379 lines
11 KiB
C++
379 lines
11 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2013 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#include "boost_std_shared_shim.hpp" // FIXME - do we need it?
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// The functions in this file produce deprecation warnings.
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// But as shield symbolizer doesn't fully support more than one
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// placement from python yet these functions are actually the
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// correct ones.
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#define NO_DEPRECATION_WARNINGS
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// boost
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#include <boost/python.hpp>
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#include <boost/variant.hpp>
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#include <boost/python/suite/indexing/map_indexing_suite.hpp>
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// mapnik
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#include <mapnik/symbolizer.hpp>
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#include <mapnik/symbolizer_hash.hpp>
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#include <mapnik/symbolizer_utils.hpp>
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#include <mapnik/symbolizer_keys.hpp>
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#include <mapnik/image_util.hpp>
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#include <mapnik/parse_path.hpp>
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#include <mapnik/path_expression.hpp>
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#include "mapnik_enumeration.hpp"
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#include "mapnik_svg.hpp"
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#include <mapnik/graphics.hpp>
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#include <mapnik/expression_node.hpp>
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#include <mapnik/value_error.hpp>
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#include <mapnik/marker_cache.hpp> // for known_svg_prefix_
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// stl
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#include <sstream>
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using mapnik::symbolizer;
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using mapnik::point_symbolizer;
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using mapnik::line_symbolizer;
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using mapnik::line_pattern_symbolizer;
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using mapnik::polygon_symbolizer;
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using mapnik::polygon_pattern_symbolizer;
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using mapnik::raster_symbolizer;
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using mapnik::shield_symbolizer;
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using mapnik::text_symbolizer;
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using mapnik::building_symbolizer;
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using mapnik::markers_symbolizer;
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using mapnik::symbolizer_base;
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using mapnik::color;
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using mapnik::path_processor_type;
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using mapnik::path_expression_ptr;
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using mapnik::guess_type;
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using mapnik::expression_ptr;
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using mapnik::parse_path;
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namespace {
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using namespace boost::python;
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void __setitem__(mapnik::symbolizer_base & sym, std::string const& name, mapnik::symbolizer_base::value_type const& val)
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{
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put(sym, mapnik::get_key(name), val);
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}
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struct extract_python_object : public boost::static_visitor<boost::python::object>
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{
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typedef boost::python::object result_type;
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template <typename T>
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auto operator() (T const& val) const -> result_type
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{
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return result_type(val); // wrap into python object
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}
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};
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boost::python::object __getitem__(mapnik::symbolizer_base const& sym, std::string const& name)
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{
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typedef symbolizer_base::cont_type::const_iterator const_iterator;
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mapnik::keys key = mapnik::get_key(name);
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const_iterator itr = sym.properties.find(key);
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if (itr != sym.properties.end())
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{
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return boost::apply_visitor(extract_python_object(), itr->second);
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}
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//mapnik::property_meta_type const& meta = mapnik::get_meta(key);
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//return boost::apply_visitor(extract_python_object(), std::get<1>(meta));
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return boost::python::object();
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}
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struct symbolizer_to_json : public boost::static_visitor<std::string>
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{
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typedef std::string result_type;
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template <typename T>
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auto operator() (T const& sym) const -> result_type
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{
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std::stringstream ss;
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ss << "{\"type\":\"" << mapnik::symbolizer_traits<T>::name() << "\",";
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ss << "\"properties\":{";
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bool first = true;
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for (auto const& prop : sym.properties)
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{
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if (first) first = false;
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else ss << ",";
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ss << "\"" << std::get<0>(get_meta(prop.first)) << "\":";
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ss << "\"<property-value-fixme>\""; //prop.second ; FIXME
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}
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ss << "}}";
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return ss.str();
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}
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};
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std::string __str__(mapnik::symbolizer const& sym)
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{
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return boost::apply_visitor(symbolizer_to_json(), sym);
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}
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std::string get_symbolizer_type(symbolizer const& sym)
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{
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return mapnik::symbolizer_name(sym); // FIXME - do we need this ?
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}
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const point_symbolizer& point_(symbolizer const& sym )
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{
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return boost::get<point_symbolizer>(sym);
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}
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const line_symbolizer& line_( const symbolizer& sym )
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{
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return boost::get<line_symbolizer>(sym);
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}
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const polygon_symbolizer& polygon_( const symbolizer& sym )
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{
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return boost::get<polygon_symbolizer>(sym);
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}
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const raster_symbolizer& raster_( const symbolizer& sym )
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{
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return boost::get<raster_symbolizer>(sym);
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}
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const text_symbolizer& text_( const symbolizer& sym )
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{
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return boost::get<text_symbolizer>(sym);
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}
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const shield_symbolizer& shield_( const symbolizer& sym )
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{
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return boost::get<shield_symbolizer>(sym);
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}
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const line_pattern_symbolizer& line_pattern_( const symbolizer& sym )
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{
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return boost::get<line_pattern_symbolizer>(sym);
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}
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const polygon_pattern_symbolizer& polygon_pattern_( const symbolizer& sym )
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{
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return boost::get<polygon_pattern_symbolizer>(sym);
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}
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const building_symbolizer& building_( const symbolizer& sym )
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{
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return boost::get<building_symbolizer>(sym);
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}
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const markers_symbolizer& markers_( const symbolizer& sym )
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{
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return boost::get<markers_symbolizer>(sym);
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}
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struct symbolizer_hash_visitor : public boost::static_visitor<std::size_t>
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{
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template <typename T>
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std::size_t operator() (T const& sym) const
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{
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return mapnik::symbolizer_hash::value(sym);
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}
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};
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std::size_t hash_impl(symbolizer const& sym)
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{
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return boost::apply_visitor(symbolizer_hash_visitor(), sym);
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}
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}
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void export_symbolizer()
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{
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using namespace boost::python;
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implicitly_convertible<std::string, mapnik::symbolizer_base::value_type>();
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implicitly_convertible<mapnik::color, mapnik::symbolizer_base::value_type>();
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implicitly_convertible<mapnik::expression_ptr, mapnik::symbolizer_base::value_type>();
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implicitly_convertible<mapnik::value_integer, mapnik::symbolizer_base::value_type>();
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implicitly_convertible<mapnik::value_double, mapnik::symbolizer_base::value_type>();
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implicitly_convertible<mapnik::value_bool, mapnik::symbolizer_base::value_type>();
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enum_<mapnik::keys>("keys")
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.value("gamma", mapnik::keys::gamma)
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.value("gamma_method",mapnik::keys::gamma_method)
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;
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class_<symbolizer>("Symbolizer",no_init)
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.def("type",get_symbolizer_type)
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.def("__hash__",hash_impl)
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.def("point",point_,
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return_value_policy<copy_const_reference>())
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.def("line",line_,
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return_value_policy<copy_const_reference>())
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.def("line_pattern",line_pattern_,
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return_value_policy<copy_const_reference>())
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.def("polygon",polygon_,
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return_value_policy<copy_const_reference>())
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.def("polygon_pattern",polygon_pattern_,
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return_value_policy<copy_const_reference>())
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.def("raster",raster_,
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return_value_policy<copy_const_reference>())
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.def("shield",shield_,
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return_value_policy<copy_const_reference>())
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.def("text",text_,
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return_value_policy<copy_const_reference>())
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.def("building",building_,
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return_value_policy<copy_const_reference>())
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.def("markers",markers_,
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return_value_policy<copy_const_reference>())
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;
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class_<symbolizer_base>("SymbolizerBase",no_init)
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.def("__setitem__",&__setitem__)
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.def("__setattr__",&__setitem__)
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.def("__getitem__",&__getitem__)
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.def("__getattr__",&__getitem__)
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.def("__str__", &__str__)
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;
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}
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void export_shield_symbolizer()
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{
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using namespace boost::python;
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class_< shield_symbolizer, bases<text_symbolizer> >("ShieldSymbolizer",
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init<>("Default ctor"))
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;
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}
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void export_polygon_symbolizer()
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{
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using namespace boost::python;
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class_<polygon_symbolizer, bases<symbolizer_base> >("PolygonSymbolizer",
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init<>("Default ctor"))
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;
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}
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void export_polygon_pattern_symbolizer()
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{
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using namespace boost::python;
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mapnik::enumeration_<mapnik::pattern_alignment_e>("pattern_alignment")
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.value("LOCAL",mapnik::LOCAL_ALIGNMENT)
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.value("GLOBAL",mapnik::GLOBAL_ALIGNMENT)
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;
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class_<polygon_pattern_symbolizer>("PolygonPatternSymbolizer",
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init<>("Default ctor"))
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;
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}
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void export_raster_symbolizer()
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{
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using namespace boost::python;
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class_<raster_symbolizer, bases<symbolizer_base> >("RasterSymbolizer",
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init<>("Default ctor"))
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;
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}
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void export_point_symbolizer()
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{
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using namespace boost::python;
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mapnik::enumeration_<mapnik::point_placement_e>("point_placement")
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.value("CENTROID",mapnik::CENTROID_POINT_PLACEMENT)
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.value("INTERIOR",mapnik::INTERIOR_POINT_PLACEMENT)
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;
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class_<point_symbolizer, bases<symbolizer_base> >("PointSymbolizer",
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init<>("Default Point Symbolizer - 4x4 black square"))
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;
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}
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void export_markers_symbolizer()
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{
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using namespace boost::python;
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mapnik::enumeration_<mapnik::marker_placement_e>("marker_placement")
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.value("POINT_PLACEMENT",mapnik::MARKER_POINT_PLACEMENT)
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.value("INTERIOR_PLACEMENT",mapnik::MARKER_INTERIOR_PLACEMENT)
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.value("LINE_PLACEMENT",mapnik::MARKER_LINE_PLACEMENT)
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;
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mapnik::enumeration_<mapnik::marker_multi_policy_e>("marker_multi_policy")
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.value("EACH",mapnik::MARKER_EACH_MULTI)
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.value("WHOLE",mapnik::MARKER_WHOLE_MULTI)
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.value("LARGEST",mapnik::MARKER_LARGEST_MULTI)
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;
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class_<markers_symbolizer, bases<symbolizer_base> >("MarkersSymbolizer",
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init<>("Default Markers Symbolizer - circle"))
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;
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}
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void export_line_symbolizer()
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{
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using namespace boost::python;
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mapnik::enumeration_<mapnik::line_rasterizer_e>("line_rasterizer")
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.value("FULL",mapnik::RASTERIZER_FULL)
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.value("FAST",mapnik::RASTERIZER_FAST)
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;
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class_<line_symbolizer, bases<symbolizer_base> >("LineSymbolizer",
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init<>("Default LineSymbolizer - 1px solid black"))
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;
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}
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void export_line_pattern_symbolizer()
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{
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using namespace boost::python;
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class_<line_pattern_symbolizer, bases<symbolizer_base> >("LinePatternSymbolizer",
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init<> ("Default LinePatternSymbolizer"))
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;
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}
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void export_debug_symbolizer()
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{
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using namespace boost::python;
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mapnik::enumeration_<mapnik::debug_symbolizer_mode_e>("debug_symbolizer_mode")
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.value("COLLISION",mapnik::DEBUG_SYM_MODE_COLLISION)
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.value("VERTEX",mapnik::DEBUG_SYM_MODE_VERTEX)
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;
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class_<mapnik::debug_symbolizer, bases<symbolizer_base> >("DebugSymbolizer",
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init<>("Default debug Symbolizer"))
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;
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}
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void export_building_symbolizer()
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{
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using namespace boost::python;
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class_<building_symbolizer, bases<symbolizer_base> >("BuildingSymbolizer",
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init<>("Default BuildingSymbolizer"))
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;
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}
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