File indexing completed on 2023-09-24 04:04:52

 /*
     Copyright 2010 John Layt <john@layt.net>
 
     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 "klocalizeddate.h"
 
 #include "kcalendarsystem.h"
 
 #include <QDebug>
 #include <QDataStream>
 
 /*****************************************************************************
  *
  *                               Private Section
  *
  *****************************************************************************/
 
 class KLocalizedDatePrivate : public QSharedData
 {
 public:
     KDELIBS4SUPPORT_DEPRECATED explicit KLocalizedDatePrivate(const QDate &date, const KCalendarSystem *calendar, bool manageCalendar);
     KLocalizedDatePrivate(const KLocalizedDatePrivate &rhs);
     KLocalizedDatePrivate &operator=(const KLocalizedDatePrivate &rhs);
     virtual ~KLocalizedDatePrivate();
 
     QDate m_date;
     const KCalendarSystem *m_calendar;
     bool m_manageCalendar;
 };
 
 KLocalizedDatePrivate::KLocalizedDatePrivate(const QDate &date, const KCalendarSystem *calendar, bool manageCalendar)
     : QSharedData(),
       m_date(date),
       m_calendar(calendar),
       m_manageCalendar(manageCalendar)
 {
 }
 
 KLocalizedDatePrivate::KLocalizedDatePrivate(const KLocalizedDatePrivate &rhs)
     : QSharedData(rhs),
       m_date(rhs.m_date),
       m_calendar(rhs.m_calendar),
       m_manageCalendar(rhs.m_manageCalendar)
 {
     // If we're managing the calendar object, then take a copy,
     // i.e. user called setCalendarSystem() rather than passing a custom one into the constructor
     if (m_manageCalendar) {
         m_calendar =  KCalendarSystem::create(m_calendar->calendarSystem(), new KLocale(*m_calendar->locale()));
     }
 }
 
 KLocalizedDatePrivate &KLocalizedDatePrivate::operator=(const KLocalizedDatePrivate &rhs)
 {
     m_date = rhs.m_date;
     m_calendar = rhs.m_calendar;
     m_manageCalendar = rhs.m_manageCalendar;
     // If we're managing the calendar object, then take a copy,
     // i.e. user called setCalendarSystem() rather than passing a custom one into the constructor
     if (rhs.m_manageCalendar) {
         m_calendar =  KCalendarSystem::create(m_calendar->calendarSystem(), new KLocale(*m_calendar->locale()));
     }
     return *this;
 }
 
 KLocalizedDatePrivate::~KLocalizedDatePrivate()
 {
     // If we're managing the calendar object, then delete it,
     // i.e. user called setCalendarSystem() rather than passing a custom one into the constructor
     if (m_manageCalendar) {
         delete m_calendar;
     }
 }
 
 /*****************************************************************************
  *
  *                            Date Creation Section
  *
  *****************************************************************************/
 
 KLocalizedDate::KLocalizedDate(const QDate &date, const KCalendarSystem *calendarSystem)
     : d(new KLocalizedDatePrivate(date, calendarSystem, false))
 {
 }
 
 KLocalizedDate::KLocalizedDate(int year, int month, int day, const KCalendarSystem *calendarSystem)
     : d(new KLocalizedDatePrivate(QDate(), calendarSystem, false))
 {
     setDate(year, month, day);
 }
 
 KLocalizedDate::KLocalizedDate(const KLocalizedDate &rhs)
     : d(new KLocalizedDatePrivate(*rhs.d))
 {
 }
 
 KLocalizedDate &KLocalizedDate::operator=(const KLocalizedDate &rhs)
 {
     *d = *rhs.d;
     return *this;
 }
 
 KLocalizedDate &KLocalizedDate::operator=(const QDate &rhs)
 {
     d->m_date = rhs;
     return *this;
 }
 
 KLocalizedDate::~KLocalizedDate()
 {
 }
 
 /*****************************************************************************
  *
  *                           Calendar System Section
  *
  *****************************************************************************/
 
 void KLocalizedDate::setCalendarSystem(KLocale::CalendarSystem calendarSystem)
 {
     if (calendarSystem == calendar()->calendarSystem()) {
         return;
     }
     KCalendarSystem *newCalendar =  KCalendarSystem::create(calendarSystem,
                                     new KLocale(*calendar()->locale()));
     if (d->m_manageCalendar) {
         delete d->m_calendar;
     }
     d->m_calendar = newCalendar;
 }
 
 KLocale::CalendarSystem KLocalizedDate::calendarSystem()
 {
     return calendar()->calendarSystem();
 }
 
 const KCalendarSystem *KLocalizedDate::calendar() const
 {
     if (d->m_calendar) {
         return d->m_calendar;
     }
     return  KLocale::global()->calendar();
 }
 
 /*****************************************************************************
  *
  *                           Date Status Section
  *
  *****************************************************************************/
 
 bool KLocalizedDate::isNull() const
 {
     return date().isNull();
 }
 
 bool KLocalizedDate::isValid() const
 {
     return calendar()->isValid(date());
 }
 
 /*****************************************************************************
  *
  *                           Date Setting Section
  *
  *****************************************************************************/
 
 bool KLocalizedDate::setDate(const QDate &date)
 {
     d->m_date = date;
     return isValid();
 }
 
 bool KLocalizedDate::setDate(int year, int month, int day)
 {
     calendar()->setDate(d->m_date, year, month, day);
     return isValid();
 }
 
 bool KLocalizedDate::setDate(int year, int dayOfYear)
 {
     calendar()->setDate(d->m_date, year, dayOfYear);
     return isValid();
 }
 
 bool KLocalizedDate::setDate(QString eraName, int yearInEra, int month, int day)
 {
     calendar()->setDate(d->m_date, eraName, yearInEra, month, day);
     return isValid();
 }
 
 bool KLocalizedDate::setDate(KLocale::WeekNumberSystem weekNumberSystem, int year, int isoWeekNumber, int dayOfIsoWeek)
 {
     Q_UNUSED(weekNumberSystem); // Only support ISO Week at the moment
     calendar()->setDateIsoWeek(d->m_date, year, isoWeekNumber, dayOfIsoWeek);
     return isValid();
 }
 
 bool KLocalizedDate::setCurrentDate()
 {
     d->m_date = QDate::currentDate();
     return isValid();
 }
 
 /*****************************************************************************
  *
  *                        Static Date Creation Section
  *
  *****************************************************************************/
 
 KLocalizedDate KLocalizedDate::currentDate()
 {
     return KLocalizedDate(QDate::currentDate());
 }
 
 KLocalizedDate KLocalizedDate::fromDate(const QDate &date)
 {
     return KLocalizedDate(date);
 }
 
 KLocalizedDate KLocalizedDate::fromJulianDay(int jd)
 {
     return KLocalizedDate(QDate::fromJulianDay(jd));
 }
 
 /*****************************************************************************
  *
  *                             Date Componant Section
  *
  *****************************************************************************/
 
 int KLocalizedDate::toJulianDay() const
 {
     return d->m_date.toJulianDay();
 }
 
 QDate KLocalizedDate::date() const
 {
     return d->m_date;
 }
 
 void KLocalizedDate::getDate(int *year, int *month, int *day) const
 {
     calendar()->getDate(date(), year, month, day);
 }
 
 int KLocalizedDate::year() const
 {
     return calendar()->year(date());
 }
 
 int KLocalizedDate::month() const
 {
     return calendar()->month(date());
 }
 
 int KLocalizedDate::day() const
 {
     return calendar()->day(date());
 }
 
 QString KLocalizedDate::eraName() const
 {
     return formatDate(KLocale::EraName);
 }
 
 QString KLocalizedDate::eraYear() const
 {
     return formatDate(KLocale::EraYear);
 }
 
 int KLocalizedDate::yearInEra() const
 {
     return calendar()->yearInEra(date());
 }
 
 int KLocalizedDate::dayOfYear() const
 {
     return calendar()->dayOfYear(date());
 }
 
 int KLocalizedDate::dayOfWeek() const
 {
     return calendar()->dayOfWeek(date());
 }
 
 int KLocalizedDate::week(int *yearNum) const
 {
     return calendar()->week(date(), yearNum);
 }
 
 int KLocalizedDate::week(KLocale::WeekNumberSystem weekNumberSystem, int *yearNum) const
 {
     return calendar()->week(date(), weekNumberSystem, yearNum);
 }
 
 int KLocalizedDate::monthsInYear() const
 {
     return calendar()->monthsInYear(date());
 }
 
 int KLocalizedDate::weeksInYear() const
 {
     return calendar()->weeksInYear(date());
 }
 
 int KLocalizedDate::weeksInYear(KLocale::WeekNumberSystem weekNumberSystem) const
 {
     return calendar()->weeksInYear(date(), weekNumberSystem);
 }
 
 int KLocalizedDate::daysInYear() const
 {
     return calendar()->daysInYear(date());
 }
 
 int KLocalizedDate::daysInMonth() const
 {
     return calendar()->daysInMonth(date());
 }
 
 int KLocalizedDate::daysInWeek() const
 {
     return calendar()->daysInWeek(date());
 }
 
 bool KLocalizedDate::isLeapYear() const
 {
     return calendar()->isLeapYear(date());
 }
 
 /*****************************************************************************
  *
  *                             Date Formatting Section
  *
  *****************************************************************************/
 
 QString KLocalizedDate::formatDate(KLocale::DateFormat toFormat) const
 {
     return calendar()->formatDate(date(), toFormat);
 }
 
 QString KLocalizedDate::formatDate(const QString &toFormat, KLocale::DateTimeFormatStandard formatStandard) const
 {
     return calendar()->formatDate(date(), toFormat, formatStandard);
 }
 
 QString KLocalizedDate::formatDate(KLocale::DateTimeComponent component,
                                    KLocale::DateTimeComponentFormat format,
                                    KLocale::WeekNumberSystem weekNumberSystem) const
 {
     return calendar()->formatDate(date(), component, format, weekNumberSystem);
 }
 
 /*****************************************************************************
  *
  *                             Date Parsing Section
  *
  *****************************************************************************/
 
 KLocalizedDate KLocalizedDate::readDate(const QString &dateString,
                                         KLocale::DateTimeParseMode parseMode,
                                         const KCalendarSystem *calendar)
 {
     Q_UNUSED(parseMode);
     if (!calendar) {
         calendar = KLocale::global()->calendar();
     }
     return KLocalizedDate(calendar->readDate(dateString));
 }
 
 KLocalizedDate KLocalizedDate::readDate(const QString &dateString,
                                         KLocale::ReadDateFlags formatFlags,
                                         KLocale::DateTimeParseMode parseMode,
                                         const KCalendarSystem *calendar)
 {
     Q_UNUSED(parseMode);
     if (!calendar) {
         calendar = KLocale::global()->calendar();
     }
     return KLocalizedDate(calendar->readDate(dateString, formatFlags));
 }
 
 KLocalizedDate KLocalizedDate::readDate(const QString &dateString,
                                         const QString &dateFormat,
                                         KLocale::DateTimeParseMode parseMode,
                                         KLocale::DateTimeFormatStandard formatStandard,
                                         const KCalendarSystem *calendar)
 {
     Q_UNUSED(parseMode);
     if (!calendar) {
         calendar = KLocale::global()->calendar();
     }
     return KLocalizedDate(calendar->readDate(dateString, dateFormat, nullptr, formatStandard));
 }
 
 /*****************************************************************************
  *
  *                             Date Maths Section
  *
  *****************************************************************************/
 
 KLocalizedDate KLocalizedDate::addYears(int years) const
 {
     KLocalizedDate newDate;
     newDate = *this;
     newDate.setDate(calendar()->addYears(date(), years));
     return newDate;
 }
 
 bool KLocalizedDate::addYearsTo(int years)
 {
     d->m_date = calendar()->addYears(date(), years);
     return isValid();
 }
 
 KLocalizedDate KLocalizedDate::addMonths(int months) const
 {
     KLocalizedDate newDate(*this);
     newDate.setDate(calendar()->addMonths(date(), months));
     return newDate;
 }
 
 bool KLocalizedDate::addMonthsTo(int months)
 {
     d->m_date = calendar()->addMonths(date(), months);
     return isValid();
 }
 
 KLocalizedDate KLocalizedDate::addDays(int days) const
 {
     KLocalizedDate newDate(*this);
     newDate.setDate(calendar()->addDays(date(), days));
     return newDate;
 }
 
 bool KLocalizedDate::addDaysTo(int days)
 {
     d->m_date = calendar()->addDays(date(), days);
     return isValid();
 }
 
 void KLocalizedDate::dateDifference(const KLocalizedDate &toDate,
                                     int *yearsDiff, int *monthsDiff, int *daysDiff, int *direction) const
 {
     dateDifference(toDate.date(), yearsDiff, monthsDiff, daysDiff, direction);
 }
 
 void KLocalizedDate::dateDifference(const QDate &toDate,
                                     int *yearsDiff, int *monthsDiff, int *daysDiff, int *direction) const
 {
     calendar()->dateDifference(date(), toDate, yearsDiff, monthsDiff, daysDiff, direction);
 }
 
 int KLocalizedDate::yearsDifference(const KLocalizedDate &toDate) const
 {
     return yearsDifference(toDate.date());
 }
 
 int KLocalizedDate::yearsDifference(const QDate &toDate) const
 {
     return calendar()->yearsDifference(date(), toDate);
 }
 
 int KLocalizedDate::monthsDifference(const KLocalizedDate &toDate) const
 {
     return monthsDifference(toDate.date());
 }
 
 int KLocalizedDate::monthsDifference(const QDate &toDate) const
 {
     return calendar()->monthsDifference(date(), toDate);
 }
 
 int KLocalizedDate::daysDifference(const KLocalizedDate &toDate) const
 {
     return daysDifference(toDate.date());
 }
 
 int KLocalizedDate::daysDifference(const QDate &toDate) const
 {
     return calendar()->daysDifference(date(), toDate);
 }
 
 KLocalizedDate KLocalizedDate::firstDayOfYear() const
 {
     KLocalizedDate newDate(*this);
     newDate.setDate(calendar()->firstDayOfYear(date()));
     return newDate;
 }
 
 KLocalizedDate KLocalizedDate::lastDayOfYear() const
 {
     KLocalizedDate newDate(*this);
     newDate.setDate(calendar()->lastDayOfYear(date()));
     return newDate;
 }
 
 KLocalizedDate KLocalizedDate::firstDayOfMonth() const
 {
     KLocalizedDate newDate(*this);
     newDate.setDate(calendar()->firstDayOfMonth(date()));
     return newDate;
 }
 
 KLocalizedDate KLocalizedDate::lastDayOfMonth() const
 {
     KLocalizedDate newDate(*this);
     newDate.setDate(calendar()->lastDayOfMonth(date()));
     return newDate;
 }
 
 /*****************************************************************************
  *
  *                             Date Operators Section
  *
  *****************************************************************************/
 
 bool KLocalizedDate::operator==(const KLocalizedDate &rhs) const
 {
     return (date() == rhs.date());
 }
 
 bool KLocalizedDate::operator==(const QDate &rhs) const
 {
     return (date() == rhs);
 }
 
 bool KLocalizedDate::operator!=(const KLocalizedDate &rhs) const
 {
     return (date() != rhs.date());
 }
 
 bool KLocalizedDate::operator!=(const QDate &rhs) const
 {
     return (date() != rhs);
 }
 
 bool KLocalizedDate::operator<(const KLocalizedDate &rhs) const
 {
     return (date() < rhs.date());
 }
 
 bool KLocalizedDate::operator<(const QDate &rhs) const
 {
     return (date() < rhs);
 }
 
 bool KLocalizedDate::operator<=(const KLocalizedDate &rhs) const
 {
     return (d->m_date <= rhs.date());
 }
 
 bool KLocalizedDate::operator<=(const QDate &rhs) const
 {
     return (date() <= rhs);
 }
 
 bool KLocalizedDate::operator>(const KLocalizedDate &rhs) const
 {
     return (date() > rhs.date());
 }
 
 bool KLocalizedDate::operator>(const QDate &rhs) const
 {
     return (date() > rhs);
 }
 
 bool KLocalizedDate::operator>=(const KLocalizedDate &rhs) const
 {
     return (date() >= rhs.date());
 }
 
 bool KLocalizedDate::operator>=(const QDate &rhs) const
 {
     return (date() >= rhs);
 }
 
 QDataStream &operator<<(QDataStream &out, const KLocalizedDate &date)
 {
     return out << (quint32)(date.toJulianDay()) << date.calendar()->calendarSystem();
 }
 
 QDataStream &operator>>(QDataStream &in, KLocalizedDate &date)
 {
     quint32 jd;
     int calendarSystem;
     in >> jd >> calendarSystem;
     date.setDate(QDate::fromJulianDay(jd));
     date.setCalendarSystem((KLocale::CalendarSystem)calendarSystem);
     return in;
 }
 
 QDebug operator<<(QDebug dbg, const KLocalizedDate &date)
 {
     if (date.calendar()->calendarSystem() == KLocale::QDateCalendar) {
         dbg.nospace() << "KLocalizedDate(" << date.formatDate(KLocale::IsoDate) << ", "
                       << date.calendar()->calendarLabel() << ')';
     } else {
         dbg.nospace() << "KLocalizedDate(" << date.formatDate(KLocale::IsoDate) << ", "
                       << date.calendar()->calendarLabel() << ')'
                       << " = QDate(" << date.date().toString(Qt::ISODate) << ')';
     }
     return dbg.space();
 }