Long live Qt 4.5!

1 files changed, 1062 insertions, 0 deletions

diff --git a/src/gui/text/qfontdatabase_qws.cpp b/src/gui/text/qfontdatabase_qws.cpp
new file mode 100644
index 0000000000..eb8a0cf5c2
--- /dev/null
+++ b/src/gui/text/qfontdatabase_qws.cpp
@@ -0,0 +1,1062 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdir.h"
+#include "qscreen_qws.h" //so we can check for rotation
+#include "qwindowsystem_qws.h"
+#include "qlibraryinfo.h"
+#include "qabstractfileengine.h"
+#include <QtCore/qsettings.h>
+#if !defined(QT_NO_FREETYPE)
+#include "qfontengine_ft_p.h"
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_TRUETYPE_TABLES_H
+
+#endif
+#include "qfontengine_qpf_p.h"
+#include "private/qfactoryloader_p.h"
+#include "qabstractfontengine_qws.h"
+#include "qabstractfontengine_p.h"
+#include <qdatetime.h>
+
+// for mmap
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#ifdef QT_FONTS_ARE_RESOURCES
+#include <qresource.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+#ifndef QT_NO_LIBRARY
+Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
+    (QFontEngineFactoryInterface_iid, QLatin1String("/fontengines"), Qt::CaseInsensitive))
+#endif
+
+const quint8 DatabaseVersion = 4;
+
+void QFontDatabasePrivate::addFont(const QString &familyname, const char *foundryname, int weight, bool italic, int pixelSize,
+                                   const QByteArray &file, int fileIndex, bool antialiased,
+                                   const QList<QFontDatabase::WritingSystem> &writingSystems)
+{
+//    qDebug() << "Adding font" << familyname << weight << italic << pixelSize << file << fileIndex << antialiased;
+    QtFontStyle::Key styleKey;
+    styleKey.style = italic ? QFont::StyleItalic : QFont::StyleNormal;
+    styleKey.weight = weight;
+    styleKey.stretch = 100;
+    QtFontFamily *f = family(familyname, true);
+
+    if (writingSystems.isEmpty()) {
+        for (int ws = 1; ws < QFontDatabase::WritingSystemsCount; ++ws) {
+            f->writingSystems[ws] = QtFontFamily::Supported;
+        }
+        f->bogusWritingSystems = true;
+    } else {
+        for (int i = 0; i < writingSystems.count(); ++i) {
+            f->writingSystems[writingSystems.at(i)] = QtFontFamily::Supported;
+        }
+    }
+
+    QtFontFoundry *foundry = f->foundry(QString::fromLatin1(foundryname), true);
+    QtFontStyle *style = foundry->style(styleKey,  true);
+    style->smoothScalable = (pixelSize == 0);
+    style->antialiased = antialiased;
+    QtFontSize *size = style->pixelSize(pixelSize?pixelSize:SMOOTH_SCALABLE, true);
+    size->fileName = file;
+    size->fileIndex = fileIndex;
+
+    if (stream) {
+        *stream << familyname << foundry->name << weight << quint8(italic) << pixelSize
+                << file << fileIndex << quint8(antialiased);
+        *stream << quint8(writingSystems.count());
+        for (int i = 0; i < writingSystems.count(); ++i)
+            *stream << quint8(writingSystems.at(i));
+    }
+}
+
+#ifndef QT_NO_QWS_QPF2
+void QFontDatabasePrivate::addQPF2File(const QByteArray &file)
+{
+#ifndef QT_FONTS_ARE_RESOURCES
+    struct stat st;
+    if (stat(file.constData(), &st))
+        return;
+    int f = ::open(file, O_RDONLY);
+    if (f < 0)
+        return;
+    const uchar *data = (const uchar *)mmap(0, st.st_size, PROT_READ, MAP_SHARED, f, 0);
+    const int dataSize = st.st_size;
+#else
+    QResource res(QLatin1String(file.constData()));
+    const uchar *data = res.data();
+    const int dataSize = res.size();
+    //qDebug() << "addQPF2File" << file << data;
+#endif
+    if (data && data != (const uchar *)MAP_FAILED) {
+        if (QFontEngineQPF::verifyHeader(data, dataSize)) {
+            QString fontName = QFontEngineQPF::extractHeaderField(data, QFontEngineQPF::Tag_FontName).toString();
+            int pixelSize = QFontEngineQPF::extractHeaderField(data, QFontEngineQPF::Tag_PixelSize).toInt();
+            QVariant weight = QFontEngineQPF::extractHeaderField(data, QFontEngineQPF::Tag_Weight);
+            QVariant style = QFontEngineQPF::extractHeaderField(data, QFontEngineQPF::Tag_Style);
+            QByteArray writingSystemBits = QFontEngineQPF::extractHeaderField(data, QFontEngineQPF::Tag_WritingSystems).toByteArray();
+
+            if (!fontName.isEmpty() && pixelSize) {
+                int fontWeight = 50;
+                if (weight.type() == QVariant::Int || weight.type() == QVariant::UInt)
+                    fontWeight = weight.toInt();
+
+                bool italic = static_cast<QFont::Style>(style.toInt()) & QFont::StyleItalic;
+
+                QList<QFontDatabase::WritingSystem> writingSystems;
+                for (int i = 0; i < writingSystemBits.count(); ++i) {
+                    uchar currentByte = writingSystemBits.at(i);
+                    for (int j = 0; j < 8; ++j) {
+                        if (currentByte & 1)
+                            writingSystems << QFontDatabase::WritingSystem(i * 8 + j);
+                        currentByte >>= 1;
+                    }
+                }
+
+                addFont(fontName, /*foundry*/ "prerendered", fontWeight, italic,
+                        pixelSize, file, /*fileIndex*/ 0,
+                        /*antialiased*/ true, writingSystems);
+            }
+        } else {
+            qDebug() << "header verification of QPF2 font" << file << "failed. maybe it is corrupt?";
+        }
+#ifndef QT_FONTS_ARE_RESOURCES
+        munmap((void *)data, st.st_size);
+#endif
+    }
+#ifndef QT_FONTS_ARE_RESOURCES
+    ::close(f);
+#endif
+}
+#endif
+
+#ifndef QT_NO_FREETYPE
+QStringList QFontDatabasePrivate::addTTFile(const QByteArray &file, const QByteArray &fontData)
+{
+    QStringList families;
+    extern FT_Library qt_getFreetype();
+    FT_Library library = qt_getFreetype();
+
+    int index = 0;
+    int numFaces = 0;
+    do {
+        FT_Face face;
+        FT_Error error;
+        if (!fontData.isEmpty()) {
+            error = FT_New_Memory_Face(library, (const FT_Byte *)fontData.constData(), fontData.size(), index, &face);
+        } else {
+            error = FT_New_Face(library, file, index, &face);
+        }
+        if (error != FT_Err_Ok) {
+            qDebug() << "FT_New_Face failed with index" << index << ":" << hex << error;
+            break;
+        }
+        numFaces = face->num_faces;
+
+        int weight = QFont::Normal;
+        bool italic = face->style_flags & FT_STYLE_FLAG_ITALIC;
+
+        if (face->style_flags & FT_STYLE_FLAG_BOLD)
+            weight = QFont::Bold;
+
+        QList<QFontDatabase::WritingSystem> writingSystems;
+        // detect symbol fonts
+        for (int i = 0; i < face->num_charmaps; ++i) {
+            FT_CharMap cm = face->charmaps[i];
+            if (cm->encoding == ft_encoding_adobe_custom
+                    || cm->encoding == ft_encoding_symbol) {
+                writingSystems.append(QFontDatabase::Symbol);
+                break;
+            }
+        }
+        if (writingSystems.isEmpty()) {
+            TT_OS2 *os2 = (TT_OS2 *)FT_Get_Sfnt_Table(face, ft_sfnt_os2);
+            if (os2) {
+                quint32 unicodeRange[4] = {
+                    os2->ulUnicodeRange1, os2->ulUnicodeRange2, os2->ulUnicodeRange3, os2->ulUnicodeRange4
+                };
+                quint32 codePageRange[2] = {
+                    os2->ulCodePageRange1, os2->ulCodePageRange2
+                };
+
+                writingSystems = determineWritingSystemsFromTrueTypeBits(unicodeRange, codePageRange);
+                //for (int i = 0; i < writingSystems.count(); ++i)
+                //    qDebug() << QFontDatabase::writingSystemName(writingSystems.at(i));
+            }
+        }
+
+        QString family = QString::fromAscii(face->family_name);
+        families.append(family);
+        addFont(family, /*foundry*/ "", weight, italic,
+                /*pixelsize*/ 0, file, index, /*antialias*/ true, writingSystems);
+
+        FT_Done_Face(face);
+        ++index;
+    } while (index < numFaces);
+    return families;
+}
+#endif
+
+static void registerFont(QFontDatabasePrivate::ApplicationFont *fnt);
+
+extern QString qws_fontCacheDir();
+
+#ifndef QT_FONTS_ARE_RESOURCES
+bool QFontDatabasePrivate::loadFromCache(const QString &fontPath)
+{
+    const bool weAreTheServer = QWSServer::instance();
+
+    QString fontDirFile = fontPath + QLatin1String("/fontdir");
+
+    QFile binaryDb(qws_fontCacheDir() + QLatin1String("/fontdb"));
+
+    if (weAreTheServer) {
+        QDateTime dbTimeStamp = QFileInfo(binaryDb.fileName()).lastModified();
+
+        QDateTime fontPathTimeStamp = QFileInfo(fontPath).lastModified();
+        if (dbTimeStamp < fontPathTimeStamp)
+            return false; // let the caller create the cache
+
+        if (QFile::exists(fontDirFile)) {
+            QDateTime fontDirTimeStamp = QFileInfo(fontDirFile).lastModified();
+            if (dbTimeStamp < fontDirTimeStamp)
+                return false;
+        }
+    }
+
+    if (!binaryDb.open(QIODevice::ReadOnly)) {
+        if (weAreTheServer)
+            return false; // let the caller create the cache
+        qFatal("QFontDatabase::loadFromCache: Could not open font database cache!");
+    }
+
+    QDataStream stream(&binaryDb);
+    quint8 version = 0;
+    quint8 dataStreamVersion = 0;
+    stream >> version >> dataStreamVersion;
+    if (version != DatabaseVersion || dataStreamVersion != stream.version()) {
+        if (weAreTheServer)
+            return false; // let the caller create the cache
+        qFatal("QFontDatabase::loadFromCache: Wrong version of the font database cache detected. Found %d/%d expected %d/%d",
+               version, dataStreamVersion, DatabaseVersion, stream.version());
+    }
+
+    QString originalFontPath;
+    stream >> originalFontPath;
+    if (originalFontPath != fontPath) {
+        if (weAreTheServer)
+            return false; // let the caller create the cache
+        qFatal("QFontDatabase::loadFromCache: Font path doesn't match. Found %s in database, expected %s", qPrintable(originalFontPath), qPrintable(fontPath));
+    }
+
+    QString familyname;
+    stream >> familyname;
+    //qDebug() << "populating database from" << binaryDb.fileName();
+    while (!familyname.isEmpty() && !stream.atEnd()) {
+        QString foundryname;
+        int weight;
+        quint8 italic;
+        int pixelSize;
+        QByteArray file;
+        int fileIndex;
+        quint8 antialiased;
+        quint8 writingSystemCount;
+
+        QList<QFontDatabase::WritingSystem> writingSystems;
+
+        stream >> foundryname >> weight >> italic >> pixelSize
+               >> file >> fileIndex >> antialiased >> writingSystemCount;
+
+        for (quint8 i = 0; i < writingSystemCount; ++i) {
+            quint8 ws;
+            stream >> ws;
+            writingSystems.append(QFontDatabase::WritingSystem(ws));
+        }
+
+        addFont(familyname, foundryname.toLatin1().constData(), weight, italic, pixelSize, file, fileIndex, antialiased,
+                writingSystems);
+
+        stream >> familyname;
+    }
+
+    stream >> fallbackFamilies;
+    //qDebug() << "fallback families from cache:" << fallbackFamilies;
+    return true;
+}
+#endif // QT_FONTS_ARE_RESOURCES
+
+/*!
+    \internal
+*/
+
+static QString qwsFontPath()
+{
+    QString fontpath = QString::fromLocal8Bit(qgetenv("QT_QWS_FONTDIR"));
+    if (fontpath.isEmpty()) {
+#ifdef QT_FONTS_ARE_RESOURCES
+        fontpath = QLatin1String(":/qt/fonts");
+#else
+#ifndef QT_NO_SETTINGS
+        fontpath = QLibraryInfo::location(QLibraryInfo::LibrariesPath);
+        fontpath += QLatin1String("/fonts");
+#else
+        fontpath = QLatin1String("/lib/fonts");
+#endif
+#endif //QT_FONTS_ARE_RESOURCES
+    }
+
+    return fontpath;
+}
+
+#ifdef QFONTDATABASE_DEBUG
+class FriendlyResource : public QResource
+{
+public:
+    bool isDir () const { return QResource::isDir(); }
+    bool isFile () const { return QResource::isFile(); }
+    QStringList children () const { return QResource::children(); }
+};
+#endif
+/*!
+    \internal
+*/
+static void initializeDb()
+{
+    QFontDatabasePrivate *db = privateDb();
+    if (!db || db->count)
+        return;
+
+    QString fontpath = qwsFontPath();
+#ifndef QT_FONTS_ARE_RESOURCES
+    QString fontDirFile = fontpath + QLatin1String("/fontdir");
+
+    if(!QFile::exists(fontpath)) {
+        qFatal("QFontDatabase: Cannot find font directory %s - is Qt installed correctly?",
+               fontpath.toLocal8Bit().constData());
+    }
+
+    const bool loaded = db->loadFromCache(fontpath);
+
+    if (db->reregisterAppFonts) {
+        db->reregisterAppFonts = false;
+        for (int i = 0; i < db->applicationFonts.count(); ++i)
+            if (!db->applicationFonts.at(i).families.isEmpty()) {
+                registerFont(&db->applicationFonts[i]);
+            }
+    }
+
+    if (loaded)
+        return;
+
+    QString dbFileName = qws_fontCacheDir() + QLatin1String("/fontdb");
+
+    QFile binaryDb(dbFileName + QLatin1String(".tmp"));
+    binaryDb.open(QIODevice::WriteOnly | QIODevice::Truncate);
+    db->stream = new QDataStream(&binaryDb);
+    *db->stream << DatabaseVersion << quint8(db->stream->version()) << fontpath;
+//    qDebug() << "creating binary database at" << binaryDb.fileName();
+
+    // Load in font definition file
+    FILE* fontdef=fopen(fontDirFile.toLocal8Bit().constData(),"r");
+    if (fontdef) {
+        char buf[200]="";
+        char name[200]="";
+        char render[200]="";
+        char file[200]="";
+        char isitalic[10]="";
+        char flags[10]="";
+        do {
+            fgets(buf,200,fontdef);
+            if (buf[0] != '#') {
+                int weight=50;
+                int size=0;
+                sscanf(buf,"%s %s %s %s %d %d %s",name,file,render,isitalic,&weight,&size,flags);
+                QString filename;
+                if (file[0] != '/')
+                    filename.append(fontpath).append(QLatin1Char('/'));
+                filename += QLatin1String(file);
+                bool italic = isitalic[0] == 'y';
+                bool smooth = QByteArray(flags).contains('s');
+                if (file[0] && QFile::exists(filename))
+                    db->addFont(QString::fromUtf8(name), /*foundry*/"", weight, italic, size/10, QFile::encodeName(filename), /*fileIndex*/ 0, smooth);
+            }
+        } while (!feof(fontdef));
+        fclose(fontdef);
+    }
+
+
+    QDir dir(fontpath, QLatin1String("*.qpf"));
+    for (int i=0; i<int(dir.count()); i++) {
+        int u0 = dir[i].indexOf(QLatin1Char('_'));
+        int u1 = dir[i].indexOf(QLatin1Char('_'), u0+1);
+        int u2 = dir[i].indexOf(QLatin1Char('_'), u1+1);
+        int u3 = dir[i].indexOf(QLatin1Char('.'), u1+1);
+        if (u2 < 0) u2 = u3;
+
+        QString familyname = dir[i].left(u0);
+        int pixelSize = dir[i].mid(u0+1,u1-u0-1).toInt()/10;
+        bool italic = dir[i].mid(u2-1,1) == QLatin1String("i");
+        int weight = dir[i].mid(u1+1,u2-u1-1-(italic?1:0)).toInt();
+
+        db->addFont(familyname, /*foundry*/ "qt", weight, italic, pixelSize, QFile::encodeName(dir.absoluteFilePath(dir[i])),
+                    /*fileIndex*/ 0, /*antialiased*/ true);
+    }
+
+#ifndef QT_NO_FREETYPE
+    dir.setNameFilters(QStringList() << QLatin1String("*.ttf")
+                       << QLatin1String("*.ttc") << QLatin1String("*.pfa")
+                       << QLatin1String("*.pfb"));
+    dir.refresh();
+    for (int i = 0; i < int(dir.count()); ++i) {
+        const QByteArray file = QFile::encodeName(dir.absoluteFilePath(dir[i]));
+//        qDebug() << "looking at" << file;
+        db->addTTFile(file);
+    }
+#endif
+
+#ifndef QT_NO_QWS_QPF2
+    dir.setNameFilters(QStringList() << QLatin1String("*.qpf2"));
+    dir.refresh();
+    for (int i = 0; i < int(dir.count()); ++i) {
+        const QByteArray file = QFile::encodeName(dir.absoluteFilePath(dir[i]));
+//        qDebug() << "looking at" << file;
+        db->addQPF2File(file);
+    }
+#endif
+
+#else //QT_FONTS_ARE_RESOURCES
+#ifdef QFONTDATABASE_DEBUG
+    {
+        QResource fontdir(fontpath);
+        FriendlyResource *fr = static_cast<FriendlyResource*>(&fontdir);
+        qDebug() << "fontdir" << fr->isValid() << fr->isDir() << fr->children();
+
+    }
+#endif
+    QDir dir(fontpath, QLatin1String("*.qpf2"));
+    for (int i = 0; i < int(dir.count()); ++i) {
+        const QByteArray file = QFile::encodeName(dir.absoluteFilePath(dir[i]));
+        //qDebug() << "looking at" << file;
+        db->addQPF2File(file);
+    }
+#endif //QT_FONTS_ARE_RESOURCES
+
+
+#ifdef QFONTDATABASE_DEBUG
+    // print the database
+    for (int f = 0; f < db->count; f++) {
+        QtFontFamily *family = db->families[f];
+        FD_DEBUG("'%s' %s", qPrintable(family->name), (family->fixedPitch ? "fixed" : ""));
+#if 0
+        for (int i = 0; i < QFont::LastPrivateScript; ++i) {
+            FD_DEBUG("\t%s: %s", qPrintable(QFontDatabase::scriptName((QFont::Script) i)),
+                     ((family->scripts[i] & QtFontFamily::Supported) ? "Supported" :
+                      (family->scripts[i] & QtFontFamily::UnSupported) == QtFontFamily::UnSupported ?
+                      "UnSupported" : "Unknown"));
+        }
+#endif
+
+        for (int fd = 0; fd < family->count; fd++) {
+            QtFontFoundry *foundry = family->foundries[fd];
+            FD_DEBUG("\t\t'%s'", qPrintable(foundry->name));
+            for (int s = 0; s < foundry->count; s++) {
+                QtFontStyle *style = foundry->styles[s];
+                FD_DEBUG("\t\t\tstyle: style=%d weight=%d\n"
+                         "\t\t\tstretch=%d",
+                         style->key.style, style->key.weight,
+                         style->key.stretch);
+                if (style->smoothScalable)
+                    FD_DEBUG("\t\t\t\tsmooth scalable");
+                else if (style->bitmapScalable)
+                    FD_DEBUG("\t\t\t\tbitmap scalable");
+                if (style->pixelSizes) {
+                    FD_DEBUG("\t\t\t\t%d pixel sizes",  style->count);
+                    for (int z = 0; z < style->count; ++z) {
+                        QtFontSize *size = style->pixelSizes + z;
+                        FD_DEBUG("\t\t\t\t  size %5d",
+                                  size->pixelSize);
+                    }
+                }
+            }
+        }
+    }
+#endif // QFONTDATABASE_DEBUG
+
+#ifndef QT_NO_LIBRARY
+    QStringList pluginFoundries = loader()->keys();
+//    qDebug() << "plugin foundries:" << pluginFoundries;
+    for (int i = 0; i < pluginFoundries.count(); ++i) {
+        const QString foundry(pluginFoundries.at(i));
+
+        QFontEngineFactoryInterface *factory = qobject_cast<QFontEngineFactoryInterface *>(loader()->instance(foundry));
+        if (!factory) {
+            qDebug() << "Could not load plugin for foundry" << foundry;
+            continue;
+        }
+
+        QList<QFontEngineInfo> fonts = factory->availableFontEngines();
+        for (int i = 0; i < fonts.count(); ++i) {
+            QFontEngineInfo info = fonts.at(i);
+
+            int weight = info.weight();
+            if (weight <= 0)
+                weight = QFont::Normal;
+
+            db->addFont(info.family(), foundry.toLatin1().constData(),
+                        weight, info.style() != QFont::StyleNormal,
+                        qRound(info.pixelSize()), /*file*/QByteArray(),
+                        /*fileIndex*/0, /*antiAliased*/true,
+                        info.writingSystems());
+        }
+    }
+#endif
+
+#ifndef QT_FONTS_ARE_RESOURCES
+    // the empty string/familyname signifies the end of the font list.
+    *db->stream << QString();
+#endif
+    {
+        bool coveredWritingSystems[QFontDatabase::WritingSystemsCount] = { 0 };
+
+        db->fallbackFamilies.clear();
+
+        for (int i = 0; i < db->count; ++i) {
+            QtFontFamily *family = db->families[i];
+            bool add = false;
+            if (family->count == 0)
+                continue;
+            if (family->bogusWritingSystems)
+                continue;
+            for (int ws = 1; ws < QFontDatabase::WritingSystemsCount; ++ws) {
+                if (coveredWritingSystems[ws])
+                    continue;
+                if (family->writingSystems[ws] & QtFontFamily::Supported) {
+                    coveredWritingSystems[ws] = true;
+                    add = true;
+                }
+            }
+            if (add)
+                db->fallbackFamilies << family->name;
+        }
+        //qDebug() << "fallbacks on the server:" << db->fallbackFamilies;
+#ifndef QT_FONTS_ARE_RESOURCES
+        *db->stream << db->fallbackFamilies;
+#endif
+    }
+#ifndef QT_FONTS_ARE_RESOURCES
+    delete db->stream;
+    db->stream = 0;
+    QFile::remove(dbFileName);
+    binaryDb.rename(dbFileName);
+#endif
+}
+
+// called from qwindowsystem_qws.cpp
+void qt_qws_init_fontdb()
+{
+    initializeDb();
+}
+
+#ifndef QT_NO_SETTINGS
+// called from qapplication_qws.cpp
+void qt_applyFontDatabaseSettings(const QSettings &settings)
+{
+    initializeDb();
+    QFontDatabasePrivate *db = privateDb();
+    for (int i = 0; i < db->count; ++i) {
+        QtFontFamily *family = db->families[i];
+        if (settings.contains(family->name))
+            family->fallbackFamilies = settings.value(family->name).toStringList();
+    }
+
+    if (settings.contains(QLatin1String("Global Fallbacks")))
+        db->fallbackFamilies = settings.value(QLatin1String("Global Fallbacks")).toStringList();
+}
+#endif // QT_NO_SETTINGS
+
+static inline void load(const QString & = QString(), int = -1)
+{
+    initializeDb();
+}
+
+#ifndef QT_NO_FREETYPE
+
+#if (FREETYPE_MAJOR*10000+FREETYPE_MINOR*100+FREETYPE_PATCH) >= 20105
+#define X_SIZE(face,i) ((face)->available_sizes[i].x_ppem)
+#define Y_SIZE(face,i) ((face)->available_sizes[i].y_ppem)
+#else
+#define X_SIZE(face,i) ((face)->available_sizes[i].width << 6)
+#define Y_SIZE(face,i) ((face)->available_sizes[i].height << 6)
+#endif
+
+#endif // QT_NO_FREETYPE
+
+static
+QFontEngine *loadSingleEngine(int script, const QFontPrivate *fp,
+                              const QFontDef &request,
+                              QtFontFamily *family, QtFontFoundry *foundry,
+                              QtFontStyle *style, QtFontSize *size)
+{
+    Q_UNUSED(script);
+    Q_UNUSED(fp);
+#ifdef QT_NO_FREETYPE
+    Q_UNUSED(foundry);
+#endif
+#ifdef QT_NO_QWS_QPF
+    Q_UNUSED(family);
+#endif
+    Q_ASSERT(size);
+
+    int pixelSize = size->pixelSize;
+    if (!pixelSize || (style->smoothScalable && pixelSize == SMOOTH_SCALABLE))
+        pixelSize = request.pixelSize;
+
+#ifndef QT_NO_QWS_QPF2
+    if (foundry->name == QLatin1String("prerendered")) {
+#ifdef QT_FONTS_ARE_RESOURCES
+        QResource res(QLatin1String(size->fileName.constData()));
+        if (res.isValid()) {
+            QFontEngineQPF *fe = new QFontEngineQPF(request, res.data(), res.size());
+            if (fe->isValid())
+                return fe;
+            qDebug() << "fontengine is not valid! " << size->fileName;
+            delete fe;
+        } else {
+            qDebug() << "Resource not valid" << size->fileName;
+        }
+#else
+        int f = ::open(size->fileName, O_RDONLY);
+        if (f >= 0) {
+            QFontEngineQPF *fe = new QFontEngineQPF(request, f);
+            if (fe->isValid())
+                return fe;
+            qDebug() << "fontengine is not valid!";
+            delete fe; // will close f
+        }
+#endif
+    } else
+#endif
+    if ( foundry->name != QLatin1String("qt") ) { ///#### is this the best way????
+        QString file = QFile::decodeName(size->fileName);
+
+        QFontDef def = request;
+        def.pixelSize = pixelSize;
+
+        static bool dontShareFonts = !qgetenv("QWS_NO_SHARE_FONTS").isEmpty();
+        bool shareFonts = !dontShareFonts;
+
+        QFontEngine *engine = 0;
+
+#ifndef QT_NO_LIBRARY
+        QFontEngineFactoryInterface *factory = qobject_cast<QFontEngineFactoryInterface *>(loader()->instance(foundry->name));
+            if (factory) {
+                QFontEngineInfo info;
+                info.setFamily(request.family);
+                info.setPixelSize(request.pixelSize);
+                info.setStyle(QFont::Style(request.style));
+                info.setWeight(request.weight);
+                // #### antialiased
+
+                QAbstractFontEngine *customEngine = factory->create(info);
+                if (customEngine) {
+                    engine = new QProxyFontEngine(customEngine, def);
+
+                    if (shareFonts) {
+                        QVariant hint = customEngine->fontProperty(QAbstractFontEngine::CacheGlyphsHint);
+                        if (hint.isValid())
+                            shareFonts = hint.toBool();
+                        else
+                            shareFonts = (pixelSize < 64);
+                    }
+                }
+        }
+#endif // QT_NO_LIBRARY
+            if (!engine && !file.isEmpty() && QFile::exists(file) || privateDb()->isApplicationFont(file)) {
+            QFontEngine::FaceId faceId;
+            faceId.filename = file.toLocal8Bit();
+            faceId.index = size->fileIndex;
+
+#ifndef QT_NO_FREETYPE
+
+            QFontEngineFT *fte = new QFontEngineFT(def);
+            if (fte->init(faceId, style->antialiased,
+                          style->antialiased ? QFontEngineFT::Format_A8 : QFontEngineFT::Format_Mono)) {
+#ifdef QT_NO_QWS_QPF2
+                return fte;
+#else
+                engine = fte;
+                // try to distinguish between bdf and ttf fonts we can pre-render
+                // and don't try to share outline fonts
+                shareFonts = shareFonts
+                             && !fte->defaultGlyphs()->outline_drawing
+                             && !fte->getSfntTable(MAKE_TAG('h', 'e', 'a', 'd')).isEmpty();
+#endif
+            } else {
+                delete fte;
+            }
+#endif // QT_NO_FREETYPE
+        }
+        if (engine) {
+#if !defined(QT_NO_QWS_QPF2) && !defined(QT_FONTS_ARE_RESOURCES)
+            if (shareFonts) {
+                QFontEngineQPF *fe = new QFontEngineQPF(def, -1, engine);
+                engine = 0;
+                if (fe->isValid())
+                    return fe;
+                qWarning("Initializing QFontEngineQPF failed for %s", qPrintable(file));
+                engine = fe->takeRenderingEngine();
+                delete fe;
+            }
+#endif
+            return engine;
+        }
+    } else
+    {
+#ifndef QT_NO_QWS_QPF
+        QString fn = qwsFontPath();
+        fn += QLatin1Char('/');
+        fn += family->name.toLower()
+              + QLatin1String("_") + QString::number(pixelSize*10)
+              + QLatin1String("_") + QString::number(style->key.weight)
+              + (style->key.style == QFont::StyleItalic ?
+                 QLatin1String("i.qpf") : QLatin1String(".qpf"));
+        //###rotation ###
+
+        QFontEngine *fe = new QFontEngineQPF1(request, fn);
+        return fe;
+#endif // QT_NO_QWS_QPF
+    }
+    return new QFontEngineBox(pixelSize);
+}
+
+static
+QFontEngine *loadEngine(int script, const QFontPrivate *fp,
+                        const QFontDef &request,
+                        QtFontFamily *family, QtFontFoundry *foundry,
+                        QtFontStyle *style, QtFontSize *size)
+{
+    QFontEngine *fe = loadSingleEngine(script, fp, request, family, foundry,
+                                       style, size);
+    if (fe
+        && script == QUnicodeTables::Common
+        && !(request.styleStrategy & QFont::NoFontMerging) && !fe->symbol) {
+
+        QStringList fallbacks = privateDb()->fallbackFamilies;
+
+        if (family && !family->fallbackFamilies.isEmpty())
+            fallbacks = family->fallbackFamilies;
+
+        fe = new QFontEngineMultiQWS(fe, script, fallbacks);
+    }
+    return fe;
+}
+
+static void registerFont(QFontDatabasePrivate::ApplicationFont *fnt)
+{
+    QFontDatabasePrivate *db = privateDb();
+#ifdef QT_NO_FREETYPE
+    Q_UNUSED(fnt);
+#else
+    fnt->families = db->addTTFile(QFile::encodeName(fnt->fileName), fnt->data);
+    db->fallbackFamilies += fnt->families;
+#endif
+    db->reregisterAppFonts = true;
+}
+
+bool QFontDatabase::removeApplicationFont(int handle)
+{
+    QMutexLocker locker(fontDatabaseMutex());
+
+    QFontDatabasePrivate *db = privateDb();
+    if (handle < 0 || handle >= db->applicationFonts.count())
+        return false;
+
+    db->applicationFonts[handle] = QFontDatabasePrivate::ApplicationFont();
+
+    db->reregisterAppFonts = true;
+    db->invalidate();
+    return true;
+}
+
+bool QFontDatabase::removeAllApplicationFonts()
+{
+    QMutexLocker locker(fontDatabaseMutex());
+
+    QFontDatabasePrivate *db = privateDb();
+    if (db->applicationFonts.isEmpty())
+        return false;
+
+    db->applicationFonts.clear();
+    db->invalidate();
+    return true;
+}
+
+bool QFontDatabase::supportsThreadedFontRendering()
+{
+    return true;
+}
+
+/*!
+    \internal
+*/
+QFontEngine *
+QFontDatabase::findFont(int script, const QFontPrivate *fp,
+                        const QFontDef &request)
+{
+    QMutexLocker locker(fontDatabaseMutex());
+
+    const int force_encoding_id = -1;
+
+    if (!privateDb()->count)
+        initializeDb();
+
+    QFontEngine *fe = 0;
+    if (fp) {
+        if (fp->rawMode) {
+            fe = loadEngine(script, fp, request, 0, 0, 0, 0
+                );
+
+            // if we fail to load the rawmode font, use a 12pixel box engine instead
+            if (! fe) fe = new QFontEngineBox(12);
+            return fe;
+        }
+
+        QFontCache::Key key(request, script);
+        fe = QFontCache::instance()->findEngine(key);
+        if (fe)
+            return fe;
+    }
+
+    QString family_name, foundry_name;
+    QtFontStyle::Key styleKey;
+    styleKey.style = request.style;
+    styleKey.weight = request.weight;
+    styleKey.stretch = request.stretch;
+    char pitch = request.ignorePitch ? '*' : request.fixedPitch ? 'm' : 'p';
+
+    parseFontName(request.family, foundry_name, family_name);
+
+    FM_DEBUG("QFontDatabase::findFont\n"
+             "  request:\n"
+             "    family: %s [%s], script: %d\n"
+             "    weight: %d, style: %d\n"
+             "    stretch: %d\n"
+             "    pixelSize: %d\n"
+             "    pitch: %c",
+             family_name.isEmpty() ? "-- first in script --" : family_name.toLatin1().constData(),
+             foundry_name.isEmpty() ? "-- any --" : foundry_name.toLatin1().constData(),
+             script, request.weight, request.style, request.stretch, request.pixelSize, pitch);
+
+    if (qt_enable_test_font && request.family == QLatin1String("__Qt__Box__Engine__")) {
+        fe = new QTestFontEngine(request.pixelSize);
+        fe->fontDef = request;
+    }
+
+    if (!fe)
+    {
+        QtFontDesc desc;
+        match(script, request, family_name, foundry_name, force_encoding_id, &desc);
+
+        if (desc.family != 0 && desc.foundry != 0 && desc.style != 0
+            ) {
+            FM_DEBUG("  BEST:\n"
+                     "    family: %s [%s]\n"
+                     "    weight: %d, style: %d\n"
+                     "    stretch: %d\n"
+                     "    pixelSize: %d\n"
+                     "    pitch: %c\n"
+                     "    encoding: %d\n",
+                     desc.family->name.toLatin1().constData(),
+                     desc.foundry->name.isEmpty() ? "-- none --" : desc.foundry->name.toLatin1().constData(),
+                     desc.style->key.weight, desc.style->key.style,
+                     desc.style->key.stretch, desc.size ? desc.size->pixelSize : 0xffff,
+                     'p', 0
+                );
+
+            fe = loadEngine(script, fp, request, desc.family, desc.foundry, desc.style, desc.size
+                );
+        } else {
+            FM_DEBUG("  NO MATCH FOUND\n");
+        }
+        if (fe)
+            initFontDef(desc, request, &fe->fontDef);
+    }
+
+    if (fe) {
+        if (fp) {
+            QFontDef def = request;
+            if (def.family.isEmpty()) {
+                def.family = fp->request.family;
+                def.family = def.family.left(def.family.indexOf(QLatin1Char(',')));
+            }
+            QFontCache::Key key(def, script);
+            QFontCache::instance()->insertEngine(key, fe);
+        }
+
+#ifndef QT_NO_FREETYPE
+        if (scriptRequiresOpenType(script) && fe->type() == QFontEngine::Freetype) {
+            HB_Face hbFace = static_cast<QFontEngineFT *>(fe)->harfbuzzFace();
+            if (!hbFace || !hbFace->supported_scripts[script]) {
+                FM_DEBUG("  OpenType support missing for script\n");
+                delete fe;
+                fe = 0;
+            }
+        }
+#endif
+    }
+
+    if (!fe) {
+        if (!request.family.isEmpty())
+            return 0;
+
+        FM_DEBUG("returning box engine");
+
+        fe = new QFontEngineBox(request.pixelSize);
+
+        if (fp) {
+            QFontCache::Key key(request, script);
+            QFontCache::instance()->insertEngine(key, fe);
+        }
+    }
+
+    if (fp && fp->dpi > 0) {
+        fe->fontDef.pointSize = qreal(double((fe->fontDef.pixelSize * 72) / fp->dpi));
+    } else {
+        fe->fontDef.pointSize = request.pointSize;
+    }
+
+    return fe;
+}
+
+void QFontDatabase::load(const QFontPrivate *d, int script)
+{
+    QFontDef req = d->request;
+
+    if (req.pixelSize == -1)
+        req.pixelSize = qRound(req.pointSize*d->dpi/72);
+    if (req.pointSize < 0)
+        req.pointSize = req.pixelSize*72.0/d->dpi;
+
+    if (!d->engineData) {
+        QFontCache::Key key(req, script);
+
+        // look for the requested font in the engine data cache
+        d->engineData = QFontCache::instance()->findEngineData(key);
+
+        if (!d->engineData) {
+            // create a new one
+            d->engineData = new QFontEngineData;
+            QFontCache::instance()->insertEngineData(key, d->engineData);
+        } else {
+            d->engineData->ref.ref();
+        }
+    }
+
+    // the cached engineData could have already loaded the engine we want
+    if (d->engineData->engines[script]) return;
+
+    // load the font
+    QFontEngine *engine = 0;
+    //    double scale = 1.0; // ### TODO: fix the scale calculations
+
+    // list of families to try
+    QStringList family_list;
+
+    if (!req.family.isEmpty()) {
+        family_list = req.family.split(QLatin1Char(','));
+
+        // append the substitute list for each family in family_list
+        QStringList subs_list;
+        QStringList::ConstIterator it = family_list.constBegin(), end = family_list.constEnd();
+        for (; it != end; ++it)
+            subs_list += QFont::substitutes(*it);
+        family_list += subs_list;
+
+        // append the default fallback font for the specified script
+        // family_list << ... ; ###########
+
+        // add the default family
+        QString defaultFamily = QApplication::font().family();
+        if (! family_list.contains(defaultFamily))
+            family_list << defaultFamily;
+
+        // add QFont::defaultFamily() to the list, for compatibility with
+        // previous versions
+        family_list << QApplication::font().defaultFamily();
+    }
+
+    // null family means find the first font matching the specified script
+    family_list << QString();
+
+    QStringList::ConstIterator it = family_list.constBegin(), end = family_list.constEnd();
+    for (; ! engine && it != end; ++it) {
+        req.family = *it;
+
+        engine = QFontDatabase::findFont(script, d, req);
+        if (engine) {
+            if (engine->type() != QFontEngine::Box)
+                break;
+
+            if (! req.family.isEmpty())
+                engine = 0;
+
+            continue;
+        }
+    }
+
+    engine->ref.ref();
+    d->engineData->engines[script] = engine;
+}
+
+
+QT_END_NAMESPACE