PoDoFo::PdfDifferenceEncoding Class Reference

#include <PdfDifferenceEncoding.h>

Inheritance diagram for PoDoFo::PdfDifferenceEncoding:

Public Member Functions
	PdfDifferenceEncoding (const PdfDifferenceList &difference, const PdfEncodingMapConstPtr &baseEncoding)
const PdfDifferenceList &	GetDifferences () const
Public Member Functions inherited from PoDoFo::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 unicodeview &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
PdfEncodingMapType	GetType () const
virtual bool	IsBuiltinEncoding () const
virtual bool	HasLigaturesSupport () const
bool	TryGetExportObject (PdfIndirectObjectList &objects, PdfName &name, PdfObject *&obj) const

Static Public Member Functions
static std::unique_ptr< PdfDifferenceEncoding >	Create (const PdfObject &obj, const PdfFontMetrics &metrics)
static char32_t	NameToCodePoint (const PdfName &name)
static PdfName	CodePointToName (char32_t codePoint)

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 PoDoFo::PdfEncodingMapOneByte
void	AppendToUnicodeEntries (OutputStream &stream, charbuff &temp) const override
void	AppendCIDMappingEntries (OutputStream &stream, const PdfFont &font, charbuff &temp) const override
Protected Member Functions inherited from PoDoFo::PdfEncodingMap
virtual bool	tryGetNextCharCode (std::string_view::iterator &it, const std::string_view::iterator &end, PdfCharCode &codeUnit) const
virtual bool	tryGetCharCodeSpan (const unicodeview &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()

PdfDifferenceEncoding::PdfDifferenceEncoding	(	const PdfDifferenceList &	difference,
		const PdfEncodingMapConstPtr &	baseEncoding )

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

Parameters

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

Member Function Documentation

CodePointToName()

PdfName PdfDifferenceEncoding::CodePointToName ( char32_t codePoint )

static

Convert an unicode code point to a standard character name

Parameters

codePoint

a code point

Returns

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

Create()

unique_ptr< PdfDifferenceEncoding > PdfDifferenceEncoding::Create ( const PdfObject & obj, const PdfFontMetrics & metrics )

static

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

Parameters

obj	object for the difference encoding
metrics	an existing font metrics

GetDifferences()

const PdfDifferenceList & PoDoFo::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 PoDoFo::PdfEncodingMap.

NameToCodePoint()

char32_t PdfDifferenceEncoding::NameToCodePoint ( 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 PoDoFo::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 PoDoFo::PdfEncodingMap.