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// -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; -*-
/*
 *
 * Copyright (C)  2007  Zack Rusin <zack@kde.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301  USA
 */
#ifndef SONNET_SPELLER_H
#define SONNET_SPELLER_H

#include <QtCore/QStringList>
#include <QtCore/QString>

#include <kdecore_export.h>

class KConfig;

namespace Sonnet
{
    /**
     * Spell checker object.
     *
     * @short class used for actuall spell checking
     */
    class KDECORE_EXPORT Speller
    {
    public:
        Speller(const QString &lang=QString());
        ~Speller();

        Speller(const Speller &speller);
        Speller &operator=(const Speller &speller);

        /**
         * Returns true if the speller supports currently selected
         * language.
         */
        bool isValid() const;

        /**
         * Sets the language supported by this speller.
         */
        void setLanguage(const QString &lang);
        /**
         * Returns language supported by this speller.
         */
        QString language() const;

        /**
         * Checks the given word.
         * @return false if the word is misspelled. true otherwise
         */
        bool isCorrect(const QString &word) const;

        /**
         * Checks the given word.
         * @return true if the word is misspelled. false otherwise
         */
        bool isMisspelled(const QString &word) const;

        /**
         * Fetches suggestions for the word.
         *
         * @return list of all suggestions for the word
         */
        QStringList suggest(const QString &word) const;

        /**
         * Convience method calling isCorrect() and suggest()
         * if the word isn't correct.
         */
        bool checkAndSuggest(const QString &word,
                             QStringList &suggestions) const;

        /**
         * Stores user defined good replacement for the bad word.
         * @returns true on success
         */
        bool storeReplacement(const QString &bad,
                              const QString &good);

        /**
         * Adds word to the list of of personal words.
         * @return true on success
         */
        bool addToPersonal(const QString &word);

        /**
         * Adds word to the words recognizable in the current session.
         * @return true on success
         */
        bool addToSession(const QString &word);

    public: // Configuration API
        enum Attribute {
            CheckUppercase,
            SkipRunTogether
        };
        void save(KConfig *config);
        void restore(KConfig *config);

        /**
         * Returns names of all supported backends (e.g. ISpell, ASpell)
         */
        QStringList availableBackends() const;

        /**
         * Returns a list of supported languages.
         *
         * Note: use availableDictionaries
         */
        QStringList availableLanguages() const;
        /**
         * Returns a localized list of names of supported languages.
         *
         * Note: use availableDictionaries
         */
        QStringList availableLanguageNames() const;

        /**
         * Returns a map of all available language descriptions and their
         * codes
         */
        QMap<QString, QString> availableDictionaries() const;


        void setDefaultLanguage(const QString &lang);
        QString defaultLanguage() const;

        void setDefaultClient(const QString &client);
        QString defaultClient() const;

        void setAttribute(Attribute attr, bool b = true);
        bool testAttribute(Attribute attr) const;
    private:
        class Private;
        Private *const d;
    };
}
#endif