dcdatset.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:  Gerd Ehlers, Andreas Barth
 *
 *  Purpose: Interface of the class DcmDataset
 *
 *  Last Update:      $Author: meichel $
 *  Update Date:      $Date: 2005/12/08 16:28:02 $
 *  Source File:      $Source: /share/dicom/cvs-depot/dcmtk/dcmdata/include/dcmtk/dcmdata/dcdatset.h,v $
 *  CVS/RCS Revision: $Revision: 1.25 $
 *  Status:           $State: Exp $
 *
 *  CVS/RCS Log at end of file
 *
 */


#ifndef DCDATSET_H
#define DCDATSET_H

#include "dcmtk/config/osconfig.h"    /* make sure OS specific configuration is included first */

#include "dcmtk/ofstd/ofconsol.h"
#include "dcmtk/dcmdata/dcerror.h"
#include "dcmtk/dcmdata/dctypes.h"
#include "dcmtk/dcmdata/dcitem.h"


// forward declarations
class DcmInputStream;
class DcmOutputStream;
class DcmRepresentationParameter;


class DcmDataset
  : public DcmItem
{

  public:

    DcmDataset();

    DcmDataset(const DcmDataset &old);

    virtual ~DcmDataset();

    virtual DcmObject *clone() const
    {
      return new DcmDataset(*this);
    }

    virtual DcmEVR ident() const;

    E_TransferSyntax getOriginalXfer() const;

    virtual void print(ostream &out,
                       const size_t flags = 0,
                       const int level = 0,
                       const char *pixelFileName = NULL,
                       size_t *pixelCounter = NULL);

    Uint32 calcElementLength(const E_TransferSyntax xfer,
                             const E_EncodingType enctype);

    virtual OFBool canWriteXfer(const E_TransferSyntax newXfer,
                                const E_TransferSyntax oldXfer = EXS_Unknown);

    virtual OFCondition read(DcmInputStream &inStream,
                             const E_TransferSyntax xfer = EXS_Unknown,
                             const E_GrpLenEncoding glenc = EGL_noChange,
                             const Uint32 maxReadLength = DCM_MaxReadLength);

    virtual OFCondition write(DcmOutputStream &outStream,
                              const E_TransferSyntax oxfer,
                              const E_EncodingType enctype = EET_UndefinedLength);

    virtual OFCondition write(DcmOutputStream &outStream,
                              const E_TransferSyntax oxfer,
                              const E_EncodingType enctype,
                              const E_GrpLenEncoding glenc,
                              const E_PaddingEncoding padenc = EPD_noChange,
                              const Uint32 padlen = 0,
                              const Uint32 subPadlen = 0,
                              Uint32 instanceLength = 0);

    virtual OFCondition writeSignatureFormat(DcmOutputStream &outStream,
                                             const E_TransferSyntax oxfer,
                                             const E_EncodingType enctype = EET_UndefinedLength);

    virtual OFCondition writeXML(ostream &out,
                                 const size_t flags = 0);

    virtual OFCondition clear();

    virtual OFCondition loadFile(const char *fileName,
                                 const E_TransferSyntax readXfer = EXS_Unknown,
                                 const E_GrpLenEncoding groupLength = EGL_noChange,
                                 const Uint32 maxReadLength = DCM_MaxReadLength);

    virtual OFCondition saveFile(const char *fileName,
                                 const E_TransferSyntax writeXfer = EXS_Unknown,
                                 const E_EncodingType encodingType = EET_UndefinedLength,
                                 const E_GrpLenEncoding groupLength = EGL_recalcGL,
                                 const E_PaddingEncoding padEncoding = EPD_noChange,
                                 const Uint32 padLength = 0,
                                 const Uint32 subPadLength = 0);

    // methods for different pixel representations

    // choose Representation changes the representation of
    // PixelData Elements in the data set to the given representation
    // If the representation does not exists it creates one.
    OFCondition chooseRepresentation(const E_TransferSyntax repType,
                                     const DcmRepresentationParameter *repParam);

    // checks if all PixelData elements have a conforming representation
    // (for definition of conforming representation see dcpixel.h).
    // if one PixelData element has no conforming representation
    // OFFalse is returned.
    OFBool hasRepresentation(const E_TransferSyntax repType,
                             const DcmRepresentationParameter *repParam);

    void removeAllButOriginalRepresentations();

    void removeAllButCurrentRepresentations();


  private:

    DcmDataset& operator=(const DcmDataset&);

    E_TransferSyntax Xfer;
};


#endif // DCDATSET_H


/*
** CVS/RCS Log:
** $Log: dcdatset.h,v $
** Revision 1.25  2005/12/08 16:28:02  meichel
** Changed include path schema for all DCMTK header files
**
** Revision 1.24  2005/11/11 10:31:57  meichel
** Added explicit DcmDataset::clear() implementation.
**
** Revision 1.23  2004/07/01 12:28:25  meichel
** Introduced virtual clone method for DcmObject and derived classes.
**
** Revision 1.22  2003/03/21 13:06:46  meichel
** Minor code purifications for warnings reported by MSVC in Level 4
**
** Revision 1.21  2002/12/09 09:31:13  wilkens
** Modified/Added doc++ documentation.
**
** Revision 1.20  2002/12/06 12:49:08  joergr
** Enhanced "print()" function by re-working the implementation and replacing
** the boolean "showFullData" parameter by a more general integer flag.
** Added doc++ documentation.
** Made source code formatting more consistent with other modules/files.
**
** Revision 1.19  2002/08/27 16:55:30  meichel
** Initial release of new DICOM I/O stream classes that add support for stream
**   compression (deflated little endian explicit VR transfer syntax)
**
** Revision 1.18  2002/04/25 09:40:13  joergr
** Added support for XML output of DICOM objects.
**
** Revision 1.17  2002/04/11 12:22:52  joergr
** Added new methods for loading and saving DICOM files.
**
** Revision 1.16  2001/09/25 17:19:24  meichel
** Adapted dcmdata to class OFCondition
**
** Revision 1.15  2001/06/01 15:48:34  meichel
** Updated copyright header
**
** Revision 1.14  2000/11/07 16:56:05  meichel
** Initial release of dcmsign module for DICOM Digital Signatures
**
** Revision 1.13  2000/04/14 15:31:31  meichel
** Removed default value from output stream passed to print() method.
**   Required for use in multi-thread environments.
**
** Revision 1.12  2000/03/08 16:26:12  meichel
** Updated copyright header.
**
** Revision 1.11  2000/03/03 14:05:22  meichel
** Implemented library support for redirecting error messages into memory
**   instead of printing them to stdout/stderr for GUI applications.
**
** Revision 1.10  2000/02/10 10:50:50  joergr
** Added new feature to dcmdump (enhanced print method of dcmdata): write
** pixel data/item value fields to raw files.
**
** Revision 1.9  1999/03/31 09:24:32  meichel
** Updated copyright header in module dcmdata
**
** Revision 1.8  1997/07/21 08:14:38  andreas
** - New environment for encapsulated pixel representations. DcmPixelData
**   can contain different representations and uses codecs to convert
**   between them. Codecs are derived from the DcmCodec class. New error
**   codes are introduced for handling of representations. New internal
**   value representation (only for ident()) for PixelData
** - Replace all boolean types (BOOLEAN, CTNBOOLEAN, DICOM_BOOL, BOOL)
**   with one unique boolean type OFBool.
**
** Revision 1.7  1997/05/27 13:48:26  andreas
** - Add method canWriteXfer to class DcmObject and all derived classes.
**   This method checks whether it is possible to convert the original
**   transfer syntax to an new transfer syntax. The check is used in the
**   dcmconv utility to prohibit the change of a compressed transfer
**   syntax to a uncompressed.
**
** Revision 1.6  1997/05/16 08:23:45  andreas
** - Revised handling of GroupLength elements and support of
**   DataSetTrailingPadding elements. The enumeratio E_GrpLenEncoding
**   got additional enumeration values (for a description see dctypes.h).
**   addGroupLength and removeGroupLength methods are replaced by
**   computeGroupLengthAndPadding. To support Padding, the parameters of
**   element and sequence write functions changed.
** - Added a new method calcElementLength to calculate the length of an
**   element, item or sequence. For elements it returns the length of
**   tag, length field, vr field, and value length, for item and
**   sequences it returns the length of the whole item. sequence including
**   the Delimitation tag (if appropriate).  It can never return
**   UndefinedLength.
**
** Revision 1.5  1996/08/05 08:45:17  andreas
** new print routine with additional parameters:
**         - print into files
**         - fix output length for elements
** corrected error in search routine with parameter ESM_fromStackTop
**
** Revision 1.4  1996/01/09 11:06:14  andreas
** New Support for Visual C++
** Correct problems with inconsistent const declarations
**
** Revision 1.3  1996/01/05 13:22:52  andreas
** - changed to support new streaming facilities
** - more cleanups
** - merged read / write methods for block and file transfer
**
*/

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