/********************************************************************
 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