#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 }

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

bool	stringToCMap (const QChar str, int len, QGlyphLayout glyphs, int *nglyphs, ShaperFlags flags) const override

void	recalcAdvances (QGlyphLayout *, ShaperFlags) const override

glyph_metrics_t	boundingBox (const QGlyphLayout &glyphs) 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

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 (const QFixed &x) 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 (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)

Static Public Member Functions inherited from QFontEngine
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	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 67 of file qfontengine_coretext_p.h.

Member Enumeration Documentation

◆ FontSmoothing

enum QCoreTextFontEngine::FontSmoothing

Enumerator
Disabled
Subpixel
Grayscale

Definition at line 122 of file qfontengine_coretext_p.h.

Constructor & Destructor Documentation

◆ QCoreTextFontEngine() [1/3]

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

Definition at line 190 of file qfontengine_coretext.mm.

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◆ QCoreTextFontEngine() [2/3]

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

Definition at line 198 of file qfontengine_coretext.mm.

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◆ ~QCoreTextFontEngine()

QCoreTextFontEngine::~QCoreTextFontEngine ( )

Definition at line 213 of file qfontengine_coretext.mm.

◆ QCoreTextFontEngine() [3/3]

QCoreTextFontEngine::QCoreTextFontEngine ( const QFontDef & def )

protected

Definition at line 206 of file qfontengine_coretext.mm.

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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 504 of file qfontengine_coretext.mm.

◆ alphaMapBoundingBox()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 536 of file qfontengine_coretext.mm.

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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 828 of file qfontengine_coretext.mm.

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◆ alphaMapForGlyph() [2/2]

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 823 of file qfontengine_coretext.mm.

◆ alphaRGBMapForGlyph()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 850 of file qfontengine_coretext.mm.

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◆ averageCharWidth()

QFixed QCoreTextFontEngine::averageCharWidth ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 391 of file qfontengine_coretext.mm.

◆ bitmapForGlyph()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 858 of file qfontengine_coretext.mm.

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◆ boundingBox() [1/2]

glyph_metrics_t QCoreTextFontEngine::boundingBox ( const QGlyphLayout & glyphs )

overridevirtual

Implements QFontEngine.

Definition at line 340 of file qfontengine_coretext.mm.

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◆ boundingBox() [2/2]

glyph_metrics_t QCoreTextFontEngine::boundingBox ( glyph_t glyph )

overridevirtual

Implements QFontEngine.

Definition at line 348 of file qfontengine_coretext.mm.

◆ canRender()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 896 of file qfontengine_coretext.mm.

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◆ capHeight()

QFixed QCoreTextFontEngine::capHeight ( ) const

overridevirtual

Implements QFontEngine.

Definition at line 377 of file qfontengine_coretext.mm.

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◆ cloneWithSize()

QFontEngine * QCoreTextFontEngine::cloneWithSize ( qreal pixelSize ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 934 of file qfontengine_coretext.mm.

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◆ create()

QCoreTextFontEngine * QCoreTextFontEngine::create	(	const QByteArray &	fontData,
		qreal	pixelSize,
		QFont::HintingPreference	hintingPreference
	)

static

Definition at line 164 of file qfontengine_coretext.mm.

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◆ ct_getSfntTable()

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

static

Definition at line 91 of file qfontengine_coretext.mm.

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◆ doKerning()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 999 of file qfontengine_coretext.mm.

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◆ draw()

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

Definition at line 409 of file qfontengine_coretext.mm.

◆ emSquareSize()

QFixed QCoreTextFontEngine::emSquareSize ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 929 of file qfontengine_coretext.mm.

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◆ expectsGammaCorrectedBlending()

bool QCoreTextFontEngine::expectsGammaCorrectedBlending ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 708 of file qfontengine_coretext.mm.

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◆ faceId()

QFontEngine::FaceId QCoreTextFontEngine::faceId ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 891 of file qfontengine_coretext.mm.

◆ fontSmoothing()

QCoreTextFontEngine::FontSmoothing QCoreTextFontEngine::fontSmoothing ( )

static

Definition at line 629 of file qfontengine_coretext.mm.

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◆ fontSmoothingGamma()

qreal QCoreTextFontEngine::fontSmoothingGamma ( )

static

Definition at line 713 of file qfontengine_coretext.mm.

◆ 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 902 of file qfontengine_coretext.mm.

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◆ getUnscaledGlyph()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 907 of file qfontengine_coretext.mm.

◆ glyphIndex()

glyph_t QCoreTextFontEngine::glyphIndex ( uint ucs4 ) const

overridevirtual

Implements QFontEngine.

Definition at line 287 of file qfontengine_coretext.mm.

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◆ glyphMargin()

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

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 118 of file qfontengine_coretext_p.h.

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◆ handle()

Qt::HANDLE QCoreTextFontEngine::handle ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 943 of file qfontengine_coretext.mm.

◆ hasColorGlyphs()

bool QCoreTextFontEngine::hasColorGlyphs ( ) const

protected

Definition at line 404 of file qfontengine_coretext.mm.

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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 718 of file qfontengine_coretext.mm.

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◆ init()

void QCoreTextFontEngine::init ( )

protected

Definition at line 217 of file qfontengine_coretext.mm.

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◆ initializeHeightMetrics()

void QCoreTextFontEngine::initializeHeightMetrics ( ) const

overrideprotectedvirtual

Reimplemented from QFontEngine.

Definition at line 368 of file qfontengine_coretext.mm.

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◆ lineThickness()

QFixed QCoreTextFontEngine::lineThickness ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 959 of file qfontengine_coretext.mm.

◆ loadAdvancesForGlyphs()

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

protected

Definition at line 881 of file qfontengine_coretext.mm.

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◆ maxCharWidth()

qreal QCoreTextFontEngine::maxCharWidth ( ) const

overridevirtual

Implements QFontEngine.

Definition at line 396 of file qfontengine_coretext.mm.

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◆ properties()

QFontEngine::Properties QCoreTextFontEngine::properties ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 969 of file qfontengine_coretext.mm.

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◆ Q_ENUM()

QCoreTextFontEngine::Q_ENUM ( FontSmoothing )

◆ qtWeightFromCFWeight()

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

static

Definition at line 107 of file qfontengine_coretext.mm.

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◆ recalcAdvances()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 866 of file qfontengine_coretext.mm.

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◆ shouldAntialias()

bool QCoreTextFontEngine::shouldAntialias ( ) const

protected

Definition at line 686 of file qfontengine_coretext.mm.

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◆ shouldSmoothFont()

bool QCoreTextFontEngine::shouldSmoothFont ( ) const

protected

Definition at line 691 of file qfontengine_coretext.mm.

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◆ stringToCMap()

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

overridevirtual

Implements QFontEngine.

Definition at line 306 of file qfontengine_coretext.mm.

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◆ supportsHorizontalSubPixelPositions()

bool QCoreTextFontEngine::supportsHorizontalSubPixelPositions ( ) const

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 94 of file qfontengine_coretext_p.h.

◆ supportsTransformation()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 948 of file qfontengine_coretext.mm.

◆ supportsVerticalSubPixelPositions()

bool QCoreTextFontEngine::supportsVerticalSubPixelPositions ( ) const

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 95 of file qfontengine_coretext_p.h.

◆ synthesized()

int QCoreTextFontEngine::synthesized ( ) const

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 93 of file qfontengine_coretext_p.h.

◆ underlinePosition()

QFixed QCoreTextFontEngine::underlinePosition ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 964 of file qfontengine_coretext.mm.

◆ xHeight()

QFixed QCoreTextFontEngine::xHeight ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 386 of file qfontengine_coretext.mm.

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Member Data Documentation

◆ avgCharWidth

QFixed QCoreTextFontEngine::avgCharWidth

protected

Definition at line 147 of file qfontengine_coretext_p.h.

◆ cgFont

QCFType<CGFontRef> QCoreTextFontEngine::cgFont

protected

Definition at line 144 of file qfontengine_coretext_p.h.

◆ ctfont

QCFType<CTFontRef> QCoreTextFontEngine::ctfont

protected

Definition at line 143 of file qfontengine_coretext_p.h.

◆ face_id

QFontEngine::FaceId QCoreTextFontEngine::face_id

protected

Definition at line 150 of file qfontengine_coretext_p.h.

◆ kerningPairsLoaded

bool QCoreTextFontEngine::kerningPairsLoaded

mutableprotected

Definition at line 151 of file qfontengine_coretext_p.h.

◆ synthesisFlags

int QCoreTextFontEngine::synthesisFlags

protected

Definition at line 145 of file qfontengine_coretext_p.h.

◆ transform

CGAffineTransform QCoreTextFontEngine::transform

protected

Definition at line 146 of file qfontengine_coretext_p.h.

◆ underlinePos

QFixed QCoreTextFontEngine::underlinePos

protected

Definition at line 149 of file qfontengine_coretext_p.h.

◆ underlineThickness

QFixed QCoreTextFontEngine::underlineThickness

protected

Definition at line 148 of file qfontengine_coretext_p.h.

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

src/gui/text/coretext/qfontengine_coretext_p.h
src/gui/text/coretext/qfontengine_coretext.mm

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ FontSmoothing

Constructor & Destructor Documentation

◆ QCoreTextFontEngine() [1/3]

◆ QCoreTextFontEngine() [2/3]

◆ ~QCoreTextFontEngine()

◆ QCoreTextFontEngine() [3/3]

Member Function Documentation

◆ addGlyphsToPath()

◆ alphaMapBoundingBox()

◆ alphaMapForGlyph() [1/2]

◆ alphaMapForGlyph() [2/2]

◆ alphaRGBMapForGlyph()

◆ averageCharWidth()

◆ bitmapForGlyph()

◆ boundingBox() [1/2]

◆ boundingBox() [2/2]

◆ canRender()

◆ capHeight()

◆ cloneWithSize()

◆ create()

◆ ct_getSfntTable()

◆ doKerning()

◆ draw()

◆ emSquareSize()

◆ expectsGammaCorrectedBlending()

◆ faceId()

◆ fontSmoothing()

◆ fontSmoothingGamma()

◆ getSfntTableData()

◆ getUnscaledGlyph()

◆ glyphIndex()

◆ glyphMargin()

◆ handle()

◆ hasColorGlyphs()

◆ imageForGlyph()

◆ init()

◆ initializeHeightMetrics()

◆ lineThickness()

◆ loadAdvancesForGlyphs()

◆ maxCharWidth()

◆ properties()

◆ Q_ENUM()

◆ qtWeightFromCFWeight()

◆ recalcAdvances()

◆ shouldAntialias()

◆ shouldSmoothFont()

◆ stringToCMap()

◆ supportsHorizontalSubPixelPositions()

◆ supportsTransformation()

◆ supportsVerticalSubPixelPositions()

◆ synthesized()

◆ underlinePosition()

◆ xHeight()

Member Data Documentation

◆ avgCharWidth

◆ cgFont

◆ ctfont

◆ face_id

◆ kerningPairsLoaded

◆ synthesisFlags

◆ transform

◆ underlinePos

◆ underlineThickness