/***************************************************************************
 *   Copyright (C) 2007 by Ilya Kotov                                      *
 *   forkotov02@hotmail.ru                                                 *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef CommandLineOption_H
#define CommandLineOption_H

#include <QtPlugin>
#include <QString>
#include <QList>

class MainWindow;

/**
    @author Vladimir Kuznetsov <vovanec@gmail.ru>
 */
class CommandLineOption
{
public:
    /*!
     * Returns \b true if \b opt_str string can be processed,
     * otherise \b false
     */
    virtual bool identify(const QString& opt_str)const = 0;
    
    /*!
     * Command line option name
     */
    virtual const QString name()const = 0;
    
    /*!
     * Help string.
     */
    virtual const QString helpString()const = 0;
    
    /*!
     * Parses \b opt_str args(if needed), executes command.
     */
    virtual void executeCommand(const QString& opt_str,MainWindow* mw) = 0;
    virtual ~CommandLineOption(){;}
};

Q_DECLARE_INTERFACE(CommandLineOption,"CommandLineOptionInterface/1.0");



typedef QList<CommandLineOption*> CommandLineOptionList;

class CommandLineOptionManager
{
public:
    CommandLineOptionManager();
    bool hasOption(const QString& );
    void executeCommand(const QString&,MainWindow* = NULL);
    CommandLineOption* operator[](int);
    int count()const;
protected:
    void registerBuiltingCommandLineOptions();
    void registerExternalCommandLineOptions();
private:
    void _register(CommandLineOption*);
private:
    CommandLineOptionList m_options;
};

/*!
 * Represens command line option handling for standard operations.
 */
class BuiltinCommandLineOption : public CommandLineOption
{
    virtual bool identify(const QString& str)const;
    virtual const QString helpString()const;
    virtual void executeCommand(const QString& option,MainWindow* = NULL);
    virtual const QString name()const;
    virtual ~BuiltinCommandLineOption(){;}
};

#endif