#include <qfontengine_p.h>

Inheritance diagram for QFontEngineBox:

Collaboration diagram for QFontEngineBox:

Public Member Functions
	QFontEngineBox (int size)

	~QFontEngineBox ()

virtual glyph_t	glyphIndex (uint ucs4) const override

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

virtual void	recalcAdvances (QGlyphLayout *, ShaperFlags) const override

void	draw (QPaintEngine *p, qreal x, qreal y, const QTextItemInt &si)

virtual void	addOutlineToPath (qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags) override

virtual glyph_metrics_t	boundingBox (const QGlyphLayout &glyphs) override

virtual glyph_metrics_t	boundingBox (glyph_t glyph) override

virtual QFontEngine *	cloneWithSize (qreal pixelSize) const override

virtual QFixed	ascent () const override

virtual QFixed	capHeight () const override

virtual QFixed	descent () const override

virtual QFixed	leading () const override

virtual qreal	maxCharWidth () const override

virtual qreal	minLeftBearing () const override

virtual qreal	minRightBearing () const override

virtual QImage	alphaMapForGlyph (glyph_t) override

virtual bool	canRender (const QChar *string, int len) const override

int	size () const

Public Member Functions inherited from QFontEngine
virtual	~QFontEngine ()

Type	type () const

virtual Properties	properties () const

virtual void	getUnscaledGlyph (glyph_t glyph, QPainterPath path, glyph_metrics_t metrics)

QByteArray	getSfntTable (uint tag) const

virtual bool	getSfntTableData (uint tag, uchar buffer, uint length) const
	Returns `true` if the font table idetified by tag exists in the font; returns `false` otherwise.

virtual FaceId	faceId () const

virtual int	synthesized () const

bool	supportsSubPixelPositions () const

virtual bool	supportsHorizontalSubPixelPositions () const

virtual bool	supportsVerticalSubPixelPositions () const

virtual QFixedPoint	subPixelPositionFor (const QFixedPoint &position) const

QFixed	subPixelPositionForX (QFixed x) const

virtual QFixed	emSquareSize () const

virtual glyph_t	glyphIndex (uint ucs4) const =0

virtual bool	stringToCMap (const QChar str, int len, QGlyphLayout glyphs, int *nglyphs, ShaperFlags flags) const =0

virtual void	recalcAdvances (QGlyphLayout *, ShaperFlags) const

virtual void	doKerning (QGlyphLayout *, ShaperFlags) const

virtual void	addGlyphsToPath (glyph_t glyphs, QFixedPoint positions, int nglyphs, QPainterPath *path, QTextItem::RenderFlags flags)

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 glyph, const QFixedPoint &subPixelPosition)

virtual QImage	alphaMapForGlyph (glyph_t, const QTransform &t)

virtual QImage	alphaMapForGlyph (glyph_t, const QFixedPoint &subPixelPosition, const QTransform &t)

virtual QImage	alphaRGBMapForGlyph (glyph_t, const QFixedPoint &subPixelPosition, const QTransform &t)

virtual QImage	bitmapForGlyph (glyph_t, const QFixedPoint &subPixelPosition, const QTransform &t, const QColor &color=QColor())

virtual Glyph *	glyphData (glyph_t glyph, const QFixedPoint &subPixelPosition, GlyphFormat neededFormat, const QTransform &t)

virtual bool	hasInternalCaching () const

virtual glyph_metrics_t	alphaMapBoundingBox (glyph_t glyph, const QFixedPoint &, const QTransform &matrix, GlyphFormat)

virtual void	removeGlyphFromCache (glyph_t)

virtual glyph_metrics_t	boundingBox (const QGlyphLayout &glyphs)

virtual glyph_metrics_t	boundingBox (glyph_t glyph)=0

virtual glyph_metrics_t	boundingBox (glyph_t glyph, const QTransform &matrix)

glyph_metrics_t	tightBoundingBox (const QGlyphLayout &glyphs)

virtual QFixed	ascent () const

virtual QFixed	capHeight () const =0

virtual QFixed	descent () const

virtual QFixed	leading () const

virtual QFixed	xHeight () const

virtual QFixed	averageCharWidth () const

virtual QFixed	lineThickness () const

virtual QFixed	underlinePosition () const

virtual qreal	maxCharWidth () const =0

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 bool	canRender (const QChar *str, int len) const

virtual bool	supportsTransformation (const QTransform &transform) const

virtual int	glyphCount () const

virtual int	glyphMargin (GlyphFormat format)

virtual QFontEngine *	cloneWithSize (qreal) const

virtual Qt::HANDLE	handle () 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 bool	expectsGammaCorrectedBlending () const

virtual void	setDefaultHintStyle (HintStyle)

void	loadKerningPairs (QFixed scalingFactor)

Protected Member Functions
	QFontEngineBox (Type type, int size)

Protected Member Functions inherited from QFontEngine
	QFontEngine (Type type)

QFixed	firstLeftBearing (const QGlyphLayout &glyphs)

QFixed	lastRightBearing (const QGlyphLayout &glyphs)

QFixed	calculatedCapHeight () const

virtual void	initializeHeightMetrics () const

bool	processHheaTable () const

bool	processOS2Table () const

Friends
class	QFontPrivate

Additional Inherited Members
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 }

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)

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

Protected Attributes inherited from QFontEngine
QFixed	m_ascent

QFixed	m_descent

QFixed	m_leading

bool	m_heightMetricsQueried

Detailed Description

Definition at line 387 of file qfontengine_p.h.

Constructor & Destructor Documentation

◆ QFontEngineBox() [1/2]

QFontEngineBox::QFontEngineBox ( int size )

Definition at line 1518 of file qfontengine.cpp.

References QFontEngine::cache_cost.

◆ ~QFontEngineBox()

QFontEngineBox::~QFontEngineBox ( )

Definition at line 1532 of file qfontengine.cpp.

◆ QFontEngineBox() [2/2]

QFontEngineBox::QFontEngineBox	(	Type	type,
		int	size
	)

explicitprotected

Definition at line 1525 of file qfontengine.cpp.

References QFontEngine::cache_cost.

Member Function Documentation

◆ addOutlineToPath()

void QFontEngineBox::addOutlineToPath	(	qreal	x,
		qreal	y,
		const QGlyphLayout &	glyphs,
		QPainterPath *	path,
		QTextItem::RenderFlags	flags
	)

overridevirtual

Reimplemented from QFontEngine.

Definition at line 1572 of file qfontengine.cpp.

References QTransform::fromTranslate(), QFontEngine::getGlyphPositions(), QGlyphLayout::numGlyphs, and positions.

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◆ alphaMapForGlyph()

QImage QFontEngineBox::alphaMapForGlyph ( glyph_t glyph )

overridevirtual

Create a qimage with the alpha values for the glyph. Returns an image indexed_8 with index values ranging from 0=fully transparent to 255=opaque

Reimplemented from QFontEngine.

Definition at line 1665 of file qfontengine.cpp.

References QImage::Format_Alpha8, and i.

◆ ascent()

QFixed QFontEngineBox::ascent ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 1634 of file qfontengine.cpp.

◆ boundingBox() [1/2]

glyph_metrics_t QFontEngineBox::boundingBox ( const QGlyphLayout & glyphs )

overridevirtual

Reimplemented from QFontEngine.

Definition at line 1587 of file qfontengine.cpp.

References glyph_metrics_t::height, QGlyphLayout::numGlyphs, glyph_metrics_t::width, and glyph_metrics_t::xoff.

◆ boundingBox() [2/2]

glyph_metrics_t QFontEngineBox::boundingBox ( glyph_t glyph )

overridevirtual

Implements QFontEngine.

Definition at line 1623 of file qfontengine.cpp.

◆ canRender()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 1660 of file qfontengine.cpp.

◆ capHeight()

QFixed QFontEngineBox::capHeight ( ) const

overridevirtual

Implements QFontEngine.

Definition at line 1639 of file qfontengine.cpp.

◆ cloneWithSize()

QFontEngine * QFontEngineBox::cloneWithSize ( qreal pixelSize ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 1628 of file qfontengine.cpp.

◆ descent()

QFixed QFontEngineBox::descent ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 1644 of file qfontengine.cpp.

◆ draw()

void QFontEngineBox::draw	(	QPaintEngine *	p,
		qreal	x,
		qreal	y,
		const QTextItemInt &	si
	)

Definition at line 1596 of file qfontengine.cpp.

References QPainter::drawRect(), QTextItemInt::flags, QTextItemInt::fontEngine, QTransform::fromTranslate(), QFontEngine::getGlyphPositions(), QTextItemInt::glyphs, QFontEngine::lineThickness(), Qt::NoBrush, QGlyphLayout::numGlyphs, painter, QPainter::pen(), positions, QPainter::restore(), QPainter::save(), QPainter::setBrush(), QPainter::setPen(), QPen::setWidthF(), and QVLABaseBase::size().

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◆ glyphIndex()

glyph_t QFontEngineBox::glyphIndex ( uint ucs4 ) const

overridevirtual

Implements QFontEngine.

Definition at line 1536 of file qfontengine.cpp.

References Q_UNUSED.

◆ leading()

QFixed QFontEngineBox::leading ( ) const

overridevirtual

Reimplemented from QFontEngine.

Definition at line 1649 of file qfontengine.cpp.

References QFixed::ceil(), and QFixed::fromReal().

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◆ maxCharWidth()

qreal QFontEngineBox::maxCharWidth ( ) const

overridevirtual

Implements QFontEngine.

Definition at line 1655 of file qfontengine.cpp.

◆ minLeftBearing()

virtual qreal QFontEngineBox::minLeftBearing ( ) const

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 409 of file qfontengine_p.h.

◆ minRightBearing()

virtual qreal QFontEngineBox::minRightBearing ( ) const

inlineoverridevirtual

Reimplemented from QFontEngine.

Definition at line 410 of file qfontengine_p.h.

◆ recalcAdvances()

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

overridevirtual

Reimplemented from QFontEngine.

Definition at line 1566 of file qfontengine.cpp.

References QGlyphLayout::advances, i, and QGlyphLayout::numGlyphs.

Referenced by stringToCMap().

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◆ size()

int QFontEngineBox::size ( ) const

inline

Definition at line 415 of file qfontengine_p.h.

◆ stringToCMap()

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

overridevirtual

Implements QFontEngine.

Definition at line 1542 of file qfontengine.cpp.

References QFontEngine::GlyphIndicesOnly, QGlyphLayout::glyphs, it, QGlyphLayout::numGlyphs, Q_ASSERT, recalcAdvances(), and str.

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Friends And Related Symbol Documentation

◆ QFontPrivate

friend class QFontPrivate

friend

Definition at line 421 of file qfontengine_p.h.

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

qtbase/src/gui/text/qfontengine_p.h
qtbase/src/gui/text/qfontengine.cpp

Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QFontEngineBox() [1/2]

◆ ~QFontEngineBox()

◆ QFontEngineBox() [2/2]

Member Function Documentation

◆ addOutlineToPath()

◆ alphaMapForGlyph()

◆ ascent()

◆ boundingBox() [1/2]

◆ boundingBox() [2/2]

◆ canRender()

◆ capHeight()

◆ cloneWithSize()

◆ descent()

◆ draw()

◆ glyphIndex()

◆ leading()

◆ maxCharWidth()

◆ minLeftBearing()

◆ minRightBearing()

◆ recalcAdvances()

◆ size()

◆ stringToCMap()

Friends And Related Symbol Documentation

◆ QFontPrivate