118 lines
3.3 KiB
C++
118 lines
3.3 KiB
C++
/*
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*
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* Copyright (C) 1994-2016, OFFIS e.V.
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* All rights reserved. See COPYRIGHT file for details.
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*
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* This software and supporting documentation were developed by
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*
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* OFFIS e.V.
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* R&D Division Health
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* Escherweg 2
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* D-26121 Oldenburg, Germany
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*
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*
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* Module: dcmdata
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*
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* Author: Gerd Ehlers, Andreas Barth
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*
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* Purpose: Interface of class DcmUnsignedLongOffset
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*
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*/
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#ifndef DCVRULUP_H
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#define DCVRULUP_H
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#include "dcmtk/config/osconfig.h" /* make sure OS specific configuration is included first */
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#include "dcmtk/dcmdata/dcvrul.h"
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/** a class used for DICOMDIR byte offsets
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*/
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class DCMTK_DCMDATA_EXPORT DcmUnsignedLongOffset
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: public DcmUnsignedLong
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{
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public:
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/** constructor.
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* Create new element from given tag and length.
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* @param tag DICOM tag for the new element
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* @param len value length for the new element
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*/
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DcmUnsignedLongOffset(const DcmTag &tag,
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const Uint32 len = 0);
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/** copy constructor
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* @param old element to be copied
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*/
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DcmUnsignedLongOffset(const DcmUnsignedLongOffset &old);
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/** destructor
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*/
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virtual ~DcmUnsignedLongOffset();
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/** assignment operator.
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* @param obj the offset to be copied
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*/
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DcmUnsignedLongOffset &operator=(const DcmUnsignedLongOffset &obj);
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/** clone method
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* @return deep copy of this object
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*/
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virtual DcmObject *clone() const
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{
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return new DcmUnsignedLongOffset(*this);
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}
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/** Virtual object copying. This method can be used for DcmObject
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* and derived classes to get a deep copy of an object. Internally
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* the assignment operator is called if the given DcmObject parameter
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* is of the same type as "this" object instance. If not, an error
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* is returned. This function permits copying an object by value
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* in a virtual way which therefore is different to just calling the
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* assignment operator of DcmElement which could result in slicing
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* the object.
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* @param rhs - [in] The instance to copy from. Has to be of the same
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* class type as "this" object
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* @return EC_Normal if copying was successful, error otherwise
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*/
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virtual OFCondition copyFrom(const DcmObject& rhs);
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/** get element type identifier
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* @return type identifier of this class (internal type: EVR_up)
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*/
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virtual DcmEVR ident() const;
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/** clear the currently stored value
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* @return status, EC_Normal if successful, an error code otherwise
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*/
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virtual OFCondition clear();
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/** get stored object reference
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* @return pointer to the currently referenced object (might be NULL)
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*/
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virtual DcmObject *getNextRecord();
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/** set stored object reference
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* @param record pointer to the object to be referenced
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* @return pointer to the newly referenced object (might be NULL)
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*/
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virtual DcmObject *setNextRecord(DcmObject *record);
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/** check the currently stored element value
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* @param autocorrect correct value length if OFTrue
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* @return status, EC_Normal if value length is correct, an error code otherwise
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*/
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virtual OFCondition verify(const OFBool autocorrect = OFFalse);
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private:
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/// pointer to the referenced object. NULL means that no object is referenced.
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DcmObject *nextRecord;
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};
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#endif // DCVRUSUP_H
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