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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2013 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_ANNO_MODEL_NODE_H
#define OSGEARTH_ANNO_MODEL_NODE_H 1

#include <osgEarthAnnotation/LocalizedNode>
#include <osgEarth/URI>
#include <osgEarth/CachePolicy>
#include <osgDB/ReaderWriter>

namespace osgEarth { namespace Annotation
{	
    using namespace osgEarth;
    using namespace osgEarth::Symbology;

    /**
     * Annotation node that loads a 3D model from a URI and places it
     * at a geo location.
     */
    class OSGEARTHANNO_EXPORT ModelNode : public LocalizedNode
    {
    public:
        /**
         * Constructs a model node; the style must contain an InstanceSymbol
         * (ModelSymbol or IconSymbol) to produce a valid node.
         */
        ModelNode(
            MapNode*              mapNode,
            const Style&          style,
            const osgDB::Options* dbOptions   =0L );

        /**
         * Sets a new style and rebuilds the node.
         */
        void setStyle( const Style& style );

        /**
         * Gets the style last used to build this node.
         */
        const Style& getStyle() const { return _style; }


    public:

        /**
         * Constructs a model node from a serialized Config.
         * (internal method).
         */
        ModelNode(
            MapNode*              mapNode,
            const Config&         conf,
            const osgDB::Options* dbOptions );

        virtual Config getConfig() const;

    protected: // LocalizedNode

        virtual osg::MatrixTransform* getTransform() { return _xform.get(); }

    protected:

        Style _style;
        osg::ref_ptr<const osgDB::Options> _dbOptions;
        osg::ref_ptr<osg::MatrixTransform> _xform;

        void init();

        virtual ~ModelNode() { }
    };

} } // namespace osgEarth::Annotation

#endif // OSGEARTH_ANNO_LOCAL_GEOMETRY_NODE_H