/* -*-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 OSGEARTHSYMBOLOGY_BBOX_SYMBOL_H
#define OSGEARTHSYMBOLOGY_BBOX_SYMBOL_H 1

#include <osgEarth/Symbol>
#include <osgEarth/Expression>
#include <osgEarth/Fill>
#include <osgEarth/Stroke>

namespace osgEarth
{
    /**
     * Symbol that describes how to render bounding boxes around text labels.
     */
    class OSGEARTH_EXPORT BBoxSymbol : public Symbol
    {
    public:

        enum BboxGeom {
            GEOM_BOX,
            GEOM_BOX_ORIENTED
        };

        META_Object(osgEarth, BBoxSymbol);
    	
        BBoxSymbol(const BBoxSymbol& rhs,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
        BBoxSymbol( const Config& conf =Config() );

        /** dtor */
        virtual ~BBoxSymbol() { }

        /** Bounding box fill color. */
        optional<Fill>& fill() { return _fill; }
        const optional<Fill>& fill() const { return _fill; }

        /** Bounding box border color. */
        optional<Stroke>& border() { return _border; }
        const optional<Stroke>& border() const { return _border; }

        /** Bounding box border margin. */
        optional<float>& margin() { return _margin; }
        const optional<float>& margin() const { return _margin; }

        /** Bounding box geom to draw. */
        optional<BboxGeom>& geom() { return _bboxGeom; }
        const optional<BboxGeom>& geom() const { return _bboxGeom; }

    public:
        virtual Config getConfig() const;
        virtual void mergeConfig( const Config& conf );
        static void parseSLD(const Config& c, class Style& style);

    protected:
        optional<Fill>              _fill;
        optional<Stroke>            _border;
        optional<float>             _margin;
        optional<BboxGeom>          _bboxGeom;
    };
} // namespace osgEarth

#endif // OSGEARTHSYMBOLOGY_BBOX_SYMBOL_H