/**************************************************************************** ** $Id: qfontdatabase.cpp 8 2005-11-16 19:36:46Z dmik $ ** ** Implementation of font database class. ** ** Created : 990603 ** ** Copyright (C) 1999-2000 Trolltech AS. All rights reserved. ** ** This file is part of the kernel module of the Qt GUI Toolkit. ** ** This file may be distributed under the terms of the Q Public License ** as defined by Trolltech AS of Norway and appearing in the file ** LICENSE.QPL included in the packaging of this file. ** ** This file may be distributed and/or modified under the terms of the ** GNU General Public License version 2 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. ** ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition ** licenses may use this file in accordance with the Qt Commercial License ** Agreement provided with the Software. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for ** information about Qt Commercial License Agreements. ** See http://www.trolltech.com/qpl/ for QPL licensing information. ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #include "qfontdatabase.h" #ifndef QT_NO_FONTDATABASE #include #include #include #include "qfontengine_p.h" #include #ifdef Q_WS_X11 #include #endif #include // #define QFONTDATABASE_DEBUG #ifdef QFONTDATABASE_DEBUG # define FD_DEBUG qDebug #else # define FD_DEBUG if (FALSE) qDebug #endif // #define FONT_MATCH_DEBUG #ifdef FONT_MATCH_DEBUG # define FM_DEBUG qDebug #else # define FM_DEBUG if (FALSE) qDebug #endif #if defined(Q_CC_MSVC) && !defined(Q_CC_MSVC_NET) # define for if(0){}else for #endif #define SMOOTH_SCALABLE 0xffff static int ucstricmp( const QString &as, const QString &bs ) { const QChar *a = as.unicode(); const QChar *b = bs.unicode(); if ( a == b ) return 0; if ( a == 0 ) return 1; if ( b == 0 ) return -1; int l=QMIN(as.length(),bs.length()); while ( l-- && ::lower( *a ) == ::lower( *b ) ) a++,b++; if ( l==-1 ) return ( as.length()-bs.length() ); return ::lower( *a ).unicode() - ::lower( *b ).unicode(); } static int getFontWeight( const QString &weightString ) { QString s = weightString.lower(); // Test in decreasing order of commonness if (s == "medium" || s == "normal") return QFont::Normal; if (s == "bold") return QFont::Bold; if (s == "demibold" || s == "demi bold") return QFont::DemiBold; if (s == "black") return QFont::Black; if (s == "light") return QFont::Light; if (s.contains("bold")) { if (s.contains("demi")) return (int) QFont::DemiBold; return (int) QFont::Bold; } if (s.contains("light")) return (int) QFont::Light; if (s.contains("black")) return (int) QFont::Black; return (int) QFont::Normal; } #ifdef Q_WS_X11 struct QtFontEncoding { signed int encoding : 16; uint xpoint : 16; uint xres : 8; uint yres : 8; uint avgwidth : 16; uchar pitch : 8; }; #endif // Q_WS_X11 struct QtFontSize { unsigned short pixelSize; #ifdef Q_WS_PM unsigned short pointSize; // in deca-points LONG lMatch; #endif #ifdef Q_WS_X11 int count; QtFontEncoding *encodings; QtFontEncoding *encodingID( int id, uint xpoint = 0, uint xres = 0, uint yres = 0, uint avgwidth = 0, bool add = FALSE); #endif // Q_WS_X11 }; #ifdef Q_WS_X11 QtFontEncoding *QtFontSize::encodingID( int id, uint xpoint, uint xres, uint yres, uint avgwidth, bool add ) { // we don't match using the xpoint, xres and yres parameters, only the id for ( int i = 0; i < count; ++i ) { if ( encodings[i].encoding == id ) return encodings + i; } if ( !add ) return 0; if ( !(count % 4) ) encodings = ( QtFontEncoding * ) realloc( encodings, (((count+4) >> 2 ) << 2 ) * sizeof( QtFontEncoding ) ); encodings[count].encoding = id; encodings[count].xpoint = xpoint; encodings[count].xres = xres; encodings[count].yres = yres; encodings[count].avgwidth = avgwidth; encodings[count].pitch = '*'; return encodings + count++; } #endif // Q_WS_X11 struct QtFontStyle { struct Key { Key( const QString &styleString ); Key() : italic( FALSE ), oblique( FALSE ), weight( QFont::Normal ), stretch( 0 ) { } Key( const Key &o ) : italic( o.italic ), oblique( o.oblique ), weight( o.weight ), stretch( o.stretch ) { } uint italic : 1; uint oblique : 1; signed int weight : 8; signed int stretch : 12; bool operator==( const Key & other ) { return ( italic == other.italic && oblique == other.oblique && weight == other.weight && (stretch == 0 || other.stretch == 0 || stretch == other.stretch) ); } bool operator!=( const Key &other ) { return !operator==(other); } bool operator <( const Key &o ) { int x = (italic << 13) + (oblique << 12) + (weight << 14) + stretch; int y = (o.italic << 13) + (o.oblique << 12) + (o.weight << 14) + o.stretch; return ( x < y ); } }; QtFontStyle( const Key &k ) : key( k ), bitmapScalable( FALSE ), smoothScalable( FALSE ), fakeOblique( FALSE ), count( 0 ), pixelSizes( 0 ) { #if defined(Q_WS_PM) szFacename[0] = 0; #elif defined(Q_WS_X11) weightName = setwidthName = 0; #endif } ~QtFontStyle() { #ifdef Q_WS_X11 delete [] weightName; delete [] setwidthName; while ( count-- ) free(pixelSizes[count].encodings); #endif free( pixelSizes ); } Key key; bool bitmapScalable : 1; bool smoothScalable : 1; bool fakeOblique : 1; int count : 29; QtFontSize *pixelSizes; #ifdef Q_WS_PM CHAR szFacename [FACESIZE]; #endif #ifdef Q_WS_X11 const char *weightName; const char *setwidthName; #endif // Q_WS_X11 #ifdef Q_WS_PM QtFontSize *pixelSize( unsigned short size, bool = FALSE, unsigned short pointSize = 0 ); #else QtFontSize *pixelSize( unsigned short size, bool = FALSE ); #endif }; QtFontStyle::Key::Key( const QString &styleString ) : italic( FALSE ), oblique( FALSE ), weight( QFont::Normal ), stretch( 0 ) { weight = getFontWeight( styleString ); if ( styleString.contains( "Italic" ) ) italic = TRUE; else if ( styleString.contains( "Oblique" ) ) oblique = TRUE; } #ifdef Q_WS_PM QtFontSize *QtFontStyle::pixelSize( unsigned short size, bool add, unsigned short pointSize ) #else QtFontSize *QtFontStyle::pixelSize( unsigned short size, bool add ) #endif { for ( int i = 0; i < count; i++ ) { #ifdef Q_WS_PM if ( pixelSizes[i].pixelSize == size && ( size == SMOOTH_SCALABLE || !pointSize || pixelSizes[i].pointSize == pointSize ) ) #else if ( pixelSizes[i].pixelSize == size ) #endif return pixelSizes + i; } if ( !add ) return 0; if ( !(count % 8) ) pixelSizes = (QtFontSize *) realloc( pixelSizes, (((count+8) >> 3 ) << 3) * sizeof(QtFontSize) ); pixelSizes[count].pixelSize = size; #ifdef Q_WS_PM pixelSizes[count].pointSize = pointSize; pixelSizes[count].lMatch = 0; #endif #ifdef Q_WS_X11 pixelSizes[count].count = 0; pixelSizes[count].encodings = 0; #endif return pixelSizes + (count++); } struct QtFontFoundry { QtFontFoundry( const QString &n ) : name( n ), count( 0 ), styles( 0 ) {} ~QtFontFoundry() { while ( count-- ) delete styles[count]; free( styles ); } QString name; int count; QtFontStyle **styles; QtFontStyle *style( const QtFontStyle::Key &, bool = FALSE ); }; QtFontStyle *QtFontFoundry::style( const QtFontStyle::Key &key, bool create ) { int pos = 0; if ( count ) { int low = 0; int high = count; pos = count / 2; while ( high > low ) { if ( styles[pos]->key == key ) return styles[pos]; if ( styles[pos]->key < key ) low = pos + 1; else high = pos; pos = (high + low) / 2; }; pos = low; } if ( !create ) return 0; // qDebug("adding key (weight=%d, italic=%d, oblique=%d stretch=%d) at %d", key.weight, key.italic, key.oblique, key.stretch, pos ); if ( !(count % 8) ) styles = (QtFontStyle **) realloc( styles, (((count+8) >> 3 ) << 3) * sizeof( QtFontStyle * ) ); memmove( styles + pos + 1, styles + pos, (count-pos)*sizeof(QtFontStyle *) ); styles[pos] = new QtFontStyle( key ); count++; return styles[pos]; } struct QtFontFamily { enum ScriptStatus { Unknown = 0, Supported = 1, UnSupported_Xft= 2, UnSupported_Xlfd = 4, UnSupported = 6 }; QtFontFamily(const QString &n ) : fixedPitch( FALSE ), #ifdef Q_WS_X11 hasXft( FALSE ), xftScriptCheck( FALSE ), xlfdLoaded( FALSE ), #endif #ifdef Q_WS_WIN scriptCheck( FALSE ), #endif #if defined(Q_OS_MAC) && !defined(QWS) fixedPitchComputed(FALSE), #endif fullyLoaded( FALSE ), name( n ), count( 0 ), foundries( 0 ) { memset( scripts, 0, sizeof( scripts ) ); #ifdef Q_WS_PM //@@TODO (dmik): temporary solution to let QFontDialog work: // at least UnknownScript is supported. scripts[QFont::UnknownScript] = Supported; #endif } ~QtFontFamily() { while ( count-- ) delete foundries[count]; free( foundries ); } bool fixedPitch : 1; #ifdef Q_WS_X11 bool hasXft : 1; bool xftScriptCheck : 1; bool xlfdLoaded : 1; #endif #ifdef Q_WS_WIN bool scriptCheck : 1; #endif #if defined(Q_OS_MAC) && !defined(QWS) bool fixedPitchComputed : 1; #endif bool fullyLoaded : 1; QString name; #ifndef Q_WS_X11 QString rawName; #endif #ifdef Q_WS_X11 QCString fontFilename; int fontFileIndex; #endif int count; QtFontFoundry **foundries; unsigned char scripts[QFont::LastPrivateScript]; QtFontFoundry *foundry( const QString &f, bool = FALSE ); }; QtFontFoundry *QtFontFamily::foundry( const QString &f, bool create ) { if ( f.isNull() && count == 1 ) return foundries[0]; for ( int i = 0; i < count; i++ ) { if ( ucstricmp( foundries[i]->name, f ) == 0 ) return foundries[i]; } if ( !create ) return 0; if ( !(count % 8) ) foundries = (QtFontFoundry **) realloc( foundries, (((count+8) >> 3 ) << 3) * sizeof( QtFontFoundry * ) ); foundries[count] = new QtFontFoundry( f ); return foundries[count++]; } class QFontDatabasePrivate { public: QFontDatabasePrivate() : count( 0 ), families( 0 ) { } ~QFontDatabasePrivate() { #ifdef Q_WS_PM cleanup(); #else while ( count-- ) delete families[count]; free( families ); #endif } QtFontFamily *family( const QString &f, bool = FALSE ); int count; QtFontFamily **families; #ifdef Q_WS_PM static QFontDatabasePrivate* instance(); private: void cleanup() { while ( count ) delete families[--count]; free( families ); families = 0; } void reload(); #endif }; QtFontFamily *QFontDatabasePrivate::family( const QString &f, bool create ) { int low = 0; int high = count; int pos = count / 2; int res = 1; if ( count ) { while ( (res = ucstricmp( families[pos]->name, f )) && pos != low ) { if ( res > 0 ) high = pos; else low = pos; pos = (high + low) / 2; }; if ( !res ) return families[pos]; } if ( !create ) return 0; if ( res < 0 ) pos++; // qDebug("adding family %s at %d total=%d", f.latin1(), pos, count); if ( !(count % 8) ) families = (QtFontFamily **) realloc( families, (((count+8) >> 3 ) << 3) * sizeof( QtFontFamily * ) ); memmove( families + pos + 1, families + pos, (count-pos)*sizeof(QtFontFamily *) ); families[pos] = new QtFontFamily( f ); count++; return families[pos]; } #if defined(Q_WS_X11) || defined(Q_WS_WIN) static const unsigned short sample_chars[QFont::LastPrivateScript] = { // European Alphabetic Scripts // Latin, 0x0041, // Greek, 0x0390, // Cyrillic, 0x0410, // Armenian, 0x0540, // Georgian, 0x10d0, // Runic, 0x16a0, // Ogham, 0x1680, // SpacingModifiers, 0x02b0, // CombiningMarks, 0x0300, // Middle Eastern Scripts // Hebrew, 0x05d0, // Arabic, 0x0630, // Syriac, 0x0710, // Thaana, 0x0780, // South and Southeast Asian Scripts // Devanagari, 0x0910, // Bengali, 0x0990, // Gurmukhi, 0x0a10, // Gujarati, 0x0a90, // Oriya, 0x0b10, // Tamil, 0x0b90, // Telugu, 0x0c10, // Kannada, 0x0c90, // Malayalam, 0x0d10, // Sinhala, 0x0d90, // Thai, 0x0e10, // Lao, 0x0e81, // Tibetan, 0x0f00, // Myanmar, 0x1000, // Khmer, 0x1780, // East Asian Scripts // Han, 0x4e00, // Hiragana, 0x3050, // Katakana, 0x30b0, // Hangul, 0xac00, // Bopomofo, 0x3110, // Yi, 0xa000, // Additional Scripts // Ethiopic, 0x1200, // Cherokee, 0x13a0, // CanadianAboriginal, 0x1410, // Mongolian, 0x1800, // Symbols // CurrencySymbols, 0x20aa, // LetterlikeSymbols, 0x2122, // NumberForms, 0x215b, // MathematicalOperators, 0x222b, // TechnicalSymbols, 0x2440, // GeometricSymbols, 0x2500, // MiscellaneousSymbols, 0x2600, // EnclosedAndSquare, 0x2460, // Braille, 0x2800, // Unicode, 0xfffd, // some scripts added in Unicode 3.2 // Tagalog, 0x1700, // Hanunoo, 0x1720, // Buhid, 0x1740, // Tagbanwa, 0x1770, // KatakanaHalfWidth 0xff65, // Limbu 0x1901, // TaiLe 0x1950, // NScripts 0x0000, // NoScript 0x0000, // Han_Japanese 0x4e00, // Han_SimplifiedChinese, 0x4e00, // Han_TraditionalChinese, 0x4e00, // Han_Korean 0x4e00 }; #if defined(Q_WS_X11) && !defined(QT_NO_XFTFREETYPE) static inline bool requiresOpenType(QFont::Script s) { return (s >= QFont::Syriac && s <= QFont::Sinhala) || (s >= QFont::Tibetan && s <= QFont::Khmer); } #endif // returns a sample unicode character for the specified script static QChar sampleCharacter(QFont::Script script) { return QChar(sample_chars[script]); } static inline bool canRender( QFontEngine *fe, QFont::Script script ) { if ( !fe ) return FALSE; QChar sample = sampleCharacter(script); bool hasChar = fe->canRender( &sample, 1 ); #ifdef FONT_MATCH_DEBUG if (hasChar) FM_DEBUG(" font has char 0x%04x", sample.unicode() ); #endif #if defined(Q_WS_X11) && !defined(QT_NO_XFTFREETYPE) if (hasChar && requiresOpenType(script)) { QOpenType *ot = fe->openType(); if (!ot || !ot->supportsScript(script)) return false; } #endif return hasChar; } #endif // Q_WS_X11 || Q_WS_WIN static QSingleCleanupHandler qfontdatabase_cleanup; #ifdef Q_WS_PM QFontDatabasePrivate* QFontDatabasePrivate::instance() { static QFontDatabasePrivate *db = 0; if ( !db ) { db = new QFontDatabasePrivate; qfontdatabase_cleanup.set(&db); db->reload(); } return db; } #else static QFontDatabasePrivate *db=0; #endif #if defined( Q_WS_X11 ) # include "qfontdatabase_x11.cpp" #elif defined( Q_WS_MAC ) # include "qfontdatabase_mac.cpp" #elif defined( Q_WS_WIN ) # include "qfontdatabase_win.cpp" #elif defined( Q_WS_PM ) # include "qfontdatabase_pm.cpp" #elif defined( Q_WS_QWS ) # include "qfontdatabase_qws.cpp" #endif #if defined(Q_WS_X11) || defined(Q_WS_WIN) || defined(Q_WS_PM) static unsigned int bestFoundry( QFont::Script script, unsigned int score, int styleStrategy, const QtFontFamily *family, const QString &foundry_name, QtFontStyle::Key styleKey, int pixelSize, char pitch, QtFontFoundry **best_foundry, QtFontStyle **best_style, QtFontSize **best_size #if defined(Q_WS_X11) , QtFontEncoding **best_encoding, int force_encoding_id #elif defined(Q_WS_PM) , int pointSize #endif ) { Q_UNUSED( script ); Q_UNUSED( pitch ); FM_DEBUG( " REMARK: looking for best foundry for family '%s'", family->name.latin1() ); for ( int x = 0; x < family->count; ++x ) { QtFontFoundry *foundry = family->foundries[x]; if ( ! foundry_name.isEmpty() && ucstricmp( foundry->name, foundry_name ) != 0 ) continue; FM_DEBUG( " looking for matching style in foundry '%s'", foundry->name.isEmpty() ? "-- none --" : foundry->name.latin1() ); QtFontStyle *style = 0; int best = 0; int dist = 0xffff; for ( int i = 0; i < foundry->count; i++ ) { style = foundry->styles[i]; int d = QABS( styleKey.weight - style->key.weight ); if ( styleKey.stretch != 0 && style->key.stretch != 0 ) { d += QABS( styleKey.stretch - style->key.stretch ); } if ( styleKey.italic ) { if ( !style->key.italic ) d += style->key.oblique ? 0x0800 : 0x1000; } else if ( styleKey.oblique ) { if (!style->key.oblique ) d += style->key.italic ? 0x0800 : 0x1000; } else if ( style->key.italic || style->key.oblique ) { d += 0x1000; } if ( d < dist ) { best = i; dist = d; } } FM_DEBUG( " best style has distance 0x%x", dist ); style = foundry->styles[best]; if ( ! style->smoothScalable && ( styleStrategy & QFont::ForceOutline ) ) { FM_DEBUG( " ForceOutline set, but not smoothly scalable" ); continue; } int px = -1; QtFontSize *size = 0; // 1. see if we have an exact matching size if (! (styleStrategy & QFont::ForceOutline)) { #if defined(Q_WS_PM) size = style->pixelSize(pixelSize, FALSE, pointSize); #else size = style->pixelSize(pixelSize); #endif if (size) px = size->pixelSize; } // 2. see if we have a smoothly scalable font if (! size && style->smoothScalable && ! (styleStrategy & QFont::PreferBitmap)) { size = style->pixelSize(SMOOTH_SCALABLE); if (size) px = pixelSize; } // 3. see if we have a bitmap scalable font if (! size && style->bitmapScalable && (styleStrategy & QFont::PreferMatch)) { size = style->pixelSize(0); if (size) px = pixelSize; } // 4. find closest size match if (! size) { unsigned int distance = ~0u; for (int x = 0; x < style->count; ++x) { unsigned int d = QABS(style->pixelSizes[x].pixelSize - pixelSize); if (d < distance) { distance = d; size = style->pixelSizes + x; } } if (style->bitmapScalable && ! (styleStrategy & QFont::PreferQuality) && (distance * 10 / pixelSize) >= 2) { // the closest size is not close enough, go ahead and // use a bitmap scaled font size = style->pixelSize(0); px = pixelSize; } else { px = size->pixelSize; } } #ifdef Q_WS_X11 QtFontEncoding *encoding = 0; if ( force_encoding_id >= 0 ) { encoding = size->encodingID( force_encoding_id ); if ( ! encoding ) { FM_DEBUG( " required encoding_id not available" ); continue; } } else { encoding = size->encodingID( -1 ); // -1 == prefer Xft if ( encoding && ( styleStrategy & ( QFont::OpenGLCompatible | QFont::PreferBitmap ) ) ) { FM_DEBUG( " PreferBitmap and/or OpenGL set, skipping Xft" ); continue; } if ( ! encoding ) { // Xft not available, find an XLFD font // try the default encoding first encoding = size->encodingID( QFontPrivate::defaultEncodingID ); if ( ! encoding || ! scripts_for_xlfd_encoding[encoding->encoding][script] ) { // find the first encoding that supports the requested script encoding = 0; for (int x = 0; !encoding && x < size->count; ++x ) { const int enc = size->encodings[x].encoding; if ( scripts_for_xlfd_encoding[enc][script] ) { encoding = &size->encodings[x]; break; } } } } } if ( ! encoding ) { FM_DEBUG( " foundry doesn't support the script we want" ); continue; } #endif // Q_WS_X11 unsigned int this_score = 0x0000; #ifdef Q_WS_X11 if ( encoding->encoding != -1 ) { this_score += 1; if ( encoding->encoding != QFontPrivate::defaultEncodingID ) this_score += 10; } if (pitch != '*') { if ( !( pitch == 'm' && encoding->pitch == 'c' ) && pitch != encoding->pitch ) this_score += 200; } #else if (pitch != '*') { if ((pitch == 'm' && !family->fixedPitch) || (pitch == 'p' && family->fixedPitch)) this_score += 200; } #endif if ( styleKey != style->key ) this_score += 100; if ( !style->smoothScalable && px != size->pixelSize ) // bitmap scaled this_score += 50; if ( this_score < score ) { FM_DEBUG( " found a match: score %u best score so far %u", this_score, score ); score = this_score; *best_foundry = foundry; *best_style = style; *best_size = size; #ifdef Q_WS_X11 *best_encoding = encoding; #endif // Q_WS_X11 } else { FM_DEBUG( " score %u no better than best %u", this_score, score); } } return score; } /*! \internal */ QFontEngine * QFontDatabase::findFont( QFont::Script script, const QFontPrivate *fp, const QFontDef &request, int force_encoding_id ) { #ifndef Q_WS_X11 Q_UNUSED( force_encoding_id ); #endif #ifdef Q_WS_PM QFontDatabasePrivate *db = QFontDatabasePrivate::instance(); #else if ( !db ) initializeDb(); #endif QFontEngine *fe = 0; if ( fp ) { #ifndef Q_WS_PM if ( fp->rawMode ) { fe = loadEngine( script, fp, request, 0, 0, 0 #ifdef Q_WS_X11 , 0, 0, FALSE #endif ); // if we fail to load the rawmode font, use a 12pixel box engine instead if (! fe) fe = new QFontEngineBox( 12 ); return fe; } #endif // !Q_WS_PM QFontCache::Key key( request, script, #if defined(Q_WS_WIN) || defined(Q_WS_PM) (int)fp->paintdevice #else fp->screen #endif ); fe = QFontCache::instance->findEngine( key ); if ( fe ) return fe; } QString family_name, foundry_name; QtFontStyle::Key styleKey; styleKey.italic = request.italic; styleKey.weight = request.weight; styleKey.stretch = request.stretch; char pitch = request.ignorePitch ? '*' : request.fixedPitch ? 'm' : 'p'; parseFontName( request.family, foundry_name, family_name ); #ifdef Q_WS_PM // the "System VIO" PM font is broken in such way that its real pixel // sizes do not correspond to their nominal point sizes specified in the // font header (i.e. pixelSize is not equal to (pointSize * dpi) / 720). // therefore we use the special table to convert pointSize to pixelSize // in order to let bestFoundry() select the proper font with its nominal // point size corresponding to the requested one. // NOTE: this will produce incorrect results if "System VIO" is NOT // an OS/2 standatd supplied bitmap font. if( !ucstricmp( family_name, "System VIO") ) { // possible sizes of the "System VIO" font ("pixel, point" pairs), // sorted by point size static const short SystemVIO_sz[] = { 12, 20, 16, 30, 8, 40, 13, 50, 15, 60, 24, 70, 8, 80, 10, 90, 12, 100, 14, 110, 16, 120, 18, 130, 16, 140, 12, 150, 20, 160, 21, 170, 29, 180, }; const int SystemVIO_sz_len = sizeof(SystemVIO_sz) / sizeof(SystemVIO_sz[0]); int pt = request.pointSize; pt = QMAX( pt, SystemVIO_sz [1] ); // min limit pt = QMIN( pt, SystemVIO_sz [SystemVIO_sz_len - 1] ); // max limit int i = 1; while ( SystemVIO_sz[i] < pt ) i += 2; if ( SystemVIO_sz[i] > pt ) { int prev = SystemVIO_sz[i-2]; int mid = prev + (SystemVIO_sz[i] - prev + 1) / 2; if ( pt < mid ) i -= 2; } ((QFontDef&)request).pixelSize = SystemVIO_sz[i-1]; ((QFontDef&)request).pointSize = SystemVIO_sz[i]; } #endif #ifdef Q_WS_X11 if (family_name.isEmpty() && script == QFont::Han) { // modify script according to locale static QFont::Script defaultHan = QFont::UnknownScript; if (defaultHan == QFont::UnknownScript) { QCString locale = setlocale(LC_ALL, NULL); if (locale.contains("ko")) defaultHan = QFont::Han_Korean; else if (locale.contains("zh_TW")) defaultHan = QFont::Han_TraditionalChinese; else if (locale.contains("zh")) defaultHan = QFont::Han_SimplifiedChinese; else defaultHan = QFont::Han_Japanese; } script = defaultHan; } #endif FM_DEBUG( "QFontDatabase::findFont\n" " request:\n" " family: %s [%s], script: %d (%s)\n" " weight: %d, italic: %d\n" " stretch: %d\n" " pixelSize: %d\n" " pointSize: %d\n" " pitch: %c", family_name.isEmpty() ? "-- first in script --" : family_name.latin1(), foundry_name.isEmpty() ? "-- any --" : foundry_name.latin1(), script, scriptName( script ).latin1(), request.weight, request.italic, request.stretch, request.pixelSize, request.pointSize, pitch ); #ifdef QT_XFT2 if (family_name.isEmpty() || family_name == "Sans Serif" || family_name == "Serif" || family_name == "Monospace") { fe = loadFontConfigFont(fp, request, script); } if (!fe) #endif { QtFontFamily *best_family = 0; QtFontFoundry *best_foundry = 0; QtFontStyle *best_style = 0; QtFontSize *best_size = 0; #ifdef Q_WS_X11 QtFontEncoding *best_encoding = 0; #endif // Q_WS_X11 unsigned int score = ~0; load( family_name, script ); for ( int x = 0; x < db->count; ++x ) { QtFontFamily *try_family = db->families[x]; if ( !family_name.isEmpty() && ucstricmp( try_family->name, family_name ) != 0 ) continue; if ( family_name.isEmpty() ) load( try_family->name, script ); uint score_adjust = 0; QFont::Script override_script = script; #ifndef Q_WS_PM if ( ! ( try_family->scripts[script] & QtFontFamily::Supported ) && script != QFont::Unicode) { // family not supported in the script we want #ifdef Q_WS_X11 if (script >= QFont::Han_Japanese && script <= QFont::Han_Korean && try_family->scripts[QFont::Han] == QtFontFamily::Supported) { // try with the han script instead, give it a penalty if (override_script == QFont::Han_TraditionalChinese && (try_family->scripts[QFont::Han_SimplifiedChinese] & QtFontFamily::Supported)) { override_script = QFont::Han_SimplifiedChinese; score_adjust = 200; } else if (override_script == QFont::Han_SimplifiedChinese && (try_family->scripts[QFont::Han_TraditionalChinese] & QtFontFamily::Supported)) { override_script = QFont::Han_TraditionalChinese; score_adjust = 200; } else { override_script = QFont::Han; score_adjust = 400; } } else #endif if (family_name.isEmpty()) { continue; } else if (try_family->scripts[QFont::UnknownScript] & QtFontFamily::Supported) { // try with the unknown script (for a symbol font) override_script = QFont::UnknownScript; } else if (try_family->scripts[QFont::Unicode] & QtFontFamily::Supported) { // try with the unicode script instead override_script = QFont::Unicode; } else { // family not supported by unicode/unknown scripts continue; } } #endif // !Q_WS_PM QtFontFoundry *try_foundry = 0; QtFontStyle *try_style = 0; QtFontSize *try_size = 0; #ifdef Q_WS_X11 QtFontEncoding *try_encoding = 0; #endif // Q_WS_X11 // as we know the script is supported, we can be sure // to find a matching font here. unsigned int newscore = bestFoundry( override_script, score, request.styleStrategy, try_family, foundry_name, styleKey, request.pixelSize, pitch, &try_foundry, &try_style, &try_size #if defined(Q_WS_X11) , &try_encoding, force_encoding_id #elif defined(Q_WS_PM) , request.pointSize #endif ); if ( try_foundry == 0 ) { // the specific foundry was not found, so look for // any foundry matching our requirements newscore = bestFoundry( override_script, score, request.styleStrategy, try_family, QString::null, styleKey, request.pixelSize, pitch, &try_foundry, &try_style, &try_size #if defined(Q_WS_X11) , &try_encoding, force_encoding_id #elif defined(Q_WS_PM) , request.pointSize #endif ); } newscore += score_adjust; if ( newscore < score ) { score = newscore; best_family = try_family; best_foundry = try_foundry; best_style = try_style; best_size = try_size; #ifdef Q_WS_X11 best_encoding = try_encoding; #endif // Q_WS_X11 } if ( newscore < 10 ) // xlfd instead of xft... just accept it break; } if ( best_family != 0 && best_foundry != 0 && best_style != 0 #ifdef Q_WS_X11 && best_size != 0 && best_encoding != 0 #endif ) { FM_DEBUG( " BEST:\n" " family: %s [%s]\n" " weight: %d, italic: %d, oblique: %d\n" " stretch: %d\n" " pixelSize: %d\n" " pitch: %c\n" " encoding: %d\n", best_family->name.latin1(), best_foundry->name.isEmpty() ? "-- none --" : best_foundry->name.latin1(), best_style->key.weight, best_style->key.italic, best_style->key.oblique, best_style->key.stretch, best_size ? best_size->pixelSize : 0xffff, #ifdef Q_WS_X11 best_encoding->pitch, best_encoding->encoding #else 'p', 0 #endif ); fe = loadEngine( script, fp, request, best_family, best_foundry, best_style #if defined(Q_WS_PM) , best_size #elif defined(Q_WS_X11) , best_size, best_encoding, ( force_encoding_id >= 0 ) #endif ); } if (fe) { fe->fontDef.family = best_family->name; if ( ! best_foundry->name.isEmpty() ) { fe->fontDef.family += QString::fromLatin1( " [" ); fe->fontDef.family += best_foundry->name; fe->fontDef.family += QString::fromLatin1( "]" ); } #ifdef Q_WS_PM // On OS/2, fontDef.pixelSize and fontDef.pointSize are filled // by QFontEnginePM constructor #else if ( best_style->smoothScalable ) fe->fontDef.pixelSize = request.pixelSize; else if ( best_style->bitmapScalable && ( request.styleStrategy & QFont::PreferMatch ) ) fe->fontDef.pixelSize = request.pixelSize; else fe->fontDef.pixelSize = best_size->pixelSize; if ( fp ) { #if defined(Q_WS_X11) fe->fontDef.pointSize = qRound(10. * qt_pointSize(fe->fontDef.pixelSize, fp->paintdevice, fp->screen)); #elif defined(Q_WS_WIN) fe->fontDef.pointSize = int( double( fe->fontDef.pixelSize ) * 720.0 / GetDeviceCaps(shared_dc,LOGPIXELSY) ); #else fe->fontDef.pointSize = int( double( fe->fontDef.pixelSize ) * 720.0 / 96.0 ); #endif } else { fe->fontDef.pointSize = request.pointSize; } #endif fe->fontDef.styleHint = request.styleHint; fe->fontDef.styleStrategy = request.styleStrategy; fe->fontDef.weight = best_style->key.weight; fe->fontDef.italic = best_style->key.italic || best_style->key.oblique; fe->fontDef.fixedPitch = best_family->fixedPitch; fe->fontDef.stretch = best_style->key.stretch; fe->fontDef.ignorePitch = FALSE; } } if ( fe ) { #ifdef Q_WS_PM ///@@TODO (dmik): should do something here? #else if ( script != QFont::Unicode && !canRender( fe, script ) ) { FM_DEBUG( " WARN: font loaded cannot render sample 0x%04x", sampleCharacter(script).unicode() ); delete fe; if ( ! request.family.isEmpty() ) return 0; FM_DEBUG( "returning box engine" ); fe = new QFontEngineBox( request.pixelSize ); if ( fp #ifdef Q_WS_WIN && !fp->paintdevice #endif ) { QFontCache::Key key( request, script, fp->screen ); QFontCache::instance->insertEngine( key, fe ); } return fe; } #endif // !Q_WS_PM if ( fp ) { QFontCache::Key key( request, script, #if defined(Q_WS_WIN) || defined(Q_WS_PM) (int)fp->paintdevice #else fp->screen #endif ); QFontCache::instance->insertEngine( key, fe ); #ifndef Q_WS_PM for ( int i = 0; i < QFont::NScripts; ++i ) { if ( i == script ) continue; if (!canRender(fe, (QFont::Script) i)) continue; key.script = i; QFontCache::instance->insertEngine( key, fe ); } #endif // !Q_WS_PM } } else { if ( request.family.isEmpty() ) { #ifdef Q_WS_PM //@@TODO (dmik): what to return in such case? qFatal( "QFontDatabase::findFont: request.family is empty and nothing is found, should it ever happen?" ); #else FM_DEBUG( "returning box engine" ); fe = new QFontEngineBox( request.pixelSize ); if ( fp ) { QFontCache::Key key( request, script, #if defined(Q_WS_WIN) || defined(Q_WS_PM) (int)fp->paintdevice #else fp->screen #endif ); QFontCache::instance->insertEngine( key, fe ); } #endif // Q_WS_PM } } return fe; } #endif // Q_WS_X11 || Q_WS_WIN || Q_WS_PM static QString styleString( int weight, bool italic, bool oblique ) { QString result; if ( weight >= QFont::Black ) result = "Black"; else if ( weight >= QFont::Bold ) result = "Bold"; else if ( weight >= QFont::DemiBold ) result = "Demi Bold"; else if ( weight < QFont::Normal ) result = "Light"; if ( italic ) result += " Italic"; else if ( oblique ) result += " Oblique"; if ( result.isEmpty() ) result = "Normal"; return result.simplifyWhiteSpace(); } /*! Returns a string that describes the style of the font \a f. For example, "Bold Italic", "Bold", "Italic" or "Normal". An empty string may be returned. */ QString QFontDatabase::styleString( const QFont &f ) { // ### fix oblique here return ::styleString( f.weight(), f.italic(), FALSE ); } /*! \class QFontDatabase qfontdatabase.h \brief The QFontDatabase class provides information about the fonts available in the underlying window system. \ingroup environment \ingroup graphics The most common uses of this class are to query the database for the list of font families() and for the pointSizes() and styles() that are available for each family. An alternative to pointSizes() is smoothSizes() which returns the sizes at which a given family and style will look attractive. If the font family is available from two or more foundries the foundry name is included in the family name, e.g. "Helvetica [Adobe]" and "Helvetica [Cronyx]". When you specify a family you can either use the old hyphenated Qt 2.x "foundry-family" format, e.g. "Cronyx-Helvetica", or the new bracketed Qt 3.x "family [foundry]" format e.g. "Helvetica [Cronyx]". If the family has a foundry it is always returned, e.g. by families(), using the bracketed format. The font() function returns a QFont given a family, style and point size. A family and style combination can be checked to see if it is italic() or bold(), and to retrieve its weight(). Similarly we can call isBitmapScalable(), isSmoothlyScalable(), isScalable() and isFixedPitch(). A text version of a style is given by styleString(). The QFontDatabase class also supports some static functions, for example, standardSizes(). You can retrieve the Unicode 3.0 description of a \link QFont::Script script\endlink using scriptName(), and a sample of characters in a script with scriptSample(). Example: \code #include #include #include int main( int argc, char **argv ) { QApplication app( argc, argv ); QFontDatabase fdb; QStringList families = fdb.families(); for ( QStringList::Iterator f = families.begin(); f != families.end(); ++f ) { QString family = *f; qDebug( family ); QStringList styles = fdb.styles( family ); for ( QStringList::Iterator s = styles.begin(); s != styles.end(); ++s ) { QString style = *s; QString dstyle = "\t" + style + " ("; QValueList smoothies = fdb.smoothSizes( family, style ); for ( QValueList::Iterator points = smoothies.begin(); points != smoothies.end(); ++points ) { dstyle += QString::number( *points ) + " "; } dstyle = dstyle.left( dstyle.length() - 1 ) + ")"; qDebug( dstyle ); } } return 0; } \endcode This example gets the list of font families, then the list of styles for each family and the point sizes that are available for each family/style combination. */ /*! \obsolete \fn inline QStringList QFontDatabase::families( bool ) const */ /*! \obsolete \fn inline QStringList QFontDatabase::styles( const QString &family, const QString & ) const */ /*! \obsolete \fn inline QValueList QFontDatabase::pointSizes( const QString &family, const QString &style , const QString & ) */ /*! \obsolete \fn inline QValueList QFontDatabase::smoothSizes( const QString &family, const QString &style, const QString & ) */ /*! \obsolete \fn inline QFont QFontDatabase::font( const QString &familyName, const QString &style, int pointSize, const QString &) */ /*! \obsolete \fn inline bool QFontDatabase::isBitmapScalable( const QString &family, const QString &style, const QString & ) const */ /*! \obsolete \fn inline bool QFontDatabase::isSmoothlyScalable( const QString &family, const QString &style, const QString & ) const */ /*! \obsolete \fn inline bool QFontDatabase::isScalable( const QString &family, const QString &style, const QString & ) const */ /*! \obsolete \fn inline bool QFontDatabase::isFixedPitch( const QString &family, const QString &style, const QString & ) const */ /*! \obsolete \fn inline bool QFontDatabase::italic( const QString &family, const QString &style, const QString & ) const */ /*! \obsolete \fn inline bool QFontDatabase::bold( const QString &family, const QString &style, const QString & ) const */ /*! \obsolete \fn inline int QFontDatabase::weight( const QString &family, const QString &style, const QString & ) const */ /*! Creates a font database object. */ QFontDatabase::QFontDatabase() { #ifdef Q_WS_PM d = QFontDatabasePrivate::instance(); #else createDatabase(); d = db; #endif } /*! Returns a sorted list of the names of the available font families. If a family exists in several foundries, the returned name for that font is in the form "family [foundry]". Examples: "Times [Adobe]", "Times [Cronyx]", "Palatino". */ QStringList QFontDatabase::families() const { load(); QStringList flist; for ( int i = 0; i < d->count; i++ ) { QtFontFamily *f = d->families[i]; if ( f->count == 0 ) continue; if ( f->count == 1 ) { flist.append( f->name ); } else { for ( int j = 0; j < f->count; j++ ) { QString str = f->name; QString foundry = f->foundries[j]->name; if ( !foundry.isEmpty() ) { str += " ["; str += foundry; str += "]"; } flist.append( str ); } } } return flist; } /*! \overload Returns a sorted list of the available font families which support the Unicode script \a script. If a family exists in several foundries, the returned name for that font is in the form "family [foundry]". Examples: "Times [Adobe]", "Times [Cronyx]", "Palatino". */ QStringList QFontDatabase::families( QFont::Script script ) const { load(); QStringList flist; for ( int i = 0; i < d->count; i++ ) { QtFontFamily *f = d->families[i]; if ( f->count == 0 ) continue; if (!(f->scripts[script] & QtFontFamily::Supported)) continue; if ( f->count == 1 ) { flist.append( f->name ); } else { for ( int j = 0; j < f->count; j++ ) { QString str = f->name; QString foundry = f->foundries[j]->name; if ( !foundry.isEmpty() ) { str += " ["; str += foundry; str += "]"; } flist.append( str ); } } } return flist; } /*! Returns a list of the styles available for the font family \a family. Some example styles: "Light", "Light Italic", "Bold", "Oblique", "Demi". The list may be empty. */ QStringList QFontDatabase::styles( const QString &family ) const { QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QStringList l; QtFontFamily *f = d->family( familyName ); if ( !f ) return l; QtFontFoundry allStyles( foundryName ); for ( int j = 0; j < f->count; j++ ) { QtFontFoundry *foundry = f->foundries[j]; if ( foundryName.isEmpty() || ucstricmp( foundry->name, foundryName ) == 0 ) { for ( int k = 0; k < foundry->count; k++ ) { QtFontStyle::Key ke( foundry->styles[k]->key ); ke.stretch = 0; allStyles.style( ke, TRUE ); } } } for ( int i = 0; i < allStyles.count; i++ ) l.append( ::styleString( allStyles.styles[i]->key.weight, allStyles.styles[i]->key.italic, allStyles.styles[i]->key.oblique ) ); return l; } /*! Returns TRUE if the font that has family \a family and style \a style is fixed pitch; otherwise returns FALSE. */ bool QFontDatabase::isFixedPitch(const QString &family, const QString &style) const { Q_UNUSED(style); QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QtFontFamily *f = d->family( familyName ); #if defined(Q_OS_MAC) && !defined(QWS) if (f) { if (!f->fixedPitchComputed) { QFontMetrics fm(familyName); f->fixedPitch = fm.width('i') == fm.width('m'); f->fixedPitchComputed = TRUE; } } #endif return ( f && f->fixedPitch ); } /*! Returns TRUE if the font that has family \a family and style \a style is a scalable bitmap font; otherwise returns FALSE. Scaling a bitmap font usually produces an unattractive hardly readable result, because the pixels of the font are scaled. If you need to scale a bitmap font it is better to scale it to one of the fixed sizes returned by smoothSizes(). \sa isScalable(), isSmoothlyScalable() */ bool QFontDatabase::isBitmapScalable( const QString &family, const QString &style) const { bool bitmapScalable = FALSE; QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QtFontStyle::Key styleKey( style ); QtFontFamily *f = d->family( familyName ); if ( !f ) return bitmapScalable; for ( int j = 0; j < f->count; j++ ) { QtFontFoundry *foundry = f->foundries[j]; if ( foundryName.isEmpty() || ucstricmp( foundry->name, foundryName ) == 0 ) { for ( int k = 0; k < foundry->count; k++ ) if ( foundry->styles[k]->key == styleKey && foundry->styles[k]->bitmapScalable && !foundry->styles[k]->smoothScalable ) { bitmapScalable = TRUE; goto end; } } } end: return bitmapScalable; } /*! Returns TRUE if the font that has family \a family and style \a style is smoothly scalable; otherwise returns FALSE. If this function returns TRUE, it's safe to scale this font to any size, and the result will always look attractive. \sa isScalable(), isBitmapScalable() */ bool QFontDatabase::isSmoothlyScalable( const QString &family, const QString &style) const { bool smoothScalable = FALSE; QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QtFontStyle::Key styleKey( style ); QtFontFamily *f = d->family( familyName ); if ( !f ) return smoothScalable; for ( int j = 0; j < f->count; j++ ) { QtFontFoundry *foundry = f->foundries[j]; if ( foundryName.isEmpty() || ucstricmp( foundry->name, foundryName ) == 0 ) { for ( int k = 0; k < foundry->count; k++ ) if ( foundry->styles[k]->key == styleKey && foundry->styles[k]->smoothScalable ) { smoothScalable = TRUE; goto end; } } } end: return smoothScalable; } /*! Returns TRUE if the font that has family \a family and style \a style is scalable; otherwise returns FALSE. \sa isBitmapScalable(), isSmoothlyScalable() */ bool QFontDatabase::isScalable( const QString &family, const QString &style) const { if ( isSmoothlyScalable( family, style) ) return TRUE; return isBitmapScalable( family, style); } /*! Returns a list of the point sizes available for the font that has family \a family and style \a style. The list may be empty. \sa smoothSizes(), standardSizes() */ QValueList QFontDatabase::pointSizes( const QString &family, const QString &style) { #if defined(Q_WS_WIN) || defined(Q_WS_MAC) // windows and macosx are always smoothly scalable Q_UNUSED( family ); Q_UNUSED( style ); return standardSizes(); #else bool smoothScalable = FALSE; QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QtFontStyle::Key styleKey( style ); QValueList sizes; QtFontFamily *fam = d->family( familyName ); if ( !fam ) return sizes; for ( int j = 0; j < fam->count; j++ ) { QtFontFoundry *foundry = fam->foundries[j]; if ( foundryName.isEmpty() || ucstricmp( foundry->name, foundryName ) == 0 ) { QtFontStyle *style = foundry->style( styleKey ); if ( !style ) continue; if ( style->smoothScalable ) { smoothScalable = TRUE; goto end; } for ( int l = 0; l < style->count; l++ ) { const QtFontSize *size = style->pixelSizes + l; if (size->pixelSize != 0 && size->pixelSize != USHRT_MAX) { #if defined(Q_WS_X11) const uint pointSize = qRound(qt_pointSize(size->pixelSize, 0, -1)); #elif defined(Q_WS_PM) //@@TODO (dmik): some bitmap fonts (i.e. System VIO) have point sizes // that do not really correlate with their actual pixel sizes (i.e. // their pointsize != pixelsizde * DPI / 72), What to return in that case? const uint pointSize = size->pointSize / 10; #else const uint pointSize = size->pixelSize; // embedded uses 72dpi #endif if (! sizes.contains(pointSize)) sizes.append(pointSize); } } } } end: if ( smoothScalable ) return standardSizes(); qHeapSort( sizes ); return sizes; #endif } /*! Returns a QFont object that has family \a family, style \a style and point size \a pointSize. If no matching font could be created, a QFont object that uses the application's default font is returned. */ QFont QFontDatabase::font( const QString &family, const QString &style, int pointSize) { QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QtFontFoundry allStyles( foundryName ); QtFontFamily *f = d->family( familyName ); if ( !f ) return QApplication::font(); for ( int j = 0; j < f->count; j++ ) { QtFontFoundry *foundry = f->foundries[j]; if ( foundryName.isEmpty() || ucstricmp( foundry->name, foundryName ) == 0 ) { for ( int k = 0; k < foundry->count; k++ ) allStyles.style( foundry->styles[k]->key, TRUE ); } } QtFontStyle::Key styleKey( style ); QtFontStyle *s = allStyles.style( styleKey ); // ### perhaps do a bit of matching to find the most compatible font? if ( !s && allStyles.count ) s = allStyles.styles[0]; if ( !s ) // no styles found? return QApplication::font(); return QFont( family, pointSize, s->key.weight, s->key.italic ? TRUE : s->key.oblique ? TRUE : FALSE ); } /*! Returns the point sizes of a font that has family \a family and style \a style that will look attractive. The list may be empty. For non-scalable fonts and bitmap scalable fonts, this function is equivalent to pointSizes(). \sa pointSizes(), standardSizes() */ QValueList QFontDatabase::smoothSizes( const QString &family, const QString &style) { #ifdef Q_WS_WIN Q_UNUSED( family ); Q_UNUSED( style ); return QFontDatabase::standardSizes(); #else bool smoothScalable = FALSE; QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QtFontStyle::Key styleKey( style ); QValueList sizes; QtFontFamily *fam = d->family( familyName ); if ( !fam ) return sizes; for ( int j = 0; j < fam->count; j++ ) { QtFontFoundry *foundry = fam->foundries[j]; if ( foundryName.isEmpty() || ucstricmp( foundry->name, foundryName ) == 0 ) { QtFontStyle *style = foundry->style( styleKey ); if ( !style ) continue; if ( style->smoothScalable ) { smoothScalable = TRUE; goto end; } for ( int l = 0; l < style->count; l++ ) { const QtFontSize *size = style->pixelSizes + l; if ( size->pixelSize != 0 && size->pixelSize != USHRT_MAX ) { #if defined(Q_WS_X11) const uint pointSize = qRound(qt_pointSize(size->pixelSize, 0, -1)); #elif defined(Q_WS_PM) //@@TODO (dmik): some bitmap fonts (i.e. System VIO) have point sizes // that do not really correlate with their actual pixel sizes (i.e. // their pointsize != pixelsizde * DPI / 72), What to return in that case? const uint pointSize = size->pointSize / 10; #else const uint pointSize = size->pixelSize; // embedded uses 72dpi #endif if (! sizes.contains(pointSize)) sizes.append( pointSize ); } } } } end: if ( smoothScalable ) return QFontDatabase::standardSizes(); qHeapSort( sizes ); return sizes; #endif } /*! Returns a list of standard font sizes. \sa smoothSizes(), pointSizes() */ QValueList QFontDatabase::standardSizes() { QValueList ret; static const unsigned short standard[] = { 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 26, 28, 36, 48, 72, 0 }; const unsigned short *sizes = standard; while ( *sizes ) ret << *sizes++; return ret; } /*! Returns TRUE if the font that has family \a family and style \a style is italic; otherwise returns FALSE. \sa weight(), bold() */ bool QFontDatabase::italic( const QString &family, const QString &style) const { QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QtFontFoundry allStyles( foundryName ); QtFontFamily *f = d->family( familyName ); if ( !f ) return FALSE; for ( int j = 0; j < f->count; j++ ) { QtFontFoundry *foundry = f->foundries[j]; if ( foundryName.isEmpty() || ucstricmp( foundry->name, foundryName ) == 0 ) { for ( int k = 0; k < foundry->count; k++ ) allStyles.style( foundry->styles[k]->key, TRUE ); } } QtFontStyle::Key styleKey( style ); QtFontStyle *s = allStyles.style( styleKey ); return s && s->key.italic; } /*! Returns TRUE if the font that has family \a family and style \a style is bold; otherwise returns FALSE. \sa italic(), weight() */ bool QFontDatabase::bold( const QString &family, const QString &style) const { QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QtFontFoundry allStyles( foundryName ); QtFontFamily *f = d->family( familyName ); if ( !f ) return FALSE; for ( int j = 0; j < f->count; j++ ) { QtFontFoundry *foundry = f->foundries[j]; if ( foundryName.isEmpty() || ucstricmp( foundry->name, foundryName ) == 0 ) { for ( int k = 0; k < foundry->count; k++ ) allStyles.style( foundry->styles[k]->key, TRUE ); } } QtFontStyle::Key styleKey( style ); QtFontStyle *s = allStyles.style( styleKey ); return s && s->key.weight >= QFont::Bold; } /*! Returns the weight of the font that has family \a family and style \a style. If there is no such family and style combination, returns -1. \sa italic(), bold() */ int QFontDatabase::weight( const QString &family, const QString &style) const { QString familyName, foundryName; parseFontName( family, foundryName, familyName ); load( familyName ); QtFontFoundry allStyles( foundryName ); QtFontFamily *f = d->family( familyName ); if ( !f ) return -1; for ( int j = 0; j < f->count; j++ ) { QtFontFoundry *foundry = f->foundries[j]; if ( foundryName.isEmpty() || ucstricmp( foundry->name, foundryName ) == 0 ) { for ( int k = 0; k < foundry->count; k++ ) allStyles.style( foundry->styles[k]->key, TRUE ); } } QtFontStyle::Key styleKey( style ); QtFontStyle *s = allStyles.style( styleKey ); return s ? s->key.weight : -1; } /*! Returns a string that gives a default description of the \a script (e.g. for displaying to the user in a dialog). The name matches the name of the script as defined by the Unicode 3.0 standard. \sa QFont::Script */ QString QFontDatabase::scriptName(QFont::Script script) { const char *name = 0; switch (script) { case QFont::Latin: name = QT_TRANSLATE_NOOP("QFont", "Latin"); break; case QFont::Greek: name = QT_TRANSLATE_NOOP("QFont", "Greek" ); break; case QFont::Cyrillic: name = QT_TRANSLATE_NOOP("QFont", "Cyrillic" ); break; case QFont::Armenian: name = QT_TRANSLATE_NOOP("QFont", "Armenian" ); break; case QFont::Georgian: name = QT_TRANSLATE_NOOP("QFont", "Georgian" ); break; case QFont::Runic: name = QT_TRANSLATE_NOOP("QFont", "Runic" ); break; case QFont::Ogham: name = QT_TRANSLATE_NOOP("QFont", "Ogham" ); break; case QFont::SpacingModifiers: name = QT_TRANSLATE_NOOP("QFont", "SpacingModifiers" ); break; case QFont::CombiningMarks: name = QT_TRANSLATE_NOOP("QFont", "CombiningMarks" ); break; case QFont::Hebrew: name = QT_TRANSLATE_NOOP("QFont", "Hebrew" ); break; case QFont::Arabic: name = QT_TRANSLATE_NOOP("QFont", "Arabic" ); break; case QFont::Syriac: name = QT_TRANSLATE_NOOP("QFont", "Syriac" ); break; case QFont::Thaana: name = QT_TRANSLATE_NOOP("QFont", "Thaana" ); break; case QFont::Devanagari: name = QT_TRANSLATE_NOOP("QFont", "Devanagari" ); break; case QFont::Bengali: name = QT_TRANSLATE_NOOP("QFont", "Bengali" ); break; case QFont::Gurmukhi: name = QT_TRANSLATE_NOOP("QFont", "Gurmukhi" ); break; case QFont::Gujarati: name = QT_TRANSLATE_NOOP("QFont", "Gujarati" ); break; case QFont::Oriya: name = QT_TRANSLATE_NOOP("QFont", "Oriya" ); break; case QFont::Tamil: name = QT_TRANSLATE_NOOP("QFont", "Tamil" ); break; case QFont::Telugu: name = QT_TRANSLATE_NOOP("QFont", "Telugu" ); break; case QFont::Kannada: name = QT_TRANSLATE_NOOP("QFont", "Kannada" ); break; case QFont::Malayalam: name = QT_TRANSLATE_NOOP("QFont", "Malayalam" ); break; case QFont::Sinhala: name = QT_TRANSLATE_NOOP("QFont", "Sinhala" ); break; case QFont::Thai: name = QT_TRANSLATE_NOOP("QFont", "Thai" ); break; case QFont::Lao: name = QT_TRANSLATE_NOOP("QFont", "Lao" ); break; case QFont::Tibetan: name = QT_TRANSLATE_NOOP("QFont", "Tibetan" ); break; case QFont::Myanmar: name = QT_TRANSLATE_NOOP("QFont", "Myanmar" ); break; case QFont::Khmer: name = QT_TRANSLATE_NOOP("QFont", "Khmer" ); break; case QFont::Han: name = QT_TRANSLATE_NOOP("QFont", "Han" ); break; case QFont::Hiragana: name = QT_TRANSLATE_NOOP("QFont", "Hiragana" ); break; case QFont::Katakana: name = QT_TRANSLATE_NOOP("QFont", "Katakana" ); break; case QFont::Hangul: name = QT_TRANSLATE_NOOP("QFont", "Hangul" ); break; case QFont::Bopomofo: name = QT_TRANSLATE_NOOP("QFont", "Bopomofo" ); break; case QFont::Yi: name = QT_TRANSLATE_NOOP("QFont", "Yi" ); break; case QFont::Ethiopic: name = QT_TRANSLATE_NOOP("QFont", "Ethiopic" ); break; case QFont::Cherokee: name = QT_TRANSLATE_NOOP("QFont", "Cherokee" ); break; case QFont::CanadianAboriginal: name = QT_TRANSLATE_NOOP("QFont", "Canadian Aboriginal" ); break; case QFont::Mongolian: name = QT_TRANSLATE_NOOP("QFont", "Mongolian" ); break; case QFont::CurrencySymbols: name = QT_TRANSLATE_NOOP("QFont", "Currency Symbols" ); break; case QFont::LetterlikeSymbols: name = QT_TRANSLATE_NOOP("QFont", "Letterlike Symbols" ); break; case QFont::NumberForms: name = QT_TRANSLATE_NOOP("QFont", "Number Forms" ); break; case QFont::MathematicalOperators: name = QT_TRANSLATE_NOOP("QFont", "Mathematical Operators" ); break; case QFont::TechnicalSymbols: name = QT_TRANSLATE_NOOP("QFont", "Technical Symbols" ); break; case QFont::GeometricSymbols: name = QT_TRANSLATE_NOOP("QFont", "Geometric Symbols" ); break; case QFont::MiscellaneousSymbols: name = QT_TRANSLATE_NOOP("QFont", "Miscellaneous Symbols" ); break; case QFont::EnclosedAndSquare: name = QT_TRANSLATE_NOOP("QFont", "Enclosed and Square" ); break; case QFont::Braille: name = QT_TRANSLATE_NOOP("QFont", "Braille" ); break; case QFont::Unicode: name = QT_TRANSLATE_NOOP("QFont", "Unicode" ); break; case QFont::Tagalog: name = QT_TRANSLATE_NOOP( "QFont", "Tagalog" ); break; case QFont::Hanunoo: name = QT_TRANSLATE_NOOP( "QFont", "Hanunoo" ); break; case QFont::Buhid: name = QT_TRANSLATE_NOOP( "QFont", "Buhid" ); break; case QFont::Tagbanwa: name = QT_TRANSLATE_NOOP( "QFont", "Tagbanwa" ); break; case QFont::KatakanaHalfWidth: name = QT_TRANSLATE_NOOP( "QFont", "Katakana Half-Width Forms" ); break; case QFont::Han_Japanese: name = QT_TRANSLATE_NOOP( "QFont", "Han (Japanese)" ); break; case QFont::Han_SimplifiedChinese: name = QT_TRANSLATE_NOOP( "QFont", "Han (Simplified Chinese)" ); break; case QFont::Han_TraditionalChinese: name = QT_TRANSLATE_NOOP( "QFont", "Han (Traditional Chinese)" ); break; case QFont::Han_Korean: name = QT_TRANSLATE_NOOP( "QFont", "Han (Korean)" ); break; default: name = QT_TRANSLATE_NOOP( "QFont", "Unknown Script" ); break; } return qApp ? qApp->translate("QFont", name) : QString::fromLatin1(name); } /*! Returns a string with sample characters from \a script. \sa QFont::Script */ QString QFontDatabase::scriptSample(QFont::Script script) { QString sample = "AaBb"; switch (script) { case QFont::Latin: // This is cheating... we only show latin-1 characters so that we don't // end up loading lots of fonts - at least on X11... sample += QChar(0x00C3); sample += QChar(0x00E1); sample += "Zz"; break; case QFont::Greek: sample += QChar(0x0393); sample += QChar(0x03B1); sample += QChar(0x03A9); sample += QChar(0x03C9); break; case QFont::Cyrillic: sample += QChar(0x0414); sample += QChar(0x0434); sample += QChar(0x0436); sample += QChar(0x0402); break; case QFont::Armenian: sample += QChar(0x053f); sample += QChar(0x054f); sample += QChar(0x056f); sample += QChar(0x057f); break; case QFont::Georgian: sample += QChar(0x10a0); sample += QChar(0x10b0); sample += QChar(0x10c0); sample += QChar(0x10d0); break; case QFont::Runic: sample += QChar(0x16a0); sample += QChar(0x16b0); sample += QChar(0x16c0); sample += QChar(0x16d0); break; case QFont::Ogham: sample += QChar(0x1681); sample += QChar(0x1687); sample += QChar(0x1693); sample += QChar(0x168d); break; case QFont::Hebrew: sample += QChar(0x05D0); sample += QChar(0x05D1); sample += QChar(0x05D2); sample += QChar(0x05D3); break; case QFont::Arabic: sample += QChar(0x0628); sample += QChar(0x0629); sample += QChar(0x062A); sample += QChar(0x063A); break; case QFont::Syriac: sample += QChar(0x0715); sample += QChar(0x0725); sample += QChar(0x0716); sample += QChar(0x0726); break; case QFont::Thaana: sample += QChar(0x0784); sample += QChar(0x0794); sample += QChar(0x078c); sample += QChar(0x078d); break; case QFont::Devanagari: sample += QChar(0x0905); sample += QChar(0x0915); sample += QChar(0x0925); sample += QChar(0x0935); break; case QFont::Bengali: sample += QChar(0x0986); sample += QChar(0x0996); sample += QChar(0x09a6); sample += QChar(0x09b6); break; case QFont::Gurmukhi: sample += QChar(0x0a05); sample += QChar(0x0a15); sample += QChar(0x0a25); sample += QChar(0x0a35); break; case QFont::Gujarati: sample += QChar(0x0a85); sample += QChar(0x0a95); sample += QChar(0x0aa5); sample += QChar(0x0ab5); break; case QFont::Oriya: sample += QChar(0x0b06); sample += QChar(0x0b16); sample += QChar(0x0b2b); sample += QChar(0x0b36); break; case QFont::Tamil: sample += QChar(0x0b89); sample += QChar(0x0b99); sample += QChar(0x0ba9); sample += QChar(0x0bb9); break; case QFont::Telugu: sample += QChar(0x0c05); sample += QChar(0x0c15); sample += QChar(0x0c25); sample += QChar(0x0c35); break; case QFont::Kannada: sample += QChar(0x0c85); sample += QChar(0x0c95); sample += QChar(0x0ca5); sample += QChar(0x0cb5); break; case QFont::Malayalam: sample += QChar(0x0d05); sample += QChar(0x0d15); sample += QChar(0x0d25); sample += QChar(0x0d35); break; case QFont::Sinhala: sample += QChar(0x0d90); sample += QChar(0x0da0); sample += QChar(0x0db0); sample += QChar(0x0dc0); break; case QFont::Thai: sample += QChar(0x0e02); sample += QChar(0x0e12); sample += QChar(0x0e22); sample += QChar(0x0e32); break; case QFont::Lao: sample += QChar(0x0e8d); sample += QChar(0x0e9d); sample += QChar(0x0ead); sample += QChar(0x0ebd); break; case QFont::Tibetan: sample += QChar(0x0f00); sample += QChar(0x0f01); sample += QChar(0x0f02); sample += QChar(0x0f03); break; case QFont::Myanmar: sample += QChar(0x1000); sample += QChar(0x1001); sample += QChar(0x1002); sample += QChar(0x1003); break; case QFont::Khmer: sample += QChar(0x1780); sample += QChar(0x1790); sample += QChar(0x17b0); sample += QChar(0x17c0); break; case QFont::Han: sample += QChar(0x6f84); sample += QChar(0x820a); sample += QChar(0x61a9); sample += QChar(0x9781); break; case QFont::Hiragana: sample += QChar(0x3050); sample += QChar(0x3060); sample += QChar(0x3070); sample += QChar(0x3080); break; case QFont::Katakana: sample += QChar(0x30b0); sample += QChar(0x30c0); sample += QChar(0x30d0); sample += QChar(0x30e0); break; case QFont::Hangul: sample += QChar(0xac00); sample += QChar(0xac11); sample += QChar(0xac1a); sample += QChar(0xac2f); break; case QFont::Bopomofo: sample += QChar(0x3105); sample += QChar(0x3115); sample += QChar(0x3125); sample += QChar(0x3129); break; case QFont::Yi: sample += QChar(0xa1a8); sample += QChar(0xa1a6); sample += QChar(0xa200); sample += QChar(0xa280); break; case QFont::Ethiopic: sample += QChar(0x1200); sample += QChar(0x1240); sample += QChar(0x1280); sample += QChar(0x12c0); break; case QFont::Cherokee: sample += QChar(0x13a0); sample += QChar(0x13b0); sample += QChar(0x13c0); sample += QChar(0x13d0); break; case QFont::CanadianAboriginal: sample += QChar(0x1410); sample += QChar(0x1500); sample += QChar(0x15f0); sample += QChar(0x1650); break; case QFont::Mongolian: sample += QChar(0x1820); sample += QChar(0x1840); sample += QChar(0x1860); sample += QChar(0x1880); break; case QFont::CurrencySymbols: case QFont::LetterlikeSymbols: case QFont::NumberForms: case QFont::MathematicalOperators: case QFont::TechnicalSymbols: case QFont::GeometricSymbols: case QFont::MiscellaneousSymbols: case QFont::EnclosedAndSquare: case QFont::Braille: break; case QFont::Unicode: sample += QChar(0x0174); sample += QChar(0x0628); sample += QChar(0x0e02); sample += QChar(0x263A); sample += QChar(0x3129); sample += QChar(0x61a9); sample += QChar(0xac2f); break; default: sample += QChar(0xfffd); sample += QChar(0xfffd); sample += QChar(0xfffd); sample += QChar(0xfffd); break; } return sample; } /*! \internal This makes sense of the font family name: 1) if the family name contains a '-' (ie. "Adobe-Courier"), then we split at the '-', and use the string as the foundry, and the string to the right as the family 2) if the family name contains a '[' and a ']', then we take the text between the square brackets as the foundry, and the text before the square brackets as the family (ie. "Arial [Monotype]") */ void QFontDatabase::parseFontName(const QString &name, QString &foundry, QString &family) { if ( name.contains('-') ) { int i = name.find('-'); foundry = name.left( i ); family = name.right( name.length() - i - 1 ); } else if ( name.contains('[') && name.contains(']')) { int i = name.find('['); int li = name.findRev(']'); if (i < li) { foundry = name.mid(i + 1, li - i - 1); if (name[i - 1] == ' ') i--; family = name.left(i); } } else { foundry = QString::null; family = name; } } #endif // QT_NO_FONTDATABASE