dcistrmf.h

/*
 *
 *  Copyright (C) 1994-2005, OFFIS
 *
 *  This software and supporting documentation were developed by
 *
 *    Kuratorium OFFIS e.V.
 *    Healthcare Information and Communication Systems
 *    Escherweg 2
 *    D-26121 Oldenburg, Germany
 *
 *  THIS SOFTWARE IS MADE AVAILABLE,  AS IS,  AND OFFIS MAKES NO  WARRANTY
 *  REGARDING  THE  SOFTWARE,  ITS  PERFORMANCE,  ITS  MERCHANTABILITY  OR
 *  FITNESS FOR ANY PARTICULAR USE, FREEDOM FROM ANY COMPUTER DISEASES  OR
 *  ITS CONFORMITY TO ANY SPECIFICATION. THE ENTIRE RISK AS TO QUALITY AND
 *  PERFORMANCE OF THE SOFTWARE IS WITH THE USER.
 *
 *  Module:  dcmdata
 *
 *  Author:  Marco Eichelberg
 *
 *  Purpose: DcmInputFileStream and related classes,
 *    implements streamed input from files.
 *
 *  Last Update:      $Author: meichel $
 *  Update Date:      $Date: 2005/12/08 16:28:17 $
 *  Source File:      $Source: /share/dicom/cvs-depot/dcmtk/dcmdata/include/dcmtk/dcmdata/dcistrmf.h,v $
 *  CVS/RCS Revision: $Revision: 1.3 $
 *  Status:           $State: Exp $
 *
 *  CVS/RCS Log at end of file
 *
 */

#ifndef DCISTRMF_H
#define DCISTRMF_H

#include "dcmtk/config/osconfig.h"
#include "dcmtk/dcmdata/dcistrma.h"

#define INCLUDE_CSTDIO
#include "dcmtk/ofstd/ofstdinc.h"


class DcmFileProducer: public DcmProducer
{
public:
  DcmFileProducer(const char *filename, Uint32 offset = 0);

  virtual ~DcmFileProducer();

  virtual OFBool good() const;

  virtual OFCondition status() const;

  virtual OFBool eos() const;

  virtual Uint32 avail() const;

  virtual Uint32 read(void *buf, Uint32 buflen);

  virtual Uint32 skip(Uint32 skiplen);

  virtual void putback(Uint32 num);

private:

  DcmFileProducer(const DcmFileProducer&);

  DcmFileProducer& operator=(const DcmFileProducer&);

  FILE *file_;

  OFCondition status_;

  Uint32 size_;
};


class DcmInputFileStreamFactory: public DcmInputStreamFactory
{
public:

  DcmInputFileStreamFactory(const char *filename, Uint32 offset);

  DcmInputFileStreamFactory(const DcmInputFileStreamFactory &arg);

  virtual ~DcmInputFileStreamFactory();

  virtual DcmInputStream *create() const;

  virtual DcmInputStreamFactory *clone() const
  {
    return new DcmInputFileStreamFactory(*this);
  }

private:


  DcmInputFileStreamFactory& operator=(const DcmInputFileStreamFactory&);

  OFString filename_;

  Uint32 offset_;
  
};


class DcmInputFileStream: public DcmInputStream
{
public:
  DcmInputFileStream(const char *filename, Uint32 offset = 0);

  virtual ~DcmInputFileStream();

  virtual DcmInputStreamFactory *newFactory() const;

private:

  DcmInputFileStream(const DcmInputFileStream&);

  DcmInputFileStream& operator=(const DcmInputFileStream&);

  DcmFileProducer producer_;

  OFString filename_;
};


#endif

/*
 * CVS/RCS Log:
 * $Log: dcistrmf.h,v $
 * Revision 1.3  2005/12/08 16:28:17  meichel
 * Changed include path schema for all DCMTK header files
 *
 * Revision 1.2  2002/11/27 12:07:21  meichel
 * Adapted module dcmdata to use of new header file ofstdinc.h
 *
 * Revision 1.1  2002/08/27 16:55:33  meichel
 * Initial release of new DICOM I/O stream classes that add support for stream
 *   compression (deflated little endian explicit VR transfer syntax)
 *
 *
 */

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