| 1 | //======================================================================== |
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| 2 | // |
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| 3 | // Hints.h |
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| 4 | // |
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| 5 | // This file is licensed under the GPLv2 or later |
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| 6 | // |
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| 7 | // Copyright 2010 Hib Eris <hib@hiberis.nl> |
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| 8 | // Copyright 2010, 2013, 2016, 2018 Albert Astals Cid <aacid@kde.org> |
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| 9 | // Copyright 2013 Adrian Johnson <ajohnson@redneon.com> |
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| 10 | // |
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| 11 | //======================================================================== |
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| 12 | |
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| 13 | #ifndef HINTS_H |
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| 14 | #define HINTS_H |
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| 15 | |
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| 16 | #include <cstring> |
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| 17 | #include <vector> |
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| 18 | #include "PDFDoc.h" |
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| 19 | |
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| 20 | class Stream; |
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| 21 | class BaseStream; |
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| 22 | class Linearization; |
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| 23 | class XRef; |
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| 24 | |
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| 25 | //------------------------------------------------------------------------ |
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| 26 | // Hints |
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| 27 | //------------------------------------------------------------------------ |
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| 28 | |
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| 29 | class Hints |
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| 30 | { |
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| 31 | public: |
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| 32 | Hints(BaseStream *str, Linearization *linearization, XRef *xref, SecurityHandler *secHdlr); |
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| 33 | ~Hints(); |
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| 34 | |
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| 35 | Hints(const Hints &) = delete; |
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| 36 | Hints &operator=(const Hints &) = delete; |
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| 37 | |
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| 38 | bool isOk() const; |
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| 39 | |
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| 40 | int getPageObjectNum(int page); |
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| 41 | Goffset getPageOffset(int page); |
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| 42 | |
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| 43 | private: |
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| 44 | void readTables(BaseStream *str, Linearization *linearization, XRef *xref, SecurityHandler *secHdlr); |
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| 45 | bool readPageOffsetTable(Stream *str); |
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| 46 | bool readSharedObjectsTable(Stream *str); |
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| 47 | |
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| 48 | unsigned int hintsOffset; |
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| 49 | unsigned int hintsLength; |
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| 50 | unsigned int hintsOffset2; |
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| 51 | unsigned int hintsLength2; |
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| 52 | unsigned int mainXRefEntriesOffset; |
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| 53 | |
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| 54 | int nPages; |
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| 55 | int pageFirst; |
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| 56 | int pageObjectFirst; |
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| 57 | Goffset pageOffsetFirst; |
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| 58 | unsigned int pageEndFirst; |
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| 59 | |
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| 60 | unsigned int nObjectLeast; |
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| 61 | unsigned int objectOffsetFirst; |
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| 62 | unsigned int nBitsDiffObjects; |
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| 63 | unsigned int pageLengthLeast; |
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| 64 | unsigned int nBitsDiffPageLength; |
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| 65 | unsigned int OffsetStreamLeast; |
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| 66 | unsigned int nBitsOffsetStream; |
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| 67 | unsigned int lengthStreamLeast; |
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| 68 | unsigned int nBitsLengthStream; |
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| 69 | unsigned int nBitsNumShared; |
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| 70 | unsigned int nBitsShared; |
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| 71 | unsigned int nBitsNumerator; |
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| 72 | unsigned int denominator; |
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| 73 | |
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| 74 | unsigned int *nObjects; |
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| 75 | int *pageObjectNum; |
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| 76 | unsigned int *xRefOffset; |
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| 77 | unsigned int *pageLength; |
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| 78 | Goffset *pageOffset; |
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| 79 | unsigned int *numSharedObject; |
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| 80 | unsigned int **sharedObjectId; |
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| 81 | |
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| 82 | unsigned int *groupLength; |
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| 83 | unsigned int *groupOffset; |
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| 84 | unsigned int *groupHasSignature; |
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| 85 | unsigned int *groupNumObjects; |
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| 86 | unsigned int *groupXRefOffset; |
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| 87 | bool ok; |
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| 88 | }; |
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| 89 | |
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| 90 | #endif |
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| 91 | |
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