DateTime.h

// $Id: DateTime.h 21 2010-09-05 04:18:17Z cschwarz1 $

#ifndef BASE_DATETIME_H
#define BASE_DATETIME_H

#include "String.h"

namespace base {

    class PPBASE_EXPORT DateTime {
    public:
        DateTime();


        DateTime(const String &s, bool utc = false);


        void addDays(int n);


        void addHours(int n);


        void addMinutes(int n);


        void addMonths(int n);


        void addSeconds(int n);


        void addYears(int n);


        static int compare(const DateTime &lhs, const DateTime &rhs, bool time = true, bool millis = true);


        static int compareDate(const DateTime &lhs, const DateTime &rhs);


        static int compareTime(const DateTime &lhs, const DateTime &rhs, bool millis = true);


        static bool diff(const DateTime &lhs, const DateTime &rhs, unsigned *rdays, unsigned char *rhours = NULL,
                         unsigned char *rminutes = NULL, unsigned char *rseconds = NULL, unsigned short *rmillis = NULL);


        static int diffSeconds(const DateTime &lhs, const DateTime &rhs);


        unsigned char getDay() const;


        unsigned char getDayOfWeek() const;


        static unsigned getDayOfYear(unsigned char day, unsigned char month, short year);


        unsigned getDayOfYear() const;


        unsigned char getHour() const;


        unsigned getMilliSecondOfDay() const;


        unsigned short getMilliSeconds() const;


        unsigned char getMinute() const;


        unsigned char getMonth() const;


        unsigned char getMonthDays() const;


        static unsigned char getMonthDays(unsigned char month, short year);


        unsigned char getSecond() const;


        unsigned getSecondOfDay() const;


        short getYear() const;


        unsigned short getYearDays() const;


        static unsigned short getYearDays(short year);


        bool isLeapYear() const;


        static bool isLeapYear(short year);


        bool isNull() const;


        bool isUTC() const;

        void nextDay();

        void nextHour();

        void nextMinute();

        void nextMonth();

        void nextYear();

        void prevDay();

        void prevHour();

        void prevMinute();

        void prevMonth();

        void prevYear();


        bool set(const String &str, bool utc = false);


        void setCurrent(bool utc = false, bool millis = false);


        void setDate(unsigned char day, unsigned char month, short year);


        void setUTC(bool utc);


        void setTime(unsigned char hour, unsigned char minute, unsigned char second, unsigned short millis = 0);


        String toString(const char *format = NULL) const;


        bool valid() const;


        void operator=(const String &s);


        bool operator!() const;


        bool operator==(const DateTime &d) const;


        bool operator!=(const DateTime &d) const;


        bool operator<(const DateTime &d) const;
    

        bool operator<=(const DateTime &d) const;


        bool operator>(const DateTime &d) const;
    

        bool operator>=(const DateTime &d) const;

    private:
        void calculateDayOfWeek();

        unsigned char  _hour;     
        unsigned char  _minute;   
        unsigned char  _second;   
        unsigned char  _day;      
        unsigned char  _dow;      
        unsigned char  _month;    
        short          _year;     
        unsigned short _millis;   
        bool           _utc;      
    };
}

#endif