| // 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_INCLUDE_FPDFAPI_CPDF_STREAM_H_ |
| #define CORE_INCLUDE_FPDFAPI_CPDF_STREAM_H_ |
| |
| #include "core/include/fpdfapi/cpdf_dictionary.h" |
| #include "core/include/fpdfapi/cpdf_object.h" |
| #include "core/include/fxcrt/fx_stream.h" |
| |
| class CPDF_Stream : public CPDF_Object { |
| public: |
| CPDF_Stream(uint8_t* pData, FX_DWORD size, CPDF_Dictionary* pDict); |
| |
| // CPDF_Object. |
| Type GetType() const override; |
| CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; |
| CPDF_Dictionary* GetDict() const override; |
| CFX_WideString GetUnicodeText() const override; |
| bool IsStream() const override; |
| CPDF_Stream* AsStream() override; |
| const CPDF_Stream* AsStream() const override; |
| |
| FX_DWORD GetRawSize() const { return m_dwSize; } |
| uint8_t* GetRawData() const { return m_pDataBuf; } |
| |
| void SetData(const uint8_t* pData, |
| FX_DWORD size, |
| FX_BOOL bCompressed, |
| FX_BOOL bKeepBuf); |
| |
| void InitStream(uint8_t* pData, FX_DWORD size, CPDF_Dictionary* pDict); |
| void InitStreamFromFile(IFX_FileRead* pFile, CPDF_Dictionary* pDict); |
| |
| FX_BOOL ReadRawData(FX_FILESIZE start_pos, |
| uint8_t* pBuf, |
| FX_DWORD buf_size) const; |
| |
| bool IsMemoryBased() const { return m_GenNum == kMemoryBasedGenNum; } |
| |
| protected: |
| static const FX_DWORD kMemoryBasedGenNum = (FX_DWORD)-1; |
| |
| ~CPDF_Stream() override; |
| |
| void InitStreamInternal(CPDF_Dictionary* pDict); |
| |
| CPDF_Dictionary* m_pDict; |
| FX_DWORD m_dwSize; |
| FX_DWORD m_GenNum; |
| |
| union { |
| uint8_t* m_pDataBuf; |
| IFX_FileRead* m_pFile; |
| }; |
| }; |
| |
| #endif // CORE_INCLUDE_FPDFAPI_CPDF_STREAM_H_ |