qfont.cpp File Reference

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#include "qfont.h"
#include "qdebug.h"
#include "qpaintdevice.h"
#include "qfontdatabase.h"
#include "qfontmetrics.h"
#include "qfontinfo.h"
#include "qpainter.h"
#include "qhash.h"
#include "qdatastream.h"
#include "qguiapplication.h"
#include "qstringlist.h"
#include "qscreen.h"
#include "qthread.h"
#include "qthreadstorage.h"
#include "qfont_p.h"
#include <private/qfontengine_p.h>
#include <private/qpainter_p.h>
#include <private/qtextengine_p.h>
#include <limits.h>
#include <qpa/qplatformscreen.h>
#include <qpa/qplatformintegration.h>
#include <qpa/qplatformfontdatabase.h>
#include <QtGui/private/qguiapplication_p.h>
#include <QtCore/QMutexLocker>
#include <QtCore/QMutex>
#include <array>
#include "moc_qfont.cpp"

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Macros
#define	FC_DEBUG   if (false) qDebug
#define	QFONTCACHE_DECREASE_TRIGGER_LIMIT   256
#define	QT_FONT_ENGINE_FROM_DATA(data, script)   data->engines[script]
#define	QFONTCACHE_MIN_COST   4*1024
#define	QFONT_DEBUG_SKIP_DEFAULT(prop)

Typedefs
typedef QHash< QString, QStringList >	QFontSubst

Functions
Q_GUI_EXPORT int	qt_defaultDpiX ()
Q_GUI_EXPORT int	qt_defaultDpiY ()
Q_GUI_EXPORT int	qt_defaultDpi ()
static int	convertWeights (int weight, bool inverted)
static QStringList	splitIntoFamilies (const QString &family)
Q_GUI_EXPORT int	qt_legacyToOpenTypeWeight (int weight)
Q_GUI_EXPORT int	qt_openTypeToLegacyWeight (int weight)
QRecursiveMutex *	qt_fontdatabase_mutex ()
static quint8	get_font_bits (int version, const QFontPrivate *f)
static quint8	get_extended_font_bits (const QFontPrivate *f)
static void	set_font_bits (int version, quint8 bits, QFontPrivate *f)
static void	set_extended_font_bits (quint8 bits, QFontPrivate *f)
QStringList	qt_fallbacksForFamily (const QString &family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script)
QDataStream &	operator<< (QDataStream &stream, QFont::Tag tag)
QDataStream &	operator>> (QDataStream &stream, QFont::Tag &tag)
QDebug	operator<< (QDebug stream, const QFont &font)
QDebug	operator<< (QDebug debug, QFont::Tag tag)

Variables
bool	qt_is_tty_app
static constexpr auto	fast_timeout = 10s
static constexpr auto	slow_timeout = 5min
static Q_CONSTINIT QBasicAtomicInt	font_cache_id = Q_BASIC_ATOMIC_INITIALIZER(0)

Macro Definition Documentation

FC_DEBUG

#define FC_DEBUG   if (false) qDebug

Definition at line 40 of file qfont.cpp.

Referenced by QFontCache::clear(), QFontCache::insertEngine(), QFontCache::insertEngineData(), QFontCache::timerEvent(), and QFontCache::updateHitCountAndTimeStamp().

QFONT_DEBUG_SKIP_DEFAULT

#define QFONT_DEBUG_SKIP_DEFAULT

(

prop

)

Value:

            if ((font.prop() == defaultFont.prop()) && stream.verbosity() == 1) \
                continue;

QFONTCACHE_DECREASE_TRIGGER_LIMIT

#define QFONTCACHE_DECREASE_TRIGGER_LIMIT   256

Definition at line 46 of file qfont.cpp.

Referenced by QFontCache::insertEngine(), and QFontCache::insertEngineData().

QFONTCACHE_MIN_COST

#define QFONTCACHE_MIN_COST   4*1024

Definition at line 3331 of file qfont.cpp.

QT_FONT_ENGINE_FROM_DATA

#define QT_FONT_ENGINE_FROM_DATA	(		data,
			script )   data->engines[script]

Definition at line 239 of file qfont.cpp.

Referenced by QFontPrivate::engineForScript().

Typedef Documentation

QFontSubst

typedef QHash<QString, QStringList> QFontSubst

Definition at line 1923 of file qfont.cpp.

Function Documentation

convertWeights()

static int convertWeights ( int weight, bool inverted )

static

Definition at line 146 of file qfont.cpp.

References QFont::Black, QFont::Bold, QFont::DemiBold, dist(), QFont::ExtraBold, QFont::ExtraLight, QFont::Light, QFont::Medium, QFont::Normal, qAbs(), and QFont::Thin.

Referenced by qt_legacyToOpenTypeWeight(), and qt_openTypeToLegacyWeight().

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get_extended_font_bits()

static quint8 get_extended_font_bits ( const QFontPrivate * f )

static

Definition at line 2068 of file qfont.cpp.

References Q_ASSERT.

get_font_bits()

static quint8 get_font_bits ( int version, const QFontPrivate * f )

static

Definition at line 2043 of file qfont.cpp.

References Q_ASSERT, and QFont::StyleOblique.

operator<<() [1/3]

QDataStream & operator<<	(	QDataStream &	stream,
		QFont::Tag	tag )

Definition at line 2935 of file qfont.cpp.

operator<<() [2/3]

QDebug operator<<	(	QDebug	debug,
		QFont::Tag	tag )

Definition at line 3829 of file qfont.cpp.

operator<<() [3/3]

QDebug operator<<	(	QDebug	stream,
		const QFont &	font )

Definition at line 3730 of file qfont.cpp.

References QMap< Key, T >::contains(), QFontPrivate::request, tag, QMap< Key, T >::value(), and QFontDef::variableAxisValues.

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operator>>()

QDataStream & operator>> ( QDataStream & stream, QFont::Tag & tag )

related

Definition at line 2941 of file qfont.cpp.

qt_defaultDpi()

Q_GUI_EXPORT int qt_defaultDpi

(

)

Definition at line 140 of file qfont.cpp.

References qt_defaultDpiY().

Referenced by QFontMetrics::QFontMetrics(), QFontMetricsF::QFontMetricsF(), QPdfPrintEnginePrivate::QPdfPrintEnginePrivate(), QTextDocumentLayoutPrivate::blockIndent(), QCoreTextRawFontEngine::cloneWithSize(), QCoreTextFontEngine::cloneWithSize(), QCoreTextFontEngine::create(), QPicturePaintEngine::drawTextItem(), getSize(), QMacPrintEnginePrivate::initialize(), QTextDocumentLayoutPrivate::layoutBlock(), QQuickFontValueType::pixelSize(), QQuickFontValueType::pointSize(), QTextDocumentLayoutPrivate::scaleToDevice(), QTextDocumentLayoutPrivate::scaleToDevice(), and QQuickStyledTextPrivate::setFontSize().

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qt_defaultDpiX()

Q_GUI_EXPORT int qt_defaultDpiX

(

)

Definition at line 110 of file qfont.cpp.

References Qt::AA_Use96Dpi, QCoreApplication::instance(), QScreen::logicalDotsPerInchX, QGuiApplication::primaryScreen, qRound(), qt_is_tty_app, and screen.

Referenced by QFakeDevice::QFakeDevice(), QStyleHelper::dpi(), QAlphaPaintEngine::flushAndInit(), QPicture::metric(), QBlittablePlatformPixmap::metric(), QRasterPlatformPixmap::metric(), QOpenGLWidget::metric(), QTextDocument::print(), and QQuickLayoutStyleInfo::spacing().

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qt_defaultDpiY()

Q_GUI_EXPORT int qt_defaultDpiY

(

)

Definition at line 125 of file qfont.cpp.

References Qt::AA_Use96Dpi, QCoreApplication::instance(), QScreen::logicalDotsPerInchY, QGuiApplication::primaryScreen, qRound(), qt_is_tty_app, and screen.

Referenced by QFakeDevice::QFakeDevice(), QTextEngine::calculateTabWidth(), QAlphaPaintEngine::flushAndInit(), QPicture::metric(), QBlittablePlatformPixmap::metric(), QRasterPlatformPixmap::metric(), QOpenGLWidget::metric(), QFontDatabase::pointSizes(), QTextDocument::print(), qt_defaultDpi(), and QFontDatabase::smoothSizes().

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qt_fallbacksForFamily()

QStringList qt_fallbacksForFamily ( const QString & family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script )

extern

Definition at line 696 of file qfontdatabase.cpp.

References fallbacksForFamily().

Referenced by QFont::defaultFamily(), and QFontEngineMulti::ensureFallbackFamiliesQueried().

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qt_fontdatabase_mutex()

QRecursiveMutex * qt_fontdatabase_mutex ( )

extern

Definition at line 526 of file qfontdatabase.cpp.

Referenced by QFontPrivate::engineForScript().

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qt_legacyToOpenTypeWeight()

Q_GUI_EXPORT int qt_legacyToOpenTypeWeight

(

int

weight

)

Definition at line 195 of file qfont.cpp.

References convertWeights().

Referenced by QFont::fromString().

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qt_openTypeToLegacyWeight()

Q_GUI_EXPORT int qt_openTypeToLegacyWeight

(

int

weight

)

Definition at line 201 of file qfont.cpp.

References convertWeights().

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set_extended_font_bits()

static void set_extended_font_bits ( quint8 bits, QFontPrivate * f )

static

Definition at line 2098 of file qfont.cpp.

References Q_ASSERT.

set_font_bits()

static void set_font_bits ( int version, quint8 bits, QFontPrivate * f )

static

Definition at line 2083 of file qfont.cpp.

References Q_ASSERT, QFont::StyleItalic, QFont::StyleNormal, and QFont::StyleOblique.

splitIntoFamilies()

static QStringList splitIntoFamilies ( const QString & family )

static

Definition at line 175 of file qfont.cpp.

References QList< T >::at(), QString::endsWith(), familyList(), i, QString::isEmpty(), list, QString::mid(), QString::size(), QList< T >::size(), QString::split(), QString::startsWith(), and str.

Referenced by QFont::QFont().

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Variable Documentation

fast_timeout

constexpr auto fast_timeout = 10s

staticconstexpr

Definition at line 3326 of file qfont.cpp.

font_cache_id

Q_CONSTINIT QBasicAtomicInt font_cache_id = Q_BASIC_ATOMIC_INITIALIZER(0)

static

Definition at line 3356 of file qfont.cpp.

qt_is_tty_app

bool qt_is_tty_app

extern

Definition at line 122 of file qguiapplication.cpp.

Referenced by qt_defaultDpiX(), and qt_defaultDpiY().

slow_timeout

constexpr auto slow_timeout = 5min

staticconstexpr

Definition at line 3327 of file qfont.cpp.