wxPdfCffDecoder Class Reference

Class representing CFF decoder for charstrings of type 1 and 2. (For internal use only) More...

#include <pdfcffdecoder.h>

Public Member Functions
	wxPdfCffDecoder ()
	Default constructor.
	wxPdfCffDecoder (wxPdfCffIndexArray *globalSubrIndex, wxPdfSortedArrayInt *hGlobalSubrsUsed, wxArrayInt *lGlobalSubrsUsed)
	Constructor.
virtual	~wxPdfCffDecoder ()
	Default destructor.
bool	GetCharWidthAndComposite (wxPdfCffIndexElement &charstring, int &width, bool &isComposite, int &bchar, int &achar)
	Get character width and composites.
int	CalcBias (int nSubrs)
	Calculate the bias.
void	ReadASubr (wxInputStream *stream, int begin, int end, int globalBias, int localBias, wxPdfSortedArrayInt &hSubrsUsed, wxArrayInt &lSubrsUsed, wxPdfCffIndexArray &localSubIndex)
	Read a subroutine from an input stream.

Protected Member Functions
unsigned char	ReadByte (wxInputStream *stream)
	Read a byte from an input stream.
short	ReadShort (wxInputStream *stream)
	Read a short integer from an input stream.
int	ReadInt (wxInputStream *stream)
	Read an integer from an input stream.
void	HandleStack ()
	Handle the stack based on the last operator on stack.
int	StackOpp ()
	Get the type of the last operator on stack.
void	EmptyStack ()
	Empty the stack.
void	PopStack ()
	Pop an entry from the stack.
void	PushStack ()
	Push an entry on the stack.
void	ReadCommand (wxInputStream *stream)
	Read a command from the input stream.
int	CalcHints (wxInputStream *stream, int begin, int end, int globalBias, int localBias, wxPdfCffIndexArray &localSubIndex)
	Calculate the hints.

Detailed Description

Class representing CFF decoder for charstrings of type 1 and 2. (For internal use only)

Constructor & Destructor Documentation

wxPdfCffDecoder() [1/2]

wxPdfCffDecoder::wxPdfCffDecoder

(

)

Default constructor.

wxPdfCffDecoder() [2/2]

wxPdfCffDecoder::wxPdfCffDecoder	(	wxPdfCffIndexArray *	globalSubrIndex,
		wxPdfSortedArrayInt *	hGlobalSubrsUsed,
		wxArrayInt *	lGlobalSubrsUsed )

Constructor.

Parameters

globalSubrIndex	the global subroutine index
hGlobalSubrsUsed	sorted list of used global subroutines
lGlobalSubrsUsed	unordered list of used global subroutines

~wxPdfCffDecoder()

virtual wxPdfCffDecoder::~wxPdfCffDecoder ( )

virtual

Default destructor.

Member Function Documentation

CalcBias()

int wxPdfCffDecoder::CalcBias

(

int

nSubrs

)

Calculate the bias.

Parameters

nSubrs

the number of subroutines

Returns

the bias

CalcHints()

int wxPdfCffDecoder::CalcHints ( wxInputStream * stream, int begin, int end, int globalBias, int localBias, wxPdfCffIndexArray & localSubIndex )

protected

Calculate the hints.

EmptyStack()

void wxPdfCffDecoder::EmptyStack ( )

protected

Empty the stack.

GetCharWidthAndComposite()

bool wxPdfCffDecoder::GetCharWidthAndComposite	(	wxPdfCffIndexElement &	charstring,
		int &	width,
		bool &	isComposite,
		int &	bchar,
		int &	achar )

Get character width and composites.

From a charstring entry the character width and - if appropriate - the composites are extracted.

Parameters

[in]	charstring	the charstring entry
[out]	width	the character width
[out]	isComposite	flag whether the charstring describes a composite
[out]	bchar	the base character of the composite
[out]	achar	the accent character of the composite

HandleStack()

void wxPdfCffDecoder::HandleStack ( )

protected

Handle the stack based on the last operator on stack.

PopStack()

void wxPdfCffDecoder::PopStack ( )

protected

Pop an entry from the stack.

PushStack()

void wxPdfCffDecoder::PushStack ( )

protected

Push an entry on the stack.

ReadASubr()

void wxPdfCffDecoder::ReadASubr	(	wxInputStream *	stream,
		int	begin,
		int	end,
		int	globalBias,
		int	localBias,
		wxPdfSortedArrayInt &	hSubrsUsed,
		wxArrayInt &	lSubrsUsed,
		wxPdfCffIndexArray &	localSubIndex )

Read a subroutine from an input stream.

Parameters

stream	the input stream
begin	start position of the subroutine in the input stream
end	end position of the subroutine in the input stream
globalBias	value of the global bias
localBias	value of the local bias
hSubrsUsed	sorted list of used subroutines
lSubrsUsed	unordered list of used subroutines
localSubIndex	the local subroutine index

ReadByte()

unsigned char wxPdfCffDecoder::ReadByte ( wxInputStream * stream )

protected

Read a byte from an input stream.

ReadCommand()

void wxPdfCffDecoder::ReadCommand ( wxInputStream * stream )

protected

Read a command from the input stream.

ReadInt()

int wxPdfCffDecoder::ReadInt ( wxInputStream * stream )

protected

Read an integer from an input stream.

ReadShort()

short wxPdfCffDecoder::ReadShort ( wxInputStream * stream )

protected

Read a short integer from an input stream.

StackOpp()

int wxPdfCffDecoder::StackOpp ( )

protected

Get the type of the last operator on stack.

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

• pdfcffdecoder.h