SkShaper Class Reference

#include <SkShaper.h>

Inheritance diagram for SkShaper:

Classes
class	BiDiRunIterator
struct	Feature
class	FontRunIterator
class	LanguageRunIterator
class	RunHandler
class	RunIterator
class	ScriptRunIterator
class	TrivialBiDiRunIterator
class	TrivialFontRunIterator
class	TrivialLanguageRunIterator
class	TrivialScriptRunIterator

Public Member Functions
	SkShaper ()
virtual	~SkShaper ()
virtual void	shape (const char *utf8, size_t utf8Bytes, const SkFont &srcFont, bool leftToRight, SkScalar width, RunHandler *) const =0
virtual void	shape (const char *utf8, size_t utf8Bytes, FontRunIterator &, BiDiRunIterator &, ScriptRunIterator &, LanguageRunIterator &, SkScalar width, RunHandler *) const =0
virtual void	shape (const char *utf8, size_t utf8Bytes, FontRunIterator &, BiDiRunIterator &, ScriptRunIterator &, LanguageRunIterator &, const Feature *features, size_t featuresSize, SkScalar width, RunHandler *) const =0

Static Public Member Functions
static std::unique_ptr< SkShaper >	MakePrimitive ()
static std::unique_ptr< SkShaper >	Make (sk_sp< SkFontMgr > fallback=nullptr)
static void	PurgeCaches ()
static std::unique_ptr< FontRunIterator >	MakeFontMgrRunIterator (const char *utf8, size_t utf8Bytes, const SkFont &font, sk_sp< SkFontMgr > fallback)
static std::unique_ptr< SkShaper::FontRunIterator >	MakeFontMgrRunIterator (const char *utf8, size_t utf8Bytes, const SkFont &font, sk_sp< SkFontMgr > fallback, const char *requestName, SkFontStyle requestStyle, const SkShaper::LanguageRunIterator *)
static std::unique_ptr< BiDiRunIterator >	MakeBiDiRunIterator (const char *utf8, size_t utf8Bytes, uint8_t bidiLevel)
static std::unique_ptr< ScriptRunIterator >	MakeScriptRunIterator (const char *utf8, size_t utf8Bytes, SkFourByteTag script)
static std::unique_ptr< LanguageRunIterator >	MakeStdLanguageRunIterator (const char *utf8, size_t utf8Bytes)

Detailed Description

Definition at line 47 of file SkShaper.h.

Constructor & Destructor Documentation

SkShaper()

SkShaper::SkShaper

(

)

Definition at line 80 of file SkShaper.cpp.

{}

~SkShaper()

SkShaper::~SkShaper ( )

virtual

Definition at line 81 of file SkShaper.cpp.

{}

Member Function Documentation

Make()

std::unique_ptr< SkShaper > SkShaper::Make ( sk_sp< SkFontMgr >  fallback = nullptr )

static

Definition at line 36 of file SkShaper.cpp.

                                                                {
#if defined(SK_SHAPER_HARFBUZZ_AVAILABLE) && defined(SK_SHAPER_UNICODE_AVAILABLE)
    std::unique_ptr<SkShaper> shaper = MakeShapeThenWrap(std::move(fallback));
    if (shaper) {
        return shaper;
    }
#elif defined(SK_SHAPER_CORETEXT_AVAILABLE)
    if (auto shaper = SkShapers::CT::CoreText()) {
        return shaper;
    }
#endif
    return SkShapers::Primitive::PrimitiveText();
}

MakeBiDiRunIterator()

std::unique_ptr< SkShaper::BiDiRunIterator > SkShaper::MakeBiDiRunIterator ( const char *  utf8, size_t  utf8Bytes, uint8_t  bidiLevel  )

static

Definition at line 57 of file SkShaper.cpp.

                                                                                   {
#if defined(SK_SHAPER_UNICODE_AVAILABLE)
      std::unique_ptr<SkShaper::BiDiRunIterator> bidi = MakeIcuBiDiRunIterator(utf8, utf8Bytes, bidiLevel);
      if (bidi) {
          return bidi;
      }
#endif
    return std::make_unique<SkShaper::TrivialBiDiRunIterator>(bidiLevel, utf8Bytes);
}

MakeFontMgrRunIterator() [1/2]

std::unique_ptr< SkShaper::FontRunIterator > SkShaper::MakeFontMgrRunIterator ( const char *  utf8, size_t  utf8Bytes, const SkFont &  font, sk_sp< SkFontMgr >  fallback  )

static

Definition at line 187 of file SkShaper.cpp.

{
    return std::make_unique<FontMgrRunIterator>(utf8, utf8Bytes, font, std::move(fallback));
}

MakeFontMgrRunIterator() [2/2]

std::unique_ptr< SkShaper::FontRunIterator > SkShaper::MakeFontMgrRunIterator ( const char *  utf8, size_t  utf8Bytes, const SkFont &  font, sk_sp< SkFontMgr >  fallback, const char *  requestName, SkFontStyle  requestStyle, const SkShaper::LanguageRunIterator *  language  )

static

Definition at line 194 of file SkShaper.cpp.

{
    return std::make_unique<FontMgrRunIterator>(utf8, utf8Bytes, font, std::move(fallback),
                                                requestName, requestStyle, language);
}

MakePrimitive()

std::unique_ptr< SkShaper > SkShaper::MakePrimitive ( )

static

Definition at line 248 of file SkShaper_primitive.cpp.

{ return SkShapers::Primitive::PrimitiveText(); }

MakeScriptRunIterator()

std::unique_ptr< SkShaper::ScriptRunIterator > SkShaper::MakeScriptRunIterator ( const char *  utf8, size_t  utf8Bytes, SkFourByteTag  script  )

static

Definition at line 68 of file SkShaper.cpp.

                                                                                           {
#if defined(SK_SHAPER_HARFBUZZ_AVAILABLE) && defined(SK_SHAPER_UNICODE_AVAILABLE)
    std::unique_ptr<SkShaper::ScriptRunIterator> script =
            SkShapers::HB::ScriptRunIterator(utf8, utf8Bytes, scriptTag);
    if (script) {
        return script;
    }
#endif
    return std::make_unique<SkShaper::TrivialScriptRunIterator>(scriptTag, utf8Bytes);
}

MakeStdLanguageRunIterator()

std::unique_ptr< SkShaper::LanguageRunIterator > SkShaper::MakeStdLanguageRunIterator ( const char *  utf8, size_t  utf8Bytes  )

static

Definition at line 204 of file SkShaper.cpp.

                                                                       {
    return std::make_unique<TrivialLanguageRunIterator>(std::locale().name().c_str(), utf8Bytes);
}

PurgeCaches()

void SkShaper::PurgeCaches ( )

static

Definition at line 50 of file SkShaper.cpp.

                           {
#if defined(SK_SHAPER_HARFBUZZ_AVAILABLE) && defined(SK_SHAPER_UNICODE_AVAILABLE)
    SkShapers::HB::PurgeCaches();
#endif
}

shape() [1/3]

virtual void SkShaper::shape ( const char *  utf8, size_t  utf8Bytes, const SkFont &  srcFont, bool  leftToRight, SkScalar  width, RunHandler *    ) const

pure virtual

Implemented in SkShaper_CoreText, and SkShaperPrimitive.

shape() [2/3]

virtual void SkShaper::shape ( const char *  utf8, size_t  utf8Bytes, FontRunIterator &  , BiDiRunIterator &  , ScriptRunIterator &  , LanguageRunIterator &  , const Feature *  features, size_t  featuresSize, SkScalar  width, RunHandler *    ) const

pure virtual

Implemented in SkShaper_CoreText, and SkShaperPrimitive.

shape() [3/3]

virtual void SkShaper::shape ( const char *  utf8, size_t  utf8Bytes, FontRunIterator &  , BiDiRunIterator &  , ScriptRunIterator &  , LanguageRunIterator &  , SkScalar  width, RunHandler *    ) const

pure virtual

Implemented in SkShaper_CoreText, and SkShaperPrimitive.

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

• third_party/skia/modules/skshaper/include/SkShaper.h
• third_party/skia/modules/skshaper/src/SkShaper.cpp
• third_party/skia/modules/skshaper/src/SkShaper_primitive.cpp