data()
{
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");

    QTest::newRow("Default hinting preference") << QFont::PreferDefaultHinting;
    QTest::newRow("No hinting") << QFont::PreferNoHinting;
    QTest::newRow("Vertical hinting") << QFont::PreferVerticalHinting;
    QTest::newRow("Full hinting") << QFont::PreferFullHinting;
}

void tst_QRawFont::explicitRawFontNotLoadedInDatabase()
{
    QFETCH(QFont::HintingPreference, hintingPreference);

    QRawFont font(testFont, 10, hintingPreference);
    QVERIFY(font.isValid());

    QVERIFY(!QFontDatabase::families().contains(font.familyName()));
}

void tst_QRawFont::explicitRawFontNotAvailableInSystem_data()
{
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");

    QTest::newRow("Default hinting preference") << QFont::PreferDefaultHinting;
    QTest::newRow("No hinting") << QFont::PreferNoHinting;
    QTest::newRow("Vertical hinting") << QFont::PreferVerticalHinting;
    QTest::newRow("Full hinting") << QFont::PreferFullHinting;
}

void tst_QRawFont::explicitRawFontNotAvailableInSystem()
{
    QFETCH(QFont::HintingPreference, hintingPreference);

    QRawFont rawfont(testFont, 10, hintingPreference);

    {
        QFont font(rawfont.familyName(), 10);

        QVERIFY(!font.exactMatch());
        QVERIFY(font.family() != QFontInfo(font).family());
    }
}

void tst_QRawFont::correctFontData_data()
{
    QTest::addColumn<QString>("fileName");
    QTest::addColumn<QString>("expectedFamilyName");
    QTest::addColumn<QFont::Style>("style");
    QTest::addColumn<QFont::Weight>("weight");
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");
    QTest::addColumn<qreal>("unitsPerEm");
    QTest::addColumn<qreal>("pixelSize");
    QTest::addColumn<int>("capHeight");

    int hintingPreferences[] = {
        int(QFont::PreferDefaultHinting),
        int(QFont::PreferNoHinting),
        int(QFont::PreferVerticalHinting),
        int(QFont::PreferFullHinting),
        -1
    };
    int *hintingPreference = hintingPreferences;

    while (*hintingPreference >= 0) {
        QString fileName = testFont;
        QString title = fileName
                      + QLatin1String(": hintingPreference=")
                      + QString::number(*hintingPreference);

        QTest::newRow(qPrintable(title))
                << fileName
                << QString::fromLatin1("QtBidiTestFont")
                << QFont::StyleNormal
                << QFont::Normal
                << QFont::HintingPreference(*hintingPreference)
                << qreal(1000.0)
                << qreal(10.0)
                << 7;

        fileName = testFontBoldItalic;
        title = fileName
              + QLatin1String(": hintingPreference=")
              + QString::number(*hintingPreference);

        QTest::newRow(qPrintable(title))
                << fileName
                << QString::fromLatin1("QtBidiTestFont")
                << QFont::StyleItalic
                << QFont::Bold
                << QFont::HintingPreference(*hintingPreference)
                << qreal(1000.0)
                << qreal(10.0)
                << 7;

        fileName = testFontOs2V1;
        title = fileName
              + QLatin1String(": hintingPreference=")
              + QString::number(*hintingPreference);

        QTest::newRow(qPrintable(title))
                << fileName
                << QString::fromLatin1("QtBidiTestFont")
                << QFont::StyleNormal
                << QFont::Normal
                << QFont::HintingPreference(*hintingPreference)
                << qreal(1000.0)
                << qreal(10.0)
                << 7;

        ++hintingPreference;
    }
}

void tst_QRawFont::correctFontData()
{
    QFETCH(QString, fileName);
    QFETCH(QString, expectedFamilyName);
    QFETCH(QFont::Style, style);
    QFETCH(QFont::Weight, weight);
    QFETCH(QFont::HintingPreference, hintingPreference);
    QFETCH(qreal, unitsPerEm);
    QFETCH(qreal, pixelSize);
    QFETCH(int, capHeight);

    QRawFont font(fileName, 10, hintingPreference);
    QVERIFY(font.isValid());

    QCOMPARE(font.familyName(), expectedFamilyName);
    QCOMPARE(font.style(), style);
    QCOMPARE(font.weight(), int(weight));
    QCOMPARE(font.hintingPreference(), hintingPreference);
    QCOMPARE(font.unitsPerEm(), unitsPerEm);
    QCOMPARE(font.pixelSize(), pixelSize);

    // Some platforms return the actual fractional height of the
    // H character when the value is missing from the OS/2 table,
    // so we ceil it off to match (any touched pixel counts).
    QCOMPARE(qCeil(font.capHeight()), capHeight);
}

void tst_QRawFont::glyphIndices()
{
    QRawFont font(testFont, 10);
    QVERIFY(font.isValid());

    QList<quint32> glyphIndices = font.glyphIndexesForString(QLatin1String("Foobar"));
    QList<quint32> expectedGlyphIndices;
    expectedGlyphIndices << 44 << 83 << 83 << 70 << 69 << 86;

    QCOMPARE(glyphIndices, expectedGlyphIndices);

    glyphIndices = font.glyphIndexesForString(QString());
    QVERIFY(glyphIndices.isEmpty());

    QString str(QLatin1String("Foobar"));
    int numGlyphs = str.size();
    glyphIndices.resize(numGlyphs);

    QVERIFY(!font.glyphIndexesForChars(str.constData(), 0, glyphIndices.data(), &numGlyphs));
    QCOMPARE(numGlyphs, 0);

    QVERIFY(!font.glyphIndexesForChars(str.constData(), str.size(), glyphIndices.data(), &numGlyphs));
    QCOMPARE(numGlyphs, str.size());

    QVERIFY(font.glyphIndexesForChars(str.constData(), str.size(), glyphIndices.data(), &numGlyphs));
    QCOMPARE(numGlyphs, str.size());

    QCOMPARE(glyphIndices, expectedGlyphIndices);
}

void tst_QRawFont::advances_data()
{
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");

    QTest::newRow("Default hinting preference") << QFont::PreferDefaultHinting;
    QTest::newRow("No hinting") << QFont::PreferNoHinting;
    QTest::newRow("Vertical hinting") << QFont::PreferVerticalHinting;
    QTest::newRow("Full hinting") << QFont::PreferFullHinting;
}

void tst_QRawFont::advances()
{
    QFETCH(QFont::HintingPreference, hintingPreference);

    QRawFont font(testFont, 10, hintingPreference);
    QVERIFY(font.isValid());

    QRawFontPrivate *font_d = QRawFontPrivate::get(font);
    QVERIFY(font_d->fontEngine != 0);

    QList<quint32> glyphIndices;
    glyphIndices << 44 << 83 << 83 << 70 << 69 << 86; // "Foobar"

    bool supportsSubPixelPositions = font_d->fontEngine->supportsSubPixelPositions();
    QList<QPointF> advances = font.advancesForGlyphIndexes(glyphIndices);

    bool mayDiffer = font_d->fontEngine->type() == QFontEngine::Freetype
                     && (hintingPreference == QFont::PreferFullHinting
                      || hintingPreference == QFont::PreferDefaultHinting);

    for (int i = 0; i < glyphIndices.size(); ++i) {
        if ((i == 0 || i == 5) && mayDiffer) {
            QVERIFY2(qRound(advances.at(i).x()) == 8
                        || qRound(advances.at(i).x()) == 9,
                     qPrintable(QStringLiteral("%1 != %2 && %1 != %3")
                                .arg(qRound(advances.at(i).x()))
                                .arg(8)
                                .arg(9)));
        } else {
            QCOMPARE(qRound(advances.at(i).x()), 8);
        }

        if (supportsSubPixelPositions)
            QVERIFY(advances.at(i).x() > 8.0);

        QVERIFY(qFuzzyIsNull(advances.at(i).y()));
    }

    advances = font.advancesForGlyphIndexes(QList<quint32>());
    QVERIFY(advances.isEmpty());

    int numGlyphs = glyphIndices.size();
    advances.resize(numGlyphs);

    QVERIFY(!font.advancesForGlyphIndexes(glyphIndices.constData(), advances.data(), 0));

    QVERIFY(font.advancesForGlyphIndexes(glyphIndices.constData(), advances.data(), numGlyphs));

    for (int i = 0; i < glyphIndices.size(); ++i) {
        if ((i == 0 || i == 5) && mayDiffer) {
            QVERIFY2(qRound(advances.at(i).x()) == 8
                        || qRound(advances.at(i).x()) == 9,
                     qPrintable(QStringLiteral("%1 != %2 && %1 != %3")
                                .arg(qRound(advances.at(i).x()))
                                .arg(8)
                                .arg(9)));
        } else {
            QCOMPARE(qRound(advances.at(i).x()), 8);
        }

        if (supportsSubPixelPositions)
            QVERIFY(advances.at(i).x() > 8.0);

        QVERIFY(qFuzzyIsNull(advances.at(i).y()));
    }
}

void tst_QRawFont::textLayout()
{
    int id = QFontDatabase::addApplicationFont(testFont);
    QVERIFY(id >= 0);

    QString familyName = QString::fromLatin1("QtBidiTestFont");
    QFont font(familyName);
    font.setPixelSize(18.0);
    QCOMPARE(QFontInfo(font).family(), familyName);

    QTextLayout layout(QLatin1String("Foobar"));
    layout.setFont(font);
    layout.setCacheEnabled(true);
    layout.beginLayout();
    layout.createLine();
    layout.endLayout();

    QList<QGlyphRun> glyphRuns = layout.glyphRuns();
    QCOMPARE(glyphRuns.size(), 1);

    QGlyphRun glyphs = glyphRuns.at(0);

    QRawFont rawFont = glyphs.rawFont();
    QVERIFY(rawFont.isValid());
    QCOMPARE(rawFont.familyName(), familyName);
    QCOMPARE(rawFont.pixelSize(), 18.0);

    QList<quint32> expectedGlyphIndices;
    expectedGlyphIndices << 44 << 83 << 83 << 70 << 69 << 86;

    QCOMPARE(glyphs.glyphIndexes(), expectedGlyphIndices);

    QVERIFY(QFontDatabase::removeApplicationFont(id));
}

void tst_QRawFont::fontTable_data()
{
    QTest::addColumn<QByteArray>("tagName");
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");
    QTest::addColumn<int>("offset");
    QTest::addColumn<quint32>("expectedValue");

    QTest::newRow("Head table, magic number, default hinting")
            << QByteArray("head")
            << QFont::PreferDefaultHinting
            << 12
            << (QSysInfo::ByteOrder == QSysInfo::BigEndian
                ? 0x5F0F3CF5
                : 0xF53C0F5F);

    QTest::newRow("Head table, magic number, no hinting")
            << QByteArray("head")
            << QFont::PreferNoHinting
            << 12
            << (QSysInfo::ByteOrder == QSysInfo::BigEndian
                ? 0x5F0F3CF5
                : 0xF53C0F5F);

    QTest::newRow("Head table, magic number, vertical hinting")
            << QByteArray("head")
            << QFont::PreferVerticalHinting
            << 12
            << (QSysInfo::ByteOrder == QSysInfo::BigEndian
                ? 0x5F0F3CF5
                : 0xF53C0F5F);

    QTest::newRow("Head table, magic number, full hinting")
            << QByteArray("head")
            << QFont::PreferFullHinting
            << 12
            << (QSysInfo::ByteOrder == QSysInfo::BigEndian
                ? 0x5F0F3CF5
                : 0xF53C0F5F);
}

void tst_QRawFont::fontTable()
{
    QFETCH(QByteArray, tagName);
    QFETCH(QFont::HintingPreference, hintingPreference);
    QFETCH(int, offset);
    QFETCH(quint32, expectedValue);

    QRawFont font(testFont, 10, hintingPreference);
    QVERIFY(font.isValid());

    QByteArray table = font.fontTable(tagName);
    QVERIFY(!table.isEmpty());

    const quint32 *value = reinterpret_cast<const quint32 *>(table.constData() + offset);
    QCOMPARE(*value, expectedValue);
}

typedef QList<QFontDatabase::WritingSystem> WritingSystemList;
Q_DECLARE_METATYPE(WritingSystemList)

void tst_QRawFont::supportedWritingSystems_data()
{
    QTest::addColumn<QString>("fileName");
    QTest::addColumn<WritingSystemList>("writingSystems");
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");

    for (int hintingPreference=QFont::PreferDefaultHinting;
         hintingPreference<=QFont::PreferFullHinting;
         ++hintingPreference) {

        QTest::newRow(qPrintable(QString::fromLatin1("testfont.ttf, hintingPreference=%1")
                      .arg(hintingPreference)))
            << testFont
            << (QList<QFontDatabase::WritingSystem>()
                  << QFontDatabase::Latin
                  << QFontDatabase::Hebrew
                  << QFontDatabase::Vietnamese) // Vietnamese uses same unicode bits as Latin
            << QFont::HintingPreference(hintingPreference);

        QTest::newRow(qPrintable(QString::fromLatin1("testfont_bold_italic.ttf, hintingPreference=%1")
                      .arg(hintingPreference)))
            << testFontBoldItalic
            << (QList<QFontDatabase::WritingSystem>()
                    << QFontDatabase::Latin
                    << QFontDatabase::Hebrew
                    << QFontDatabase::Devanagari
                    << QFontDatabase::Vietnamese) // Vietnamese uses same unicode bits as Latin
            << QFont::HintingPreference(hintingPreference);
    }
}

void tst_QRawFont::supportedWritingSystems()
{
    QFETCH(QString, fileName);
    QFETCH(WritingSystemList, writingSystems);
    QFETCH(QFont::HintingPreference, hintingPreference);

    QRawFont font(fileName, 10, hintingPreference);
    QVERIFY(font.isValid());

    WritingSystemList actualWritingSystems = font.supportedWritingSystems();
    QCOMPARE(actualWritingSystems.size(), writingSystems.size());

    foreach (QFontDatabase::WritingSystem writingSystem, writingSystems)
        QVERIFY(actualWritingSystems.contains(writingSystem));
}

void tst_QRawFont::supportsCharacter_data()
{
    QTest::addColumn<QString>("fileName");
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");
    QTest::addColumn<QChar>("character");
    QTest::addColumn<bool>("shouldBeSupported");

    const char *fileNames[2] = {
        "testfont.ttf",
        "testfont_bold_italic.ttf"
    };

    for (int hintingPreference=QFont::PreferDefaultHinting;
         hintingPreference<=QFont::PreferFullHinting;
         ++hintingPreference) {

        for (int i=0; i<2; ++i) {
            QString fileName = QFINDTESTDATA(fileNames[i]);

            // Latin text
            for (char ch='!'; ch<='~'; ++ch) {
                    QString title = QString::fromLatin1("%1, character=0x%2, hintingPreference=%3")
                            .arg(fileName).arg(QString::number(ch, 16)).arg(hintingPreference);

                    QTest::newRow(qPrintable(title))
                            << fileName
                            << QFont::HintingPreference(hintingPreference)
                            << QChar::fromLatin1(ch)
                            << true;
            }

            // Hebrew text
            for (quint16 ch=0x05D0; ch<=0x05EA; ++ch) {
                QString title = QString::fromLatin1("%1, character=0x%2, hintingPreference=%3")
                        .arg(fileName).arg(QString::number(ch, 16)).arg(hintingPreference);

                QTest::newRow(qPrintable(title))
                        << fileName
                        << QFont::HintingPreference(hintingPreference)
                        << QChar(ch)
                        << true;
            }

            QTest::newRow(qPrintable(QString::fromLatin1("Missing character, %1, hintingPreference=%2")
                          .arg(fileName).arg(hintingPreference)))
                    << fileName
                    << QFont::HintingPreference(hintingPreference)
                    << QChar(0xD8)
                    << false;
        }
    }
}

void tst_QRawFont::supportsCharacter()
{
    QFETCH(QString, fileName);
    QFETCH(QFont::HintingPreference, hintingPreference);
    QFETCH(QChar, character);
    QFETCH(bool, shouldBeSupported);

    QRawFont font(fileName, 10, hintingPreference);
    QVERIFY(font.isValid());

    QCOMPARE(font.supportsCharacter(character), shouldBeSupported);
}

void tst_QRawFont::supportsUcs4Character_data()
{
    QTest::addColumn<QString>("fileName");
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");
    QTest::addColumn<quint32>("ucs4");
    QTest::addColumn<bool>("shouldBeSupported");

    // Gothic text
    for (int hintingPreference=QFont::PreferDefaultHinting;
         hintingPreference<=QFont::PreferFullHinting;
         ++hintingPreference) {
        for (quint32 ch=0x10330; ch<=0x1034A; ++ch) {
            {
                QString fileName = testFont;
                QString title = QString::fromLatin1("%1, character=0x%2, hintingPreference=%3")
                        .arg(fileName).arg(QString::number(ch, 16)).arg(hintingPreference);

                QTest::newRow(qPrintable(title))
                        << fileName
                        << QFont::HintingPreference(hintingPreference)
                        << ch
                        << true;
            }

            {
                QString fileName = testFontBoldItalic;
                QString title = QString::fromLatin1("%1, character=0x%2, hintingPreference=%3")
                        .arg(fileName).arg(QString::number(ch, 16)).arg(hintingPreference);

                QTest::newRow(qPrintable(title))
                        << fileName
                        << QFont::HintingPreference(hintingPreference)
                        << ch
                        << false;
            }
        }
    }
}

void tst_QRawFont::supportsUcs4Character()
{
    QFETCH(QString, fileName);
    QFETCH(QFont::HintingPreference, hintingPreference);
    QFETCH(quint32, ucs4);
    QFETCH(bool, shouldBeSupported);

    QRawFont font(fileName, 10, hintingPreference);
    QVERIFY(font.isValid());

    QCOMPARE(font.supportsCharacter(ucs4), shouldBeSupported);
}

void tst_QRawFont::fromFont_data()
{
    QTest::addColumn<QString>("fileName");
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");
    QTest::addColumn<QString>("familyName");
    QTest::addColumn<QFontDatabase::WritingSystem>("writingSystem");
    QTest::addColumn<QFont::StyleStrategy>("styleStrategy");

    for (int i=QFont::PreferDefaultHinting; i<=QFont::PreferFullHinting; ++i) {
        QString titleBase = QString::fromLatin1("%2, hintingPreference=%1, writingSystem=%3")
                .arg(i);
        {
            QString fileName = testFont;
            QFontDatabase::WritingSystem writingSystem = QFontDatabase::Any;

            QString title = titleBase.arg(fileName).arg(writingSystem);
            QTest::newRow(qPrintable(title))
                    << fileName
                    << QFont::HintingPreference(i)
                    << "QtBidiTestFont"
                    << writingSystem
                    << QFont::PreferDefault;
        }

        {
            QString fileName = testFont;
            QFontDatabase::WritingSystem writingSystem = QFontDatabase::Hebrew;

            QString title = titleBase.arg(fileName).arg(writingSystem);
            QTest::newRow(qPrintable(title))
                    << fileName
                    << QFont::HintingPreference(i)
                    << "QtBidiTestFont"
                    << writingSystem
                    << QFont::PreferDefault;
        }

        {
            QString fileName = testFont;
            QFontDatabase::WritingSystem writingSystem = QFontDatabase::Latin;

            QString title = titleBase.arg(fileName).arg(writingSystem);
            QTest::newRow(qPrintable(title))
                    << fileName
                    << QFont::HintingPreference(i)
                    << "QtBidiTestFont"
                    << writingSystem
                    << QFont::PreferDefault;
        }
    }

    {
        QString fileName = testFont;
        QFontDatabase::WritingSystem writingSystem = QFontDatabase::Arabic;

        QString title = QStringLiteral("No font merging + unsupported script");
        QTest::newRow(qPrintable(title))
                << fileName
                << QFont::PreferDefaultHinting
                << "QtBidiTestFont"
                << writingSystem
                << QFont::NoFontMerging;
    }

}

void tst_QRawFont::fromFont()
{
    QFETCH(QString, fileName);
    QFETCH(QFont::HintingPreference, hintingPreference);
    QFETCH(QString, familyName);
    QFETCH(QFontDatabase::WritingSystem, writingSystem);
    QFETCH(QFont::StyleStrategy, styleStrategy);

    int id = QFontDatabase::addApplicationFont(fileName);
    QVERIFY(id >= 0);

    QFont font(familyName);
    font.setHintingPreference(hintingPreference);
    font.setPixelSize(26.0);
    if (styleStrategy != QFont::PreferDefault)
        font.setStyleStrategy(styleStrategy);

    QRawFont rawFont = QRawFont::fromFont(font, writingSystem);
    QVERIFY(rawFont.isValid());

    QCOMPARE(rawFont.familyName(), familyName);
    QCOMPARE(rawFont.pixelSize(), 26.0);

    QVERIFY(QFontDatabase::removeApplicationFont(id));
}

void tst_QRawFont::copyConstructor_data()
{
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");

    QTest::newRow("Default hinting preference") << QFont::PreferDefaultHinting;
    QTest::newRow("No hinting preference") << QFont::PreferNoHinting;
    QTest::newRow("Vertical hinting preference") << QFont::PreferVerticalHinting;
    QTest::newRow("Full hinting preference") << QFont::PreferFullHinting;
}

void tst_QRawFont::copyConstructor()
{
    QFETCH(QFont::HintingPreference, hintingPreference);

    {
        QString rawFontFamilyName;
        qreal rawFontPixelSize;
        qreal rawFontAscent;
        qreal rawFontDescent;
        int rawFontTableSize;

        QRawFont outerRawFont;
        {
            QRawFont rawFont(testFont, 11, hintingPreference);
            QVERIFY(rawFont.isValid());

            rawFontFamilyName = rawFont.familyName();
            rawFontPixelSize = rawFont.pixelSize();
            rawFontAscent = rawFont.ascent();
            rawFontDescent = rawFont.descent();
            rawFontTableSize = rawFont.fontTable("glyf").size();
            QVERIFY(rawFontTableSize > 0);

            {
                QRawFont otherRawFont(rawFont);
                QVERIFY(otherRawFont.isValid());
                QCOMPARE(otherRawFont.pixelSize(), rawFontPixelSize);
                QCOMPARE(otherRawFont.familyName(), rawFontFamilyName);
                QCOMPARE(otherRawFont.hintingPreference(), hintingPreference);
                QCOMPARE(otherRawFont.ascent(), rawFontAscent);
                QCOMPARE(otherRawFont.descent(), rawFontDescent);
                QCOMPARE(otherRawFont.fontTable("glyf").size(), rawFontTableSize);
            }

            {
                QRawFont otherRawFont = rawFont;
                QVERIFY(otherRawFont.isValid());
                QCOMPARE(otherRawFont.pixelSize(), rawFontPixelSize);
                QCOMPARE(otherRawFont.familyName(), rawFontFamilyName);
                QCOMPARE(otherRawFont.hintingPreference(), hintingPreference);
                QCOMPARE(otherRawFont.ascent(), rawFontAscent);
                QCOMPARE(otherRawFont.descent(), rawFontDescent);
                QCOMPARE(otherRawFont.fontTable("glyf").size(), rawFontTableSize);
            }

            outerRawFont = rawFont;
        }

        QVERIFY(outerRawFont.isValid());
        QCOMPARE(outerRawFont.pixelSize(), rawFontPixelSize);
        QCOMPARE(outerRawFont.familyName(), rawFontFamilyName);
        QCOMPARE(outerRawFont.hintingPreference(), hintingPreference);
        QCOMPARE(outerRawFont.ascent(), rawFontAscent);
        QCOMPARE(outerRawFont.descent(), rawFontDescent);
        QCOMPARE(outerRawFont.fontTable("glyf").size(), rawFontTableSize);
    }
}

void tst_QRawFont::detach_data()
{
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");

    QTest::newRow("Default hinting preference") << QFont::PreferDefaultHinting;
    QTest::newRow("No hinting preference") << QFont::PreferNoHinting;
    QTest::newRow("Vertical hinting preference") << QFont::PreferVerticalHinting;
    QTest::newRow("Full hinting preference") << QFont::PreferFullHinting;
}

void tst_QRawFont::detach()
{
    QFETCH(QFont::HintingPreference, hintingPreference);

    {
        QString rawFontFamilyName;
        qreal rawFontPixelSize;
        qreal rawFontAscent;
        qreal rawFontDescent;
        int rawFontTableSize;

        QRawFont outerRawFont;
        {
            QRawFont rawFont(testFont, 11, hintingPreference);
            QVERIFY(rawFont.isValid());

            rawFontFamilyName = rawFont.familyName();
            rawFontPixelSize = rawFont.pixelSize();
            rawFontAscent = rawFont.ascent();
            rawFontDescent = rawFont.descent();
            rawFontTableSize = rawFont.fontTable("glyf").size();
            QVERIFY(rawFontTableSize > 0);

            {
                QRawFont otherRawFont(rawFont);

                otherRawFont.loadFromFile(testFont, rawFontPixelSize, hintingPreference);

                QVERIFY(otherRawFont.isValid());
                QCOMPARE(otherRawFont.pixelSize(), rawFontPixelSize);
                QCOMPARE(otherRawFont.familyName(), rawFontFamilyName);
                QCOMPARE(otherRawFont.hintingPreference(), hintingPreference);
                QCOMPARE(otherRawFont.ascent(), rawFontAscent);
                QCOMPARE(otherRawFont.descent(), rawFontDescent);
                QCOMPARE(otherRawFont.fontTable("glyf").size(), rawFontTableSize);
            }

            {
                QRawFont otherRawFont = rawFont;

                otherRawFont.loadFromFile(testFont, rawFontPixelSize, hintingPreference);

                QVERIFY(otherRawFont.isValid());
                QCOMPARE(otherRawFont.pixelSize(), rawFontPixelSize);
                QCOMPARE(otherRawFont.familyName(), rawFontFamilyName);
                QCOMPARE(otherRawFont.hintingPreference(), hintingPreference);
                QCOMPARE(otherRawFont.ascent(), rawFontAscent);
                QCOMPARE(otherRawFont.descent(), rawFontDescent);
                QCOMPARE(otherRawFont.fontTable("glyf").size(), rawFontTableSize);
            }

            outerRawFont = rawFont;

            rawFont.loadFromFile(testFont, rawFontPixelSize, hintingPreference);
        }

        QVERIFY(outerRawFont.isValid());
        QCOMPARE(outerRawFont.pixelSize(), rawFontPixelSize);
        QCOMPARE(outerRawFont.familyName(), rawFontFamilyName);
        QCOMPARE(outerRawFont.hintingPreference(), hintingPreference);
        QCOMPARE(outerRawFont.ascent(), rawFontAscent);
        QCOMPARE(outerRawFont.descent(), rawFontDescent);
        QCOMPARE(outerRawFont.fontTable("glyf").size(), rawFontTableSize);
    }
}

void tst_QRawFont::unsupportedWritingSystem_data()
{
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");

    QTest::newRow("Default hinting preference") << QFont::PreferDefaultHinting;
    QTest::newRow("No hinting preference") << QFont::PreferNoHinting;
    QTest::newRow("Vertical hinting preference") << QFont::PreferVerticalHinting;
    QTest::newRow("Full hinting preference") << QFont::PreferFullHinting;
}

void tst_QRawFont::unsupportedWritingSystem()
{
    QFETCH(QFont::HintingPreference, hintingPreference);

    int id = QFontDatabase::addApplicationFont(testFont);

    QFont font("QtBidiTestFont");
    font.setHintingPreference(hintingPreference);
    font.setPixelSize(12.0);

    QRawFont rawFont = QRawFont::fromFont(font, QFontDatabase::Any);
    QCOMPARE(rawFont.familyName(), QString::fromLatin1("QtBidiTestFont"));
    QCOMPARE(rawFont.pixelSize(), 12.0);

    rawFont = QRawFont::fromFont(font, QFontDatabase::Hebrew);
    QCOMPARE(rawFont.familyName(), QString::fromLatin1("QtBidiTestFont"));
    QCOMPARE(rawFont.pixelSize(), 12.0);

    QString arabicText = QFontDatabase::writingSystemSample(QFontDatabase::Arabic).simplified().remove(QLatin1Char(' '));

    QTextLayout layout;
    layout.setFont(font);
    layout.setText(arabicText);
    layout.setCacheEnabled(true);
    layout.beginLayout();
    layout.createLine();
    layout.endLayout();

    QList<QGlyphRun> glyphRuns = layout.glyphRuns();
    QCOMPARE(glyphRuns.size(), 1);

    QGlyphRun glyphs = glyphRuns.at(0);
    QRawFont layoutFont = glyphs.rawFont();
    QVERIFY(layoutFont.familyName() != QString::fromLatin1("QtBidiTestFont"));
    QCOMPARE(layoutFont.pixelSize(), 12.0);

    rawFont = QRawFont::fromFont(font, QFontDatabase::Arabic);
    QCOMPARE(rawFont.familyName(), layoutFont.familyName());
    QCOMPARE(rawFont.pixelSize(), 12.0);

    QFontDatabase::removeApplicationFont(id);
}

void tst_QRawFont::rawFontSetPixelSize_data()
{
    QTest::addColumn<QFont::HintingPreference>("hintingPreference");

    QTest::newRow("Default hinting preference") << QFont::PreferDefaultHinting;
    QTest::newRow("No hinting preference") << QFont::PreferNoHinting;
    QTest::newRow("Vertical hinting preference") << QFont::PreferVerticalHinting;
    QTest::newRow("Full hinting preference") << QFont::PreferFullHinting;
}

void tst_QRawFont::rawFontSetPixelSize()
{
    QFETCH(QFont::HintingPreference, hintingPreference);

    QTextLayout layout("Foobar");

    QFont font = layout.font();
    font.setHintingPreference(hintingPreference);
    font.setPixelSize(12);
    layout.setFont(font);

    layout.setCacheEnabled(true);
    layout.beginLayout();
    layout.createLine();
    layout.endLayout();

    QGlyphRun glyphs = layout.glyphRuns().at(0);
    QRawFont rawFont = glyphs.rawFont();
    QCOMPARE(rawFont.pixelSize(), 12.0);

    rawFont.setPixelSize(24);
    QCOMPARE(rawFont.pixelSize(), 24.0);
}

void tst_QRawFont::multipleRawFontsFromData()
{
    QFile file(testFont);
    QRawFont testFont;
    if (file.open(QIODevice::ReadOnly)) {
        testFont.loadFromData(file.readAll(), 11, QFont::PreferDefaultHinting);
        file.close();
    }
    file.setFileName(testFontBoldItalic);
    QRawFont testFontBoldItalic;
    if (file.open(QIODevice::ReadOnly))
        testFontBoldItalic.loadFromData(file.readAll(), 11, QFont::PreferDefaultHinting);

    QVERIFY(testFont.familyName() != (testFontBoldItalic.familyName())
            || testFont.style() != (testFontBoldItalic.style()));
}

void tst_QRawFont::rawFontFromInvalidData()
{
    QByteArray invalidData("foobar");
    QRawFont font;
    font.loadFromData(invalidData, 10, QFont::PreferDefaultHinting);

    QVERIFY(!font.isValid());

    invalidData.fill(char(255), 1024);
    font.loadFromData(invalidData, 10, QFont::PreferDefaultHinting);

    QVERIFY(!font.isValid());
}

#define FUZZY_LTEQ(X, Y) (X < Y || qFuzzyCompare(X, Y))

void tst_QRawFont::kernedAdvances()
{
    const int emSquareSize = 1000;
    const qreal pixelSize = 16.0;
    const int underScoreAW = 500;
    const int underscoreTwoKerning = -500;
    const qreal errorMargin = 1.0 / 16.0; // Fixed point error margin

    QRawFont font(testFont, pixelSize);
    QVERIFY(font.isValid());

    QList<quint32> glyphIndexes = font.glyphIndexesForString(QStringLiteral("__"));
    QCOMPARE(glyphIndexes.size(), 2);

    QList<QPointF> advances = font.advancesForGlyphIndexes(glyphIndexes, QRawFont::KernedAdvances);
    QCOMPARE(advances.size(), 2);

    qreal expectedAdvanceWidth = pixelSize * underScoreAW / emSquareSize;
    QVERIFY(FUZZY_LTEQ(qAbs(advances.at(0).x() - expectedAdvanceWidth), errorMargin));

    glyphIndexes = font.glyphIndexesForString(QStringLiteral("_2"));
    QCOMPARE(glyphIndexes.size(), 2);

    advances = font.advancesForGlyphIndexes(glyphIndexes, QRawFont::KernedAdvances);
    QCOMPARE(advances.size(), 2);

    expectedAdvanceWidth = pixelSize * (underScoreAW + underscoreTwoKerning) / emSquareSize;
    QVERIFY(FUZZY_LTEQ(qAbs(advances.at(0).x() - expectedAdvanceWidth), errorMargin));
}

void tst_QRawFont::fallbackFontsOrder()
{
    int id = QFontDatabase::addApplicationFont(testFont);

    QFont font("QtBidiTestFont");
    font.setPixelSize(12.0);

    QString arabicText = QFontDatabase::writingSystemSample(QFontDatabase::Arabic);

    // If this fails, then the writing system sample has changed and we need to create
    // a new text containing both a space and Arabic characters.
    QVERIFY(arabicText.contains(QLatin1Char(' ')));

    QTextLayout layout;
    layout.setFont(font);
    layout.setText(arabicText);
    layout.setCacheEnabled(true);
    layout.beginLayout();
    layout.createLine();
    layout.endLayout();

    QList<QGlyphRun> glyphRuns = layout.glyphRuns();

#ifdef Q_OS_ANDROID
    QEXPECT_FAIL("", "QTBUG-69217", Continue);
#endif
    // Since QtBidiTestFont does not support Arabic nor the space, both should map to
    // the same font. If this fails, it is an indication that the list of fallbacks fonts
    // is not sorted by writing system support.
    QCOMPARE(glyphRuns.size(), 1);

    QFontDatabase::removeApplicationFont(id);
}

void tst_QRawFont::qtbug65923_partal_clone_data()
{
    QTest::addColumn<bool>("shouldClone");

    QTest::newRow("Without cloning font engine") << false;
    QTest::newRow("Cloning font engine") << true;
}

void tst_QRawFont::qtbug65923_partal_clone()
{
    QFile file(testFont);
    file.open(QIODevice::ReadOnly);
    QByteArray fontData = file.readAll();

    QRawFont outerFont;

    {
        QRawFont innerFont(fontData, 16, QFont::PreferDefaultHinting);

        QFETCH(bool, shouldClone);
        if (shouldClone) {
            // This will trigger QFontEngine::cloneWithSize
            innerFont.setPixelSize(innerFont.pixelSize() + 1);
        }

        outerFont = innerFont;
    }

    // This will detach if data is shared with the raw font. If the raw font has
    // a naked reference to the data, without informing Qt of it via the ref count
    // of the byte array, this will result in clearing 'live' data.
    fontData.fill('\0');

    QVERIFY(!outerFont.boundingRect(42).isEmpty());
}

#endif // QT_NO_RAWFONT

QTEST_MAIN(tst_QRawFont)
#include "tst_qrawfont.moc"