datetime.cpp

/*
 *  datetime.cpp  -  date/time representation with optional date-only value
 *  Program:  kalarm
 *  Copyright (C) 2003, 2005 by David Jarvie <software@astrojar.org.uk>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
#include "kalarm.h"
 
#include <tdeglobal.h>
#include <tdelocale.h>
 
#include "datetime.h"
 
TQTime DateTime::mStartOfDay;
 
TQTime DateTime::time() const
{
    return mDateOnly ? mStartOfDay : mDateTime.time();
}
 
TQDateTime DateTime::dateTime() const
{
    return mDateOnly ? TQDateTime(mDateTime.date(), mStartOfDay) : mDateTime;
}
 
TQString DateTime::formatLocale(bool shortFormat) const
{
    if (mDateOnly)
        return TDEGlobal::locale()->formatDate(mDateTime.date(), shortFormat);
    else if (mTimeValid)
        return TDEGlobal::locale()->formatDateTime(mDateTime, shortFormat);
    else
        return TQString();
}
 
bool operator==(const DateTime& dt1, const DateTime& dt2)
{
    if (dt1.mDateTime.date() != dt2.mDateTime.date())
        return false;
    if (dt1.mDateOnly && dt2.mDateOnly)
        return true;
    if (!dt1.mDateOnly && !dt2.mDateOnly)
    {
        bool valid1 = dt1.mTimeValid && dt1.mDateTime.time().isValid();
        bool valid2 = dt2.mTimeValid && dt2.mDateTime.time().isValid();
        if (!valid1  &&  !valid2)
            return true;
        if (!valid1  ||  !valid2)
            return false;
        return dt1.mDateTime.time() == dt2.mDateTime.time();
    }
    return (dt1.mDateOnly ? dt2.mDateTime.time() : dt1.mDateTime.time()) == DateTime::startOfDay();
}
 
bool operator<(const DateTime& dt1, const DateTime& dt2)
{
    if (dt1.mDateTime.date() != dt2.mDateTime.date())
        return dt1.mDateTime.date() < dt2.mDateTime.date();
    if (dt1.mDateOnly && dt2.mDateOnly)
        return false;
    if (!dt1.mDateOnly && !dt2.mDateOnly)
        return dt1.mDateTime.time() < dt2.mDateTime.time();
    TQTime t = DateTime::startOfDay();
    if (dt1.mDateOnly)
        return t < dt2.mDateTime.time();
    return dt1.mDateTime.time() < t;
}