#include <qfontengine_mac_p.h>

Inheritance diagram for QFontEngineMacMulti:

Classes
struct	ShaperItem

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

virtual void	doKerning (QGlyphLayout *, QTextEngine::ShaperFlags) const

ATSUFontID	macFontID () const

virtual const char *	name () const

	QFontEngineMacMulti (const ATSFontFamilyRef &atsFamily, const ATSFontRef &atsFontRef, const QFontDef &fontDef, bool kerning)

virtual void	recalcAdvances (QGlyphLayout *, QTextEngine::ShaperFlags) const

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

bool	stringToCMap (const QChar str, int len, QGlyphLayout glyphs, int nglyphs, QTextEngine::ShaperFlags flags, unsigned short logClusters, const HB_CharAttributes charAttributes, QScriptItem ) const

virtual	~QFontEngineMacMulti ()

Public Functions inherited from QFontEngineMulti
virtual void	addOutlineToPath (qreal, qreal, const QGlyphLayout &, QPainterPath *, QTextItem::RenderFlags flags)

virtual QImage	alphaMapForGlyph (glyph_t)

virtual QFixed	ascent () const

virtual QFixed	averageCharWidth () const

virtual glyph_metrics_t	boundingBox (const QGlyphLayout &glyphs)

virtual glyph_metrics_t	boundingBox (glyph_t glyph)

virtual QFixed	descent () const

QFontEngine *	engine (int at) const

virtual void	getGlyphBearings (glyph_t glyph, qreal leftBearing=0, qreal rightBearing=0)

virtual QFixed	leading () const

virtual QFixed	lineThickness () const

virtual qreal	maxCharWidth () const

virtual qreal	minLeftBearing () const

virtual qreal	minRightBearing () const

	QFontEngineMulti (int engineCount)

virtual Type	type () const

virtual QFixed	underlinePosition () const

virtual QFixed	xHeight () const

	~QFontEngineMulti ()

Public Functions inherited from QFontEngine
void	addBitmapFontToPath (qreal x, qreal y, const QGlyphLayout &, QPainterPath *, QTextItem::RenderFlags)

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

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

virtual QImage	alphaMapForGlyph (glyph_t glyph, QFixed subPixelPosition)

virtual QImage	alphaMapForGlyph (glyph_t, const QTransform &t)

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

virtual QImage	alphaRGBMapForGlyph (glyph_t, QFixed subPixelPosition, int margin, const QTransform &t)

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

virtual QFontEngine *	cloneWithSize (qreal) const

virtual QFixed	emSquareSize () const

virtual FaceId	faceId () const

void	getGlyphPositions (const QGlyphLayout &glyphs, const QTransform &matrix, QTextItem::RenderFlags flags, QVarLengthArray< glyph_t > &glyphs_out, QVarLengthArray< QFixedPoint > &positions)

virtual HB_Error	getPointInOutline (HB_Glyph glyph, int flags, hb_uint32 point, HB_Fixed xpos, HB_Fixed ypos, hb_uint32 *nPoints)

QByteArray	getSfntTable (uint) const

virtual bool	getSfntTableData (uint, uchar , uint ) const

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

QFontEngineGlyphCache *	glyphCache (void *key, QFontEngineGlyphCache::Type type, const QTransform &transform) const

virtual int	glyphCount () const

HB_Face	harfbuzzFace () const

HB_Font	harfbuzzFont () const

void	loadKerningPairs (QFixed scalingFactor)

virtual Properties	properties () const

	QFontEngine ()

virtual void	removeGlyphFromCache (glyph_t)

void	setGlyphCache (void key, QFontEngineGlyphCache data)

virtual bool	supportsSubPixelPositions () const

virtual int	synthesized () const

glyph_metrics_t	tightBoundingBox (const QGlyphLayout &glyphs)

virtual	~QFontEngine ()

Public Functions inherited from QObject
bool	blockSignals (bool b)
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...

const QObjectList &	children () const
	Returns a list of child objects. More...

bool	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=0, const QObject receiver=0, const char *member=0)

bool	disconnect (const QObject receiver, const char member=0)

void	dumpObjectInfo ()
	Dumps information about signal connections, etc. More...

void	dumpObjectTree ()
	Dumps a tree of children to the debug output. More...

QList< QByteArray >	dynamicPropertyNames () const
	Returns the names of all properties that were dynamically added to the object using setProperty(). More...

virtual bool	event (QEvent *)
	This virtual function receives events to an object and should return true if the event e was recognized and processed. More...

virtual bool	eventFilter (QObject , QEvent )
	Filters events if this object has been installed as an event filter for the watched object. More...

template<typename T >
T	findChild (const QString &aName=QString()) const
	Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...

template<typename T >
QList< T >	findChildren (const QString &aName=QString()) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...

template<typename T >
QList< T >	findChildren (const QRegExp &re) const

bool	inherits (const char *classname) const
	Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...

void	installEventFilter (QObject *)
	Installs an event filter filterObj on this object. More...

bool	isWidgetType () const
	Returns true if the object is a widget; otherwise returns false. More...

void	killTimer (int id)
	Kills the timer with timer identifier, id. More...

virtual const QMetaObject *	metaObject () const
	Returns a pointer to the meta-object of this object. More...

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children. More...

QString	objectName () const

QObject *	parent () const
	Returns a pointer to the parent object. More...

QVariant	property (const char *name) const
	Returns the value of the object's name property. More...

Q_INVOKABLE	QObject (QObject *parent=0)
	Constructs an object with parent object parent. More...

void	removeEventFilter (QObject *)
	Removes an event filter object obj from this object. More...

void	setObjectName (const QString &name)

void	setParent (QObject *)
	Makes the object a child of parent. More...

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value. More...

void	setUserData (uint id, QObjectUserData *data)

bool	signalsBlocked () const
	Returns true if signals are blocked; otherwise returns false. More...

int	startTimer (int interval)
	Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...

QThread *	thread () const
	Returns the thread in which the object lives. More...

QObjectUserData *	userData (uint id) const

virtual	~QObject ()
	Destroys the object, deleting all its child objects. More...

Protected Functions
virtual void	loadEngine (int at)

Protected Functions inherited from QFontEngine
QFixed	lastRightBearing (const QGlyphLayout &glyphs, bool round=false)

Protected Functions inherited from QObject
virtual void	childEvent (QChildEvent *)
	This event handler can be reimplemented in a subclass to receive child events. More...

virtual void	connectNotify (const char *signal)
	This virtual function is called when something has been connected to signal in this object. More...

virtual void	customEvent (QEvent *)
	This event handler can be reimplemented in a subclass to receive custom events. More...

virtual void	disconnectNotify (const char *signal)
	This virtual function is called when something has been disconnected from signal in this object. More...

	QObject (QObjectPrivate &dd, QObject *parent=0)

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal. More...

QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *)
	This event handler can be reimplemented in a subclass to receive timer events for the object. More...

Private Functions
const QFontEngineMac *	engineAt (int i) const

int	fontIndexForFontID (ATSUFontID id) const

bool	stringToCMapInternal (const QChar str, int len, QGlyphLayout glyphs, int nglyphs, QTextEngine::ShaperFlags flags, ShaperItem item) const

Properties
ATSUFontID	fontID

uint	kerning: 1

ATSUStyle	style

ATSUTextLayout	textLayout

CGAffineTransform	transform

Friends
class	QFontEngineMac

Additional Inherited Members
Public Types inherited from QFontEngine
enum	GlyphFormat { Format_None, Format_Render = Format_None, Format_Mono, Format_A8, Format_A32 }

enum	SynthesizedFlags { SynthesizedItalic = 0x1, SynthesizedBold = 0x2, SynthesizedStretch = 0x4 }

enum	Type { Box, Multi, XLFD, Win, Mac, Freetype, QPF1, QPF2, Proxy, S60FontEngine, DirectWrite, TestFontEngine = 0x1000 }

Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. More...

Signals inherited from QObject
void	destroyed (QObject *=0)
	This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...

Static Public Functions inherited from QFontEngine
static QByteArray	convertToPostscriptFontFamilyName (const QByteArray &fontFamily)

static const uchar *	getCMap (const uchar table, uint tableSize, bool isSymbolFont, int *cmapSize)

static quint32	getTrueTypeGlyphIndex (const uchar *cmap, uint unicode)

Static Public Functions inherited from QObject
static bool	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...

static bool	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	Disconnects signal in object sender from method in object receiver. More...

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static uint	registerUserData ()

static QString	tr (const char sourceText, const char comment=0, int n=-1)

static QString	trUtf8 (const char sourceText, const char comment=0, int n=-1)

Public Variables inherited from QFontEngine
uint	cache_cost

int	cache_count

QFontDef	fontDef

uint	fsType: 16

int	glyphFormat

HB_Face	hbFace

HB_FontRec	hbFont

QVector< KernPair >	kerning_pairs

QAtomicInt	ref

bool	symbol

Static Public Variables inherited from QObject
static const QMetaObject	staticMetaObject
	This variable stores the meta-object for the class. More...

Static Protected Functions inherited from QFontEngine
static const QVector< QRgb > &	grayPalette ()

Protected Variables inherited from QFontEngineMulti
QVector< QFontEngine * >	engines

Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Static Protected Variables inherited from QObject
static const QMetaObject	staticQtMetaObject

Related Functions inherited from QObject
T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QRegExp &regExp)()

T *	qobject_cast (QObject *object)

	QObjectList

void *	qt_find_obj_child (QObject parent, const char type, const QString &name)
	Returns a pointer to the object named name that inherits type and with a given parent. More...

Detailed Description

Definition at line 113 of file qfontengine_mac_p.h.

Constructors and Destructors

◆ QFontEngineMacMulti()

QFontEngineMacMulti::QFontEngineMacMulti	(	const ATSFontFamilyRef &	atsFamily,
		const ATSFontRef &	atsFontRef,
		const QFontDef &	fontDef,
		bool	kerning
	)

Definition at line 126 of file qfontengine_mac.mm.

     : QFontEngineMulti(0)
 {
     this->fontDef = fontDef;
     this->kerning = kerning;
 
     // hopefully (CTFontCreateWithName or CTFontCreateWithFontDescriptor) + CTFontCreateCopyWithSymbolicTraits
     // (or CTFontCreateWithQuickdrawInstance)
     FMFontFamily fmFamily;
     FMFontStyle fntStyle = 0;
     fmFamily = FMGetFontFamilyFromATSFontFamilyRef(atsFamily);
     if (fmFamily == kInvalidFontFamily) {
         // Use the ATSFont then...
         fontID = FMGetFontFromATSFontRef(atsFontRef);
     } else {
         if (fontDef.weight >= QFont::Bold)
             fntStyle |= ::bold;
         if (fontDef.style != QFont::StyleNormal)
             fntStyle |= ::italic;
 
         FMFontStyle intrinsicStyle;
         FMFont fnt = 0;
         if (FMGetFontFromFontFamilyInstance(fmFamily, fntStyle, &fnt, &intrinsicStyle) == noErr)
            fontID = FMGetATSFontRefFromFont(fnt);
     }
 
     // CFDictionaryRef, <CTStringAttributes.h>
     OSStatus status;
 
     status = ATSUCreateTextLayout(&textLayout);
     Q_ASSERT(status == noErr);
 
     const int maxAttributeCount = 5;
     ATSUAttributeTag tags[maxAttributeCount + 1];
     ByteCount sizes[maxAttributeCount + 1];
     ATSUAttributeValuePtr values[maxAttributeCount + 1];
     int attributeCount = 0;
 
     Fixed size = FixRatio(fontDef.pixelSize, 1);
     tags[attributeCount] = kATSUSizeTag;
     sizes[attributeCount] = sizeof(size);
     values[attributeCount] = &size;
     ++attributeCount;
 
     tags[attributeCount] = kATSUFontTag;
     sizes[attributeCount] = sizeof(fontID);
     values[attributeCount] = &this->fontID;
     ++attributeCount;
 
     transform = CGAffineTransformIdentity;
     if (fontDef.stretch != 100) {
         transform = CGAffineTransformMakeScale(float(fontDef.stretch) / float(100), 1);
         tags[attributeCount] = kATSUFontMatrixTag;
         sizes[attributeCount] = sizeof(transform);
         values[attributeCount] = &transform;
         ++attributeCount;
     }
 
     status = ATSUCreateStyle(&style);
     Q_ASSERT(status == noErr);
 
     Q_ASSERT(attributeCount < maxAttributeCount + 1);
     status = ATSUSetAttributes(style, attributeCount, tags, sizes, values);
     Q_ASSERT(status == noErr);
 
     QFontEngineMac *fe = new QFontEngineMac(style, fontID, fontDef, this);
     fe->ref.ref();
     engines.append(fe);
 }

◆ ~QFontEngineMacMulti()

QFontEngineMacMulti::~QFontEngineMacMulti ( )

virtual

Definition at line 196 of file qfontengine_mac.mm.

 {
     ATSUDisposeTextLayout(textLayout);
     ATSUDisposeStyle(style);
 
     for (int i = 0; i < engines.count(); ++i) {
         QFontEngineMac *fe = const_cast<QFontEngineMac *>(static_cast<const QFontEngineMac *>(engines.at(i)));
         fe->multiEngine = 0;
         if (!fe->ref.deref())
             delete fe;
     }
     engines.clear();
 }

Functions

◆ canRender()

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

virtual

Reimplemented from QFontEngineMulti.

Definition at line 601 of file qfontengine_mac.mm.

 {
     ATSUSetTextPointerLocation(textLayout, reinterpret_cast<const UniChar *>(string), 0, len, len);
     ATSUSetRunStyle(textLayout, style, 0, len);
 
     OSStatus e = noErr;
     int pos = 0;
     do {
         FMFont substFont = 0;
         UniCharArrayOffset changedOffset = 0;
         UniCharCount changeCount = 0;
 
         // CTFontCreateForString
         e = ATSUMatchFontsToText(textLayout, pos, len - pos,
                                  &substFont, &changedOffset,
                                  &changeCount);
         if (e == kATSUFontsMatched) {
             pos = changedOffset + changeCount;
         } else if (e == kATSUFontsNotMatched) {
             break;
         }
     } while (pos < len && e != noErr);
 
     return e == noErr || e == kATSUFontsMatched;
 }

◆ doKerning()

void QFontEngineMacMulti::doKerning	(	QGlyphLayout *	,
		QTextEngine::ShaperFlags
	)		const

virtual

Reimplemented from QFontEngineMulti.

Definition at line 590 of file qfontengine_mac.mm.

 {
     //Q_ASSERT(false);
 }

◆ engineAt()

const QFontEngineMac* QFontEngineMacMulti::engineAt ( int i ) const

inlineprivate

Definition at line 152 of file qfontengine_mac_p.h.

Referenced by fontIndexForFontID(), and stringToCMapInternal().

153 { return static_cast<const QFontEngineMac *>(engines.at(i)); }

QFontEngineMac

Definition: qfontengine_mac_p.h:52

QVector::at

const T & at(int i) const

Returns the item at index position i in the vector.

Definition: qvector.h:350

QFontEngineMulti::engines

QVector< QFontEngine * > engines

Definition: qfontengine_p.h:435

◆ fontIndexForFontID()

int QFontEngineMacMulti::fontIndexForFontID ( ATSUFontID id ) const

private

Definition at line 356 of file qfontengine_mac.mm.

Referenced by stringToCMapInternal().

 {
     for (int i = 0; i < engines.count(); ++i) {
         if (engineAt(i)->fontID == id)
             return i;
     }
 
     QFontEngineMacMulti *that = const_cast<QFontEngineMacMulti *>(this);
     QFontEngineMac *fe = new QFontEngineMac(style, id, fontDef, that);
     fe->ref.ref();
     that->engines.append(fe);
     return engines.count() - 1;
 }

◆ loadEngine()

void QFontEngineMacMulti::loadEngine ( int at )

protectedvirtual

Implements QFontEngineMulti.

Definition at line 595 of file qfontengine_mac.mm.

 {
     // should never be called!
     Q_ASSERT(false);
 }

◆ macFontID()

ATSUFontID QFontEngineMacMulti::macFontID ( ) const

inline

Definition at line 146 of file qfontengine_mac_p.h.

146 { return fontID; }

QFontEngineMacMulti::fontID

ATSUFontID fontID

Definition: qfontengine_mac_p.h:159

◆ name()

virtual const char* QFontEngineMacMulti::name ( ) const

inlinevirtual

Reimplemented from QFontEngineMulti.

Definition at line 142 of file qfontengine_mac_p.h.

142 { return "ATSUI"; }

◆ recalcAdvances()

void QFontEngineMacMulti::recalcAdvances	(	QGlyphLayout *	,
		QTextEngine::ShaperFlags
	)		const

virtual

This is a callback from harfbuzz. The font engine uses the font-system in use to find out the advances of each glyph and set it on the layout.

Reimplemented from QFontEngineMulti.

Definition at line 583 of file qfontengine_mac.mm.

 {
     Q_ASSERT(false);
     Q_UNUSED(glyphs);
     Q_UNUSED(flags);
 }

◆ stringToCMap() [1/2]

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

virtual

Reimplemented from QFontEngineMulti.

Definition at line 370 of file qfontengine_mac.mm.

 {
     return stringToCMap(str, len, glyphs, nglyphs, flags, /*logClusters=*/0, /*charAttributes=*/0, /*si=*/0);
 }

◆ stringToCMap() [2/2]

bool QFontEngineMacMulti::stringToCMap	(	const QChar *	str,
		int	len,
		QGlyphLayout *	glyphs,
		int *	nglyphs,
		QTextEngine::ShaperFlags	flags,
		unsigned short *	logClusters,
		const HB_CharAttributes *	charAttributes,
		QScriptItem *
	)		const

Definition at line 375 of file qfontengine_mac.mm.

 {
     if (*nglyphs < len) {
         *nglyphs = len;
         return false;
     }
 
     ShaperItem shaperItem;
     shaperItem.string = str;
     shaperItem.from = 0;
     shaperItem.length = len;
     shaperItem.glyphs = *glyphs;
     shaperItem.glyphs.numGlyphs = *nglyphs;
     shaperItem.flags = flags;
     shaperItem.log_clusters = logClusters;
     shaperItem.charAttributes = charAttributes;
 
     const int maxChars = qMax(1,
                               int(SHRT_MAX / maxCharWidth())
                               - 10 // subtract a few to be on the safe side
                              );
     if (len < maxChars || !charAttributes)
         return stringToCMapInternal(str, len, glyphs, nglyphs, flags, &shaperItem);
 
     int charIdx = 0;
     int glyphIdx = 0;
     ShaperItem tmpItem = shaperItem;
 
     do {
         tmpItem.from = shaperItem.from + charIdx;
 
         int charCount = qMin(maxChars, len - charIdx);
 
         int lastWhitespace = tmpItem.from + charCount - 1;
         int lastSoftBreak = lastWhitespace;
         int lastCharStop = lastSoftBreak;
         for (int i = lastCharStop; i >= tmpItem.from; --i) {
             if (tmpItem.charAttributes[i].whiteSpace) {
                 lastWhitespace = i;
                 break;
             } if (tmpItem.charAttributes[i].lineBreakType != HB_NoBreak) {
                 lastSoftBreak = i;
             } if (tmpItem.charAttributes[i].charStop) {
                 lastCharStop = i;
             }
         }
         charCount = qMin(lastWhitespace, qMin(lastSoftBreak, lastCharStop)) - tmpItem.from + 1;
 
         int glyphCount = shaperItem.glyphs.numGlyphs - glyphIdx;
         if (glyphCount <= 0)
             return false;
         tmpItem.length = charCount;
         tmpItem.glyphs = shaperItem.glyphs.mid(glyphIdx, glyphCount);
         tmpItem.log_clusters = shaperItem.log_clusters + charIdx;
         if (!stringToCMapInternal(tmpItem.string + tmpItem.from, tmpItem.length,
                                   &tmpItem.glyphs, &glyphCount, flags,
                                   &tmpItem)) {
             *nglyphs = glyphIdx + glyphCount;
             return false;
     }
         for (int i = 0; i < charCount; ++i)
             tmpItem.log_clusters[i] += glyphIdx;
         glyphIdx += glyphCount;
         charIdx += charCount;
     } while (charIdx < len);
     *nglyphs = glyphIdx;
     glyphs->numGlyphs = glyphIdx;
 
     return true;
 }

◆ stringToCMapInternal()

bool QFontEngineMacMulti::stringToCMapInternal	(	const QChar *	str,
		int	len,
		QGlyphLayout *	glyphs,
		int *	nglyphs,
		QTextEngine::ShaperFlags	flags,
		ShaperItem *	item
	)		const

private

Definition at line 447 of file qfontengine_mac.mm.

Referenced by stringToCMap().

 {
     //qDebug() << "stringToCMap" << QString(str, len);
 
     OSStatus e = noErr;
 
     e = ATSUSetTextPointerLocation(textLayout, (UniChar *)(str), 0, len, len);
     if (e != noErr) {
         qWarning("Qt: internal: %ld: Error ATSUSetTextPointerLocation %s: %d", long(e), __FILE__, __LINE__);
         return false;
     }
 
     QGlyphLayoutInfo nfo;
     nfo.glyphs = glyphs;
     nfo.numGlyphs = nglyphs;
     nfo.callbackCalled = false;
     nfo.flags = flags;
     nfo.shaperItem = shaperItem;
     nfo.styleStrategy = fontDef.styleStrategy;
 
     int prevNumGlyphs = *nglyphs;
 
     QVarLengthArray<int> mappedFonts(len);
     for (int i = 0; i < len; ++i)
         mappedFonts[i] = 0;
     nfo.mappedFonts = mappedFonts.data();
 
     Q_ASSERT(sizeof(void *) <= sizeof(URefCon));
     e = ATSUSetTextLayoutRefCon(textLayout, (URefCon)&nfo);
     if (e != noErr) {
         qWarning("Qt: internal: %ld: Error ATSUSetTextLayoutRefCon %s: %d", long(e), __FILE__, __LINE__);
         return false;
     }
 
     {
         const int maxAttributeCount = 3;
         ATSUAttributeTag tags[maxAttributeCount + 1];
         ByteCount sizes[maxAttributeCount + 1];
         ATSUAttributeValuePtr values[maxAttributeCount + 1];
         int attributeCount = 0;
 
         tags[attributeCount] = kATSULineLayoutOptionsTag;
         ATSLineLayoutOptions layopts = kATSLineHasNoOpticalAlignment
                                        | kATSLineIgnoreFontLeading
                                        | kATSLineNoSpecialJustification // we do kashidas ourselves
                                        | kATSLineDisableAllJustification
                                        ;
 
         if (fontDef.styleStrategy & QFont::NoAntialias)
             layopts |= kATSLineNoAntiAliasing;
 
         if (!kerning)
             layopts |= kATSLineDisableAllKerningAdjustments;
 
         values[attributeCount] = &layopts;
         sizes[attributeCount] = sizeof(layopts);
         ++attributeCount;
 
         tags[attributeCount] = kATSULayoutOperationOverrideTag;
         ATSULayoutOperationOverrideSpecifier spec;
         spec.operationSelector = kATSULayoutOperationPostLayoutAdjustment;
         spec.overrideUPP = atsuPostLayoutCallback;
         values[attributeCount] = &spec;
         sizes[attributeCount] = sizeof(spec);
         ++attributeCount;
 
         // CTWritingDirection
         Boolean direction;
         if (flags & QTextEngine::RightToLeft)
             direction = kATSURightToLeftBaseDirection;
         else
             direction = kATSULeftToRightBaseDirection;
         tags[attributeCount] = kATSULineDirectionTag;
         values[attributeCount] = &direction;
         sizes[attributeCount] = sizeof(direction);
         ++attributeCount;
 
         Q_ASSERT(attributeCount < maxAttributeCount + 1);
         e = ATSUSetLayoutControls(textLayout, attributeCount, tags, sizes, values);
         if (e != noErr) {
             qWarning("Qt: internal: %ld: Error ATSUSetLayoutControls %s: %d", long(e), __FILE__, __LINE__);
             return false;
         }
 
     }
 
     e = ATSUSetRunStyle(textLayout, style, 0, len);
     if (e != noErr) {
         qWarning("Qt: internal: %ld: Error ATSUSetRunStyle %s: %d", long(e), __FILE__, __LINE__);
         return false;
     }
 
     if (!(fontDef.styleStrategy & QFont::NoFontMerging)) {
         int pos = 0;
         do {
             ATSUFontID substFont = 0;
             UniCharArrayOffset changedOffset = 0;
             UniCharCount changeCount = 0;
 
             e = ATSUMatchFontsToText(textLayout, pos, len - pos,
                                      &substFont, &changedOffset,
                                      &changeCount);
             if (e == kATSUFontsMatched) {
                 int fontIdx = fontIndexForFontID(substFont);
                 for (uint i = 0; i < changeCount; ++i)
                     mappedFonts[changedOffset + i] = fontIdx;
                 pos = changedOffset + changeCount;
                 ATSUSetRunStyle(textLayout, engineAt(fontIdx)->style, changedOffset, changeCount);
             } else if (e == kATSUFontsNotMatched) {
                 pos = changedOffset + changeCount;
             }
         } while (pos < len && e != noErr);
     }
     {    // trigger the a layout
         // CFAttributedStringCreate, CTFramesetterCreateWithAttributedString (or perhaps Typesetter)
         Rect rect;
         e = ATSUMeasureTextImage(textLayout, kATSUFromTextBeginning, kATSUToTextEnd,
                                  /*iLocationX =*/ 0, /*iLocationY =*/ 0,
                                  &rect);
         if (e != noErr) {
             qWarning("Qt: internal: %ld: Error ATSUMeasureTextImage %s: %d", long(e), __FILE__, __LINE__);
             return false;
         }
     }
 
     if (!nfo.callbackCalled) {
             qWarning("Qt: internal: %ld: Error ATSUMeasureTextImage did not trigger callback %s: %d", long(e), __FILE__, __LINE__);
             return false;
     }
 
     ATSUClearLayoutCache(textLayout, kATSUFromTextBeginning);
     if (prevNumGlyphs < *nfo.numGlyphs)
         return false;
     return true;
 }

Friends and Related Functions

◆ QFontEngineMac

friend class QFontEngineMac

friend

Definition at line 115 of file qfontengine_mac_p.h.

Referenced by fontIndexForFontID(), and QFontEngineMacMulti().

Properties

◆ fontID

ATSUFontID QFontEngineMacMulti::fontID

private

Definition at line 159 of file qfontengine_mac_p.h.

Referenced by QFontEngineMacMulti().

◆ kerning

uint QFontEngineMacMulti::kerning

private

Definition at line 160 of file qfontengine_mac_p.h.

Referenced by QFontEngineMacMulti(), and stringToCMapInternal().

◆ style

ATSUStyle QFontEngineMacMulti::style

mutableprivate

Definition at line 163 of file qfontengine_mac_p.h.

Referenced by canRender(), fontIndexForFontID(), QFontEngineMacMulti(), stringToCMapInternal(), and ~QFontEngineMacMulti().

◆ textLayout

ATSUTextLayout QFontEngineMacMulti::textLayout

mutableprivate

Definition at line 162 of file qfontengine_mac_p.h.

Referenced by canRender(), QFontEngineMacMulti(), stringToCMapInternal(), and ~QFontEngineMacMulti().

◆ transform

CGAffineTransform QFontEngineMacMulti::transform

private

Definition at line 164 of file qfontengine_mac_p.h.

Referenced by QFontEngineMac::QFontEngineMac(), and QFontEngineMacMulti().

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

/src/gui/text/qfontengine_mac_p.h
/src/gui/text/qfontengine_mac.mm

Classes

Public Functions

Protected Functions

Private Functions

Properties

Friends

Additional Inherited Members

Detailed Description

Constructors and Destructors

◆ QFontEngineMacMulti()

◆ ~QFontEngineMacMulti()

Functions

◆ canRender()

◆ doKerning()

◆ engineAt()

◆ fontIndexForFontID()

◆ loadEngine()

◆ macFontID()

◆ name()

◆ recalcAdvances()

◆ stringToCMap() [1/2]

◆ stringToCMap() [2/2]

◆ stringToCMapInternal()

Friends and Related Functions

◆ QFontEngineMac

Properties

◆ fontID

◆ kerning

◆ style

◆ textLayout

◆ transform