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ODate.hpp
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1996-09-01
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// OCL - OS/2 Class Library
// (c) Cubus 1995
// All Rights Reserved
// ODate.hpp
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Neither the name Cubus nor the name Team OCL may be used to
* endorse or promote products derived from this software
* without specific prior written permission.
* 3. See OCL.INF for a detailed copyright notice.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
// $Header: E:/Projects/OCL/Include/rcs/O3State.hpp 1.6 1996/01/25 03:46:36 B.STEIN Exp B.STEIN $
#ifndef ODATE_INCLUDED
#define ODATE_INCLUDED
#include <time.h>
typedef class ODate *pODate;
class __CPP_EXPORT__ ODate
: public OCLObject
{
public:
typedef enum
{
Monday = 0,
Tuesday,
Wednesday,
Thursday,
Friday,
Saturday,
Sunday
}
DayOfWeek;
typedef enum
{
January = 1,
February,
March,
April,
May,
June,
July,
August,
September,
October,
November,
December
}
Month;
typedef enum
{
// earth style date formats
mm_dd_yy = 0, // mm. dd. yy
dd_mm_yy, // dd. mm. yy
yy_mm_dd, // yy mm. dd.
mm_dd_yyyy, // mm. dd. yyyy
dd_mm_yyyy, // dd. mm. yyyy
yyyy_mm_dd, // yyyy mm. dd.
// stardate date formats
sd_pi, // [-31] 7837
sd_pif1, // [-31] 7837.5
sd_pif2, // [-31] 7837.53
sd_pif3, // [-31] 7837.532
sd_pif4, // [-31] 7837.5321
sd_if, // 7837
sd_if1, // 7837.5
sd_if2, // 7837.53
sd_if3, // 7837.532
sd_if4 // 7837.5321
}
DateFormat;
// imbedded structs and classes
struct MDY
{
ODate::Month month;
INT day;
INT year;
};
private:
ULONG julian;
tm _now_tm;
time_t _now_time_t;
LONG prefix; // before or after star time
LONG integer; // before comma
LONG fraction; // after comma
protected:
ODate
&init (ODate::Month aMonth,
INT aDay,
INT aYear),
&calculate ();
public:
// ctors
ODate ();
ODate (ODate::Month aMonth,
INT aDay,
INT aYear);
ODate (INT aDay,
ODate::Month aMonth,
INT aYear);
ODate (INT aYear,
INT aDay);
ODate (const ODate &aDate);
ODate (ULONG julianDayNumber);
ODate (const _CDATE &cDate);
// dtor
virtual
~ODate ();
// utility members
virtual
PSZ isOfType () const;
static ODate
today (),
now ();
OString
asString (DateFormat dateFmt = dd_mm_yy) const,
asString (PCSZ fmt) const;
friend ostream
&operator << (ostream &aStream,
const ODate &aDate);
ODate::DayOfWeek
dayOfWeek () const;
OString
dayName () const;
INT
dayOfMonth () const,
dayOfYear () const;
ODate::Month
monthOfYear () const;
OString
monthName () const;
INT
year () const;
ULONG
julianDate () const;
_CDATE
asCDATE () const;
BOOL
operator == (const ODate &aDate) const,
operator != (const ODate &aDate) const,
operator < (const ODate &aDate) const,
operator <= (const ODate &aDate) const,
operator > (const ODate &aDate) const,
operator >= (const ODate &aDate) const;
ODate
operator + (INT numDays) const,
operator - (INT numDays) const;
ODate
&operator += (INT numDays),
&operator -= (INT numDays);
LONG
operator - (const ODate &aDate) const;
static OString
dayName (ODate::DayOfWeek aDay),
monthName (ODate::Month aMonth);
static INT
daysInMonth (Month aMonth,
INT aYear),
daysInYear (INT aYear);
static BOOL
isLeapYear (INT aYear),
isValid (Month aMonth,
INT aDay,
INT aYear),
isValid (INT aDay,
Month aMonth,
INT aYear),
isValid (INT aYear,
INT aDay);
static ODate::MDY
julianToMDY (ULONG julianDate),
DYToMDY (INT aDay, INT aYear);
static unsigned long
MDYToJulian (ODate::MDY aMDY);
};
#endif // ODATE_INCLUDED
// end of source