/usr/include/dcmtk/dcmdata/dcvrtm.h is in libdcmtk-dev 3.6.1~20160216-4.
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*
* Copyright (C) 1994-2011, 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: Gerd Ehlers, Joerg Riesmeier
*
* Purpose: Interface of class DcmTime
*
*/
#ifndef DCVRTM_H
#define DCVRTM_H
#include "dcmtk/config/osconfig.h" /* make sure OS specific configuration is included first */
#include "dcmtk/dcmdata/dctypes.h"
#include "dcmtk/dcmdata/dcbytstr.h"
#include "dcmtk/ofstd/oftime.h"
/** a class representing the DICOM value representation 'Time' (TM)
*/
class DCMTK_DCMDATA_EXPORT DcmTime
: public DcmByteString
{
public:
/** constructor.
* Create new element from given tag and length.
* @param tag DICOM tag for the new element
* @param len value length for the new element
*/
DcmTime(const DcmTag &tag,
const Uint32 len = 0);
/** copy constructor
* @param old element to be copied
*/
DcmTime(const DcmTime &old);
/** destructor
*/
virtual ~DcmTime();
/** assignment operator
* @param obj element to be assigned/copied
* @return reference to this object
*/
DcmTime &operator=(const DcmTime &obj);
/** clone method
* @return deep copy of this object
*/
virtual DcmObject *clone() const
{
return new DcmTime(*this);
}
/** Virtual object copying. This method can be used for DcmObject
* and derived classes to get a deep copy of an object. Internally
* the assignment operator is called if the given DcmObject parameter
* is of the same type as "this" object instance. If not, an error
* is returned. This function permits copying an object by value
* in a virtual way which therefore is different to just calling the
* assignment operator of DcmElement which could result in slicing
* the object.
* @param rhs - [in] The instance to copy from. Has to be of the same
* class type as "this" object
* @return EC_Normal if copying was successful, error otherwise
*/
virtual OFCondition copyFrom(const DcmObject& rhs);
/** get element type identifier
* @return type identifier of this class (EVR_TM)
*/
virtual DcmEVR ident() const;
/** check whether stored value conforms to the VR and to the specified VM
* @param vm value multiplicity (according to the data dictionary) to be checked for.
* (See DcmElement::checkVM() for a list of valid values.)
* @param oldFormat support old ACR/NEMA format if OFTrue (':' as a separator)
* @return status of the check, EC_Normal if value is correct, an error code otherwise
*/
virtual OFCondition checkValue(const OFString &vm = "1-n",
const OFBool oldFormat = OFFalse);
/** get a copy of a particular string component
* @param stringValue variable in which the result value is stored
* @param pos index of the value in case of multi-valued elements (0..vm-1)
* @param normalize delete trailing spaces if OFTrue
* @return status, EC_Normal if successful, an error code otherwise
*/
virtual OFCondition getOFString(OFString &stringValue,
const unsigned long pos,
OFBool normalize = OFTrue);
/** set the element value to the current system time.
* The DICOM TM format supported by this function is "HHMM[SS[.FFFFFF]]" where
* the brackets enclose optional parts. If the current system time or parts of it
* are unavailable the corresponding values are set to "0" and an error code is
* returned.
* @param seconds add optional seconds ("SS") if OFTrue
* @param fraction add optional fractional part of a second (".FFFFFF") if OFTrue
* (requires parameter 'seconds' to be also OFTrue)
* @return EC_Normal upon success, an error code otherwise
*/
OFCondition setCurrentTime(const OFBool seconds = OFTrue,
const OFBool fraction = OFFalse);
/** set the element value to the given time
* @param timeValue time to be set (should be a valid time)
* @return EC_Normal upon success, an error code otherwise
*/
OFCondition setOFTime(const OFTime &timeValue);
/** get the current element value in OFTime format.
* Please note that the element value is expected to be in valid DICOM TM format
* ("[HH[MM[SS[.FFFFFF]]]]", "[HH[:MM[:SS[.FFFFFF]]]]" is also supported for reasons
* of backward compatibility). Since there is no time zone for the DICOM TM format
* local time is assumed (the time zone of 'timeValue' is set automatically).
* If this function fails the result variable 'timeValue' is cleared automatically.
* @param timeValue reference to OFTime variable where the result is stored
* @param pos index of the element component in case of value multiplicity (0..vm-1)
* @param supportOldFormat if OFTrue support old (prior V3.0) time format (see above)
* @return EC_Normal upon success, an error code otherwise
*/
OFCondition getOFTime(OFTime &timeValue,
const unsigned long pos = 0,
const OFBool supportOldFormat = OFTrue);
/** get the current element value in ISO time format.
* The ISO time format supported by this function is "HH:MM[:SS[.FFFFFF]]"
* where the brackets enclose optional parts. Please note that the element value
* is expected to be in valid DICOM TM format ("[HH[MM[SS[.FFFFFF]]]]",
* "[HH[:MM[:SS[.FFFFFF]]]]" is also supported for reasons of backward compatibility).
* If this function fails or the current element value is empty, the result variable
* 'formattedTime' is cleared automatically. Please note that if the "Timezone Offset
* From UTC" attribute (0008,0201) is present, it applies to all TM attributes in the
* object. However, the time zone is not taken into account for the creation of the
* ISO formatted time. See also "getTimeZoneFromString()" below.
* @param formattedTime reference to string variable where the result is stored
* @param pos index of the element component in case of value multiplicity (0..vm-1)
* @param seconds add optional seconds (":SS") if OFTrue
* @param fraction add optional fractional part of a second (".FFFFFF") if OFTrue
* (requires parameter 'seconds' to be also OFTrue)
* @param createMissingPart if OFTrue create optional parts (seconds and/or fractional
* part of a seconds) if absent in the element value
* @param supportOldFormat if OFTrue support old (prior V3.0) time format (see above)
* @return EC_Normal upon success, an error code otherwise
*/
OFCondition getISOFormattedTime(OFString &formattedTime,
const unsigned long pos = 0,
const OFBool seconds = OFTrue,
const OFBool fraction = OFFalse,
const OFBool createMissingPart = OFFalse,
const OFBool supportOldFormat = OFTrue);
/* --- static helper functions --- */
/** get the current system time.
* The DICOM TM format supported by this function is "HHMM[SS[.FFFFFF]]" where
* the brackets enclose optional parts. If the current system time or parts of it
* are unavailable the corresponding values are set to "0" and an error code is
* returned.
* @param dicomTime reference to string variable where the result is stored
* @param seconds add optional seconds ("SS") if OFTrue
* @param fraction add optional fractional part of a second (".FFFFFF") if OFTrue
* (requires parameter 'seconds' to be also OFTrue)
* @return EC_Normal upon success, an error code otherwise
*/
static OFCondition getCurrentTime(OFString &dicomTime,
const OFBool seconds = OFTrue,
const OFBool fraction = OFFalse);
/** get the specified OFTime value in DICOM format.
* The DICOM TM format supported by this function is "HHMM[SS[.FFFFFF]]" where
* the brackets enclose optional parts. If the current system time or parts of it
* are unavailable the corresponding values are set to "0" and an error code is
* returned.
* @param timeValue time to be converted to DICOM format
* @param dicomTime reference to string variable where the result is stored
* @param seconds add optional seconds ("SS") if OFTrue
* @param fraction add optional fractional part of a second (".FFFFFF") if OFTrue
* (requires parameter 'seconds' to be also OFTrue)
* @return EC_Normal upon success, an error code otherwise
*/
static OFCondition getDicomTimeFromOFTime(const OFTime &timeValue,
OFString &dicomTime,
const OFBool seconds = OFTrue,
const OFBool fraction = OFFalse);
/** get the specified DICOM time value in OFTime format.
* Please note that the element value is expected to be in valid DICOM TM format
* ("[HH[MM[SS[.FFFFFF]]]]", "[HH[:MM[:SS[.FFFFFF]]]]" is also supported for reasons
* of backward compatibility). Since there is no time zone for the DICOM TM format
* local time is assumed (the time zone of 'timeValue' is set automatically).
* If this function fails the result variable 'timeValue' is cleared automatically.
* @param dicomTime string value in DICOM TM format to be converted to ISO format.
* An empty string is not regarded as valid input, since the time would be unknown.
* @param timeValue reference to OFTime variable where the result is stored
* @param supportOldFormat if OFTrue support old (prior V3.0) time format (see above)
* @return EC_Normal upon success, an error code otherwise
*/
static OFCondition getOFTimeFromString(const OFString &dicomTime,
OFTime &timeValue,
const OFBool supportOldFormat = OFTrue);
/** get the specified DICOM time value in ISO format.
* The ISO time format supported by this function is "HH:MM[:SS[.FFFFFF]]" where the
* brackets enclose optional parts. Please note that the specified value is expected
* to be in valid DICOM TM format ("[HH[MM[SS[.FFFFFF]]]]", "[HH[:MM[:SS[.FFFFFF]]]]"
* is also supported for reasons of backward compatibility). If this function fails
* or the specified DICOM time value is empty, the result variable 'formattedTime'
* is cleared automatically.
* @param dicomTime string value in DICOM TM format to be converted to ISO format
* @param formattedTime reference to string variable where the result is stored
* @param seconds add optional seconds (":SS") if OFTrue
* @param fraction add optional fractional part of a second (".FFFFFF") if OFTrue
* (requires parameter 'seconds' to be also OFTrue)
* @param createMissingPart if OFTrue create optional parts (seconds and/or fractional
* part of a seconds) if absent in the DICOM TM value
* @param supportOldFormat if OFTrue support old (prior V3.0) time format (see above)
* @return EC_Normal upon success, an error code otherwise
*/
static OFCondition getISOFormattedTimeFromString(const OFString &dicomTime,
OFString &formattedTime,
const OFBool seconds = OFTrue,
const OFBool fraction = OFFalse,
const OFBool createMissingPart = OFFalse,
const OFBool supportOldFormat = OFTrue);
/** get the specified DICOM time zone in number of hours format
* DICOM standard states that if the "Timezone Offset From UTC" attribute (0008,0201) is
* present it applies to all TM attributes in the object. This functions allows to convert
* the DICOM format ("&ZZZZ" where "&" is "+" or "-" and "ZZZZ" hours and minutes) to a
* floating point value, e.g. "+1.0" means plus one hour and "-2.5" minus two and a half
* hour, i.e. 2 hours and 30 minutes.
* The resulting 'timeZone' value can be used in conjuction with a OFTime object to convert
* the time to different time zones (e.g. to local time or UTC).
* @param dicomTimeZone string value in DICOM format ("&ZZZZ") to be converted
* @param timeZone reference to floating point variable where the resulting UTC offset is stored
* @return EC_Normal upon success, an error code otherwise
*/
static OFCondition getTimeZoneFromString(const OFString &dicomTimeZone,
double &timeZone);
/** check whether given string value conforms to the VR "TM" (Time)
* and to the specified VM.
* @param value string value to be checked (possibly multi-valued)
* @param vm value multiplicity (according to the data dictionary) to be checked for.
* (See DcmElement::checkVM() for a list of valid values.)
* @param oldFormat support old ACR/NEMA time format if OFTrue (i.e. with ":" and "." delimiters)
* @return status of the check, EC_Normal if value is correct, an error code otherwise
*/
static OFCondition checkStringValue(const OFString &value,
const OFString &vm = "1-n",
const OFBool oldFormat = OFFalse);
};
#endif // DCVRTM_H
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