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/*************************************************************************
** Definition of extended range date class
** (c) 2004 by Michel Guitel <michel.guitel@sap.ap-hop-paris.fr>
** modifications by Jason Harris <kstars@30doradus.org>
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
**********************************************************************/
#ifndef EXTDATETIME_H
#define EXTDATETIME_H
#include <limits.h>
#include "qstring.h"
#include "qnamespace.h"
#include "qdatetime.h"
#include <kdemacros.h>
#define INVALID_DAY LONG_MIN
class ExtDateTime;
/*****************************************************************************
ExtDate class
*****************************************************************************/
extern void test2_unit(int y, int m, int d);
class ExtDateTime;
class KDE_EXPORT ExtDate
{
public:
ExtDate() : m_jd(INVALID_DAY), m_year(0), m_month(0), m_day(0) {}
ExtDate( int y, int m, int d );
ExtDate( const QDate &q ) { ExtDate( q.year(), q.month(), q.day() ); }
ExtDate( long int jd );
bool isNull() const { return m_jd == INVALID_DAY; }
bool isValid() const;
QDate qdate() const;
int year() const { return m_year; }
int month() const { return m_month; }
int day() const { return m_day; }
int dayOfWeek() const;
int dayOfYear() const;
int daysInMonth() const;
int daysInYear() const;
int weekNumber( int *yearNum = 0 ) const;
long int jd() const { return m_jd; }
#ifndef QT_NO_TEXTDATE
#ifndef QT_NO_COMPAT
static QString monthName( int month ) { return shortMonthName( month ); }
static QString dayName( int weekday ) { return shortDayName( weekday ); }
#endif
static QString shortMonthName( int month );
static QString shortDayName( int weekday );
static QString longMonthName( int month );
static QString longDayName( int weekday );
#endif //QT_NO_TEXTDATE
#ifndef QT_NO_TEXTSTRING
#if !defined(QT_NO_SPRINTF)
QString toString( Qt::DateFormat f = Qt::TextDate ) const;
#endif
QString toString( const QString& format ) const;
#endif
bool setYMD( int y, int m, int d );
bool setJD( long int _jd );
ExtDate addDays( int days ) const;
ExtDate addMonths( int months ) const;
ExtDate addYears( int years ) const;
int daysTo( const ExtDate & ) const;
bool operator==( const ExtDate &d ) const { return m_jd == d.jd(); }
bool operator!=( const ExtDate &d ) const { return m_jd != d.jd(); }
bool operator<( const ExtDate &d ) const { return m_jd < d.jd(); }
bool operator<=( const ExtDate &d ) const { return m_jd <= d.jd(); }
bool operator>( const ExtDate &d ) const { return m_jd > d.jd(); }
bool operator>=( const ExtDate &d ) const { return m_jd >= d.jd(); }
static ExtDate currentDate( Qt::TimeSpec ts = Qt::LocalTime );
#ifndef QT_NO_DATESTRING
static ExtDate fromString( const QString &s );
static ExtDate fromString( const QString &s, Qt::DateFormat f );
#endif
static bool isValid( int y, int m, int d );
static bool leapYear( int year );
static long int GregorianToJD( int y, int m, int d );
static void JDToGregorian( long int jd, int &y, int &m, int &d );
private:
static int dayOfYear(int y, int m, int d);
long int m_jd;
int m_year, m_month, m_day;
static uint m_monthLength[12];
static uint m_monthOrigin[12];
static QString m_shortMonthNames[12];
static QString m_shortDayNames[7];
static QString m_longMonthNames[12];
static QString m_longDayNames[7];
friend class ExtDateTime;
#ifndef QT_NO_DATASTREAM
friend Q_EXPORT QDataStream &operator<<( QDataStream &, const ExtDate & );
friend Q_EXPORT QDataStream &operator>>( QDataStream &, ExtDate & );
friend Q_EXPORT QDataStream &operator<<( QDataStream &, const ExtDateTime & );
friend Q_EXPORT QDataStream &operator>>( QDataStream &, ExtDateTime & );
#endif
};
/*****************************************************************************
ExtDateTime class
*****************************************************************************/
class KDE_EXPORT ExtDateTime
{
public:
ExtDateTime() {} // set null date and null time
ExtDateTime( const ExtDate & );
ExtDateTime( const ExtDate &, const QTime & );
bool isNull() const { return d.isNull() && t.isNull(); }
bool isValid() const { return d.isValid() && t.isValid(); }
ExtDate date() const { return d; }
QTime time() const { return t; }
uint toTime_t() const;
void setDate( const ExtDate &date ) { d = date; }
void setTime( const QTime &time ) { t = time; }
void setTime_t( uint secsSince1Jan1970UTC );
void setTime_t( uint secsSince1Jan1970UTC, Qt::TimeSpec );
#ifndef QT_NO_DATESTRING
#ifndef QT_NO_SPRINTF
QString toString( Qt::DateFormat f = Qt::TextDate ) const;
#endif
QString toString( const QString& format ) const;
#endif
ExtDateTime addDays( int days ) const;
ExtDateTime addMonths( int months ) const;
ExtDateTime addYears( int years ) const;
ExtDateTime addSecs( int secs ) const;
int daysTo( const ExtDateTime & ) const;
int secsTo( const ExtDateTime & ) const;
bool operator==( const ExtDateTime &dt ) const;
bool operator!=( const ExtDateTime &dt ) const;
bool operator<( const ExtDateTime &dt ) const;
bool operator<=( const ExtDateTime &dt ) const;
bool operator>( const ExtDateTime &dt ) const;
bool operator>=( const ExtDateTime &dt ) const;
static ExtDateTime currentDateTime();
static ExtDateTime currentDateTime( Qt::TimeSpec );
#ifndef QT_NO_DATESTRING
static ExtDateTime fromString( const QString &s );
static ExtDateTime fromString( const QString &s, Qt::DateFormat f );
#endif
private:
ExtDate d;
QTime t;
#ifndef QT_NO_DATASTREAM
friend Q_EXPORT QDataStream &operator<<( QDataStream &, const ExtDateTime &);
friend Q_EXPORT QDataStream &operator>>( QDataStream &, ExtDateTime & );
#endif
};
/*****************************************************************************
Date and time stream functions
*****************************************************************************/
#ifndef QT_NO_DATASTREAM
Q_EXPORT QDataStream &operator<<( QDataStream &, const ExtDate & );
Q_EXPORT QDataStream &operator>>( QDataStream &, ExtDate & );
#endif // QT_NO_DATASTREAM
#endif // EXTDATE_H
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