/* This file is part of the KDE project
   Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
   Copyright 2002, 2003 David Faure <faure@kde.org>
   Copyright 2003 Nicolas GOUTTE <goutte@kde.org>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/

#ifndef koGlobal_h
#define koGlobal_h

#include <qstringlist.h>
#include <qfont.h>
#include <qmap.h>
class KConfig;

#include <koffice_export.h>
class KOFFICECORE_EXPORT KoGlobal
{
public:
    /// For KoApplication
    static void initialize()  {
        (void)self(); // I don't want to make KGlobal instances public, so self() is private
    }
    /**
     * Return the default font for KOffice programs.
     * This is (currently) the same as the KDE-global default font,
     * except that it is guaranteed to have a point size set,
     * never a pixel size (see @ref QFont).
     */
    static QFont defaultFont()  {
        return self()->_defaultFont();
    }

    /**
     * @return the global KConfig object around kofficerc.
     * kofficerc is used for KOffice-wide settings, from totally unrelated classes,
     * so this is the centralization of the KConfig object so that the file is
     * parsed only once
     */
    static KConfig* kofficeConfig() {
        return self()->_kofficeConfig();
    }

    static int dpiX() {
        return self()->m_dpiX;
    }
    static int dpiY() {
        return self()->m_dpiY;
    }
    /// @internal, for KoApplication
    static void setDPI( int x, int y );

    /// Return the list of available languages, in their displayable form
    /// (translated names)
    static QStringList listOfLanguages() {
        return self()->_listOfLanguages();
    }
    /// Return the list of available languages, in their internal form
    /// e.g. "fr" or "en_US", here called "tag"
    static QStringList listTagOfLanguages() { // TODO rename to listOfLanguageTags
        return self()->_listOfLanguageTags();
    }
    /// For a given language display name, return its tag
    static QString tagOfLanguage( const QString & _lang );
    /// For a given language tag, return its display name
    static QString languageFromTag( const QString &_lang );

    ~KoGlobal();

private:
    static KoGlobal* self();
    KoGlobal();
    QFont _defaultFont();
    QStringList _listOfLanguages();
    QStringList _listOfLanguageTags();
    KConfig* _kofficeConfig();
    void createListOfLanguages();

    int m_pointSize;
    typedef QMap<QString, QString> LanguageMap;
    LanguageMap m_langMap; // display-name -> language tag
    KConfig* m_kofficeConfig;
    int m_dpiX;
    int m_dpiY;
    // No BC problem here, constructor is private, feel free to add members

    // Singleton pattern. Maybe this should even be refcounted, so
    // that it gets cleaned up when closing all koffice parts in e.g. konqueror?
    static KoGlobal* s_global;
    friend class this_is_a_singleton; // work around gcc warning
};

#endif // koGlobal
