oftime.h

转化为DIB位图再显示出来的dicom文件C++代码

    OFBool setCurrentTime();

    /** set the time value to the given ISO formatted time string.
     *  The two ISO time formats supported by this function are "HH:MM[:SS]" (with arbitrary
     *  delimiters) and "HHMM[SS]" (without delimiters) where the brackets enclose optional
     *  parts.  The optional fractional part of a second and the time zone (see getISO...)
     *  are not yet supported.
     *  @param formattedTime ISO formatted time value to be set
     *  @return OFTrue if input is valid and result variable has been set, OFFalse otherwise
     */
    OFBool setISOFormattedTime(const OFString &formattedTime);

    /** get the currently stored hour value
     *  @return hour value (might be invalid, i.e. out of range)
     */
    unsigned int getHour() const;

    /** get the currently stored minute value
     *  @return minute value (might be invalid, i.e. out of range)
     */
    unsigned int getMinute() const;

    /** get the currently stored second value
     *  @return second value (might be invalid, i.e. out of range)
     */
    double getSecond() const;

    /** get the integral part of the currently stored second value
     *  @return second value (might be invalid, i.e. out of range)
     */
    unsigned int getIntSecond() const;

    /** get the milli second part of the currently stored second value
     *  @return milli second part (0..999)
     */
    unsigned int getMilliSecond() const;

    /** get the micro second part of the currently stored second value
     *  @return micro second part (0..999999)
     */
    unsigned int getMicroSecond() const;

    /** get the currently stored time zone value.
     *  The time zone is given as the offset (in hours) to the Coordinated Universal
     *  Time (UTC). Valid values are for instance "+1.0" (plus one hour) and "-2.5"
     *  (minus two and a half hour, i.e. 2 hours and 30 minutes).
     *  @return time zone value (might be invalid, i.e. out of range)
     */
    double getTimeZone() const;

    /** get the currently stored time in seconds
     *  @param useTimeZone use the currently set time zone to correct the result
     *  @param normalize if OFTrue results larger than or equal 86400.0 (seconds)
     *    are normalized to a valid range
     *  @return number of seconds since "00:00:00"
     */
    double getTimeInSeconds(const OFBool useTimeZone = OFFalse,
                            const OFBool normalize = OFTrue) const;

    /** get the currently stored time in hours.
     *  @param useTimeZone use the currently set time zone to correct the result
     *  @param normalize if OFTrue results larger than or equal 24.0 (hours)
     *    are normalized to a valid range
     *  @return number of hours since "00:00:00" (incl. fraction of hours)
     */
    double getTimeInHours(const OFBool useTimeZone = OFFalse,
                          const OFBool normalize = OFTrue) const;

    /** get the currently stored time as Coordinated Universal Time.
     *  The resulting time object always has a time zone of "+00:00" since the time is
     *  corrected regarding the Coordinated Universal Time (UTC).
     *  @return time object with the UTC corrected time set
     */
    OFTime getCoordinatedUniversalTime() const;

    /** get the currently stored time in local time.
     *  The resulting time object always has the local time zone.
     *  @return time object with the corrected time set
     */
    OFTime getLocalTime() const;

    /** get the current time value in ISO format.
     *  The two ISO time formats supported by this function are "HH:MM[:SS[.FFFFFF]][&ZZ:ZZ]"
     *  (with delimiters) and "HHMM[SS[.FFFFFF]][&ZZZZ]" (without delimiters, useful for DICOM
     *  time type) where the brackets enclose optional parts.
     *  @param formattedTime reference to string variable where the result is stored
     *  @param showSeconds add optional seconds (":SS" or "SS") to the resulting string if OFTrue
     *  @param showFraction add optional fractional part of a second (".FFFFFF") if OFTrue.
     *    Requires parameter 'seconds' to be also OFTrue.
     *  @param showTimeZone add optional time zone ("&ZZ:ZZ" or "&ZZZZ") to the resulting string
     *    if OFTrue. The time zone indicates the offset from the Coordinated Universal Time (UTC)
     *    in hours and minutes. The "&" is a placeholder for the sign symbol ("+" or "-").
     *  @param showDelimiter flag, indicating whether to use delimiters (":") or not
     *  @return OFTrue if result variable has been set, OFFalse otherwise
     */
    OFBool getISOFormattedTime(OFString &formattedTime,
                               const OFBool showSeconds = OFTrue,
                               const OFBool showFraction = OFFalse,
                               const OFBool showTimeZone = OFFalse,
                               const OFBool showDelimiter = OFTrue) const;

    /* --- static helper functions --- */

    /** get the current system time
     *  @return time object with the current system time set
     */
    static OFTime getCurrentTime();

    /** get the local time zone.
     *  This function uses operating system dependent routines. If they are unavailable
     *  for some reason the Coordinated Universal Time is assumed (time zone offset = 0).
     *  @return local time zone if available, 0 otherwise
     */
    static double getLocalTimeZone();


 protected:

    /** set the time value to the current system time.
     *  This function uses operating system dependent routines. If they are unavailable
     *  for some reason the current value is not modified.
     *  @param tt current system time (as returned by the time() function )
     *  @return OFTrue if the current system time has been set, OFFalse otherwise
     */
    OFBool setCurrentTime(const time_t &tt);

    /* --- static helper functions --- */

    /** check whether the given time is valid.
     *  Valid ranges: [0,24[ for 'hour', [0,60[ for 'minute', [0.0,60.0[ for 'second'
     *  and [-12.0,+12.0] for 'timeZone'
     *  @param hour hour value to be checked
     *  @param minute minute value to be checked
     *  @param second second value to be checked
     *  @param timeZone offset to Coordinated Universal Time (UTC) in hours
     *  @return OFTrue if the current value is valid, OFFalse otherwise
     */
    static OFBool isTimeValid(const unsigned int hour,
                              const unsigned int minute,
                              const double second,
                              const double timeZone);

    /** get the given time in seconds.
     *  @param hour hour value of the given time
     *  @param minute minute value of the given time
     *  @param second second value of the given time
     *  @param timeZone offset to Coordinated Universal Time (UTC) in hours
     *  @param normalize if OFTrue results larger than or equal 86400.0 (seconds)
     *    are normalized to a valid range
     *  @return number of seconds since "00:00:00"
     */
    static double getTimeInSeconds(const unsigned int hour,
                                   const unsigned int minute,
                                   const double second,
                                   const double timeZone = 0,
                                   const OFBool normalize = OFTrue);

    /** get the given time in hours.
     *  @param hour hour value of the given time
     *  @param minute minute value of the given time
     *  @param second second value of the given time
     *  @param timeZone offset to Coordinated Universal Time (UTC) in hours
     *  @param normalize if OFTrue results larger than or equal 24.0 (hours)
     *    are normalized to a valid range
     *  @return number of hours since "00:00:00" (incl. fraction of hours)
     */
    static double getTimeInHours(const unsigned int hour,
                                 const unsigned int minute,
                                 const double second,
                                 const double timeZone = 0,
                                 const OFBool normalize = OFTrue);


 private:

    /// currently stored hour value
    unsigned int Hour;

    /// currently stored minute value
    unsigned int Minute;

    /// currently stored second value (incl. fraction of seconds)
    double Second;

    /// currently stored time zone value
    double TimeZone;
};


/** put the given time in ISO format on the output stream.
 *  If an error occurs nothing is printed.
 *  @param stream output stream
 *  @param timeVal OFTime object to print
 *  @return reference to the output stream
 */
ostream& operator<<(ostream& stream, const OFTime &timeVal);


#endif


/*
 *
 * CVS/RCS Log:
 * $Log: oftime.h,v $
 * Revision 1.8  2005/12/08 16:06:09  meichel
 * Changed include path schema for all DCMTK header files
 *
 * Revision 1.7  2004/01/16 10:30:39  joergr
 * Added setISOFormattedXXX() methods for Date, Time and DateTime.
 *
 * Revision 1.6  2003/12/17 15:18:48  joergr
 * Fixed bug/inconsistency in comparison operators of class OFTime. Now the
 * "time overflow" is handled correctly.
 *
 * Revision 1.5  2003/09/15 12:12:56  joergr
 * Fixed incorrect/improper comments of the comparision operators. Enhanced
 * comment of the default constructor. Made comparison operators const.
 *
 * Revision 1.4  2002/05/24 09:43:05  joergr
 * Renamed some parameters/variables to avoid ambiguities.
 *
 * Revision 1.3  2002/04/19 10:42:51  joergr
 * Added new helper routines to get the milli and micro seconds part as well as
 * the integral value of seconds.
 *
 * Revision 1.2  2002/04/15 09:38:59  joergr
 * Added "include <sys/types.h>" for struct time_t (required for MSVC).
 *
 * Revision 1.1  2002/04/11 12:12:24  joergr
 * Introduced new standard classes providing date and time functions.
 *
 *
 */