File indexing completed on 2025-01-19 04:46:47 

0001 /*
0002   This file is part of the kholidays library.
0003 
0004   SPDX-FileCopyrightText: 2014 John Layt <john@layt.net>
0005 
0006   SPDX-License-Identifier: LGPL-2.0-or-later
0007 */
0008 
0009 #pragma once
0010 
0011 #include <QDate>
0012 #include <QSharedPointer>
0013 
0014 class QCalendarSystemPrivate;
0015 
0016 class QCalendarSystem
0017 {
0018 public:
0019     enum CalendarSystem {
0020         DefaultCalendar = 0,
0021         GregorianCalendar = 1,
0022         ChineseCalendar = 2,
0023         CopticCalendar = 3,
0024         EthiopicCalendar = 4,
0025         EthiopicAmeteAlemCalendar = 5,
0026         HebrewCalendar = 6,
0027         IndianNationalCalendar = 7,
0028         IslamicCalendar = 8,
0029         IslamicCivilCalendar = 9,
0030         ISO8601Calendar = 10,
0031         JapaneseCalendar = 11,
0032         JulianCalendar = 12,
0033         PersianCalendar = 13,
0034         ROCCalendar = 14,
0035         ThaiCalendar = 15,
0036         LastCalendar = ThaiCalendar,
0037     };
0038 
0039     explicit QCalendarSystem(QCalendarSystem::CalendarSystem calendar = QCalendarSystem::DefaultCalendar);
0040     ~QCalendarSystem();
0041 
0042     QCalendarSystem &operator=(const QCalendarSystem &other);
0043 
0044     QCalendarSystem::CalendarSystem calendarSystem() const;
0045 
0046     QDate epoch() const;
0047     QDate earliestValidDate() const;
0048     QDate latestValidDate() const;
0049     int maximumMonthsInYear() const;
0050     int maximumDaysInYear() const;
0051     int maximumDaysInMonth() const;
0052 
0053     bool isValid(const QDate &date) const;
0054     bool isValid(int year, int month, int day) const;
0055     bool isValid(int year, int dayOfYear) const;
0056 
0057     QDate date(int year, int month, int day) const;
0058     QDate date(int year, int dayOfYear) const;
0059 
0060     void getDate(const QDate &date, int *year, int *month, int *day) const;
0061 
0062     int year(const QDate &date) const;
0063     int month(const QDate &date) const;
0064     int day(const QDate &date) const;
0065 
0066     int quarter(const QDate &date) const;
0067     int quarter(int year, int month, int day) const;
0068 
0069     int dayOfYear(const QDate &date) const;
0070     int dayOfYear(int year, int month, int day) const;
0071 
0072     int dayOfWeek(const QDate &date) const;
0073     int dayOfWeek(int year, int month, int day) const;
0074 
0075     int weekNumber(const QDate &date, int *yearNum = nullptr) const;
0076     int weekNumber(int year, int month, int day, int *yearNum = nullptr) const;
0077 
0078     int monthsInYear(const QDate &date) const;
0079     int monthsInYear(int year) const;
0080 
0081     int weeksInYear(const QDate &date) const;
0082     int weeksInYear(int year) const;
0083 
0084     int daysInYear(const QDate &date) const;
0085     int daysInYear(int year) const;
0086 
0087     int daysInMonth(const QDate &date) const;
0088     int daysInMonth(int year, int month) const;
0089 
0090     int daysInWeek() const;
0091 
0092     bool isLeapYear(const QDate &date) const;
0093     bool isLeapYear(int year) const;
0094 
0095     QDate addYears(const QDate &date, int years) const;
0096     QDate addMonths(const QDate &date, int months) const;
0097     QDate addDays(const QDate &date, int days) const;
0098 
0099     int yearsDifference(const QDate &fromDate, const QDate &toDate) const;
0100     int monthsDifference(const QDate &fromDate, const QDate &toDate) const;
0101     qint64 daysDifference(const QDate &fromDate, const QDate &toDate) const;
0102 
0103     void dateDifference(const QDate &fromDate, const QDate &toDate, int *years, int *months, int *days, int *direction) const;
0104 
0105     QDate firstDayOfYear(const QDate &date) const;
0106     QDate firstDayOfYear(int year) const;
0107     QDate lastDayOfYear(const QDate &date) const;
0108     QDate lastDayOfYear(int year) const;
0109 
0110     QDate firstDayOfMonth(const QDate &date) const;
0111     QDate firstDayOfMonth(int year, int month) const;
0112     QDate lastDayOfMonth(const QDate &date) const;
0113     QDate lastDayOfMonth(int year, int month) const;
0114 
0115 private:
0116     QSharedDataPointer<QCalendarSystemPrivate> d;
0117 };