OdStreamBuf.h

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// Copyright (C) 2002-2022, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable  
// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2022 by Open Design Alliance. 
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
 
 
 
 
#ifndef ODSTREAMBUF_DEFINED
#define ODSTREAMBUF_DEFINED
 
#if !defined( FX_PREVIEW )
#include "RxObject.h"
 
#include "TD_PackPush.h"
 
class OdString;
#else
#include <stdio.h>
#include <string>
#include "OdPlatformSettings.h"
#endif
 
namespace OdDb
{
  enum FilerSeekType
  {
    kSeekFromStart   = SEEK_SET, // Start of file.
    kSeekFromCurrent = SEEK_CUR, // Current position of file pointer.
    kSeekFromEnd     = SEEK_END  // End of file.
  };
}
 
#if !defined( FX_PREVIEW )
class FIRSTDLL_EXPORT OdStreamBuf : public OdRxObject
#else
class OdStreamBuf
#endif
{
protected:
  OdStreamBuf();
public:
#if !defined( FX_PREVIEW )
  ODRX_DECLARE_MEMBERS(OdStreamBuf);
#endif
 
#if !defined( FX_PREVIEW )
  virtual OdString  fileName();
#else
  virtual std::wstring fileName();
#endif
 
  virtual bool      isEof();
  virtual OdUInt64  tell();
  virtual OdUInt64  length();
 
  virtual void      truncate();
  virtual void      rewind();
  virtual OdUInt64  seek(OdInt64 offset, OdDb::FilerSeekType seekType);
 
  virtual OdUInt8   getByte();
  virtual void      getBytes(void* buffer, OdUInt32 numBytes);
 
  virtual void      putByte(OdUInt8 value);
  virtual void      putBytes(const void* buffer, OdUInt32 numBytes);
 
  virtual void      copyDataTo(OdStreamBuf* pDestination, OdUInt64 sourceStart = 0, OdUInt64 sourceEnd = 0);
  virtual OdUInt32  getShareMode();
};
#if !defined( FX_PREVIEW )
typedef OdSmartPtr<OdStreamBuf> OdStreamBufPtr;
 
#include "TD_PackPop.h"
#endif
 
#endif //ODSTREAMBUF_DEFINED