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/* This file is part of the KDE project
Copyright (C) 1998-2002 The KSpread Team
www.koffice.org/kspread
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.
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 <tqdatetime.h>
#include "kspread_functions_helper.h"
/* DISABLED - we use KCalendarSystem instead
void addMonths( TQDate & date, int months )
{
int d = date.day();
int m = date.month() + months;
int y = date.year();
if ( m > 12 )
{
y += (int) ( m / 12 );
m %= 12;
}
// e.g. 31 Feb: decrease day...
while ( !TQDate::isValid( y, m, d ) && d > 0 )
--d;
date.setYMD( y, m, d );
}
void subMonths( TQDate & date, int months )
{
int d = date.day();
int m = date.month() - months;
int y = date.year();
while ( m < 1 )
{
m += 12;
y -= 1;
}
// e.g. 31 Feb: decrease day
while ( !TQDate::isValid( y, m, d ) && d > 0 )
--d;
date.setYMD( y, m, d );
}
*/
int KSpread::daysPerYear(TQDate const & date, int basis)
{
switch( basis )
{
case 0:
return 360;
case 1:
if ( TQDate::leapYear( date.year() ) )
return 366;
return 365;
case 2:
return 360;
case 3:
return 365;
case 4:
return 360;
}
return -1;
}
int KSpread::daysBetweenDates(TQDate const & date1, TQDate const & date2, int basis)
{
int day1, day2, month1, month2, year1, year2;
bool isLeapYear = false;
int days, months, years;
day1 = date1.day();
month1 = date1.month();
year1 = date1.year();
day2 = date2.day();
month2 = date2.month();
year2 = date2.year();
years = year2 - year1;
months = month2 - month1 + years * 12;
days = day2 - day1;
isLeapYear = TQDate::leapYear( year1 );
switch (basis)
{
case 0:
if ( month1 == 2 && month2 != 2 && year1 == year2 )
{
if ( isLeapYear )
return months * 30 + days - 1;
else
return months * 30 + days - 2;
}
return months * 30 + days;
case 1: // TODO: real days for difference between months!
// return ( month2 - month1 ) * 30 + years * 360 + days;
case 2: // TODO: real days for difference between months!
// return ( month2 - month1 ) * 30 + years * 365 + days;
case 3:
return date1.daysTo( date2 );
case 4:
return months * 30 + days;
}
return -1;
}
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