skia::textlayout::LangIterator Class Reference

#include <Iterators.h>

Inheritance diagram for skia::textlayout::LangIterator:

Public Member Functions
	LangIterator (SkSpan< const char > utf8, SkSpan< Block > styles, const TextStyle &defaultStyle)
void	consume () override
size_t	endOfCurrentRun () const override
bool	atEnd () const override
const char *	currentLanguage () const override
Public Member Functions inherited from SkShaper::RunIterator
virtual	~RunIterator ()=default

Detailed Description

Definition at line 14 of file Iterators.h.

Constructor & Destructor Documentation

LangIterator()

skia::textlayout::LangIterator::LangIterator ( SkSpan< const char >  utf8, SkSpan< Block >  styles, const TextStyle &  defaultStyle  )

inline

Definition at line 16 of file Iterators.h.

            : fText(utf8)
            , fTextStyles(styles)
            , fCurrentChar(utf8.begin())
            , fCurrentStyle(fTextStyles.begin())
            , fCurrentLocale(defaultStyle.getLocale()) {}

Member Function Documentation

atEnd()

bool skia::textlayout::LangIterator::atEnd ( ) const

inlineoverridevirtual

Return true if consume should no longer be called.

Implements SkShaper::RunIterator.

Definition at line 42 of file Iterators.h.

{ return fCurrentChar >= fText.end(); }

consume()

void skia::textlayout::LangIterator::consume ( )

inlineoverridevirtual

Set state to that of current run and move iterator to end of that run.

Implements SkShaper::RunIterator.

Definition at line 23 of file Iterators.h.

                            {
        SkASSERT(fCurrentChar < fText.end());
 
        if (fCurrentStyle == fTextStyles.end()) {
            fCurrentChar = fText.end();
            return;
        }
 
        fCurrentChar = fText.begin() + fCurrentStyle->fRange.end;
        fCurrentLocale = fCurrentStyle->fStyle.getLocale();
        while (++fCurrentStyle != fTextStyles.end() && !fCurrentStyle->fStyle.isPlaceholder()) {
            if (fCurrentStyle->fStyle.getLocale() != fCurrentLocale) {
                break;
            }
            fCurrentChar = fText.begin() + fCurrentStyle->fRange.end;
        }
    }

currentLanguage()

const char * skia::textlayout::LangIterator::currentLanguage ( ) const

inlineoverridevirtual

Should be BCP-47, c locale names may also work.

Implements SkShaper::LanguageRunIterator.

Definition at line 43 of file Iterators.h.

{ return fCurrentLocale.c_str(); }

endOfCurrentRun()

size_t skia::textlayout::LangIterator::endOfCurrentRun ( ) const

inlineoverridevirtual

Offset to one past the last (utf8) element in the current run.

Implements SkShaper::RunIterator.

Definition at line 41 of file Iterators.h.

{ return fCurrentChar - fText.begin(); }

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

• third_party/skia/modules/skparagraph/src/Iterators.h