#include <qfontengine_ft_p.h>

Inheritance diagram for QFontEngineFT:

Classes
struct	Glyph

struct	GlyphAndSubPixelPosition

struct	QGlyphSet

Public Types
typedef XGlyphInfo	GlyphInfo

enum	HintStyle { HintNone, HintLight, HintMedium, HintFull }

enum	Scaling { Scaled, Unscaled }

enum	SubpixelAntialiasingType { Subpixel_None, Subpixel_RGB, Subpixel_BGR, Subpixel_VRGB, Subpixel_VBGR }

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

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

virtual glyph_metrics_t	alphaMapBoundingBox (glyph_t glyph, QFixed subPixelPosition, const QTransform &matrix, QFontEngine::GlyphFormat format)

virtual QImage	alphaMapForGlyph (glyph_t g)

virtual QImage	alphaMapForGlyph (glyph_t, QFixed)

virtual QImage	alphaRGBMapForGlyph (glyph_t, QFixed subPixelPosition, int margin, const QTransform &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 glyph_metrics_t	boundingBox (glyph_t glyph, const QTransform &matrix)

Glyph *	cachedGlyph (glyph_t g) const

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

virtual QFontEngine *	cloneWithSize (qreal pixelSize) const

GlyphFormat	defaultGlyphFormat () const

QGlyphSet *	defaultGlyphs ()

HintStyle	defaultHintStyle () const

virtual QFixed	descent () const

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

virtual void	draw (QPaintEngine *, qreal, qreal, const QTextItemInt &)

bool	drawAntialiased () const

virtual QFixed	emSquareSize () const

virtual QFontEngine::FaceId	faceId () const

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

virtual bool	getSfntTableData (uint tag, uchar buffer, uint length) const

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

virtual int	glyphCount () const

bool	init (FaceId faceId, bool antiaalias, GlyphFormat defaultFormat=Format_None, const QByteArray &fontData=QByteArray())

bool	init (FaceId faceId, bool antialias, GlyphFormat format, QFreetypeFace *freetypeFace)

bool	initFromFontEngine (const QFontEngineFT *fontEngine)

bool	invalid () const

bool	isBitmapFont () const

virtual QFixed	leading () const

virtual QFixed	lineThickness () const

Glyph *	loadGlyph (uint glyph, QFixed subPixelPosition, GlyphFormat format=Format_None, bool fetchMetricsOnly=false) const

Glyph *	loadGlyph (QGlyphSet *set, uint glyph, QFixed subPixelPosition, GlyphFormat=Format_None, bool fetchMetricsOnly=false) const

bool	loadGlyphs (QGlyphSet gs, const glyph_t glyphs, int num_glyphs, const QFixedPoint *positions, GlyphFormat format=Format_Render)

QGlyphSet *	loadTransformedGlyphSet (const QTransform &matrix)

FT_Face	lockFace (Scaling scale=Scaled) const

virtual qreal	maxCharWidth () const

virtual qreal	minLeftBearing () const

virtual qreal	minRightBearing () const

virtual const char *	name () const

FT_Face	non_locked_face () const

virtual QFontEngine::Properties	properties () const

	QFontEngineFT (const QFontDef &fd)

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

virtual void	removeGlyphFromCache (glyph_t glyph)

void	setDefaultHintStyle (HintStyle style)

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

QFixed	subPixelPositionForX (QFixed x)

virtual bool	supportsSubPixelPositions () const

virtual int	synthesized () const

virtual Type	type () const

virtual QFixed	underlinePosition () const

void	unlockFace () const

virtual QFixed	xHeight () const

virtual	~QFontEngineFT ()

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

virtual QImage	alphaMapForGlyph (glyph_t, const QTransform &t)

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

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

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

QByteArray	getSfntTable (uint) const

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

HB_Face	harfbuzzFace () const

HB_Font	harfbuzzFont () const

void	loadKerningPairs (QFixed scalingFactor)

	QFontEngine ()

void	setGlyphCache (void key, QFontEngineGlyphCache data)

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 unsigned long	allocateServerGlyphSet ()

void	freeGlyphSets ()

virtual void	freeServerGlyphSet (unsigned long id)

virtual bool	uploadGlyphToServer (QGlyphSet set, uint glyphid, Glyph g, GlyphInfo *info, int glyphDataSize) const

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...

Protected Variables
bool	antialias

bool	canUploadGlyphsToServer

HintStyle	default_hint_style

int	default_load_flags

bool	embeddedbitmap

bool	embolden

QFreetypeFace *	freetype

int	lcdFilterType

SubpixelAntialiasingType	subpixelType

bool	transform

Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Private Functions
int	loadFlags (QGlyphSet *set, GlyphFormat format, int flags, bool &hsubpixel, int &vfactor) const

Properties
GlyphFormat	defaultFormat

QGlyphSet	defaultGlyphSet

QFontEngine::FaceId	face_id

bool	kerning_pairs_loaded

QFixed	lbearing

QFixed	line_thickness

FT_Matrix	matrix

FT_Size_Metrics	metrics

QFixed	rbearing

QList< QGlyphSet >	transformedGlyphSets

QFixed	underline_position

int	xsize

int	ysize

Friends
class	QFontEngineFTRawFont

Additional Inherited Members
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 ()

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 134 of file qfontengine_ft_p.h.

Typedefs

◆ GlyphInfo

typedef XGlyphInfo QFontEngineFT::GlyphInfo

Definition at line 161 of file qfontengine_ft_p.h.

Enumerations

◆ HintStyle

enum QFontEngineFT::HintStyle

Enumerator
HintNone
HintLight
HintMedium
HintFull

Definition at line 309 of file qfontengine_ft_p.h.

                    {
         HintNone,
         HintLight,
         HintMedium,
         HintFull
     };

◆ Scaling

enum QFontEngineFT::Scaling

Enumerator
Scaled
Unscaled

Definition at line 267 of file qfontengine_ft_p.h.

                  {
         Scaled,
         Unscaled
     };

◆ SubpixelAntialiasingType

enum QFontEngineFT::SubpixelAntialiasingType

Enumerator
Subpixel_None
Subpixel_RGB
Subpixel_BGR
Subpixel_VRGB
Subpixel_VBGR

Definition at line 152 of file qfontengine_ft_p.h.

                                   {
         Subpixel_None,
         Subpixel_RGB,
         Subpixel_BGR,
         Subpixel_VRGB,
         Subpixel_VBGR
     };

Constructors and Destructors

◆ QFontEngineFT()

QFontEngineFT::QFontEngineFT ( const QFontDef & fd )

Definition at line 624 of file qfontengine_ft.cpp.

Referenced by cloneWithSize().

 {
     fontDef = fd;
     matrix.xx = 0x10000;
     matrix.yy = 0x10000;
     matrix.xy = 0;
     matrix.yx = 0;
     cache_cost = 100;
     kerning_pairs_loaded = false;
     transform = false;
     embolden = false;
     antialias = true;
     freetype = 0;
     default_load_flags = FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH;
     default_hint_style = HintNone;
     subpixelType = Subpixel_None;
     lcdFilterType = 0;
 #if defined(FT_LCD_FILTER_H)
     lcdFilterType = (int)((quintptr) FT_LCD_FILTER_DEFAULT);
 #endif
     defaultFormat = Format_None;
     canUploadGlyphsToServer = false;
     embeddedbitmap = false;
 }

◆ ~QFontEngineFT()

QFontEngineFT::~QFontEngineFT ( )

virtual

Definition at line 649 of file qfontengine_ft.cpp.

 {
     if (freetype)
         freetype->release(face_id);
     hbFace = 0; // we share the face in QFreeTypeFace, don't let ~QFontEngine delete it
 }

Functions

◆ addGlyphsToPath()

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

virtual

Reimplemented from QFontEngine.

Definition at line 1483 of file qfontengine_ft.cpp.

 {
     FT_Face face = lockFace(Unscaled);
 
     for (int gl = 0; gl < numGlyphs; gl++) {
         FT_UInt glyph = glyphs[gl];
 
         FT_Load_Glyph(face, glyph, FT_LOAD_NO_BITMAP);
 
         FT_GlyphSlot g = face->glyph;
         if (g->format != FT_GLYPH_FORMAT_OUTLINE)
             continue;
         QFreetypeFace::addGlyphToPath(face, g, positions[gl], path, xsize, ysize);
     }
     unlockFace();
 }

◆ addOutlineToPath()

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

virtual

Reimplemented from QFontEngine.

Definition at line 1459 of file qfontengine_ft.cpp.

 {
     if (!glyphs.numGlyphs)
         return;
 
     if (FT_IS_SCALABLE(freetype->face)) {
         QFontEngine::addOutlineToPath(x, y, glyphs, path, flags);
     } else {
         QVarLengthArray<QFixedPoint> positions;
         QVarLengthArray<glyph_t> positioned_glyphs;
         QTransform matrix;
         matrix.translate(x, y);
         getGlyphPositions(glyphs, matrix, flags, positioned_glyphs, positions);
 
         FT_Face face = lockFace(Unscaled);
         for (int gl = 0; gl < glyphs.numGlyphs; gl++) {
             FT_UInt glyph = positioned_glyphs[gl];
             FT_Load_Glyph(face, glyph, FT_LOAD_TARGET_MONO);
             freetype->addBitmapToPath(face->glyph, positions[gl], path);
         }
         unlockFace();
     }
 }

◆ allocateServerGlyphSet()

unsigned long QFontEngineFT::allocateServerGlyphSet ( )

protectedvirtual

Reimplemented in QFontEngineX11FT.

Definition at line 1954 of file qfontengine_ft.cpp.

 {
     return 0;
 }

◆ alphaMapBoundingBox()

glyph_metrics_t QFontEngineFT::alphaMapBoundingBox	(	glyph_t	glyph,
		QFixed	subPixelPosition,
		const QTransform &	matrix,
		QFontEngine::GlyphFormat	format
	)

virtual

Reimplemented from QFontEngine.

Definition at line 1713 of file qfontengine_ft.cpp.

 {
     FT_Face face = 0;
     glyph_metrics_t overall;
     QGlyphSet *glyphSet = 0;
     if (matrix.type() > QTransform::TxTranslate && FT_IS_SCALABLE(freetype->face)) {
         // TODO move everything here to a method of its own to access glyphSets
         // to be shared with a new method that will replace loadTransformedGlyphSet()
         FT_Matrix m;
         m.xx = FT_Fixed(matrix.m11() * 65536);
         m.xy = FT_Fixed(-matrix.m21() * 65536);
         m.yx = FT_Fixed(-matrix.m12() * 65536);
         m.yy = FT_Fixed(matrix.m22() * 65536);
         for (int i = 0; i < transformedGlyphSets.count(); ++i) {
             const QGlyphSet &g = transformedGlyphSets.at(i);
             if (g.transformationMatrix.xx == m.xx
                 && g.transformationMatrix.xy == m.xy
                 && g.transformationMatrix.yx == m.yx
                 && g.transformationMatrix.yy == m.yy) {
 
                 // found a match, move it to the front
                 transformedGlyphSets.move(i, 0);
                 glyphSet = &transformedGlyphSets[0];
                 break;
             }
         }
 
         if (!glyphSet) {
             // don't cache more than 10 transformations
             if (transformedGlyphSets.count() >= 10) {
                 transformedGlyphSets.move(transformedGlyphSets.size() - 1, 0);
                 freeServerGlyphSet(transformedGlyphSets.at(0).id);
             } else {
                 transformedGlyphSets.prepend(QGlyphSet());
             }
             glyphSet = &transformedGlyphSets[0];
             glyphSet->clear();
             glyphSet->id = allocateServerGlyphSet();
             glyphSet->transformationMatrix = m;
         }
         Q_ASSERT(glyphSet);
     } else {
         glyphSet = &defaultGlyphSet;
     }
     Glyph * g = glyphSet->getGlyph(glyph);
     if (!g || g->format != format) {
         face = lockFace();
         FT_Matrix m = this->matrix;
         FT_Matrix_Multiply(&glyphSet->transformationMatrix, &m);
         freetype->matrix = m;
         g = loadGlyph(glyphSet, glyph, subPixelPosition, format);
     }
 
     if (g) {
         overall.x = g->x;
         overall.y = -g->y;
         overall.width = g->width;
         overall.height = g->height;
         overall.xoff = g->advance;
     } else {
         int left  = FLOOR(face->glyph->metrics.horiBearingX);
         int right = CEIL(face->glyph->metrics.horiBearingX + face->glyph->metrics.width);
         int top    = CEIL(face->glyph->metrics.horiBearingY);
         int bottom = FLOOR(face->glyph->metrics.horiBearingY - face->glyph->metrics.height);
 
         overall.width = TRUNC(right-left);
         overall.height = TRUNC(top-bottom);
         overall.x = TRUNC(left);
         overall.y = -TRUNC(top);
         overall.xoff = TRUNC(ROUND(face->glyph->advance.x));
     }
     if (face)
         unlockFace();
     return overall;
 }

◆ alphaMapForGlyph() [1/2]

virtual QImage QFontEngineFT::alphaMapForGlyph ( glyph_t glyph )

inlinevirtual

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 256 of file qfontengine_ft_p.h.

Referenced by alphaMapForGlyph().

256 { return alphaMapForGlyph(g, 0); }

QFontEngineFT::alphaMapForGlyph

virtual QImage alphaMapForGlyph(glyph_t g)

Definition: qfontengine_ft_p.h:256

◆ alphaMapForGlyph() [2/2]

QImage QFontEngineFT::alphaMapForGlyph	(	glyph_t	g,
		QFixed	subPixelPosition
	)

virtual

Reimplemented from QFontEngine.

Definition at line 1789 of file qfontengine_ft.cpp.

 {
     lockFace();
 
     GlyphFormat glyph_format = antialias ? Format_A8 : Format_Mono;
 
     Glyph *glyph = defaultGlyphSet.outline_drawing ? 0 : loadGlyph(g, subPixelPosition, glyph_format);
     if (!glyph) {
         unlockFace();
         return QFontEngine::alphaMapForGlyph(g);
     }
 
     const int pitch = antialias ? (glyph->width + 3) & ~3 : ((glyph->width + 31)/32) * 4;
 
     QImage img(glyph->width, glyph->height, antialias ? QImage::Format_Indexed8 : QImage::Format_Mono);
     if (antialias) {
         QVector<QRgb> colors(256);
         for (int i=0; i<256; ++i)
             colors[i] = qRgba(0, 0, 0, i);
         img.setColorTable(colors);
     } else {
         QVector<QRgb> colors(2);
         colors[0] = qRgba(0, 0, 0, 0);
         colors[1] = qRgba(0, 0, 0, 255);
         img.setColorTable(colors);
     }
     Q_ASSERT(img.bytesPerLine() == pitch);
     if (glyph->width) {
         for (int y = 0; y < glyph->height; ++y)
             memcpy(img.scanLine(y), &glyph->data[y * pitch], pitch);
     }
     unlockFace();
 
     return img;
 }

◆ alphaRGBMapForGlyph()

QImage QFontEngineFT::alphaRGBMapForGlyph	(	glyph_t	g,
		QFixed	subPixelPosition,
		int	margin,
		const QTransform &	t
	)

virtual

Reimplemented from QFontEngine.

Definition at line 1825 of file qfontengine_ft.cpp.

 {
     if (t.type() > QTransform::TxTranslate)
         return QFontEngine::alphaRGBMapForGlyph(g, subPixelPosition, margin, t);
 
     lockFace();
 
     GlyphFormat glyph_format = Format_A32;
 
     Glyph *glyph = defaultGlyphSet.outline_drawing ? 0 : loadGlyph(g, subPixelPosition, glyph_format);
     if (!glyph) {
         unlockFace();
         return QFontEngine::alphaRGBMapForGlyph(g, subPixelPosition, margin, t);
     }
 
     QImage img(glyph->width, glyph->height, QImage::Format_RGB32);
     memcpy(img.bits(), glyph->data, 4 * glyph->width * glyph->height);
     unlockFace();
 
     return img;
 }

◆ ascent()

QFixed QFontEngineFT::ascent ( ) const

virtual

Implements QFontEngine.

Definition at line 1170 of file qfontengine_ft.cpp.

 {
     return QFixed::fromFixed(metrics.ascender);
 }

◆ averageCharWidth()

QFixed QFontEngineFT::averageCharWidth ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1198 of file qfontengine_ft.cpp.

 {
     TT_OS2 *os2 = (TT_OS2 *)FT_Get_Sfnt_Table(freetype->face, ft_sfnt_os2);
     if (os2 && os2->xAvgCharWidth) {
         lockFace();
         QFixed answer = QFixed(os2->xAvgCharWidth*freetype->face->size->metrics.x_ppem)/freetype->face->units_per_EM;
         unlockFace();
         return answer;
     }
     return QFontEngine::averageCharWidth();
 }

◆ boundingBox() [1/3]

glyph_metrics_t QFontEngineFT::boundingBox ( const QGlyphLayout & glyphs )

virtual

Implements QFontEngine.

Definition at line 1623 of file qfontengine_ft.cpp.

 {
 
     FT_Face face = 0;
 
     glyph_metrics_t overall;
     // initialize with line height, we get the same behaviour on all platforms
     overall.y = -ascent();
     overall.height = ascent() + descent() + 1;
 
     QFixed ymax = 0;
     QFixed xmax = 0;
     for (int i = 0; i < glyphs.numGlyphs; i++) {
         Glyph *g = defaultGlyphSet.getGlyph(glyphs.glyphs[i]);
         if (!g) {
             if (!face)
                 face = lockFace();
             g = loadGlyph(glyphs.glyphs[i], 0, Format_None, true);
         }
         if (g) {
             QFixed x = overall.xoff + glyphs.offsets[i].x + g->x;
             QFixed y = overall.yoff + glyphs.offsets[i].y - g->y;
             overall.x = qMin(overall.x, x);
             overall.y = qMin(overall.y, y);
             xmax = qMax(xmax, x + g->width);
             ymax = qMax(ymax, y + g->height);
             overall.xoff += qRound(g->advance);
         } else {
             int left  = FLOOR(face->glyph->metrics.horiBearingX);
             int right = CEIL(face->glyph->metrics.horiBearingX + face->glyph->metrics.width);
             int top    = CEIL(face->glyph->metrics.horiBearingY);
             int bottom = FLOOR(face->glyph->metrics.horiBearingY - face->glyph->metrics.height);
 
             QFixed x = overall.xoff + glyphs.offsets[i].x - (-TRUNC(left));
             QFixed y = overall.yoff + glyphs.offsets[i].y - TRUNC(top);
             overall.x = qMin(overall.x, x);
             overall.y = qMin(overall.y, y);
             xmax = qMax(xmax, x + TRUNC(right - left));
             ymax = qMax(ymax, y + TRUNC(top - bottom));
             overall.xoff += qRound(TRUNC(ROUND(face->glyph->advance.x)));
         }
     }
     overall.height = qMax(overall.height, ymax - overall.y);
     overall.width = xmax - overall.x;
 
     if (face)
         unlockFace();
 
     return overall;
 }

◆ boundingBox() [2/3]

glyph_metrics_t QFontEngineFT::boundingBox ( glyph_t glyph )

virtual

Implements QFontEngine.

Definition at line 1674 of file qfontengine_ft.cpp.

 {
     FT_Face face = 0;
     glyph_metrics_t overall;
     Glyph *g = defaultGlyphSet.getGlyph(glyph);
     if (!g) {
         face = lockFace();
         g = loadGlyph(glyph, 0, Format_None, true);
     }
     if (g) {
         overall.x = g->x;
         overall.y = -g->y;
         overall.width = g->width;
         overall.height = g->height;
         overall.xoff = g->advance;
         if (fontDef.styleStrategy & QFont::ForceIntegerMetrics)
             overall.xoff = overall.xoff.round();
     } else {
         int left  = FLOOR(face->glyph->metrics.horiBearingX);
         int right = CEIL(face->glyph->metrics.horiBearingX + face->glyph->metrics.width);
         int top    = CEIL(face->glyph->metrics.horiBearingY);
         int bottom = FLOOR(face->glyph->metrics.horiBearingY - face->glyph->metrics.height);
 
         overall.width = TRUNC(right-left);
         overall.height = TRUNC(top-bottom);
         overall.x = TRUNC(left);
         overall.y = -TRUNC(top);
         overall.xoff = TRUNC(ROUND(face->glyph->advance.x));
     }
     if (face)
         unlockFace();
     return overall;
 }

◆ boundingBox() [3/3]

glyph_metrics_t QFontEngineFT::boundingBox	(	glyph_t	glyph,
		const QTransform &	matrix
	)

virtual

Reimplemented from QFontEngine.

Definition at line 1708 of file qfontengine_ft.cpp.

 {
     return alphaMapBoundingBox(glyph, 0, matrix, QFontEngine::Format_None);
 }

◆ cachedGlyph()

Glyph* QFontEngineFT::cachedGlyph ( glyph_t g ) const

inline

Definition at line 287 of file qfontengine_ft_p.h.

Referenced by QX11PaintEngine::drawFreetype().

287 { return defaultGlyphSet.getGlyph(g, 0); }

QFontEngineFT::defaultGlyphSet

QGlyphSet defaultGlyphSet

Definition: qfontengine_ft_p.h:353

QFontEngineFT::QGlyphSet::getGlyph

Glyph * getGlyph(glyph_t index, QFixed subPixelPosition=0) const

Definition: qfontengine_ft_p.h:374

◆ canRender()

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

virtual

Implements QFontEngine.

Definition at line 1433 of file qfontengine_ft.cpp.

 {
     FT_Face face = freetype->face;
 #if 0
     if (_cmap != -1) {
         lockFace();
         for ( int i = 0; i < len; i++ ) {
             unsigned int uc = getChar(string, i, len);
             if (!FcCharSetHasChar (_font->charset, uc) && getAdobeCharIndex(face, _cmap, uc) == 0) {
                 allExist = false;
                 break;
             }
         }
         unlockFace();
     } else
 #endif
     {
         for ( int i = 0; i < len; i++ ) {
             unsigned int uc = getChar(string, i, len);
             if (!FT_Get_Char_Index(face, uc))
                     return false;
         }
     }
     return true;
 }

◆ cloneWithSize()

QFontEngine * QFontEngineFT::cloneWithSize ( qreal pixelSize ) const

virtual

Reimplemented from QFontEngine.

Reimplemented in QFontEngineX11FT.

Definition at line 1997 of file qfontengine_ft.cpp.

 {
     QFontDef fontDef;
     fontDef.pixelSize = pixelSize;
     QFontEngineFT *fe = new QFontEngineFT(fontDef);
     if (!fe->initFromFontEngine(this)) {
         delete fe;
         return 0;
     } else {
         return fe;
     }
 }

◆ defaultGlyphFormat()

GlyphFormat QFontEngineFT::defaultGlyphFormat ( ) const

inline

Definition at line 285 of file qfontengine_ft_p.h.

Referenced by QRasterPaintEngine::drawCachedGlyphs().

285 { return defaultFormat; }

QFontEngineFT::defaultFormat

GlyphFormat defaultFormat

Definition: qfontengine_ft_p.h:349

◆ defaultGlyphs()

QGlyphSet* QFontEngineFT::defaultGlyphs ( )

inline

Definition at line 284 of file qfontengine_ft_p.h.

Referenced by QRasterPaintEngine::drawCachedGlyphs(), QX11PaintEngine::drawFreetype(), and loadSingleEngine().

284 { return &defaultGlyphSet; }

QFontEngineFT::defaultGlyphSet

QGlyphSet defaultGlyphSet

Definition: qfontengine_ft_p.h:353

◆ defaultHintStyle()

HintStyle QFontEngineFT::defaultHintStyle ( ) const

inline

Definition at line 321 of file qfontengine_ft_p.h.

Referenced by QTextLine::glyphs().

321 { return default_hint_style; }

QFontEngineFT::default_hint_style

HintStyle default_hint_style

Definition: qfontengine_ft_p.h:334

◆ descent()

QFixed QFontEngineFT::descent ( ) const

virtual

Implements QFontEngine.

Definition at line 1175 of file qfontengine_ft.cpp.

 {
     // subtract a pixel to work around QFontMetrics's built-in + 1
     return QFixed::fromFixed(-metrics.descender - 64);
 }

◆ doKerning()

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

virtual

Reimplemented from QFontEngine.

Definition at line 1275 of file qfontengine_ft.cpp.

 {
     if (!kerning_pairs_loaded) {
         kerning_pairs_loaded = true;
         lockFace();
         if (freetype->face->size->metrics.x_ppem != 0) {
             QFixed scalingFactor(freetype->face->units_per_EM/freetype->face->size->metrics.x_ppem);
             unlockFace();
             const_cast<QFontEngineFT *>(this)->loadKerningPairs(scalingFactor);
         } else {
             unlockFace();
         }
     }
     QFontEngine::doKerning(g, flags);
 }

◆ draw()

virtual void QFontEngineFT::draw	(	QPaintEngine *	,
		qreal	,
		qreal	,
		const QTextItemInt &
	)

inlinevirtual

Definition at line 296 of file qfontengine_ft_p.h.

296 {}

◆ drawAntialiased()

bool QFontEngineFT::drawAntialiased ( ) const

inline

Definition at line 276 of file qfontengine_ft_p.h.

Referenced by qgl_use_font().

276 { return antialias; }

QFontEngineFT::antialias

bool antialias

Definition: qfontengine_ft_p.h:336

◆ emSquareSize()

QFixed QFontEngineFT::emSquareSize ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1145 of file qfontengine_ft.cpp.

 {
     if (FT_IS_SCALABLE(freetype->face))
         return freetype->face->units_per_EM;
     else
         return freetype->face->size->metrics.y_ppem;
 }

◆ faceId()

QFontEngine::FaceId QFontEngineFT::faceId ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1130 of file qfontengine_ft.cpp.

Referenced by QFontEngineFTRawFont::initFromData(), and initFromFontEngine().

 {
     return face_id;
 }

◆ freeGlyphSets()

void QFontEngineFT::freeGlyphSets ( )

protected

Definition at line 656 of file qfontengine_ft.cpp.

Referenced by QFontEngineX11FT::~QFontEngineX11FT().

 {
     freeServerGlyphSet(defaultGlyphSet.id);
     for (int i = 0; i < transformedGlyphSets.count(); ++i)
         freeServerGlyphSet(transformedGlyphSets.at(i).id);
 }

◆ freeServerGlyphSet()

void QFontEngineFT::freeServerGlyphSet ( unsigned long id )

protectedvirtual

Reimplemented in QFontEngineX11FT.

Definition at line 1959 of file qfontengine_ft.cpp.

 {
     Q_UNUSED(id);
 }

◆ getPointInOutline()

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

virtual

Reimplemented from QFontEngine.

Definition at line 1964 of file qfontengine_ft.cpp.

 {
     lockFace();
     bool hsubpixel = true;
     int vfactor = 1;
     int load_flags = loadFlags(0, Format_A8, flags, hsubpixel, vfactor);
     HB_Error result = freetype->getPointInOutline(glyph, load_flags, point, xpos, ypos, nPoints);
     unlockFace();
     return result;
 }

◆ getSfntTableData()

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

virtual

Reimplemented from QFontEngine.

Definition at line 1153 of file qfontengine_ft.cpp.

 {
     return freetype->getSfntTable(tag, buffer, length);
 }

◆ getUnscaledGlyph()

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

virtual

Reimplemented from QFontEngine.

Definition at line 1393 of file qfontengine_ft.cpp.

 {
     FT_Face face = lockFace(Unscaled);
     FT_Set_Transform(face, 0, 0);
     FT_Load_Glyph(face, glyph, FT_LOAD_NO_BITMAP);
 
     int left  = face->glyph->metrics.horiBearingX;
     int right = face->glyph->metrics.horiBearingX + face->glyph->metrics.width;
     int top    = face->glyph->metrics.horiBearingY;
     int bottom = face->glyph->metrics.horiBearingY - face->glyph->metrics.height;
 
     QFixedPoint p;
     p.x = 0;
     p.y = 0;
 
     metrics->width = QFixed::fromFixed(right-left);
     metrics->height = QFixed::fromFixed(top-bottom);
     metrics->x = QFixed::fromFixed(left);
     metrics->y = QFixed::fromFixed(-top);
     metrics->xoff = QFixed::fromFixed(face->glyph->advance.x);
 
     if (!FT_IS_SCALABLE(freetype->face))
         QFreetypeFace::addBitmapToPath(face->glyph, p, path);
     else
         QFreetypeFace::addGlyphToPath(face, face->glyph, p, path, face->units_per_EM << 6, face->units_per_EM << 6);
 
     FT_Set_Transform(face, &freetype->matrix, 0);
     unlockFace();
 }

◆ glyphCount()

int QFontEngineFT::glyphCount ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1852 of file qfontengine_ft.cpp.

 {
     int count = 0;
     FT_Face face = lockFace();
     if (face) {
         count = face->num_glyphs;
         unlockFace();
     }
     return count;
 }

◆ init() [1/2]

bool QFontEngineFT::init	(	FaceId	faceId,
		bool	antiaalias,
		GlyphFormat	defaultFormat = `Format_None`,
		const QByteArray &	fontData = `QByteArray()`
	)

Definition at line 663 of file qfontengine_ft.cpp.

Referenced by QFontconfigDatabase::fontEngine(), QBasicUnixFontDatabase::fontEngine(), initFromFontEngine(), and loadSingleEngine().

 {
     return init(faceId, antialias, format, QFreetypeFace::getFace(faceId, fontData));
 }

◆ init() [2/2]

bool QFontEngineFT::init	(	FaceId	faceId,
		bool	antialias,
		GlyphFormat	format,
		QFreetypeFace *	freetypeFace
	)

Definition at line 669 of file qfontengine_ft.cpp.

 {
     freetype = freetypeFace;
     if (!freetype) {
         xsize = 0;
         ysize = 0;
         return false;
     }
     defaultFormat = format;
     this->antialias = antialias;
 
     if (!antialias)
         glyphFormat = QFontEngineGlyphCache::Raster_Mono;
     else if (format == Format_A8)
         glyphFormat = QFontEngineGlyphCache::Raster_A8;
     else if (format == Format_A32)
         glyphFormat = QFontEngineGlyphCache::Raster_RGBMask;
 
     face_id = faceId;
 
     symbol = freetype->symbol_map != 0;
     PS_FontInfoRec psrec;
     // don't assume that type1 fonts are symbol fonts by default
     if (FT_Get_PS_Font_Info(freetype->face, &psrec) == FT_Err_Ok) {
         symbol = bool(fontDef.family.contains(QLatin1String("symbol"), Qt::CaseInsensitive));
     }
     // #####
     freetype->hbFace->isSymbolFont = symbol;
 
     lbearing = rbearing = SHRT_MIN;
     freetype->computeSize(fontDef, &xsize, &ysize, &defaultGlyphSet.outline_drawing);
 
     FT_Face face = lockFace();
 
     if (FT_IS_SCALABLE(face)) {
         bool fake_oblique = (fontDef.style != QFont::StyleNormal) && !(face->style_flags & FT_STYLE_FLAG_ITALIC);
         if (fake_oblique)
             matrix.xy = 0x10000*3/10;
         FT_Set_Transform(face, &matrix, 0);
         freetype->matrix = matrix;
         if (fake_oblique)
             transform = true;
         // fake bold
         if ((fontDef.weight == QFont::Bold) && !(face->style_flags & FT_STYLE_FLAG_BOLD) && !FT_IS_FIXED_WIDTH(face))
             embolden = true;
         // underline metrics
         line_thickness =  QFixed::fromFixed(FT_MulFix(face->underline_thickness, face->size->metrics.y_scale));
         underline_position = QFixed::fromFixed(-FT_MulFix(face->underline_position, face->size->metrics.y_scale));
     } else {
         // copied from QFontEngineQPF
         // ad hoc algorithm
         int score = fontDef.weight * fontDef.pixelSize;
         line_thickness = score / 700;
         // looks better with thicker line for small pointsizes
         if (line_thickness < 2 && score >= 1050)
             line_thickness = 2;
         underline_position =  ((line_thickness * 2) + 3) / 6;
     }
     if (line_thickness < 1)
         line_thickness = 1;
 
     hbFont.x_ppem  = face->size->metrics.x_ppem;
     hbFont.y_ppem  = face->size->metrics.y_ppem;
     hbFont.x_scale = face->size->metrics.x_scale;
     hbFont.y_scale = face->size->metrics.y_scale;
 
     hbFace = freetype->hbFace;
 
     metrics = face->size->metrics;
 
 #if defined(Q_WS_QWS) || defined(Q_WS_QPA)
     /*
        TrueType fonts with embedded bitmaps may have a bitmap font specific
        ascent/descent in the EBLC table. There is no direct public API
        to extract those values. The only way we've found is to trick freetype
        into thinking that it's not a scalable font in FT_SelectSize so that
        the metrics are retrieved from the bitmap strikes.
     */
     if (FT_IS_SCALABLE(face)) {
         for (int i = 0; i < face->num_fixed_sizes; ++i) {
             if (xsize == X_SIZE(face, i) && ysize == Y_SIZE(face, i)) {
                 face->face_flags &= ~FT_FACE_FLAG_SCALABLE;
 
                 FT_Select_Size(face, i);
                 metrics.ascender = face->size->metrics.ascender;
                 metrics.descender = face->size->metrics.descender;
                 FT_Set_Char_Size(face, xsize, ysize, 0, 0);
 
                 face->face_flags |= FT_FACE_FLAG_SCALABLE;
                 break;
             }
         }
     }
 #endif
 
     fontDef.styleName = QString::fromUtf8(face->style_name);
 
     unlockFace();
 
     fsType = freetype->fsType();
     defaultGlyphSet.id = allocateServerGlyphSet();
     return true;
 }

◆ initFromFontEngine()

bool QFontEngineFT::initFromFontEngine ( const QFontEngineFT * fontEngine )

Definition at line 1975 of file qfontengine_ft.cpp.

Referenced by QFontEngineX11FT::cloneWithSize(), and cloneWithSize().

 {
     if (!init(fe->faceId(), fe->antialias, fe->defaultFormat, fe->freetype))
         return false;
 
     // Increase the reference of this QFreetypeFace since one more QFontEngineFT
     // will be using it
     freetype->ref.ref();
 
     default_load_flags = fe->default_load_flags;
     default_hint_style = fe->default_hint_style;
     antialias = fe->antialias;
     transform = fe->transform;
     embolden = fe->embolden;
     subpixelType = fe->subpixelType;
     lcdFilterType = fe->lcdFilterType;
     canUploadGlyphsToServer = fe->canUploadGlyphsToServer;
     embeddedbitmap = fe->embeddedbitmap;
 
     return true;
 }

◆ invalid()

bool QFontEngineFT::invalid ( ) const

inline

Definition at line 277 of file qfontengine_ft_p.h.

Referenced by engineForPattern(), QFontconfigDatabase::fontEngine(), QBasicUnixFontDatabase::fontEngine(), and tryPatternLoad().

277 { return xsize == 0 && ysize == 0; }

QFontEngineFT::ysize

int ysize

Definition: qfontengine_ft_p.h:358

QFontEngineFT::xsize

int xsize

Definition: qfontengine_ft_p.h:357

◆ isBitmapFont()

bool QFontEngineFT::isBitmapFont ( ) const

inline

Definition at line 278 of file qfontengine_ft_p.h.

Referenced by QRasterPaintEngine::drawCachedGlyphs().

278 { return defaultFormat == Format_Mono; }

QFontEngineFT::defaultFormat

GlyphFormat defaultFormat

Definition: qfontengine_ft_p.h:349

QFontEngine::Format_Mono

Definition: qfontengine_p.h:128

◆ leading()

QFixed QFontEngineFT::leading ( ) const

virtual

Implements QFontEngine.

Definition at line 1181 of file qfontengine_ft.cpp.

 {
     return QFixed::fromFixed(metrics.height - metrics.ascender + metrics.descender);
 }

◆ lineThickness()

QFixed QFontEngineFT::lineThickness ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1265 of file qfontengine_ft.cpp.

 {
     return line_thickness;
 }

◆ loadFlags()

int QFontEngineFT::loadFlags	(	QGlyphSet *	set,
		GlyphFormat	format,
		int	flags,
		bool &	hsubpixel,
		int &	vfactor
	)		const

private

Definition at line 779 of file qfontengine_ft.cpp.

Referenced by getPointInOutline().

 {
     int load_flags = FT_LOAD_DEFAULT | default_load_flags;
     int load_target = default_hint_style == HintLight
                       ? FT_LOAD_TARGET_LIGHT
                       : FT_LOAD_TARGET_NORMAL;
 
     if (format == Format_Mono) {
         load_target = FT_LOAD_TARGET_MONO;
     } else if (format == Format_A32) {
         if (subpixelType == QFontEngineFT::Subpixel_RGB || subpixelType == QFontEngineFT::Subpixel_BGR) {
             if (default_hint_style == HintFull)
                 load_target = FT_LOAD_TARGET_LCD;
             hsubpixel = true;
         } else if (subpixelType == QFontEngineFT::Subpixel_VRGB || subpixelType == QFontEngineFT::Subpixel_VBGR) {
             if (default_hint_style == HintFull)
                 load_target = FT_LOAD_TARGET_LCD_V;
             vfactor = 3;
         }
     }
 
     if (set && set->outline_drawing)
         load_flags = FT_LOAD_NO_BITMAP;
 
     if (default_hint_style == HintNone || (flags & HB_ShaperFlag_UseDesignMetrics) || (set && set->outline_drawing))
         load_flags |= FT_LOAD_NO_HINTING;
     else
         load_flags |= load_target;
 
     return load_flags;
 }

◆ loadGlyph() [1/2]

Glyph* QFontEngineFT::loadGlyph	(	uint	glyph,
		QFixed	subPixelPosition,
		GlyphFormat	format = `Format_None`,
		bool	fetchMetricsOnly = `false`
	)		const

inline

Definition at line 280 of file qfontengine_ft_p.h.

Referenced by QRasterPaintEngine::drawCachedGlyphs(), and path_for_glyphs().

281 { return loadGlyph(&defaultGlyphSet, glyph, subPixelPosition, format, fetchMetricsOnly); }

QFontEngineFT::defaultGlyphSet

QGlyphSet defaultGlyphSet

Definition: qfontengine_ft_p.h:353

format

Definition: qprintengine_ps.cpp:286

QFontEngineFT::loadGlyph

Glyph * loadGlyph(uint glyph, QFixed subPixelPosition, GlyphFormat format=Format_None, bool fetchMetricsOnly=false) const

Definition: qfontengine_ft_p.h:280

◆ loadGlyph() [2/2]

QFontEngineFT::Glyph * QFontEngineFT::loadGlyph	(	QGlyphSet *	set,
		uint	glyph,
		QFixed	subPixelPosition,
		GlyphFormat	format = `Format_None`,
		bool	fetchMetricsOnly = `false`
	)		const

Definition at line 812 of file qfontengine_ft.cpp.

 {
 //     Q_ASSERT(freetype->lock == 1);
 
     bool uploadToServer = false;
     if (format == Format_None) {
         if (defaultFormat != Format_None) {
             format = defaultFormat;
             if (canUploadGlyphsToServer)
                 uploadToServer = true;
         } else {
             format = Format_Mono;
         }
     }
 
     Glyph *g = set->getGlyph(glyph, subPixelPosition);
     if (g && g->format == format) {
         if (uploadToServer && !g->uploadedToServer) {
             set->setGlyph(glyph, subPixelPosition, 0);
             delete g;
             g = 0;
         } else {
             return g;
         }
     }
 
     QFontEngineFT::GlyphInfo info;
 
     Q_ASSERT(format != Format_None);
     bool hsubpixel = false;
     int vfactor = 1;
     int load_flags = loadFlags(set, format, 0, hsubpixel, vfactor);
 
 #ifndef Q_WS_QWS
     if (format != Format_Mono && !embeddedbitmap)
         load_flags |= FT_LOAD_NO_BITMAP;
 #endif
 
     FT_Matrix matrix = freetype->matrix;
     bool transform = matrix.xx != 0x10000
                      || matrix.yy != 0x10000
                      || matrix.xy != 0
                      || matrix.yx != 0;
 
     if (transform)
         load_flags |= FT_LOAD_NO_BITMAP;
 
     FT_Face face = freetype->face;
 
     FT_Vector v;
     v.x = format == Format_Mono ? 0 : FT_Pos(subPixelPosition.toReal() * 64);
     v.y = 0;
     FT_Set_Transform(face, &freetype->matrix, &v);
 
     FT_Error err = FT_Load_Glyph(face, glyph, load_flags);
     if (err && (load_flags & FT_LOAD_NO_BITMAP)) {
         load_flags &= ~FT_LOAD_NO_BITMAP;
         err = FT_Load_Glyph(face, glyph, load_flags);
     }
     if (err == FT_Err_Too_Few_Arguments) {
         // this is an error in the bytecode interpreter, just try to run without it
         load_flags |= FT_LOAD_FORCE_AUTOHINT;
         err = FT_Load_Glyph(face, glyph, load_flags);
     }
     if (err != FT_Err_Ok)
         qWarning("load glyph failed err=%x face=%p, glyph=%d", err, face, glyph);
 
     if (set->outline_drawing && fetchMetricsOnly)
         return 0;
 
     FT_GlyphSlot slot = face->glyph;
     if (embolden) Q_FT_GLYPHSLOT_EMBOLDEN(slot);
     FT_Library library = qt_getFreetype();
 
     info.xOff = TRUNC(ROUND(slot->advance.x));
     info.yOff = 0;
 
     uchar *glyph_buffer = 0;
     int glyph_buffer_size = 0;
 #if defined(QT_USE_FREETYPE_LCDFILTER)
     bool useFreetypeRenderGlyph = false;
     if (slot->format == FT_GLYPH_FORMAT_OUTLINE && (hsubpixel || vfactor != 1)) {
         err = FT_Library_SetLcdFilter(library, (FT_LcdFilter)lcdFilterType);
         if (err == FT_Err_Ok)
             useFreetypeRenderGlyph = true;
     }
 
     if (useFreetypeRenderGlyph) {
         err = FT_Render_Glyph(slot, hsubpixel ? FT_RENDER_MODE_LCD : FT_RENDER_MODE_LCD_V);
 
         if (err != FT_Err_Ok)
             qWarning("render glyph failed err=%x face=%p, glyph=%d", err, face, glyph);
 
         FT_Library_SetLcdFilter(library, FT_LCD_FILTER_NONE);
 
         info.height = slot->bitmap.rows / vfactor;
         info.width = hsubpixel ? slot->bitmap.width / 3 : slot->bitmap.width;
         info.x = -slot->bitmap_left;
         info.y = slot->bitmap_top;
 
         glyph_buffer_size = info.width * info.height * 4;
         glyph_buffer = new uchar[glyph_buffer_size];
 
         if (hsubpixel)
             convertRGBToARGB(slot->bitmap.buffer, (uint *)glyph_buffer, info.width, info.height, slot->bitmap.pitch, subpixelType != QFontEngineFT::Subpixel_RGB, false);
         else if (vfactor != 1)
             convertRGBToARGB_V(slot->bitmap.buffer, (uint *)glyph_buffer, info.width, info.height, slot->bitmap.pitch, subpixelType != QFontEngineFT::Subpixel_VRGB, false);
     } else
 #endif
     {
     int left  = slot->metrics.horiBearingX;
     int right = slot->metrics.horiBearingX + slot->metrics.width;
     int top    = slot->metrics.horiBearingY;
     int bottom = slot->metrics.horiBearingY - slot->metrics.height;
     if(transform && slot->format != FT_GLYPH_FORMAT_BITMAP) {
         int l, r, t, b;
         FT_Vector vector;
         vector.x = left;
         vector.y = top;
         FT_Vector_Transform(&vector, &matrix);
         l = r = vector.x;
         t = b = vector.y;
         vector.x = right;
         vector.y = top;
         FT_Vector_Transform(&vector, &matrix);
         if (l > vector.x) l = vector.x;
         if (r < vector.x) r = vector.x;
         if (t < vector.y) t = vector.y;
         if (b > vector.y) b = vector.y;
         vector.x = right;
         vector.y = bottom;
         FT_Vector_Transform(&vector, &matrix);
         if (l > vector.x) l = vector.x;
         if (r < vector.x) r = vector.x;
         if (t < vector.y) t = vector.y;
         if (b > vector.y) b = vector.y;
         vector.x = left;
         vector.y = bottom;
         FT_Vector_Transform(&vector, &matrix);
         if (l > vector.x) l = vector.x;
         if (r < vector.x) r = vector.x;
         if (t < vector.y) t = vector.y;
         if (b > vector.y) b = vector.y;
         left = l;
         right = r;
         top = t;
         bottom = b;
     }
     left = FLOOR(left);
     right = CEIL(right);
     bottom = FLOOR(bottom);
     top = CEIL(top);
 
     int hpixels = TRUNC(right - left);
     // subpixel position requires one more pixel
     if (subPixelPosition > 0 && format != Format_Mono)
         hpixels++;
 
     if (hsubpixel)
         hpixels = hpixels*3 + 8;
     info.width = hpixels;
     info.height = TRUNC(top - bottom);
     info.x = -TRUNC(left);
     info.y = TRUNC(top);
     if (hsubpixel) {
         info.width /= 3;
         info.x += 1;
     }
 
     bool large_glyph = (((short)(slot->linearHoriAdvance>>10) != slot->linearHoriAdvance>>10)
                         || ((uchar)(info.width) != info.width)
                         || ((uchar)(info.height) != info.height)
                         || ((signed char)(info.x) != info.x)
                         || ((signed char)(info.y) != info.y)
                         || ((signed char)(info.xOff) != info.xOff));
 
     if (large_glyph) {
         delete [] glyph_buffer;
         return 0;
     }
 
     int pitch = (format == Format_Mono ? ((info.width + 31) & ~31) >> 3 :
                  (format == Format_A8 ? (info.width + 3) & ~3 : info.width * 4));
     glyph_buffer_size = pitch * info.height;
     glyph_buffer = new uchar[glyph_buffer_size];
 
     if (slot->format == FT_GLYPH_FORMAT_OUTLINE) {
         FT_Bitmap bitmap;
         bitmap.rows = info.height*vfactor;
         bitmap.width = hpixels;
         bitmap.pitch = format == Format_Mono ? (((info.width + 31) & ~31) >> 3) : ((bitmap.width + 3) & ~3);
         if (!hsubpixel && vfactor == 1)
             bitmap.buffer = glyph_buffer;
         else
             bitmap.buffer = new uchar[bitmap.rows*bitmap.pitch];
         memset(bitmap.buffer, 0, bitmap.rows*bitmap.pitch);
         bitmap.pixel_mode = format == Format_Mono ? FT_PIXEL_MODE_MONO : FT_PIXEL_MODE_GRAY;
         FT_Matrix matrix;
         matrix.xx = (hsubpixel ? 3 : 1) << 16;
         matrix.yy = vfactor << 16;
         matrix.yx = matrix.xy = 0;
 
         FT_Outline_Transform(&slot->outline, &matrix);
         FT_Outline_Translate (&slot->outline, (hsubpixel ? -3*left +(4<<6) : -left), -bottom*vfactor);
         FT_Outline_Get_Bitmap(library, &slot->outline, &bitmap);
         if (hsubpixel) {
             Q_ASSERT (bitmap.pixel_mode == FT_PIXEL_MODE_GRAY);
             Q_ASSERT(antialias);
             uchar *convoluted = new uchar[bitmap.rows*bitmap.pitch];
             bool useLegacyLcdFilter = false;
 #if defined(FC_LCD_FILTER) && defined(FT_LCD_FILTER_H)
             useLegacyLcdFilter = (lcdFilterType == FT_LCD_FILTER_LEGACY);
 #endif
             uchar *buffer = bitmap.buffer;
             if (!useLegacyLcdFilter) {
                 convoluteBitmap(bitmap.buffer, convoluted, bitmap.width, info.height, bitmap.pitch);
                 buffer = convoluted;
             }
             convertRGBToARGB(buffer + 1, (uint *)glyph_buffer, info.width, info.height, bitmap.pitch, subpixelType != QFontEngineFT::Subpixel_RGB, useLegacyLcdFilter);
             delete [] convoluted;
         } else if (vfactor != 1) {
             convertRGBToARGB_V(bitmap.buffer, (uint *)glyph_buffer, info.width, info.height, bitmap.pitch, subpixelType != QFontEngineFT::Subpixel_VRGB, true);
         }
 
         if (bitmap.buffer != glyph_buffer)
             delete [] bitmap.buffer;
     } else if (slot->format == FT_GLYPH_FORMAT_BITMAP) {
         Q_ASSERT(slot->bitmap.pixel_mode == FT_PIXEL_MODE_MONO);
         uchar *src = slot->bitmap.buffer;
         uchar *dst = glyph_buffer;
         int h = slot->bitmap.rows;
         if (format == Format_Mono) {
             int bytes = ((info.width + 7) & ~7) >> 3;
             while (h--) {
                 memcpy (dst, src, bytes);
                 dst += pitch;
                 src += slot->bitmap.pitch;
             }
         } else {
             if (hsubpixel) {
                 while (h--) {
                     uint *dd = (uint *)dst;
                     *dd++ = 0;
                     for (int x = 0; x < slot->bitmap.width; x++) {
                         uint a = ((src[x >> 3] & (0x80 >> (x & 7))) ? 0xffffff : 0x000000);
                         *dd++ = a;
                     }
                     *dd++ = 0;
                     dst += pitch;
                     src += slot->bitmap.pitch;
                 }
             } else if (vfactor != 1) {
                 while (h--) {
                     uint *dd = (uint *)dst;
                     for (int x = 0; x < slot->bitmap.width; x++) {
                         uint a = ((src[x >> 3] & (0x80 >> (x & 7))) ? 0xffffff : 0x000000);
                         *dd++ = a;
                     }
                     dst += pitch;
                     src += slot->bitmap.pitch;
                 }
             } else {
                 while (h--) {
                     for (int x = 0; x < slot->bitmap.width; x++) {
                         unsigned char a = ((src[x >> 3] & (0x80 >> (x & 7))) ? 0xff : 0x00);
                         dst[x] = a;
                     }
                     dst += pitch;
                     src += slot->bitmap.pitch;
                 }
             }
         }
     } else {
         qWarning("QFontEngine: Glyph neither outline nor bitmap format=%d", slot->format);
         delete [] glyph_buffer;
         return 0;
     }
     }
 
 
     if (!g) {
         g = new Glyph;
         g->uploadedToServer = false;
         g->data = 0;
     }
 
     g->linearAdvance = slot->linearHoriAdvance >> 10;
     g->width = info.width;
     g->height = info.height;
     g->x = -info.x;
     g->y = info.y;
     g->advance = info.xOff;
     g->format = format;
     delete [] g->data;
     g->data = glyph_buffer;
 
     if (uploadToServer) {
         uploadGlyphToServer(set, glyph, g, &info, glyph_buffer_size);
     }
 
     set->setGlyph(glyph, subPixelPosition, g);
 
     return g;
 }

◆ loadGlyphs()

bool QFontEngineFT::loadGlyphs	(	QGlyphSet *	gs,
		const glyph_t *	glyphs,
		int	num_glyphs,
		const QFixedPoint *	positions,
		GlyphFormat	format = `Format_Render`
	)

Definition at line 1363 of file qfontengine_ft.cpp.

Referenced by QRasterPaintEngine::drawCachedGlyphs(), QX11PaintEngine::drawFreetype(), and QTextureGlyphCache::textureMapForGlyph().

 {
     FT_Face face = 0;
 
     for (int i = 0; i < num_glyphs; ++i) {
         QFixed spp = subPixelPositionForX(positions[i].x);
         Glyph *glyph = gs->getGlyph(glyphs[i], spp);
         if (glyph == 0 || glyph->format != format) {
             if (!face) {
                 face = lockFace();
                 FT_Matrix m = matrix;
                 FT_Matrix_Multiply(&gs->transformationMatrix, &m);
                 FT_Set_Transform(face, &m, 0);
                 freetype->matrix = m;
             }
             if (!loadGlyph(gs, glyphs[i], spp, format)) {
                 unlockFace();
                 return false;
             }
         }
     }
 
     if (face)
         unlockFace();
 
     return true;
 }

◆ loadTransformedGlyphSet()

QFontEngineFT::QGlyphSet * QFontEngineFT::loadTransformedGlyphSet ( const QTransform & matrix )

Definition at line 1291 of file qfontengine_ft.cpp.

Referenced by QRasterPaintEngine::drawCachedGlyphs(), QX11PaintEngine::drawFreetype(), and QTextureGlyphCache::textureMapForGlyph().

 {
     if (matrix.type() > QTransform::TxShear)
         return 0;
 
     // FT_Set_Transform only supports scalable fonts
     if (!FT_IS_SCALABLE(freetype->face))
         return 0;
 
     FT_Matrix m;
     m.xx = FT_Fixed(matrix.m11() * 65536);
     m.xy = FT_Fixed(-matrix.m21() * 65536);
     m.yx = FT_Fixed(-matrix.m12() * 65536);
     m.yy = FT_Fixed(matrix.m22() * 65536);
 
     QGlyphSet *gs = 0;
 
     for (int i = 0; i < transformedGlyphSets.count(); ++i) {
         const QGlyphSet &g = transformedGlyphSets.at(i);
         if (g.transformationMatrix.xx == m.xx
             && g.transformationMatrix.xy == m.xy
             && g.transformationMatrix.yx == m.yx
             && g.transformationMatrix.yy == m.yy) {
 
             // found a match, move it to the front
             transformedGlyphSets.move(i, 0);
             gs = &transformedGlyphSets[0];
             break;
         }
     }
 
     if (!gs) {
         // don't try to load huge fonts
         bool draw_as_outline = fontDef.pixelSize * qSqrt(qAbs(matrix.det())) >= QT_MAX_CACHED_GLYPH_SIZE;
         if (draw_as_outline)
             return 0;
 
         // don't cache more than 10 transformations
         if (transformedGlyphSets.count() >= 10) {
             transformedGlyphSets.move(transformedGlyphSets.size() - 1, 0);
             freeServerGlyphSet(transformedGlyphSets.at(0).id);
         } else {
             transformedGlyphSets.prepend(QGlyphSet());
         }
         gs = &transformedGlyphSets[0];
 
         gs->clear();
 
         gs->id = allocateServerGlyphSet();
 
         gs->transformationMatrix = m;
         gs->outline_drawing = draw_as_outline;
     }
 
     return gs;
 }

◆ lockFace()

FT_Face QFontEngineFT::lockFace ( Scaling scale = Scaled ) const

Definition at line 1863 of file qfontengine_ft.cpp.

Referenced by QRasterPaintEngine::drawCachedGlyphs(), getPointInOutline(), path_for_glyphs(), and qgl_use_font().

 {
     freetype->lock();
     FT_Face face = freetype->face;
     if (scale == Unscaled) {
         FT_Set_Char_Size(face, face->units_per_EM << 6, face->units_per_EM << 6, 0, 0);
         freetype->xsize = face->units_per_EM << 6;
         freetype->ysize = face->units_per_EM << 6;
     } else if (freetype->xsize != xsize || freetype->ysize != ysize) {
         FT_Set_Char_Size(face, xsize, ysize, 0, 0);
         freetype->xsize = xsize;
         freetype->ysize = ysize;
     }
     if (freetype->matrix.xx != matrix.xx ||
         freetype->matrix.yy != matrix.yy ||
         freetype->matrix.xy != matrix.xy ||
         freetype->matrix.yx != matrix.yx) {
         freetype->matrix = matrix;
         FT_Set_Transform(face, &freetype->matrix, 0);
     }
 
     return face;
 }

◆ maxCharWidth()

qreal QFontEngineFT::maxCharWidth ( ) const

virtual

Implements QFontEngine.

Definition at line 1210 of file qfontengine_ft.cpp.

 {
     return metrics.max_advance >> 6;
 }

◆ minLeftBearing()

qreal QFontEngineFT::minLeftBearing ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1239 of file qfontengine_ft.cpp.

 {
     if (lbearing == SHRT_MIN)
         (void) minRightBearing(); // calculates both
     return lbearing.toReal();
 }

◆ minRightBearing()

qreal QFontEngineFT::minRightBearing ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1246 of file qfontengine_ft.cpp.

 {
     if (rbearing == SHRT_MIN) {
         lbearing = rbearing = 0;
         const QChar *ch = (const QChar *)(const void*)char_table;
         QGlyphLayoutArray<char_table_entries> glyphs;
         int ng = char_table_entries;
         stringToCMap(ch, char_table_entries, &glyphs, &ng, QTextEngine::GlyphIndicesOnly);
         while (--ng) {
             if (glyphs.glyphs[ng]) {
                 glyph_metrics_t gi = const_cast<QFontEngineFT *>(this)->boundingBox(glyphs.glyphs[ng]);
                 lbearing = qMin(lbearing, gi.x);
                 rbearing = qMin(rbearing, (gi.xoff - gi.x - gi.width));
             }
         }
     }
     return rbearing.toReal();
 }

◆ name()

virtual const char* QFontEngineFT::name ( ) const

inlinevirtual

Implements QFontEngine.

Definition at line 236 of file qfontengine_ft_p.h.

237 { return "freetype"; }

◆ non_locked_face()

FT_Face QFontEngineFT::non_locked_face ( ) const

Definition at line 1892 of file qfontengine_ft.cpp.

Referenced by QFont::freetypeFace(), ft_face(), and qt_x11_set_fallback_font_family().

 {
     return freetype->face;
 }

◆ properties()

QFontEngine::Properties QFontEngineFT::properties ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1135 of file qfontengine_ft.cpp.

 {
     Properties p = freetype->properties();
     if (p.postscriptName.isEmpty()) {
         p.postscriptName = QFontEngine::convertToPostscriptFontFamilyName(fontDef.family.toUtf8());
     }
 
     return freetype->properties();
 }

◆ recalcAdvances()

void QFontEngineFT::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 QFontEngine.

Definition at line 1598 of file qfontengine_ft.cpp.

 {
     FT_Face face = 0;
     bool design = (default_hint_style == HintNone ||
                    default_hint_style == HintLight ||
                    (flags & HB_ShaperFlag_UseDesignMetrics)) && FT_IS_SCALABLE(freetype->face);
     for (int i = 0; i < glyphs->numGlyphs; i++) {
         Glyph *g = defaultGlyphSet.getGlyph(glyphs->glyphs[i]);
         if (g) {
             glyphs->advances_x[i] = design ? QFixed::fromFixed(g->linearAdvance) : QFixed(g->advance);
         } else {
             if (!face)
                 face = lockFace();
             g = loadGlyph(glyphs->glyphs[i], 0, Format_None, true);
             glyphs->advances_x[i] = design ? QFixed::fromFixed(face->glyph->linearHoriAdvance >> 10)
                                            : QFixed::fromFixed(face->glyph->metrics.horiAdvance).round();
         }
         if (fontDef.styleStrategy & QFont::ForceIntegerMetrics)
             glyphs->advances_x[i] = glyphs->advances_x[i].round();
         glyphs->advances_y[i] = 0;
     }
     if (face)
         unlockFace();
 }

◆ removeGlyphFromCache()

void QFontEngineFT::removeGlyphFromCache ( glyph_t glyph )

virtual

Reimplemented from QFontEngine.

Definition at line 1847 of file qfontengine_ft.cpp.

 {
     defaultGlyphSet.removeGlyphFromCache(glyph, 0);
 }

◆ setDefaultHintStyle()

void QFontEngineFT::setDefaultHintStyle ( HintStyle style )

Definition at line 774 of file qfontengine_ft.cpp.

Referenced by QFontconfigDatabase::fontEngine(), and QRawFontPrivate::platformLoadFromData().

 {
     default_hint_style = style;
 }

◆ stringToCMap()

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

virtual

Implements QFontEngine.

Definition at line 1501 of file qfontengine_ft.cpp.

 {
     if (*nglyphs < len) {
         *nglyphs = len;
         return false;
     }
 
 #if !defined(QT_NO_FONTCONFIG)
     extern QMutex *qt_fontdatabase_mutex();
     QMutex *mtx = 0;
 #endif
 
     bool mirrored = flags & QTextEngine::RightToLeft;
     int glyph_pos = 0;
     if (freetype->symbol_map) {
         FT_Face face = freetype->face;
         for ( int i = 0; i < len; ++i ) {
             unsigned int uc = getChar(str, i, len);
             glyphs->glyphs[glyph_pos] = uc < QFreetypeFace::cmapCacheSize ? freetype->cmapCache[uc] : 0;
             if ( !glyphs->glyphs[glyph_pos] ) {
                 glyph_t glyph;
 #if !defined(QT_NO_FONTCONFIG)
                 if (!mtx) {
                     mtx = qt_fontdatabase_mutex();
                     mtx->lock();
                 }
 
                 if (freetype->charset != 0 && FcCharSetHasChar(freetype->charset, uc)) {
 #else
                 if (false) {
 #endif
                 redo0:
                     glyph = FT_Get_Char_Index(face, uc);
                     if (!glyph && (uc == 0xa0 || uc == 0x9)) {
                         uc = 0x20;
                         goto redo0;
                     }
                 } else {
                     FT_Set_Charmap(face, freetype->symbol_map);
                     glyph = FT_Get_Char_Index(face, uc);
                     FT_Set_Charmap(face, freetype->unicode_map);
                 }
                 glyphs->glyphs[glyph_pos] = glyph;
                 if (uc < QFreetypeFace::cmapCacheSize)
                     freetype->cmapCache[uc] = glyph;
             }
             ++glyph_pos;
         }
     } else {
         FT_Face face = freetype->face;
         for (int i = 0; i < len; ++i) {
             unsigned int uc = getChar(str, i, len);
             if (mirrored)
                 uc = QChar::mirroredChar(uc);
             glyphs->glyphs[glyph_pos] = uc < QFreetypeFace::cmapCacheSize ? freetype->cmapCache[uc] : 0;
             if (!glyphs->glyphs[glyph_pos]) {
 #if !defined(QT_NO_FONTCONFIG)
                 if (!mtx) {
                     mtx = qt_fontdatabase_mutex();
                     mtx->lock();
                 }
 
                 if (freetype->charset == 0 || FcCharSetHasChar(freetype->charset, uc))
 #endif
                 {
                 redo:
                     glyph_t glyph = FT_Get_Char_Index(face, uc);
                     if (!glyph && (uc == 0xa0 || uc == 0x9)) {
                         uc = 0x20;
                         goto redo;
                     }
                     glyphs->glyphs[glyph_pos] = glyph;
                     if (uc < QFreetypeFace::cmapCacheSize)
                         freetype->cmapCache[uc] = glyph;
                 }
             }
             ++glyph_pos;
         }
     }
 
     *nglyphs = glyph_pos;
     glyphs->numGlyphs = glyph_pos;
 
 #if !defined(QT_NO_FONTCONFIG)
     if (mtx)
         mtx->unlock();
 #endif
 
     if (flags & QTextEngine::GlyphIndicesOnly)
         return true;
 
     recalcAdvances(glyphs, flags);
 
     return true;
 }

◆ subPixelPositionForX()

QFixed QFontEngineFT::subPixelPositionForX ( QFixed x )

Definition at line 1348 of file qfontengine_ft.cpp.

Referenced by QRasterPaintEngine::drawCachedGlyphs().

 {
     int m_subPixelPositionCount = 4;
     if (!supportsSubPixelPositions())
         return 0;
 
     QFixed subPixelPosition;
     if (x != 0) {
         subPixelPosition = x - x.floor();
         QFixed fraction = (subPixelPosition / QFixed::fromReal(1.0 / m_subPixelPositionCount)).floor();
         subPixelPosition = fraction / QFixed(m_subPixelPositionCount);
     }
     return subPixelPosition;
 }

◆ supportsSubPixelPositions()

virtual bool QFontEngineFT::supportsSubPixelPositions ( ) const

inlinevirtual

Reimplemented from QFontEngine.

Definition at line 211 of file qfontengine_ft_p.h.

Referenced by QRasterPaintEngine::drawCachedGlyphs().

     {
         return default_hint_style == HintLight ||
                default_hint_style == HintNone;
     }

◆ synthesized()

int QFontEngineFT::synthesized ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1158 of file qfontengine_ft.cpp.

 {
     int s = 0;
     if ((fontDef.style != QFont::StyleNormal) && !(freetype->face->style_flags & FT_STYLE_FLAG_ITALIC))
         s = SynthesizedItalic;
     if ((fontDef.weight == QFont::Bold) && !(freetype->face->style_flags & FT_STYLE_FLAG_BOLD))
         s |= SynthesizedBold;
     if (fontDef.stretch != 100 && FT_IS_SCALABLE(freetype->face))
         s |= SynthesizedStretch;
     return s;
 }

◆ type()

virtual Type QFontEngineFT::type ( ) const

inlinevirtual

Implements QFontEngine.

Definition at line 234 of file qfontengine_ft_p.h.

235 { return QFontEngine::Freetype; }

QFontEngine::Freetype

Definition: qfontengine_p.h:112

◆ underlinePosition()

QFixed QFontEngineFT::underlinePosition ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1270 of file qfontengine_ft.cpp.

 {
     return underline_position;
 }

◆ unlockFace()

void QFontEngineFT::unlockFace ( ) const

Definition at line 1887 of file qfontengine_ft.cpp.

Referenced by QRasterPaintEngine::drawCachedGlyphs(), getPointInOutline(), path_for_glyphs(), and qgl_use_font().

 {
     freetype->unlock();
 }

◆ uploadGlyphToServer()

bool QFontEngineFT::uploadGlyphToServer	(	QGlyphSet *	set,
		uint	glyphid,
		Glyph *	g,
		GlyphInfo *	info,
		int	glyphDataSize
	)		const

protectedvirtual

Reimplemented in QFontEngineX11FT.

Definition at line 1120 of file qfontengine_ft.cpp.

 {
     Q_UNUSED(set);
     Q_UNUSED(glyphid);
     Q_UNUSED(g);
     Q_UNUSED(info);
     Q_UNUSED(glyphDataSize);
     return false;
 }

◆ xHeight()

QFixed QFontEngineFT::xHeight ( ) const

virtual

Reimplemented from QFontEngine.

Definition at line 1186 of file qfontengine_ft.cpp.

 {
     TT_OS2 *os2 = (TT_OS2 *)FT_Get_Sfnt_Table(freetype->face, ft_sfnt_os2);
     if (os2 && os2->sxHeight) {
         lockFace();
         QFixed answer = QFixed(os2->sxHeight*freetype->face->size->metrics.y_ppem)/freetype->face->units_per_EM;
         unlockFace();
         return answer;
     }
     return QFontEngine::xHeight();
 }

Friends and Related Functions

◆ QFontEngineFTRawFont

friend class QFontEngineFTRawFont

friend

Definition at line 345 of file qfontengine_ft_p.h.

Properties

◆ antialias

bool QFontEngineFT::antialias

protected

Definition at line 336 of file qfontengine_ft_p.h.

Referenced by initFromFontEngine(), and QFontEngineX11FT::QFontEngineX11FT().

◆ canUploadGlyphsToServer

bool QFontEngineFT::canUploadGlyphsToServer

protected

Definition at line 341 of file qfontengine_ft_p.h.

Referenced by QFontEngineX11FT::allocateServerGlyphSet(), initFromFontEngine(), QFontEngineX11FT::QFontEngineX11FT(), and QFontEngineX11FT::uploadGlyphToServer().

◆ default_hint_style

HintStyle QFontEngineFT::default_hint_style

protected

Definition at line 334 of file qfontengine_ft_p.h.

Referenced by initFromFontEngine().

◆ default_load_flags

int QFontEngineFT::default_load_flags

protected

Definition at line 331 of file qfontengine_ft_p.h.

Referenced by initFromFontEngine().

◆ defaultFormat

GlyphFormat QFontEngineFT::defaultFormat

private

Definition at line 349 of file qfontengine_ft_p.h.

Referenced by initFromFontEngine().

◆ defaultGlyphSet

QGlyphSet QFontEngineFT::defaultGlyphSet

mutableprivate

Definition at line 353 of file qfontengine_ft_p.h.

◆ embeddedbitmap

bool QFontEngineFT::embeddedbitmap

protected

Definition at line 342 of file qfontengine_ft_p.h.

Referenced by initFromFontEngine().

◆ embolden

bool QFontEngineFT::embolden

protected

Definition at line 338 of file qfontengine_ft_p.h.

Referenced by initFromFontEngine().

◆ face_id

QFontEngine::FaceId QFontEngineFT::face_id

private

Definition at line 355 of file qfontengine_ft_p.h.

Referenced by QFontEngineX11FT::QFontEngineX11FT().

◆ freetype

QFreetypeFace* QFontEngineFT::freetype

protected

Definition at line 330 of file qfontengine_ft_p.h.

Referenced by getPointInOutline(), initFromFontEngine(), and QFontEngineFTRawFont::updateFamilyNameAndStyle().

◆ kerning_pairs_loaded

bool QFontEngineFT::kerning_pairs_loaded

mutableprivate

Definition at line 366 of file qfontengine_ft_p.h.

◆ lbearing

QFixed QFontEngineFT::lbearing

mutableprivate

Definition at line 360 of file qfontengine_ft_p.h.

◆ lcdFilterType

int QFontEngineFT::lcdFilterType

protected

Definition at line 340 of file qfontengine_ft_p.h.

Referenced by initFromFontEngine().

◆ line_thickness

QFixed QFontEngineFT::line_thickness

private

Definition at line 362 of file qfontengine_ft_p.h.

◆ matrix

FT_Matrix QFontEngineFT::matrix

private

Definition at line 350 of file qfontengine_ft_p.h.

◆ metrics

FT_Size_Metrics QFontEngineFT::metrics

private

Definition at line 365 of file qfontengine_ft_p.h.

◆ rbearing

QFixed QFontEngineFT::rbearing

mutableprivate

Definition at line 361 of file qfontengine_ft_p.h.

◆ subpixelType

SubpixelAntialiasingType QFontEngineFT::subpixelType

protected

Definition at line 339 of file qfontengine_ft_p.h.

Referenced by initFromFontEngine(), and QFontEngineX11FT::QFontEngineX11FT().

◆ transform

bool QFontEngineFT::transform

protected

Definition at line 337 of file qfontengine_ft_p.h.

Referenced by initFromFontEngine().

◆ transformedGlyphSets

QList<QGlyphSet> QFontEngineFT::transformedGlyphSets

private

Definition at line 352 of file qfontengine_ft_p.h.

◆ underline_position

QFixed QFontEngineFT::underline_position

private

Definition at line 363 of file qfontengine_ft_p.h.

◆ xsize

int QFontEngineFT::xsize

private

Definition at line 357 of file qfontengine_ft_p.h.

◆ ysize

int QFontEngineFT::ysize

private

Definition at line 358 of file qfontengine_ft_p.h.

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

/src/gui/text/qfontengine_ft_p.h
/src/gui/text/qfontengine_ft.cpp

Classes

Public Types

Public Functions

Protected Functions

Protected Variables

Private Functions

Properties

Friends

Additional Inherited Members

Detailed Description

Typedefs

◆ GlyphInfo

Enumerations

◆ HintStyle

◆ Scaling

◆ SubpixelAntialiasingType

Constructors and Destructors

◆ QFontEngineFT()

◆ ~QFontEngineFT()

Functions

◆ addGlyphsToPath()

◆ addOutlineToPath()

◆ allocateServerGlyphSet()

◆ alphaMapBoundingBox()

◆ alphaMapForGlyph() [1/2]

◆ alphaMapForGlyph() [2/2]

◆ alphaRGBMapForGlyph()

◆ ascent()

◆ averageCharWidth()

◆ boundingBox() [1/3]

◆ boundingBox() [2/3]

◆ boundingBox() [3/3]

◆ cachedGlyph()

◆ canRender()

◆ cloneWithSize()

◆ defaultGlyphFormat()

◆ defaultGlyphs()

◆ defaultHintStyle()

◆ descent()

◆ doKerning()

◆ draw()

◆ drawAntialiased()

◆ emSquareSize()

◆ faceId()

◆ freeGlyphSets()

◆ freeServerGlyphSet()

◆ getPointInOutline()

◆ getSfntTableData()

◆ getUnscaledGlyph()

◆ glyphCount()

◆ init() [1/2]

◆ init() [2/2]

◆ initFromFontEngine()

◆ invalid()

◆ isBitmapFont()

◆ leading()

◆ lineThickness()

◆ loadFlags()

◆ loadGlyph() [1/2]

◆ loadGlyph() [2/2]

◆ loadGlyphs()

◆ loadTransformedGlyphSet()

◆ lockFace()

◆ maxCharWidth()

◆ minLeftBearing()

◆ minRightBearing()

◆ name()

◆ non_locked_face()

◆ properties()

◆ recalcAdvances()

◆ removeGlyphFromCache()

◆ setDefaultHintStyle()

◆ stringToCMap()

◆ subPixelPositionForX()

◆ supportsSubPixelPositions()

◆ synthesized()

◆ type()

◆ underlinePosition()

◆ unlockFace()

◆ uploadGlyphToServer()