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136 lines
2.9 KiB
136 lines
2.9 KiB
/* This file is part of the KDE project
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Copyright (C) 1998-2002 The KSpread Team
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www.koffice.org/kspread
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <tqdatetime.h>
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#include "kspread_functions_helper.h"
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/* DISABLED - we use KCalendarSystem instead
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void addMonths( TQDate & date, int months )
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{
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int d = date.day();
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int m = date.month() + months;
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int y = date.year();
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if ( m > 12 )
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{
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y += (int) ( m / 12 );
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m %= 12;
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}
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// e.g. 31 Feb: decrease day...
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while ( !TQDate::isValid( y, m, d ) && d > 0 )
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--d;
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date.setYMD( y, m, d );
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}
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void subMonths( TQDate & date, int months )
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{
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int d = date.day();
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int m = date.month() - months;
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int y = date.year();
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while ( m < 1 )
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{
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m += 12;
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y -= 1;
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}
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// e.g. 31 Feb: decrease day
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while ( !TQDate::isValid( y, m, d ) && d > 0 )
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--d;
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date.setYMD( y, m, d );
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}
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*/
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int KSpread::daysPerYear(TQDate const & date, int basis)
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{
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switch( basis )
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{
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case 0:
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return 360;
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case 1:
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if ( TQDate::leapYear( date.year() ) )
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return 366;
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return 365;
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case 2:
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return 360;
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case 3:
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return 365;
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case 4:
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return 360;
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}
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return -1;
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}
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int KSpread::daysBetweenDates(TQDate const & date1, TQDate const & date2, int basis)
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{
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int day1, day2, month1, month2, year1, year2;
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bool isLeapYear = false;
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int days, months, years;
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day1 = date1.day();
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month1 = date1.month();
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year1 = date1.year();
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day2 = date2.day();
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month2 = date2.month();
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year2 = date2.year();
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years = year2 - year1;
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months = month2 - month1 + years * 12;
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days = day2 - day1;
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isLeapYear = TQDate::leapYear( year1 );
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switch (basis)
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{
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case 0:
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if ( month1 == 2 && month2 != 2 && year1 == year2 )
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{
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if ( isLeapYear )
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return months * 30 + days - 1;
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else
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return months * 30 + days - 2;
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}
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return months * 30 + days;
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case 1: // TODO: real days for difference between months!
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// return ( month2 - month1 ) * 30 + years * 360 + days;
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case 2: // TODO: real days for difference between months!
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// return ( month2 - month1 ) * 30 + years * 365 + days;
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case 3:
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return date1.daysTo( date2 );
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case 4:
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return months * 30 + days;
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}
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return -1;
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}
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