PdfIdentityEncoding is a two-byte encoding which can be used with TrueType fonts to represent all characters present in a font. More...

#include <PdfIdentityEncoding.h>

Inheritance diagram for PoDoFo::PdfIdentityEncoding:

Public Member Functions
	PdfIdentityEncoding (unsigned char codeSpaceSize)
	Create a new PdfIdentityEncoding. More...

	PdfIdentityEncoding (PdfIdentityOrientation orientation)
	Create a standard 2 bytes CID PdfIdentityEncoding.

const PdfEncodingLimits &	GetLimits () const override

PdfPredefinedEncodingType	GetPredefinedEncodingType () const override
	True if the encoding is builtin in a font program.

Public Member Functions inherited from PoDoFo::PdfEncodingMap
bool	TryGetNextCharCode (std::string_view::iterator &it, const std::string_view::iterator &end, PdfCharCode &codeUnit) const
	Try decode next char code from utf8 string range.

bool	TryGetCharCode (char32_t codePoint, PdfCharCode &codeUnit) const
	Try get next char code unit from unicode code point.

bool	TryGetCharCode (const unicodeview &codePoints, PdfCharCode &codeUnit) const
	Get the char code from a span of unicode code points. More...

bool	TryGetCharCode (unsigned cid, PdfCharCode &codeUnit) const
	Try get next char code unit from cid.

bool	TryGetNextCID (std::string_view::iterator &it, const std::string_view::iterator &end, PdfCID &cid) const
	Try decode next cid from from encoded string range.

bool	TryGetNextCodePoints (std::string_view::iterator &it, const std::string_view::iterator &end, CodePointSpan &codePoints) const
	Try decode next code points from encoded string range.

bool	TryGetCodePoints (const PdfCharCode &codeUnit, CodePointSpan &codePoints) const
	Try get code points from char code unit. More...

PdfEncodingMapType	GetType () const
	Type of encoding, may be Simple or CMap. More...

virtual bool	HasLigaturesSupport () const
	True if the encoding has ligatures support.

bool	TryGetExportObject (PdfIndirectObjectList &objects, PdfName &name, PdfObject *&obj) const
	Get an export object that will be used during font init. More...

Protected Member Functions
bool	tryGetCharCode (char32_t codePoint, PdfCharCode &codeUnit) const override
	Try get char code unit from unicode code point.

bool	tryGetCodePoints (const PdfCharCode &codeUnit, const unsigned *cidId, CodePointSpan &codePoints) const override
	Get code points from a code unit. More...

void	getExportObject (PdfIndirectObjectList &objects, PdfName &name, PdfObject *&obj) const override
	Get an export object that will be used during font init. More...

void	AppendToUnicodeEntries (OutputStream &stream, charbuff &temp) const override
	During a WriteToUnicodeCMap append "beginbfchar" and "beginbfrange" entries. More...

void	AppendCIDMappingEntries (OutputStream &stream, const PdfFont &font, charbuff &temp) const override
	During a PdfEncoding::ExportToFont() append "begincidchar" and/or "begincidrange" entries. More...

Protected Member Functions inherited from PoDoFo::PdfEncodingMap
virtual bool	tryGetNextCharCode (std::string_view::iterator &it, const std::string_view::iterator &end, PdfCharCode &codeUnit) const
	Try get next char code unit from a utf8 string range. More...

virtual bool	tryGetCharCodeSpan (const unicodeview &ligature, PdfCharCode &codeUnit) const
	Try get next char code unit from a ligature. More...

virtual int	GetWModeRaw () const
	A code that specifies the writing mode for any CIDFont with which this map is combined (make sense when this is a CMap) More...

virtual void	AppendCodeSpaceRange (OutputStream &stream, charbuff &temp) const

Friends
class	PdfEncodingMapFactory

Additional Inherited Members
Static Protected Member Functions inherited from PoDoFo::PdfEncodingMap
static void	AppendUTF16CodeTo (OutputStream &stream, char32_t codePoint, std::u16string &u16tmp)

static void	AppendUTF16CodeTo (OutputStream &stream, const unicodeview &codePoints, std::u16string &u16tmp)

Detailed Description

PdfIdentityEncoding is a two-byte encoding which can be used with TrueType fonts to represent all characters present in a font.

If the font contains all unicode glyphs, PdfIdentityEncoding will support all unicode characters.

Constructor & Destructor Documentation

◆ PdfIdentityEncoding()

PdfIdentityEncoding::PdfIdentityEncoding ( unsigned char codeSpaceSize )

Create a new PdfIdentityEncoding.

Parameters

codeSpaceSize size of the codespace size

Member Function Documentation

◆ AppendCIDMappingEntries()

void PdfIdentityEncoding::AppendCIDMappingEntries	(	OutputStream &	stream,
		const PdfFont &	font,
		charbuff &	temp
	)		const

overrideprotectedvirtual

During a PdfEncoding::ExportToFont() append "begincidchar" and/or "begincidrange" entries.

See Adobe tecnichal notes #5014\

To be called by PdfEncoding

Implements PoDoFo::PdfEncodingMap.

◆ AppendToUnicodeEntries()

void PdfIdentityEncoding::AppendToUnicodeEntries	(	OutputStream &	stream,
		charbuff &	temp
	)		const

overrideprotectedvirtual

During a WriteToUnicodeCMap append "beginbfchar" and "beginbfrange" entries.

"bf" stands for Base Font, see Adobe tecnichal notes #5014

To be called by PdfEncoding

Implements PoDoFo::PdfEncodingMap.

◆ getExportObject()

void PdfIdentityEncoding::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.

◆ tryGetCodePoints()

bool PdfIdentityEncoding::tryGetCodePoints	(	const PdfCharCode &	codeUnit,
		const unsigned *	cidId,
		CodePointSpan &	codePoints
	)		const

overrideprotectedvirtual

Get code points from a code unit.

Parameters

cidId CID identifier that if available some encodings can benefit to fetch code points faster

Implements PoDoFo::PdfEncodingMap.

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

src/podofo/main/PdfIdentityEncoding.h
src/podofo/main/PdfIdentityEncoding.cpp

Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ PdfIdentityEncoding()

Member Function Documentation

◆ AppendCIDMappingEntries()

◆ AppendToUnicodeEntries()

◆ getExportObject()

◆ tryGetCodePoints()