Move Windows font DB and engines to QtFontDatabaseSupport

This allows creating or extending QPA plugins to provide access to QFont
and related types.

It concerns both GDI and DirectWrite engines, as well as the regular and
the freetype based font databases. The qt.qpa.fonts logging category has
been moved together into the QWindowsFontDatabase related files to avoid
depending on the qwindowscontext.h header file. Finally, QwindowsNativeImage
is following pending a future refactor with similar code in qpixmap_win.cpp
and the Windows XP style.

Change-Id: Iddff2f3d715e3ab7695e6c2052b7596a01fd6fa8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 0 insertions, 1960 deletions

diff --git a/src/plugins/platforms/windows/qwindowsfontdatabase.cpp b/src/plugins/platforms/windows/qwindowsfontdatabase.cpp
deleted file mode 100644
index 1630b80306..0000000000
--- a/src/plugins/platforms/windows/qwindowsfontdatabase.cpp
+++ /dev/null
@@ -1,1960 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qwindowsfontdatabase.h"
-#include "qwindowsfontdatabase_ft.h" // for default font
-#include "qwindowscontext.h"
-#include "qwindowsintegration.h"
-#include "qwindowsfontengine.h"
-#include "qwindowsfontenginedirectwrite.h"
-#include <QtCore/qt_windows.h>
-
-#include <QtGui/QFont>
-#include <QtGui/QGuiApplication>
-#include <QtGui/private/qhighdpiscaling_p.h>
-
-#include <QtCore/qmath.h>
-#include <QtCore/QDebug>
-#include <QtCore/QFile>
-#include <QtCore/QtEndian>
-#include <QtCore/QThreadStorage>
-#include <QtCore/private/qsystemlibrary_p.h>
-
-#include <wchar.h>
-
-#if !defined(QT_NO_DIRECTWRITE)
-#  if defined(QT_USE_DIRECTWRITE2)
-#    include <dwrite_2.h>
-#  else
-#    include <dwrite.h>
-#  endif
-#  include <d2d1.h>
-#endif
-
-QT_BEGIN_NAMESPACE
-
-#ifndef QT_NO_DIRECTWRITE
-// ### fixme: Consider direct linking of dwrite.dll once Windows Vista pre SP2 is dropped (QTBUG-49711)
-
-typedef HRESULT (WINAPI *DWriteCreateFactoryType)(DWRITE_FACTORY_TYPE, const IID &, IUnknown **);
-
-static inline DWriteCreateFactoryType resolveDWriteCreateFactory()
-{
-    if (QSysInfo::windowsVersion() < QSysInfo::WV_VISTA)
-        return Q_NULLPTR;
-    QSystemLibrary library(QStringLiteral("dwrite"));
-    QFunctionPointer result = library.resolve("DWriteCreateFactory");
-    if (Q_UNLIKELY(!result)) {
-        qWarning("Unable to load dwrite.dll");
-        return Q_NULLPTR;
-    }
-    return reinterpret_cast<DWriteCreateFactoryType>(result);
-}
-
-static void createDirectWriteFactory(IDWriteFactory **factory)
-{
-    *factory = Q_NULLPTR;
-
-    static const DWriteCreateFactoryType dWriteCreateFactory = resolveDWriteCreateFactory();
-    if (!dWriteCreateFactory)
-        return;
-
-    IUnknown *result = NULL;
-#if defined(QT_USE_DIRECTWRITE2)
-    dWriteCreateFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory2), &result);
-#endif
-
-    if (result == NULL) {
-        if (FAILED(dWriteCreateFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory), &result))) {
-            qErrnoWarning("DWriteCreateFactory failed");
-            return;
-        }
-    }
-
-    *factory = static_cast<IDWriteFactory *>(result);
-}
-
-static inline bool useDirectWrite(QFont::HintingPreference hintingPreference,
-                                  const QString &familyName = QString(),
-                                  bool isColorFont = false)
-{
-    const unsigned options = QWindowsIntegration::instance()->options();
-    if (Q_UNLIKELY(options & QWindowsIntegration::DontUseDirectWriteFonts))
-        return false;
-    if (isColorFont)
-        return (options & QWindowsIntegration::DontUseColorFonts) == 0;
-
-    // At some scales, GDI will misrender the MingLiU font, so we force use of
-    // DirectWrite to work around the issue.
-    if (Q_UNLIKELY(familyName.startsWith(QLatin1String("MingLiU"))))
-        return true;
-
-    return hintingPreference == QFont::PreferNoHinting
-        || hintingPreference == QFont::PreferVerticalHinting
-        || (QHighDpiScaling::isActive() && hintingPreference == QFont::PreferDefaultHinting);
-}
-#endif // !QT_NO_DIRECTWRITE
-
-// Helper classes for creating font engines directly from font data
-namespace {
-
-#   pragma pack(1)
-
-    // Common structure for all formats of the "name" table
-    struct NameTable
-    {
-        quint16 format;
-        quint16 count;
-        quint16 stringOffset;
-    };
-
-    struct NameRecord
-    {
-        quint16 platformID;
-        quint16 encodingID;
-        quint16 languageID;
-        quint16 nameID;
-        quint16 length;
-        quint16 offset;
-    };
-
-    struct OffsetSubTable
-    {
-        quint32 scalerType;
-        quint16 numTables;
-        quint16 searchRange;
-        quint16 entrySelector;
-        quint16 rangeShift;
-    };
-
-    struct TableDirectory
-    {
-        quint32 identifier;
-        quint32 checkSum;
-        quint32 offset;
-        quint32 length;
-    };
-
-    struct OS2Table
-    {
-        quint16 version;
-        qint16  avgCharWidth;
-        quint16 weightClass;
-        quint16 widthClass;
-        quint16 type;
-        qint16  subscriptXSize;
-        qint16  subscriptYSize;
-        qint16  subscriptXOffset;
-        qint16  subscriptYOffset;
-        qint16  superscriptXSize;
-        qint16  superscriptYSize;
-        qint16  superscriptXOffset;
-        qint16  superscriptYOffset;
-        qint16  strikeOutSize;
-        qint16  strikeOutPosition;
-        qint16  familyClass;
-        quint8  panose[10];
-        quint32 unicodeRanges[4];
-        quint8  vendorID[4];
-        quint16 selection;
-        quint16 firstCharIndex;
-        quint16 lastCharIndex;
-        qint16  typoAscender;
-        qint16  typoDescender;
-        qint16  typoLineGap;
-        quint16 winAscent;
-        quint16 winDescent;
-        quint32 codepageRanges[2];
-        qint16  height;
-        qint16  capHeight;
-        quint16 defaultChar;
-        quint16 breakChar;
-        quint16 maxContext;
-    };
-
-#   pragma pack()
-
-    class EmbeddedFont
-    {
-    public:
-        EmbeddedFont(const QByteArray &fontData) : m_fontData(fontData) {}
-
-        QString changeFamilyName(const QString &newFamilyName);
-        QByteArray data() const { return m_fontData; }
-        TableDirectory *tableDirectoryEntry(const QByteArray &tagName);
-        QString familyName(TableDirectory *nameTableDirectory = 0);
-
-    private:
-        QByteArray m_fontData;
-    };
-
-    TableDirectory *EmbeddedFont::tableDirectoryEntry(const QByteArray &tagName)
-    {
-        Q_ASSERT(tagName.size() == 4);
-        quint32 tagId = *(reinterpret_cast<const quint32 *>(tagName.constData()));
-        const size_t fontDataSize = m_fontData.size();
-        if (Q_UNLIKELY(fontDataSize < sizeof(OffsetSubTable)))
-            return 0;
-
-        OffsetSubTable *offsetSubTable = reinterpret_cast<OffsetSubTable *>(m_fontData.data());
-        TableDirectory *tableDirectory = reinterpret_cast<TableDirectory *>(offsetSubTable + 1);
-
-        const size_t tableCount = qFromBigEndian<quint16>(offsetSubTable->numTables);
-        if (Q_UNLIKELY(fontDataSize < sizeof(OffsetSubTable) + sizeof(TableDirectory) * tableCount))
-            return 0;
-
-        TableDirectory *tableDirectoryEnd = tableDirectory + tableCount;
-        for (TableDirectory *entry = tableDirectory; entry < tableDirectoryEnd; ++entry) {
-            if (entry->identifier == tagId)
-                return entry;
-        }
-
-        return 0;
-    }
-
-    QString EmbeddedFont::familyName(TableDirectory *nameTableDirectoryEntry)
-    {
-        QString name;
-
-        if (nameTableDirectoryEntry == 0)
-            nameTableDirectoryEntry = tableDirectoryEntry("name");
-
-        if (nameTableDirectoryEntry != 0) {
-            quint32 offset = qFromBigEndian<quint32>(nameTableDirectoryEntry->offset);
-            if (Q_UNLIKELY(quint32(m_fontData.size()) < offset + sizeof(NameTable)))
-                return QString();
-
-            NameTable *nameTable = reinterpret_cast<NameTable *>(m_fontData.data() + offset);
-            NameRecord *nameRecord = reinterpret_cast<NameRecord *>(nameTable + 1);
-
-            quint16 nameTableCount = qFromBigEndian<quint16>(nameTable->count);
-            if (Q_UNLIKELY(quint32(m_fontData.size()) < offset + sizeof(NameRecord) * nameTableCount))
-                return QString();
-
-            for (int i = 0; i < nameTableCount; ++i, ++nameRecord) {
-                if (qFromBigEndian<quint16>(nameRecord->nameID) == 1
-                 && qFromBigEndian<quint16>(nameRecord->platformID) == 3 // Windows
-                 && qFromBigEndian<quint16>(nameRecord->languageID) == 0x0409) { // US English
-                    quint16 stringOffset = qFromBigEndian<quint16>(nameTable->stringOffset);
-                    quint16 nameOffset = qFromBigEndian<quint16>(nameRecord->offset);
-                    quint16 nameLength = qFromBigEndian<quint16>(nameRecord->length);
-
-                    if (Q_UNLIKELY(quint32(m_fontData.size()) < offset + stringOffset + nameOffset + nameLength))
-                        return QString();
-
-                    const void *ptr = reinterpret_cast<const quint8 *>(nameTable)
-                                                        + stringOffset
-                                                        + nameOffset;
-
-                    const quint16 *s = reinterpret_cast<const quint16 *>(ptr);
-                    const quint16 *e = s + nameLength / sizeof(quint16);
-                    while (s != e)
-                        name += QChar( qFromBigEndian<quint16>(*s++));
-                    break;
-                }
-            }
-        }
-
-        return name;
-    }
-
-    QString EmbeddedFont::changeFamilyName(const QString &newFamilyName)
-    {
-        TableDirectory *nameTableDirectoryEntry = tableDirectoryEntry("name");
-        if (nameTableDirectoryEntry == 0)
-            return QString();
-
-        QString oldFamilyName = familyName(nameTableDirectoryEntry);
-
-        // Reserve size for name table header, five required name records and string
-        const int requiredRecordCount = 5;
-        quint16 nameIds[requiredRecordCount] = { 1, 2, 3, 4, 6 };
-
-        int sizeOfHeader = sizeof(NameTable) + sizeof(NameRecord) * requiredRecordCount;
-        int newFamilyNameSize = newFamilyName.size() * int(sizeof(quint16));
-
-        const QString regularString = QString::fromLatin1("Regular");
-        int regularStringSize = regularString.size() * int(sizeof(quint16));
-
-        // Align table size of table to 32 bits (pad with 0)
-        int fullSize = ((sizeOfHeader + newFamilyNameSize + regularStringSize) & ~3) + 4;
-
-        QByteArray newNameTable(fullSize, char(0));
-
-        {
-            NameTable *nameTable = reinterpret_cast<NameTable *>(newNameTable.data());
-            nameTable->count = qbswap<quint16>(requiredRecordCount);
-            nameTable->stringOffset = qbswap<quint16>(sizeOfHeader);
-
-            NameRecord *nameRecord = reinterpret_cast<NameRecord *>(nameTable + 1);
-            for (int i = 0; i < requiredRecordCount; ++i, nameRecord++) {
-                nameRecord->nameID = qbswap<quint16>(nameIds[i]);
-                nameRecord->encodingID = qbswap<quint16>(1);
-                nameRecord->languageID = qbswap<quint16>(0x0409);
-                nameRecord->platformID = qbswap<quint16>(3);
-                nameRecord->length = qbswap<quint16>(newFamilyNameSize);
-
-                // Special case for sub-family
-                if (nameIds[i] == 4) {
-                    nameRecord->offset = qbswap<quint16>(newFamilyNameSize);
-                    nameRecord->length = qbswap<quint16>(regularStringSize);
-                }
-            }
-
-            // nameRecord now points to string data
-            quint16 *stringStorage = reinterpret_cast<quint16 *>(nameRecord);
-            const quint16 *sourceString = newFamilyName.utf16();
-            for (int i = 0; i < newFamilyName.size(); ++i)
-                stringStorage[i] = qbswap<quint16>(sourceString[i]);
-            stringStorage += newFamilyName.size();
-
-            sourceString = regularString.utf16();
-            for (int i = 0; i < regularString.size(); ++i)
-                stringStorage[i] = qbswap<quint16>(sourceString[i]);
-        }
-
-        quint32 *p = reinterpret_cast<quint32 *>(newNameTable.data());
-        quint32 *tableEnd = reinterpret_cast<quint32 *>(newNameTable.data() + fullSize);
-
-        quint32 checkSum = 0;
-        while (p < tableEnd)
-            checkSum +=  qFromBigEndian<quint32>(*(p++));
-
-        nameTableDirectoryEntry->checkSum = qbswap<quint32>(checkSum);
-        nameTableDirectoryEntry->offset = qbswap<quint32>(m_fontData.size());
-        nameTableDirectoryEntry->length = qbswap<quint32>(fullSize);
-
-        m_fontData.append(newNameTable);
-
-        return oldFamilyName;
-    }
-
-#if !defined(QT_NO_DIRECTWRITE)
-
-    class DirectWriteFontFileStream: public IDWriteFontFileStream
-    {
-    public:
-        DirectWriteFontFileStream(const QByteArray &fontData)
-            : m_fontData(fontData)
-            , m_referenceCount(0)
-        {
-        }
-        virtual ~DirectWriteFontFileStream()
-        {
-        }
-
-        HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void **object);
-        ULONG STDMETHODCALLTYPE AddRef();
-        ULONG STDMETHODCALLTYPE Release();
-
-        HRESULT STDMETHODCALLTYPE ReadFileFragment(const void **fragmentStart, UINT64 fileOffset,
-                                                   UINT64 fragmentSize, OUT void **fragmentContext);
-        void STDMETHODCALLTYPE ReleaseFileFragment(void *fragmentContext);
-        HRESULT STDMETHODCALLTYPE GetFileSize(OUT UINT64 *fileSize);
-        HRESULT STDMETHODCALLTYPE GetLastWriteTime(OUT UINT64 *lastWriteTime);
-
-    private:
-        QByteArray m_fontData;
-        ULONG m_referenceCount;
-    };
-
-    HRESULT STDMETHODCALLTYPE DirectWriteFontFileStream::QueryInterface(REFIID iid, void **object)
-    {
-        if (iid == IID_IUnknown || iid == __uuidof(IDWriteFontFileStream)) {
-            *object = this;
-            AddRef();
-            return S_OK;
-        } else {
-            *object = NULL;
-            return E_NOINTERFACE;
-        }
-    }
-
-    ULONG STDMETHODCALLTYPE DirectWriteFontFileStream::AddRef()
-    {
-        return InterlockedIncrement(&m_referenceCount);
-    }
-
-    ULONG STDMETHODCALLTYPE DirectWriteFontFileStream::Release()
-    {
-        ULONG newCount = InterlockedDecrement(&m_referenceCount);
-        if (newCount == 0)
-            delete this;
-        return newCount;
-    }
-
-    HRESULT STDMETHODCALLTYPE DirectWriteFontFileStream::ReadFileFragment(
-        const void **fragmentStart,
-        UINT64 fileOffset,
-        UINT64 fragmentSize,
-        OUT void **fragmentContext)
-    {
-        *fragmentContext = NULL;
-        if (fileOffset + fragmentSize <= quint64(m_fontData.size())) {
-            *fragmentStart = m_fontData.data() + fileOffset;
-            return S_OK;
-        } else {
-            *fragmentStart = NULL;
-            return E_FAIL;
-        }
-    }
-
-    void STDMETHODCALLTYPE DirectWriteFontFileStream::ReleaseFileFragment(void *)
-    {
-    }
-
-    HRESULT STDMETHODCALLTYPE DirectWriteFontFileStream::GetFileSize(UINT64 *fileSize)
-    {
-        *fileSize = m_fontData.size();
-        return S_OK;
-    }
-
-    HRESULT STDMETHODCALLTYPE DirectWriteFontFileStream::GetLastWriteTime(UINT64 *lastWriteTime)
-    {
-        *lastWriteTime = 0;
-        return E_NOTIMPL;
-    }
-
-    class DirectWriteFontFileLoader: public IDWriteFontFileLoader
-    {
-    public:
-        DirectWriteFontFileLoader() : m_referenceCount(0) {}
-        virtual ~DirectWriteFontFileLoader()
-        {
-        }
-
-        inline void addKey(const void *key, const QByteArray &fontData)
-        {
-            Q_ASSERT(!m_fontDatas.contains(key));
-            m_fontDatas.insert(key, fontData);
-        }
-
-        inline void removeKey(const void *key)
-        {
-            m_fontDatas.remove(key);
-        }
-
-        HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void **object);
-        ULONG STDMETHODCALLTYPE AddRef();
-        ULONG STDMETHODCALLTYPE Release();
-
-        HRESULT STDMETHODCALLTYPE CreateStreamFromKey(void const *fontFileReferenceKey,
-                                                      UINT32 fontFileReferenceKeySize,
-                                                      OUT IDWriteFontFileStream **fontFileStream);
-
-    private:
-        ULONG m_referenceCount;
-        QHash<const void *, QByteArray> m_fontDatas;
-    };
-
-    HRESULT STDMETHODCALLTYPE DirectWriteFontFileLoader::QueryInterface(const IID &iid,
-                                                                        void **object)
-    {
-        if (iid == IID_IUnknown || iid == __uuidof(IDWriteFontFileLoader)) {
-            *object = this;
-            AddRef();
-            return S_OK;
-        } else {
-            *object = NULL;
-            return E_NOINTERFACE;
-        }
-    }
-
-    ULONG STDMETHODCALLTYPE DirectWriteFontFileLoader::AddRef()
-    {
-        return InterlockedIncrement(&m_referenceCount);
-    }
-
-    ULONG STDMETHODCALLTYPE DirectWriteFontFileLoader::Release()
-    {
-        ULONG newCount = InterlockedDecrement(&m_referenceCount);
-        if (newCount == 0)
-            delete this;
-        return newCount;
-    }
-
-    HRESULT STDMETHODCALLTYPE DirectWriteFontFileLoader::CreateStreamFromKey(
-        void const *fontFileReferenceKey,
-        UINT32 fontFileReferenceKeySize,
-        IDWriteFontFileStream **fontFileStream)
-    {
-        Q_UNUSED(fontFileReferenceKeySize);
-
-        if (fontFileReferenceKeySize != sizeof(const void *)) {
-            qWarning("%s: Wrong key size", __FUNCTION__);
-            return E_FAIL;
-        }
-
-        const void *key = *reinterpret_cast<void * const *>(fontFileReferenceKey);
-        *fontFileStream = NULL;
-        if (!m_fontDatas.contains(key))
-            return E_FAIL;
-
-        QByteArray fontData = m_fontDatas.value(key);
-        DirectWriteFontFileStream *stream = new DirectWriteFontFileStream(fontData);
-        stream->AddRef();
-        *fontFileStream = stream;
-
-        return S_OK;
-    }
-
-    class CustomFontFileLoader
-    {
-    public:
-        CustomFontFileLoader() : m_directWriteFontFileLoader(Q_NULLPTR)
-        {
-            createDirectWriteFactory(&m_directWriteFactory);
-
-            if (m_directWriteFactory) {
-                m_directWriteFontFileLoader = new DirectWriteFontFileLoader();
-                m_directWriteFactory->RegisterFontFileLoader(m_directWriteFontFileLoader);
-            }
-        }
-
-        ~CustomFontFileLoader()
-        {
-            if (m_directWriteFactory != 0 && m_directWriteFontFileLoader != 0)
-                m_directWriteFactory->UnregisterFontFileLoader(m_directWriteFontFileLoader);
-
-            if (m_directWriteFactory != 0)
-                m_directWriteFactory->Release();
-        }
-
-        void addKey(const void *key, const QByteArray &fontData)
-        {
-            if (m_directWriteFontFileLoader != 0)
-                m_directWriteFontFileLoader->addKey(key, fontData);
-        }
-
-        void removeKey(const void *key)
-        {
-            if (m_directWriteFontFileLoader != 0)
-                m_directWriteFontFileLoader->removeKey(key);
-        }
-
-        IDWriteFontFileLoader *loader() const
-        {
-            return m_directWriteFontFileLoader;
-        }
-
-    private:
-        IDWriteFactory *m_directWriteFactory;
-        DirectWriteFontFileLoader *m_directWriteFontFileLoader;
-    };
-
-#endif
-
-} // Anonymous namespace
-
-/*!
-    \struct QWindowsFontEngineData
-    \brief Static constant data shared by the font engines.
-    \ingroup qt-lighthouse-win
-*/
-
-QWindowsFontEngineData::QWindowsFontEngineData()
-    : clearTypeEnabled(false)
-    , fontSmoothingGamma(QWindowsFontDatabase::fontSmoothingGamma())
-#if !defined(QT_NO_DIRECTWRITE)
-    , directWriteFactory(0)
-    , directWriteGdiInterop(0)
-#endif
-{
-    // from qapplication_win.cpp
-    UINT result = 0;
-    if (SystemParametersInfo(SPI_GETFONTSMOOTHINGTYPE, 0, &result, 0))
-        clearTypeEnabled = (result == FE_FONTSMOOTHINGCLEARTYPE);
-
-    const qreal gray_gamma = 2.31;
-    for (int i=0; i<256; ++i)
-        pow_gamma[i] = uint(qRound(qPow(i / qreal(255.), gray_gamma) * 2047));
-
-    HDC displayDC = GetDC(0);
-    hdc = CreateCompatibleDC(displayDC);
-    ReleaseDC(0, displayDC);
-}
-
-QWindowsFontEngineData::~QWindowsFontEngineData()
-{
-    if (hdc)
-        DeleteDC(hdc);
-#if !defined(QT_NO_DIRECTWRITE)
-    if (directWriteGdiInterop)
-        directWriteGdiInterop->Release();
-    if (directWriteFactory)
-        directWriteFactory->Release();
-#endif
-}
-
-qreal QWindowsFontDatabase::fontSmoothingGamma()
-{
-    int winSmooth;
-    qreal result = 1;
-    if (SystemParametersInfo(0x200C /* SPI_GETFONTSMOOTHINGCONTRAST */, 0, &winSmooth, 0))
-        result = qreal(winSmooth) / qreal(1000.0);
-
-    // Safeguard ourselves against corrupt registry values...
-    if (result > 5 || result < 1)
-        result = qreal(1.4);
-    return result;
-}
-
-#if !defined(QT_NO_DIRECTWRITE)
-static inline bool initDirectWrite(QWindowsFontEngineData *d)
-{
-    if (!d->directWriteFactory) {
-        createDirectWriteFactory(&d->directWriteFactory);
-        if (!d->directWriteFactory)
-            return false;
-    }
-    if (!d->directWriteGdiInterop) {
-        const HRESULT  hr = d->directWriteFactory->GetGdiInterop(&d->directWriteGdiInterop);
-        if (FAILED(hr)) {
-            qErrnoWarning("%s: GetGdiInterop failed", __FUNCTION__);
-            return false;
-        }
-    }
-    return true;
-}
-
-#endif // !defined(QT_NO_DIRECTWRITE)
-
-/*!
-    \class QWindowsFontDatabase
-    \brief Font database for Windows
-
-    \note The Qt 4.8 WIndows font database employed a mechanism of
-    delayed population of the database again passing a font name
-    to EnumFontFamiliesEx(), working around the fact that
-    EnumFontFamiliesEx() does not list all fonts by default.
-    This should be introduced to Lighthouse as well?
-
-    \internal
-    \ingroup qt-lighthouse-win
-*/
-
-#ifndef QT_NO_DEBUG_STREAM
-QDebug operator<<(QDebug d, const QFontDef &def)
-{
-    QDebugStateSaver saver(d);
-    d.nospace();
-    d.noquote();
-    d << "QFontDef(Family=\"" << def.family << '"';
-    if (!def.styleName.isEmpty())
-        d << ", stylename=" << def.styleName;
-    d << ", pointsize=" << def.pointSize << ", pixelsize=" << def.pixelSize
-        << ", styleHint=" << def.styleHint << ", weight=" << def.weight
-        << ", stretch=" << def.stretch << ", hintingPreference="
-        << def.hintingPreference << ')';
-    return d;
-}
-
-QDebug operator<<(QDebug d, const LOGFONT &lf)
-{
-    QDebugStateSaver saver(d);
-    d.nospace();
-    d.noquote();
-    d << "LOGFONT(\"" << QString::fromWCharArray(lf.lfFaceName)
-        << "\", lfWidth=" << lf.lfWidth << ", lfHeight=" << lf.lfHeight << ')';
-    return d;
-}
-#endif // !QT_NO_DEBUG_STREAM
-
-static inline QFontDatabase::WritingSystem writingSystemFromCharSet(uchar charSet)
-{
-    switch (charSet) {
-    case ANSI_CHARSET:
-    case EASTEUROPE_CHARSET:
-    case BALTIC_CHARSET:
-    case TURKISH_CHARSET:
-        return QFontDatabase::Latin;
-    case GREEK_CHARSET:
-        return QFontDatabase::Greek;
-    case RUSSIAN_CHARSET:
-        return QFontDatabase::Cyrillic;
-    case HEBREW_CHARSET:
-        return QFontDatabase::Hebrew;
-    case ARABIC_CHARSET:
-        return QFontDatabase::Arabic;
-    case THAI_CHARSET:
-        return QFontDatabase::Thai;
-    case GB2312_CHARSET:
-        return QFontDatabase::SimplifiedChinese;
-    case CHINESEBIG5_CHARSET:
-        return QFontDatabase::TraditionalChinese;
-    case SHIFTJIS_CHARSET:
-        return QFontDatabase::Japanese;
-    case HANGUL_CHARSET:
-    case JOHAB_CHARSET:
-        return QFontDatabase::Korean;
-    case VIETNAMESE_CHARSET:
-        return QFontDatabase::Vietnamese;
-    case SYMBOL_CHARSET:
-        return QFontDatabase::Symbol;
-    default:
-        break;
-    }
-    return QFontDatabase::Any;
-}
-
-#ifdef MAKE_TAG
-#undef MAKE_TAG
-#endif
-// GetFontData expects the tags in little endian ;(
-#define MAKE_TAG(ch1, ch2, ch3, ch4) (\
-    (((quint32)(ch4)) << 24) | \
-    (((quint32)(ch3)) << 16) | \
-    (((quint32)(ch2)) << 8) | \
-    ((quint32)(ch1)) \
-    )
-
-bool localizedName(const QString &name)
-{
-    const QChar *c = name.unicode();
-    for (int i = 0; i < name.length(); ++i) {
-        if (c[i].unicode() >= 0x100)
-            return true;
-    }
-    return false;
-}
-
-static inline quint16 getUShort(const unsigned char *p)
-{
-    quint16 val;
-    val = *p++ << 8;
-    val |= *p;
-
-    return val;
-}
-
-namespace {
-
-struct FontNames {
-    QString name;   // e.g. "DejaVu Sans Condensed"
-    QString style;  // e.g. "Italic"
-    QString preferredName;  // e.g. "DejaVu Sans"
-    QString preferredStyle; // e.g. "Condensed Italic"
-};
-
-static QString readName(bool unicode, const uchar *string, int length)
-{
-    QString out;
-    if (unicode) {
-        // utf16
-
-        length /= 2;
-        out.resize(length);
-        QChar *uc = out.data();
-        for (int i = 0; i < length; ++i)
-            uc[i] = getUShort(string + 2*i);
-    } else {
-        // Apple Roman
-
-        out.resize(length);
-        QChar *uc = out.data();
-        for (int i = 0; i < length; ++i)
-            uc[i] = QLatin1Char(char(string[i]));
-    }
-    return out;
-}
-
-enum FieldTypeValue {
-    FamilyId = 1,
-    StyleId = 2,
-    PreferredFamilyId = 16,
-    PreferredStyleId = 17,
-};
-
-enum PlatformFieldValue {
-    PlatformId_Unicode = 0,
-    PlatformId_Apple = 1,
-    PlatformId_Microsoft = 3
-};
-
-static FontNames getCanonicalFontNames(const uchar *table, quint32 bytes)
-{
-    FontNames out;
-    const int NameRecordSize = 12;
-    const int MS_LangIdEnglish = 0x009;
-
-    // get the name table
-    quint16 count;
-    quint16 string_offset;
-    const unsigned char *names;
-
-    if (bytes < 8)
-        return out;
-
-    if (getUShort(table) != 0)
-        return out;
-
-    count = getUShort(table+2);
-    string_offset = getUShort(table+4);
-    names = table + 6;
-
-    if (string_offset >= bytes || 6 + count*NameRecordSize > string_offset)
-        return out;
-
-    enum PlatformIdType {
-        NotFound = 0,
-        Unicode = 1,
-        Apple = 2,
-        Microsoft = 3
-    };
-
-    PlatformIdType idStatus[4] = { NotFound, NotFound, NotFound, NotFound };
-    int ids[4] = { -1, -1, -1, -1 };
-
-    for (int i = 0; i < count; ++i) {
-        // search for the correct name entries
-
-        quint16 platform_id = getUShort(names + i*NameRecordSize);
-        quint16 encoding_id = getUShort(names + 2 + i*NameRecordSize);
-        quint16 language_id = getUShort(names + 4 + i*NameRecordSize);
-        quint16 name_id = getUShort(names + 6 + i*NameRecordSize);
-
-        PlatformIdType *idType = nullptr;
-        int *id = nullptr;
-
-        switch (name_id) {
-        case FamilyId:
-            idType = &idStatus[0];
-            id = &ids[0];
-            break;
-        case StyleId:
-            idType = &idStatus[1];
-            id = &ids[1];
-            break;
-        case PreferredFamilyId:
-            idType = &idStatus[2];
-            id = &ids[2];
-            break;
-        case PreferredStyleId:
-            idType = &idStatus[3];
-            id = &ids[3];
-            break;
-        default:
-            continue;
-        }
-
-        quint16 length = getUShort(names + 8 + i*NameRecordSize);
-        quint16 offset = getUShort(names + 10 + i*NameRecordSize);
-        if (DWORD(string_offset + offset + length) > bytes)
-            continue;
-
-        if ((platform_id == PlatformId_Microsoft
-            && (encoding_id == 0 || encoding_id == 1))
-            && (language_id & 0x3ff) == MS_LangIdEnglish
-            && *idType < Microsoft) {
-            *id = i;
-            *idType = Microsoft;
-        }
-        // not sure if encoding id 4 for Unicode is utf16 or ucs4...
-        else if (platform_id == PlatformId_Unicode && encoding_id < 4 && *idType < Unicode) {
-            *id = i;
-            *idType = Unicode;
-        }
-        else if (platform_id == PlatformId_Apple && encoding_id == 0 && language_id == 0 && *idType < Apple) {
-            *id = i;
-            *idType = Apple;
-        }
-    }
-
-    QString strings[4];
-    for (int i = 0; i < 4; ++i) {
-        if (idStatus[i] == NotFound)
-            continue;
-        int id = ids[i];
-        quint16 length = getUShort(names +  8 + id * NameRecordSize);
-        quint16 offset = getUShort(names + 10 + id * NameRecordSize);
-        const unsigned char *string = table + string_offset + offset;
-        strings[i] = readName(idStatus[i] != Apple, string, length);
-    }
-
-    out.name = strings[0];
-    out.style = strings[1];
-    out.preferredName = strings[2];
-    out.preferredStyle = strings[3];
-    return out;
-}
-
-} // namespace
-
-QString getEnglishName(const QString &familyName, bool includeStyle = false)
-{
-    QString i18n_name;
-    QString faceName = familyName;
-    faceName.truncate(LF_FACESIZE - 1);
-
-    HDC hdc = GetDC( 0 );
-    LOGFONT lf;
-    memset(&lf, 0, sizeof(LOGFONT));
-    faceName.toWCharArray(lf.lfFaceName);
-    lf.lfFaceName[faceName.size()] = 0;
-    lf.lfCharSet = DEFAULT_CHARSET;
-    HFONT hfont = CreateFontIndirect(&lf);
-
-    if (!hfont) {
-        ReleaseDC(0, hdc);
-        return QString();
-    }
-
-    HGDIOBJ oldobj = SelectObject( hdc, hfont );
-
-    const DWORD name_tag = MAKE_TAG( 'n', 'a', 'm', 'e' );
-
-    // get the name table
-    unsigned char *table = 0;
-
-    DWORD bytes = GetFontData( hdc, name_tag, 0, 0, 0 );
-    if ( bytes == GDI_ERROR ) {
-        // ### Unused variable
-        // int err = GetLastError();
-        goto error;
-    }
-
-    table = new unsigned char[bytes];
-    GetFontData(hdc, name_tag, 0, table, bytes);
-    if ( bytes == GDI_ERROR )
-        goto error;
-
-    {
-        const FontNames names = getCanonicalFontNames(table, bytes);
-        i18n_name = names.name;
-        if (includeStyle)
-            i18n_name += QLatin1Char(' ') + names.style;
-    }
-error:
-    delete [] table;
-    SelectObject( hdc, oldobj );
-    DeleteObject( hfont );
-    ReleaseDC( 0, hdc );
-
-    //qDebug("got i18n name of '%s' for font '%s'", i18n_name.latin1(), familyName.toLocal8Bit().data());
-    return i18n_name;
-}
-
-static bool addFontToDatabase(const QString &familyName, const QString &styleName, uchar charSet,
-                              const TEXTMETRIC *textmetric,
-                              const FONTSIGNATURE *signature,
-                              int type,
-                              bool registerAlias)
-{
-    // the "@family" fonts are just the same as "family". Ignore them.
-    if (familyName.isEmpty() || familyName.at(0) == QLatin1Char('@') || familyName.startsWith(QLatin1String("WST_")))
-        return false;
-
-    static const int SMOOTH_SCALABLE = 0xffff;
-    const QString foundryName; // No such concept.
-    const bool fixed = !(textmetric->tmPitchAndFamily & TMPF_FIXED_PITCH);
-    const bool ttf = (textmetric->tmPitchAndFamily & TMPF_TRUETYPE);
-    const bool scalable = textmetric->tmPitchAndFamily & (TMPF_VECTOR|TMPF_TRUETYPE);
-    const int size = scalable ? SMOOTH_SCALABLE : textmetric->tmHeight;
-    const QFont::Style style = textmetric->tmItalic ? QFont::StyleItalic : QFont::StyleNormal;
-    const bool antialias = false;
-    const QFont::Weight weight = QPlatformFontDatabase::weightFromInteger(textmetric->tmWeight);
-    const QFont::Stretch stretch = QFont::Unstretched;
-
-#ifndef QT_NO_DEBUG_OUTPUT
-    if (QWindowsContext::verbose > 2) {
-        QString message;
-        QTextStream str(&message);
-        str << __FUNCTION__ << ' ' << familyName << ' ' << charSet << " TTF=" << ttf;
-        if (type & DEVICE_FONTTYPE)
-            str << " DEVICE";
-        if (type & RASTER_FONTTYPE)
-            str << " RASTER";
-        if (type & TRUETYPE_FONTTYPE)
-            str << " TRUETYPE";
-        str << " scalable=" << scalable << " Size=" << size
-                << " Style=" << style << " Weight=" << weight
-                << " stretch=" << stretch;
-        qCDebug(lcQpaFonts) << message;
-    }
-#endif
-
-    QString englishName;
-    if (registerAlias && ttf && localizedName(familyName))
-        englishName = getEnglishName(familyName);
-
-    QSupportedWritingSystems writingSystems;
-    if (type & TRUETYPE_FONTTYPE) {
-        Q_ASSERT(signature);
-        quint32 unicodeRange[4] = {
-            signature->fsUsb[0], signature->fsUsb[1],
-            signature->fsUsb[2], signature->fsUsb[3]
-        };
-        quint32 codePageRange[2] = {
-            signature->fsCsb[0], signature->fsCsb[1]
-        };
-        writingSystems = QPlatformFontDatabase::writingSystemsFromTrueTypeBits(unicodeRange, codePageRange);
-        // ### Hack to work around problem with Thai text on Windows 7. Segoe UI contains
-        // the symbol for Baht, and Windows thus reports that it supports the Thai script.
-        // Since it's the default UI font on this platform, most widgets will be unable to
-        // display Thai text by default. As a temporary work around, we special case Segoe UI
-        // and remove the Thai script from its list of supported writing systems.
-        if (writingSystems.supported(QFontDatabase::Thai) &&
-                familyName == QLatin1String("Segoe UI"))
-            writingSystems.setSupported(QFontDatabase::Thai, false);
-    } else {
-        const QFontDatabase::WritingSystem ws = writingSystemFromCharSet(charSet);
-        if (ws != QFontDatabase::Any)
-            writingSystems.setSupported(ws);
-    }
-
-    QPlatformFontDatabase::registerFont(familyName, styleName, foundryName, weight,
-                                        style, stretch, antialias, scalable, size, fixed, writingSystems, 0);
-    // add fonts windows can generate for us:
-    if (weight <= QFont::DemiBold && styleName.isEmpty())
-        QPlatformFontDatabase::registerFont(familyName, QString(), foundryName, QFont::Bold,
-                                            style, stretch, antialias, scalable, size, fixed, writingSystems, 0);
-    if (style != QFont::StyleItalic && styleName.isEmpty())
-        QPlatformFontDatabase::registerFont(familyName, QString(), foundryName, weight,
-                                            QFont::StyleItalic, stretch, antialias, scalable, size, fixed, writingSystems, 0);
-    if (weight <= QFont::DemiBold && style != QFont::StyleItalic && styleName.isEmpty())
-        QPlatformFontDatabase::registerFont(familyName, QString(), foundryName, QFont::Bold,
-                                            QFont::StyleItalic, stretch, antialias, scalable, size, fixed, writingSystems, 0);
-
-    if (!englishName.isEmpty())
-        QPlatformFontDatabase::registerAliasToFontFamily(familyName, englishName);
-
-    return true;
-}
-
-static int QT_WIN_CALLBACK storeFont(const LOGFONT *logFont, const TEXTMETRIC *textmetric,
-                                     DWORD type, LPARAM lParam)
-{
-    const ENUMLOGFONTEX *f = reinterpret_cast<const ENUMLOGFONTEX *>(logFont);
-    const QString familyName = QString::fromWCharArray(f->elfLogFont.lfFaceName);
-    const QString styleName = QString::fromWCharArray(f->elfStyle);
-    const uchar charSet = f->elfLogFont.lfCharSet;
-    const bool registerAlias = bool(lParam);
-
-    // NEWTEXTMETRICEX (passed for TT fonts) is a NEWTEXTMETRIC, which according
-    // to the documentation is identical to a TEXTMETRIC except for the last four
-    // members, which we don't use anyway
-    const FONTSIGNATURE *signature = Q_NULLPTR;
-    if (type & TRUETYPE_FONTTYPE)
-        signature = &reinterpret_cast<const NEWTEXTMETRICEX *>(textmetric)->ntmFontSig;
-    addFontToDatabase(familyName, styleName, charSet, textmetric, signature, type, registerAlias);
-
-    // keep on enumerating
-    return 1;
-}
-
-void QWindowsFontDatabase::populateFamily(const QString &familyName, bool registerAlias)
-{
-    qCDebug(lcQpaFonts) << familyName;
-    if (familyName.size() >= LF_FACESIZE) {
-        qCWarning(lcQpaFonts) << "Unable to enumerate family '" << familyName << '\'';
-        return;
-    }
-    HDC dummy = GetDC(0);
-    LOGFONT lf;
-    lf.lfCharSet = DEFAULT_CHARSET;
-    familyName.toWCharArray(lf.lfFaceName);
-    lf.lfFaceName[familyName.size()] = 0;
-    lf.lfPitchAndFamily = 0;
-    EnumFontFamiliesEx(dummy, &lf, storeFont, LPARAM(registerAlias), 0);
-    ReleaseDC(0, dummy);
-}
-
-void QWindowsFontDatabase::populateFamily(const QString &familyName)
-{
-    populateFamily(familyName, false);
-}
-
-namespace {
-// Context for enumerating system fonts, records whether the default font has been encountered,
-// which is normally not enumerated by EnumFontFamiliesEx().
-struct PopulateFamiliesContext
-{
-    PopulateFamiliesContext(const QString &f) : systemDefaultFont(f), seenSystemDefaultFont(false) {}
-
-    QString systemDefaultFont;
-    bool seenSystemDefaultFont;
-};
-} // namespace
-
-static int QT_WIN_CALLBACK populateFontFamilies(const LOGFONT *logFont, const TEXTMETRIC *textmetric,
-                                                DWORD, LPARAM lparam)
-{
-    // the "@family" fonts are just the same as "family". Ignore them.
-    const ENUMLOGFONTEX *f = reinterpret_cast<const ENUMLOGFONTEX *>(logFont);
-    const wchar_t *faceNameW = f->elfLogFont.lfFaceName;
-    if (faceNameW[0] && faceNameW[0] != L'@' && wcsncmp(faceNameW, L"WST_", 4)) {
-        const QString faceName = QString::fromWCharArray(faceNameW);
-        QPlatformFontDatabase::registerFontFamily(faceName);
-        PopulateFamiliesContext *context = reinterpret_cast<PopulateFamiliesContext *>(lparam);
-        if (!context->seenSystemDefaultFont && faceName == context->systemDefaultFont)
-            context->seenSystemDefaultFont = true;
-
-        // Register current font's english name as alias
-        const bool ttf = textmetric->tmPitchAndFamily & TMPF_TRUETYPE;
-        if (ttf && localizedName(faceName)) {
-            const QString englishName = getEnglishName(faceName);
-            if (!englishName.isEmpty()) {
-                QPlatformFontDatabase::registerAliasToFontFamily(faceName, englishName);
-                // Check whether the system default font name is an alias of the current font family name,
-                // as on Chinese Windows, where the system font "SimSun" is an alias to a font registered under a local name
-                if (!context->seenSystemDefaultFont && englishName == context->systemDefaultFont)
-                    context->seenSystemDefaultFont = true;
-            }
-        }
-    }
-    return 1; // continue
-}
-
-void QWindowsFontDatabase::populateFontDatabase()
-{
-    removeApplicationFonts();
-    HDC dummy = GetDC(0);
-    LOGFONT lf;
-    lf.lfCharSet = DEFAULT_CHARSET;
-    lf.lfFaceName[0] = 0;
-    lf.lfPitchAndFamily = 0;
-    PopulateFamiliesContext context(QWindowsFontDatabase::systemDefaultFont().family());
-    EnumFontFamiliesEx(dummy, &lf, populateFontFamilies, reinterpret_cast<LPARAM>(&context), 0);
-    ReleaseDC(0, dummy);
-    // Work around EnumFontFamiliesEx() not listing the system font.
-    if (!context.seenSystemDefaultFont)
-        QPlatformFontDatabase::registerFontFamily(context.systemDefaultFont);
-}
-
-typedef QSharedPointer<QWindowsFontEngineData> QWindowsFontEngineDataPtr;
-
-#ifndef QT_NO_THREAD
-typedef QThreadStorage<QWindowsFontEngineDataPtr> FontEngineThreadLocalData;
-
-Q_GLOBAL_STATIC(FontEngineThreadLocalData, fontEngineThreadLocalData)
-
-QSharedPointer<QWindowsFontEngineData> sharedFontData()
-{
-    FontEngineThreadLocalData *data = fontEngineThreadLocalData();
-    if (!data->hasLocalData())
-        data->setLocalData(QSharedPointer<QWindowsFontEngineData>::create());
-    return data->localData();
-}
-#else // !QT_NO_THREAD
-Q_GLOBAL_STATIC(QWindowsFontEngineDataPtr, fontEngineData)
-
-QWindowsFontEngineDataPtr sharedFontData()
-{
-    QWindowsFontEngineDataPtr *data = fontEngineData();
-    if (data->isNull())
-        *data = QWindowsFontEngineDataPtr::create();
-    return *data;
-}
-#endif // QT_NO_THREAD
-
-extern Q_GUI_EXPORT bool qt_needs_a8_gamma_correction;
-
-QWindowsFontDatabase::QWindowsFontDatabase()
-{
-    // Properties accessed by QWin32PrintEngine (Qt Print Support)
-    static const int hfontMetaTypeId = qRegisterMetaType<HFONT>();
-    static const int logFontMetaTypeId = qRegisterMetaType<LOGFONT>();
-    Q_UNUSED(hfontMetaTypeId)
-    Q_UNUSED(logFontMetaTypeId)
-
-    if (lcQpaFonts().isDebugEnabled()) {
-        const QWindowsFontEngineDataPtr data = sharedFontData();
-        qCDebug(lcQpaFonts) << __FUNCTION__ << "Clear type: "
-            << data->clearTypeEnabled << "gamma: " << data->fontSmoothingGamma;
-    }
-    qt_needs_a8_gamma_correction = true;
-}
-
-QWindowsFontDatabase::~QWindowsFontDatabase()
-{
-    removeApplicationFonts();
-}
-
-QFontEngineMulti *QWindowsFontDatabase::fontEngineMulti(QFontEngine *fontEngine, QChar::Script script)
-{
-    return new QWindowsMultiFontEngine(fontEngine, script);
-}
-
-QFontEngine * QWindowsFontDatabase::fontEngine(const QFontDef &fontDef, void *handle)
-{
-    QFontEngine *fe = QWindowsFontDatabase::createEngine(fontDef,
-                                                         QWindowsContext::instance()->defaultDPI(),
-                                                         sharedFontData());
-    qCDebug(lcQpaFonts) << __FUNCTION__ << "FONTDEF" << fontDef << fe << handle;
-    return fe;
-}
-
-QFontEngine *QWindowsFontDatabase::fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference)
-{
-    EmbeddedFont font(fontData);
-    QFontEngine *fontEngine = 0;
-
-#if !defined(QT_NO_DIRECTWRITE)
-    if (!useDirectWrite(hintingPreference))
-#endif
-    {
-        GUID guid;
-        CoCreateGuid(&guid);
-
-QT_WARNING_PUSH
-QT_WARNING_DISABLE_GCC("-Wstrict-aliasing")
-        QString uniqueFamilyName = QLatin1Char('f')
-                + QString::number(guid.Data1, 36) + QLatin1Char('-')
-                + QString::number(guid.Data2, 36) + QLatin1Char('-')
-                + QString::number(guid.Data3, 36) + QLatin1Char('-')
-                + QString::number(*reinterpret_cast<quint64 *>(guid.Data4), 36);
-QT_WARNING_POP
-
-        QString actualFontName = font.changeFamilyName(uniqueFamilyName);
-        if (actualFontName.isEmpty()) {
-            qWarning("%s: Can't change family name of font", __FUNCTION__);
-            return 0;
-        }
-
-        DWORD count = 0;
-        QByteArray newFontData = font.data();
-        HANDLE fontHandle =
-            AddFontMemResourceEx(const_cast<char *>(newFontData.constData()),
-                                 DWORD(newFontData.size()), 0, &count);
-        if (count == 0 && fontHandle != 0) {
-            RemoveFontMemResourceEx(fontHandle);
-            fontHandle = 0;
-        }
-
-        if (fontHandle == 0) {
-            qWarning("%s: AddFontMemResourceEx failed", __FUNCTION__);
-        } else {
-            QFontDef request;
-            request.family = uniqueFamilyName;
-            request.pixelSize = pixelSize;
-            request.styleStrategy = QFont::PreferMatch;
-            request.hintingPreference = hintingPreference;
-            request.stretch = QFont::Unstretched;
-
-            fontEngine = QWindowsFontDatabase::createEngine(request,
-                                                            QWindowsContext::instance()->defaultDPI(),
-                                                            sharedFontData());
-
-            if (fontEngine) {
-                if (request.family != fontEngine->fontDef.family) {
-                    qWarning("%s: Failed to load font. Got fallback instead: %s",
-                             __FUNCTION__, qPrintable(fontEngine->fontDef.family));
-                    if (fontEngine->ref.load() == 0)
-                        delete fontEngine;
-                    fontEngine = 0;
-                } else {
-                    Q_ASSERT(fontEngine->ref.load() == 0);
-
-                    // Override the generated font name
-                    switch (fontEngine->type()) {
-                    case QFontEngine::Win:
-                        static_cast<QWindowsFontEngine *>(fontEngine)->setUniqueFamilyName(uniqueFamilyName);
-                        fontEngine->fontDef.family = actualFontName;
-                        break;
-
-#if !defined(QT_NO_DIRECTWRITE)
-                    case QFontEngine::DirectWrite:
-                        static_cast<QWindowsFontEngineDirectWrite *>(fontEngine)->setUniqueFamilyName(uniqueFamilyName);
-                        fontEngine->fontDef.family = actualFontName;
-                        break;
-#endif // !QT_NO_DIRECTWRITE
-
-                    default:
-                        Q_ASSERT_X(false, Q_FUNC_INFO, "Unhandled font engine.");
-                    }
-
-                    UniqueFontData uniqueData;
-                    uniqueData.handle = fontHandle;
-                    uniqueData.refCount.ref();
-                    m_uniqueFontData[uniqueFamilyName] = uniqueData;
-                }
-            } else {
-                RemoveFontMemResourceEx(fontHandle);
-            }
-        }
-    }
-#if !defined(QT_NO_DIRECTWRITE)
-    else {
-        CustomFontFileLoader fontFileLoader;
-        fontFileLoader.addKey(this, fontData);
-
-        QSharedPointer<QWindowsFontEngineData> fontEngineData = sharedFontData();
-        if (!initDirectWrite(fontEngineData.data()))
-            return 0;
-
-        IDWriteFontFile *fontFile = 0;
-        void *key = this;
-
-        HRESULT hres = fontEngineData->directWriteFactory->CreateCustomFontFileReference(&key,
-                                                                                         sizeof(void *),
-                                                                                         fontFileLoader.loader(),
-                                                                                         &fontFile);
-        if (FAILED(hres)) {
-            qErrnoWarning(hres, "%s: CreateCustomFontFileReference failed", __FUNCTION__);
-            return 0;
-        }
-
-        BOOL isSupportedFontType;
-        DWRITE_FONT_FILE_TYPE fontFileType;
-        DWRITE_FONT_FACE_TYPE fontFaceType;
-        UINT32 numberOfFaces;
-        fontFile->Analyze(&isSupportedFontType, &fontFileType, &fontFaceType, &numberOfFaces);
-        if (!isSupportedFontType) {
-            fontFile->Release();
-            return 0;
-        }
-
-        IDWriteFontFace *directWriteFontFace = 0;
-        hres = fontEngineData->directWriteFactory->CreateFontFace(fontFaceType,
-                                                                  1,
-                                                                  &fontFile,
-                                                                  0,
-                                                                  DWRITE_FONT_SIMULATIONS_NONE,
-                                                                  &directWriteFontFace);
-        if (FAILED(hres)) {
-            qErrnoWarning(hres, "%s: CreateFontFace failed", __FUNCTION__);
-            fontFile->Release();
-            return 0;
-        }
-
-        fontFile->Release();
-
-        fontEngine = new QWindowsFontEngineDirectWrite(directWriteFontFace,
-                                                       pixelSize,
-                                                       fontEngineData);
-
-        // Get font family from font data
-        fontEngine->fontDef.family = font.familyName();
-        fontEngine->fontDef.hintingPreference = hintingPreference;
-
-        directWriteFontFace->Release();
-    }
-#endif
-
-    // Get style and weight info
-    if (fontEngine != 0) {
-        TableDirectory *os2TableEntry = font.tableDirectoryEntry("OS/2");
-        if (os2TableEntry != 0) {
-            const OS2Table *os2Table =
-                    reinterpret_cast<const OS2Table *>(fontData.constData()
-                                                       + qFromBigEndian<quint32>(os2TableEntry->offset));
-
-            bool italic = qFromBigEndian<quint16>(os2Table->selection) & 1;
-            bool oblique = qFromBigEndian<quint16>(os2Table->selection) & 128;
-
-            if (italic)
-                fontEngine->fontDef.style = QFont::StyleItalic;
-            else if (oblique)
-                fontEngine->fontDef.style = QFont::StyleOblique;
-            else
-                fontEngine->fontDef.style = QFont::StyleNormal;
-
-            fontEngine->fontDef.weight = QPlatformFontDatabase::weightFromInteger(qFromBigEndian<quint16>(os2Table->weightClass));
-        }
-    }
-
-    qCDebug(lcQpaFonts) << __FUNCTION__ << "FONTDATA" << fontData << pixelSize << hintingPreference << fontEngine;
-    return fontEngine;
-}
-
-static QList<quint32> getTrueTypeFontOffsets(const uchar *fontData)
-{
-    QList<quint32> offsets;
-    const quint32 headerTag = *reinterpret_cast<const quint32 *>(fontData);
-    if (headerTag != MAKE_TAG('t', 't', 'c', 'f')) {
-        if (headerTag != MAKE_TAG(0, 1, 0, 0)
-            && headerTag != MAKE_TAG('O', 'T', 'T', 'O')
-            && headerTag != MAKE_TAG('t', 'r', 'u', 'e')
-            && headerTag != MAKE_TAG('t', 'y', 'p', '1'))
-            return offsets;
-        offsets << 0;
-        return offsets;
-    }
-    const quint32 numFonts = qFromBigEndian<quint32>(fontData + 8);
-    for (uint i = 0; i < numFonts; ++i) {
-        offsets << qFromBigEndian<quint32>(fontData + 12 + i * 4);
-    }
-    return offsets;
-}
-
-static void getFontTable(const uchar *fileBegin, const uchar *data, quint32 tag, const uchar **table, quint32 *length)
-{
-    const quint16 numTables = qFromBigEndian<quint16>(data + 4);
-    for (uint i = 0; i < numTables; ++i) {
-        const quint32 offset = 12 + 16 * i;
-        if (*reinterpret_cast<const quint32 *>(data + offset) == tag) {
-            *table = fileBegin + qFromBigEndian<quint32>(data + offset + 8);
-            *length = qFromBigEndian<quint32>(data + offset + 12);
-            return;
-        }
-    }
-    *table = 0;
-    *length = 0;
-    return;
-}
-
-static void getFamiliesAndSignatures(const QByteArray &fontData,
-                                     QList<FontNames> *families,
-                                     QVector<FONTSIGNATURE> *signatures)
-{
-    const uchar *data = reinterpret_cast<const uchar *>(fontData.constData());
-
-    QList<quint32> offsets = getTrueTypeFontOffsets(data);
-    if (offsets.isEmpty())
-        return;
-
-    for (int i = 0; i < offsets.count(); ++i) {
-        const uchar *font = data + offsets.at(i);
-        const uchar *table;
-        quint32 length;
-        getFontTable(data, font, MAKE_TAG('n', 'a', 'm', 'e'), &table, &length);
-        if (!table)
-            continue;
-        FontNames names = getCanonicalFontNames(table, length);
-        if (names.name.isEmpty())
-            continue;
-
-        families->append(qMove(names));
-
-        if (signatures) {
-            FONTSIGNATURE signature;
-            getFontTable(data, font, MAKE_TAG('O', 'S', '/', '2'), &table, &length);
-            if (table && length >= 86) {
-                // Offsets taken from OS/2 table in the TrueType spec
-                signature.fsUsb[0] = qFromBigEndian<quint32>(table + 42);
-                signature.fsUsb[1] = qFromBigEndian<quint32>(table + 46);
-                signature.fsUsb[2] = qFromBigEndian<quint32>(table + 50);
-                signature.fsUsb[3] = qFromBigEndian<quint32>(table + 54);
-
-                signature.fsCsb[0] = qFromBigEndian<quint32>(table + 78);
-                signature.fsCsb[1] = qFromBigEndian<quint32>(table + 82);
-            } else {
-                memset(&signature, 0, sizeof(signature));
-            }
-            signatures->append(signature);
-        }
-    }
-}
-
-QStringList QWindowsFontDatabase::addApplicationFont(const QByteArray &fontData, const QString &fileName)
-{
-    WinApplicationFont font;
-    font.fileName = fileName;
-    QVector<FONTSIGNATURE> signatures;
-    QList<FontNames> families;
-    QStringList familyNames;
-
-    if (!fontData.isEmpty()) {
-        getFamiliesAndSignatures(fontData, &families, &signatures);
-        if (families.isEmpty())
-            return familyNames;
-
-        DWORD dummy = 0;
-        font.handle =
-            AddFontMemResourceEx(const_cast<char *>(fontData.constData()),
-                                 DWORD(fontData.size()), 0, &dummy);
-        if (font.handle == 0)
-            return QStringList();
-
-        // Memory fonts won't show up in enumeration, so do add them the hard way.
-        for (int j = 0; j < families.count(); ++j) {
-            const QString familyName = families.at(j).name;
-            const QString styleName = families.at(j).style;
-            familyNames << familyName;
-            HDC hdc = GetDC(0);
-            LOGFONT lf;
-            memset(&lf, 0, sizeof(LOGFONT));
-            memcpy(lf.lfFaceName, familyName.utf16(), sizeof(wchar_t) * qMin(LF_FACESIZE - 1, familyName.size()));
-            lf.lfCharSet = DEFAULT_CHARSET;
-            HFONT hfont = CreateFontIndirect(&lf);
-            HGDIOBJ oldobj = SelectObject(hdc, hfont);
-
-            TEXTMETRIC textMetrics;
-            GetTextMetrics(hdc, &textMetrics);
-
-            addFontToDatabase(familyName, styleName, lf.lfCharSet, &textMetrics, &signatures.at(j),
-                              TRUETYPE_FONTTYPE, true);
-
-            SelectObject(hdc, oldobj);
-            DeleteObject(hfont);
-            ReleaseDC(0, hdc);
-        }
-    } else {
-        QFile f(fileName);
-        if (!f.open(QIODevice::ReadOnly))
-            return QStringList();
-        QByteArray data = f.readAll();
-        f.close();
-
-        getFamiliesAndSignatures(data, &families, 0);
-        if (families.isEmpty())
-            return QStringList();
-
-        if (AddFontResourceExW((wchar_t*)fileName.utf16(), FR_PRIVATE, 0) == 0)
-            return QStringList();
-
-        font.handle = 0;
-
-        // Fonts based on files are added via populate, as they will show up in font enumeration.
-        for (int j = 0; j < families.count(); ++j) {
-            const QString familyName = families.at(j).name;
-            familyNames << familyName;
-            populateFamily(familyName, true);
-        }
-    }
-
-    m_applicationFonts << font;
-
-    return familyNames;
-}
-
-void QWindowsFontDatabase::removeApplicationFonts()
-{
-    foreach (const WinApplicationFont &font, m_applicationFonts) {
-        if (font.handle) {
-            RemoveFontMemResourceEx(font.handle);
-        } else {
-            RemoveFontResourceExW((LPCWSTR)font.fileName.utf16(), FR_PRIVATE, 0);
-        }
-    }
-    m_applicationFonts.clear();
-}
-
-void QWindowsFontDatabase::releaseHandle(void * /* handle */)
-{
-}
-
-QString QWindowsFontDatabase::fontDir() const
-{
-    const QString result = QPlatformFontDatabase::fontDir();
-    qCDebug(lcQpaFonts) << __FUNCTION__ << result;
-    return result;
-}
-
-bool QWindowsFontDatabase::fontsAlwaysScalable() const
-{
-    return true;
-}
-
-void QWindowsFontDatabase::derefUniqueFont(const QString &uniqueFont)
-{
-    if (m_uniqueFontData.contains(uniqueFont)) {
-        if (!m_uniqueFontData[uniqueFont].refCount.deref()) {
-            RemoveFontMemResourceEx(m_uniqueFontData[uniqueFont].handle);
-            m_uniqueFontData.remove(uniqueFont);
-        }
-    }
-}
-
-void QWindowsFontDatabase::refUniqueFont(const QString &uniqueFont)
-{
-    if (m_uniqueFontData.contains(uniqueFont))
-        m_uniqueFontData[uniqueFont].refCount.ref();
-}
-
-HFONT QWindowsFontDatabase::systemFont()
-{
-    static const HFONT stock_sysfont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
-    return stock_sysfont;
-}
-
-// Creation functions
-
-static const char *other_tryFonts[] = {
-    "Arial",
-    "MS UI Gothic",
-    "Gulim",
-    "SimSun",
-    "PMingLiU",
-    "Arial Unicode MS",
-    0
-};
-
-static const char *jp_tryFonts [] = {
-    "MS UI Gothic",
-    "Arial",
-    "Gulim",
-    "SimSun",
-    "PMingLiU",
-    "Arial Unicode MS",
-    0
-};
-
-static const char *ch_CN_tryFonts [] = {
-    "SimSun",
-    "Arial",
-    "PMingLiU",
-    "Gulim",
-    "MS UI Gothic",
-    "Arial Unicode MS",
-    0
-};
-
-static const char *ch_TW_tryFonts [] = {
-    "PMingLiU",
-    "Arial",
-    "SimSun",
-    "Gulim",
-    "MS UI Gothic",
-    "Arial Unicode MS",
-    0
-};
-
-static const char *kr_tryFonts[] = {
-    "Gulim",
-    "Arial",
-    "PMingLiU",
-    "SimSun",
-    "MS UI Gothic",
-    "Arial Unicode MS",
-    0
-};
-
-static const char **tryFonts = 0;
-
-LOGFONT QWindowsFontDatabase::fontDefToLOGFONT(const QFontDef &request)
-{
-    LOGFONT lf;
-    memset(&lf, 0, sizeof(LOGFONT));
-
-    lf.lfHeight = -qRound(request.pixelSize);
-    lf.lfWidth                = 0;
-    lf.lfEscapement        = 0;
-    lf.lfOrientation        = 0;
-    if (request.weight == 50)
-        lf.lfWeight = FW_DONTCARE;
-    else
-        lf.lfWeight = (request.weight*900)/99;
-    lf.lfItalic         = request.style != QFont::StyleNormal;
-    lf.lfCharSet        = DEFAULT_CHARSET;
-
-    int strat = OUT_DEFAULT_PRECIS;
-    if (request.styleStrategy & QFont::PreferBitmap) {
-        strat = OUT_RASTER_PRECIS;
-    } else if (request.styleStrategy & QFont::PreferDevice) {
-        strat = OUT_DEVICE_PRECIS;
-    } else if (request.styleStrategy & QFont::PreferOutline) {
-        strat = OUT_OUTLINE_PRECIS;
-    } else if (request.styleStrategy & QFont::ForceOutline) {
-        strat = OUT_TT_ONLY_PRECIS;
-    }
-
-    lf.lfOutPrecision   = strat;
-
-    int qual = DEFAULT_QUALITY;
-
-    if (request.styleStrategy & QFont::PreferMatch)
-        qual = DRAFT_QUALITY;
-    else if (request.styleStrategy & QFont::PreferQuality)
-        qual = PROOF_QUALITY;
-
-    if (request.styleStrategy & QFont::PreferAntialias) {
-        if (QSysInfo::WindowsVersion >= QSysInfo::WV_XP && !(request.styleStrategy & QFont::NoSubpixelAntialias)) {
-            qual = CLEARTYPE_QUALITY;
-        } else {
-            qual = ANTIALIASED_QUALITY;
-        }
-    } else if (request.styleStrategy & QFont::NoAntialias) {
-        qual = NONANTIALIASED_QUALITY;
-    } else if ((request.styleStrategy & QFont::NoSubpixelAntialias) && sharedFontData()->clearTypeEnabled) {
-        qual = ANTIALIASED_QUALITY;
-    }
-
-    lf.lfQuality        = qual;
-
-    lf.lfClipPrecision  = CLIP_DEFAULT_PRECIS;
-
-    int hint = FF_DONTCARE;
-    switch (request.styleHint) {
-        case QFont::Helvetica:
-            hint = FF_SWISS;
-            break;
-        case QFont::Times:
-            hint = FF_ROMAN;
-            break;
-        case QFont::Courier:
-            hint = FF_MODERN;
-            break;
-        case QFont::OldEnglish:
-            hint = FF_DECORATIVE;
-            break;
-        case QFont::System:
-            hint = FF_MODERN;
-            break;
-        default:
-            break;
-    }
-
-    lf.lfPitchAndFamily = DEFAULT_PITCH | hint;
-
-    QString fam = request.family;
-    if (Q_UNLIKELY(fam.size() >= LF_FACESIZE)) {
-        qCritical("%s: Family name '%s' is too long.", __FUNCTION__, qPrintable(fam));
-        fam.truncate(LF_FACESIZE - 1);
-    }
-
-    if (fam.isEmpty())
-        fam = QStringLiteral("MS Sans Serif");
-
-    if (fam == QLatin1String("MS Sans Serif")
-        && (request.style == QFont::StyleItalic || (-lf.lfHeight > 18 && -lf.lfHeight != 24))) {
-        fam = QStringLiteral("Arial"); // MS Sans Serif has bearing problems in italic, and does not scale
-    }
-    if (fam == QLatin1String("Courier") && !(request.styleStrategy & QFont::PreferBitmap))
-        fam = QStringLiteral("Courier New");
-
-    memcpy(lf.lfFaceName, fam.utf16(), fam.size() * sizeof(wchar_t));
-
-    return lf;
-}
-
-QStringList QWindowsFontDatabase::extraTryFontsForFamily(const QString &family)
-{
-    QStringList result;
-    QFontDatabase db;
-    if (!db.writingSystems(family).contains(QFontDatabase::Symbol)) {
-        if (!tryFonts) {
-            LANGID lid = GetUserDefaultLangID();
-            switch (lid&0xff) {
-            case LANG_CHINESE: // Chinese
-                if ( lid == 0x0804 || lid == 0x1004) // China mainland and Singapore
-                    tryFonts = ch_CN_tryFonts;
-                else
-                    tryFonts = ch_TW_tryFonts; // Taiwan, Hong Kong and Macau
-                break;
-            case LANG_JAPANESE:
-                tryFonts = jp_tryFonts;
-                break;
-            case LANG_KOREAN:
-                tryFonts = kr_tryFonts;
-                break;
-            default:
-                tryFonts = other_tryFonts;
-                break;
-            }
-        }
-        QFontDatabase db;
-        const QStringList families = db.families();
-        const char **tf = tryFonts;
-        while (tf && *tf) {
-            // QTBUG-31689, family might be an English alias for a localized font name.
-            const QString family = QString::fromLatin1(*tf);
-            if (families.contains(family) || db.hasFamily(family))
-                result << family;
-            ++tf;
-        }
-    }
-    result.append(QStringLiteral("Segoe UI Emoji"));
-    result.append(QStringLiteral("Segoe UI Symbol"));
-    return result;
-}
-
-QString QWindowsFontDatabase::familyForStyleHint(QFont::StyleHint styleHint)
-{
-    switch (styleHint) {
-    case QFont::Times:
-        return QStringLiteral("Times New Roman");
-    case QFont::Courier:
-        return QStringLiteral("Courier New");
-    case QFont::Monospace:
-        return QStringLiteral("Courier New");
-    case QFont::Cursive:
-        return QStringLiteral("Comic Sans MS");
-    case QFont::Fantasy:
-        return QStringLiteral("Impact");
-    case QFont::Decorative:
-        return QStringLiteral("Old English");
-    case QFont::Helvetica:
-        return QStringLiteral("Arial");
-    case QFont::System:
-    default:
-        break;
-    }
-    return QStringLiteral("MS Shell Dlg 2");
-}
-
-QStringList QWindowsFontDatabase::fallbacksForFamily(const QString &family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script) const
-{
-    QStringList result;
-    result.append(QWindowsFontDatabase::familyForStyleHint(styleHint));
-    result.append(QWindowsFontDatabase::extraTryFontsForFamily(family));
-    result.append(QPlatformFontDatabase::fallbacksForFamily(family, style, styleHint, script));
-
-    qCDebug(lcQpaFonts) << __FUNCTION__ << family << style << styleHint
-        << script << result;
-    return result;
-}
-
-
-QFontEngine *QWindowsFontDatabase::createEngine(const QFontDef &request,
-                                                int dpi,
-                                                const QSharedPointer<QWindowsFontEngineData> &data)
-{
-    QFontEngine *fe = 0;
-
-    LOGFONT lf = fontDefToLOGFONT(request);
-    const bool preferClearTypeAA = lf.lfQuality == CLEARTYPE_QUALITY;
-
-    if (request.stretch != 100) {
-        HFONT hfont = CreateFontIndirect(&lf);
-        if (!hfont) {
-            qErrnoWarning("%s: CreateFontIndirect failed", __FUNCTION__);
-            hfont = QWindowsFontDatabase::systemFont();
-        }
-
-        HGDIOBJ oldObj = SelectObject(data->hdc, hfont);
-        TEXTMETRIC tm;
-        if (!GetTextMetrics(data->hdc, &tm))
-            qErrnoWarning("%s: GetTextMetrics failed", __FUNCTION__);
-        else
-            lf.lfWidth = tm.tmAveCharWidth * request.stretch / 100;
-        SelectObject(data->hdc, oldObj);
-
-        DeleteObject(hfont);
-    }
-
-#if !defined(QT_NO_DIRECTWRITE)
-    if (initDirectWrite(data.data())) {
-        const QString fam = QString::fromWCharArray(lf.lfFaceName);
-        const QString nameSubstitute = QWindowsFontEngineDirectWrite::fontNameSubstitute(fam);
-        if (nameSubstitute != fam) {
-            const int nameSubstituteLength = qMin(nameSubstitute.length(), LF_FACESIZE - 1);
-            memcpy(lf.lfFaceName, nameSubstitute.utf16(), nameSubstituteLength * sizeof(wchar_t));
-            lf.lfFaceName[nameSubstituteLength] = 0;
-        }
-
-        HFONT hfont = CreateFontIndirect(&lf);
-        if (!hfont) {
-            qErrnoWarning("%s: CreateFontIndirect failed", __FUNCTION__);
-        } else {
-            HGDIOBJ oldFont = SelectObject(data->hdc, hfont);
-
-            IDWriteFontFace *directWriteFontFace = NULL;
-            HRESULT hr = data->directWriteGdiInterop->CreateFontFaceFromHdc(data->hdc, &directWriteFontFace);
-            if (FAILED(hr)) {
-                const QString errorString = qt_error_string(int(hr));
-                qWarning().noquote().nospace() << "DirectWrite: CreateFontFaceFromHDC() failed ("
-                    << errorString << ") for " << request << ' ' << lf << " dpi=" << dpi;
-            } else {
-                bool isColorFont = false;
-#if defined(QT_USE_DIRECTWRITE2)
-                IDWriteFontFace2 *directWriteFontFace2 = Q_NULLPTR;
-                if (SUCCEEDED(directWriteFontFace->QueryInterface(__uuidof(IDWriteFontFace2),
-                                                                  reinterpret_cast<void **>(&directWriteFontFace2)))) {
-                    if (directWriteFontFace2->IsColorFont())
-                        isColorFont = directWriteFontFace2->GetPaletteEntryCount() > 0;
-                }
-#endif
-                const QFont::HintingPreference hintingPreference =
-                    static_cast<QFont::HintingPreference>(request.hintingPreference);
-                const bool useDw = useDirectWrite(hintingPreference, fam, isColorFont);
-                qCDebug(lcQpaFonts) << __FUNCTION__ << request.family << request.pointSize
-                    << "pt" << "hintingPreference=" << hintingPreference << "color=" << isColorFont
-                    << dpi << "dpi" << "useDirectWrite=" << useDw;
-                if (useDw) {
-                    QWindowsFontEngineDirectWrite *fedw = new QWindowsFontEngineDirectWrite(directWriteFontFace,
-                                                                                            request.pixelSize,
-                                                                                            data);
-
-                    wchar_t n[64];
-                    GetTextFace(data->hdc, 64, n);
-
-                    QFontDef fontDef = request;
-                    fontDef.family = QString::fromWCharArray(n);
-
-                    if (isColorFont)
-                        fedw->glyphFormat = QFontEngine::Format_ARGB;
-                    fedw->initFontInfo(fontDef, dpi);
-                    fe = fedw;
-                } else {
-                    directWriteFontFace->Release();
-                }
-            }
-
-            SelectObject(data->hdc, oldFont);
-            DeleteObject(hfont);
-        }
-    }
-#endif // QT_NO_DIRECTWRITE
-
-    if (!fe) {
-        QWindowsFontEngine *few = new QWindowsFontEngine(request.family, lf, data);
-        if (preferClearTypeAA)
-            few->glyphFormat = QFontEngine::Format_A32;
-        few->initFontInfo(request, dpi);
-        fe = few;
-    }
-
-    return fe;
-}
-
-static inline int verticalDPI()
-{
-    return GetDeviceCaps(QWindowsContext::instance()->displayContext(), LOGPIXELSY);
-}
-
-QFont QWindowsFontDatabase::systemDefaultFont()
-{
-    LOGFONT lf;
-    GetObject(QWindowsFontDatabase::systemFont(), sizeof(lf), &lf);
-    QFont systemFont =  QWindowsFontDatabase::LOGFONT_to_QFont(lf);
-    // "MS Shell Dlg 2" is the correct system font >= Win2k
-    if (systemFont.family() == QLatin1String("MS Shell Dlg"))
-        systemFont.setFamily(QStringLiteral("MS Shell Dlg 2"));
-    qCDebug(lcQpaFonts) << __FUNCTION__ << systemFont;
-    return systemFont;
-}
-
-QFont QWindowsFontDatabase::LOGFONT_to_QFont(const LOGFONT& logFont, int verticalDPI_In)
-{
-    if (verticalDPI_In <= 0)
-        verticalDPI_In = verticalDPI();
-    QFont qFont(QString::fromWCharArray(logFont.lfFaceName));
-    qFont.setItalic(logFont.lfItalic);
-    if (logFont.lfWeight != FW_DONTCARE)
-        qFont.setWeight(QPlatformFontDatabase::weightFromInteger(logFont.lfWeight));
-    const qreal logFontHeight = qAbs(logFont.lfHeight);
-    qFont.setPointSizeF(logFontHeight * 72.0 / qreal(verticalDPI_In));
-    qFont.setUnderline(logFont.lfUnderline);
-    qFont.setOverline(false);
-    qFont.setStrikeOut(logFont.lfStrikeOut);
-    return qFont;
-}
-
-QT_END_NAMESPACE