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convert json value into symbolizer_base::value_type

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This commit is contained in:
artemp 2013-12-11 13:57:42 -05:00
parent 7cf452da77
commit d5a0537471
1 changed files with 41 additions and 6 deletions
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47
include/mapnik/json/symbolizer_grammar.hpp
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@ -40,6 +40,44 @@ namespace fusion = boost::fusion;
namespace standard_wide = boost::spirit::standard_wide;
using standard_wide::space_type;
template <typename Symbolizer>
struct json_value_visitor : boost::static_visitor<>
{
json_value_visitor(Symbolizer & sym, mapnik::keys key)
: sym_(sym), key_(key) {}
void operator() (value_bool val) const
{
put<value_bool>(sym_, key_, val);
}
void operator() (value_integer val) const
{
put<value_integer>(sym_, key_, val);
}
void operator() (value_double val) const
{
put<value_double>(sym_, key_, val);
}
void operator() (std::string const& val) const
{
std::cerr << std::get<0>(get_meta(key_)) << ":" << val << std::endl;
put<std::string>(sym_, key_, val);
}
template <typename T>
void operator() (T const& val) const
{
std::cerr << std::get<0>(get_meta(key_)) << ":" << val << std::endl;
//put<T>(sym_, key_, val);
}
Symbolizer & sym_;
keys key_;
};
template <typename T>
struct put_property_visitor : boost::static_visitor<>
{
@ -51,8 +89,7 @@ struct put_property_visitor : boost::static_visitor<>
template <typename Symbolizer>
void operator() (Symbolizer & sym) const
{
std::cerr << std::get<0>(get_meta(key_)) << ":" << val_ << std::endl;
// put<value_type>(sym, key_, val_);
boost::apply_visitor(json_value_visitor<Symbolizer>(sym, key_), val_);
}
keys key_;
@ -62,8 +99,6 @@ struct put_property_visitor : boost::static_visitor<>
struct put_property
{
typedef void result_type;
//explicit put_property(mapnik::transcoder const& tr)
// : tr_(tr) {}
template <typename T0,typename T1, typename T2>
result_type operator() (T0 & sym, T1 const& name, T2 const& val) const
{
@ -76,12 +111,12 @@ struct put_property
std::cerr << err.what() << std::endl;
}
}
// mapnik::transcoder const& tr_;
};
template <typename Iterator>
struct symbolizer_grammar : qi::grammar<Iterator, space_type, symbolizer()>
{
typedef boost::variant<value_null,value_bool,value_integer,value_double, std::string> json_value_type;
symbolizer_grammar(generic_json<Iterator> & json)
: symbolizer_grammar::base_type(sym, "symbolizer"),
json_(json)
@ -171,7 +206,7 @@ struct symbolizer_grammar : qi::grammar<Iterator, space_type, symbolizer()>
// symbolizer
qi::rule<Iterator, space_type, mapnik::symbolizer()> sym;
qi::rule<Iterator,qi::locals<std::string>, void(mapnik::symbolizer&),space_type> property;
qi::rule<Iterator,boost::variant<value_null,value_bool,value_integer,value_double, std::string>, space_type> property_value;
qi::rule<Iterator, space_type, json_value_type()> property_value;
phoenix::function<put_property> put_property_;
// error