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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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