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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_STREAM_H_ | |
8 #define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_H_ | |
9 | |
10 #include <memory> | |
11 #include <set> | |
12 | |
13 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" | |
14 #include "core/fpdfapi/fpdf_parser/include/cpdf_object.h" | |
15 #include "core/fxcrt/include/fx_basic.h" | |
16 | |
17 class CPDF_Stream : public CPDF_Object { | |
18 public: | |
19 CPDF_Stream(); | |
20 | |
21 // Takes ownership of |pData| and |pDict|. | |
22 CPDF_Stream(uint8_t* pData, uint32_t size, CPDF_Dictionary* pDict); | |
23 | |
24 // CPDF_Object. | |
25 Type GetType() const override; | |
26 CPDF_Object* Clone() const override; | |
27 CPDF_Dictionary* GetDict() const override; | |
28 CFX_WideString GetUnicodeText() const override; | |
29 bool IsStream() const override; | |
30 CPDF_Stream* AsStream() override; | |
31 const CPDF_Stream* AsStream() const override; | |
32 | |
33 uint32_t GetRawSize() const { return m_dwSize; } | |
34 uint8_t* GetRawData() const { return m_pDataBuf.get(); } | |
35 | |
36 // Does not takes onwership of |pData|, copies into internally-owned buffer. | |
37 void SetData(const uint8_t* pData, uint32_t size); | |
38 | |
39 void InitStream(const uint8_t* pData, uint32_t size, CPDF_Dictionary* pDict); | |
40 void InitStreamFromFile(IFX_FileRead* pFile, CPDF_Dictionary* pDict); | |
41 | |
42 FX_BOOL ReadRawData(FX_FILESIZE start_pos, | |
43 uint8_t* pBuf, | |
44 uint32_t buf_size) const; | |
45 | |
46 bool IsMemoryBased() const { return m_bMemoryBased; } | |
47 | |
48 protected: | |
49 ~CPDF_Stream() override; | |
50 CPDF_Object* CloneNonCyclic( | |
51 bool bDirect, | |
52 std::set<const CPDF_Object*>* pVisited) const override; | |
53 | |
54 std::unique_ptr<CPDF_Dictionary, ReleaseDeleter<CPDF_Dictionary>> m_pDict; | |
55 bool m_bMemoryBased = true; | |
56 uint32_t m_dwSize = 0; | |
57 std::unique_ptr<uint8_t, FxFreeDeleter> m_pDataBuf; | |
58 IFX_FileRead* m_pFile = nullptr; | |
59 }; | |
60 | |
61 #endif // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_H_ | |
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