mapnik/src/text/properties_util.cpp
2014-09-17 19:22:07 +00:00

93 lines
2.7 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2014 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
*
*****************************************************************************/
#include <mapnik/text/properties_util.hpp>
#include <mapnik/expression_string.hpp>
#include <mapnik/text/font_feature_settings.hpp>
namespace mapnik { namespace detail {
struct property_serializer : public util::static_visitor<>
{
property_serializer(std::string const& name, boost::property_tree::ptree & node)
: name_(name),
node_(node) {}
void operator() (expression_ptr const& expr) const
{
if (expr) node_.put("<xmlattr>." + name_, to_expression_string(*expr));
}
void operator() (value_bool val) const
{
node_.put("<xmlattr>." + name_, val );
}
void operator() (value_integer val) const
{
node_.put("<xmlattr>." + name_, val );
}
void operator() (value_double val) const
{
node_.put("<xmlattr>." + name_, val );
}
void operator() (std::string const& val) const
{
node_.put("<xmlattr>." + name_, val );
}
void operator() (color const& val) const
{
node_.put("<xmlattr>." + name_, val );
}
void operator() (enumeration_wrapper const& val) const
{
std::string str = std::get<2>(get_meta(get_key(name_)))(val);
node_.put("<xmlattr>." + name_, str);
}
void operator() (font_feature_settings_ptr const& val) const
{
std::string str = val->to_string();
node_.put("<xmlattr>." + name_, str);
}
template <typename T>
void operator() (T const& val) const
{
std::cerr << "NOOP" << std::endl;
}
std::string const& name_;
boost::property_tree::ptree & node_;
};
}
void serialize_property(std::string const& name, symbolizer_base::value_type const& val, boost::property_tree::ptree & node)
{
util::apply_visitor(detail::property_serializer(name,node), val);
}
}