#ifndef adwaitascrollbarengine_h

#define adwaitascrollbarengine_h

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

 * Copyright (C) 2014 by Hugo Pereira Da Costa <hugo.pereira@free.fr>    *

 *                                                                       *

 * 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 .        *

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

#include "adwaitascrollbardata.h"

#include "adwaitawidgetstateengine.h"

namespace Adwaita

{

    //* stores scrollbar hovered action and timeLine

    class ScrollBarEngine: public WidgetStateEngine

    {

        Q_OBJECT

        public:

        //* constructor

        explicit ScrollBarEngine( QObject* parent ):

            WidgetStateEngine( parent )

        {}

        //* destructor

        virtual ~ScrollBarEngine( void )

        {}

        //* register scrollbar

        virtual bool registerWidget( QWidget*, AnimationModes );

        //*@name accessors

        //@{

        using WidgetStateEngine::isAnimated;

        using WidgetStateEngine::opacity;

        //* true if widget is animated

        virtual bool isAnimated( const QObject*, AnimationMode, QStyle::SubControl control );

        //* true if widget is animated

        virtual AnimationMode animationMode( const QObject* object, QStyle::SubControl control );

        //* animation opacity

        virtual qreal opacity( const QObject* object, QStyle::SubControl control );

        //* return true if given subcontrol is hovered

        virtual bool isHovered( const QObject* object, QStyle::SubControl control )

        {

            if( DataMap<WidgetStateData>::Value data = this->data( object, AnimationHover ) )

            {

                return static_cast<const ScrollBarData*>( data.data() )->isHovered( control );

            } else return false;

        }

        //* control rect associated to object

        virtual QRect subControlRect( const QObject* object, QStyle::SubControl control )

        {

            if( DataMap<WidgetStateData>::Value data = this->data( object, AnimationHover ) )

            {

                return static_cast<const ScrollBarData*>( data.data() )->subControlRect( control );

            } else return QRect();

        }

        //* mouse position

        virtual QPoint position( const QObject* object )

        {

            if( DataMap<WidgetStateData>::Value data = this->data( object, AnimationHover ) )

            {

                return static_cast<const ScrollBarData*>( data.data() )->position();

            } else return QPoint( -1, -1 );

        }

        //@}

        //*@name modifiers

        //@{

        //* control rect

        virtual void setSubControlRect( const QObject* object, QStyle::SubControl control, const QRect& rect )

        {

            if( DataMap<WidgetStateData>::Value data = this->data( object, AnimationHover ) )

            { static_cast<ScrollBarData*>( data.data() )->setSubControlRect( control, rect ); }

        }

        //@}

    };

}

#endif