PoDoFo::PdfSignOutputDevice Class Reference

#include <PdfSignOutputDevice.h>

Inheritance diagram for PoDoFo::PdfSignOutputDevice:

List of all members.

Public Member Functions
virtual void	SetSignatureSize (size_t lSignatureSize)
virtual size_t	GetSignatureSize () const
virtual const PdfData *	GetSignatureBeacon () const
virtual void	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 ()

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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

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Member Function Documentation

void PoDoFo::PdfSignOutputDevice::AdjustByteRange

(

)

[virtual]

Modify ByteRange entry according to signature position

virtual void PoDoFo::PdfSignOutputDevice::Flush

(

)

[inline, virtual]

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

Reimplemented from PoDoFo::PdfOutputDevice.

virtual size_t PoDoFo::PdfSignOutputDevice::GetLength

(

)

const [inline, virtual]

The number of bytes written to this object.

Returns:

the number of bytes written to this object.

See also:

Init

Reimplemented from PoDoFo::PdfOutputDevice.

virtual const PdfData* PoDoFo::PdfSignOutputDevice::GetSignatureBeacon

(

)

const [inline, virtual]

Return signature beacon

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.

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

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

Returns:

ErrOk on success

See also:

Write

Reimplemented from PoDoFo::PdfOutputDevice.

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

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.

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

Read data for signature

virtual void PoDoFo::PdfSignOutputDevice::Seek

(

size_t

offset

)

[inline, virtual]

Seek the device to the position offset from the begining

Parameters:

offset

from the beginning of the file

Reimplemented from PoDoFo::PdfOutputDevice.

void PoDoFo::PdfSignOutputDevice::SetSignature

(

const PdfData &

sigData

)

[virtual]

Embed real signature in the PDF

void PoDoFo::PdfSignOutputDevice::SetSignatureSize

(

size_t

lSignatureSize

)

[virtual]

Set string to lookup for

Parameters:

lSignatureSize

Total space reserved for signature

virtual size_t PoDoFo::PdfSignOutputDevice::Tell

(

)

const [inline, virtual]

Get the current offset from the beginning of the file.

Returns:

the offset form the beginning of the file.

Reimplemented from PoDoFo::PdfOutputDevice.

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

Returns:

ErrOk on success

See also:

Print

Reimplemented from PoDoFo::PdfOutputDevice.

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