| // Copyright 2016 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef CORE_FPDFAPI_PARSER_CPDF_LINEARIZED_HEADER_H_ |
| #define CORE_FPDFAPI_PARSER_CPDF_LINEARIZED_HEADER_H_ |
| |
| #include <memory> |
| |
| #include "core/fxcrt/fx_memory.h" |
| #include "core/fxcrt/fx_stream.h" |
| |
| class CPDF_Dictionary; |
| class CPDF_Object; |
| class CPDF_SyntaxParser; |
| |
| class CPDF_LinearizedHeader { |
| public: |
| ~CPDF_LinearizedHeader(); |
| static std::unique_ptr<CPDF_LinearizedHeader> Parse( |
| CPDF_SyntaxParser* parser); |
| |
| // Will only return values > 0. |
| FX_FILESIZE GetFileSize() const { return m_szFileSize; } |
| uint32_t GetFirstPageNo() const { return m_dwFirstPageNo; } |
| // Will only return values > 0. |
| FX_FILESIZE GetMainXRefTableFirstEntryOffset() const { |
| return m_szMainXRefTableFirstEntryOffset; |
| } |
| uint32_t GetPageCount() const { return m_PageCount; } |
| // Will only return values > 0. |
| FX_FILESIZE GetFirstPageEndOffset() const { return m_szFirstPageEndOffset; } |
| // Will only return values > 0. |
| uint32_t GetFirstPageObjNum() const { return m_FirstPageObjNum; } |
| // Will only return values > 0. |
| FX_FILESIZE GetLastXRefOffset() const { return m_szLastXRefOffset; } |
| |
| bool HasHintTable() const; |
| // Will only return values > 0. |
| FX_FILESIZE GetHintStart() const { return m_szHintStart; } |
| uint32_t GetHintLength() const { return m_HintLength; } |
| |
| protected: |
| CPDF_LinearizedHeader(const CPDF_Dictionary* pDict, |
| FX_FILESIZE szLastXRefOffset); |
| |
| private: |
| const FX_FILESIZE m_szFileSize; |
| const uint32_t m_dwFirstPageNo; |
| const FX_FILESIZE m_szMainXRefTableFirstEntryOffset; |
| const uint32_t m_PageCount; |
| const FX_FILESIZE m_szFirstPageEndOffset; |
| const uint32_t m_FirstPageObjNum; |
| const FX_FILESIZE m_szLastXRefOffset; |
| FX_FILESIZE m_szHintStart = 0; |
| uint32_t m_HintLength = 0; |
| }; |
| |
| #endif // CORE_FPDFAPI_PARSER_CPDF_LINEARIZED_HEADER_H_ |