/* ****************************************************************************
  This file is part of KBabel

  Copyright (C) 1999-2000 by Matthias Kiefer
                            <matthias.kiefer@gmx.de>

  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 CATALOGVIEW_H
#define CATALOGVIEW_H

namespace KBabel
{

class EditCommand;

/**
 * This class represents a base class for a @ref Catalog view. It declares
 * an abstract method @ref update to be redefined by the actual
 * view. Using this method, the catalog the view is registered for
 * will inform the views about changes in the catalog.
 *
 * @short This class represents a base class for a catalog view.
 * @author Matthias Kiefer <matthias.kiefer@gmx.de>
 */                                                                              class CatalogView
{
public:
    /** The only method to be redefined in inherited classes.
     *  This method is called by @ref Catalog to update the view
     *  in case there are changes.
     *  @param cmd the command line performed on the catalog
     *  @param undo this is used for undo, reverse the operation
     */
    virtual void update(EditCommand* cmd, bool undo=false)=0;
};

}

#endif // CATALOGVIEW_H
