| // 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_FGAS_STREAM_H_ |
| #define XFA_FGAS_CRT_FGAS_STREAM_H_ |
| |
| #include "core/include/fxcrt/fx_stream.h" |
| #include "core/include/fxcrt/fx_system.h" |
| |
| class IFX_Stream; |
| |
| IFX_FileRead* FX_CreateFileRead(IFX_Stream* pBaseStream, |
| FX_BOOL bReleaseStream = FALSE); |
| IFX_FileRead* FX_CreateFileRead(IFX_BufferRead* pBufferRead, |
| FX_FILESIZE iFileSize = -1, |
| FX_BOOL bReleaseStream = TRUE); |
| IFX_FileWrite* FX_CreateFileWrite(IFX_Stream* pBaseStream, |
| FX_BOOL bReleaseStream = FALSE); |
| enum FX_STREAMACCESS { |
| FX_STREAMACCESS_Binary = 0x00, |
| FX_STREAMACCESS_Text = 0x01, |
| FX_STREAMACCESS_Read = 0x02, |
| FX_STREAMACCESS_Write = 0x04, |
| FX_STREAMACCESS_Truncate = 0x10, |
| FX_STREAMACCESS_Append = 0x20, |
| FX_STREAMACCESS_Create = 0x80, |
| }; |
| |
| enum FX_STREAMSEEK { |
| FX_STREAMSEEK_Begin = 0, |
| FX_STREAMSEEK_Current, |
| FX_STREAMSEEK_End, |
| }; |
| |
| class IFX_Stream { |
| public: |
| static IFX_Stream* CreateStream(IFX_FileRead* pFileRead, FX_DWORD dwAccess); |
| static IFX_Stream* CreateStream(IFX_FileWrite* pFileWrite, FX_DWORD dwAccess); |
| static IFX_Stream* CreateStream(const FX_WCHAR* pszFileName, |
| FX_DWORD dwAccess); |
| static IFX_Stream* CreateStream(uint8_t* pData, |
| int32_t length, |
| FX_DWORD dwAccess); |
| static IFX_Stream* CreateStream(IFX_BufferRead* pBufferRead, |
| FX_DWORD dwAccess, |
| int32_t iFileSize = -1, |
| FX_BOOL bReleaseBufferRead = TRUE); |
| static IFX_Stream* CreateTextStream(IFX_Stream* pBaseStream, |
| FX_BOOL bDeleteOnRelease); |
| virtual ~IFX_Stream() {} |
| virtual void Release() = 0; |
| virtual IFX_Stream* Retain() = 0; |
| virtual FX_DWORD GetAccessModes() const = 0; |
| virtual int32_t GetLength() const = 0; |
| virtual int32_t Seek(FX_STREAMSEEK eSeek, int32_t iOffset) = 0; |
| virtual int32_t GetPosition() = 0; |
| virtual FX_BOOL IsEOF() const = 0; |
| virtual int32_t ReadData(uint8_t* pBuffer, int32_t iBufferSize) = 0; |
| virtual int32_t ReadString(FX_WCHAR* pStr, |
| int32_t iMaxLength, |
| FX_BOOL& bEOS, |
| int32_t const* pByteSize = NULL) = 0; |
| virtual int32_t WriteData(const uint8_t* pBuffer, int32_t iBufferSize) = 0; |
| virtual int32_t WriteString(const FX_WCHAR* pStr, int32_t iLength) = 0; |
| virtual void Flush() = 0; |
| virtual FX_BOOL SetLength(int32_t iLength) = 0; |
| virtual int32_t GetBOM(uint8_t bom[4]) const = 0; |
| virtual FX_WORD GetCodePage() const = 0; |
| virtual FX_WORD SetCodePage(FX_WORD wCodePage) = 0; |
| virtual IFX_Stream* CreateSharedStream(FX_DWORD dwAccess, |
| int32_t iOffset, |
| int32_t iLength) = 0; |
| }; |
| |
| #endif // XFA_FGAS_CRT_FGAS_STREAM_H_ |