85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2011 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
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#ifndef MAPNIK_PARAMS_HPP
|
|
#define MAPNIK_PARAMS_HPP
|
|
|
|
// mapnik
|
|
#include <mapnik/config.hpp>
|
|
#include <mapnik/value_types.hpp>
|
|
// boost
|
|
#include <boost/variant/variant.hpp>
|
|
#include <boost/optional.hpp>
|
|
|
|
// stl
|
|
#include <string>
|
|
#include <map>
|
|
|
|
namespace mapnik
|
|
{
|
|
|
|
// fwd declare
|
|
class boolean;
|
|
|
|
typedef boost::variant<value_null,value_integer,value_double,std::string> value_holder;
|
|
typedef std::pair<std::string, value_holder> parameter;
|
|
typedef std::map<std::string, value_holder> param_map;
|
|
|
|
class MAPNIK_DECL parameters : public param_map
|
|
{
|
|
public:
|
|
parameters() {}
|
|
template <typename T>
|
|
boost::optional<T> get(std::string const& key) const;
|
|
template <typename T>
|
|
boost::optional<T> get(std::string const& key, T const& default_opt_value) const;
|
|
|
|
};
|
|
|
|
#ifdef _MSC_VER
|
|
template MAPNIK_DECL
|
|
boost::optional<std::string> parameters::get(std::string const& key) const;
|
|
template MAPNIK_DECL
|
|
boost::optional<std::string> parameters::get(std::string const& key,
|
|
std::string const& default_opt_value) const;
|
|
template MAPNIK_DECL
|
|
boost::optional<value_double> parameters::get(std::string const& key) const;
|
|
template MAPNIK_DECL
|
|
boost::optional<value_double> parameters::get(std::string const& key,
|
|
value_double const& default_opt_value) const;
|
|
|
|
template MAPNIK_DECL
|
|
boost::optional<value_integer> parameters::get(std::string const& key) const;
|
|
template MAPNIK_DECL
|
|
boost::optional<value_integer> parameters::get(std::string const& key,
|
|
value_integer const& default_opt_value) const;
|
|
|
|
template MAPNIK_DECL
|
|
boost::optional<boolean> parameters::get(std::string const& key) const;
|
|
template MAPNIK_DECL
|
|
boost::optional<boolean> parameters::get(std::string const& key,
|
|
boolean const& default_opt_value) const;
|
|
#endif
|
|
|
|
}
|
|
|
|
#endif // MAPNIK_PARAMS_HPP
|