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/******************************************************************************
* $Id: pdfio.h 25562 2013-01-26 18:36:03Z rouault $
*
* Project: PDF driver
* Purpose: GDALDataset driver for PDF dataset.
* Author: Even Rouault, <even dot rouault at mines dash paris dot org>
*
******************************************************************************
* Copyright (c) 2010, Even Rouault
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#ifndef PDFIO_H_INCLUDED
#define PDFIO_H_INCLUDED
#include "cpl_vsi_virtual.h"
/* begin of poppler xpdf includes */
#include <poppler/Object.h>
#include <poppler/Stream.h>
/* end of poppler xpdf includes */
/************************************************************************/
/* VSIPDFFileStream */
/************************************************************************/
#define BUFFER_SIZE 1024
#ifdef POPPLER_0_23_OR_LATER
#define getPos_ret_type Goffset
#define getStart_ret_type Goffset
#define makeSubStream_offset_type Goffset
#define setPos_offset_type Goffset
#define moveStart_delta_type Goffset
#else
#define getPos_ret_type int
#define getStart_ret_type Guint
#define makeSubStream_offset_type Guint
#define setPos_offset_type Guint
#define moveStart_delta_type int
#endif
class VSIPDFFileStream: public BaseStream
{
public:
VSIPDFFileStream(VSILFILE* f, const char* pszFilename, Object *dictA);
VSIPDFFileStream(VSIPDFFileStream* poParent,
vsi_l_offset startA, GBool limitedA,
vsi_l_offset lengthA, Object *dictA);
virtual ~VSIPDFFileStream();
#ifdef POPPLER_0_23_OR_LATER
virtual BaseStream* copy();
#endif
virtual Stream * makeSubStream(makeSubStream_offset_type startA, GBool limitedA,
makeSubStream_offset_type lengthA, Object *dictA);
virtual getPos_ret_type getPos();
virtual getStart_ret_type getStart();
virtual void setPos(setPos_offset_type pos, int dir = 0);
virtual void moveStart(moveStart_delta_type delta);
virtual StreamKind getKind();
virtual GooString *getFileName();
virtual int getChar();
virtual int getUnfilteredChar ();
virtual int lookChar();
virtual void reset();
virtual void unfilteredReset ();
virtual void close();
private:
VSIPDFFileStream *poParent;
GooString *poFilename;
VSILFILE *f;
vsi_l_offset nStart;
int bLimited;
vsi_l_offset nLength;
vsi_l_offset nCurrentPos;
int bHasSavedPos;
vsi_l_offset nSavedPos;
GByte abyBuffer[BUFFER_SIZE];
int nPosInBuffer;
int nBufferLength;
int FillBuffer();
};
#endif // PDFIO_H_INCLUDED
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