/***************************************************************************
 *   Copyright (C) 2007 by Joris Guisson and Ivan Vasic                    *
 *   joris.guisson@gmail.com                                               *
 *   ivasic@gmail.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, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
 ***************************************************************************/

#ifndef KT_PREFDIALOG_HH
#define KT_PREFDIALOG_HH

#include <QList>
#include <QScrollArea>

#include <KConfigDialog>

namespace kt
{
    class Core;
    class PrefPageInterface;
    class NetworkPref;
    class QMPref;
    class PrefPageScrollArea;

    /**
     * KTorrent's preferences dialog, this uses the new KConfigDialog class which should make our live much easier.
     * In order for this to work properly the widgets have to be named kcfg_FOO where FOO is a somehting out of our settings class.
     *
     * The use of KConfigDialog should deprecate PrefPageInterface.
     * */
    class PrefDialog : public KConfigDialog
    {
        Q_OBJECT
    public:
        PrefDialog(QWidget* parent, Core* core);
        ~PrefDialog() override;

        /**
         * Add a pref page to the dialog.
         * @param page The page
         * */
        void addPrefPage(PrefPageInterface* page);

        /**
         * Remove a pref page.
         * @param page The page
         * */
        void removePrefPage(PrefPageInterface* page);

        /**
         * Update the widgets and show
         */
        void updateWidgetsAndShow();

        /**
         * Load the state of the dialog
         */
        void loadState(KSharedConfigPtr cfg);

        /**
         * Save the state of the dialog
         */
        void saveState(KSharedConfigPtr cfg);

    protected:
        void updateWidgets() override;
        void updateWidgetsDefault() override;
        void updateSettings() override;
        bool hasChanged() override;

    private slots:
        void calculateRecommendedSettings();

    private:
        QList<PrefPageScrollArea*> pages;
        NetworkPref* net_pref;
        QMPref* qm_pref;
    };

    class PrefPageScrollArea : public QScrollArea
    {
    public:
        PrefPageScrollArea(PrefPageInterface* page, QWidget* parent = 0);
        ~PrefPageScrollArea() override;

        PrefPageInterface* page;
        KPageWidgetItem* page_widget_item;
    };
}


#endif
