/* -*-c++-*- */
/* osgEarth - Geospatial SDK for OpenSceneGraph
 * Copyright 2020 Pelican Mapping
 * http://osgearth.org
 *
 * osgEarth is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */

#ifndef OSGEARTHFEATURES_CONVERT_TYPE_FILTER_H
#define OSGEARTHFEATURES_CONVERT_TYPE_FILTER_H 1

#include <osgEarth/Common>
#include <osgEarth/Feature>
#include <osgEarth/Filter>
#include <osg/Geode>

namespace osgEarth { namespace Util
{
    using namespace osgEarth;

    /**
     * This filter will change geometry from one type to another.
     */
    class OSGEARTH_EXPORT ConvertTypeFilter : public FeatureFilter
    {
    public:
        // Call this determine whether this filter is available.
        static bool isSupported() { return true; }

    public:
        ConvertTypeFilter() = default;
        ConvertTypeFilter(const ConvertTypeFilter&) = default;

        ConvertTypeFilter(const Geometry::Type& toType);
        ConvertTypeFilter(const Config& conf);

        //!Serialize this FeatureFilter
        Config getConfig() const override;

    public:
        const Geometry::Type& toType() const {
            return _toType.value(); }

    public:
        virtual FilterContext push( FeatureList& input, FilterContext& context );

    protected:
        optional<Geometry::Type> _toType = Geometry::TYPE_UNKNOWN;
    };
} }

#endif // OSGEARTHFEATURES_CONVERT_TYPE_FILTER_H
