| // Copyright 2014 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 XFA_FGAS_CRT_IFGAS_STREAM_H_ |
| #define XFA_FGAS_CRT_IFGAS_STREAM_H_ |
| |
| #include "core/fxcrt/cfx_retain_ptr.h" |
| #include "core/fxcrt/fx_stream.h" |
| #include "core/fxcrt/fx_system.h" |
| |
| enum FX_STREAMSEEK { |
| FX_STREAMSEEK_Begin = 0, |
| FX_STREAMSEEK_Current, |
| FX_STREAMSEEK_End, |
| }; |
| |
| class IFGAS_Stream : public CFX_Retainable { |
| public: |
| static CFX_RetainPtr<IFGAS_Stream> CreateReadStream( |
| const CFX_RetainPtr<IFX_SeekableReadStream>& pFileRead); |
| static CFX_RetainPtr<IFGAS_Stream> CreateWriteStream( |
| const CFX_RetainPtr<IFX_SeekableWriteStream>& pFileWrite); |
| static CFX_RetainPtr<IFGAS_Stream> CreateWideStringReadStream( |
| const CFX_WideString& buffer); |
| |
| virtual int32_t GetLength() const = 0; |
| virtual int32_t Seek(FX_STREAMSEEK eSeek, int32_t iOffset) = 0; |
| virtual int32_t GetPosition() = 0; |
| virtual bool IsEOF() const = 0; |
| virtual int32_t ReadData(uint8_t* pBuffer, int32_t iBufferSize) = 0; |
| virtual int32_t ReadString(wchar_t* pStr, int32_t iMaxLength, bool& bEOS) = 0; |
| virtual int32_t WriteData(const uint8_t* pBuffer, int32_t iBufferSize) = 0; |
| virtual int32_t WriteString(const wchar_t* pStr, int32_t iLength) = 0; |
| virtual void Flush() = 0; |
| virtual bool SetLength(int32_t iLength) = 0; |
| virtual int32_t GetBOMLength() const = 0; |
| virtual uint16_t GetCodePage() const = 0; |
| virtual uint16_t SetCodePage(uint16_t wCodePage) = 0; |
| }; |
| |
| #endif // XFA_FGAS_CRT_IFGAS_STREAM_H_ |