Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 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 | |
dsinclair | c6c425a | 2016-09-29 12:01:30 -0700 | [diff] [blame] | 7 | #ifndef CORE_FPDFAPI_FPDF_PARSER_CPDF_INDIRECT_OBJECT_HOLDER_H_ |
| 8 | #define CORE_FPDFAPI_FPDF_PARSER_CPDF_INDIRECT_OBJECT_HOLDER_H_ |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 9 | |
| 10 | #include <map> |
tsepez | 5b7c9bb | 2016-09-20 12:02:32 -0700 | [diff] [blame] | 11 | #include <memory> |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 12 | |
dsinclair | a52ab74 | 2016-09-29 13:59:29 -0700 | [diff] [blame] | 13 | #include "core/fxcrt/fx_system.h" |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 14 | |
| 15 | class CPDF_Object; |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 16 | |
| 17 | class CPDF_IndirectObjectHolder { |
| 18 | public: |
tsepez | 5b7c9bb | 2016-09-20 12:02:32 -0700 | [diff] [blame] | 19 | using const_iterator = |
| 20 | std::map<uint32_t, std::unique_ptr<CPDF_Object>>::const_iterator; |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 21 | |
dsinclair | a61c01e | 2016-08-24 10:31:23 -0700 | [diff] [blame] | 22 | CPDF_IndirectObjectHolder(); |
| 23 | virtual ~CPDF_IndirectObjectHolder(); |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 24 | |
dsinclair | e07edce | 2016-08-23 20:14:27 -0700 | [diff] [blame] | 25 | CPDF_Object* GetIndirectObject(uint32_t objnum) const; |
dsinclair | 03bd7c7 | 2016-08-23 20:13:41 -0700 | [diff] [blame] | 26 | CPDF_Object* GetOrParseIndirectObject(uint32_t objnum); |
tsepez | b5e8f14 | 2016-03-25 15:18:35 -0700 | [diff] [blame] | 27 | void ReleaseIndirectObject(uint32_t objnum); |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 28 | |
dsinclair | 03bd7c7 | 2016-08-23 20:13:41 -0700 | [diff] [blame] | 29 | // Take ownership of |pObj|. |
| 30 | uint32_t AddIndirectObject(CPDF_Object* pObj); |
| 31 | bool ReplaceIndirectObjectIfHigherGeneration(uint32_t objnum, |
| 32 | CPDF_Object* pObj); |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 33 | |
tsepez | b5e8f14 | 2016-03-25 15:18:35 -0700 | [diff] [blame] | 34 | uint32_t GetLastObjNum() const { return m_LastObjNum; } |
dsinclair | 03bd7c7 | 2016-08-23 20:13:41 -0700 | [diff] [blame] | 35 | void SetLastObjNum(uint32_t objnum) { m_LastObjNum = objnum; } |
| 36 | |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 37 | const_iterator begin() const { return m_IndirectObjs.begin(); } |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 38 | const_iterator end() const { return m_IndirectObjs.end(); } |
| 39 | |
| 40 | protected: |
dsinclair | a61c01e | 2016-08-24 10:31:23 -0700 | [diff] [blame] | 41 | virtual CPDF_Object* ParseIndirectObject(uint32_t objnum); |
dsinclair | 03bd7c7 | 2016-08-23 20:13:41 -0700 | [diff] [blame] | 42 | |
| 43 | private: |
| 44 | uint32_t m_LastObjNum; |
tsepez | 5b7c9bb | 2016-09-20 12:02:32 -0700 | [diff] [blame] | 45 | std::map<uint32_t, std::unique_ptr<CPDF_Object>> m_IndirectObjs; |
Tom Sepez | 5fc239a | 2016-03-10 14:10:38 -0800 | [diff] [blame] | 46 | }; |
| 47 | |
dsinclair | c6c425a | 2016-09-29 12:01:30 -0700 | [diff] [blame] | 48 | #endif // CORE_FPDFAPI_FPDF_PARSER_CPDF_INDIRECT_OBJECT_HOLDER_H_ |