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/********************************************************************************
* *
* D a t e C l a s s *
* *
*********************************************************************************
* Copyright (C) 2005 by Jeroen van der Zijp. All Rights Reserved. *
*********************************************************************************
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2.1 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *
*********************************************************************************
* $Id: FXDate.h 2335 2006-01-28 02:33:03Z lyle $ *
********************************************************************************/
#ifndef FXDATE_H
#define FXDATE_H
namespace FX {
/**
* Gregorian date object.
*/
class FXAPI FXDate {
private:
FXuint julian;
private:
static const FXchar shortMonthName[12][4];
static const FXchar longMonthName[12][10];
static const FXchar shortWeekDay[7][4];
static const FXchar longWeekDay[7][10];
protected:
static void greg2jul(FXuint& jd,FXint y,FXint m,FXint d);
static void jul2greg(FXuint jd,FXint& y,FXint& m,FXint& d);
public:
/// Names for the months
enum {
Jan=1,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec
};
/// Names for the weekdays
enum {
Sun=0,Mon,Tue,Wed,Thu,Fri,Sat
};
public:
/// Default constructor
FXDate(){}
/// Copy constructor
FXDate(const FXDate& date):julian(date.julian){}
/// Initialize with year, month, and day
FXDate(FXint y,FXint m,FXint d);
/// Initialize with julian day number
FXDate(FXuint j):julian(j){}
/// Set julian day number
void setJulian(FXuint day){ julian=day; }
/// Get julian day number
FXuint getJulian() const { return julian; }
/// Set to year, month, and day
void setDate(FXint y,FXint m,FXint d);
/// Get year, month, and day
void getDate(FXint& y,FXint& m,FXint& d) const;
/// Return day of the month
FXint day() const;
/// Return month
FXint month() const;
/// Return year
FXint year() const;
/// Return day of the week
FXint dayOfWeek() const;
/// Return day of year
FXint dayOfYear() const;
/// Return days in this month
FXint daysInMonth() const;
/// Return true if leap year
bool leapYear() const;
/// Is the value a leap year
static bool leapYear(FXint y);
/// Get the name of the month
static const FXchar *monthName(FXint month){ return longMonthName[month-1]; }
/// Get the abbreviated name of the month
static const FXchar *monthNameShort(FXint month){ return shortMonthName[month-1]; }
/// Get the name of the day
static const FXchar *dayName(FXint day){ return longWeekDay[day]; }
/// Get the abbreviated name of the day
static const FXchar *dayNameShort(FXint day){ return shortWeekDay[day]; }
/// Return current local date
static FXDate localDate();
/// Return current UTC (Zulu) date
static FXDate zuluDate();
/// Assignment
FXDate& operator=(const FXDate& date){julian=date.julian;return *this;}
/// Assignment operators
FXDate& operator+=(FXint x){ julian+=x; return *this; }
FXDate& operator-=(FXint x){ julian-=x; return *this; }
/// Increment and decrement
FXDate& operator++(){ julian++; return *this; }
FXDate& operator--(){ julian--; return *this; }
/// Equality tests
bool operator==(const FXDate& date) const { return julian==date.julian;}
bool operator!=(const FXDate& date) const { return julian!=date.julian;}
/// Inequality tests
bool operator<(const FXDate& date) const { return julian<date.julian;}
bool operator<=(const FXDate& date) const { return julian<=date.julian;}
bool operator>(const FXDate& date) const { return julian>date.julian;}
bool operator>=(const FXDate& date) const { return julian>=date.julian;}
/// Add days to date yielding another date
friend inline FXDate operator+(const FXDate& d,FXint x);
friend inline FXDate operator+(FXint x,const FXDate& d);
/// Substract dates yielding days
friend inline FXint operator-(const FXDate& a,const FXDate& b);
/// save to stream
friend FXAPI FXStream& operator<<(FXStream& store,const FXDate& d);
/// load from stream
friend FXAPI FXStream& operator>>(FXStream& store,FXDate& d);
};
inline FXDate operator+(const FXDate& d,FXint x){ return FXDate(d.julian+x); }
inline FXDate operator+(FXint x,const FXDate& d){ return FXDate(x+d.julian); }
inline FXint operator-(const FXDate& a,const FXDate& b){return a.julian-b.julian; }
extern FXAPI FXStream& operator<<(FXStream& store,const FXDate& d);
extern FXAPI FXStream& operator>>(FXStream& store,FXDate& d);
}
#endif