| /**************************************************************************** |
| ** |
| ** 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. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** 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. |
| ** |
| ** 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. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #define QT_FATAL_ASSERT |
| |
| #include "qplatformdefs.h" |
| |
| #include "qfont.h" |
| #include "qapplication.h" |
| #include "qfontinfo.h" |
| #include "qfontdatabase.h" |
| #include "qfontmetrics.h" |
| #include "qpaintdevice.h" |
| #include "qtextcodec.h" |
| #include "qiodevice.h" |
| #include "qhash.h" |
| |
| #include <private/qunicodetables_p.h> |
| #include "qfont_p.h" |
| #include "qfontengine_p.h" |
| #include "qfontengine_x11_p.h" |
| #include "qtextengine_p.h" |
| |
| #include <private/qt_x11_p.h> |
| #include "qx11info_x11.h" |
| |
| #include <time.h> |
| #include <stdlib.h> |
| #include <ctype.h> |
| |
| #define QFONTLOADER_DEBUG |
| #define QFONTLOADER_DEBUG_VERBOSE |
| |
| QT_BEGIN_NAMESPACE |
| |
| double qt_pixelSize(double pointSize, int dpi) |
| { |
| if (pointSize < 0) |
| return -1.; |
| if (dpi == 75) // the stupid 75 dpi setting on X11 |
| dpi = 72; |
| return (pointSize * dpi) /72.; |
| } |
| |
| double qt_pointSize(double pixelSize, int dpi) |
| { |
| if (pixelSize < 0) |
| return -1.; |
| if (dpi == 75) // the stupid 75 dpi setting on X11 |
| dpi = 72; |
| return pixelSize * 72. / ((double) dpi); |
| } |
| |
| /* |
| Removes wildcards from an XLFD. |
| |
| Returns \a xlfd with all wildcards removed if a match for \a xlfd is |
| found, otherwise it returns \a xlfd. |
| */ |
| static QByteArray qt_fixXLFD(const QByteArray &xlfd) |
| { |
| QByteArray ret = xlfd; |
| int count = 0; |
| char **fontNames = |
| XListFonts(QX11Info::display(), xlfd, 32768, &count); |
| if (count > 0) |
| ret = fontNames[0]; |
| XFreeFontNames(fontNames); |
| return ret ; |
| } |
| |
| typedef QHash<int, QString> FallBackHash; |
| Q_GLOBAL_STATIC(FallBackHash, fallBackHash) |
| |
| // Returns the user-configured fallback family for the specified script. |
| QString qt_fallback_font_family(int script) |
| { |
| FallBackHash *hash = fallBackHash(); |
| return hash->value(script); |
| } |
| |
| // Sets the fallback family for the specified script. |
| Q_GUI_EXPORT void qt_x11_set_fallback_font_family(int script, const QString &family) |
| { |
| FallBackHash *hash = fallBackHash(); |
| if (!family.isEmpty()) |
| hash->insert(script, family); |
| else |
| hash->remove(script); |
| } |
| |
| int QFontPrivate::defaultEncodingID = -1; |
| |
| void QFont::initialize() |
| { |
| extern int qt_encoding_id_for_mib(int mib); // from qfontdatabase_x11.cpp |
| QTextCodec *codec = QTextCodec::codecForLocale(); |
| // determine the default encoding id using the locale, otherwise |
| // fallback to latin1 (mib == 4) |
| int mib = codec ? codec->mibEnum() : 4; |
| |
| // for asian locales, use the mib for the font codec instead of the locale codec |
| switch (mib) { |
| case 38: // eucKR |
| mib = 36; |
| break; |
| |
| case 2025: // GB2312 |
| mib = 57; |
| break; |
| |
| case 113: // GBK |
| mib = -113; |
| break; |
| |
| case 114: // GB18030 |
| mib = -114; |
| break; |
| |
| case 2026: // Big5 |
| mib = -2026; |
| break; |
| |
| case 2101: // Big5-HKSCS |
| mib = -2101; |
| break; |
| |
| case 16: // JIS7 |
| mib = 15; |
| break; |
| |
| case 17: // SJIS |
| case 18: // eucJP |
| mib = 63; |
| break; |
| } |
| |
| // get the default encoding id for the locale encoding... |
| QFontPrivate::defaultEncodingID = qt_encoding_id_for_mib(mib); |
| } |
| |
| void QFont::cleanup() |
| { |
| QFontCache::cleanup(); |
| } |
| |
| /*! |
| \internal |
| X11 Only: Returns the screen with which this font is associated. |
| */ |
| int QFont::x11Screen() const |
| { |
| return d->screen; |
| } |
| |
| /*! \internal |
| X11 Only: Associate the font with the specified \a screen. |
| */ |
| void QFont::x11SetScreen(int screen) |
| { |
| if (screen < 0) // assume default |
| screen = QX11Info::appScreen(); |
| |
| if (screen == d->screen) |
| return; // nothing to do |
| |
| detach(); |
| d->screen = screen; |
| } |
| |
| Qt::HANDLE QFont::handle() const |
| { |
| QFontEngine *engine = d->engineForScript(QUnicodeTables::Common); |
| Q_ASSERT(engine != 0); |
| if (engine->type() == QFontEngine::Multi) |
| engine = static_cast<QFontEngineMulti *>(engine)->engine(0); |
| if (engine->type() == QFontEngine::XLFD) |
| return static_cast<QFontEngineXLFD *>(engine)->fontStruct()->fid; |
| return 0; |
| } |
| |
| |
| FT_Face QFont::freetypeFace() const |
| { |
| #ifndef QT_NO_FREETYPE |
| QFontEngine *engine = d->engineForScript(QUnicodeTables::Common); |
| if (engine->type() == QFontEngine::Multi) |
| engine = static_cast<QFontEngineMulti *>(engine)->engine(0); |
| #ifndef QT_NO_FONTCONFIG |
| if (engine->type() == QFontEngine::Freetype) { |
| const QFontEngineFT *ft = static_cast<const QFontEngineFT *>(engine); |
| return ft->non_locked_face(); |
| } else |
| #endif |
| if (engine->type() == QFontEngine::XLFD) { |
| const QFontEngineXLFD *xlfd = static_cast<const QFontEngineXLFD *>(engine); |
| return xlfd->non_locked_face(); |
| } |
| #endif |
| return 0; |
| } |
| |
| QString QFont::rawName() const |
| { |
| QFontEngine *engine = d->engineForScript(QUnicodeTables::Common); |
| Q_ASSERT(engine != 0); |
| if (engine->type() == QFontEngine::Multi) |
| engine = static_cast<QFontEngineMulti *>(engine)->engine(0); |
| if (engine->type() == QFontEngine::XLFD) |
| return QString::fromLatin1(engine->name()); |
| return QString(); |
| } |
| struct QtFontDesc; |
| |
| void QFont::setRawName(const QString &name) |
| { |
| detach(); |
| |
| // from qfontdatabase_x11.cpp |
| extern bool qt_fillFontDef(const QByteArray &xlfd, QFontDef *fd, int dpi, QtFontDesc *desc); |
| |
| if (!qt_fillFontDef(qt_fixXLFD(name.toLatin1()), &d->request, d->dpi, 0)) { |
| qWarning("QFont::setRawName: Invalid XLFD: \"%s\"", name.toLatin1().constData()); |
| |
| setFamily(name); |
| setRawMode(true); |
| } else { |
| resolve_mask = QFont::AllPropertiesResolved; |
| } |
| } |
| |
| QString QFont::lastResortFamily() const |
| { |
| return QString::fromLatin1("Helvetica"); |
| } |
| |
| QString QFont::defaultFamily() const |
| { |
| switch (d->request.styleHint) { |
| case QFont::Times: |
| return QString::fromLatin1("Times"); |
| |
| case QFont::Courier: |
| return QString::fromLatin1("Courier"); |
| |
| case QFont::Monospace: |
| return QString::fromLatin1("Courier New"); |
| |
| case QFont::Cursive: |
| return QString::fromLatin1("Comic Sans MS"); |
| |
| case QFont::Fantasy: |
| return QString::fromLatin1("Impact"); |
| |
| case QFont::Decorative: |
| return QString::fromLatin1("Old English"); |
| |
| case QFont::Helvetica: |
| case QFont::System: |
| default: |
| return QString::fromLatin1("Helvetica"); |
| } |
| } |
| |
| /* |
| Returns a last resort raw font name for the font matching algorithm. |
| This is used if even the last resort family is not available. It |
| returns \e something, almost no matter what. The current |
| implementation tries a wide variety of common fonts, returning the |
| first one it finds. The implementation may change at any time. |
| */ |
| static const char * const tryFonts[] = { |
| "-*-helvetica-medium-r-*-*-*-120-*-*-*-*-*-*", |
| "-*-courier-medium-r-*-*-*-120-*-*-*-*-*-*", |
| "-*-times-medium-r-*-*-*-120-*-*-*-*-*-*", |
| "-*-lucida-medium-r-*-*-*-120-*-*-*-*-*-*", |
| "-*-helvetica-*-*-*-*-*-120-*-*-*-*-*-*", |
| "-*-courier-*-*-*-*-*-120-*-*-*-*-*-*", |
| "-*-times-*-*-*-*-*-120-*-*-*-*-*-*", |
| "-*-lucida-*-*-*-*-*-120-*-*-*-*-*-*", |
| "-*-helvetica-*-*-*-*-*-*-*-*-*-*-*-*", |
| "-*-courier-*-*-*-*-*-*-*-*-*-*-*-*", |
| "-*-times-*-*-*-*-*-*-*-*-*-*-*-*", |
| "-*-lucida-*-*-*-*-*-*-*-*-*-*-*-*", |
| "-*-fixed-*-*-*-*-*-*-*-*-*-*-*-*", |
| "6x13", |
| "7x13", |
| "8x13", |
| "9x15", |
| "fixed", |
| 0 |
| }; |
| |
| // Returns true if the font exists, false otherwise |
| static bool fontExists(const QString &fontName) |
| { |
| int count; |
| char **fontNames = XListFonts(QX11Info::display(), (char*)fontName.toLatin1().constData(), 32768, &count); |
| if (fontNames) XFreeFontNames(fontNames); |
| |
| return count != 0; |
| } |
| |
| QString QFont::lastResortFont() const |
| { |
| static QString last; |
| |
| // already found |
| if (! last.isNull()) |
| return last; |
| |
| int i = 0; |
| const char* f; |
| |
| while ((f = tryFonts[i])) { |
| last = QString::fromLatin1(f); |
| |
| if (fontExists(last)) |
| return last; |
| |
| i++; |
| } |
| |
| #if defined(CHECK_NULL) |
| qFatal("QFontPrivate::lastResortFont: Cannot find any reasonable font"); |
| #endif |
| return last; |
| } |
| |
| QT_END_NAMESPACE |