PoDoFo::PdfSignOutputDevice Class Reference

#include <PdfSignOutputDevice.h>

Inheritance diagram for PoDoFo::PdfSignOutputDevice:

Public Member Functions
virtual void	SetSignatureSize (size_t lSignatureSize)
virtual size_t	GetSignatureSize () const
virtual const PdfData *	GetSignatureBeacon () const
virtual PdfArray	AdjustByteRange ()
virtual size_t	ReadForSignature (char *pBuffer, size_t lLen)
virtual void	SetSignature (const PdfData &sigData)
virtual size_t	GetLength () const
virtual void	Print (const char *pszFormat,...)
virtual void	Write (const char *pBuffer, size_t lLen)
virtual size_t	Read (char *pBuffer, size_t lLen)
virtual void	Seek (size_t offset)
virtual size_t	Tell () const
virtual void	Flush ()
Public Member Functions inherited from PoDoFo::PdfOutputDevice
	PdfOutputDevice ()
	PdfOutputDevice (const char *pszFilename, bool bTruncate=true)
	PdfOutputDevice (char *pBuffer, size_t lLen)
	PdfOutputDevice (const std::ostream *pOutStream)
	PdfOutputDevice (PdfRefCountedBuffer *pOutBuffer)
	PdfOutputDevice (std::iostream *pStream)
virtual	~PdfOutputDevice ()
virtual void	PrintV (const char *pszFormat, long lBytes, va_list argptr)
long	PrintVLen (const char *pszFormat, va_list args)

Detailed Description

Signer class

Class is used to locate place for signature in the stream. Usage:

1. Locate signature and adjust ByteRange
2. Generate signature
3. Insert new signature

Member Function Documentation

AdjustByteRange()

PdfArray PoDoFo::PdfSignOutputDevice::AdjustByteRange ( )

virtual

Modify ByteRange entry according to signature position

Flush()

virtual void PoDoFo::PdfSignOutputDevice::Flush ( )

inlinevirtual

Flush the output files buffer to disk if this devices operates on a disk.

Reimplemented from PoDoFo::PdfOutputDevice.

GetLength()

virtual size_t PoDoFo::PdfSignOutputDevice::GetLength ( ) const

inlinevirtual

The number of bytes written to this object.

Returns

the number of bytes written to this object.

See also

Init

Reimplemented from PoDoFo::PdfOutputDevice.

GetSignatureBeacon()

virtual const PdfData* PoDoFo::PdfSignOutputDevice::GetSignatureBeacon ( ) const

inlinevirtual

Return signature beacon

GetSignatureSize()

size_t PoDoFo::PdfSignOutputDevice::GetSignatureSize ( ) const

virtual

Get expected size of signature.

If reserved size if zero no signatures will be added.

Returns

Total space reserved for signature.

Print()

virtual void PoDoFo::PdfSignOutputDevice::Print ( const char *  pszFormat,   ...  )

inlinevirtual

Write to the PdfOutputDevice. Usage is as the usage of printf.

WARNING: Do not use this for doubles or floating point values as the output might depend on the current locale.

Parameters

pszFormat

a format string as you would use it with printf

See also

Write

Reimplemented from PoDoFo::PdfOutputDevice.

Read()

virtual size_t PoDoFo::PdfSignOutputDevice::Read ( char *  pBuffer, size_t  lLen  )

inlinevirtual

Read data from the device

Parameters

pBuffer	a pointer to the data buffer
lLen	length of the output buffer

Returns

Number of read bytes. Return 0 if EOF

Reimplemented from PoDoFo::PdfOutputDevice.

ReadForSignature()

size_t PoDoFo::PdfSignOutputDevice::ReadForSignature ( char *  pBuffer, size_t  lLen  )

virtual

Read data for signature

Seek()

virtual void PoDoFo::PdfSignOutputDevice::Seek ( size_t  offset )

inlinevirtual

Seek the device to the position offset from the beginning

Parameters

offset

from the beginning of the file

Reimplemented from PoDoFo::PdfOutputDevice.

SetSignature()

void PoDoFo::PdfSignOutputDevice::SetSignature ( const PdfData &  sigData )

virtual

Embed real signature in the PDF

SetSignatureSize()

void PoDoFo::PdfSignOutputDevice::SetSignatureSize ( size_t  lSignatureSize )

virtual

Set string to lookup for

Parameters

lSignatureSize

Total space reserved for signature

Tell()

virtual size_t PoDoFo::PdfSignOutputDevice::Tell ( ) const

inlinevirtual

Get the current offset from the beginning of the file.

Returns

the offset form the beginning of the file.

Reimplemented from PoDoFo::PdfOutputDevice.

Write()

void PoDoFo::PdfSignOutputDevice::Write ( const char *  pBuffer, size_t  lLen  )

virtual

Write data to the buffer. Use this call instead of Print if you want to write binary data to the PdfOutputDevice.

Parameters

pBuffer	a pointer to the data buffer
lLen	write lLen bytes of pBuffer to the PdfOutputDevice

See also

Print

Reimplemented from PoDoFo::PdfOutputDevice.