mapnik/include/feature.hpp

/*****************************************************************************
 * 
 * This file is part of Mapnik (c++ mapping toolkit)
 *
 * Copyright (C) 2006 Artem Pavlenko
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *****************************************************************************/

//$Id: feature.hpp 40 2005-04-13 20:20:46Z pavlenko $

#ifndef FEATURE_HPP
#define FEATURE_HPP

#include "geometry.hpp"
#include "raster.hpp"
#include "value.hpp"
#include <map>

#include <boost/property_map.hpp>
#include <boost/utility.hpp>

namespace mapnik
{
    typedef boost::shared_ptr<raster> raster_ptr;    
    //typedef std::vector<value> properties;
    typedef boost::associative_property_map<std::map<std::string,value> > properties;
    
    template <typename T1,typename T2>
    struct feature : public properties,
		     private boost::noncopyable
    {
    public:
	typedef T1 geometry_type;
	typedef T2 raster_type;
    private:
	int id_;
	geometry_type geom_;
	raster_type   raster_;
	std::map<std::string,value> props_;
    public:
	explicit feature(int id)
	    : properties(props_),
	      id_(id),
	      geom_(),
	      raster_() {}

	feature(int id,const geometry_type& geom)
	    : properties(props_),
	      id_(id),
	      geom_(geom),
	      raster_() {}

	int id() const 
	{
	    return id_;
	}
	
	void set_geometry(geometry_type& geom)
	{
	    geom_=geom;
	}
	
	geometry_type const& get_geometry() const
	{
	    return geom_;
	}
        
	const raster_type& get_raster() const
	{
	    return raster_;
	}
	void set_raster(raster_type const& raster)
	{
	    raster_=raster;
	}
	
	const properties& get_properties() const 
	{
	    return props_;
	}
	
	std::string to_string() const
	{
	    std::stringstream ss;
	    ss << "feature (" << std::endl;
	    for (std::map<std::string,value>::const_iterator itr=props_.begin();
		 itr != props_.end();++itr)
	    {
		ss << "  " << itr->first  << ":" <<  itr->second << std::endl;
	    }
	    ss << ")" << std::endl;
	    return ss.str();
	}
    };

    typedef feature<geometry_ptr,raster_ptr> Feature;
    
    inline std::ostream& operator<< (std::ostream & out,Feature const& f)
    {
	out << f.to_string();
    	return out;
    }
}
#endif                                            //FEATURE_HPP