mapnik/include/map.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: map.hpp 39 2005-04-10 20:39:53Z pavlenko $

#ifndef MAP_HPP
#define MAP_HPP

#include <boost/serialization/serialization.hpp>
#include <boost/serialization/vector.hpp>
#include "feature_type_style.hpp"

namespace mapnik
{
    class Layer;

    class MAPNIK_DECL Map
    {
	friend class boost::serialization::access;
	template <typename Archive>
	void serialize(Archive & ar, const unsigned int /*version*/)
	{
	    ar  & boost::serialization::make_nvp("width",width_) 
		& boost::serialization::make_nvp("height",height_) 
		& boost::serialization::make_nvp("srid",srid_)
		& boost::serialization::make_nvp("layers",layers_);
	}
	
	static const unsigned MIN_MAPSIZE=16;
	static const unsigned MAX_MAPSIZE=1024;
	unsigned width_;
	unsigned height_;
	int srid_;
	Color background_;
	std::map<std::string,feature_type_style> styles_;
	std::vector<Layer> layers_;
	Envelope<double> currentExtent_;
    public:
	Map();
	Map(int width,int height,int srid=-1);
	Map(const Map& rhs);
	Map& operator=(const Map& rhs);

	bool insert_style(std::string const& name,feature_type_style const& style);
	void remove_style(const std::string& name);
	feature_type_style const& find_style(std::string const& name) const;
	size_t layerCount() const;
	void addLayer(const Layer& l);
	const Layer& getLayer(size_t index) const;
	Layer& getLayer(size_t index);
	void removeLayer(size_t index);
	std::vector<Layer> const& layers() const;
	unsigned getWidth() const;
	unsigned getHeight() const;
	void setWidth(unsigned width);
	void setHeight(unsigned height);
	void resize(unsigned width,unsigned height);
	int srid() const;
	void setBackground(const Color& c);
	const Color& getBackground() const;
	void zoom(double zoom);
	void zoomToBox(const Envelope<double>& box);
	void pan(int x,int y);
	void pan_and_zoom(int x,int y,double zoom);
	const Envelope<double>& getCurrentExtent() const;
	double scale() const;
	virtual ~Map();
    private:
	void fixAspectRatio();
    };
}

BOOST_CLASS_IMPLEMENTATION(std::vector<mapnik::Layer>, boost::serialization::object_serializable)
BOOST_CLASS_TRACKING(std::vector<mapnik::Layer>, boost::serialization::track_never)

BOOST_CLASS_IMPLEMENTATION(mapnik::Map, boost::serialization::object_serializable)
BOOST_CLASS_TRACKING(mapnik::Map, boost::serialization::track_never)

#endif //MAP_HPP