/********************************************************************
 KWin - the KDE window manager
 This file is part of the KDE project.

Copyright (C) 2009 Martin Gräßlin <kde@martin-graesslin.com>

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, see <http://www.gnu.org/licenses/>.
*********************************************************************/

#ifndef CLIENTMODEL_H
#define CLIENTMODEL_H
#include "tabboxhandler.h"

#include <QModelIndex>
/**
* @file
* This file defines the class ClientModel, the model for TabBoxClients.
*
* @author Martin Gräßlin <kde@martin-graesslin.com>
* @since 4.4
*/

namespace KWin
{
namespace TabBox
{


/**
* The model for TabBoxClients used in TabBox.
*
* @author Martin Gräßlin <kde@martin-graesslin.com>
* @since 4.4
*/
class ClientModel
    : public QAbstractItemModel
    {
    public:
        enum
            {
            ClientRole = Qt::UserRole, ///< The TabBoxClient
            CaptionRole = Qt::UserRole + 1, ///< The caption of TabBoxClient
            DesktopNameRole = Qt::UserRole + 2, ///< The name of the desktop the TabBoxClient is on
            IconRole = Qt::UserRole + 3, // TODO: to be removed
            EmptyRole = Qt::UserRole + 4, ///< Indicates if the model contains TabBoxClients
            WIdRole = Qt::UserRole + 5, ///< The window ID of TabBoxClient
            MinimizedRole = Qt::UserRole + 6 ///< TabBoxClient is minimized
            };
        ClientModel( QObject* parent = 0 );
        ~ClientModel();
        virtual QVariant data( const QModelIndex& index, int role = Qt::DisplayRole ) const;
        virtual int columnCount( const QModelIndex& parent = QModelIndex() ) const;
        virtual int rowCount( const QModelIndex& parent = QModelIndex() ) const;
        virtual QModelIndex parent( const QModelIndex& child ) const;
        virtual QModelIndex index( int row, int column, const QModelIndex& parent = QModelIndex() ) const;

        /**
        * @param client The TabBoxClient whose index should be returned
        * @return Returns the ModelIndex of given TabBoxClient or an invalid ModelIndex
        * if the model does not contain the given TabBoxClient.
        */
        QModelIndex index( TabBoxClient* client ) const;

        /**
        * Generates a new list of TabBoxClients based on the current config.
        * Calling this method will reset the model. If partialReset is true
        * the top of the list is kept as a starting point. If not the the
        * current active client is used as the starting point to generate the
        * list.
        * @param desktop The desktop for which the list should be created
        * @param partialReset Keep the currently selected client or regenerate everything
        */
        void createClientList( int desktop, bool partialReset = false );
        /**
        * This method is provided as a overload for current desktop
        * @see createClientList
        */
        void createClientList( bool partialReset = false );
        /**
        * @return Returns the current list of TabBoxClients.
        */
        TabBoxClientList clientList() const { return m_clientList; }

    private:
        TabBoxClientList m_clientList;
    };

} // namespace Tabbox
} // namespace KWin

#endif // CLIENTMODEL_H