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//========================================================================
//
// Array.h
//
// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2012 Fabio D'Urso <fabiodurso@hotmail.it>
// Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2017-2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef ARRAY_H
#define ARRAY_H
#include <atomic>
#include <mutex>
#include <vector>
#include "poppler-config.h"
#include "Object.h"
class XRef;
//------------------------------------------------------------------------
// Array
//------------------------------------------------------------------------
class Array {
public:
// Constructor.
Array(XRef *xrefA);
// Destructor.
~Array();
Array(const Array &) = delete;
Array& operator=(const Array &) = delete;
// Get number of elements.
int getLength() const { return elems.size(); }
// Copy array with new xref
Object copy(XRef *xrefA) const;
// Add an element
// elem becomes a dead object after this call
void add(Object &&elem);
// Remove an element by position
void remove(int i);
// Accessors.
Object get(int i, int recursion = 0) const;
// Same as above but if the returned object is a fetched Ref returns such Ref in returnRef, otherwise returnRef is Ref::INVALID()
Object get(int i, Ref *returnRef, int recursion = 0) const;
const Object &getNF(int i) const;
bool getString(int i, GooString *string) const;
private:
friend class Object; // for incRef/decRef
// Reference counting.
int incRef() { return ++ref; }
int decRef() { return --ref; }
XRef *xref; // the xref table for this PDF file
std::vector<Object> elems; // array of elements
std::atomic_int ref; // reference count
mutable std::recursive_mutex mutex;
};
#endif
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