/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2016 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 OSGEARTH_BUILDINGS_BUILDING_VISITOR_H
#define OSGEARTH_BUILDINGS_BUILDING_VISITOR_H

#include "Common"
#include "Building"
#include "Elevation"
#include "Roof"

namespace osgEarth { namespace Buildings
{
    class OSGEARTHBUILDINGS_EXPORT BuildingVisitor
    {
    public:
        virtual void apply(Building* building)   { traverse(building); }
        virtual void apply(Elevation* elevation) { traverse(elevation); }
        virtual void apply(Roof* roof)           { traverse(roof); }

    protected:
        void traverse(Building* building);
        void traverse(Elevation* elevation);
        void traverse(Roof* roof);
    };

} } // namespace

#endif // OSGEARTH_BUILDINGS_BUILDING_VISITOR_H
