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69 lines
2.5 KiB
69 lines
2.5 KiB
// Copyright 2014 PDFium Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style license that can be |
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// found in the LICENSE file. |
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
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#ifndef XFA_FGAS_CRT_FGAS_STREAM_H_ |
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#define XFA_FGAS_CRT_FGAS_STREAM_H_ |
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#include "core/fxcrt/cfx_retain_ptr.h" |
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#include "core/fxcrt/fx_stream.h" |
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#include "core/fxcrt/fx_system.h" |
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enum FX_STREAMACCESS { |
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FX_STREAMACCESS_Binary = 0x00, |
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FX_STREAMACCESS_Text = 0x01, |
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FX_STREAMACCESS_Read = 0x02, |
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FX_STREAMACCESS_Write = 0x04, |
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FX_STREAMACCESS_Truncate = 0x10, |
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FX_STREAMACCESS_Append = 0x20, |
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FX_STREAMACCESS_Create = 0x80, |
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}; |
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enum FX_STREAMSEEK { |
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FX_STREAMSEEK_Begin = 0, |
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FX_STREAMSEEK_Current, |
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FX_STREAMSEEK_End, |
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}; |
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class IFGAS_Stream : public CFX_Retainable { |
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public: |
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static CFX_RetainPtr<IFGAS_Stream> CreateStream( |
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const CFX_RetainPtr<IFX_SeekableReadStream>& pFileRead, |
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uint32_t dwAccess); |
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static CFX_RetainPtr<IFGAS_Stream> CreateStream( |
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const CFX_RetainPtr<IFX_SeekableWriteStream>& pFileWrite, |
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uint32_t dwAccess); |
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static CFX_RetainPtr<IFGAS_Stream> CreateStream(uint8_t* pData, |
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int32_t length, |
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uint32_t dwAccess); |
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static CFX_RetainPtr<IFGAS_Stream> CreateTextStream( |
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const CFX_RetainPtr<IFGAS_Stream>& pBaseStream); |
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virtual CFX_RetainPtr<IFGAS_Stream> CreateSharedStream(uint32_t dwAccess, |
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int32_t iOffset, |
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int32_t iLength) = 0; |
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virtual uint32_t GetAccessModes() const = 0; |
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virtual int32_t GetLength() const = 0; |
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virtual int32_t Seek(FX_STREAMSEEK eSeek, int32_t iOffset) = 0; |
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virtual int32_t GetPosition() = 0; |
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virtual bool IsEOF() const = 0; |
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virtual int32_t ReadData(uint8_t* pBuffer, int32_t iBufferSize) = 0; |
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virtual int32_t ReadString(FX_WCHAR* pStr, |
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int32_t iMaxLength, |
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bool& bEOS) = 0; |
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virtual int32_t WriteData(const uint8_t* pBuffer, int32_t iBufferSize) = 0; |
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virtual int32_t WriteString(const FX_WCHAR* pStr, int32_t iLength) = 0; |
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virtual void Flush() = 0; |
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virtual bool SetLength(int32_t iLength) = 0; |
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virtual int32_t GetBOM(uint8_t bom[4]) const = 0; |
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virtual uint16_t GetCodePage() const = 0; |
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virtual uint16_t SetCodePage(uint16_t wCodePage) = 0; |
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CFX_RetainPtr<IFX_SeekableReadStream> MakeSeekableReadStream(); |
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}; |
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#endif // XFA_FGAS_CRT_FGAS_STREAM_H_
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