QCoreTextFontEngine Class Reference

#include <qfontengine_coretext_p.h>

Inheritance diagram for QCoreTextFontEngine:

Collaboration diagram for QCoreTextFontEngine:

Public Types
enum	FontSmoothing { Disabled , Subpixel , Grayscale }
Public Types inherited from QFontEngine
enum	Type {   Box , Multi , Win , Mac ,   Freetype , QPF1 , QPF2 , Proxy ,   DirectWrite , TestFontEngine = 0x1000 }
enum	GlyphFormat {   Format_None , Format_Render = Format_None , Format_Mono , Format_A8 ,   Format_A32 , Format_ARGB }
enum	ShaperFlag { DesignMetrics = 0x0002 , GlyphIndicesOnly = 0x0004 , FullStringFallback = 0x008 }
enum	SynthesizedFlags { SynthesizedItalic = 0x1 , SynthesizedBold = 0x2 , SynthesizedStretch = 0x4 }
enum	HintStyle { HintNone , HintLight , HintMedium , HintFull }
enum	SubpixelAntialiasingType {   Subpixel_None , Subpixel_RGB , Subpixel_BGR , Subpixel_VRGB ,   Subpixel_VBGR }

Public Member Functions
	QCoreTextFontEngine (CTFontRef font, const QFontDef &def)
	QCoreTextFontEngine (CGFontRef font, const QFontDef &def)
	~QCoreTextFontEngine ()
glyph_t	glyphIndex (uint ucs4) const override
int	stringToCMap (const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const override
void	recalcAdvances (QGlyphLayout *, ShaperFlags) const override
glyph_metrics_t	boundingBox (glyph_t glyph) override
QFixed	capHeight () const override
QFixed	xHeight () const override
qreal	maxCharWidth () const override
QFixed	averageCharWidth () const override
void	addGlyphsToPath (glyph_t *glyphs, QFixedPoint *positions, int numGlyphs, QPainterPath *path, QTextItem::RenderFlags) override
bool	canRender (const QChar *string, int len) const override
int	synthesized () const override
bool	supportsHorizontalSubPixelPositions () const override
bool	supportsVerticalSubPixelPositions () const override
QFixed	lineThickness () const override
QFixed	underlinePosition () const override
void	draw (CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight)
FaceId	faceId () const override
bool	getSfntTableData (uint, uchar *, uint *) const override
	Returns true if the font table idetified by tag exists in the font; returns false otherwise.
void	getUnscaledGlyph (glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics) override
QImage	alphaMapForGlyph (glyph_t, const QFixedPoint &subPixelPosition) override
QImage	alphaMapForGlyph (glyph_t glyph, const QFixedPoint &subPixelPosition, const QTransform &t) override
QImage	alphaRGBMapForGlyph (glyph_t, const QFixedPoint &subPixelPosition, const QTransform &t) override
glyph_metrics_t	alphaMapBoundingBox (glyph_t glyph, const QFixedPoint &, const QTransform &matrix, GlyphFormat) override
QImage	bitmapForGlyph (glyph_t, const QFixedPoint &subPixelPosition, const QTransform &t, const QColor &color) override
QFixed	emSquareSize () const override
void	doKerning (QGlyphLayout *g, ShaperFlags flags) const override
bool	supportsTransformation (const QTransform &transform) const override
bool	expectsGammaCorrectedBlending () const override
QFontEngine *	cloneWithSize (qreal pixelSize) const override
Qt::HANDLE	handle () const override
int	glyphMargin (QFontEngine::GlyphFormat format) override
QFontEngine::Properties	properties () const override
	Q_ENUM (FontSmoothing)
Public Member Functions inherited from QFontEngine
virtual	~QFontEngine ()
Type	type () const
QByteArray	getSfntTable (uint tag) const
bool	supportsSubPixelPositions () const
virtual QFixedPoint	subPixelPositionFor (const QFixedPoint &position) const
QFixed	subPixelPositionForX (QFixed x) const
bool	isColorFont () const
void	getGlyphPositions (const QGlyphLayout &glyphs, const QTransform &matrix, QTextItem::RenderFlags flags, QVarLengthArray< glyph_t > &glyphs_out, QVarLengthArray< QFixedPoint > &positions)
virtual void	addOutlineToPath (qreal, qreal, const QGlyphLayout &, QPainterPath *, QTextItem::RenderFlags flags)
void	addBitmapFontToPath (qreal x, qreal y, const QGlyphLayout &, QPainterPath *, QTextItem::RenderFlags)
virtual QImage	alphaMapForGlyph (glyph_t)
virtual QImage	alphaMapForGlyph (glyph_t, const QTransform &t)
virtual Glyph *	glyphData (glyph_t glyph, const QFixedPoint &subPixelPosition, GlyphFormat neededFormat, const QTransform &t)
virtual bool	hasInternalCaching () const
virtual void	removeGlyphFromCache (glyph_t)
virtual glyph_metrics_t	boundingBox (const QGlyphLayout &glyphs)
virtual glyph_metrics_t	boundingBox (glyph_t glyph, const QTransform &matrix)
glyph_metrics_t	tightBoundingBox (const QGlyphLayout &glyphs)
virtual QFixed	ascent () const
virtual QFixed	descent () const
virtual QFixed	leading () const
virtual qreal	minLeftBearing () const
virtual qreal	minRightBearing () const
virtual void	getGlyphBearings (glyph_t glyph, qreal *leftBearing=nullptr, qreal *rightBearing=nullptr)
bool	canRender (uint ucs4) const
virtual int	glyphCount () const
void *	harfbuzzFont () const
void *	harfbuzzFace () const
bool	supportsScript (QChar::Script script) const
virtual int	getPointInOutline (glyph_t glyph, int flags, quint32 point, QFixed *xpos, QFixed *ypos, quint32 *nPoints)
void	clearGlyphCache (const void *key)
void	setGlyphCache (const void *key, QFontEngineGlyphCache *data)
QFontEngineGlyphCache *	glyphCache (const void *key, GlyphFormat format, const QTransform &transform, const QColor &color=QColor()) const
virtual bool	hasUnreliableGlyphOutline () const
virtual void	setDefaultHintStyle (HintStyle)
void	loadKerningPairs (QFixed scalingFactor)

Static Public Member Functions
static FontSmoothing	fontSmoothing ()
static qreal	fontSmoothingGamma ()
static bool	ct_getSfntTable (void *user_data, uint tag, uchar *buffer, uint *length)
static QFont::Weight	qtWeightFromCFWeight (float value)
static QCoreTextFontEngine *	create (const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference, const QMap< QFont::Tag, float > &variableAxisValue)
Static Public Member Functions inherited from QFontEngine
static bool	isIgnorableChar (char32_t ucs4)
static bool	scriptRequiresOpenType (QChar::Script script)
static const uchar *	getCMap (const uchar *table, uint tableSize, bool *isSymbolFont, int *cmapSize)
static quint32	getTrueTypeGlyphIndex (const uchar *cmap, int cmapSize, uint unicode)
static QByteArray	convertToPostscriptFontFamilyName (const QByteArray &fontFamily)

Protected Member Functions
	QCoreTextFontEngine (const QFontDef &def)
void	init ()
QImage	imageForGlyph (glyph_t glyph, const QFixedPoint &subPixelPosition, const QTransform &m, const QColor &color=QColor())
void	loadAdvancesForGlyphs (QVarLengthArray< CGGlyph > &cgGlyphs, QGlyphLayout *glyphs) const
bool	hasColorGlyphs () const
bool	shouldAntialias () const
bool	shouldSmoothFont () const
void	initializeHeightMetrics () const override
Protected Member Functions inherited from QFontEngine
	QFontEngine (Type type)
QFixed	firstLeftBearing (const QGlyphLayout &glyphs)
QFixed	lastRightBearing (const QGlyphLayout &glyphs)
QFixed	calculatedCapHeight () const
bool	processHheaTable () const
bool	processOS2Table () const

Protected Attributes
QCFType< CTFontRef >	ctfont
QCFType< CGFontRef >	cgFont
int	synthesisFlags
CGAffineTransform	transform
QFixed	avgCharWidth
QFixed	underlineThickness
QFixed	underlinePos
QFontEngine::FaceId	face_id
bool	kerningPairsLoaded
Protected Attributes inherited from QFontEngine
QFixed	m_ascent
QFixed	m_descent
QFixed	m_leading
bool	m_heightMetricsQueried

Additional Inherited Members
Public Attributes inherited from QFontEngine
QAtomicInt	ref
QFontDef	fontDef
Holder	font_
Holder	face_
struct QFontEngine::FaceData	faceData
uint	cache_cost
uint	fsType: 16
bool	symbol
bool	isSmoothlyScalable
QList< KernPair >	kerning_pairs
GlyphFormat	glyphFormat
int	m_subPixelPositionCount

Detailed Description

Definition at line 31 of file qfontengine_coretext_p.h.

Member Enumeration Documentation

FontSmoothing

enum QCoreTextFontEngine::FontSmoothing

Enumerator
Disabled
Subpixel
Grayscale

Definition at line 85 of file qfontengine_coretext_p.h.

Constructor & Destructor Documentation

QCoreTextFontEngine() [1/3]

QCoreTextFontEngine::QCoreTextFontEngine	(	CTFontRef	font,
		const QFontDef &	def )

Definition at line 161 of file qfontengine_coretext.mm.

References cgFont, QCFType< T >::constructFromGet(), ctfont, font, and init().

Referenced by cloneWithSize().

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QCoreTextFontEngine() [2/3]

QCoreTextFontEngine::QCoreTextFontEngine	(	CGFontRef	font,
		const QFontDef &	def )

Definition at line 169 of file qfontengine_coretext.mm.

References cgFont, QCFType< T >::constructFromGet(), ctfont, font, QFontEngine::fontDef, init(), and QFontDef::pixelSize.

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~QCoreTextFontEngine()

QCoreTextFontEngine::~QCoreTextFontEngine

(

)

Definition at line 184 of file qfontengine_coretext.mm.

QCoreTextFontEngine() [3/3]

QCoreTextFontEngine::QCoreTextFontEngine ( const QFontDef & def )

protected

Definition at line 177 of file qfontengine_coretext.mm.

References QFontEngine::fontDef, and qt_transform_from_fontdef().

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Member Function Documentation

addGlyphsToPath()

void QCoreTextFontEngine::addGlyphsToPath ( glyph_t * glyphs, QFixedPoint * positions, int numGlyphs, QPainterPath * path, QTextItem::RenderFlags  )

overridevirtual

Reimplemented from QFontEngine.

Definition at line 479 of file qfontengine_coretext.mm.

References convertCGPathToQPainterPath(), ctfont, QFontEngine::fontDef, hasColorGlyphs(), i, info, positions, QFontDef::stretch, synthesisFlags, QFontEngine::SynthesizedItalic, and SYNTHETIC_ITALIC_SKEW.

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alphaMapBoundingBox()

glyph_metrics_t QCoreTextFontEngine::alphaMapBoundingBox ( glyph_t glyph, const QFixedPoint & subPixelPosition, const QTransform & matrix, GlyphFormat format )

overridevirtual

Reimplemented from QFontEngine.

Definition at line 511 of file qfontengine_coretext.mm.

References QFontEngine::alphaMapBoundingBox(), QFont::AnyStretch, boundingBox(), QFontEngine::fontDef, QFontEngine::Format_A32, QFontEngine::Format_A8, glyph_metrics_t::height, qcoretextfontengine_scaleMetrics(), QTransform::scale(), QFontDef::stretch, QTransform::TxScale, glyph_metrics_t::width, glyph_metrics_t::x, xform, and glyph_metrics_t::y.

Referenced by imageForGlyph().

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alphaMapForGlyph() [1/2]

QImage QCoreTextFontEngine::alphaMapForGlyph ( glyph_t glyph, const QFixedPoint & subPixelPosition, const QTransform & t )

overridevirtual

Reimplemented from QFontEngine.

Definition at line 815 of file qfontengine_coretext.mm.

References QFontEngine::alphaMapForGlyph(), QImage::Format_Alpha8, QImage::height(), imageForGlyph(), qGray(), QImage::scanLine(), QTransform::TxScale, and QImage::width().

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alphaMapForGlyph() [2/2]

QImage QCoreTextFontEngine::alphaMapForGlyph ( glyph_t glyph, const QFixedPoint & subPixelPosition )

overridevirtual

Reimplemented from QFontEngine.

Definition at line 810 of file qfontengine_coretext.mm.

References alphaMapForGlyph().

Referenced by alphaMapForGlyph().

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alphaRGBMapForGlyph()

QImage QCoreTextFontEngine::alphaRGBMapForGlyph ( glyph_t glyph, const QFixedPoint & subPixelPosition, const QTransform & t )

overridevirtual

Reimplemented from QFontEngine.

Definition at line 837 of file qfontengine_coretext.mm.

References QFontEngine::alphaRGBMapForGlyph(), imageForGlyph(), and QTransform::TxScale.

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averageCharWidth()

QFixed QCoreTextFontEngine::averageCharWidth ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 356 of file qfontengine_coretext.mm.

References avgCharWidth.

bitmapForGlyph()

QImage QCoreTextFontEngine::bitmapForGlyph ( glyph_t glyph, const QFixedPoint & subPixelPosition, const QTransform & t, const QColor & color )

overridevirtual

Reimplemented from QFontEngine.

Definition at line 845 of file qfontengine_coretext.mm.

References QFontEngine::bitmapForGlyph(), imageForGlyph(), and QTransform::TxScale.

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boundingBox()

glyph_metrics_t QCoreTextFontEngine::boundingBox ( glyph_t glyph )

overridevirtual

Implements QFontEngine.

Definition at line 313 of file qfontengine_coretext.mm.

References ctfont, QFixed::fromReal(), rect, ret, synthesisFlags, QFontEngine::SynthesizedItalic, and SYNTHETIC_ITALIC_SKEW.

Referenced by alphaMapBoundingBox(), getUnscaledGlyph(), and maxCharWidth().

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canRender()

bool QCoreTextFontEngine::canRender ( const QChar * string, int len ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 884 of file qfontengine_coretext.mm.

References ctfont.

capHeight()

QFixed QCoreTextFontEngine::capHeight ( ) const

overridevirtual

Implements QFontEngine.

Definition at line 342 of file qfontengine_coretext.mm.

References QFontEngine::calculatedCapHeight(), ctfont, and QFixed::fromReal().

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cloneWithSize()

QFontEngine * QCoreTextFontEngine::cloneWithSize ( qreal pixelSize ) const

overridevirtual

Reimplemented from QFontEngine.

Reimplemented in QCoreTextRawFontEngine.

Definition at line 922 of file qfontengine_coretext.mm.

References QCoreTextFontEngine(), cgFont, QFontEngine::fontDef, QFontDef::pixelSize, and qt_defaultDpi().

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create()

QCoreTextFontEngine * QCoreTextFontEngine::create ( const QByteArray & fontData, qreal pixelSize, QFont::HintingPreference hintingPreference, const QMap< QFont::Tag, float > & variableAxisValue )

static

Definition at line 131 of file qfontengine_coretext.mm.

References cgFont, QFontDef::pixelSize, QFontDef::pointSize, Q_UNUSED, qt_defaultDpi(), and qWarning.

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ct_getSfntTable()

bool QCoreTextFontEngine::ct_getSfntTable ( void * user_data, uint tag, uchar * buffer, uint * length )

static

Definition at line 58 of file qfontengine_coretext.mm.

References ctfont, Q_ASSERT, tag, and user_data.

Referenced by getFontDescription(), and getSfntTableData().

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doKerning()

void QCoreTextFontEngine::doKerning ( QGlyphLayout * g, ShaperFlags flags ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 987 of file qfontengine_coretext.mm.

References ctfont, QFontEngine::doKerning(), QFixed::fromReal(), kerningPairsLoaded, and QFontEngine::loadKerningPairs().

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draw()

void QCoreTextFontEngine::draw	(	CGContextRef	ctx,
		qreal	x,
		qreal	y,
		const QTextItemInt &	ti,
		int	paintDeviceHeight )

Definition at line 375 of file qfontengine_coretext.mm.

References ctfont, QFontEngine::fontDef, QFontEngine::getGlyphPositions(), i, lineThickness(), QFontDef::pixelSize, positions, Q_UNUSED, qt_scaleForTransform(), synthesisFlags, QFontEngine::SynthesizedBold, QFontEngine::SynthesizedItalic, SYNTHETIC_ITALIC_SKEW, QFixed::toReal(), and QTransform::translate().

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emSquareSize()

QFixed QCoreTextFontEngine::emSquareSize ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 917 of file qfontengine_coretext.mm.

References ctfont.

Referenced by properties().

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expectsGammaCorrectedBlending()

bool QCoreTextFontEngine::expectsGammaCorrectedBlending ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 687 of file qfontengine_coretext.mm.

References fontSmoothing(), shouldSmoothFont(), and Subpixel.

Referenced by imageForGlyph().

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faceId()

QFontEngine::FaceId QCoreTextFontEngine::faceId ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 879 of file qfontengine_coretext.mm.

References face_id.

fontSmoothing()

QCoreTextFontEngine::FontSmoothing QCoreTextFontEngine::fontSmoothing ( )

static

Definition at line 608 of file qfontengine_coretext.mm.

References defaults, Disabled, font, fontSmoothing(), QImage::Format_RGB32, Grayscale, QImage::pixel(), qBlue(), qCDebug, qGreen(), qRed(), QRgb, sp, and Subpixel.

Referenced by expectsGammaCorrectedBlending(), fontSmoothing(), QCocoaTheme::handleSystemThemeChange(), imageForGlyph(), init(), and shouldSmoothFont().

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fontSmoothingGamma()

qreal QCoreTextFontEngine::fontSmoothingGamma ( )

static

Definition at line 692 of file qfontengine_coretext.mm.

Referenced by QCocoaIntegration::styleHint().

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getSfntTableData()

bool QCoreTextFontEngine::getSfntTableData ( uint tag, uchar * buffer, uint * length ) const

overridevirtual

Returns true if the font table idetified by tag exists in the font; returns false otherwise.

If buffer is \nullptr, stores the size of the buffer required for the font table data, in bytes, in length. If buffer is not \nullptr and the capacity of the buffer, passed in length, is sufficient to store the font table data, also copies the font table data to buffer.

Note: returning false when the font table exists could lead to an undefined behavior.

Reimplemented from QFontEngine.

Definition at line 890 of file qfontengine_coretext.mm.

References ct_getSfntTable(), ctfont, and tag.

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getUnscaledGlyph()

void QCoreTextFontEngine::getUnscaledGlyph ( glyph_t glyph, QPainterPath * path, glyph_metrics_t * metrics )

overridevirtual

Reimplemented from QFontEngine.

Definition at line 895 of file qfontengine_coretext.mm.

References boundingBox(), convertCGPathToQPainterPath(), ctfont, QFixed::fromReal(), glyph_metrics_t::height, info, QFixed::toReal(), glyph_metrics_t::width, glyph_metrics_t::x, glyph_metrics_t::xoff, glyph_metrics_t::y, and glyph_metrics_t::yoff.

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glyphIndex()

glyph_t QCoreTextFontEngine::glyphIndex ( uint ucs4 ) const

overridevirtual

Implements QFontEngine.

Definition at line 259 of file qfontengine_coretext.mm.

References ctfont, Q_UNLIKELY, and str.

Referenced by maxCharWidth().

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glyphMargin()

int QCoreTextFontEngine::glyphMargin ( QFontEngine::GlyphFormat format )

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 81 of file qfontengine_coretext_p.h.

References Q_UNUSED.

handle()

Qt::HANDLE QCoreTextFontEngine::handle ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 931 of file qfontengine_coretext.mm.

References ctfont.

hasColorGlyphs()

bool QCoreTextFontEngine::hasColorGlyphs ( ) const

protected

Definition at line 369 of file qfontengine_coretext.mm.

References QFontEngine::Format_ARGB, and QFontEngine::glyphFormat.

Referenced by addGlyphsToPath(), imageForGlyph(), and shouldSmoothFont().

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imageForGlyph()

QImage QCoreTextFontEngine::imageForGlyph ( glyph_t glyph, const QFixedPoint & subPixelPosition, const QTransform & m, const QColor & color = QColor() )

protected

Definition at line 697 of file qfontengine_coretext.mm.

References alphaMapBoundingBox(), QImage::bits(), QImage::bytesPerLine(), QFixed::ceil(), ctfont, Qt::Dark, expectsGammaCorrectedBlending(), QImage::fill(), QFontEngine::fontDef, fontSmoothing(), QImage::Format_ARGB32_Premultiplied, QImage::Format_RGB32, QFontEngine::glyphFormat, Grayscale, hasColorGlyphs(), QImage::height(), glyph_metrics_t::height, QImage::invertPixels(), lineThickness(), QFontDef::pixelSize, QGuiApplicationPrivate::platformTheme(), Q_ASSERT, qGamma_correct_back_to_linear_cs(), qt_mac_bitmapInfoForImage(), qt_scaleForTransform(), shouldAntialias(), shouldSmoothFont(), synthesisFlags, QFontEngine::SynthesizedBold, QFontEngine::SynthesizedItalic, SYNTHETIC_ITALIC_SKEW, QFixed::toReal(), QFixed::truncate(), Qt::white, QImage::width(), glyph_metrics_t::width, QFixedPoint::x, glyph_metrics_t::x, QFixedPoint::y, and glyph_metrics_t::y.

Referenced by alphaMapForGlyph(), alphaRGBMapForGlyph(), and bitmapForGlyph().

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init()

void QCoreTextFontEngine::init ( )

protected

Definition at line 188 of file qfontengine_coretext.mm.

References QFontEngine::averageCharWidth(), avgCharWidth, QFont::Bold, QFontEngine::cache_cost, cgFont, ctfont, face_id, QFontDef::families, QFontEngine::FaceId::filename, QFontEngine::fontDef, fontSmoothing(), QFontEngine::Format_A32, QFontEngine::Format_A8, QFontEngine::Format_ARGB, QFixed::fromReal(), QFontEngine::fsType, QFontEngine::getSfntTable(), QFontEngine::glyphFormat, QFontEngine::FaceId::index, kerningPairsLoaded, QFontDef::pixelSize, Q_ASSERT, qAbs(), qEnvironmentVariableIsSet(), qtWeightFromCFWeight(), shouldSmoothFont(), QFontDef::style, QFont::StyleItalic, QFontDef::styleName, QFont::StyleNormal, QFont::StyleOblique, Subpixel, synthesisFlags, QFontEngine::SynthesizedBold, QFontEngine::SynthesizedItalic, QFixed::toInt(), underlinePos, underlineThickness, QFontEngine::FaceId::variableAxes, QFontDef::variableAxisValues, and QFontDef::weight.

Referenced by QCoreTextFontEngine(), and QCoreTextFontEngine().

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initializeHeightMetrics()

void QCoreTextFontEngine::initializeHeightMetrics ( ) const

overrideprotectedvirtual

Reimplemented from QFontEngine.

Definition at line 333 of file qfontengine_coretext.mm.

References ctfont, QFixed::fromReal(), QFontEngine::m_ascent, QFontEngine::m_descent, QFontEngine::m_heightMetricsQueried, and QFontEngine::m_leading.

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lineThickness()

QFixed QCoreTextFontEngine::lineThickness ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 947 of file qfontengine_coretext.mm.

References underlineThickness.

Referenced by draw(), and imageForGlyph().

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loadAdvancesForGlyphs()

void QCoreTextFontEngine::loadAdvancesForGlyphs ( QVarLengthArray< CGGlyph > & cgGlyphs, QGlyphLayout * glyphs ) const

protected

Definition at line 868 of file qfontengine_coretext.mm.

References QGlyphLayout::advances, QFont::AnyStretch, ctfont, QFontEngine::fontDef, QFixed::fromReal(), i, QGlyphLayout::numGlyphs, and QFontDef::stretch.

Referenced by recalcAdvances(), and stringToCMap().

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maxCharWidth()

qreal QCoreTextFontEngine::maxCharWidth ( ) const

overridevirtual

Implements QFontEngine.

Definition at line 361 of file qfontengine_coretext.mm.

References boundingBox(), glyphIndex(), QFixed::toReal(), and glyph_metrics_t::xoff.

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properties()

QFontEngine::Properties QCoreTextFontEngine::properties ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 957 of file qfontengine_coretext.mm.

References ctfont, emSquareSize(), and QFixed::fromReal().

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Q_ENUM()

QCoreTextFontEngine::Q_ENUM

(

FontSmoothing

)

qtWeightFromCFWeight()

QFont::Weight QCoreTextFontEngine::qtWeightFromCFWeight ( float value )

static

Definition at line 74 of file qfontengine_coretext.mm.

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

Referenced by getFontDescription(), and init().

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recalcAdvances()

void QCoreTextFontEngine::recalcAdvances ( QGlyphLayout * , ShaperFlags  ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 853 of file qfontengine_coretext.mm.

References QGlyphLayout::glyphs, QFontEngineMulti::highByte(), i, loadAdvancesForGlyphs(), QGlyphLayout::numGlyphs, Q_ASSERT, and Q_UNUSED.

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shouldAntialias()

bool QCoreTextFontEngine::shouldAntialias ( ) const

protected

Definition at line 665 of file qfontengine_coretext.mm.

References QFontEngine::fontDef, QFont::NoAntialias, and QFontDef::styleStrategy.

Referenced by imageForGlyph(), and shouldSmoothFont().

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shouldSmoothFont()

bool QCoreTextFontEngine::shouldSmoothFont ( ) const

protected

Definition at line 670 of file qfontengine_coretext.mm.

References Disabled, QFontEngine::fontDef, fontSmoothing(), Grayscale, hasColorGlyphs(), QFont::NoSubpixelAntialias, shouldAntialias(), QFontDef::styleStrategy, and Subpixel.

Referenced by expectsGammaCorrectedBlending(), imageForGlyph(), and init().

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stringToCMap()

int QCoreTextFontEngine::stringToCMap ( const QChar * str, int len, QGlyphLayout * glyphs, int * nglyphs, ShaperFlags flags ) const

overridevirtual

Implements QFontEngine.

Definition at line 278 of file qfontengine_coretext.mm.

References ctfont, QString::data(), QFontEngine::GlyphIndicesOnly, QGlyphLayout::glyphs, QFontEngine::isIgnorableChar(), it, loadAdvancesForGlyphs(), QGlyphLayout::numGlyphs, Q_ASSERT, and str.

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supportsHorizontalSubPixelPositions()

bool QCoreTextFontEngine::supportsHorizontalSubPixelPositions ( ) const

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 57 of file qfontengine_coretext_p.h.

supportsTransformation()

bool QCoreTextFontEngine::supportsTransformation ( const QTransform & transform ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 936 of file qfontengine_coretext.mm.

References QTransform::TxScale.

supportsVerticalSubPixelPositions()

bool QCoreTextFontEngine::supportsVerticalSubPixelPositions ( ) const

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 58 of file qfontengine_coretext_p.h.

synthesized()

int QCoreTextFontEngine::synthesized ( ) const

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 56 of file qfontengine_coretext_p.h.

underlinePosition()

QFixed QCoreTextFontEngine::underlinePosition ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 952 of file qfontengine_coretext.mm.

References underlinePos.

xHeight()

QFixed QCoreTextFontEngine::xHeight ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 351 of file qfontengine_coretext.mm.

References ctfont, and QFixed::fromReal().

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Member Data Documentation

avgCharWidth

QFixed QCoreTextFontEngine::avgCharWidth

protected

Definition at line 110 of file qfontengine_coretext_p.h.

Referenced by averageCharWidth(), and init().

cgFont

QCFType<CGFontRef> QCoreTextFontEngine::cgFont

protected

Definition at line 107 of file qfontengine_coretext_p.h.

Referenced by QCoreTextFontEngine(), QCoreTextFontEngine(), QCoreTextRawFontEngine::cloneWithSize(), cloneWithSize(), create(), and init().

ctfont

QCFType<CTFontRef> QCoreTextFontEngine::ctfont

protected

Definition at line 106 of file qfontengine_coretext_p.h.

Referenced by QCoreTextFontEngine(), QCoreTextFontEngine(), addGlyphsToPath(), boundingBox(), canRender(), capHeight(), ct_getSfntTable(), doKerning(), draw(), emSquareSize(), getSfntTableData(), getUnscaledGlyph(), glyphIndex(), handle(), imageForGlyph(), init(), initializeHeightMetrics(), loadAdvancesForGlyphs(), properties(), stringToCMap(), and xHeight().

face_id

QFontEngine::FaceId QCoreTextFontEngine::face_id

protected

Definition at line 113 of file qfontengine_coretext_p.h.

Referenced by faceId(), and init().

kerningPairsLoaded

bool QCoreTextFontEngine::kerningPairsLoaded

mutableprotected

Definition at line 114 of file qfontengine_coretext_p.h.

Referenced by doKerning(), and init().

synthesisFlags

int QCoreTextFontEngine::synthesisFlags

protected

Definition at line 108 of file qfontengine_coretext_p.h.

Referenced by addGlyphsToPath(), boundingBox(), draw(), imageForGlyph(), and init().

transform

CGAffineTransform QCoreTextFontEngine::transform

protected

Definition at line 109 of file qfontengine_coretext_p.h.

underlinePos

QFixed QCoreTextFontEngine::underlinePos

protected

Definition at line 112 of file qfontengine_coretext_p.h.

Referenced by init(), and underlinePosition().

underlineThickness

QFixed QCoreTextFontEngine::underlineThickness

protected

Definition at line 111 of file qfontengine_coretext_p.h.

Referenced by init(), and lineThickness().

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The documentation for this class was generated from the following files:

• qtbase/src/gui/text/coretext/qfontengine_coretext_p.h (1593b1f6d610ce9bdb9dff4104f7f447e03a9585)
• qtbase/src/gui/text/coretext/qfontengine_coretext.mm (1593b1f6d610ce9bdb9dff4104f7f447e03a9585)