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/* This file is part of the KDE project
   Copyright (C) 2003 Dag Andersen <danders@get2net.dk>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/

#include "kptdatetime.h"

#include <kdebug.h>

namespace KPlato
{

DateTime::DateTime() : TQDateTime() {
}

DateTime::DateTime(const TQDateTime &dt) : TQDateTime(dt.date(), dt.time()) {
}

DateTime::DateTime(const TQDate &date, const TQTime &time) : TQDateTime(date, time) {
}

void DateTime::add(const Duration &duration) {
    if (isValid())
        *this = TQDateTime(addSecs(duration.seconds()));
    //kdDebug()<<k_funcinfo<<"days,secs: "<<days<<","<<secs<<" gives: "<<toString()<<endl;
}

void DateTime::subtract(const Duration &duration) {
    if (isValid())
        *this = TQDateTime(addSecs(-duration.seconds()));
    //kdDebug()<<k_funcinfo<<"days,secs: "<<days<<","<<secs<<" gives: "<<toString()<<endl;
}

Duration DateTime::duration(const DateTime &dt) const {
    Duration dur;
    if (isValid() && dt.isValid()) {
        if (dt < *this) {
            dur.addDays(dt.daysTo(*this));
            dur.addSeconds(dt.time().secsTo(time()));
        } else {
            dur.addDays(daysTo(dt));
            dur.addSeconds(time().secsTo(dt.time()));
        }
    }
    return dur;
}

DateTime DateTime::operator+(const Duration &duration) const {
    DateTime d(*this);
    d.add(duration);
    return d;
}

DateTime& DateTime::operator+=(const Duration &duration) {
    add(duration);
    return *this;
}

DateTime DateTime::operator-(const Duration &duration) const {
    DateTime d(*this);
    d.subtract(duration);
    return d;
}

DateTime& DateTime::operator-=(const Duration &duration) {
    subtract(duration);
    return *this;
}

}  //KPlato namespace