SkTextBlobRunIterator Class Reference

#include <SkTextBlobPriv.h>

Public Types
enum	GlyphPositioning : uint8_t { kDefault_Positioning = 0 , kHorizontal_Positioning = 1 , kFull_Positioning = 2 , kRSXform_Positioning = 3 }

Public Member Functions
	SkTextBlobRunIterator (const SkTextBlob *blob)
bool	done () const
void	next ()
uint32_t	glyphCount () const
const uint16_t *	glyphs () const
const SkScalar *	pos () const
const SkPoint *	points () const
const SkRSXform *	xforms () const
const SkPoint &	offset () const
const SkFont &	font () const
GlyphPositioning	positioning () const
unsigned	scalarsPerGlyph () const
uint32_t *	clusters () const
uint32_t	textSize () const
char *	text () const
bool	isLCD () const

Detailed Description

Iterate through all of the text runs of the text blob. For example: for (SkTextBlobRunIterator it(blob); !it.done(); it.next()) { ..... }

Definition at line 185 of file SkTextBlobPriv.h.

Member Enumeration Documentation

GlyphPositioning

enum SkTextBlobRunIterator::GlyphPositioning : uint8_t

Enumerator
kDefault_Positioning
kHorizontal_Positioning
kFull_Positioning
kRSXform_Positioning

Definition at line 189 of file SkTextBlobPriv.h.

                          : uint8_t {
        kDefault_Positioning      = 0, // Default glyph advances -- zero scalars per glyph.
        kHorizontal_Positioning   = 1, // Horizontal positioning -- one scalar per glyph.
        kFull_Positioning         = 2, // Point positioning -- two scalars per glyph.
        kRSXform_Positioning      = 3, // RSXform positioning -- four scalars per glyph.
    };

Constructor & Destructor Documentation

SkTextBlobRunIterator()

SkTextBlobRunIterator::SkTextBlobRunIterator

(

const SkTextBlob *

blob

)

Definition at line 222 of file SkTextBlob.cpp.

    : fCurrentRun(SkTextBlob::RunRecord::First(blob)) {
    SkDEBUGCODE(fStorageTop = (const uint8_t*)blob + blob->fStorageSize;)
}

Member Function Documentation

clusters()

uint32_t * SkTextBlobRunIterator::clusters ( ) const

inline

Definition at line 231 of file SkTextBlobPriv.h.

                               {
        SkASSERT(!this->done());
        return fCurrentRun->clusterBuffer();
    }

done()

bool SkTextBlobRunIterator::done ( ) const

inline

Definition at line 196 of file SkTextBlobPriv.h.

                      {
        return !fCurrentRun;
    }

font()

const SkFont & SkTextBlobRunIterator::font ( ) const

inline

Definition at line 225 of file SkTextBlobPriv.h.

                               {
        SkASSERT(!this->done());
        return fCurrentRun->font();
    }

glyphCount()

uint32_t SkTextBlobRunIterator::glyphCount ( ) const

inline

Definition at line 201 of file SkTextBlobPriv.h.

                                {
        SkASSERT(!this->done());
        return fCurrentRun->glyphCount();
    }

glyphs()

const uint16_t * SkTextBlobRunIterator::glyphs ( ) const

inline

Definition at line 205 of file SkTextBlobPriv.h.

                                   {
        SkASSERT(!this->done());
        return fCurrentRun->glyphBuffer();
    }

isLCD()

bool SkTextBlobRunIterator::isLCD

(

)

const

Definition at line 254 of file SkTextBlob.cpp.

                                        {
    return fCurrentRun->font().getEdging() == SkFont::Edging::kSubpixelAntiAlias;
}

next()

void SkTextBlobRunIterator::next

(

)

Definition at line 227 of file SkTextBlob.cpp.

                                 {
    SkASSERT(!this->done());
 
    if (!this->done()) {
        SkDEBUGCODE(fCurrentRun->validate(fStorageTop);)
        fCurrentRun = SkTextBlob::RunRecord::Next(fCurrentRun);
    }
}

offset()

const SkPoint & SkTextBlobRunIterator::offset ( ) const

inline

Definition at line 221 of file SkTextBlobPriv.h.

                                  {
        SkASSERT(!this->done());
        return fCurrentRun->offset();
    }

points()

const SkPoint * SkTextBlobRunIterator::points ( ) const

inline

Definition at line 214 of file SkTextBlobPriv.h.

                                  {
        return fCurrentRun->pointBuffer();
    }

pos()

const SkScalar * SkTextBlobRunIterator::pos ( ) const

inline

Definition at line 209 of file SkTextBlobPriv.h.

                                {
        SkASSERT(!this->done());
        return fCurrentRun->posBuffer();
    }

positioning()

SkTextBlobRunIterator::GlyphPositioning SkTextBlobRunIterator::positioning

(

)

const

Definition at line 236 of file SkTextBlob.cpp.

                                                                               {
    SkASSERT(!this->done());
    static_assert(static_cast<GlyphPositioning>(SkTextBlob::kDefault_Positioning) ==
                  kDefault_Positioning, "");
    static_assert(static_cast<GlyphPositioning>(SkTextBlob::kHorizontal_Positioning) ==
                  kHorizontal_Positioning, "");
    static_assert(static_cast<GlyphPositioning>(SkTextBlob::kFull_Positioning) ==
                  kFull_Positioning, "");
    static_assert(static_cast<GlyphPositioning>(SkTextBlob::kRSXform_Positioning) ==
                  kRSXform_Positioning, "");
 
    return SkTo<GlyphPositioning>(fCurrentRun->positioning());
}

scalarsPerGlyph()

unsigned SkTextBlobRunIterator::scalarsPerGlyph

(

)

const

Definition at line 250 of file SkTextBlob.cpp.

                                                      {
    return SkTextBlob::ScalarsPerGlyph(fCurrentRun->positioning());
}

text()

char * SkTextBlobRunIterator::text ( ) const

inline

Definition at line 239 of file SkTextBlobPriv.h.

                       {
        SkASSERT(!this->done());
        return fCurrentRun->textBuffer();
    }

textSize()

uint32_t SkTextBlobRunIterator::textSize ( ) const

inline

Definition at line 235 of file SkTextBlobPriv.h.

                              {
        SkASSERT(!this->done());
        return fCurrentRun->textSize();
    }

xforms()

const SkRSXform * SkTextBlobRunIterator::xforms ( ) const

inline

Definition at line 218 of file SkTextBlobPriv.h.

                                    {
        return fCurrentRun->xformBuffer();
    }

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

• third_party/skia/src/core/SkTextBlobPriv.h
• third_party/skia/src/core/SkTextBlob.cpp