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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2010 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 OSGEARTHSYMBOLOGY_EXTRUSION_SYMBOL_H
#define OSGEARTHSYMBOLOGY_EXTRUSION_SYMBOL_H 1

#include <osgEarthSymbology/Common>
#include <osgEarthSymbology/Symbol>
#include <osgEarthSymbology/Expression>

namespace osgEarth { namespace Symbology
{
    using namespace osgEarth;

    class OSGEARTHSYMBOLOGY_EXPORT ExtrusionSymbol : public Symbol
    {
    public:
        // @deprecated
        enum HeightReference
        {
            HEIGHT_REFERENCE_Z,

            HEIGHT_REFERENCE_MSL
        };

    public:
        ExtrusionSymbol( const Config& conf =Config() );

        optional<float>& height() { return _height; }
        const optional<float>& height() const { return _height; }

        optional<NumericExpression>& heightExpression() { return _heightExpr; }
        const optional<NumericExpression>& heightExpression() const { return _heightExpr; }

        // @deprecated
        optional<HeightReference>& heightReference() { return _heightRef; }
        const optional<HeightReference>& heightReference() const { return _heightRef; }

        optional<bool>& flatten() { return _flatten; }
        const optional<bool>& flatten() const { return _flatten; }

        optional<std::string>& wallStyleName() { return _wallStyleName; }
        const optional<std::string>& wallStyleName() const { return _wallStyleName; }

        optional<std::string>& roofStyleName() { return _roofStyleName; }
        const optional<std::string>& roofStyleName() const { return _roofStyleName; }
        
    public:
        virtual Config getConfig() const;
        virtual void mergeConfig( const Config& conf );

    protected:
        optional<float>             _height;
        optional<bool>              _flatten;
        optional<NumericExpression> _heightExpr;
        optional<HeightReference>   _heightRef;
        optional<std::string>       _wallStyleName;
        optional<std::string>       _roofStyleName;
    };

} } // namespace osgEarth::Symbology

#endif // OSGEARTHSYMBOLOGY_EXTRUSION_SYMBOL_H