qromancalendar.cpp

Go to the documentation of this file.

// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qglobal.h"
#include "qromancalendar_p.h"
#include "qromancalendar_data_p.h"
 
QT_BEGIN_NAMESPACE
 
/*!
    \since 5.14
    \internal
 
    \class QRomanCalendar
    \inmodule QtCore
    \brief The QRomanCalendar class is a shared base for calendars based on the
    ancient Roman calendar.
 
    Calendars based on the ancient Roman calendar have several common properties:
    they have the same names for months, the month lengths depend in a common
    way on whether the year is a leap year. They differ in how they determine
    which years are leap years.
 
    \sa QGregorianCalendar, QJulianCalendar, QMilankovicCalendar
*/
 
int QRomanCalendar::daysInMonth(int month, int year) const
{
    if (!year || month < 1 || month > 12)
        return 0;
 
    if (month == 2)
        return year == QCalendar::Unspecified || isLeapYear(year) ? 29 : 28;
 
    // Long if odd up to July = 7, or if even from 8 = August onwards:
    return 30 | ((month & 1) ^ (month >> 3));
}
 
int QRomanCalendar::minimumDaysInMonth() const
{
    return 28;
}
 
bool QRomanCalendar::isLunar() const
{
    return false;
}
 
bool QRomanCalendar::isLuniSolar() const
{
    return false;
}
 
bool QRomanCalendar::isSolar() const
{
    return true;
}
 
const QCalendarLocale *QRomanCalendar::localeMonthIndexData() const
{
    return QtPrivate::Roman::locale_data;
}
 
const char16_t *QRomanCalendar::localeMonthData() const
{
    return QtPrivate::Roman::months_data;
}
 
QT_END_NAMESPACE