| 1 | //======================================================================== |
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| 2 | // |
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| 3 | // Array.h |
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| 4 | // |
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| 5 | // Copyright 1996-2003 Glyph & Cog, LLC |
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| 6 | // |
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| 7 | //======================================================================== |
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| 8 | |
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| 9 | //======================================================================== |
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| 10 | // |
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| 11 | // Modified under the Poppler project - http://poppler.freedesktop.org |
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| 12 | // |
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| 13 | // All changes made under the Poppler project to this file are licensed |
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| 14 | // under GPL version 2 or later |
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| 15 | // |
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| 16 | // Copyright (C) 2005 Kristian Høgsberg <krh@redhat.com> |
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| 17 | // Copyright (C) 2012 Fabio D'Urso <fabiodurso@hotmail.it> |
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| 18 | // Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de> |
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| 19 | // Copyright (C) 2017-2019, 2021 Albert Astals Cid <aacid@kde.org> |
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| 20 | // Copyright (C) 2017 Adrian Johnson <ajohnson@redneon.com> |
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| 21 | // Copyright (C) 2018, 2019 Adam Reichold <adam.reichold@t-online.de> |
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| 22 | // |
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| 23 | // To see a description of the changes please see the Changelog file that |
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| 24 | // came with your tarball or type make ChangeLog if you are building from git |
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| 25 | // |
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| 26 | //======================================================================== |
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| 27 | |
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| 28 | #ifndef ARRAY_H |
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| 29 | #define ARRAY_H |
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| 30 | |
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| 31 | #include <atomic> |
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| 32 | #include <mutex> |
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| 33 | #include <vector> |
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| 34 | |
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| 35 | #include "poppler-config.h" |
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| 36 | #include "poppler_private_export.h" |
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| 37 | #include "Object.h" |
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| 38 | |
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| 39 | class XRef; |
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| 40 | |
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| 41 | //------------------------------------------------------------------------ |
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| 42 | // Array |
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| 43 | //------------------------------------------------------------------------ |
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| 44 | |
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| 45 | class POPPLER_PRIVATE_EXPORT Array |
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| 46 | { |
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| 47 | public: |
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| 48 | // Constructor. |
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| 49 | explicit Array(XRef *xrefA); |
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| 50 | |
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| 51 | // Destructor. |
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| 52 | ~Array(); |
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| 53 | |
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| 54 | Array(const Array &) = delete; |
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| 55 | Array &operator=(const Array &) = delete; |
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| 56 | |
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| 57 | // Get number of elements. |
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| 58 | int getLength() const { return elems.size(); } |
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| 59 | |
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| 60 | // Copy array with new xref |
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| 61 | Array *copy(XRef *xrefA) const; |
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| 62 | |
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| 63 | Array *deepCopy() const; |
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| 64 | |
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| 65 | // Add an element |
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| 66 | // elem becomes a dead object after this call |
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| 67 | void add(Object &&elem); |
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| 68 | |
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| 69 | // Remove an element by position |
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| 70 | void remove(int i); |
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| 71 | |
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| 72 | // Accessors. |
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| 73 | Object get(int i, int recursion = 0) const; |
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| 74 | // Same as above but if the returned object is a fetched Ref returns such Ref in returnRef, otherwise returnRef is Ref::INVALID() |
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| 75 | Object get(int i, Ref *returnRef, int recursion = 0) const; |
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| 76 | const Object &getNF(int i) const; |
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| 77 | bool getString(int i, GooString *string) const; |
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| 78 | |
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| 79 | private: |
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| 80 | friend class Object; // for incRef/decRef |
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| 81 | |
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| 82 | // Reference counting. |
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| 83 | int incRef() { return ++ref; } |
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| 84 | int decRef() { return --ref; } |
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| 85 | |
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| 86 | XRef *xref; // the xref table for this PDF file |
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| 87 | std::vector<Object> elems; // array of elements |
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| 88 | std::atomic_int ref; // reference count |
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| 89 | mutable std::recursive_mutex mutex; |
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| 90 | }; |
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| 91 | |
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| 92 | #endif |
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| 93 | |
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