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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FPDFAPI_PARSER_CPDF_INDIRECT_OBJECT_HOLDER_H_
#define CORE_FPDFAPI_PARSER_CPDF_INDIRECT_OBJECT_HOLDER_H_
#include <map>
#include <memory>
#include "core/fpdfapi/parser/cpdf_object.h"
#include "core/fxcrt/cfx_string_pool_template.h"
#include "core/fxcrt/cfx_weak_ptr.h"
#include "core/fxcrt/fx_system.h"
class CPDF_Array;
class CPDF_Dictionary;
class CPDF_Stream;
class CPDF_IndirectObjectHolder {
public:
using const_iterator =
std::map<uint32_t, std::unique_ptr<CPDF_Object>>::const_iterator;
CPDF_IndirectObjectHolder();
virtual ~CPDF_IndirectObjectHolder();
CPDF_Object* GetIndirectObject(uint32_t objnum) const;
CPDF_Object* GetOrParseIndirectObject(uint32_t objnum);
void DeleteIndirectObject(uint32_t objnum);
// Take ownership of |pObj|, returns unowned pointer to it.
CPDF_Object* AddIndirectObject(UniqueObject pObj);
// Adds and owns a new object, returns unowned pointer to it.
CPDF_Array* AddIndirectArray();
CPDF_Dictionary* AddIndirectDictionary();
CPDF_Dictionary* AddIndirectDictionary(
const CFX_WeakPtr<CFX_ByteStringPool>& pPool);
CPDF_Stream* AddIndirectStream();
CPDF_Stream* AddIndirectStream(uint8_t* pData,
uint32_t size,
CPDF_Dictionary* pDict);
bool ReplaceIndirectObjectIfHigherGeneration(uint32_t objnum,
UniqueObject pObj);
uint32_t GetLastObjNum() const { return m_LastObjNum; }
void SetLastObjNum(uint32_t objnum) { m_LastObjNum = objnum; }
const_iterator begin() const { return m_IndirectObjs.begin(); }
const_iterator end() const { return m_IndirectObjs.end(); }
protected:
virtual CPDF_Object* ParseIndirectObject(uint32_t objnum);
private:
uint32_t m_LastObjNum;
// Ordinary deleter, not Release().
std::map<uint32_t, std::unique_ptr<CPDF_Object>> m_IndirectObjs;
};
#endif // CORE_FPDFAPI_PARSER_CPDF_INDIRECT_OBJECT_HOLDER_H_
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