mapnik/include/property_index.hpp
Artem Pavlenko aed5516197 1. new feature model - based on boost::property_map concept
f = feature(id);
       f["name"] = "what is my name?";
       boost.put(f,"area",123123.4325);
       
2. simplified and corrected value class and operators
3. updated input plug-ins to work with new features
4. add text_symbolizer (getting there:)
5. template version of agg_renderer 
6. attribute_collector how accepts rules 
	(to collect attribute names for text labels)
2006-02-10 17:13:02 +00:00

71 lines
1.7 KiB
C++

/* This file is part of Mapnik (c++ mapping toolkit)
* Copyright (C) 2005 Artem Pavlenko
*
* Mapnik is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//$Id$
#ifndef PROPERTY_INDEX_HPP
#define PROPERTY_INDEX_HPP
#include "filter.hpp"
#include "expression.hpp"
#include <set>
namespace mapnik
{
/*
template <typename FeatureT>
class property_index : public filter_visitor<FeatureT>
{
public:
property_index(std::set<std::string> const& names)
: names_(names) {}
void visit(filter<FeatureT>& /*filter*/)
{
//not interested
}
void visit(expression<FeatureT>& exp)
{
property<FeatureT>* pf;
if ((pf = dynamic_cast<property<FeatureT>*>(&exp)))
{
std::set<std::string>::iterator pos;
pos = names_.find(pf->name());
if (pos != names_.end())
{
size_t idx = std::distance(names_.begin(),pos);
pf->set_index(idx);
}
}
}
virtual ~property_index() {}
private:
// no copying
property_index(property_index const&);
property_index& operator=(property_index const&);
private:
std::set<std::string> const& names_;
};
*/
}
#endif //PROPERTY_INDEX_HPP