diff options
Diffstat (limited to 'src/gui/text/qfont.cpp')
| -rw-r--r-- | src/gui/text/qfont.cpp | 240 |
1 files changed, 148 insertions, 92 deletions
diff --git a/src/gui/text/qfont.cpp b/src/gui/text/qfont.cpp index cf40dd028d..cf64c89f2f 100644 --- a/src/gui/text/qfont.cpp +++ b/src/gui/text/qfont.cpp @@ -62,6 +62,8 @@ #include <limits.h> #include <qpa/qplatformscreen.h> +#include <qpa/qplatformintegration.h> +#include <qpa/qplatformfontdatabase.h> #include <QtGui/private/qguiapplication_p.h> #include <QtCore/QMutexLocker> @@ -545,79 +547,6 @@ QFontEngineData::~QFontEngineData() */ /*! - \fn QString QFont::rawName() const - \deprecated - - Returns the name of the font within the underlying window system. - - On X11, this function will return an empty string. - - Using the return value of this function is usually \e not \e - portable. - - \sa setRawName() -*/ - -/*! - \fn void QFont::setRawName(const QString &name) - \deprecated - - Sets a font by its system specific name. - - A font set with setRawName() is still a full-featured QFont. It can - be queried (for example with italic()) or modified (for example with - setItalic()) and is therefore also suitable for rendering rich text. - - If Qt's internal font database cannot resolve the raw name, the - font becomes a raw font with \a name as its family. - - \sa rawName(), setRawMode(), setFamily() -*/ - -/*! - \fn QString QFont::lastResortFamily() const - - Returns the "last resort" font family name. - - The current implementation tries a wide variety of common fonts, - returning the first one it finds. Is is possible that no family is - found in which case an empty string is returned. - - \sa lastResortFont() -*/ - -/*! - \fn QString QFont::defaultFamily() const - - Returns the family name that corresponds to the current style - hint. - - \sa StyleHint, styleHint(), setStyleHint() -*/ - -/*! - \fn QString QFont::lastResortFont() const - - Returns a "last resort" font name for the font matching algorithm. - This is used if the last resort family is not available. It will - always return a name, if necessary returning something like - "fixed" or "system". - - The current implementation tries a wide variety of common fonts, - returning the first one it finds. The implementation may change - at any time, but this function will always return a string - containing something. - - It is theoretically possible that there really isn't a - lastResortFont() in which case Qt will abort with an error - message. We have not been able to identify a case where this - happens. Please \l{bughowto.html}{report it as a bug} if - it does, preferably with a list of the fonts you have installed. - - \sa lastResortFamily(), rawName() -*/ - -/*! Constructs a font from \a font for use on the paint device \a pd. */ QFont::QFont(const QFont &font, QPaintDevice *pd) @@ -1376,6 +1305,7 @@ QFont::StyleHint QFont::styleHint() const \value PreferOutline prefers outline fonts (as opposed to bitmap fonts). \value ForceOutline forces the use of outline fonts. \value NoAntialias don't antialias the fonts. + \value NoSubpixelAntialias avoid subpixel antialiasing on the fonts if possible. \value PreferAntialias antialias if possible. \value OpenGLCompatible forces the use of OpenGL compatible fonts. @@ -1913,20 +1843,6 @@ void QFont::insertSubstitutions(const QString &familyName, } } -/*! \fn void QFont::initialize() - \internal - - Internal function that initializes the font system. The font cache - and font dict do not alloc the keys. The key is a QString which is - shared between QFontPrivate and QXFontName. -*/ - -/*! \fn void QFont::cleanup() - \internal - - Internal function that cleans up the font system. -*/ - /*! Removes all the substitutions for \a familyName. @@ -2041,6 +1957,42 @@ static void set_extended_font_bits(quint8 bits, QFontPrivate *f) } #endif +/*! + \fn QString QFont::rawName() const + \deprecated + + Returns the name of the font within the underlying window system. + + On X11, this function will return an empty string. + + Using the return value of this function is usually \e not \e + portable. + + \sa setRawName() +*/ +QString QFont::rawName() const +{ + return QLatin1String("unknown"); +} + +/*! + \fn void QFont::setRawName(const QString &name) + \deprecated + + Sets a font by its system specific name. + + A font set with setRawName() is still a full-featured QFont. It can + be queried (for example with italic()) or modified (for example with + setItalic()) and is therefore also suitable for rendering rich text. + + If Qt's internal font database cannot resolve the raw name, the + font becomes a raw font with \a name as its family. + + \sa rawName(), setRawMode(), setFamily() +*/ +void QFont::setRawName(const QString &) +{ +} /*! Returns the font's key, a textual representation of a font. It is @@ -2134,17 +2086,96 @@ bool QFont::fromString(const QString &descrip) return true; } +/*! \fn void QFont::initialize() + \internal + + Internal function that initializes the font system. The font cache + and font dict do not alloc the keys. The key is a QString which is + shared between QFontPrivate and QXFontName. +*/ +void QFont::initialize() +{ +} + +/*! \fn void QFont::cleanup() + \internal + + Internal function that cleans up the font system. +*/ +void QFont::cleanup() +{ + QFontCache::cleanup(); +} + /*! \internal Internal function that dumps font cache statistics. */ void QFont::cacheStatistics() { +} + +/*! + \fn QString QFont::lastResortFamily() const + + Returns the "last resort" font family name. + + The current implementation tries a wide variety of common fonts, + returning the first one it finds. Is is possible that no family is + found in which case an empty string is returned. + + \sa lastResortFont() +*/ +QString QFont::lastResortFamily() const +{ + return QString::fromLatin1("helvetica"); +} +/*! + \fn QString QFont::defaultFamily() const + + Returns the family name that corresponds to the current style + hint. + \sa StyleHint, styleHint(), setStyleHint() +*/ +QString QFont::defaultFamily() const +{ + QPlatformFontDatabase *fontDB = QGuiApplicationPrivate::platformIntegration()->fontDatabase(); + const QStringList fallbacks = fontDB->fallbacksForFamily(QString(), QFont::StyleNormal + , QFont::StyleHint(d->request.styleHint), QChar::Script_Common); + if (!fallbacks.isEmpty()) + return fallbacks.first(); + return QString(); } +/*! + \fn QString QFont::lastResortFont() const + Returns a "last resort" font name for the font matching algorithm. + This is used if the last resort family is not available. It will + always return a name, if necessary returning something like + "fixed" or "system". + + The current implementation tries a wide variety of common fonts, + returning the first one it finds. The implementation may change + at any time, but this function will always return a string + containing something. + + It is theoretically possible that there really isn't a + lastResortFont() in which case Qt will abort with an error + message. We have not been able to identify a case where this + happens. Please \l{bughowto.html}{report it as a bug} if + it does, preferably with a list of the fonts you have installed. + + \sa lastResortFamily(), rawName() +*/ +QString QFont::lastResortFont() const +{ + qFatal("QFont::lastResortFont: Cannot find any reasonable font"); + // Shut compiler up + return QString(); +} /***************************************************************************** QFont stream functions @@ -2165,6 +2196,8 @@ QDataStream &operator<<(QDataStream &s, const QFont &font) s << font.d->request.family.toLatin1(); } else { s << font.d->request.family; + if (s.version() >= QDataStream::Qt_5_4) + s << font.d->request.styleName; } if (s.version() >= QDataStream::Qt_4_0) { @@ -2185,8 +2218,14 @@ QDataStream &operator<<(QDataStream &s, const QFont &font) } s << (quint8) font.d->request.styleHint; - if (s.version() >= QDataStream::Qt_3_1) - s << (quint8) font.d->request.styleStrategy; + if (s.version() >= QDataStream::Qt_3_1) { + // Continue writing 8 bits for versions < 5.4 so that we don't write too much, + // even though we need 16 to store styleStrategy, so there is some data loss. + if (s.version() >= QDataStream::Qt_5_4) + s << (quint16) font.d->request.styleStrategy; + else + s << (quint8) font.d->request.styleStrategy; + } s << (quint8) 0 << (quint8) font.d->request.weight << get_font_bits(s.version(), font.d.data()); @@ -2198,6 +2237,8 @@ QDataStream &operator<<(QDataStream &s, const QFont &font) s << font.d->letterSpacing.value(); s << font.d->wordSpacing.value(); } + if (s.version() >= QDataStream::Qt_5_4) + s << (quint8)font.d->request.hintingPreference; return s; } @@ -2215,7 +2256,8 @@ QDataStream &operator>>(QDataStream &s, QFont &font) font.d = new QFontPrivate; font.resolve_mask = QFont::AllPropertiesResolved; - quint8 styleHint, styleStrategy = QFont::PreferDefault, charSet, weight, bits; + quint8 styleHint, charSet, weight, bits; + quint16 styleStrategy = QFont::PreferDefault; if (s.version() == 1) { QByteArray fam; @@ -2223,6 +2265,8 @@ QDataStream &operator>>(QDataStream &s, QFont &font) font.d->request.family = QString::fromLatin1(fam); } else { s >> font.d->request.family; + if (s.version() >= QDataStream::Qt_5_4) + s >> font.d->request.styleName; } if (s.version() >= QDataStream::Qt_4_0) { @@ -2242,8 +2286,15 @@ QDataStream &operator>>(QDataStream &s, QFont &font) font.d->request.pixelSize = pixelSize; } s >> styleHint; - if (s.version() >= QDataStream::Qt_3_1) - s >> styleStrategy; + if (s.version() >= QDataStream::Qt_3_1) { + if (s.version() >= QDataStream::Qt_5_4) { + s >> styleStrategy; + } else { + quint8 tempStyleStrategy; + s >> tempStyleStrategy; + styleStrategy = tempStyleStrategy; + } + } s >> charSet; s >> weight; @@ -2273,6 +2324,11 @@ QDataStream &operator>>(QDataStream &s, QFont &font) s >> value; font.d->wordSpacing.setValue(value); } + if (s.version() >= QDataStream::Qt_5_4) { + quint8 value; + s >> value; + font.d->request.hintingPreference = QFont::HintingPreference(value); + } return s; } |