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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
#ifndef _DATETIME_HXX
#define _DATETIME_HXX

#include "tools/toolsdllapi.h"
#include <tools/solar.h>
#include <tools/date.hxx>
#include <tools/time.hxx>

class TOOLS_DLLPUBLIC DateTime : public Date, public Time
{
public:
    enum DateTimeInitSystem
    {
        SYSTEM
    };

    // TODO temporary until all uses are inspected and resolved
    enum DateTimeInitEmpty
    {
        EMPTY
    };

                    DateTime( DateTimeInitEmpty ) : Date( Date::EMPTY ), Time( Time::EMPTY ) {}
                    DateTime( DateTimeInitSystem ) : Date( Date::SYSTEM ), Time( Time::SYSTEM ) {}
                    DateTime( const DateTime& rDateTime ) :
                        Date( rDateTime ), Time( rDateTime ) {}
                    DateTime( const Date& rDate ) : Date( rDate ), Time(0) {}
                    DateTime( const Time& rTime ) : Date(0), Time( rTime ) {}
                    DateTime( const Date& rDate, const Time& rTime ) :
                        Date( rDate ), Time( rTime ) {}

    sal_Bool        IsBetween( const DateTime& rFrom,
                               const DateTime& rTo ) const;

    sal_Bool        IsEqualIgnore100Sec( const DateTime& rDateTime ) const
                    {
                        if ( Date::operator!=( rDateTime ) )
                            return sal_False;
                        return Time::IsEqualIgnore100Sec( rDateTime );
                    }

    sal_Bool        operator ==( const DateTime& rDateTime ) const
                        { return (Date::operator==( rDateTime ) &&
                                  Time::operator==( rDateTime )); }
    sal_Bool        operator !=( const DateTime& rDateTime ) const
                        { return (Date::operator!=( rDateTime ) ||
                                  Time::operator!=( rDateTime )); }
    sal_Bool        operator  >( const DateTime& rDateTime ) const;
    sal_Bool        operator  <( const DateTime& rDateTime ) const;
    sal_Bool        operator >=( const DateTime& rDateTime ) const;
    sal_Bool        operator <=( const DateTime& rDateTime ) const;

    long            GetSecFromDateTime( const Date& rDate ) const;

    void            ConvertToUTC()       { *this -= Time::GetUTCOffset(); }
    void            ConvertToLocalTime() { *this += Time::GetUTCOffset(); }

    DateTime&       operator +=( long nDays )
                        { Date::operator+=( nDays ); return *this; }
    DateTime&       operator -=( long nDays )
                        { Date::operator-=( nDays ); return *this; }
    DateTime&       operator +=( double fTimeInDays );
    DateTime&       operator -=( double fTimeInDays )
                        { return operator+=( -fTimeInDays ); }
    DateTime&       operator +=( const Time& rTime );
    DateTime&       operator -=( const Time& rTime );

    TOOLS_DLLPUBLIC friend DateTime operator +( const DateTime& rDateTime, long nDays );
    TOOLS_DLLPUBLIC friend DateTime operator -( const DateTime& rDateTime, long nDays );
    TOOLS_DLLPUBLIC friend DateTime operator +( const DateTime& rDateTime, double fTimeInDays );
    TOOLS_DLLPUBLIC friend DateTime operator -( const DateTime& rDateTime, double fTimeInDays )
                        { return operator+( rDateTime, -fTimeInDays ); }
    TOOLS_DLLPUBLIC friend DateTime operator +( const DateTime& rDateTime, const Time& rTime );
    TOOLS_DLLPUBLIC friend DateTime operator -( const DateTime& rDateTime, const Time& rTime );
    TOOLS_DLLPUBLIC friend double   operator -( const DateTime& rDateTime1, const DateTime& rDateTime2 );
    TOOLS_DLLPUBLIC friend long     operator -( const DateTime& rDateTime, const Date& rDate )
                        { return (const Date&) rDateTime - rDate; }

    DateTime&       operator =( const DateTime& rDateTime );

    void            GetWin32FileDateTime( sal_uInt32 & rLower, sal_uInt32 & rUpper );
    static DateTime CreateFromWin32FileDateTime( const sal_uInt32 & rLower, const sal_uInt32 & rUpper );
};

inline DateTime& DateTime::operator =( const DateTime& rDateTime )
{
    Date::operator=( rDateTime );
    Time::operator=( rDateTime );
    return *this;
}

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */