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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2015 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_DRIVER_KML_OPTIONS
#define OSGEARTH_DRIVER_KML_OPTIONS 1

#include <osgEarth/Common>
#include <osgEarth/URI>
#include <osgEarthSymbology/Style>
#include <osg/Image>

namespace osgEarth { namespace Drivers
{
    using namespace osgEarth;
    using namespace osgEarth::Symbology;

    /**
     * Options for the KML loader. You can pass an instance of this class
     * to KML::load()
     */
    class KMLOptions // NO EXPORT; header only
    {
    public:
        /** TextSymbol to use when no styles are set in the KML. */
        osg::ref_ptr<TextSymbol>& defaultTextSymbol() { return _defaultTextSymbol; }
        const osg::ref_ptr<TextSymbol>& defaultTextSymbol() const { return _defaultTextSymbol; }

        /** Default IconSymbol to use for placemarks that don't specify an icon or a model */
        osg::ref_ptr<IconSymbol>& defaultIconSymbol() { return _defaultIconSymbol; }
        const osg::ref_ptr<IconSymbol>& defaultIconSymbol() const { return _defaultIconSymbol; }

        /** Default base scale to apply to marker Icons. */
        optional<float>& iconBaseScale() { return _iconBaseScale; }
        const optional<float>& iconBaseScale() const { return _iconBaseScale; }

        /** Maximum size (either dimension) of placemarks icons */
        optional<unsigned>& iconMaxSize() { return _iconMaxSize; }
        const optional<unsigned>& iconMaxSize() const { return _iconMaxSize; }

        /** Automatically assign KML icons and labels to a decluttering bin */
        optional<bool>& declutter() { return _declutter; }
        const optional<bool>& declutter() const { return _declutter; }

        /** Specify a group to which to add screen-space items (2D icons and labels) */
        osg::ref_ptr<osg::Group> iconAndLabelGroup() { return _iconAndLabelGroup; }
        const osg::ref_ptr<osg::Group> iconAndLabelGroup() const { return _iconAndLabelGroup; }

        /** Default scale factor to apply to embedded 3D models */
        optional<float>& modelScale() { return _modelScale; }
        const optional<float>& modelScale() const { return _modelScale; }

        /** Default rotation to apply to embedded 3D models */
        optional<osg::Quat>& modelRotation() { return _modelRotation; }
        const optional<osg::Quat>& modelRotation() const { return _modelRotation; }

    public:
        KMLOptions() : _declutter( true ), _iconBaseScale( 1.0f ), _iconMaxSize(32), _modelScale(1.0f) { }

        virtual ~KMLOptions() { }

    protected:
        osg::ref_ptr<IconSymbol> _defaultIconSymbol;
        osg::ref_ptr<TextSymbol> _defaultTextSymbol;
        optional<bool>           _declutter;
        optional<float>          _iconBaseScale;
        optional<unsigned>       _iconMaxSize;
        optional<float>          _modelScale;
        optional<osg::Quat>      _modelRotation;
        osg::ref_ptr<osg::Group> _iconAndLabelGroup;
    };

} } // namespace osgEarth::Drivers

#endif // OSGEARTH_DRIVER_KML_OPTIONS