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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef _UNOTOOLS_CALENDARWRAPPER_HXX
#define _UNOTOOLS_CALENDARWRAPPER_HXX

#include <tools/datetime.hxx>
#include <tools/string.hxx>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/i18n/Calendar.hpp>
#include <com/sun/star/lang/Locale.hpp>
#include "unotools/unotoolsdllapi.h"

namespace com { namespace sun { namespace star {
    namespace lang {
        class XMultiServiceFactory;
    }
}}}

namespace com { namespace sun { namespace star {
    namespace i18n {
        class XExtendedCalendar;
    }
}}}


class UNOTOOLS_DLLPUBLIC CalendarWrapper
{
    ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > xSMgr;
    ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XExtendedCalendar >   xC;

            DateTime            aEpochStart;        // 1Jan1970

public:
                                CalendarWrapper(
                                    const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > & xSF
                                    );
                                ~CalendarWrapper();


    // wrapper implementations of XCalendar

    void loadDefaultCalendar( const ::com::sun::star::lang::Locale& rLocale );
    void loadCalendar( const ::rtl::OUString& rUniqueID, const ::com::sun::star::lang::Locale& rLocale );
    ::com::sun::star::i18n::Calendar getLoadedCalendar() const;
    ::com::sun::star::uno::Sequence< ::rtl::OUString > getAllCalendars( const ::com::sun::star::lang::Locale& rLocale ) const;
    ::rtl::OUString getUniqueID() const;
    /// set UTC date/time
    void setDateTime( double nTimeInDays );
    /// get UTC date/time
    double getDateTime() const;
    /// convenience method to set local date/time
    void setLocalDateTime( double nTimeInDays );
    /// convenience method to get local date/time
    double getLocalDateTime() const;

    // wrapper implementations of XCalendar

    void setValue( sal_Int16 nFieldIndex, sal_Int16 nValue );
    sal_Bool isValid() const;
    sal_Int16 getValue( sal_Int16 nFieldIndex ) const;
    void addValue( sal_Int16 nFieldIndex, sal_Int32 nAmount );
    sal_Int16 getFirstDayOfWeek() const;
    void setFirstDayOfWeek( sal_Int16 nDay );
    void setMinimumNumberOfDaysForFirstWeek( sal_Int16 nDays );
    sal_Int16 getMinimumNumberOfDaysForFirstWeek() const;
    sal_Int16 getNumberOfMonthsInYear() const;
    sal_Int16 getNumberOfDaysInWeek() const;
    ::com::sun::star::uno::Sequence< ::com::sun::star::i18n::CalendarItem > getMonths() const;
    ::com::sun::star::uno::Sequence< ::com::sun::star::i18n::CalendarItem > getDays() const;
    String getDisplayName( sal_Int16 nCalendarDisplayIndex, sal_Int16 nIdx, sal_Int16 nNameType ) const;

    /** Convenience method to get timezone offset in milliseconds, taking both
        fields ZONE_OFFSET and ZONE_OFFSET_SECOND_MILLIS into account. */
    sal_Int32 getZoneOffsetInMillis() const;
    /** Convenience method to get DST offset in milliseconds, taking both
        fields DST_OFFSET and DST_OFFSET_SECOND_MILLIS into account. */
    sal_Int32 getDSTOffsetInMillis() const;

    // wrapper implementations of XExtendedCalendar

    String getDisplayString( sal_Int32 nCalendarDisplayCode, sal_Int16 nNativeNumberMode ) const;


    // convenience methods

    /// get epoch start (should be 01Jan1970)
    inline  const DateTime&     getEpochStart() const
                                    { return aEpochStart; }

    /// set a local (!) Gregorian DateTime
    inline  void                setGregorianDateTime( const DateTime& rDateTime )
                                    { setLocalDateTime( rDateTime - aEpochStart ); }

    /// get the DateTime as a local (!) Gregorian DateTime
    inline  DateTime            getGregorianDateTime() const
                                    { return aEpochStart + getLocalDateTime(); }

private:

    /** get timezone or DST offset in milliseconds, fields are
        CalendarFieldIndex ZONE_OFFSET and ZONE_OFFSET_SECOND_MILLIS
        respectively DST_OFFSET and DST_OFFSET_SECOND_MILLIS.
     */
    sal_Int32 getCombinedOffsetInMillis( sal_Int16 nParentFieldIndex, sal_Int16 nChildFieldIndex ) const;
};

#endif