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Diffstat (limited to 'src/corelib/time/qgregoriancalendar_p.h')
-rw-r--r-- | src/corelib/time/qgregoriancalendar_p.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/corelib/time/qgregoriancalendar_p.h b/src/corelib/time/qgregoriancalendar_p.h new file mode 100644 index 0000000000..191f9c127b --- /dev/null +++ b/src/corelib/time/qgregoriancalendar_p.h @@ -0,0 +1,90 @@ +/**************************************************************************** +** +** Copyright (C) 2019 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGREGORIAN_CALENDAR_P_H +#define QGREGORIAN_CALENDAR_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of calendar implementations. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qromancalendar_p.h" + +QT_BEGIN_NAMESPACE + +class Q_CORE_EXPORT QGregorianCalendar : public QRomanCalendar +{ + // TODO: provide static methods, called by the overrides, that can be called + // directly by QDate to optimize various parts. +public: + QGregorianCalendar(); + // CAlendar properties: + QString name() const override; + QCalendar::System calendarSystem() const override; + // Date queries: + bool isLeapYear(int year) const override; + // Julian Day conversions: + bool dateToJulianDay(int year, int month, int day, qint64 *jd) const override; + QCalendar::YearMonthDay julianDayToDate(qint64 jd) const override; + + // Names of months (implemented in qlocale.cpp): + QString monthName(const QLocale &locale, int month, int year, + QLocale::FormatType format) const override; + QString standaloneMonthName(const QLocale &locale, int month, int year, + QLocale::FormatType format) const override; + + // Static optimized versions for the benefit of QDate: + static int weekDayOfJulian(qint64 jd); + static bool leapTest(int year); + static int monthLength(int month, int year); + static bool validParts(int year, int month, int day); + static QCalendar::YearMonthDay partsFromJulian(qint64 jd); + static bool julianFromParts(int year, int month, int day, qint64 *jd); +}; + +QT_END_NAMESPACE + +#endif // QGREGORIAN_CALENDAR_P_H |