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1 // Copyright 2014 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_SRC_FPDFAPI_FPDF_PARSER_PARSER_INT_H_ | |
8 #define CORE_SRC_FPDFAPI_FPDF_PARSER_PARSER_INT_H_ | |
9 | |
10 #include <vector> | |
11 | |
12 #include "core/include/fxcrt/fx_basic.h" | |
13 #include "core/include/fxcrt/fx_stream.h" | |
14 | |
15 class CFX_BitStream; | |
16 class CPDF_DataAvail; | |
17 class CPDF_Dictionary; | |
18 class CPDF_Stream; | |
19 class IFX_DownloadHints; | |
20 | |
21 class CPDF_HintTables { | |
22 public: | |
23 CPDF_HintTables(CPDF_DataAvail* pDataAvail, CPDF_Dictionary* pLinearized) | |
24 : m_pLinearizedDict(pLinearized), | |
25 m_pDataAvail(pDataAvail), | |
26 m_nFirstPageSharedObjs(0), | |
27 m_szFirstPageObjOffset(0) {} | |
28 ~CPDF_HintTables(); | |
29 | |
30 FX_BOOL GetPagePos(int index, | |
31 FX_FILESIZE& szPageStartPos, | |
32 FX_FILESIZE& szPageLength, | |
33 FX_DWORD& dwObjNum); | |
34 IPDF_DataAvail::DocAvailStatus CheckPage(int index, | |
35 IFX_DownloadHints* pHints); | |
36 FX_BOOL LoadHintStream(CPDF_Stream* pHintStream); | |
37 | |
38 protected: | |
39 FX_BOOL ReadPageHintTable(CFX_BitStream* hStream); | |
40 FX_BOOL ReadSharedObjHintTable(CFX_BitStream* hStream, FX_DWORD offset); | |
41 FX_DWORD GetItemLength(int index, const std::vector<FX_FILESIZE>& szArray); | |
42 | |
43 private: | |
44 int ReadPrimaryHintStreamOffset() const; | |
45 int ReadPrimaryHintStreamLength() const; | |
46 | |
47 CPDF_Dictionary* m_pLinearizedDict; | |
48 CPDF_DataAvail* m_pDataAvail; | |
49 FX_DWORD m_nFirstPageSharedObjs; | |
50 FX_FILESIZE m_szFirstPageObjOffset; | |
51 CFX_DWordArray m_dwDeltaNObjsArray; | |
52 CFX_DWordArray m_dwNSharedObjsArray; | |
53 CFX_DWordArray m_dwSharedObjNumArray; | |
54 CFX_DWordArray m_dwIdentifierArray; | |
55 std::vector<FX_FILESIZE> m_szPageOffsetArray; | |
56 std::vector<FX_FILESIZE> m_szSharedObjOffsetArray; | |
57 }; | |
58 | |
59 #endif // CORE_SRC_FPDFAPI_FPDF_PARSER_PARSER_INT_H_ | |
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