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File indexing completed on 2025-12-10 10:23:45
0001 //======================================================================== 0002 // 0003 // Array.h 0004 // 0005 // Copyright 1996-2003 Glyph & Cog, LLC 0006 // 0007 //======================================================================== 0008 0009 //======================================================================== 0010 // 0011 // Modified under the Poppler project - http://poppler.freedesktop.org 0012 // 0013 // All changes made under the Poppler project to this file are licensed 0014 // under GPL version 2 or later 0015 // 0016 // Copyright (C) 2005 Kristian Høgsberg <krh@redhat.com> 0017 // Copyright (C) 2012 Fabio D'Urso <fabiodurso@hotmail.it> 0018 // Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de> 0019 // Copyright (C) 2017-2019, 2021 Albert Astals Cid <aacid@kde.org> 0020 // Copyright (C) 2017 Adrian Johnson <ajohnson@redneon.com> 0021 // Copyright (C) 2018, 2019 Adam Reichold <adam.reichold@t-online.de> 0022 // 0023 // To see a description of the changes please see the Changelog file that 0024 // came with your tarball or type make ChangeLog if you are building from git 0025 // 0026 //======================================================================== 0027 0028 #ifndef ARRAY_H 0029 #define ARRAY_H 0030 0031 #include <atomic> 0032 #include <mutex> 0033 #include <vector> 0034 0035 #include "poppler-config.h" 0036 #include "poppler_private_export.h" 0037 #include "Object.h" 0038 0039 class XRef; 0040 0041 //------------------------------------------------------------------------ 0042 // Array 0043 //------------------------------------------------------------------------ 0044 0045 class POPPLER_PRIVATE_EXPORT Array 0046 { 0047 public: 0048 // Constructor. 0049 explicit Array(XRef *xrefA); 0050 0051 // Destructor. 0052 ~Array(); 0053 0054 Array(const Array &) = delete; 0055 Array &operator=(const Array &) = delete; 0056 0057 // Get number of elements. 0058 int getLength() const { return elems.size(); } 0059 0060 // Copy array with new xref 0061 Array *copy(XRef *xrefA) const; 0062 0063 Array *deepCopy() const; 0064 0065 // Add an element 0066 // elem becomes a dead object after this call 0067 void add(Object &&elem); 0068 0069 // Remove an element by position 0070 void remove(int i); 0071 0072 // Accessors. 0073 Object get(int i, int recursion = 0) const; 0074 // Same as above but if the returned object is a fetched Ref returns such Ref in returnRef, otherwise returnRef is Ref::INVALID() 0075 Object get(int i, Ref *returnRef, int recursion = 0) const; 0076 const Object &getNF(int i) const; 0077 bool getString(int i, GooString *string) const; 0078 0079 private: 0080 friend class Object; // for incRef/decRef 0081 0082 // Reference counting. 0083 int incRef() { return ++ref; } 0084 int decRef() { return --ref; } 0085 0086 XRef *xref; // the xref table for this PDF file 0087 std::vector<Object> elems; // array of elements 0088 std::atomic_int ref; // reference count 0089 mutable std::recursive_mutex mutex; 0090 }; 0091 0092 #endif
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