/usr/include/podofo/base/PdfImmediateWriter.h is in libpodofo-dev 0.9.4-6.
This file is owned by root:root, with mode 0o644.
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* Copyright (C) 2007 by Dominik Seichter *
* domseichter@web.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Library General Public License as *
* published by the Free Software Foundation; either version 2 of the *
* License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
* In addition, as a special exception, the copyright holders give *
* permission to link the code of portions of this program with the *
* OpenSSL library under certain conditions as described in each *
* individual source file, and distribute linked combinations *
* including the two. *
* You must obey the GNU General Public License in all respects *
* for all of the code used other than OpenSSL. If you modify *
* file(s) with this exception, you may extend this exception to your *
* version of the file(s), but you are not obligated to do so. If you *
* do not wish to do so, delete this exception statement from your *
* version. If you delete this exception statement from all source *
* files in the program, then also delete it here. *
***************************************************************************/
#ifndef _PDF_IMMEDIATE_WRITER_H_
#define _PDF_IMMEDIATE_WRITER_H_
#include "PdfDefines.h"
#include "PdfVecObjects.h"
#include "PdfWriter.h"
namespace PoDoFo {
class PdfEncrypt;
class PdfOutputDevice;
class PdfXRef;
/** A kind of PdfWriter that writes objects with streams immediately to
* a PdfOutputDevice
*/
class PODOFO_API PdfImmediateWriter : private PdfWriter,
private PdfVecObjects::Observer,
private PdfVecObjects::StreamFactory {
public:
/** Create a new PdfWriter that writes objects with streams immediately to a PdfOutputDevice
*
* This has the advantage that large documents can be created without
* having to keep the whole document in memory.
*
* @param pDevice all stream streams are immediately written to this output device
* while the document is created.
* @param pVecObjects a vector of objects containing the objects which are written to disk
* @param pTrailer the trailer object
* @param eVersion the PDF version of the document to write.
* The PDF version can only be set in the constructor
* as it is the first item written to the document on disk.
* @param pEncrypt pointer to an encryption object or NULL. If not NULL
* the PdfEncrypt object will be copied and used to encrypt the
* created document.
* @param eWriteMode additional options for writing the pdf
*/
PdfImmediateWriter( PdfOutputDevice* pDevice, PdfVecObjects* pVecObjects, const PdfObject* pTrailer,
EPdfVersion eVersion = ePdfVersion_1_5, PdfEncrypt* pEncrypt = NULL,
EPdfWriteMode eWriteMode = ePdfWriteMode_Default );
~PdfImmediateWriter();
/** Get the write mode used for wirting the PDF
* \returns the write mode
*/
inline EPdfWriteMode GetWriteMode() const;
/** Get the PDF version of the document
* The PDF version can only be set in the constructor
* as it is the first item written to the document on disk
*
* \returns EPdfVersion version of the pdf document
*/
inline EPdfVersion GetPdfVersion() const;
private:
void WriteObject( const PdfObject* pObject );
/** Called when the PdfVecObjects we observer is deleted.
*/
void ParentDestructed();
/** Finish the PDF file.
* I.e. write the XRef and close the output device.
*/
void Finish();
/** Called whenever appending to a stream is started.
* \param pStream the stream object the user currently writes to.
*/
void BeginAppendStream( const PdfStream* pStream );
/** Called whenever appending to a stream has ended.
* \param pStream the stream object the user currently writes to.
*/
void EndAppendStream( const PdfStream* pStream );
/** Creates a stream object
*
* \param pParent parent object
*
* \returns a new stream object
*/
PdfStream* CreateStream( PdfObject* pParent );
/** Assume the stream for the last object has
* been written complete.
* Therefore close the stream of the object
* now so that the next object can be written
* to disk
*/
void FinishLastObject();
private:
PdfVecObjects* m_pParent;
PdfOutputDevice* m_pDevice;
PdfXRef* m_pXRef;
PdfObject* m_pLast;
bool m_bOpenStream;
};
// -----------------------------------------------------
//
// -----------------------------------------------------
inline EPdfWriteMode PdfImmediateWriter::GetWriteMode() const
{
return PdfWriter::GetWriteMode();
}
// -----------------------------------------------------
//
// -----------------------------------------------------
inline EPdfVersion PdfImmediateWriter::GetPdfVersion() const
{
return PdfWriter::GetPdfVersion();
}
};
#endif /* _PDF_IMMEDIATE_WRITER_H_ */
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