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//========================================================================
//
// Hints.h
//
// This file is licensed under the GPLv2 or later
//
// Copyright 2010 Hib Eris <hib@hiberis.nl>
// Copyright 2010, 2013, 2016, 2018 Albert Astals Cid <aacid@kde.org>
// Copyright 2013 Adrian Johnson <ajohnson@redneon.com>
//
//========================================================================
#ifndef HINTS_H
#define HINTS_H
#include <cstring>
#include <vector>
#include "PDFDoc.h"
class Stream;
class BaseStream;
class Linearization;
class XRef;
//------------------------------------------------------------------------
// Hints
//------------------------------------------------------------------------
class Hints
{
public:
Hints(BaseStream *str, Linearization *linearization, XRef *xref, SecurityHandler *secHdlr);
~Hints();
Hints(const Hints &) = delete;
Hints &operator=(const Hints &) = delete;
bool isOk() const;
int getPageObjectNum(int page);
Goffset getPageOffset(int page);
private:
void readTables(BaseStream *str, Linearization *linearization, XRef *xref, SecurityHandler *secHdlr);
bool readPageOffsetTable(Stream *str);
bool readSharedObjectsTable(Stream *str);
unsigned int hintsOffset;
unsigned int hintsLength;
unsigned int hintsOffset2;
unsigned int hintsLength2;
unsigned int mainXRefEntriesOffset;
int nPages;
int pageFirst;
int pageObjectFirst;
Goffset pageOffsetFirst;
unsigned int pageEndFirst;
unsigned int nObjectLeast;
unsigned int objectOffsetFirst;
unsigned int nBitsDiffObjects;
unsigned int pageLengthLeast;
unsigned int nBitsDiffPageLength;
unsigned int OffsetStreamLeast;
unsigned int nBitsOffsetStream;
unsigned int lengthStreamLeast;
unsigned int nBitsLengthStream;
unsigned int nBitsNumShared;
unsigned int nBitsShared;
unsigned int nBitsNumerator;
unsigned int denominator;
unsigned int *nObjects;
int *pageObjectNum;
unsigned int *xRefOffset;
unsigned int *pageLength;
Goffset *pageOffset;
unsigned int *numSharedObject;
unsigned int **sharedObjectId;
unsigned int *groupLength;
unsigned int *groupOffset;
unsigned int *groupHasSignature;
unsigned int *groupNumObjects;
unsigned int *groupXRefOffset;
bool ok;
};
#endif