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

Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.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_HIGHLIGHTWINDOW_H
#define KWIN_HIGHLIGHTWINDOW_H

#include <kwineffects.h>

namespace KWin
{

class HighlightWindowEffect
    : public Effect
    {
    public:
        HighlightWindowEffect();
        virtual ~HighlightWindowEffect();

        virtual void prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time );
        virtual void paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data );

        virtual void windowAdded( EffectWindow* w );
        virtual void windowClosed( EffectWindow* w );
        virtual void windowDeleted( EffectWindow* w );

        virtual void propertyNotify( EffectWindow* w, long atom );

    private:
        void prepareHighlighting();
        void finishHighlighting();

        bool m_finishing;

        double m_fadeDuration;
        QHash<EffectWindow*, double> m_windowOpacity;

        long m_atom;
        QList<EffectWindow*> m_highlightedWindows;
        EffectWindow* m_monitorWindow;

        // Offscreen position cache
        /*QRect m_thumbArea; // Thumbnail area
        QPoint m_arrowTip; // Position of the arrow's tip
        QPoint m_arrowA; // Arrow vertex position at the base (First)
        QPoint m_arrowB; // Arrow vertex position at the base (Second)

        // Helper functions
        inline double aspectRatio( EffectWindow *w )
            { return w->width() / double( w->height() ); }
        inline int widthForHeight( EffectWindow *w, int height )
            { return int(( height / double( w->height() )) * w->width() ); }
        inline int heightForWidth( EffectWindow *w, int width )
            { return int(( width / double( w->width() )) * w->height() ); }*/
    };

} // namespace

#endif
