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# ntqdatetime.h

This is the verbatim text of the ntqdatetime.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /*************************************************************************
    ** $Id: qt/ntqdatetime.h   3.3.8   edited Jan 11 14:38 $
    **
    ** Definition of date and time classes
    **
    ** Created : 940124
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the tools module of the TQt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file. Alternatively you may (at your option) use any
    ** later version of the GNU General Public License if such license has
    ** been publicly approved by Trolltech ASA (or its successors, if any)
    ** and the KDE Free TQt Foundation.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** Commercial License Agreement provided with the Software.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
    ** herein.
    **
    **********************************************************************/

    #ifndef TQDATETIME_H
    #define TQDATETIME_H

    #ifndef QT_H
    #include "ntqstring.h"
    #include "ntqnamespace.h"
    #endif // QT_H

    /*****************************************************************************
      TQDate class
     *****************************************************************************/

    class TQ_EXPORT TQDate
    {
    public:
        TQDate() { jd = 0; }
        TQDate( int y, int m, int d );

        bool isNull() const { return jd == 0; }
        bool isValid() const;

        int year() const;
        int month() const;
        int day() const;
        int dayOfWeek() const;
        int dayOfYear() const;
        int daysInMonth() const;
        int daysInYear() const;
        int weekNumber( int *yearNum = 0 ) const;

    #ifndef TQT_NO_TEXTDATE
    #ifndef TQT_NO_COMPAT
        static TQString monthName( int month ) { return shortMonthName( month ); }
        static TQString dayName( int weekday ) { return shortDayName( weekday ); }
    #endif
        static TQString shortMonthName( int month );
        static TQString shortDayName( int weekday );
        static TQString longMonthName( int month );
        static TQString longDayName( int weekday );
    #endif //TQT_NO_TEXTDATE
    #ifndef TQT_NO_TEXTSTRING
    #if !defined(TQT_NO_SPRINTF)
        TQString toString( TQt::DateFormat f = TQt::TextDate ) const;
    #endif
        TQString toString( const TQString& format ) const;
    #endif
        bool   setYMD( int y, int m, int d );

        TQDate  addDays( int days )		const;
        TQDate  addMonths( int months )      const;
        TQDate  addYears( int years )        const;
        int	   daysTo( const TQDate & )	const;

        bool   operator==( const TQDate &d ) const { return jd == d.jd; }
        bool   operator!=( const TQDate &d ) const { return jd != d.jd; }
        bool   operator<( const TQDate &d )	const { return jd < d.jd; }
        bool   operator<=( const TQDate &d ) const { return jd <= d.jd; }
        bool   operator>( const TQDate &d )	const { return jd > d.jd; }
        bool   operator>=( const TQDate &d ) const { return jd >= d.jd; }

        static TQDate currentDate();
        static TQDate currentDate( TQt::TimeSpec );
    #ifndef TQT_NO_DATESTRING
        static TQDate fromString( const TQString& s, TQt::DateFormat f = TQt::TextDate );
    #endif
        static bool	 isValid( int y, int m, int d );
        static bool	 leapYear( int year );

        static uint	 gregorianToJulian( int y, int m, int d );
        static void	 julianToGregorian( uint jd, int &y, int &m, int &d );
    private:
        uint	 jd;
        friend class TQDateTime;
    #ifndef TQT_NO_DATASTREAM
        friend TQ_EXPORT TQDataStream &operator<<( TQDataStream &, const TQDate & );
        friend TQ_EXPORT TQDataStream &operator>>( TQDataStream &, TQDate & );
    #endif
    };

    /*****************************************************************************
      TQTime class
     *****************************************************************************/

    class TQ_EXPORT TQTime
    {
    public:
        TQTime() { ds=0; }				// set null time
        TQTime( int h, int m, int s=0, int ms=0 );	// set time

        bool   isNull()	 const { return ds == 0; }
        bool   isValid()	 const;			// valid time

        int	   hour()	 const;			// 0..23
        int	   minute()	 const;			// 0..59
        int	   second()	 const;			// 0..59
        int	   msec()	 const;			// 0..999
    #ifndef TQT_NO_DATESTRING
    #ifndef TQT_NO_SPRINTF
        TQString toString( TQt::DateFormat f = TQt::TextDate )	 const;
    #endif
        TQString toString( const TQString& format ) const;
    #endif
        bool   setHMS( int h, int m, int s, int ms=0 );

        TQTime  addSecs( int secs )		const;
        int	   secsTo( const TQTime & )	const;
        TQTime  addMSecs( int ms )		const;
        int	   msecsTo( const TQTime & )	const;

        bool   operator==( const TQTime &d ) const { return ds == d.ds; }
        bool   operator!=( const TQTime &d ) const { return ds != d.ds; }
        bool   operator<( const TQTime &d )	const { return ds < d.ds; }
        bool   operator<=( const TQTime &d ) const { return ds <= d.ds; }
        bool   operator>( const TQTime &d )	const { return ds > d.ds; }
        bool   operator>=( const TQTime &d ) const { return ds >= d.ds; }

        static TQTime currentTime();
        static TQTime currentTime( TQt::TimeSpec );
    #ifndef TQT_NO_DATESTRING
        static TQTime fromString( const TQString& s, TQt::DateFormat f = TQt::TextDate );
    #endif
        static bool	 isValid( int h, int m, int s, int ms=0 );

        void   start();
        int	   restart();
        int	   elapsed() const;

    private:
        static bool currentTime( TQTime * );
        static bool currentTime( TQTime *, TQt::TimeSpec );

        uint   ds;
        friend class TQDateTime;
    #ifndef TQT_NO_DATASTREAM
        friend TQ_EXPORT TQDataStream &operator<<( TQDataStream &, const TQTime & );
        friend TQ_EXPORT TQDataStream &operator>>( TQDataStream &, TQTime & );
    #endif
    };

    /*****************************************************************************
      TQDateTime class
     *****************************************************************************/

    class TQ_EXPORT TQDateTime
    {
    public:
        TQDateTime() {}				// set null date and null time
        TQDateTime( const TQDate & );
        TQDateTime( const TQDate &, const TQTime & );

        bool   isNull()	const		{ return d.isNull() && t.isNull(); }
        bool   isValid()	const		{ return d.isValid() && t.isValid(); }

        TQDate  date()	const		{ return d; }
        TQTime  time()	const		{ return t; }
        uint   toTime_t()	const;
        void   setDate( const TQDate &date ) { d = date; }
        void   setTime( const TQTime &time ) { t = time; }
        void   setTime_t( uint secsSince1Jan1970UTC );
        void   setTime_t( uint secsSince1Jan1970UTC, TQt::TimeSpec );
    #ifndef TQT_NO_DATESTRING
    #ifndef TQT_NO_SPRINTF
        TQString toString( TQt::DateFormat f = TQt::TextDate )	const;
    #endif
        TQString toString( const TQString& format ) const;
    #endif
        TQDateTime addDays( int days )	const;
        TQDateTime addMonths( int months )   const;
        TQDateTime addYears( int years )     const;
        TQDateTime addSecs( int secs )	const;
        int	   daysTo( const TQDateTime & )	const;
        int	   secsTo( const TQDateTime & )	const;

        bool   operator==( const TQDateTime &dt ) const;
        bool   operator!=( const TQDateTime &dt ) const;
        bool   operator<( const TQDateTime &dt )  const;
        bool   operator<=( const TQDateTime &dt ) const;
        bool   operator>( const TQDateTime &dt )  const;
        bool   operator>=( const TQDateTime &dt ) const;

        static TQDateTime currentDateTime();
        static TQDateTime currentDateTime( TQt::TimeSpec );
    #ifndef TQT_NO_DATESTRING
        static TQDateTime fromString( const TQString& s, TQt::DateFormat f = TQt::TextDate );
    #endif
    private:
        TQDate  d;
        TQTime  t;
    #ifndef TQT_NO_DATASTREAM
        friend TQ_EXPORT TQDataStream &operator<<( TQDataStream &, const TQDateTime &);
        friend TQ_EXPORT TQDataStream &operator>>( TQDataStream &, TQDateTime & );
    #endif
    };

    /*****************************************************************************
      Date and time stream functions
     *****************************************************************************/

    #ifndef TQT_NO_DATASTREAM
    TQ_EXPORT TQDataStream &operator<<( TQDataStream &, const TQDate & );
    TQ_EXPORT TQDataStream &operator>>( TQDataStream &, TQDate & );
    TQ_EXPORT TQDataStream &operator<<( TQDataStream &, const TQTime & );
    TQ_EXPORT TQDataStream &operator>>( TQDataStream &, TQTime & );
    TQ_EXPORT TQDataStream &operator<<( TQDataStream &, const TQDateTime & );
    TQ_EXPORT TQDataStream &operator>>( TQDataStream &, TQDateTime & );
    #endif // TQT_NO_DATASTREAM

    #endif // TQDATETIME_H