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| 1 // Copyright 2016 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #ifndef CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_INDIRECT_OBJECT_HOLDER_H_ | |
| 8 #define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_INDIRECT_OBJECT_HOLDER_H_ | |
| 9 | |
| 10 #include <map> | |
| 11 #include <memory> | |
| 12 | |
| 13 #include "core/fxcrt/include/fx_system.h" | |
| 14 | |
| 15 class CPDF_Object; | |
| 16 | |
| 17 class CPDF_IndirectObjectHolder { | |
| 18 public: | |
| 19 using const_iterator = | |
| 20 std::map<uint32_t, std::unique_ptr<CPDF_Object>>::const_iterator; | |
| 21 | |
| 22 CPDF_IndirectObjectHolder(); | |
| 23 virtual ~CPDF_IndirectObjectHolder(); | |
| 24 | |
| 25 CPDF_Object* GetIndirectObject(uint32_t objnum) const; | |
| 26 CPDF_Object* GetOrParseIndirectObject(uint32_t objnum); | |
| 27 void ReleaseIndirectObject(uint32_t objnum); | |
| 28 | |
| 29 // Take ownership of |pObj|. | |
| 30 uint32_t AddIndirectObject(CPDF_Object* pObj); | |
| 31 bool ReplaceIndirectObjectIfHigherGeneration(uint32_t objnum, | |
| 32 CPDF_Object* pObj); | |
| 33 | |
| 34 uint32_t GetLastObjNum() const { return m_LastObjNum; } | |
| 35 void SetLastObjNum(uint32_t objnum) { m_LastObjNum = objnum; } | |
| 36 | |
| 37 const_iterator begin() const { return m_IndirectObjs.begin(); } | |
| 38 const_iterator end() const { return m_IndirectObjs.end(); } | |
| 39 | |
| 40 protected: | |
| 41 virtual CPDF_Object* ParseIndirectObject(uint32_t objnum); | |
| 42 | |
| 43 private: | |
| 44 uint32_t m_LastObjNum; | |
| 45 std::map<uint32_t, std::unique_ptr<CPDF_Object>> m_IndirectObjs; | |
| 46 }; | |
| 47 | |
| 48 #endif // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_INDIRECT_OBJECT_HOLDER_H_ | |
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