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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-06 15:56:40 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-06 15:56:40 -0600
commite16866e072f94410321d70daedbcb855ea878cac (patch)
treeee3f52eabde7da1a0e6ca845fb9c2813cf1558cf /kdecore/kcalendarsystemhijri.cpp
parenta58c20c1a7593631a1b50213c805507ebc16adaf (diff)
downloadtdelibs-e16866e072f94410321d70daedbcb855ea878cac.tar.gz
tdelibs-e16866e072f94410321d70daedbcb855ea878cac.zip
Actually move the kde files that were renamed in the last commit
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-/*
- Copyright (c) 2002-2003 Carlos Moro <cfmoro@correo.uniovi.es>
- Copyright (c) 2002-2003 Hans Petter Bieker <bieker@kde.org>
-
- 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.
-*/
-
-// Derived hijri kde calendar class
-
-#include <tqdatetime.h>
-#include <tqstring.h>
-
-#include <klocale.h>
-#include <kdebug.h>
-
-#include "kcalendarsystemhijri.h"
-
-/*
- The following C++ code is translated from the Lisp code
- in ``Calendrical Calculations'' by Nachum Dershowitz and
- Edward M. Reingold, Software---Practice & Experience,
- vol. 20, no. 9 (September, 1990), pp. 899--928.
-
- This code is in the public domain, but any use of it
- should publically acknowledge its source.
-
- Classes GregorianDate, IslamicDate
- */
-
-static int lastDayOfGregorianMonth(int month, int year) {
-// Compute the last date of the month for the Gregorian calendar.
-
- switch (month) {
- case 2:
- if ((((year % 4) == 0) && ((year % 100) != 0))
- || ((year % 400) == 0))
- return 29;
- else
- return 28;
- case 4:
- case 6:
- case 9:
- case 11: return 30;
- default: return 31;
- }
-}
-
-class GregorianDate {
-private:
- int year; // 1...
- int month; // 1 == January, ..., 12 == December
- int day; // 1..lastDayOfGregorianMonth(month, year)
-
-public:
- GregorianDate(int m, int d, int y) { month = m; day = d; year = y; }
-
- GregorianDate(int d) { // Computes the Gregorian date from the absolute date.
-
- // Search forward year by year from approximate year
- year = d/366;
- while (d >= GregorianDate(1,1,year+1))
- year++;
- // Search forward month by month from January
- month = 1;
- while (d > GregorianDate(month, lastDayOfGregorianMonth(month,year), year))
- month++;
- day = d - GregorianDate(month,1,year) + 1;
- }
-
- operator int() { // Computes the absolute date from the Gregorian date.
- int N = day; // days this month
- for (int m = month - 1; m > 0; m--) // days in prior months this year
- N = N + lastDayOfGregorianMonth(m, year);
- return
- (N // days this year
- + 365 * (year - 1) // days in previous years ignoring leap days
- + (year - 1)/4 // Julian leap days before this year...
- - (year - 1)/100 // ...minus prior century years...
- + (year - 1)/400); // ...plus prior years divisible by 400
- }
-
- int getMonth() { return month; }
- int getDay() { return day; }
- int getYear() { return year; }
-
-};
-
-static int IslamicLeapYear(int year) {
-// True if year is an Islamic leap year
-
- if ((((11 * year) + 14) % 30) < 11)
- return 1;
- else
- return 0;
-}
-
-static const int IslamicEpoch = 227014; // Absolute date of start of
- // Islamic calendar
-
-static int lastDayOfIslamicMonth(int month, int year) {
-// Last day in month during year on the Islamic calendar.
-
- if (((month % 2) == 1) || ((month == 12) && IslamicLeapYear(year)))
- return 30;
- else
- return 29;
-}
-
-class IslamicDate {
-private:
- int year; // 1...
- int month; // 1..13 (12 in a common year)
- int day; // 1..lastDayOfIslamicMonth(month,year)
-
-public:
- IslamicDate(int m, int d, int y) { month = m; day = d; year = y; }
-
- IslamicDate(int d) { // Computes the Islamic date from the absolute date.
- if (d <= IslamicEpoch) { // Date is pre-Islamic
- month = 0;
- day = 0;
- year = 0;
- }
- else {
- // Search forward year by year from approximate year
- year = (d - IslamicEpoch) / 355;
- while (d >= IslamicDate(1,1,year+1))
- year++;
- // Search forward month by month from Muharram
- month = 1;
- while (d > IslamicDate(month, lastDayOfIslamicMonth(month,year), year))
- month++;
- day = d - IslamicDate(month,1,year) + 1;
- }
- }
-
- operator int() { // Computes the absolute date from the Islamic date.
- return (day // days so far this month
- + 29 * (month - 1) // days so far...
- + month/2 // ...this year
- + 354 * (year - 1) // non-leap days in prior years
- + (3 + (11 * year)) / 30 // leap days in prior years
- + IslamicEpoch); // days before start of calendar
- }
-
- int getMonth() { return month; }
- int getDay() { return day; }
- int getYear() { return year; }
-
-};
-
-static void gregorianToHijri(const TQDate & date, int * pYear, int * pMonth,
- int * pDay)
-{
- GregorianDate gregorian(date.month(),date.day(),date.year());
- int absolute = gregorian;
-
- IslamicDate islamic(absolute);
-
- if (pYear)
- *pYear = islamic.getYear();
- if (pMonth)
- *pMonth = islamic.getMonth();
- if (pDay)
- *pDay = islamic.getDay();
-}
-
-KCalendarSystemHijri::KCalendarSystemHijri(const KLocale * locale)
- : KCalendarSystem(locale)
-{
-}
-
-KCalendarSystemHijri::~KCalendarSystemHijri()
-{
-}
-
-int KCalendarSystemHijri::year(const TQDate& date) const
-{
- int y;
- gregorianToHijri(date, &y, 0, 0);
- return y;
-}
-
-int KCalendarSystemHijri::month(const TQDate& date) const
-{
- int m;
- gregorianToHijri(date, 0, &m, 0);
- return m;
-}
-
-int KCalendarSystemHijri::day(const TQDate& date) const
-{
- int d;
- gregorianToHijri(date, 0, 0, &d);
- return d;
-}
-
-int KCalendarSystemHijri::monthsInYear( const TQDate & date ) const
-{
- Q_UNUSED( date )
-
- return 12;
-}
-
-int KCalendarSystemHijri::weeksInYear(int year) const
-{
- TQDate temp;
- setYMD(temp, year, 12, lastDayOfIslamicMonth(12, year));
-
- // If the last day of the year is in the first week, we have to check the
- // week before
- if ( weekNumber(temp) == 1 )
- temp = addDays(temp, -7);
-
- return weekNumber(temp);
-}
-
-int KCalendarSystemHijri::weekNumber(const TQDate& date, int * yearNum) const
-{
- TQDate firstDayWeek1, lastDayOfYear;
- int y = year(date);
- int week;
- int weekDay1, dayOfWeek1InYear;
-
- // let's guess 1st day of 1st week
- setYMD(firstDayWeek1, y, 1, 1);
- weekDay1 = dayOfWeek(firstDayWeek1);
-
- // iso 8601: week 1 is the first containing thursday and week starts on
- // monday
- if (weekDay1 > 4 )
- firstDayWeek1 = addDays(firstDayWeek1 , 7 - weekDay1 + 1); // next monday
-
- dayOfWeek1InYear = dayOfYear(firstDayWeek1);
-
- if ( dayOfYear(date) < dayOfWeek1InYear ) // our date in prev year's week
- {
- if ( yearNum )
- *yearNum = y - 1;
- return weeksInYear(y - 1);
- }
-
- // let' check if its last week belongs to next year
- setYMD(lastDayOfYear, y, 12, lastDayOfIslamicMonth(12, y));
- if ( (dayOfYear(date) >= daysInYear(date) - dayOfWeek(lastDayOfYear) + 1)
- // our date is in last week
- && dayOfWeek(lastDayOfYear) < 4) // 1st week in next year has thursday
- {
- if ( yearNum )
- *yearNum = y + 1;
- week = 1;
- }
- else
- {
- if ( weekDay1 < 5 )
- firstDayWeek1 = addDays(firstDayWeek1, - (weekDay1 - 1));
-
- week = firstDayWeek1.daysTo(date) / 7 + 1;
- }
-
- return week;
-}
-
-TQString KCalendarSystemHijri::monthName(const TQDate& date,
- bool shortName) const
-{
- return monthName(month(date), year(date), shortName);
-}
-
-TQString KCalendarSystemHijri::monthNamePossessive(const TQDate& date,
- bool shortName) const
-{
- return monthNamePossessive(month(date), year(date), shortName);
-}
-
-TQString KCalendarSystemHijri::monthName(int month, int year, bool shortName)
- const {
-
- Q_UNUSED(year);
-
- if (shortName)
- switch ( month )
- {
- case 1:
- return locale()->translate("Muharram");
- case 2:
- return locale()->translate("Safar");
- case 3:
- return locale()->translate("R. Awal");
- case 4:
- return locale()->translate("R. Thaani");
- case 5:
- return locale()->translate("J. Awal");
- case 6:
- return locale()->translate("J. Thaani");
- case 7:
- return locale()->translate("Rajab");
- case 8:
- return locale()->translate("Sha`ban");
- case 9:
- return locale()->translate("Ramadan");
- case 10:
- return locale()->translate("Shawwal");
- case 11:
- return locale()->translate("Qi`dah");
- case 12:
- return locale()->translate("Hijjah");
- }
- else
- switch ( month )
- {
- case 1:
- return locale()->translate("Muharram");
- case 2:
- return locale()->translate("Safar");
- case 3:
- return locale()->translate("Rabi` al-Awal");
- case 4:
- return locale()->translate("Rabi` al-Thaani");
- case 5:
- return locale()->translate("Jumaada al-Awal");
- case 6:
- return locale()->translate("Jumaada al-Thaani");
- case 7:
- return locale()->translate("Rajab");
- case 8:
- return locale()->translate("Sha`ban");
- case 9:
- return locale()->translate("Ramadan");
- case 10:
- return locale()->translate("Shawwal");
- case 11:
- return locale()->translate("Thu al-Qi`dah");
- case 12:
- return locale()->translate("Thu al-Hijjah");
- }
-
- return TQString::null;
-}
-
-TQString KCalendarSystemHijri::monthNamePossessive(int month, int year,
- bool shortName) const
-{
- Q_UNUSED(year);
-
- if (shortName)
- switch ( month )
- {
- case 1:
- return locale()->translate("of Muharram");
- case 2:
- return locale()->translate("of Safar");
- case 3:
- return locale()->translate("of R. Awal");
- case 4:
- return locale()->translate("of R. Thaani");
- case 5:
- return locale()->translate("of J. Awal");
- case 6:
- return locale()->translate("of J. Thaani");
- case 7:
- return locale()->translate("of Rajab");
- case 8:
- return locale()->translate("of Sha`ban");
- case 9:
- return locale()->translate("of Ramadan");
- case 10:
- return locale()->translate("of Shawwal");
- case 11:
- return locale()->translate("of Qi`dah");
- case 12:
- return locale()->translate("of Hijjah");
- }
- else
- switch ( month )
- {
- case 1:
- return locale()->translate("of Muharram");
- case 2:
- return locale()->translate("of Safar");
- case 3:
- return locale()->translate("of Rabi` al-Awal");
- case 4:
- return locale()->translate("of Rabi` al-Thaani");
- case 5:
- return locale()->translate("of Jumaada al-Awal");
- case 6:
- return locale()->translate("of Jumaada al-Thaani");
- case 7:
- return locale()->translate("of Rajab");
- case 8:
- return locale()->translate("of Sha`ban");
- case 9:
- return locale()->translate("of Ramadan");
- case 10:
- return locale()->translate("of Shawwal");
- case 11:
- return locale()->translate("of Thu al-Qi`dah");
- case 12:
- return locale()->translate("of Thu al-Hijjah");
- }
-
- return TQString::null;
-}
-
-bool KCalendarSystemHijri::setYMD(TQDate & date, int y, int m, int d) const
-{
- // range checks
- if ( y < minValidYear() || y > maxValidYear() )
- return false;
-
- if ( m < 1 || m > 12 )
- return false;
-
- if ( d < 1 || d > lastDayOfIslamicMonth(m, y) )
- return false;
-
- IslamicDate islamic (m, d, y);
- int absolute = islamic;
- GregorianDate gregorian(absolute);
-
- return date.setYMD(gregorian.getYear(), gregorian.getMonth(),
- gregorian.getDay());
-}
-
-TQString KCalendarSystemHijri::weekDayName(int day, bool shortName) const
-{
- if ( shortName )
- switch (day)
- {
- case 1:
- return locale()->translate("Ith");
- case 2:
- return locale()->translate("Thl");
- case 3:
- return locale()->translate("Arb");
- case 4:
- return locale()->translate("Kha");
- case 5:
- return locale()->translate("Jum");
- case 6:
- return locale()->translate("Sab");
- case 7:
- return locale()->translate("Ahd");
- }
- else
- switch ( day )
- {
- case 1:
- return locale()->translate("Yaum al-Ithnain");
- case 2:
- return locale()->translate("Yau al-Thulatha");
- case 3:
- return locale()->translate("Yaum al-Arbi'a");
- case 4:
- return locale()->translate("Yaum al-Khamees");
- case 5:
- return locale()->translate("Yaum al-Jumma");
- case 6:
- return locale()->translate("Yaum al-Sabt");
- case 7:
- return locale()->translate("Yaum al-Ahad");
- }
-
- return TQString::null;
-}
-
-TQString KCalendarSystemHijri::weekDayName(const TQDate& date,
- bool shortName) const
-{
- return weekDayName(dayOfWeek(date), shortName);
-}
-
-int KCalendarSystemHijri::dayOfWeek(const TQDate& date) const
-{
- return date.dayOfWeek(); // same as gregorian
-}
-
-int KCalendarSystemHijri::dayOfYear(const TQDate & date) const
-{
- TQDate first;
- setYMD(first, year(date), 1, 1);
-
- return first.daysTo(date) + 1;
-
- return 100;
-}
-
-int KCalendarSystemHijri::daysInMonth(const TQDate& date) const
-{
- int y, m;
- gregorianToHijri(date, &y, &m, 0);
-
- return lastDayOfIslamicMonth(m, y);
-}
-
-// Min valid year that may be converted to QDate
-int KCalendarSystemHijri::minValidYear() const
-{
- TQDate date(1753, 1, 1);
-
- return year(date);
-}
-
-// Max valid year that may be converted to QDate
-int KCalendarSystemHijri::maxValidYear() const
-{
- TQDate date(8000, 1, 1);
-
- return year(date);
-}
-
-int KCalendarSystemHijri::daysInYear(const TQDate & date) const
-{
- TQDate first, last;
- setYMD(first, year(date), 1, 1);
- setYMD(last, year(date) + 1, 1, 1);
-
- return first.daysTo(last);
-}
-
-int KCalendarSystemHijri::weekDayOfPray() const
-{
- return 5; // friday
-}
-
-TQDate KCalendarSystemHijri::addDays( const TQDate & date, int ndays ) const
-{
- return TQT_TQDATE_OBJECT(date.addDays( ndays ));
-}
-
-TQDate KCalendarSystemHijri::addMonths( const TQDate & date, int nmonths ) const
-{
- TQDate result = date;
- int m = month(date);
- int y = year(date);
-
- if ( nmonths < 0 )
- {
- m += 12;
- y -= 1;
- }
-
- --m; // this only works if we start counting at zero
- m += nmonths;
- y += m / 12;
- m %= 12;
- ++m;
-
- setYMD( result, y, m, day(date) );
-
- return result;
-}
-
-TQDate KCalendarSystemHijri::addYears( const TQDate & date, int nyears ) const
-{
- TQDate result = date;
- int y = year(date) + nyears;
-
- setYMD( result, y, month(date), day(date) );
-
- return result;
-}
-
-TQString KCalendarSystemHijri::calendarName() const
-{
- return TQString::tqfromLatin1("hijri");
-}
-
-bool KCalendarSystemHijri::isLunar() const
-{
- return true;
-}
-
-bool KCalendarSystemHijri::isLunisolar() const
-{
- return false;
-}
-
-bool KCalendarSystemHijri::isSolar() const
-{
- return false;
-}