/* -*-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_ATTRIBUTES_FILTER_H
#define OSGEARTHFEATURES_ATTRIBUTES_FILTER_H 1

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

namespace osgEarth
{
    /**
     * Filters out features that have the given attributes
     */
    class OSGEARTH_EXPORT AttributesFilter : public FeatureFilter
    {
    public:
        // Call this determine whether this filter is available.
        static bool isSupported() { return true; }

    public:
        AttributesFilter();
        AttributesFilter(const std::vector<std::string>& attributes);
        AttributesFilter(const AttributesFilter& rhs);

        AttributesFilter(const Config& conf);

        /**
         * Serialize this FeatureFilter
         */
        virtual Config getConfig() const;

        virtual ~AttributesFilter() { }

    public:
        std::vector<std::string>& attributes()
        {
            return _attributes;
        }

        const std::vector<std::string>& attributes() const
        {
            return _attributes;
        }

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

    protected:
        std::vector<std::string> _attributes;
    };

} // namespace osgEarth

#endif // OSGEARTHFEATURES_ATTRIBUTES_FILTER_H
