diff options
Diffstat (limited to 'src/gui/platforms/s60/qfontdatabase_s60.cpp')
| -rw-r--r-- | src/gui/platforms/s60/qfontdatabase_s60.cpp | 1091 |
1 files changed, 0 insertions, 1091 deletions
diff --git a/src/gui/platforms/s60/qfontdatabase_s60.cpp b/src/gui/platforms/s60/qfontdatabase_s60.cpp deleted file mode 100644 index 1db4a7d359..0000000000 --- a/src/gui/platforms/s60/qfontdatabase_s60.cpp +++ /dev/null @@ -1,1091 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the 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 Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <private/qapplication_p.h> -#include "qdir.h" -#include "qfont_p.h" -#include "qfontengine_s60_p.h" -#include "qabstractfileengine.h" -#include "qdesktopservices.h" -#include "qtemporaryfile.h" -#include "qtextcodec.h" -#include <private/qpixmap_s60_p.h> -#include <private/qt_s60_p.h> -#include "qendian.h" -#include <private/qcore_symbian_p.h> -#ifdef QT_NO_FREETYPE -#include <openfont.h> -#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS -#include <graphics/openfontrasterizer.h> // COpenFontRasterizer has moved to a new header file -#endif // SYMBIAN_ENABLE_SPLIT_HEADERS -#endif // QT_NO_FREETYPE - -QT_BEGIN_NAMESPACE - -QStringList qt_symbian_fontFamiliesOnFontServer() // Also used in qfont_s60.cpp -{ - QStringList result; - QSymbianFbsHeapLock lock(QSymbianFbsHeapLock::Unlock); - const int numTypeFaces = S60->screenDevice()->NumTypefaces(); - for (int i = 0; i < numTypeFaces; i++) { - TTypefaceSupport typefaceSupport; - S60->screenDevice()->TypefaceSupport(typefaceSupport, i); - const QString familyName((const QChar *)typefaceSupport.iTypeface.iName.Ptr(), typefaceSupport.iTypeface.iName.Length()); - result.append(familyName); - } - lock.relock(); - return result; -} - -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(QLatin1String("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; -} - -#ifdef QT_NO_FREETYPE -class QSymbianFontDatabaseExtrasImplementation : public QSymbianFontDatabaseExtras -{ -public: - QSymbianFontDatabaseExtrasImplementation(); - ~QSymbianFontDatabaseExtrasImplementation(); - - const QSymbianTypeFaceExtras *extras(const QString &typeface, bool bold, bool italic) const; - void removeAppFontData(QFontDatabasePrivate::ApplicationFont *fnt); - static inline bool appFontLimitReached(); - TUid addFontFileToFontStore(const QFileInfo &fontFileInfo); - static void clear(); - - static inline QString tempAppFontFolder(); - static const QString appFontMarkerPrefix; - static QString appFontMarker(); // 'qaf<shortUid[+shortPid]>' - - struct CFontFromFontStoreReleaser { - static inline void cleanup(CFont *font) - { - if (!font) - return; - const QSymbianFontDatabaseExtrasImplementation *dbExtras = - static_cast<const QSymbianFontDatabaseExtrasImplementation*>(privateDb()->symbianExtras); - dbExtras->m_store->ReleaseFont(font); - } - }; - - struct CFontFromScreenDeviceReleaser { - static inline void cleanup(CFont *font) - { - if (!font) - return; - S60->screenDevice()->ReleaseFont(font); - } - }; - -// m_heap, m_store, m_rasterizer and m_extras are used if Symbian -// does not provide the Font Table API - RHeap* m_heap; - CFontStore *m_store; - COpenFontRasterizer *m_rasterizer; - mutable QList<const QSymbianTypeFaceExtras *> m_extras; - - mutable QHash<QString, const QSymbianTypeFaceExtras *> m_extrasHash; - mutable QSet<QString> m_applicationFontFamilies; -}; - -const QString QSymbianFontDatabaseExtrasImplementation::appFontMarkerPrefix = - QLatin1String("Q"); - -inline QString QSymbianFontDatabaseExtrasImplementation::tempAppFontFolder() -{ - return QDir::toNativeSeparators(QDir::tempPath()) + QLatin1Char('\\'); -} - -QString QSymbianFontDatabaseExtrasImplementation::appFontMarker() -{ - static QString result; - if (result.isEmpty()) { - quint16 id = 0; - if (QSymbianTypeFaceExtras::symbianFontTableApiAvailable()) { - // We are allowed to load app fonts even from previous, crashed runs - // of this application, since we can access the font tables. - const quint32 uid = RProcess().Type().MostDerived().iUid; - id = static_cast<quint16>(uid + (uid >> 16)); - } else { - // If no font table Api is available, we must not even load a font - // from a previous (crashed) run of this application. Reason: we - // won't get the font tables, they are not in the CFontStore. - // So, we use the pid, for more uniqueness. - id = static_cast<quint16>(RProcess().Id().Id()); - } - result = appFontMarkerPrefix + QString::fromLatin1("%1").arg(id & 0x7fff, 3, 32, QLatin1Char('0')); - Q_ASSERT(appFontMarkerPrefix.length() == 1 && result.length() == 4); - } - return result; -} - -static inline bool qt_symbian_fontNameHasAppFontMarker(const QString &fontName) -{ - const int idLength = 3; // Keep in sync with id length in appFontMarker(). - const QString &prefix = QSymbianFontDatabaseExtrasImplementation::appFontMarkerPrefix; - if (fontName.length() < prefix.length() + idLength - || fontName.mid(fontName.length() - idLength - prefix.length(), prefix.length()) != prefix) - return false; - // Testing if the the id is base32 data - for (int i = fontName.length() - idLength; i < fontName.length(); ++i) { - const QChar &c = fontName.at(i); - if (!(c >= QLatin1Char('0') && c <= QLatin1Char('9') - || c >= QLatin1Char('a') && c <= QLatin1Char('v'))) - return false; - } - return true; -} - -// If fontName is an application font of this app, prepend the app font marker -QString qt_symbian_fontNameWithAppFontMarker(const QString &fontName) -{ - QFontDatabasePrivate *db = privateDb(); - Q_ASSERT(db); - const QSymbianFontDatabaseExtrasImplementation *dbExtras = - static_cast<const QSymbianFontDatabaseExtrasImplementation*>(db->symbianExtras); - return dbExtras->m_applicationFontFamilies.contains(fontName) ? - fontName + QSymbianFontDatabaseExtrasImplementation::appFontMarker() - : fontName; -} - -static inline QString qt_symbian_appFontNameWithoutMarker(const QString &markedFontName) -{ - return markedFontName.left(markedFontName.length() - - QSymbianFontDatabaseExtrasImplementation::appFontMarker().length()); -} - -QSymbianFontDatabaseExtrasImplementation::QSymbianFontDatabaseExtrasImplementation() -{ - if (!QSymbianTypeFaceExtras::symbianFontTableApiAvailable()) { - QStringList filters; - filters.append(QLatin1String("*.ttf")); - filters.append(QLatin1String("*.ccc")); - filters.append(QLatin1String("*.ltt")); - const QFileInfoList fontFiles = alternativeFilePaths(QLatin1String("resource\\Fonts"), filters); - - const TInt heapMinLength = 0x1000; - const TInt heapMaxLength = qMax(0x20000 * fontFiles.count(), heapMinLength); - m_heap = User::ChunkHeap(NULL, heapMinLength, heapMaxLength); - 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);); - - foreach (const QFileInfo &fontFileInfo, fontFiles) - addFontFileToFontStore(fontFileInfo); - } -} - -void QSymbianFontDatabaseExtrasImplementation::clear() -{ - QFontDatabasePrivate *db = privateDb(); - if (!db) - return; - const QSymbianFontDatabaseExtrasImplementation *dbExtras = - static_cast<const QSymbianFontDatabaseExtrasImplementation*>(db->symbianExtras); - if (!dbExtras) - return; // initializeDb() has never been called - if (QSymbianTypeFaceExtras::symbianFontTableApiAvailable()) { - qDeleteAll(dbExtras->m_extrasHash); - } else { - typedef QList<const QSymbianTypeFaceExtras *>::iterator iterator; - for (iterator p = dbExtras->m_extras.begin(); p != dbExtras->m_extras.end(); ++p) { - dbExtras->m_store->ReleaseFont((*p)->fontOwner()); - delete *p; - } - dbExtras->m_extras.clear(); - } - dbExtras->m_extrasHash.clear(); -} - -void qt_cleanup_symbianFontDatabase() -{ - QFontDatabasePrivate *db = privateDb(); - if (!db) - return; - - QSymbianFontDatabaseExtrasImplementation::clear(); - - if (!db->applicationFonts.isEmpty()) { - QFontDatabase::removeAllApplicationFonts(); - // We remove the left over temporary font files of Qt application. - // Active fonts are undeletable since the font server holds a handle - // on them, so we do not need to worry to delete other running - // applications' fonts. - const QDir dir(QSymbianFontDatabaseExtrasImplementation::tempAppFontFolder()); - const QStringList filter( - QSymbianFontDatabaseExtrasImplementation::appFontMarkerPrefix + QLatin1String("*.ttf")); - foreach (const QFileInfo &ttfFile, dir.entryInfoList(filter)) - QFile(ttfFile.absoluteFilePath()).remove(); - db->applicationFonts.clear(); - } -} - -QSymbianFontDatabaseExtrasImplementation::~QSymbianFontDatabaseExtrasImplementation() -{ - qt_cleanup_symbianFontDatabase(); - if (!QSymbianTypeFaceExtras::symbianFontTableApiAvailable()) { - delete m_store; - m_heap->Close(); - } -} - -#ifndef FNTSTORE_H_INLINES_SUPPORT_FMM -/* - Workaround: fntstore.h has an inlined function 'COpenFont* CBitmapFont::OpenFont()' - that returns a private data member. The header will change between SDKs. But Qt has - to build on any SDK version and run on other versions of Symbian OS. - This function performs the needed pointer arithmetic to get the right COpenFont* -*/ -COpenFont* OpenFontFromBitmapFont(const CBitmapFont* aBitmapFont) -{ - const TInt offsetIOpenFont = 92; // '_FOFF(CBitmapFont, iOpenFont)' ..if iOpenFont weren't private - const TUint valueIOpenFont = *(TUint*)PtrAdd(aBitmapFont, offsetIOpenFont); - return (valueIOpenFont & 1) ? - (COpenFont*)PtrAdd(aBitmapFont, valueIOpenFont & ~1) : // New behavior: iOpenFont is offset - (COpenFont*)valueIOpenFont; // Old behavior: iOpenFont is pointer -} -#endif // FNTSTORE_H_INLINES_SUPPORT_FMM - -const QSymbianTypeFaceExtras *QSymbianFontDatabaseExtrasImplementation::extras(const QString &aTypeface, - bool bold, bool italic) const -{ - const QString typeface = qt_symbian_fontNameWithAppFontMarker(aTypeface); - const QString searchKey = typeface + QString::number(int(bold)) + QString::number(int(italic)); - if (!m_extrasHash.contains(searchKey)) { - TFontSpec searchSpec(qt_QString2TPtrC(typeface), 1); - if (bold) - searchSpec.iFontStyle.SetStrokeWeight(EStrokeWeightBold); - if (italic) - searchSpec.iFontStyle.SetPosture(EPostureItalic); - - CFont* font = NULL; - if (QSymbianTypeFaceExtras::symbianFontTableApiAvailable()) { - const TInt err = S60->screenDevice()->GetNearestFontToDesignHeightInPixels(font, searchSpec); - Q_ASSERT(err == KErrNone && font); - QScopedPointer<CFont, CFontFromScreenDeviceReleaser> sFont(font); - QSymbianTypeFaceExtras *extras = new QSymbianTypeFaceExtras(font); - sFont.take(); - m_extrasHash.insert(searchKey, extras); - } else { - const TInt err = m_store->GetNearestFontToDesignHeightInPixels(font, searchSpec); - Q_ASSERT(err == KErrNone && font); - const CBitmapFont *bitmapFont = static_cast<CBitmapFont*>(font); - COpenFont *openFont = -#ifdef FNTSTORE_H_INLINES_SUPPORT_FMM - bitmapFont->OpenFont(); -#else // FNTSTORE_H_INLINES_SUPPORT_FMM - OpenFontFromBitmapFont(bitmapFont); -#endif // FNTSTORE_H_INLINES_SUPPORT_FMM - const TOpenFontFaceAttrib* const attrib = openFont->FaceAttrib(); - const QString foundKey = - QString((const QChar*)attrib->FullName().Ptr(), attrib->FullName().Length()); - if (!m_extrasHash.contains(foundKey)) { - QScopedPointer<CFont, CFontFromFontStoreReleaser> sFont(font); - QSymbianTypeFaceExtras *extras = new QSymbianTypeFaceExtras(font, openFont); - sFont.take(); - m_extras.append(extras); - m_extrasHash.insert(searchKey, extras); - m_extrasHash.insert(foundKey, extras); - } else { - m_store->ReleaseFont(font); - m_extrasHash.insert(searchKey, m_extrasHash.value(foundKey)); - } - } - } - return m_extrasHash.value(searchKey); -} - -void QSymbianFontDatabaseExtrasImplementation::removeAppFontData( - QFontDatabasePrivate::ApplicationFont *fnt) -{ - clear(); - if (!QSymbianTypeFaceExtras::symbianFontTableApiAvailable() - && fnt->fontStoreFontFileUid.iUid != 0) - m_store->RemoveFile(fnt->fontStoreFontFileUid); - if (!fnt->families.isEmpty()) - m_applicationFontFamilies.remove(fnt->families.first()); - if (fnt->screenDeviceFontFileId != 0) - S60->screenDevice()->RemoveFile(fnt->screenDeviceFontFileId); - QFile::remove(fnt->temporaryFileName); - *fnt = QFontDatabasePrivate::ApplicationFont(); -} - -bool QSymbianFontDatabaseExtrasImplementation::appFontLimitReached() -{ - QFontDatabasePrivate *db = privateDb(); - if (!db) - return false; - const int maxAppFonts = 5; - int registeredAppFonts = 0; - foreach (const QFontDatabasePrivate::ApplicationFont &appFont, db->applicationFonts) - if (!appFont.families.isEmpty() && ++registeredAppFonts == maxAppFonts) - return true; - return false; -} - -TUid QSymbianFontDatabaseExtrasImplementation::addFontFileToFontStore(const QFileInfo &fontFileInfo) -{ - Q_ASSERT(!QSymbianTypeFaceExtras::symbianFontTableApiAvailable()); - const QString fontFile = QDir::toNativeSeparators(fontFileInfo.absoluteFilePath()); - const TPtrC fontFilePtr(qt_QString2TPtrC(fontFile)); - TUid fontUid = {0}; - TRAP_IGNORE(fontUid = m_store->AddFileL(fontFilePtr)); - return fontUid; -} - -#else // QT_NO_FREETYPE -class QFontEngineFTS60 : public QFontEngineFT -{ -public: - QFontEngineFTS60(const QFontDef &fd); -}; - -QFontEngineFTS60::QFontEngineFTS60(const QFontDef &fd) - : QFontEngineFT(fd) -{ - default_hint_style = HintFull; -} -#endif // 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) -{ - CWsScreenDevice* device = S60->screenDevice(); - return (orientation == Qt::Horizontal? - device->HorizontalPixelsToTwips(pixels) - :device->VerticalPixelsToTwips(pixels)) / KTwipsPerPoint; -} - -qreal QFontEngineS60::pointsToPixels(qreal points, Qt::Orientation orientation) -{ - CWsScreenDevice* device = S60->screenDevice(); - const int twips = points * KTwipsPerPoint; - return orientation == Qt::Horizontal? - device->HorizontalTwipsToPixels(twips) - :device->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]); -} - -#ifdef QT_NO_FREETYPE -static bool registerScreenDeviceFont(int screenDeviceFontIndex, - const QSymbianFontDatabaseExtrasImplementation *dbExtras) -{ - TTypefaceSupport typefaceSupport; - S60->screenDevice()->TypefaceSupport(typefaceSupport, screenDeviceFontIndex); - - QString familyName((const QChar*)typefaceSupport.iTypeface.iName.Ptr(), typefaceSupport.iTypeface.iName.Length()); - if (qt_symbian_fontNameHasAppFontMarker(familyName)) { - const QString &marker = QSymbianFontDatabaseExtrasImplementation::appFontMarker(); - if (familyName.endsWith(marker)) { - familyName = qt_symbian_appFontNameWithoutMarker(familyName); - dbExtras->m_applicationFontFamilies.insert(familyName); - } else { - return false; // This was somebody else's application font. Skip it. - } - } - - CFont *font; // We have to get a font instance in order to know all the details - TFontSpec fontSpec(typefaceSupport.iTypeface.iName, 11); - if (S60->screenDevice()->GetNearestFontInPixels(font, fontSpec) != KErrNone) - return false; - QScopedPointer<CFont, QSymbianFontDatabaseExtrasImplementation::CFontFromScreenDeviceReleaser> sFont(font); - if (font->TypeUid() != KCFbsFontUid) - return false; - TOpenFontFaceAttrib faceAttrib; - const CFbsFont *cfbsFont = static_cast<const CFbsFont *>(font); - cfbsFont->GetFaceAttrib(faceAttrib); - - QtFontStyle::Key styleKey; - styleKey.style = faceAttrib.IsItalic()?QFont::StyleItalic:QFont::StyleNormal; - styleKey.weight = faceAttrib.IsBold()?QFont::Bold:QFont::Normal; - - QtFontFamily *family = privateDb()->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 QSymbianTypeFaceExtras *typeFaceExtras = - dbExtras->extras(familyName, faceAttrib.IsBold(), faceAttrib.IsItalic()); - const QByteArray os2Table = typeFaceExtras->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 = - qt_determine_writing_systems_from_truetype_bits(unicodeRange, codePageRange); - foreach (const QFontDatabase::WritingSystem system, writingSystems) - family->writingSystems[system] = QtFontFamily::Supported; - return true; -} -#endif - -static void initializeDb() -{ - QFontDatabasePrivate *db = privateDb(); - if(!db || db->count) - return; - -#ifdef QT_NO_FREETYPE - if (!db->symbianExtras) - db->symbianExtras = new QSymbianFontDatabaseExtrasImplementation; - - QSymbianFbsHeapLock lock(QSymbianFbsHeapLock::Unlock); - - const int numTypeFaces = S60->screenDevice()->NumTypefaces(); - const QSymbianFontDatabaseExtrasImplementation *dbExtras = - static_cast<const QSymbianFontDatabaseExtrasImplementation*>(db->symbianExtras); - for (int i = 0; i < numTypeFaces; i++) - registerScreenDeviceFont(i, dbExtras); - - // We have to clear/release all CFonts, here, in case one of the fonts is - // an application font of another running Qt app. Otherwise the other Qt app - // cannot remove it's application font, anymore -> "Zombie Font". - QSymbianFontDatabaseExtrasImplementation::clear(); - - lock.relock(); - -#else // 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 // QT_NO_FREETYPE -} - -static inline void load(const QString &family = QString(), int script = -1) -{ - Q_UNUSED(family) - Q_UNUSED(script) - initializeDb(); -} - -struct OffsetTable { - quint32 sfntVersion; - quint16 numTables, searchRange, entrySelector, rangeShift; -}; - -struct TableRecord { - quint32 tag, checkSum, offset, length; -}; - -struct NameTableHead { - quint16 format, count, stringOffset; -}; - -struct NameRecord { - quint16 platformID, encodingID, languageID, nameID, length, offset; -}; - -static quint32 ttfCalcChecksum(const char *data, quint32 bytesCount) -{ - quint32 result = 0; - const quint32 *ptr = reinterpret_cast<const quint32*>(data); - const quint32 *endPtr = - ptr + (bytesCount + sizeof(quint32) - 1) / sizeof(quint32); - while (ptr < endPtr) { - const quint32 unit32Value = *ptr++; - result += qFromBigEndian(unit32Value); - } - return result; -} - -static inline quint32 toDWordBoundary(quint32 value) -{ - return (value + 3) & ~3; -} - -static inline quint32 dWordPadding(quint32 value) -{ - return (4 - (value & 3)) & 3; -} - -static inline bool ttfMarkNameTable(QByteArray &table, const QString &marker) -{ - const quint32 tableLength = static_cast<quint32>(table.size()); - - if (tableLength > 50000 // hard limit - || tableLength < sizeof(NameTableHead)) // corrupt name table - return false; - - const NameTableHead *head = reinterpret_cast<const NameTableHead*>(table.constData()); - const quint16 count = qFromBigEndian(head->count); - const quint16 stringOffset = qFromBigEndian(head->stringOffset); - if (count > 200 // hard limit - || stringOffset >= tableLength // corrupt name table - || sizeof(NameTableHead) + count * sizeof(NameRecord) >= tableLength) // corrupt name table - return false; - - QTextEncoder encoder(QTextCodec::codecForName("UTF-16BE"), QTextCodec::IgnoreHeader); - const QByteArray markerUtf16BE = encoder.fromUnicode(marker); - const QByteArray markerAscii = marker.toAscii(); - - QByteArray markedTable; - markedTable.reserve(tableLength + marker.length() * 20); // Original size plus some extra - markedTable.append(table, stringOffset); - QByteArray markedStrings; - quint32 stringDataCount = stringOffset; - for (quint16 i = 0; i < count; ++i) { - const quint32 nameRecordOffset = sizeof(NameTableHead) + sizeof(NameRecord) * i; - NameRecord *nameRecord = - reinterpret_cast<NameRecord*>(markedTable.data() + nameRecordOffset); - const quint16 nameID = qFromBigEndian(nameRecord->nameID); - const quint16 platformID = qFromBigEndian(nameRecord->platformID); - const quint16 encodingID = qFromBigEndian(nameRecord->encodingID); - const quint16 offset = qFromBigEndian(nameRecord->offset); - const quint16 length = qFromBigEndian(nameRecord->length); - stringDataCount += length; - if (stringDataCount > 80000 // hard limit. String data may be > name table size. Multiple records can reference the same string. - || static_cast<quint32>(stringOffset + offset + length) > tableLength) // String outside bounds - return false; - const bool needsMarker = - nameID == 1 || nameID == 3 || nameID == 4 || nameID == 16 || nameID == 21; - const bool isUnicode = - platformID == 0 || platformID == 3 && encodingID == 1; - const QByteArray originalString = - QByteArray::fromRawData(table.constData() + stringOffset + offset, length); - QByteArray markedString; - if (needsMarker) { - const int maxBytesLength = (KMaxTypefaceNameLength - marker.length()) * (isUnicode ? 2 : 1); - markedString = originalString.left(maxBytesLength) + (isUnicode ? markerUtf16BE : markerAscii); - } else { - markedString = originalString; - } - nameRecord->offset = qToBigEndian(static_cast<quint16>(markedStrings.length())); - nameRecord->length = qToBigEndian(static_cast<quint16>(markedString.length())); - markedStrings.append(markedString); - } - markedTable.append(markedStrings); - table = markedTable; - return true; -} - -const quint32 ttfMaxFileSize = 3500000; - -static inline bool ttfMarkAppFont(QByteArray &ttf, const QString &marker) -{ - const quint32 ttfChecksumNumber = 0xb1b0afba; - const quint32 alignment = 4; - const quint32 ttfLength = static_cast<quint32>(ttf.size()); - if (ttfLength > ttfMaxFileSize // hard limit - || ttfLength % alignment != 0 // ttf sizes are always factors of 4 - || ttfLength <= sizeof(OffsetTable) // ttf too short - || ttfCalcChecksum(ttf.constData(), ttf.size()) != ttfChecksumNumber) // ttf checksum is invalid - return false; - - const OffsetTable *offsetTable = reinterpret_cast<const OffsetTable*>(ttf.constData()); - const quint16 numTables = qFromBigEndian(offsetTable->numTables); - const quint32 recordsLength = - toDWordBoundary(sizeof(OffsetTable) + numTables * sizeof(TableRecord)); - if (numTables > 30 // hard limit - || recordsLength + numTables * alignment > ttfLength) // Corrupt ttf. Tables would not fit, even if empty. - return false; - - QByteArray markedTtf; - markedTtf.reserve(ttfLength + marker.length() * 20); // Original size plus some extra - markedTtf.append(ttf.constData(), recordsLength); - - const quint32 ttfCheckSumAdjustmentOffset = 8; // Offset from the start of 'head' - int indexOfHeadTable = -1; - quint32 ttfDataSize = recordsLength; - typedef QPair<quint32, quint32> Range; - QList<Range> memoryRanges; - memoryRanges.reserve(numTables); - for (int i = 0; i < numTables; ++i) { - TableRecord *tableRecord = - reinterpret_cast<TableRecord*>(markedTtf.data() + sizeof(OffsetTable) + i * sizeof(TableRecord)); - const quint32 offset = qFromBigEndian(tableRecord->offset); - const quint32 length = qFromBigEndian(tableRecord->length); - const quint32 lengthAligned = toDWordBoundary(length); - ttfDataSize += lengthAligned; - if (offset < recordsLength // must not intersect ttf header/records - || offset % alignment != 0 // must be aligned - || offset > ttfLength - alignment // table out of bounds - || offset + lengthAligned > ttfLength // table out of bounds - || ttfDataSize > ttfLength) // tables would not fit into the ttf - return false; - - foreach (const Range &range, memoryRanges) - if (offset < range.first + range.second && offset + lengthAligned > range.first) - return false; // Overlaps with another table - memoryRanges.append(Range(offset, lengthAligned)); - - quint32 checkSum = qFromBigEndian(tableRecord->checkSum); - if (tableRecord->tag == qToBigEndian(static_cast<quint32>('head'))) { - if (length < ttfCheckSumAdjustmentOffset + sizeof(quint32)) - return false; // Invalid 'head' table - const quint32 *checkSumAdjustmentTag = - reinterpret_cast<const quint32*>(ttf.constData() + offset + ttfCheckSumAdjustmentOffset); - const quint32 checkSumAdjustment = qFromBigEndian(*checkSumAdjustmentTag); - checkSum += checkSumAdjustment; - indexOfHeadTable = i; // For the ttf checksum re-calculation, later - } - if (checkSum != ttfCalcChecksum(ttf.constData() + offset, length)) - return false; // Table checksum is invalid - - bool updateTableChecksum = false; - QByteArray table; - if (tableRecord->tag == qToBigEndian(static_cast<quint32>('name'))) { - table = QByteArray(ttf.constData() + offset, length); - if (!ttfMarkNameTable(table, marker)) - return false; // Name table was not markable. - updateTableChecksum = true; - } else { - table = QByteArray::fromRawData(ttf.constData() + offset, length); - } - - tableRecord->offset = qToBigEndian(markedTtf.size()); - tableRecord->length = qToBigEndian(table.size()); - markedTtf.append(table); - markedTtf.append(QByteArray(dWordPadding(table.size()), 0)); // 0-padding - if (updateTableChecksum) { - TableRecord *tableRecord = // Need to recalculate, since markedTtf changed - reinterpret_cast<TableRecord*>(markedTtf.data() + sizeof(OffsetTable) + i * sizeof(TableRecord)); - const quint32 offset = qFromBigEndian(tableRecord->offset); - const quint32 length = qFromBigEndian(tableRecord->length); - tableRecord->checkSum = qToBigEndian(ttfCalcChecksum(markedTtf.constData() + offset, length)); - } - } - if (indexOfHeadTable == -1 // 'head' table is mandatory - || ttfDataSize != ttfLength) // We do not allow ttf data "holes". Neither does Symbian. - return false; - TableRecord *headRecord = - reinterpret_cast<TableRecord*>(markedTtf.data() + sizeof(OffsetTable) + indexOfHeadTable * sizeof(TableRecord)); - quint32 *checkSumAdjustmentTag = - reinterpret_cast<quint32*>(markedTtf.data() + qFromBigEndian(headRecord->offset) + ttfCheckSumAdjustmentOffset); - *checkSumAdjustmentTag = 0; - const quint32 ttfChecksum = ttfCalcChecksum(markedTtf.constData(), markedTtf.count()); - *checkSumAdjustmentTag = qToBigEndian(ttfChecksumNumber - ttfChecksum); - ttf = markedTtf; - return true; -} - -static inline bool ttfCanSymbianLoadFont(const QByteArray &data, const QString &fileName) -{ - bool result = false; - QString ttfFileName; - QFile tempFileGuard; - QFileInfo info(fileName); - if (!data.isEmpty()) { - QTemporaryFile tempfile(QSymbianFontDatabaseExtrasImplementation::tempAppFontFolder() - + QSymbianFontDatabaseExtrasImplementation::appFontMarker() - + QLatin1String("XXXXXX.ttf")); - if (!tempfile.open() || tempfile.write(data) == -1) - return false; - ttfFileName = QDir::toNativeSeparators(QFileInfo(tempfile).canonicalFilePath()); - tempfile.setAutoRemove(false); - tempfile.close(); - tempFileGuard.setFileName(ttfFileName); - if (!tempFileGuard.open(QIODevice::ReadOnly)) - return false; - } else if (info.isFile()) { - ttfFileName = QDir::toNativeSeparators(info.canonicalFilePath()); - } else { - return false; - } - - CFontStore *store = 0; - RHeap* heap = User::ChunkHeap(NULL, 0x1000, 0x20000); - if (heap) { - QT_TRAP_THROWING( - CleanupClosePushL(*heap); - store = CFontStore::NewL(heap); - CleanupStack::PushL(store); - COpenFontRasterizer *rasterizer = COpenFontRasterizer::NewL(TUid::Uid(0x101F7F5E)); - CleanupStack::PushL(rasterizer); - store->InstallRasterizerL(rasterizer); - CleanupStack::Pop(rasterizer); - TUid fontUid = {-1}; - TRAP_IGNORE(fontUid = store->AddFileL(qt_QString2TPtrC(ttfFileName))); - if (fontUid.iUid != -1) - result = true; - CleanupStack::PopAndDestroy(2, heap); // heap, store - ); - } - - if (tempFileGuard.isOpen()) - tempFileGuard.remove(); - - return result; -} - -static void registerFont(QFontDatabasePrivate::ApplicationFont *fnt) -{ - if (QSymbianFontDatabaseExtrasImplementation::appFontLimitReached() - || fnt->data.size() > ttfMaxFileSize // hard limit - || fnt->data.isEmpty() && (!fnt->fileName.endsWith(QLatin1String(".ttf"), Qt::CaseInsensitive) // Only buffer or .ttf - || QFileInfo(fnt->fileName).size() > ttfMaxFileSize)) // hard limit - return; - -// Using ttfCanSymbianLoadFont() causes crashes on app destruction (Symbian^3|PR1 and lower). -// Therefore, not using it for now, but eventually in a later version. -// if (!ttfCanSymbianLoadFont(fnt->data, fnt->fileName)) -// return; - - QFontDatabasePrivate *db = privateDb(); - if (!db) - return; - - if (!db->count) - initializeDb(); - - QSymbianFontDatabaseExtrasImplementation *dbExtras = - static_cast<QSymbianFontDatabaseExtrasImplementation*>(db->symbianExtras); - if (!dbExtras) - return; - - const QString &marker = QSymbianFontDatabaseExtrasImplementation::appFontMarker(); - - // The QTemporaryFile object being used in the following section must be - // destructed before letting Symbian load the TTF file. Symbian would not - // load it otherwise, because QTemporaryFile will still keep some handle - // on it. The scope is used to reduce the life time of the QTemporaryFile. - // In order to prevent other processes from modifying the file between the - // moment where the QTemporaryFile is destructed and the file is loaded by - // Symbian, we have a QFile "tempFileGuard" outside the scope which opens - // the file in ReadOnly mode while the QTemporaryFile is still alive. - QFile tempFileGuard; - { - QTemporaryFile tempfile(QSymbianFontDatabaseExtrasImplementation::tempAppFontFolder() - + marker + QLatin1String("XXXXXX.ttf")); - if (!tempfile.open()) - return; - const QString tempFileName = QFileInfo(tempfile).canonicalFilePath(); - if (fnt->data.isEmpty()) { - QFile sourceFile(fnt->fileName); - if (!sourceFile.open(QIODevice::ReadOnly)) - return; - fnt->data = sourceFile.readAll(); - } - if (!ttfMarkAppFont(fnt->data, marker) || tempfile.write(fnt->data) == -1) - return; - tempfile.setAutoRemove(false); - tempfile.close(); // Tempfile still keeps a file handle, forbidding write access - fnt->data.clear(); // The TTF data was marked and saved. Not needed in memory, anymore. - tempFileGuard.setFileName(tempFileName); - if (!tempFileGuard.open(QIODevice::ReadOnly)) - return; - fnt->temporaryFileName = tempFileName; - } - - const QString fullFileName = QDir::toNativeSeparators(fnt->temporaryFileName); - QSymbianFbsHeapLock lock(QSymbianFbsHeapLock::Unlock); - const QStringList fontsOnServerBefore = qt_symbian_fontFamiliesOnFontServer(); - const TInt err = - S60->screenDevice()->AddFile(qt_QString2TPtrC(fullFileName), fnt->screenDeviceFontFileId); - tempFileGuard.close(); // Did its job - const QStringList fontsOnServerAfter = qt_symbian_fontFamiliesOnFontServer(); - if (err == KErrNone && fontsOnServerBefore.count() < fontsOnServerAfter.count()) { // Added to screen device? - int fontOnServerIndex = fontsOnServerAfter.count() - 1; - for (int i = 0; i < fontsOnServerBefore.count(); i++) { - if (fontsOnServerBefore.at(i) != fontsOnServerAfter.at(i)) { - fontOnServerIndex = i; - break; - } - } - - // Must remove all font engines with their CFonts, first. - QFontCache::instance()->clear(); - db->free(); - QSymbianFontDatabaseExtrasImplementation::clear(); - - if (!QSymbianTypeFaceExtras::symbianFontTableApiAvailable()) - fnt->fontStoreFontFileUid = dbExtras->addFontFileToFontStore(QFileInfo(fullFileName)); - - const QString &appFontName = fontsOnServerAfter.at(fontOnServerIndex); - fnt->families.append(qt_symbian_appFontNameWithoutMarker(appFontName)); - if (!qt_symbian_fontNameHasAppFontMarker(appFontName) - || !registerScreenDeviceFont(fontOnServerIndex, dbExtras)) - dbExtras->removeAppFontData(fnt); - } else { - if (fnt->screenDeviceFontFileId > 0) - S60->screenDevice()->RemoveFile(fnt->screenDeviceFontFileId); // May still have the file open! - QFile::remove(fnt->temporaryFileName); - *fnt = QFontDatabasePrivate::ApplicationFont(); - } - lock.relock(); -} - -bool QFontDatabase::removeApplicationFont(int handle) -{ - QMutexLocker locker(fontDatabaseMutex()); - - QFontDatabasePrivate *db = privateDb(); - if (!db || handle < 0 || handle >= db->applicationFonts.count()) - return false; - QSymbianFontDatabaseExtrasImplementation *dbExtras = - static_cast<QSymbianFontDatabaseExtrasImplementation*>(db->symbianExtras); - if (!dbExtras) - return false; - - QFontDatabasePrivate::ApplicationFont *fnt = &db->applicationFonts[handle]; - if (fnt->families.isEmpty()) - return true; // Nothing to remove. Return peacefully. - - // Must remove all font engines with their CFonts, first - QFontCache::instance()->clear(); - db->free(); - dbExtras->removeAppFontData(fnt); - - db->invalidate(); // This will just emit 'fontDatabaseChanged()' - return true; -} - -bool QFontDatabase::removeAllApplicationFonts() -{ - QMutexLocker locker(fontDatabaseMutex()); - - const int applicationFontsCount = privateDb()->applicationFonts.count(); - for (int i = 0; i < applicationFontsCount; ++i) - if (!removeApplicationFont(i)) - return false; - return true; -} - -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 *d, 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, key.def, key.def.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; -#ifdef QT_NO_FREETYPE - const QSymbianFontDatabaseExtrasImplementation *dbExtras = - static_cast<const QSymbianFontDatabaseExtrasImplementation*>(db->symbianExtras); - const QSymbianTypeFaceExtras *typeFaceExtras = - dbExtras->extras(fontFamily, request.weight > QFont::Normal, request.style != QFont::StyleNormal); - - // We need a valid pixelSize, e.g. for lineThickness() - if (request.pixelSize < 0) - request.pixelSize = request.pointSize * d->dpi / 72; - - fe = new QFontEngineS60(request, typeFaceExtras); -#else // QT_NO_FREETYPE - Q_UNUSED(d) - 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 // QT_NO_FREETYPE - - 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 |