/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

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** This file is part of the QtCore module of the Qt Toolkit.

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** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

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** $QT_END_LICENSE$

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****************************************************************************/

#ifndef QDATETIME_H

#define QDATETIME_H

#include <QtCore/qstring.h>

#include <QtCore/qnamespace.h>

#include <QtCore/qsharedpointer.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Core)

class Q_CORE_EXPORT QDate

{

public:

    enum MonthNameType {

        DateFormat = 0,

        StandaloneFormat

    };

public:

    QDate() { jd = 0; }

    QDate(int y, int m, int d);

    bool isNull() const { return jd == 0; }

    bool isValid() const;

    int year() const;

    int month() const;

    int day() const;

    int dayOfWeek() const;

    int dayOfYear() const;

    int daysInMonth() const;

    int daysInYear() const;

    int weekNumber(int *yearNum = 0) const;

#ifndef QT_NO_TEXTDATE

#ifdef QT3_SUPPORT

    static QT3_SUPPORT QString monthName(int month) { return shortMonthName(month); }

    static QT3_SUPPORT QString dayName(int weekday) { return shortDayName(weekday); }

#endif

    // ### Qt 5: merge these functions.

    static QString shortMonthName(int month);

    static QString shortMonthName(int month, MonthNameType type);

    static QString shortDayName(int weekday);

    static QString shortDayName(int weekday, MonthNameType type);

    static QString longMonthName(int month);

    static QString longMonthName(int month, MonthNameType type);

    static QString longDayName(int weekday);

    static QString longDayName(int weekday, MonthNameType type);

#endif // QT_NO_TEXTDATE

#ifndef QT_NO_DATESTRING

    QString toString(Qt::DateFormat f = Qt::TextDate) const;

    QString toString(const QString &format) const;

#endif

    bool setYMD(int y, int m, int d);

    bool setDate(int year, int month, int day);

    void getDate(int *year, int *month, int *day);

    QDate addDays(int days) const;

    QDate addMonths(int months) const;

    QDate addYears(int years) const;

    int daysTo(const QDate &) const;

    bool operator==(const QDate &other) const { return jd == other.jd; }

    bool operator!=(const QDate &other) const { return jd != other.jd; }

    bool operator<(const QDate &other) const { return jd < other.jd; }

    bool operator<=(const QDate &other) const { return jd <= other.jd; }

    bool operator>(const QDate &other) const { return jd > other.jd; }

    bool operator>=(const QDate &other) const { return jd >= other.jd; }

    static QDate currentDate();

#ifndef QT_NO_DATESTRING

    static QDate fromString(const QString &s, Qt::DateFormat f = Qt::TextDate);

    static QDate fromString(const QString &s, const QString &format);

#endif

    static bool isValid(int y, int m, int d);

    static bool isLeapYear(int year);

#ifdef QT3_SUPPORT

    inline static QT3_SUPPORT bool leapYear(int year) { return isLeapYear(year); }

#endif

    // ### Qt 5: remove these two functions

    static uint gregorianToJulian(int y, int m, int d);

    static void julianToGregorian(uint jd, int &y, int &m, int &d);

#ifdef QT3_SUPPORT

    static QT3_SUPPORT QDate currentDate(Qt::TimeSpec spec);

#endif

    static inline QDate fromJulianDay(int jd) { QDate d; d.jd = jd; return d; }

    inline int toJulianDay() const { return jd; }

private:

    uint jd;

    friend class QDateTime;

    friend class QDateTimePrivate;

#ifndef QT_NO_DATASTREAM

    friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDate &);

    friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDate &);

#endif

};

Q_DECLARE_TYPEINFO(QDate, Q_MOVABLE_TYPE);

class Q_CORE_EXPORT QTime

{

public:

    QTime(): mds(NullTime)

#if defined(Q_OS_WINCE)

        , startTick(NullTime)

#endif

    {}

    QTime(int h, int m, int s = 0, int ms = 0);

    bool isNull() const { return mds == NullTime; }

    bool isValid() const;

    int hour() const;

    int minute() const;

    int second() const;

    int msec() const;

#ifndef QT_NO_DATESTRING

    QString toString(Qt::DateFormat f = Qt::TextDate) const;

    QString toString(const QString &format) const;

#endif

    bool setHMS(int h, int m, int s, int ms = 0);

    QTime addSecs(int secs) const;

    int secsTo(const QTime &) const;

    QTime addMSecs(int ms) const;

    int msecsTo(const QTime &) const;

    bool operator==(const QTime &other) const { return mds == other.mds; }

    bool operator!=(const QTime &other) const { return mds != other.mds; }

    bool operator<(const QTime &other) const { return mds < other.mds; }

    bool operator<=(const QTime &other) const { return mds <= other.mds; }

    bool operator>(const QTime &other) const { return mds > other.mds; }

    bool operator>=(const QTime &other) const { return mds >= other.mds; }

    static QTime currentTime();

#ifndef QT_NO_DATESTRING

    static QTime fromString(const QString &s, Qt::DateFormat f = Qt::TextDate);

    static QTime fromString(const QString &s, const QString &format);

#endif

    static bool isValid(int h, int m, int s, int ms = 0);

#ifdef QT3_SUPPORT

    static QT3_SUPPORT QTime currentTime(Qt::TimeSpec spec);

#endif

    void start();

    int restart();

    int elapsed() const;

private:

    enum TimeFlag { NullTime = -1 };

    inline int ds() const { return mds == -1 ? 0 : mds; }

    int mds;

#if defined(Q_OS_WINCE)

    int startTick;

#endif

    friend class QDateTime;

    friend class QDateTimePrivate;

#ifndef QT_NO_DATASTREAM

    friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QTime &);

    friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QTime &);

#endif

};

Q_DECLARE_TYPEINFO(QTime, Q_MOVABLE_TYPE);

class QDateTimePrivate;

class Q_CORE_EXPORT QDateTime

{

public:

    QDateTime();

    explicit QDateTime(const QDate &);

    QDateTime(const QDate &, const QTime &, Qt::TimeSpec spec = Qt::LocalTime);

    QDateTime(const QDateTime &other);

    ~QDateTime();

    QDateTime &operator=(const QDateTime &other);

    bool isNull() const;

    bool isValid() const;

    QDate date() const;

    QTime time() const;

    Qt::TimeSpec timeSpec() const;

    uint toTime_t() const;

    void setDate(const QDate &date);

    void setTime(const QTime &time);

    void setTimeSpec(Qt::TimeSpec spec);

    void setTime_t(uint secsSince1Jan1970UTC);

#ifndef QT_NO_DATESTRING

    QString toString(Qt::DateFormat f = Qt::TextDate) const;

    QString toString(const QString &format) const;

#endif

    QDateTime addDays(int days) const;

    QDateTime addMonths(int months) const;

    QDateTime addYears(int years) const;

    QDateTime addSecs(int secs) const;

    QDateTime addMSecs(qint64 msecs) const;

    QDateTime toTimeSpec(Qt::TimeSpec spec) const;

    inline QDateTime toLocalTime() const { return toTimeSpec(Qt::LocalTime); }

    inline QDateTime toUTC() const { return toTimeSpec(Qt::UTC); }

    int daysTo(const QDateTime &) const;

    int secsTo(const QDateTime &) const;

    bool operator==(const QDateTime &other) const;

    inline bool operator!=(const QDateTime &other) const { return !(*this == other); }

    bool operator<(const QDateTime &other) const;

    inline bool operator<=(const QDateTime &other) const { return !(other < *this); }

    inline bool operator>(const QDateTime &other) const { return other < *this; }

    inline bool operator>=(const QDateTime &other) const { return !(*this < other); }

    void setUtcOffset(int seconds);

    int utcOffset() const;

    static QDateTime currentDateTime();

#ifndef QT_NO_DATESTRING

    static QDateTime fromString(const QString &s, Qt::DateFormat f = Qt::TextDate);

    static QDateTime fromString(const QString &s, const QString &format);

#endif

    static QDateTime fromTime_t(uint secsSince1Jan1970UTC);

#ifdef QT3_SUPPORT

    inline QT3_SUPPORT void setTime_t(uint secsSince1Jan1970UTC, Qt::TimeSpec spec) {

        setTime_t(secsSince1Jan1970UTC);

        if (spec == Qt::UTC)

            *this = toUTC();

    }

    static inline QT3_SUPPORT QDateTime currentDateTime(Qt::TimeSpec spec) {

        if (spec == Qt::LocalTime)

            return currentDateTime();

        else

            return currentDateTime().toUTC();

    }

#endif

private:

    friend class QDateTimePrivate;

    void detach();

    QExplicitlySharedDataPointer<QDateTimePrivate> d;

#ifndef QT_NO_DATASTREAM

    friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDateTime &);

    friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDateTime &);

#endif

};

Q_DECLARE_TYPEINFO(QDateTime, Q_MOVABLE_TYPE);

#ifdef QT3_SUPPORT

inline QDate QDate::currentDate(Qt::TimeSpec spec)

{

    if (spec == Qt::LocalTime)

        return currentDate();

    else

        return QDateTime::currentDateTime().toUTC().date();

}

inline QTime QTime::currentTime(Qt::TimeSpec spec)

{

    if (spec == Qt::LocalTime)

        return currentTime();

    else

        return QDateTime::currentDateTime().toUTC().time();

}

#endif

#ifndef QT_NO_DATASTREAM

Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDate &);

Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDate &);

Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QTime &);

Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QTime &);

Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDateTime &);

Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDateTime &);

#endif // QT_NO_DATASTREAM

#if !defined(QT_NO_DEBUG_STREAM) && !defined(QT_NO_DATESTRING)

Q_CORE_EXPORT QDebug operator<<(QDebug, const QDate &);

Q_CORE_EXPORT QDebug operator<<(QDebug, const QTime &);

Q_CORE_EXPORT QDebug operator<<(QDebug, const QDateTime &);

#endif

QT_END_NAMESPACE

QT_END_HEADER

#endif // QDATETIME_H