dcmdata/include/dcmtk/dcmdata/dcdicent.h

/*
 *
 *  Copyright (C) 1994-2010, OFFIS e.V.
 *  All rights reserved.  See COPYRIGHT file for details.
 *
 *  This software and supporting documentation were developed by
 *
 *    OFFIS e.V.
 *    R&D Division Health
 *    Escherweg 2
 *    D-26121 Oldenburg, Germany
 *
 *
 *  Module:  dcmdata
 *
 *  Author:  Andrew Hewett
 *
 *  Purpose: Interface for a dictionary entry in the loadable DICOM data dictionary
 *
 *  Last Update:      $Author: meichel $
 *  Update Date:      $Date: 2010-11-17 15:17:51 $
 *  CVS/RCS Revision: $Revision: 1.26 $
 *  Status:           $State: Exp $
 *
 *  CVS/RCS Log at end of file
 *
 */

#ifndef DCDICENT_H
#define DCDICENT_H

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

#define INCLUDE_CSTRING               /* for strcmp() */
#include "dcmtk/ofstd/ofstdinc.h"

#define DcmVariableVM   -1

#define DCM_INRANGE(x,a,b) (((x) >= (a)) && ((x) <= (b)))
#define DCM_IS_ODD(x) (((x) % 2) == 1)
#define DCM_IS_EVEN(x) (((x) % 2) == 0)


enum DcmDictRangeRestriction
{
    DcmDictRange_Unspecified,

    DcmDictRange_Odd,

    DcmDictRange_Even
};


class DcmDictEntry: public DcmTagKey
{
public:

    DcmDictEntry(Uint16 g, Uint16 e, DcmVR vr,
        const char* nam, int vmMin, int vmMax,
        const char* vers, OFBool doCopyStrings,
        const char* pcreator);

    DcmDictEntry(Uint16 g, Uint16 e, Uint16 ug, Uint16 ue, DcmVR vr,
        const char* nam, int vmMin, int vmMax,
        const char* vers, OFBool doCopyStrings,
        const char* pcreator);

    DcmDictEntry(const DcmDictEntry& e);

    ~DcmDictEntry();

    /* access methods */

    DcmVR getVR() const
    {
        return valueRepresentation;
    }

    DcmEVR getEVR() const
    {
        return valueRepresentation.getEVR();
    }

    const char* getStandardVersion() const
    {
        return standardVersion;
    }

    const char* getTagName() const
    {
        return tagName;
    }

    const char* getPrivateCreator() const
    {
        return privateCreator;
    }

    int privateCreatorMatch(const char *c) const
    {
      return
      (
        ((privateCreator == NULL) && (c == NULL)) ||
        (privateCreator && c && (0 == strcmp(privateCreator, c)))
      );
    }

    int privateCreatorMatch(const DcmDictEntry& arg) const
    {
      return privateCreatorMatch(arg.privateCreator);
    }

    int getVMMin() const
    {
        return valueMultiplicityMin;
    }

    int getVMMax() const
    {
        return valueMultiplicityMax;
    }

    OFBool isFixedSingleVM() const
    {
        return ((valueMultiplicityMin != DcmVariableVM) &&
                      (valueMultiplicityMin == valueMultiplicityMax));
    }

    OFBool isFixedRangeVM() const
    {
        return ((valueMultiplicityMin != DcmVariableVM) &&
                      (valueMultiplicityMax != DcmVariableVM));
    }

    OFBool isVariableRangeVM() const
    {
        return ((valueMultiplicityMin != DcmVariableVM) &&
                      (valueMultiplicityMax == DcmVariableVM));
    }

    void setUpper(const DcmTagKey& key)
    {
        upperKey = key;
    }

    void setUpperGroup(Uint16 ug)
    {
        upperKey.setGroup(ug);
    }

    void setUpperElement(Uint16 ue)
    {
        upperKey.setElement(ue);
    }

    Uint16 getUpperGroup() const
    {
        return upperKey.getGroup();
    }

    Uint16 getUpperElement() const
    {
        return upperKey.getElement();
    }

    DcmTagKey getKey() const
    {
        return * OFstatic_cast(const DcmTagKey *, this);
    }

    DcmTagKey getUpperKey() const
    {
        return upperKey;
    }

    int isRepeatingGroup() const
    {
        return (getGroup() != getUpperGroup());
    }

    int isRepeatingElement() const
    {
        return (getElement() != getUpperElement());
    }

    int isRepeating() const
    {
        return (isRepeatingGroup() || isRepeatingElement());
    }

    DcmDictRangeRestriction getGroupRangeRestriction() const
    {
        return groupRangeRestriction;
    }

    void setGroupRangeRestriction(DcmDictRangeRestriction rr)
    {
        groupRangeRestriction = rr;
    }

    DcmDictRangeRestriction getElementRangeRestriction() const
    {
        return elementRangeRestriction;
    }

    void setElementRangeRestriction(DcmDictRangeRestriction rr)
    {
        elementRangeRestriction = rr;
    }

    /* containment */

    int contains(const DcmTagKey& key, const char *privCreator) const /* this contains key */
    {
        if ((getGroupRangeRestriction() == DcmDictRange_Even) &&
            DCM_IS_ODD(key.getGroup()))
            return OFFalse;
        else if ((getGroupRangeRestriction() == DcmDictRange_Odd) &&
            DCM_IS_EVEN(key.getGroup()))
            return OFFalse;
        else if ((getElementRangeRestriction() == DcmDictRange_Even) &&
            DCM_IS_ODD(key.getElement()))
            return OFFalse;
        else if ((getElementRangeRestriction() == DcmDictRange_Odd) &&
            DCM_IS_EVEN(key.getElement()))
            return OFFalse;
        else if (! privateCreatorMatch(privCreator))
            return OFFalse;
        else
        {
            const OFBool groupMatches=DCM_INRANGE(key.getGroup(), getGroup(), getUpperGroup());
            OFBool found=groupMatches && DCM_INRANGE(key.getElement(), getElement(), getUpperElement());
            if (!found && groupMatches && privCreator)
                found=DCM_INRANGE(key.getElement() & 0xFF, getElement(), getUpperElement());
            return found;
        }
    }

    int contains(const char *name) const /* this contains named key */
    {
        return !strcmp( tagName, name );
    }

    /* set relations */

    int subset(const DcmDictEntry& e) const /* this is a subset of key */
    {
        return ( (getGroup() >= e.getGroup()) &&
                 (getUpperGroup() <= e.getUpperGroup()) &&
                 (getElement() >= e.getElement()) &&
                 (getUpperElement() <= e.getUpperElement()) &&
                 privateCreatorMatch(e.privateCreator)
            );
    }

    int setEQ(const DcmDictEntry& e) const /* this is set equal to key */
    {
        return ( (getGroup() == e.getGroup()) &&
                 (getUpperGroup() == e.getUpperGroup()) &&
                 (getElement() == e.getElement()) &&
                 (getUpperElement() == e.getUpperElement()) &&
                 (getGroupRangeRestriction() == e.getGroupRangeRestriction()) &&
                 (getElementRangeRestriction() == e.getElementRangeRestriction()) &&
                 privateCreatorMatch(e.privateCreator)
            );
    }

    friend STD_NAMESPACE ostream& operator<<(STD_NAMESPACE ostream& s, const DcmDictEntry& e);

private:

    DcmDictEntry &operator=(const DcmDictEntry &);

    DcmTagKey upperKey;

    DcmVR valueRepresentation;

    const char *tagName;

    int valueMultiplicityMin;

    int valueMultiplicityMax;

    const char *standardVersion;

    OFBool stringsAreCopies;

    DcmDictRangeRestriction groupRangeRestriction;

    DcmDictRangeRestriction elementRangeRestriction;

    const char *privateCreator;
};

#endif /* !DCDICENT_H */


/*
** CVS/RCS Log:
** $Log: dcdicent.h,v $
** Revision 1.26  2010-11-17 15:17:51  meichel
** Fixed issue with data dictionary causing private tags with group number
**   range and flexible element number not to be found in the dictionary.
**
** Revision 1.25  2010-10-14 13:15:40  joergr
** Updated copyright header. Added reference to COPYRIGHT file.
**
** Revision 1.24  2010-06-25 09:15:19  uli
** Fixed issues with compiling with HAVE_STD_STRING.
**
** Revision 1.23  2010-03-01 09:08:44  uli
** Removed some unnecessary include directives in the headers.
**
** Revision 1.22  2009-11-04 09:58:07  uli
** Switched to logging mechanism provided by the "new" oflog module
**
** Revision 1.21  2006-08-15 15:49:56  meichel
** Updated all code in module dcmdata to correctly compile when
**   all standard C++ classes remain in namespace std.
**
** Revision 1.20  2005/12/08 16:28:08  meichel
** Changed include path schema for all DCMTK header files
**
** Revision 1.19  2004/01/16 14:07:03  joergr
** Removed acknowledgements with e-mail addresses from CVS log.
**
** Revision 1.18  2003/08/14 09:00:56  meichel
** Adapted type casts to new-style typecast operators defined in ofcast.h
**
** Revision 1.17  2002/11/27 12:07:21  meichel
** Adapted module dcmdata to use of new header file ofstdinc.h
**
** Revision 1.16  2002/07/23 14:21:25  meichel
** Added support for private tag data dictionaries to dcmdata
**
** Revision 1.15  2002/04/16 13:41:44  joergr
** Added configurable support for C++ ANSI standard includes (e.g. streams).
**
** Revision 1.14  2001/06/01 15:48:36  meichel
** Updated copyright header
**
** Revision 1.13  2000/03/08 16:26:13  meichel
** Updated copyright header.
**
** Revision 1.12  1999/03/31 09:24:35  meichel
** Updated copyright header in module dcmdata
**
** Revision 1.11  1998/07/15 15:48:45  joergr
** Removed several compiler warnings reported by gcc 2.8.1 with
** additional options, e.g. missing copy constructors and assignment
** operators, initialization of member variables in the body of a
** constructor instead of the member initialization list, hiding of
** methods by use of identical names, uninitialized member variables,
** missing const declaration of char pointers. Replaced tabs by spaces.
**
** Revision 1.10  1997/08/26 13:44:59  hewett
** Modified constructors to take const parameters.
**
** Revision 1.9  1997/07/31 14:40:35  meichel
** Created copy constructor for class DcmDictEntry, required by dcmcheck.
**
** Revision 1.8  1997/07/21 08:25:07  andreas
** - Replace all boolean types (BOOLEAN, CTNBOOLEAN, DICOM_BOOL, BOOL)
**   with one unique boolean type OFBool.
**
** Revision 1.7  1997/04/18 08:04:39  andreas
** - Minor corrections: correct some warnings of the SUN-C++ Compiler
**   concerning the assignments of wrong types and inline compiler
**   errors
**
** Revision 1.6  1997/04/15 16:25:05  hewett
** Corrected data dictionary bug whereby the even/odd range restrictions
** were not being taken into consideration when searching the dictionary.
**
** Revision 1.5  1996/09/24 16:24:58  hewett
** Added preliminary support for the Macintosh environment (GUSI library).
**
** Revision 1.4  1996/09/18 16:37:09  hewett
** Added capability to search data dictionary by tag name.
**
** Revision 1.3  1996/03/20 16:43:49  hewett
** Updated for revised data dictionary.  Repeating tags are now handled better.
** A linear list of repeating tags has been introduced with a subset ordering
** mechanism to ensure that dictionary searches locate the most precise
** dictionary entry.
**
*/

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