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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: syslocaleoptions.hxx,v $
 * $Revision: 1.3 $
 *
 * 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 INCLUDED_SVTOOLS_SYSLOCALEOPTIONS_HXX
#define INCLUDED_SVTOOLS_SYSLOCALEOPTIONS_HXX

#include "unotools/unotoolsdllapi.h"
#include <sal/types.h>
#include <rtl/ustring.hxx>
#include <tools/solar.h>
#include <tools/link.hxx>
#include <i18npool/lang.h>
#include <tools/string.hxx>
#include <unotools/options.hxx>

// bits for broadcasting hints of changes in a SfxSimpleHint, may be combined
const ULONG SYSLOCALEOPTIONS_HINT_LOCALE    = 0x00000001;
const ULONG SYSLOCALEOPTIONS_HINT_CURRENCY  = 0x00000002;
const ULONG SYSLOCALEOPTIONS_HINT_UILOCALE  = 0x00000004;
const ULONG SYSLOCALEOPTIONS_HINT_DECSEP    = 0x00000008;

class SvtSysLocaleOptions_Impl;
class SvtListener;
namespace osl { class Mutex; }

class UNOTOOLS_DLLPUBLIC SvtSysLocaleOptions: public utl::detail::Options
{
    static  SvtSysLocaleOptions_Impl*   pOptions;
    static  sal_Int32                   nRefCount;

    UNOTOOLS_DLLPRIVATE static  ::osl::Mutex&       GetMutex();
    virtual void ConfigurationChanged( utl::ConfigurationBroadcaster* p, sal_uInt32 nHint );

public:

    enum EOption
    {
        E_LOCALE,
        E_UILOCALE,
        E_CURRENCY
    };
                                SvtSysLocaleOptions();
                                virtual ~SvtSysLocaleOptions();

    // ConfigItem methods

            sal_Bool            IsModified();
            void                Commit();

                                /** Add a listener to react on config changes
                                    which are broadcasted in a SfxSimpleHint
                                    @return
                                        <TRUE/> if added
                                        <FALSE/> if not added
                                 */

    /** Block broadcasts and accumulate hints. This may be useful if, for
        example, the locale and currency are changed and the currency was
        empty before, since changing the locale with an empty currency does
        also broadcast a change hint for the currency which would result in
        two currency changes broadcasted.

        @param bBlock
            <TRUE/>: broadcasts are blocked until reversed.
            <FALSE/>: broadcasts are not blocked anymore. Pending hints are
            broadcasted if no other instance blocks the broadcast.

        @ATTENTION
        All SvtSysLocaleOptions instances point to exactly one refcounted
        internal representation instance and broadcast blocks are counted.
        Thus if you issue a BlockBroadcasts(TRUE) you MUST issue a matching
        BlockBroadcasts(FALSE) or otherwise pending hints would never be
        broadcasted again.
     */
            void                BlockBroadcasts( BOOL bBlock );

    // config value access methods

    /// The config string may be empty to denote the SYSTEM locale
            const ::rtl::OUString&  GetLocaleConfigString() const;
            void                SetLocaleConfigString( const ::rtl::OUString& rStr );
            com::sun::star::lang::Locale GetLocale() const;
            com::sun::star::lang::Locale GetRealLocale() const;
            LanguageType        GetRealLanguage() const;

    /// The config string may be empty to denote the SYSTEM locale
            const ::rtl::OUString&  GetUILocaleConfigString() const;
            void                SetUILocaleConfigString( const ::rtl::OUString& rStr );
            com::sun::star::lang::Locale GetUILocale() const;
            com::sun::star::lang::Locale GetRealUILocale() const;
            LanguageType        GetRealUILanguage() const;

    /// The config string may be empty to denote the default currency of the locale
            const ::rtl::OUString&  GetCurrencyConfigString() const;
            void                SetCurrencyConfigString( const ::rtl::OUString& rStr );
    // determine whether the decimal separator defined in the keyboard layout is used
    // or the one approriate to the locale
            sal_Bool            IsDecimalSeparatorAsLocale() const;
            void                SetDecimalSeparatorAsLocale( sal_Bool bSet);

    // convenience methods

    /// Get currency abbreviation and locale from an USD-en-US or EUR-de-DE string
    static  void                GetCurrencyAbbrevAndLanguage(
                                    String& rAbbrev,
                                    LanguageType& eLang,
                                    const ::rtl::OUString& rConfigString );

    /// Create an USD-en-US or EUR-de-DE string
    static  ::rtl::OUString     CreateCurrencyConfigString(
                                    const String& rAbbrev,
                                    LanguageType eLang );

            void                GetCurrencyAbbrevAndLanguage(
                                        String& rAbbrev,
                                        LanguageType& eLang ) const
                                    {
                                        GetCurrencyAbbrevAndLanguage( rAbbrev,
                                            eLang, GetCurrencyConfigString() );
                                    }

            void                SetCurrencyAbbrevAndLanguage(
                                        const String& rAbbrev,
                                        LanguageType eLang )
                                    {
                                        SetCurrencyConfigString(
                                            CreateCurrencyConfigString(
                                            rAbbrev, eLang ) );
                                    }

    /** Set a link to a method to be called whenever the default currency
        changes. This can be only one method, and normally it is the static
        link method which calls SvNumberFormatter::SetDefaultSystemCurrency().
        This is needed because the number formatter isn't part of the svl light
        library, otherwise we could call SetDefaultSystemCurrency() directly.
     */
    static  void                SetCurrencyChangeLink( const Link& rLink );
    static  const Link&         GetCurrencyChangeLink();

    /** return the readonly state of the queried option. */
            sal_Bool            IsReadOnly( EOption eOption ) const;
};

#endif  // INCLUDED_SVTOOLS_SYSLOCALEOPTIONS_HXX