iTime.h

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#ifndef Time_h
#define Time_h

#include <string>

#include <SpiceUsr.h>
#include <SpiceZfc.h>
#include <SpiceZmc.h>

#include "FileName.h"

class QString;

namespace Isis {

  class iTime {
    public:
      // constructor
      iTime();
      iTime(const QString &time);

      iTime(const double time) {
        if(!p_lpInitialized)
          LoadLeapSecondKernel();

        p_et = time;
      }

      // destructor
      ~iTime() {};

      void operator=(const QString &time);
      void operator=(const char *time);
      void operator=(const double time);

      bool operator>=(const iTime &time);
      bool operator<=(const iTime &time);
      bool operator>(const iTime &time);
      bool operator<(const iTime &time);
      bool operator!=(const iTime &time);
      bool operator==(const iTime &time);

      iTime operator +(const double &secondsToAdd) const;
      void operator +=(const double &secondsToAdd);
      friend iTime operator +(const double &secondsToAdd, iTime time);

      iTime operator -(const double &secondsToSubtract) const;
      double operator -(const iTime &iTimeToSubtract) const;
      void operator -=(const double &secondsToSubtract);
      friend iTime operator -(const double &secondsToSubtract, iTime time);

      // Return the year
      QString YearString() const;
      int Year() const;
      QString MonthString() const;
      int Month() const;
      QString DayString() const;
      int Day() const;
      QString HourString() const;
      int Hour() const;
      QString MinuteString() const;
      int Minute() const;
      QString SecondString() const;
      double Second() const;
      QString DayOfYearString() const;
      int DayOfYear() const;
      QString EtString() const;

      double Et() const {
        return p_et;
      }

      QString UTC() const;
      static QString CurrentGMT();
      static QString CurrentLocalTime();
      
      void setEt(double et);
      void setUtc(QString utcString);

    private:
      double p_et;     
      void LoadLeapSecondKernel();
      void UnloadLeapSecondKernel();

      static bool p_lpInitialized;
  };
};

#endif