Basic PdfEncodingMap implementation using a PdfCharCodeMap. More...

#include <PdfEncodingMap.h>

Inheritance diagram for PoDoFo::PdfEncodingMapBase:

Public Member Functions
const PdfCharCodeMap &	GetCharMap () const

const PdfEncodingLimits &	GetLimits () const override

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.

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.

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

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

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

Protected Member Functions
	PdfEncodingMapBase (PdfCharCodeMap &&map, PdfEncodingMapType type)

bool	tryGetNextCharCode (std::string_view::iterator &it, const std::string_view::iterator &end, PdfCharCode &codeUnit) const override
	Try get next char code unit from a utf8 string range.

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

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.

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

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

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

Protected Member Functions inherited from PoDoFo::PdfEncodingMap
virtual void	getExportObject (PdfIndirectObjectList &objects, PdfName &name, PdfObject *&obj) const
	Get an export object that will be used during font init.

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)

Friends
class	PdfDynamicEncodingMap

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

Basic PdfEncodingMap implementation using a PdfCharCodeMap.

Member Function Documentation

◆ AppendCIDMappingEntries()

void PdfEncodingMapBase::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.

◆ AppendCodeSpaceRange()

void PdfEncodingMapBase::AppendCodeSpaceRange	(	OutputStream &	stream,
		charbuff &	temp
	)		const

overrideprotectedvirtual

Reimplemented from PoDoFo::PdfEncodingMap.

◆ AppendToUnicodeEntries()

void PdfEncodingMapBase::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.

◆ GetLimits()

const PdfEncodingLimits & PdfEncodingMapBase::GetLimits ( ) const

overridevirtual

Implements PoDoFo::PdfEncodingMap.

◆ tryGetCharCode()

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

overrideprotectedvirtual

Try get char code unit from unicode code point.

Implements PoDoFo::PdfEncodingMap.

◆ tryGetCharCodeSpan()

bool PdfEncodingMapBase::tryGetCharCodeSpan	(	const unicodeview &	ligature,
		PdfCharCode &	codeUnit
	)		const

overrideprotectedvirtual

Try get next char code unit from a ligature.

Parameters

ligature the span has at least 2 unicode code points

Remarks: Default implementation just throws

Reimplemented from PoDoFo::PdfEncodingMap.

◆ tryGetCodePoints()

bool PdfEncodingMapBase::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.

◆ tryGetNextCharCode()

bool PdfEncodingMapBase::tryGetNextCharCode	(	std::string_view::iterator &	it,
		const std::string_view::iterator &	end,
		PdfCharCode &	codeUnit
	)		const

overrideprotectedvirtual

Try get next char code unit from a utf8 string range.

Remarks: Default implementation just throws

Reimplemented from PoDoFo::PdfEncodingMap.

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

src/podofo/main/PdfEncodingMap.h
src/podofo/main/PdfEncodingMap.cpp

Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ AppendCIDMappingEntries()

◆ AppendCodeSpaceRange()

◆ AppendToUnicodeEntries()

◆ GetLimits()

◆ tryGetCharCode()

◆ tryGetCharCodeSpan()

◆ tryGetCodePoints()

◆ tryGetNextCharCode()