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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 814 insertions, 0 deletions

diff --git a/tests/auto/qrawfont/tst_qrawfont.cpp b/tests/auto/qrawfont/tst_qrawfont.cpp
new file mode 100644
index 0000000000..3aa4006b68
--- /dev/null
+++ b/tests/auto/qrawfont/tst_qrawfont.cpp
@@ -0,0 +1,814 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+
+#include <qrawfont.h>
+#include <private/qrawfont_p.h>
+
+class tst_QRawFont: public QObject
+{
+    Q_OBJECT
+
+#if !defined(QT_NO_RAWFONT)
+private slots:
+    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();
+#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::invalidRawFont()
+{
+    QRawFont font;
+    QVERIFY(!font.isValid());
+    QCOMPARE(font.pixelSize(), -1);
+    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(QLatin1String(SRCDIR "testfont.ttf"), 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(QLatin1String(SRCDIR "testfont.ttf"), 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<int>("pixelSize");
+
+    int hintingPreferences[] = {
+        int(QFont::PreferDefaultHinting),
+        int(QFont::PreferNoHinting),
+        int(QFont::PreferVerticalHinting),
+        int(QFont::PreferFullHinting),
+        -1
+    };
+    int *hintingPreference = hintingPreferences;
+
+    while (*hintingPreference >= 0) {
+        QString fileName = QLatin1String(SRCDIR "testfont.ttf");
+        QString title = fileName
+                      + QLatin1String(": hintingPreference=")
+                      + QString::number(*hintingPreference);
+
+        QTest::newRow(qPrintable(title))
+                << fileName
+                << QString::fromLatin1("QtBidiTestFont")
+                << QFont::StyleNormal
+                << QFont::Normal
+                << QFont::HintingPreference(*hintingPreference)
+                << 1000.0
+                << 10;
+
+        fileName = QLatin1String(SRCDIR "testfont_bold_italic.ttf");
+        title = fileName
+              + QLatin1String(": hintingPreference=")
+              + QString::number(*hintingPreference);
+
+        QTest::newRow(qPrintable(title))
+                << fileName
+                << QString::fromLatin1("QtBidiTestFont")
+                << QFont::StyleItalic
+                << QFont::Bold
+                << QFont::HintingPreference(*hintingPreference)
+                << 1000.0
+                << 10;
+
+        ++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(int, pixelSize);
+
+    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);
+}
+
+void tst_QRawFont::glyphIndices()
+{
+    QRawFont font(QLatin1String(SRCDIR "testfont.ttf"), 10);
+    QVERIFY(font.isValid());
+
+    QVector<quint32> glyphIndices = font.glyphIndexesForString(QLatin1String("Foobar"));
+    QVector<quint32> expectedGlyphIndices;
+    expectedGlyphIndices << 44 << 83 << 83 << 70 << 69 << 86;
+
+    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(QLatin1String(SRCDIR "testfont.ttf"), 10, hintingPreference);
+    QVERIFY(font.isValid());
+
+    QRawFontPrivate *font_d = QRawFontPrivate::get(font);
+    QVERIFY(font_d->fontEngine != 0);
+
+    QVector<quint32> glyphIndices;
+    glyphIndices << 44 << 83 << 83 << 70 << 69 << 86; // "Foobar"
+
+    bool supportsSubPixelPositions = font_d->fontEngine->supportsSubPixelPositions();
+    QVector<QPointF> advances = font.advancesForGlyphIndexes(glyphIndices);
+    for (int i=0; i<glyphIndices.size(); ++i) {
+        QVERIFY(qFuzzyCompare(qRound(advances.at(i).x()), 8.0));
+        if (supportsSubPixelPositions)
+            QVERIFY(advances.at(i).x() > 8.0);
+
+        QVERIFY(qFuzzyIsNull(advances.at(i).y()));
+    }
+}
+
+void tst_QRawFont::textLayout()
+{
+    QFontDatabase fontDatabase;
+    int id = fontDatabase.addApplicationFont(SRCDIR "testfont.ttf");
+    QVERIFY(id >= 0);
+
+    QString familyName = QString::fromLatin1("QtBidiTestFont");
+    QFont font(familyName);
+    font.setPixelSize(18);
+    QCOMPARE(QFontInfo(font).family(), familyName);
+
+    QTextLayout layout(QLatin1String("Foobar"));
+    layout.setFont(font);
+    layout.beginLayout();
+    layout.createLine();
+    layout.endLayout();
+
+    QList<QGlyphs> glyphss = layout.glyphs();
+    QCOMPARE(glyphss.size(), 1);
+
+    QGlyphs glyphs = glyphss.at(0);
+
+    QRawFont rawFont = glyphs.font();
+    QVERIFY(rawFont.isValid());
+    QCOMPARE(rawFont.familyName(), familyName);
+    QCOMPARE(rawFont.pixelSize(), 18);
+
+    QVector<quint32> expectedGlyphIndices;
+    expectedGlyphIndices << 44 << 83 << 83 << 70 << 69 << 86;
+
+    QCOMPARE(glyphs.glyphIndexes(), expectedGlyphIndices);
+
+    QVERIFY(fontDatabase.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(QString::fromLatin1(SRCDIR "testfont.ttf"), 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)))
+            << QString::fromLatin1(SRCDIR "testfont.ttf")
+            << (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)))
+            << QString::fromLatin1(SRCDIR "testfont_bold_italic.ttf")
+            << (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] = {
+        SRCDIR "testfont.ttf",
+        SRCDIR "testfont_bold_italic.ttf"
+    };
+
+    for (int hintingPreference=QFont::PreferDefaultHinting;
+         hintingPreference<=QFont::PreferFullHinting;
+         ++hintingPreference) {
+
+        for (int i=0; i<2; ++i) {
+            QString fileName = QLatin1String(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 = QString::fromLatin1(SRCDIR "testfont.ttf");
+                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 = QString::fromLatin1(SRCDIR "testfont_bold_italic.ttf");
+                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");
+
+    for (int i=QFont::PreferDefaultHinting; i<=QFont::PreferFullHinting; ++i) {
+        QString titleBase = QString::fromLatin1("%2, hintingPreference=%1, writingSystem=%3")
+                .arg(i);
+        {
+            QString fileName = QString::fromLatin1(SRCDIR "testfont.ttf");
+            QFontDatabase::WritingSystem writingSystem = QFontDatabase::Any;
+
+            QString title = titleBase.arg(fileName).arg(writingSystem);
+            QTest::newRow(qPrintable(title))
+                    << fileName
+                    << QFont::HintingPreference(i)
+                    << "QtBidiTestFont"
+                    << writingSystem;
+        }
+
+        {
+            QString fileName = QString::fromLatin1(SRCDIR "testfont.ttf");
+            QFontDatabase::WritingSystem writingSystem = QFontDatabase::Hebrew;
+
+            QString title = titleBase.arg(fileName).arg(writingSystem);
+            QTest::newRow(qPrintable(title))
+                    << fileName
+                    << QFont::HintingPreference(i)
+                    << "QtBidiTestFont"
+                    << writingSystem;
+        }
+
+        {
+            QString fileName = QString::fromLatin1(SRCDIR "testfont.ttf");
+            QFontDatabase::WritingSystem writingSystem = QFontDatabase::Latin;
+
+            QString title = titleBase.arg(fileName).arg(writingSystem);
+            QTest::newRow(qPrintable(title))
+                    << fileName
+                    << QFont::HintingPreference(i)
+                    << "QtBidiTestFont"
+                    << writingSystem;
+        }
+    }
+}
+
+void tst_QRawFont::fromFont()
+{
+    QFETCH(QString, fileName);
+    QFETCH(QFont::HintingPreference, hintingPreference);
+    QFETCH(QString, familyName);
+    QFETCH(QFontDatabase::WritingSystem, writingSystem);
+
+    QFontDatabase fontDatabase;
+    int id = fontDatabase.addApplicationFont(fileName);
+    QVERIFY(id >= 0);
+
+    QFont font(familyName);
+    font.setHintingPreference(hintingPreference);
+    font.setPixelSize(26);
+
+    QRawFont rawFont = QRawFont::fromFont(font, writingSystem);
+    QVERIFY(rawFont.isValid());
+    QCOMPARE(rawFont.familyName(), familyName);
+    QCOMPARE(rawFont.pixelSize(), 26);
+
+    QVERIFY(fontDatabase.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;
+        int rawFontPixelSize;
+        qreal rawFontAscent;
+        qreal rawFontDescent;
+        int rawFontTableSize;
+
+        QRawFont outerRawFont;
+        {
+            QRawFont rawFont(QString::fromLatin1(SRCDIR "testfont.ttf"), 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;
+        int rawFontPixelSize;
+        qreal rawFontAscent;
+        qreal rawFontDescent;
+        int rawFontTableSize;
+
+        QRawFont outerRawFont;
+        {
+            QRawFont rawFont(QString::fromLatin1(SRCDIR "testfont.ttf"), 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(QLatin1String(SRCDIR "testfont.ttf"),
+                                          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(QLatin1String(SRCDIR "testfont.ttf"),
+                                          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(QLatin1String(SRCDIR "testfont.ttf"), 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);
+
+    QFontDatabase fontDatabase;
+    int id = fontDatabase.addApplicationFont(QLatin1String(SRCDIR "testfont.ttf"));
+
+    QFont font("QtBidiTestFont");
+    font.setHintingPreference(hintingPreference);
+    font.setPixelSize(12);
+
+    QRawFont rawFont = QRawFont::fromFont(font, QFontDatabase::Any);
+    QCOMPARE(rawFont.familyName(), QString::fromLatin1("QtBidiTestFont"));
+    QCOMPARE(rawFont.pixelSize(), 12);
+
+    rawFont = QRawFont::fromFont(font, QFontDatabase::Hebrew);
+    QCOMPARE(rawFont.familyName(), QString::fromLatin1("QtBidiTestFont"));
+    QCOMPARE(rawFont.pixelSize(), 12);
+
+    QString arabicText = QFontDatabase::writingSystemSample(QFontDatabase::Arabic);
+
+    QTextLayout layout;
+    layout.setFont(font);
+    layout.setText(arabicText);
+    layout.beginLayout();
+    layout.createLine();
+    layout.endLayout();
+
+    QList<QGlyphs> glyphss = layout.glyphs();
+    QCOMPARE(glyphss.size(), 1);
+
+    QGlyphs glyphs = glyphss.at(0);
+    QRawFont layoutFont = glyphs.font();
+    QVERIFY(layoutFont.familyName() != QString::fromLatin1("QtBidiTestFont"));
+    QCOMPARE(layoutFont.pixelSize(), 12);
+
+    rawFont = QRawFont::fromFont(font, QFontDatabase::Arabic);
+    QCOMPARE(rawFont.familyName(), layoutFont.familyName());
+    QCOMPARE(rawFont.pixelSize(), 12);
+
+    fontDatabase.removeApplicationFont(id);
+}
+
+#endif // QT_NO_RAWFONT
+
+QTEST_MAIN(tst_QRawFont)
+#include "tst_qrawfont.moc"
+