/* -*-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_REGISTRY_H
#define OSGEARTHSYMBOLOGY_REGISTRY_H 1

#include <osgEarthSymbology/Common>
#include <osgEarthSymbology/SymbolDisplayFunctor>
#include <osg/Referenced>

namespace osgEarth { namespace Symbology
{

    /**
     * Interface for an object that compiles attributed geometry into
     * OSG scene graph elements based on a Style and a SymbologyContext.
     */
    class OSGEARTHSYMBOLOGY_EXPORT Registry : public osg::Referenced
    {
    public:

        Registry();

        static Registry* instance(bool erase = false);

        SymbolDisplayFunctor* getOrCreateDisplay(const std::string& symbol);
        typedef std::map<std::string, osg::ref_ptr<SymbolDisplayFunctor> > SymbolDisplayMap;

    protected:
        
        SymbolDisplayMap _symbols;
    };

} } // namespace osgEarth::Symbology

#endif
