/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: calendar_jewish.cxx,v $
*
* $Revision: 1.11 $
*
* last change: $Author: obo $ $Date: 2006/09/17 09:15:38 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_i18npool.hxx"
#include <math.h>
#include <stdio.h>
#include "calendar_persian.hxx"
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::i18n;
using namespace ::rtl;
#define ERROR RuntimeException()
/* prototypes */
void gregorian_to_jalali(/* output */ int *j_y, int *j_m, int *j_d,
/* input */ int g_y, int g_m, int g_d);
void jalali_to_gregorian(/* output */ int *g_y, int *g_m, int *g_d,
/* input */ int j_y, int j_m, int j_d);
/* implementation */
#include <stdlib.h>
int g_days_in_month[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
int j_days_in_month[12] = {31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29};
/*const char *j_month_name[13] = {"",
"Farvardin", "Ordibehesht", "Khordad",
"Tir", "Mordad", "Shahrivar",
"Mehr", "Aban", "Azar",
"Dey", "Bahman", "Esfand"};
*/
void gregorian_to_jalali(int *j_y, int *j_m, int *j_d,
int g_y, int g_m, int g_d)
{
int gy, gm, gd;
int jy, jm, jd;
long g_day_no, j_day_no;
int j_np;
int i;
gy = g_y-1600;
gm = g_m-1;
gd = g_d-1;
g_day_no = 365*gy+(gy+3)/4-(gy+99)/100+(gy+399)/400;
for (i=0;i<gm;++i)
g_day_no += g_days_in_month[i];
if (gm>1 && ((gy%4==0 && gy%100!=0) || (gy%400==0)))
/* leap and after Feb */
++g_day_no;
g_day_no += gd;
j_day_no = g_day_no-79;
j_np = j_day_no / 12053;
j_day_no %= 12053;
jy = 979+33*j_np+4*(j_day_no/1461);
j_day_no %= 1461;
if (j_day_no >= 366) {
jy += (j_day_no-1)/365;
j_day_no = (j_day_no-1)%365;
}
for (i = 0; i < 11 && j_day_no >= j_days_in_month[i]; ++i) {
j_day_no -= j_days_in_month[i];
}
jm = i+1;
jd = j_day_no+1;
*j_y = jy;
*j_m = jm;
*j_d = jd;
}
void jalali_to_gregorian(int *g_y, int *g_m, int *g_d,
int j_y, int j_m, int j_d)
{
int gy, gm, gd;
int jy, jm, jd;
long g_day_no, j_day_no;
int leap;
int i;
jy = j_y-979;
jm = j_m-1;
jd = j_d-1;
j_day_no = 365*jy + (jy/33)*8 + (jy%33+3)/4;
for (i=0; i < jm; ++i)
j_day_no += j_days_in_month[i];
j_day_no += jd;
g_day_no = j_day_no+79;
gy = 1600 + 400*(g_day_no/146097); /* 146097 = 365*400 + 400/4 - 400/100 + 400/400 */
g_day_no = g_day_no % 146097;
leap = 1;
if (g_day_no >= 36525) /* 36525 = 365*100 + 100/4 */
{
g_day_no--;
gy += 100*(g_day_no/36524); /* 36524 = 365*100 + 100/4 - 100/100 */
g_day_no = g_day_no % 36524;
if (g_day_no >= 365)
g_day_no++;
else
leap = 0;
}
gy += 4*(g_day_no/1461); /* 1461 = 365*4 + 4/4 */
g_day_no %= 1461;
if (g_day_no >= 366) {
leap = 0;
g_day_no--;
gy += g_day_no/365;
g_day_no = g_day_no % 365;
}
for (i = 0; g_day_no >= g_days_in_month[i] + (i == 1 && leap); i++)
g_day_no -= g_days_in_month[i] + (i == 1 && leap);
gm = i+1;
gd = g_day_no+1;
*g_y = gy;
*g_m = gm;
*g_d = gd;
}
// not used
//static UErrorCode status; // status is shared in all calls to Calendar, it has to be reset for each call.
Calendar_Persian::Calendar_Persian()
{
cCalendar = "com.sun.star.i18n.Calendar_Persian";
}
// map field value from gregorian calendar to other calendar, it can be overwritten by derived class.
void SAL_CALL Calendar_Persian::mapFromGregorian() throw(RuntimeException)
{
int y = fieldValue[CalendarFieldIndex::YEAR];
if (fieldValue[CalendarFieldIndex::ERA] == 0)
y = 1 - y;
int j_y = 0, j_m = 0, j_d = 0;
gregorian_to_jalali(&j_y, &j_m, &j_d, y,
fieldValue[CalendarFieldIndex::MONTH] + 1, fieldValue[CalendarFieldIndex::DAY_OF_MONTH]);
fieldValue[CalendarFieldIndex::ERA] = j_y <= 0 ? 0 : 1;
fieldValue[CalendarFieldIndex::MONTH] = j_m - 1;
fieldValue[CalendarFieldIndex::DAY_OF_MONTH] = j_d;
fieldValue[CalendarFieldIndex::YEAR] = (j_y <= 0 ? 1 - j_y : j_y);
}
#define FIELDS ((1 << CalendarFieldIndex::ERA) | (1 << CalendarFieldIndex::YEAR) | (1 << CalendarFieldIndex::MONTH) | (1 << CalendarFieldIndex::DAY_OF_MONTH))
// map field value from other calendar to gregorian calendar, it should be implemented.
void SAL_CALL Calendar_Persian::mapToGregorian() throw(RuntimeException)
{
int g_y, g_m, g_d;
if (fieldSet & FIELDS) {
sal_Int32 day = (sal_Int32)fieldSetValue[CalendarFieldIndex::DAY_OF_MONTH];
sal_Int32 month = (sal_Int32)fieldSetValue[CalendarFieldIndex::MONTH] + 1;
sal_Int32 year = (sal_Int32)fieldSetValue[CalendarFieldIndex::YEAR];
if (fieldSetValue[CalendarFieldIndex::ERA] == 0)
year *= -1;
jalali_to_gregorian(&g_y, &g_m, &g_d, year, month, day);
fieldSetValue[CalendarFieldIndex::ERA] = g_y <= 0 ? 0 : 1;
fieldSetValue[CalendarFieldIndex::MONTH] = sal::static_int_cast<sal_Int16>(g_m - 1);
fieldSetValue[CalendarFieldIndex::DAY_OF_MONTH] = (sal_Int16) g_d;
fieldSetValue[CalendarFieldIndex::YEAR] = (sal_Int16) abs(g_y);
fieldSet |= FIELDS;
}
}
/*
// Methods in XExtendedCalendar
OUString SAL_CALL
Calendar_Persian::getDisplayString( sal_Int32 nCalendarDisplayCode, sal_Int16 nNativeNumberMode )
throw (RuntimeException)
{
nNativeNumberMode = NativeNumberMode::NATNUM2; // make Hebrew number for Jewish calendar
if (nCalendarDisplayCode == CalendarDisplayCode::SHORT_YEAR) {
sal_Int32 value = getValue(CalendarFieldIndex::YEAR) % 1000; // take last 3 digits
return aNatNum.getNativeNumberString(OUString::valueOf(value), aLocale, nNativeNumberMode );
}
else
return Calendar_gregorian::getDisplayString(nCalendarDisplayCode, nNativeNumberMode );
}
*/