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

Copyright (C) 2009 Jorge Mata <matamax123@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, see <http://www.gnu.org/licenses/>.
*********************************************************************/

#ifndef KWIN_SWIVELTABS_H
#define KWIN_SWIVELTABS_H

#include <kwineffects.h>

namespace KWin
{

class SwivelTabsEffect : public Effect
    {
    public:
        SwivelTabsEffect();
        virtual void reconfigure( ReconfigureFlags );
        virtual void prePaintScreen( ScreenPrePaintData& data, int time );
        virtual void prePaintWindow( EffectWindow *w, WindowPrePaintData &data, int time );
        virtual void paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data );
        virtual void postPaintWindow( EffectWindow* w );
        virtual void clientGroupItemSwitched( EffectWindow* from, EffectWindow* to );
        static bool supported();
    private:
        struct swivel
            {
            EffectWindow* hide;
            EffectWindow* show;
            TimeLine time;
            // The points of the transformed window
            QPoint topLeft, topRight, bottomLeft, bottomRight;
            // The size of the transformed window
            double left, top, right, bottom;
            };
        swivel windows;
        bool isActive, horizontal, vertical;
        int totalTime, kal;
        double PI, lastF;
        void nextStep( EffectWindow *w );
        void transformQuad( WindowQuad &quad );
        double calculateCoords( double original, double space, double newSpace );
    };

}

#endif
