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Diffstat (limited to 'src/gui/text/qfontdatabase_s60.cpp')
| -rw-r--r-- | src/gui/text/qfontdatabase_s60.cpp | 423 |
1 files changed, 423 insertions, 0 deletions
diff --git a/src/gui/text/qfontdatabase_s60.cpp b/src/gui/text/qfontdatabase_s60.cpp new file mode 100644 index 0000000000..39fc5e13a4 --- /dev/null +++ b/src/gui/text/qfontdatabase_s60.cpp @@ -0,0 +1,423 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui 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 http://www.qtsoftware.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <private/qapplication_p.h> +#include "qdir.h" +#include "qfont_p.h" +#include "qfontengine_s60_p.h" +#include "qabstractfileengine.h" +#include "qdesktopservices.h" +#include "qt_s60_p.h" +#include "qendian.h" +#include <private/qwindowsurface_s60_p.h> +#include <private/qcore_symbian_p.h> +#if defined(QT_NO_FREETYPE) +#include <OPENFONT.H> +#endif + +QT_BEGIN_NAMESPACE + +QFileInfoList alternativeFilePaths(const QString &path, const QStringList &nameFilters, + QDir::Filters filters = QDir::NoFilter, QDir::SortFlags sort = QDir::NoSort, + bool uniqueFileNames = true) +{ + QFileInfoList result; + + // Prepare a 'soft to hard' drive list: W:, X: ... A:, Z: + QStringList driveStrings; + foreach (const QFileInfo &drive, QDir::drives()) + driveStrings.append(drive.absolutePath()); + driveStrings.sort(); + const QString zDriveString("Z:/"); + driveStrings.removeAll(zDriveString); + driveStrings.prepend(zDriveString); + + QStringList uniqueFileNameList; + for (int i = driveStrings.count() - 1; i >= 0; --i) { + const QDir dirOnDrive(driveStrings.at(i) + path); + const QFileInfoList entriesOnDrive = dirOnDrive.entryInfoList(nameFilters, filters, sort); + if (uniqueFileNames) { + foreach(const QFileInfo &entry, entriesOnDrive) { + if (!uniqueFileNameList.contains(entry.fileName())) { + uniqueFileNameList.append(entry.fileName()); + result.append(entry); + } + } + } else { + result.append(entriesOnDrive); + } + } + return result; +} + +#if defined(QT_NO_FREETYPE) +class QFontDatabaseS60StoreImplementation : public QFontDatabaseS60Store +{ +public: + QFontDatabaseS60StoreImplementation(); + ~QFontDatabaseS60StoreImplementation(); + + const QFontEngineS60Extensions *extension(const QString &typeface) const; + +private: + RHeap* m_heap; + CFontStore *m_store; + COpenFontRasterizer *m_rasterizer; + mutable QHash<QString, const QFontEngineS60Extensions *> m_extensions; +}; + +QFontDatabaseS60StoreImplementation::QFontDatabaseS60StoreImplementation() +{ + m_heap = User::ChunkHeap(NULL, 0x1000, 0x100000); + QT_TRAP_THROWING( + m_store = CFontStore::NewL(m_heap); + m_rasterizer = COpenFontRasterizer::NewL(TUid::Uid(0x101F7F5E)); + CleanupStack::PushL(m_rasterizer); + m_store->InstallRasterizerL(m_rasterizer); + CleanupStack::Pop(m_rasterizer);); + + QStringList filters; + filters.append(QString::fromLatin1("*.ttf")); + filters.append(QString::fromLatin1("*.ccc")); + const QFileInfoList fontFiles = alternativeFilePaths(QString::fromLatin1("resource\\Fonts"), filters); + foreach (const QFileInfo &fontFileInfo, fontFiles) { + const QString fontFile = QDir::toNativeSeparators(fontFileInfo.absoluteFilePath()); + TPtrC fontFilePtr(qt_QString2TPtrC(fontFile)); + QT_TRAP_THROWING(m_store->AddFileL(fontFilePtr)); + } +} +QFontDatabaseS60StoreImplementation::~QFontDatabaseS60StoreImplementation() +{ + qDeleteAll(m_extensions); + // TODO m_store cleanup removed because it was crashing + m_heap->Close(); +} + +const QFontEngineS60Extensions *QFontDatabaseS60StoreImplementation::extension(const QString &typeface) const +{ + if (!m_extensions.contains(typeface)) { + CFont* font = NULL; + TFontSpec spec(qt_QString2TPtrC(typeface), 1); + spec.iHeight = 1; + const TInt err = m_store->GetNearestFontToDesignHeightInPixels(font, spec); + Q_ASSERT(err == KErrNone && font); + CBitmapFont *bitmapFont = static_cast<CBitmapFont*>(font); + m_extensions.insert(typeface, new QFontEngineS60Extensions(bitmapFont->OpenFont())); + } + return m_extensions.value(typeface); +} +#else +class QFontEngineFTS60 : public QFontEngineFT +{ +public: + QFontEngineFTS60(const QFontDef &fd); +}; + +QFontEngineFTS60::QFontEngineFTS60(const QFontDef &fd) + : QFontEngineFT(fd) +{ + default_hint_style = HintFull; +} +#endif // defined(QT_NO_FREETYPE) + +/* + QFontEngineS60::pixelsToPoints, QFontEngineS60::pointsToPixels, QFontEngineMultiS60::QFontEngineMultiS60 + and QFontEngineMultiS60::QFontEngineMultiS60 should be in qfontengine_s60.cpp. But since also the + Freetype based font rendering need them, they are here. +*/ +qreal QFontEngineS60::pixelsToPoints(qreal pixels, Qt::Orientation orientation) +{ + return (orientation == Qt::Horizontal? + S60->screenDevice()->HorizontalPixelsToTwips(pixels) + :S60->screenDevice()->VerticalPixelsToTwips(pixels)) / KTwipsPerPoint; +} + +qreal QFontEngineS60::pointsToPixels(qreal points, Qt::Orientation orientation) +{ + const int twips = points * KTwipsPerPoint; + return orientation == Qt::Horizontal? + S60->screenDevice()->HorizontalTwipsToPixels(twips) + :S60->screenDevice()->VerticalTwipsToPixels(twips); +} + +QFontEngineMultiS60::QFontEngineMultiS60(QFontEngine *first, int script, const QStringList &fallbackFamilies) + : QFontEngineMulti(fallbackFamilies.size() + 1) + , m_script(script) + , m_fallbackFamilies(fallbackFamilies) +{ + engines[0] = first; + first->ref.ref(); + fontDef = engines[0]->fontDef; +} + +void QFontEngineMultiS60::loadEngine(int at) +{ + Q_ASSERT(at < engines.size()); + Q_ASSERT(engines.at(at) == 0); + + QFontDef request = fontDef; + request.styleStrategy |= QFont::NoFontMerging; + request.family = m_fallbackFamilies.at(at-1); + engines[at] = QFontDatabase::findFont(m_script, + /*fontprivate*/0, + request); + Q_ASSERT(engines[at]); +} + +static void initializeDb() +{ + QFontDatabasePrivate *db = privateDb(); + if(!db || db->count) + return; + +#if defined(QT_NO_FREETYPE) + if (!db->s60Store) + db->s60Store = new QFontDatabaseS60StoreImplementation; + + QS60WindowSurface::unlockBitmapHeap(); + const int numTypeFaces = QS60Data::screenDevice()->NumTypefaces(); + const QFontDatabaseS60StoreImplementation *store = dynamic_cast<const QFontDatabaseS60StoreImplementation*>(db->s60Store); + Q_ASSERT(store); + for (int i = 0; i < numTypeFaces; i++) { + TTypefaceSupport typefaceSupport; + QS60Data::screenDevice()->TypefaceSupport(typefaceSupport, i); + CFont *font; // We have to get a font instance in order to know all the details + TFontSpec fontSpec(typefaceSupport.iTypeface.iName, 11); + qt_throwIfError(QS60Data::screenDevice()->GetNearestFontInPixels(font, fontSpec)); + if (font->TypeUid() == KCFbsFontUid) { + TOpenFontFaceAttrib faceAttrib; + const CFbsFont *cfbsFont = dynamic_cast<const CFbsFont *>(font); + Q_ASSERT(cfbsFont); + cfbsFont->GetFaceAttrib(faceAttrib); + + QtFontStyle::Key styleKey; + styleKey.style = faceAttrib.IsItalic()?QFont::StyleItalic:QFont::StyleNormal; + styleKey.weight = faceAttrib.IsBold()?QFont::Bold:QFont::Normal; + + QString familyName((const QChar *)typefaceSupport.iTypeface.iName.Ptr(), typefaceSupport.iTypeface.iName.Length()); + QtFontFamily *family = db->family(familyName, true); + family->fixedPitch = faceAttrib.IsMonoWidth(); + QtFontFoundry *foundry = family->foundry(QString(), true); + QtFontStyle *style = foundry->style(styleKey, true); + style->smoothScalable = typefaceSupport.iIsScalable; + style->pixelSize(0, true); + + const QFontEngineS60Extensions *extension = store->extension(familyName); + const QByteArray os2Table = extension->getSfntTable(MAKE_TAG('O', 'S', '/', '2')); + const unsigned char* data = reinterpret_cast<const unsigned char*>(os2Table.constData()); + const unsigned char* ulUnicodeRange = data + 42; + quint32 unicodeRange[4] = { + qFromBigEndian<quint32>(ulUnicodeRange), + qFromBigEndian<quint32>(ulUnicodeRange + 4), + qFromBigEndian<quint32>(ulUnicodeRange + 8), + qFromBigEndian<quint32>(ulUnicodeRange + 12) + }; + const unsigned char* ulCodePageRange = data + 78; + quint32 codePageRange[2] = { + qFromBigEndian<quint32>(ulCodePageRange), + qFromBigEndian<quint32>(ulCodePageRange + 4) + }; + const QList<QFontDatabase::WritingSystem> writingSystems = + determineWritingSystemsFromTrueTypeBits(unicodeRange, codePageRange); + foreach (const QFontDatabase::WritingSystem system, writingSystems) + family->writingSystems[system] = QtFontFamily::Supported; + } + QS60Data::screenDevice()->ReleaseFont(font); + } + QS60WindowSurface::lockBitmapHeap(); +#else // defined(QT_NO_FREETYPE) + QDir dir(QDesktopServices::storageLocation(QDesktopServices::FontsLocation)); + dir.setNameFilters(QStringList() << QLatin1String("*.ttf") + << QLatin1String("*.ttc") << QLatin1String("*.pfa") + << QLatin1String("*.pfb")); + for (int i = 0; i < int(dir.count()); ++i) { + const QByteArray file = QFile::encodeName(dir.absoluteFilePath(dir[i])); + db->addTTFile(file); + } +#endif // defined(QT_NO_FREETYPE) +} + +static inline void load(const QString &family = QString(), int script = -1) +{ + Q_UNUSED(family) + Q_UNUSED(script) + initializeDb(); +} + +static void registerFont(QFontDatabasePrivate::ApplicationFont *fnt) +{ + Q_UNUSED(fnt); +} + +bool QFontDatabase::removeApplicationFont(int handle) +{ + Q_UNUSED(handle); + return false; +} + +bool QFontDatabase::supportsThreadedFontRendering() +{ + return false; +} + +static +QFontDef cleanedFontDef(const QFontDef &req) +{ + QFontDef result = req; + if (result.pixelSize <= 0) { + result.pixelSize = QFontEngineS60::pointsToPixels(qMax(qreal(1.0), result.pointSize)); + result.pointSize = 0; + } + return result; +} + +QFontEngine *QFontDatabase::findFont(int script, const QFontPrivate *, const QFontDef &req) +{ + const QFontCache::Key key(cleanedFontDef(req), script); + + if (!privateDb()->count) + initializeDb(); + + QFontEngine *fe = QFontCache::instance()->findEngine(key); + if (!fe) { + // Making sure that fe->fontDef.family will be an existing font. + initializeDb(); + QFontDatabasePrivate *db = privateDb(); + QtFontDesc desc; + QList<int> blacklistedFamilies; + match(script, req, req.family, QString(), -1, &desc, blacklistedFamilies); + if (!desc.family) // falling back to application font + desc.family = db->family(QApplication::font().defaultFamily()); + Q_ASSERT(desc.family); + + // Making sure that desc.family supports the requested script + QtFontDesc mappedDesc; + bool supportsScript = false; + do { + match(script, req, QString(), QString(), -1, &mappedDesc, blacklistedFamilies); + if (mappedDesc.family == desc.family) { + supportsScript = true; + break; + } + blacklistedFamilies.append(mappedDesc.familyIndex); + } while (mappedDesc.family); + if (!supportsScript) { + blacklistedFamilies.clear(); + match(script, req, QString(), QString(), -1, &mappedDesc, blacklistedFamilies); + if (mappedDesc.family) + desc = mappedDesc; + } + + const QString fontFamily = desc.family->name; + QFontDef request = req; + request.family = fontFamily; +#if defined(QT_NO_FREETYPE) + const QFontDatabaseS60StoreImplementation *store = dynamic_cast<const QFontDatabaseS60StoreImplementation*>(db->s60Store); + Q_ASSERT(store); + const QFontEngineS60Extensions *extension = store->extension(fontFamily); + fe = new QFontEngineS60(request, extension); +#else + QFontEngine::FaceId faceId; + const QtFontFamily * const reqQtFontFamily = db->family(fontFamily); + faceId.filename = reqQtFontFamily->fontFilename; + faceId.index = reqQtFontFamily->fontFileIndex; + + QFontEngineFTS60 *fte = new QFontEngineFTS60(cleanedFontDef(request)); + if (fte->init(faceId, true, QFontEngineFT::Format_A8)) + fe = fte; + else + delete fte; +#endif + + Q_ASSERT(fe); + if (script == QUnicodeTables::Common + && !(req.styleStrategy & QFont::NoFontMerging) + && !fe->symbol) { + + QStringList commonFonts; + for (int ws = 1; ws < QFontDatabase::WritingSystemsCount; ++ws) { + if (scriptForWritingSystem[ws] != script) + continue; + for (int i = 0; i < db->count; ++i) { + if (db->families[i]->writingSystems[ws] & QtFontFamily::Supported) + commonFonts.append(db->families[i]->name); + } + } + + // Hack: Prioritize .ccc fonts + const QString niceEastAsianFont(QLatin1String("Sans MT 936_S60")); + if (commonFonts.removeAll(niceEastAsianFont) > 0) + commonFonts.prepend(niceEastAsianFont); + + fe = new QFontEngineMultiS60(fe, script, commonFonts); + } + } + fe->ref.ref(); + QFontCache::instance()->insertEngine(key, fe); + return fe; +} + +void QFontDatabase::load(const QFontPrivate *d, int script) +{ + QFontEngine *fe = 0; + QFontDef req = d->request; + + if (!d->engineData) { + const QFontCache::Key key(cleanedFontDef(req), script); + getEngineData(d, key); + } + + // the cached engineData could have already loaded the engine we want + if (d->engineData->engines[script]) + fe = d->engineData->engines[script]; + + if (!fe) { + if (qt_enable_test_font && req.family == QLatin1String("__Qt__Box__Engine__")) { + fe = new QTestFontEngine(req.pixelSize); + fe->fontDef = req; + } else { + fe = findFont(script, d, req); + } + d->engineData->engines[script] = fe; + } +} + +QT_END_NAMESPACE |