mm::PdfDifferenceEncoding Class Reference

#include <PdfDifferenceEncoding.h>

Inheritance diagram for mm::PdfDifferenceEncoding:

Public Member Functions
	PdfDifferenceEncoding (const PdfEncodingDifference &difference, PdfBaseEncoding baseEncoding)
	PdfDifferenceEncoding (const PdfObject &obj, bool explicitNames=false)
const PdfEncodingDifference &	GetDifferences () const
Public Member Functions inherited from mm::PdfEncodingMap
bool	TryGetNextCharCode (std::string_view::iterator &it, const std::string_view::iterator &end, PdfCharCode &codeUnit) const
bool	TryGetCharCode (char32_t codePoint, PdfCharCode &codeUnit) const
bool	TryGetCharCode (const cspan< char32_t > &codePoints, PdfCharCode &codeUnit) const
bool	TryGetCharCode (unsigned cid, PdfCharCode &codeUnit) const
bool	TryGetNextCID (std::string_view::iterator &it, const std::string_view::iterator &end, PdfCID &cid) const
bool	TryGetNextCodePoints (std::string_view::iterator &it, const std::string_view::iterator &end, std::vector< char32_t > &codePoints) const
bool	TryGetCodePoints (const PdfCharCode &codeUnit, std::vector< char32_t > &codePoints) const
bool	TryGetCIDId (const PdfCharCode &codeUnit, unsigned &id) const
virtual bool	HasCIDMapping () const
virtual bool	HasLigaturesSupport () const
bool	TryGetExportObject (PdfIndirectObjectList &objects, PdfName &name, PdfObject *&obj) const

Static Public Member Functions
static char32_t	NameToUnicodeID (const PdfName &name)
static PdfName	UnicodeIDToName (char32_t inCodePoint)

Protected Member Functions
void	getExportObject (PdfIndirectObjectList &objects, PdfName &name, PdfObject *&obj) const override
bool	tryGetCharCode (char32_t codePoint, PdfCharCode &codeUnit) const override
bool	tryGetCodePoints (const PdfCharCode &codeUnit, std::vector< char32_t > &codePoints) const override
Protected Member Functions inherited from mm::PdfEncodingMapSimple
void	appendBaseFontEntries (PdfStream &stream) const override
Protected Member Functions inherited from mm::PdfEncodingMap
virtual bool	tryGetNextCharCode (std::string_view::iterator &it, const std::string_view::iterator &end, PdfCharCode &codeUnit) const
virtual bool	tryGetCharCodeSpan (const cspan< char32_t > &ligature, PdfCharCode &codeUnit) const

Detailed Description

PdfDifferenceEncoding is an encoding, which is based on either the fonts encoding or a predefined encoding and defines differences to this base encoding.

Constructor & Destructor Documentation

PdfDifferenceEncoding() [1/2]

PdfDifferenceEncoding::PdfDifferenceEncoding	(	const PdfEncodingDifference &	difference,
		PdfBaseEncoding	baseEncoding
	)

Create a new PdfDifferenceEncoding which is based on a predefined encoding.

Parameters

difference	the differences in this encoding
eBaseEncoding	the base encoding of this font

PdfDifferenceEncoding() [2/2]

PdfDifferenceEncoding::PdfDifferenceEncoding	(	const PdfObject &	obj,
		bool	explicitNames = false
	)

Create a new PdfDifferenceEncoding from an existing object in a PDF file.

Parameters

obj	an existing differences encoding
bAutoDelete	if true the encoding is deleted by its owning font
bExplicitNames	if true, glyph names are meaningless explicit keys on the font (used for Type3 fonts)

Member Function Documentation

GetDifferences()

const PdfEncodingDifference& mm::PdfDifferenceEncoding::GetDifferences ( ) const

inline

Get read-only access to the object containing the actual differences.

Returns

the container with the actual differences

getExportObject()

void PdfDifferenceEncoding::getExportObject ( PdfIndirectObjectList &  objects, PdfName &  name, PdfObject *&  obj  ) const

overrideprotectedvirtual

Get an export object that will be used during font init

Remarks

Default implementation just throws

Reimplemented from mm::PdfEncodingMap.

NameToUnicodeID()

char32_t PdfDifferenceEncoding::NameToUnicodeID ( const PdfName &  name )

static

Convert a standard character name to a unicode code point

Parameters

name	a standard character name

Returns

an unicode code point

tryGetCharCode()

bool PdfDifferenceEncoding::tryGetCharCode ( char32_t  codePoint, PdfCharCode &  codeUnit  ) const

overrideprotectedvirtual

Try get char code unit from unicode code point

Implements mm::PdfEncodingMap.

tryGetCodePoints()

bool PdfDifferenceEncoding::tryGetCodePoints ( const PdfCharCode &  codeUnit, std::vector< char32_t > &  codePoints  ) const

overrideprotectedvirtual

Get code points from a code unit

Parameters

wantCID

true requires mapping to CID identifier, false for Unicode code points

Implements mm::PdfEncodingMap.

UnicodeIDToName()

PdfName PdfDifferenceEncoding::UnicodeIDToName ( char32_t  inCodePoint )

static

Convert an unicode code point to a standard character name

Parameters

inCodePoint

a code point

Returns

a standard character name of /.notdef if none could be found