1838 lines
64 KiB
C++
1838 lines
64 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) 2017 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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// mapnik
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#include <mapnik/debug.hpp>
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#include <mapnik/load_map.hpp>
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#include <mapnik/xml_tree.hpp>
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#include <mapnik/version.hpp>
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#include <mapnik/image_compositing.hpp>
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#include <mapnik/image_scaling.hpp>
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#include <mapnik/color.hpp>
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#include <mapnik/color_factory.hpp>
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#include <mapnik/symbolizer.hpp>
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#include <mapnik/symbolizer_utils.hpp>
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#include <mapnik/feature_type_style.hpp>
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#include <mapnik/layer.hpp>
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#include <mapnik/datasource_cache.hpp>
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#include <mapnik/font_engine_freetype.hpp>
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#include <mapnik/font_set.hpp>
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#include <mapnik/xml_loader.hpp>
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#include <mapnik/expression.hpp>
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#include <mapnik/parse_path.hpp>
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#include <mapnik/transform/parse_transform.hpp>
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#include <mapnik/raster_colorizer.hpp>
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#include <mapnik/svg/svg_path_parser.hpp>
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#include <mapnik/text/placements/registry.hpp>
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#include <mapnik/text/placements/dummy.hpp>
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#include <mapnik/rule.hpp>
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#include <mapnik/config_error.hpp>
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#include <mapnik/util/dasharray_parser.hpp>
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#include <mapnik/util/conversions.hpp>
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#include <mapnik/util/trim.hpp>
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#include <mapnik/marker_cache.hpp>
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#include <mapnik/util/noncopyable.hpp>
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#include <mapnik/util/fs.hpp>
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#include <mapnik/util/name_to_int.hpp>
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#include <mapnik/image_filter_types.hpp>
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#include <mapnik/projection.hpp>
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#include <mapnik/group/group_rule.hpp>
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#include <mapnik/transform/transform_expression.hpp>
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#include <mapnik/evaluate_global_attributes.hpp>
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#include <mapnik/boolean.hpp>
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#pragma GCC diagnostic push
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#include <mapnik/warning_ignore.hpp>
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#include <boost/optional.hpp>
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#include <boost/tokenizer.hpp>
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#include <boost/property_tree/ptree.hpp>
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#include <boost/property_tree/xml_parser.hpp>
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#include <boost/static_assert.hpp>
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#pragma GCC diagnostic pop
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// stl
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#include <algorithm>
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#pragma GCC diagnostic push
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#include <mapnik/warning_ignore_agg.hpp>
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#include "agg_trans_affine.h"
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#pragma GCC diagnostic pop
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using boost::tokenizer;
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namespace mapnik
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{
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using boost::optional;
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using util::name_to_int;
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using util::operator"" _case;
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class map_parser : util::noncopyable
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{
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public:
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map_parser(Map & map, bool strict, std::string const& filename = "") :
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strict_(strict),
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filename_(filename),
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font_library_(),
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font_file_mapping_(map.get_font_file_mapping()),
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font_name_cache_(),
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file_sources_(),
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fontsets_(),
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xml_base_path_() {}
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void parse_map(Map & map, xml_node const& node, std::string const& base_path);
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private:
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void parse_map_include(Map & map, xml_node const& node);
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void parse_style(Map & map, xml_node const& node);
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template <typename Parent>
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void parse_layer(Parent & parent, xml_node const& node);
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void parse_symbolizer_base(symbolizer_base &sym, xml_node const& node);
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void parse_fontset(Map & map, xml_node const & node);
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bool parse_font(font_set & fset, xml_node const& f);
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void parse_rule(feature_type_style & style, xml_node const & node);
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void parse_symbolizers(rule & rule, xml_node const & node);
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void parse_point_symbolizer(rule & rule, xml_node const& node);
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void parse_line_pattern_symbolizer(rule & rule, xml_node const& node);
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void parse_polygon_pattern_symbolizer(rule & rule, xml_node const& node);
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void parse_text_symbolizer(rule & rule, xml_node const& node);
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void parse_shield_symbolizer(rule & rule, xml_node const& node);
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void parse_line_symbolizer(rule & rule, xml_node const& node);
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void parse_polygon_symbolizer(rule & rule, xml_node const& node);
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void parse_building_symbolizer(rule & rule, xml_node const& node);
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void parse_raster_symbolizer(rule & rule, xml_node const& node);
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void parse_markers_symbolizer(rule & rule, xml_node const& node);
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void parse_group_symbolizer(rule &rule, xml_node const& node);
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void parse_debug_symbolizer(rule & rule, xml_node const& node);
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void parse_dot_symbolizer(rule & rule, xml_node const& node);
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void parse_group_rule(group_symbolizer_properties &prop, xml_node const& node);
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void parse_simple_layout(group_symbolizer_properties &prop, xml_node const& node);
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void parse_pair_layout(group_symbolizer_properties &prop, xml_node const& node);
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bool parse_raster_colorizer(raster_colorizer_ptr const& rc, xml_node const& node);
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void parse_stroke(symbolizer_base & symbol, xml_node const& node);
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void ensure_font_face(std::string const& face_name);
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void find_unused_nodes(xml_node const& root);
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void find_unused_nodes_recursive(xml_node const& node, std::string & error_text);
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std::string ensure_relative_to_xml(boost::optional<std::string> const& opt_path);
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void ensure_exists(std::string const& file_path);
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void check_styles(Map const & map);
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boost::optional<color> get_opt_color_attr(boost::property_tree::ptree const& node,
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std::string const& name);
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bool strict_;
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std::string filename_;
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std::map<std::string,parameters> datasource_templates_;
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font_library font_library_;
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freetype_engine::font_file_mapping_type & font_file_mapping_;
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std::map<std::string,bool> font_name_cache_;
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std::map<std::string,std::string> file_sources_;
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std::map<std::string,font_set> fontsets_;
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std::string xml_base_path_;
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};
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struct allow_overlap_visitor
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{
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bool operator()(point_symbolizer const&) { return true; }
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bool operator()(line_symbolizer const&) { return false; }
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bool operator()(line_pattern_symbolizer const&) { return false; }
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bool operator()(polygon_symbolizer const&) { return false; }
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bool operator()(polygon_pattern_symbolizer const&) { return false; }
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bool operator()(raster_symbolizer const&) { return false; }
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bool operator()(shield_symbolizer const&) { return false; }
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bool operator()(text_symbolizer const&) { return true; }
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bool operator()(building_symbolizer const&) { return false; }
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bool operator()(markers_symbolizer const&) { return true; }
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bool operator()(group_symbolizer const&) { return false; }
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bool operator()(debug_symbolizer const&) { return true; } //Requires the quadtree
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bool operator()(dot_symbolizer const&) { return false; }
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};
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// If all symbolizers declare 'allow_overlap: true' (their placement is independent
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// from already placed symbols), there is no need to check collisions with subsequent
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// symbolizers. To avoid building the quadtree unnecessarily we set
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// the 'ignore_placement' flag
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void map_apply_overlap_optimization(Map &map)
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{
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bool ignore_placement = true;
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for (auto const & style : map.styles())
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{
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for (auto const & rule : style.second.get_rules())
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{
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for (auto const & sym : rule)
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{
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struct allow_overlap_visitor visitor;
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if (util::apply_visitor(visitor, sym))
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{
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symbolizer_base const & sb = sym.get_unchecked<markers_symbolizer>();
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auto prop_it = sb.properties.find(keys::allow_overlap);
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if (prop_it != sb.properties.end())
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{
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if (prop_it->second == true)
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{
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continue;
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}
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}
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ignore_placement = false;
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break;
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}
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}
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}
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}
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if (ignore_placement)
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{
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for (auto & style : map.styles())
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{
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for (auto & rule : style.second.get_rules_nonconst())
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{
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for (auto & sym : rule)
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{
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struct allow_overlap_visitor visitor;
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if (util::apply_visitor(visitor, sym))
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{
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symbolizer_base & sb = sym.get_unchecked<markers_symbolizer>();
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sb.properties[keys::ignore_placement] = true;
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}
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}
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}
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}
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MAPNIK_LOG_DEBUG(load_map) << "setting ignore_placement=true due to all rules having allow_overlap=true";
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}
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}
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void load_map(Map & map, std::string const& filename, bool strict, std::string base_path)
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{
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xml_tree tree;
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tree.set_filename(filename);
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read_xml(filename, tree.root());
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map_parser parser(map, strict, filename);
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parser.parse_map(map, tree.root(), base_path);
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map_apply_overlap_optimization(map);
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}
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void load_map_string(Map & map, std::string const& str, bool strict, std::string base_path)
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{
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xml_tree tree;
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if (!base_path.empty())
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{
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read_xml_string(str, tree.root(), base_path); // accept base_path passed into function
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}
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else
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{
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read_xml_string(str, tree.root(), map.base_path()); // FIXME - this value is not fully known yet
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}
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map_parser parser(map, strict, base_path);
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parser.parse_map(map, tree.root(), base_path);
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map_apply_overlap_optimization(map);
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}
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void map_parser::parse_map(Map & map, xml_node const& node, std::string const& base_path)
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{
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try
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{
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xml_node const& map_node = node.get_child("Map");
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try
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{
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optional<std::string> base_path_from_xml = map_node.get_opt_attr<std::string>("base");
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if (!base_path.empty())
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{
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map.set_base_path(base_path);
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}
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else if (base_path_from_xml)
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{
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map.set_base_path(*base_path_from_xml);
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}
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else if (!filename_.empty())
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{
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map.set_base_path(mapnik::util::dirname(filename_));
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}
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xml_base_path_ = map.base_path();
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optional<color> bgcolor = map_node.get_opt_attr<color>("background-color");
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if (bgcolor)
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{
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map.set_background(*bgcolor);
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}
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optional<std::string> image_filename = map_node.get_opt_attr<std::string>("background-image");
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if (image_filename)
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{
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map.set_background_image(ensure_relative_to_xml(image_filename));
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}
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optional<std::string> comp_op_name = map_node.get_opt_attr<std::string>("background-image-comp-op");
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if (comp_op_name)
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{
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optional<composite_mode_e> comp_op = comp_op_from_string(*comp_op_name);
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if (comp_op)
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{
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map.set_background_image_comp_op(*comp_op);
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}
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else
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{
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throw config_error("failed to parse background-image-comp-op: '" + *comp_op_name + "'");
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}
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}
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optional<double> opacity = map_node.get_opt_attr<double>("background-image-opacity");
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if (opacity)
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{
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map.set_background_image_opacity(*opacity);
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}
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std::string srs = map_node.get_attr("srs", map.srs());
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try
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{
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// create throwaway projection object here to ensure it is valid
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projection proj(srs,true);
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}
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catch (std::exception const& ex)
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{
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throw mapnik::config_error(ex.what());
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}
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map.set_srs(srs);
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optional<int> buffer_size = map_node.get_opt_attr<int>("buffer-size");
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if (buffer_size)
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{
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map.set_buffer_size(*buffer_size);
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}
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optional<std::string> maximum_extent = map_node.get_opt_attr<std::string>("maximum-extent");
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if (maximum_extent)
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{
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box2d<double> box;
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if (box.from_string(*maximum_extent))
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{
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map.set_maximum_extent(box);
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}
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else
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{
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std::string s_err("failed to parse Map maximum-extent '");
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s_err += *maximum_extent + "'";
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if (strict_)
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{
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throw config_error(s_err);
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}
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else
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{
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MAPNIK_LOG_ERROR(load_map) << "map_parser: " << s_err;
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}
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}
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}
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optional<std::string> font_directory = map_node.get_opt_attr<std::string>("font-directory");
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if (font_directory)
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{
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map.set_font_directory(*font_directory);
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if (!map.register_fonts(ensure_relative_to_xml(font_directory), false))
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{
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if (strict_)
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{
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throw config_error(std::string("Failed to load fonts from: ") + *font_directory);
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}
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}
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}
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optional<std::string> min_version_string = map_node.get_opt_attr<std::string>("minimum-version");
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if (min_version_string)
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{
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boost::char_separator<char> sep(".");
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boost::tokenizer<boost::char_separator<char> > tokens(*min_version_string, sep);
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unsigned i = 0;
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bool success = false;
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int n[3];
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for (auto const& beg : tokens)
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{
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std::string item = mapnik::util::trim_copy(beg);
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if (!mapnik::util::string2int(item,n[i]))
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{
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throw config_error(std::string("Invalid version string encountered: '")
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+ beg + "' in '" + *min_version_string + "'");
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}
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if (i==2)
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{
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success = true;
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break;
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}
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++i;
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}
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if (success)
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{
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if (!MAPNIK_VERSION_AT_LEAST(n[0], n[1], n[2]))
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{
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throw config_error(std::string("This map uses features only present in Mapnik version ") + *min_version_string + " and newer");
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}
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}
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}
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}
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catch (config_error const& ex)
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{
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ex.append_context(map_node);
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throw;
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}
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parse_map_include(map, map_node);
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}
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catch (node_not_found const&)
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{
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throw config_error("Not a map file. Node 'Map' not found.");
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}
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find_unused_nodes(node);
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if (strict_)
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{
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check_styles(map);
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}
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}
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void map_parser::parse_map_include(Map & map, xml_node const& node)
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{
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try
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{
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for (auto const& n : node)
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{
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if (n.is_text()) continue;
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if (n.is("Include"))
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{
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parse_map_include(map, n);
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}
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else if (n.is("Style"))
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{
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parse_style(map, n);
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}
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else if (n.is("Layer"))
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{
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parse_layer(map, n);
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}
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else if (n.is("FontSet"))
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{
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parse_fontset(map, n);
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}
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else if (n.is("FileSource"))
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{
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file_sources_[n.get_attr<std::string>("name")] = n.get_text();
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}
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else if (n.is("Datasource"))
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{
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std::string name = n.get_attr("name", std::string("Unnamed"));
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parameters params;
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for (auto const& p: n)
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{
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if (p.is("Parameter"))
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{
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params[p.get_attr<std::string>("name")] = p.get_text();
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}
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}
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datasource_templates_[std::move(name)] = std::move(params);
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}
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else if (n.is("Parameters"))
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{
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parameters & params = map.get_extra_parameters();
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for (auto const& p: n)
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{
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if (p.is("Parameter"))
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{
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std::string val = p.get_text();
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std::string key = p.get_attr<std::string>("name");
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mapnik::value_bool b;
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mapnik::value_integer i;
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mapnik::value_double d;
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if (mapnik::util::string2int(val,i)) params[key] = i;
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else if (mapnik::util::string2bool(val,b)) params[key] = b;
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else if (mapnik::util::string2double(val,d)) params[key] = d;
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else params[key] = val;
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}
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}
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}
|
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}
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}
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catch (config_error const& ex)
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{
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ex.append_context(node);
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throw;
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}
|
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}
|
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|
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void map_parser::parse_style(Map & map, xml_node const& node)
|
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{
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std::string name("<missing name>");
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try
|
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{
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name = node.get_attr<std::string>("name");
|
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feature_type_style style;
|
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filter_mode_e filter_mode = node.get_attr<filter_mode_e>("filter-mode", FILTER_ALL);
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style.set_filter_mode(filter_mode);
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// compositing
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optional<std::string> comp_op_name = node.get_opt_attr<std::string>("comp-op");
|
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if (comp_op_name)
|
|
{
|
|
optional<composite_mode_e> comp_op = comp_op_from_string(*comp_op_name);
|
|
if (comp_op)
|
|
{
|
|
style.set_comp_op(*comp_op);
|
|
}
|
|
else
|
|
{
|
|
throw config_error("failed to parse comp-op: '" + *comp_op_name + "'");
|
|
}
|
|
}
|
|
|
|
optional<double> opacity = node.get_opt_attr<double>("opacity");
|
|
if (opacity) style.set_opacity(*opacity);
|
|
|
|
optional<mapnik::boolean_type> image_filters_inflate = node.get_opt_attr<mapnik::boolean_type>("image-filters-inflate");
|
|
if (image_filters_inflate)
|
|
{
|
|
style.set_image_filters_inflate(*image_filters_inflate);
|
|
}
|
|
|
|
// image filters
|
|
optional<std::string> filters = node.get_opt_attr<std::string>("image-filters");
|
|
if (filters)
|
|
{
|
|
if (!parse_image_filters(*filters, style.image_filters())) {
|
|
throw config_error("failed to parse image-filters: '" + *filters + "'");
|
|
}
|
|
}
|
|
|
|
// direct image filters (applied directly on main image buffer
|
|
// TODO : consider creating a separate XML node e.g
|
|
// <ImageFilter name="myfilter" op="blur emboss"/>
|
|
//
|
|
optional<std::string> direct_filters = node.get_opt_attr<std::string>("direct-image-filters");
|
|
if (direct_filters)
|
|
{
|
|
if (!parse_image_filters(*direct_filters, style.direct_image_filters())) {
|
|
throw config_error("failed to parse direct-image-filters: '" + *direct_filters + "'");
|
|
}
|
|
}
|
|
|
|
style.reserve(node.size());
|
|
// rules
|
|
for (auto const& rule_ : node)
|
|
{
|
|
if (rule_.is("Rule"))
|
|
{
|
|
parse_rule(style, rule_);
|
|
}
|
|
}
|
|
|
|
if (!map.insert_style(name, std::move(style)))
|
|
{
|
|
boost::optional<const feature_type_style &> dupe = map.find_style(name);
|
|
if (strict_)
|
|
{
|
|
if (dupe)
|
|
{
|
|
throw config_error("duplicate style name");
|
|
}
|
|
throw config_error("failed to insert style to the map");
|
|
}
|
|
else
|
|
{
|
|
std::string s_err("failed to insert style '");
|
|
s_err += name + "' to the map";
|
|
if (dupe)
|
|
{
|
|
s_err += " since it was already added";
|
|
}
|
|
MAPNIK_LOG_ERROR(load_map) << "map_parser: " << s_err;
|
|
}
|
|
}
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(std::string("in style '") + name + "'", node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_fontset(Map & map, xml_node const& node)
|
|
{
|
|
std::string name("<missing name>");
|
|
try
|
|
{
|
|
name = node.get_attr<std::string>("name");
|
|
font_set fontset(name);
|
|
bool success = false;
|
|
for (auto const& n: node)
|
|
{
|
|
if (n.is("Font"))
|
|
{
|
|
if (parse_font(fontset, n))
|
|
{
|
|
success = true;
|
|
}
|
|
else
|
|
{
|
|
// https://github.com/mapnik/mapnik/issues/1791
|
|
MAPNIK_LOG_ERROR(fontset) << "warning: unable to find face-name '"
|
|
<< n.get_attr<std::string>("face-name","")
|
|
<< "' in FontSet '" << fontset.get_name() << "'";
|
|
}
|
|
}
|
|
}
|
|
|
|
// if not at least one face-name is valid
|
|
if (!success)
|
|
{
|
|
throw mapnik::config_error("no valid fonts could be loaded");
|
|
}
|
|
|
|
// XXX Hack because map object isn't accessible by text_symbolizer
|
|
// when it's parsed
|
|
fontsets_.emplace(name, fontset);
|
|
map.insert_fontset(name, std::move(fontset));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(std::string("in FontSet '") + name + "'", node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
bool map_parser::parse_font(font_set & fset, xml_node const& f)
|
|
{
|
|
optional<std::string> has_face_name = f.get_opt_attr<std::string>("face-name");
|
|
if (has_face_name)
|
|
{
|
|
std::string face_name = *has_face_name;
|
|
bool found = false;
|
|
auto itr = font_name_cache_.find(face_name);
|
|
if (itr != font_name_cache_.end())
|
|
{
|
|
found = itr->second;
|
|
}
|
|
else
|
|
{
|
|
found = freetype_engine::can_open(face_name,
|
|
font_library_,
|
|
font_file_mapping_,
|
|
freetype_engine::get_mapping());
|
|
font_name_cache_.emplace(face_name,found);
|
|
}
|
|
if (found)
|
|
{
|
|
fset.add_face_name(face_name);
|
|
return true;
|
|
}
|
|
else if (strict_)
|
|
{
|
|
throw config_error("Failed to find font face '" + face_name + "'");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
throw config_error("Must have 'face-name' set", f);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
template <typename Parent>
|
|
void map_parser::parse_layer(Parent & parent, xml_node const& node)
|
|
{
|
|
std::string name;
|
|
try
|
|
{
|
|
optional<mapnik::boolean_type> status = node.get_opt_attr<mapnik::boolean_type>("status");
|
|
|
|
// return early is status is off
|
|
if (status && !(*status)){
|
|
node.set_ignore(true);
|
|
return;
|
|
}
|
|
|
|
name = node.get_attr("name", std::string("Unnamed"));
|
|
|
|
// If no projection is given inherit from map
|
|
std::string srs = node.get_attr("srs", parent.srs());
|
|
try
|
|
{
|
|
// create throwaway projection object here to ensure it is valid
|
|
projection proj(srs,true);
|
|
}
|
|
catch (std::exception const& ex)
|
|
{
|
|
throw mapnik::config_error(ex.what());
|
|
}
|
|
layer lyr(name, srs);
|
|
|
|
|
|
if (status)
|
|
{
|
|
lyr.set_active(* status);
|
|
}
|
|
|
|
optional<double> minimum_scale_denom = node.get_opt_attr<double>("minimum-scale-denominator");
|
|
if (minimum_scale_denom)
|
|
{
|
|
lyr.set_minimum_scale_denominator(* minimum_scale_denom);
|
|
}
|
|
else // back compatibility: remove at Mapnik 4.x
|
|
{
|
|
optional<double> min_zoom = node.get_opt_attr<double>("minzoom");
|
|
if (min_zoom)
|
|
{
|
|
MAPNIK_LOG_ERROR(markers_symbolizer) << "'minzoom' is deprecated and will be removed in Mapnik 4.x, use 'minimum-scale-denominator' instead (encountered in layer " << name << ")";
|
|
lyr.set_minimum_scale_denominator(* min_zoom);
|
|
}
|
|
}
|
|
|
|
optional<double> maximum_scale_denom = node.get_opt_attr<double>("maximum-scale-denominator");
|
|
if (maximum_scale_denom)
|
|
{
|
|
lyr.set_maximum_scale_denominator(* maximum_scale_denom);
|
|
}
|
|
else // back compatibility: remove at Mapnik 4.x
|
|
{
|
|
optional<double> max_zoom = node.get_opt_attr<double>("maxzoom");
|
|
if (max_zoom)
|
|
{
|
|
MAPNIK_LOG_ERROR(markers_symbolizer) << "'maxzoom' is deprecated and will be removed in Mapnik 4.x, use 'maximum-scale-denominator' instead (encountered in layer " << name << ")";
|
|
lyr.set_maximum_scale_denominator(* max_zoom);
|
|
}
|
|
}
|
|
|
|
optional<mapnik::boolean_type> queryable = node.get_opt_attr<mapnik::boolean_type>("queryable");
|
|
if (queryable)
|
|
{
|
|
lyr.set_queryable(* queryable);
|
|
}
|
|
|
|
optional<mapnik::boolean_type> clear_cache =
|
|
node.get_opt_attr<mapnik::boolean_type>("clear-label-cache");
|
|
if (clear_cache)
|
|
{
|
|
lyr.set_clear_label_cache(* clear_cache);
|
|
}
|
|
|
|
optional<mapnik::boolean_type> cache_features =
|
|
node.get_opt_attr<mapnik::boolean_type>("cache-features");
|
|
if (cache_features)
|
|
{
|
|
lyr.set_cache_features(* cache_features);
|
|
}
|
|
|
|
optional<std::string> group_by =
|
|
node.get_opt_attr<std::string>("group-by");
|
|
if (group_by)
|
|
{
|
|
lyr.set_group_by(* group_by);
|
|
}
|
|
|
|
optional<int> buffer_size = node.get_opt_attr<int>("buffer-size");
|
|
if (buffer_size)
|
|
{
|
|
lyr.set_buffer_size(*buffer_size);
|
|
}
|
|
|
|
optional<std::string> maximum_extent = node.get_opt_attr<std::string>("maximum-extent");
|
|
if (maximum_extent)
|
|
{
|
|
box2d<double> box;
|
|
if (box.from_string(*maximum_extent))
|
|
{
|
|
lyr.set_maximum_extent(box);
|
|
}
|
|
else
|
|
{
|
|
std::string s_err("failed to parse Layer maximum-extent '");
|
|
s_err += *maximum_extent + "' for '" + name + "'";
|
|
if (strict_)
|
|
{
|
|
throw config_error(s_err);
|
|
}
|
|
else
|
|
{
|
|
MAPNIK_LOG_ERROR(load_map) << "map_parser: " << s_err;
|
|
}
|
|
}
|
|
}
|
|
|
|
// compositing
|
|
optional<std::string> comp_op_name = node.get_opt_attr<std::string>("comp-op");
|
|
if (comp_op_name)
|
|
{
|
|
optional<composite_mode_e> comp_op = comp_op_from_string(*comp_op_name);
|
|
if (comp_op)
|
|
{
|
|
lyr.set_comp_op(*comp_op);
|
|
}
|
|
else
|
|
{
|
|
throw config_error("failed to parse comp-op: '" + *comp_op_name + "'");
|
|
}
|
|
}
|
|
|
|
optional<double> opacity = node.get_opt_attr<double>("opacity");
|
|
if (opacity) lyr.set_opacity(*opacity);
|
|
|
|
for (auto const& child: node)
|
|
{
|
|
|
|
if (child.is("StyleName"))
|
|
{
|
|
std::string const& style_name = child.get_text();
|
|
if (style_name.empty())
|
|
{
|
|
std::string ss("StyleName is empty in Layer: '");
|
|
ss += lyr.name() + "'";
|
|
if (strict_)
|
|
{
|
|
throw config_error(ss);
|
|
}
|
|
else
|
|
{
|
|
MAPNIK_LOG_WARN(load_map) << "map_parser: " << ss;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
lyr.add_style(style_name);
|
|
}
|
|
}
|
|
else if (child.is("Datasource"))
|
|
{
|
|
parameters params;
|
|
optional<std::string> base = child.get_opt_attr<std::string>("base");
|
|
if(base)
|
|
{
|
|
std::map<std::string,parameters>::const_iterator base_itr = datasource_templates_.find(*base);
|
|
if (base_itr != datasource_templates_.end())
|
|
{
|
|
params = base_itr->second;
|
|
}
|
|
else
|
|
{
|
|
MAPNIK_LOG_ERROR(datasource) << "Datasource template '" << *base
|
|
<< "' not found for layer '" << name << "'";
|
|
}
|
|
}
|
|
|
|
for (auto const& n : child)
|
|
{
|
|
if (n.is("Parameter"))
|
|
{
|
|
params[n.get_attr<std::string>("name")] = n.get_text();
|
|
}
|
|
}
|
|
|
|
boost::optional<std::string> base_param = params.get<std::string>("base");
|
|
boost::optional<std::string> file_param = params.get<std::string>("file");
|
|
|
|
if (base_param)
|
|
{
|
|
params["base"] = ensure_relative_to_xml(base_param);
|
|
}
|
|
|
|
else if (file_param)
|
|
{
|
|
params["file"] = ensure_relative_to_xml(file_param);
|
|
}
|
|
|
|
//now we are ready to create datasource
|
|
try
|
|
{
|
|
std::shared_ptr<datasource> ds =
|
|
datasource_cache::instance().create(params);
|
|
lyr.set_datasource(ds);
|
|
}
|
|
catch (std::exception const& ex)
|
|
{
|
|
throw config_error(ex.what());
|
|
}
|
|
catch (...)
|
|
{
|
|
throw config_error("Unknown exception occurred attempting to create datasoure for layer '" + lyr.name() + "'");
|
|
}
|
|
}
|
|
else if (child.is("Layer"))
|
|
{
|
|
parse_layer(lyr, child);
|
|
}
|
|
}
|
|
parent.add_layer(std::move(lyr));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
if (!name.empty())
|
|
{
|
|
ex.append_context(std::string(" encountered during parsing of layer '") + name + "'", node);
|
|
}
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_rule(feature_type_style & style, xml_node const& node)
|
|
{
|
|
std::string name;
|
|
try
|
|
{
|
|
name = node.get_attr("name", std::string());
|
|
rule rule(name);
|
|
|
|
xml_node const* child = node.get_opt_child("Filter");
|
|
if (child)
|
|
{
|
|
rule.set_filter(child->get_value<expression_ptr>());
|
|
}
|
|
|
|
if (node.has_child("ElseFilter"))
|
|
{
|
|
rule.set_else(true);
|
|
}
|
|
|
|
if (node.has_child("AlsoFilter"))
|
|
{
|
|
rule.set_also(true);
|
|
}
|
|
|
|
child = node.get_opt_child("MinScaleDenominator");
|
|
if (child)
|
|
{
|
|
rule.set_min_scale(child->get_value<double>());
|
|
}
|
|
|
|
child = node.get_opt_child("MaxScaleDenominator");
|
|
if (child)
|
|
{
|
|
rule.set_max_scale(child->get_value<double>());
|
|
}
|
|
|
|
parse_symbolizers(rule, node);
|
|
style.add_rule(std::move(rule));
|
|
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
if (!name.empty())
|
|
{
|
|
ex.append_context(std::string("in rule '") + name + "'", node);
|
|
}
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_symbolizers(rule & rule, xml_node const & node)
|
|
{
|
|
rule.reserve(node.size());
|
|
for (auto const& sym_node : node)
|
|
{
|
|
switch (name_to_int(sym_node.name().c_str()))
|
|
{
|
|
case "PointSymbolizer"_case:
|
|
parse_point_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "LinePatternSymbolizer"_case:
|
|
parse_line_pattern_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "PolygonPatternSymbolizer"_case:
|
|
parse_polygon_pattern_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "TextSymbolizer"_case:
|
|
parse_text_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "ShieldSymbolizer"_case:
|
|
parse_shield_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "LineSymbolizer"_case:
|
|
parse_line_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "PolygonSymbolizer"_case:
|
|
parse_polygon_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "BuildingSymbolizer"_case:
|
|
parse_building_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "RasterSymbolizer"_case:
|
|
parse_raster_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "MarkersSymbolizer"_case:
|
|
parse_markers_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "GroupSymbolizer"_case:
|
|
parse_group_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "DebugSymbolizer"_case:
|
|
parse_debug_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
case "DotSymbolizer"_case:
|
|
parse_dot_symbolizer(rule, sym_node);
|
|
sym_node.set_processed(true);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_symbolizer_base(symbolizer_base &sym, xml_node const& node)
|
|
{
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::simplify_tolerance, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::smooth, node);
|
|
set_symbolizer_property<symbolizer_base,value_bool>(sym, keys::clip, node);
|
|
set_symbolizer_property<symbolizer_base,composite_mode_e>(sym, keys::comp_op, node);
|
|
set_symbolizer_property<symbolizer_base,transform_type>(sym, keys::geometry_transform, node);
|
|
set_symbolizer_property<symbolizer_base,simplify_algorithm_e>(sym, keys::simplify_algorithm, node);
|
|
set_symbolizer_property<symbolizer_base,smooth_algorithm_enum>(sym, keys::smooth_algorithm, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::extend, node);
|
|
}
|
|
|
|
void map_parser::parse_point_symbolizer(rule & rule, xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
optional<std::string> file = node.get_opt_attr<std::string>("file");
|
|
optional<std::string> base = node.get_opt_attr<std::string>("base");
|
|
|
|
point_symbolizer sym;
|
|
parse_symbolizer_base(sym, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::opacity, node);
|
|
set_symbolizer_property<symbolizer_base,value_bool>(sym, keys::allow_overlap, node);
|
|
set_symbolizer_property<symbolizer_base,value_bool>(sym, keys::ignore_placement, node);
|
|
set_symbolizer_property<symbolizer_base,point_placement_enum>(sym, keys::point_placement_type, node);
|
|
set_symbolizer_property<symbolizer_base,transform_type>(sym, keys::image_transform, node);
|
|
if (file && !file->empty())
|
|
{
|
|
if(base)
|
|
{
|
|
std::map<std::string,std::string>::const_iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
*file = itr->second + "/" + *file;
|
|
}
|
|
}
|
|
*file = ensure_relative_to_xml(file);
|
|
std::string filename = *file;
|
|
ensure_exists(filename);
|
|
put(sym, keys::file, parse_path(filename));
|
|
}
|
|
|
|
rule.append(std::move(sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_dot_symbolizer(rule & rule, xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
dot_symbolizer sym;
|
|
set_symbolizer_property<symbolizer_base,color>(sym, keys::fill, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::opacity, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::width, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::height, node);
|
|
set_symbolizer_property<symbolizer_base,composite_mode_e>(sym, keys::comp_op, node);
|
|
rule.append(std::move(sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_markers_symbolizer(rule & rule, xml_node const& node)
|
|
{
|
|
try
|
|
{
|
|
std::string filename("");
|
|
optional<std::string> file = node.get_opt_attr<std::string>("file");
|
|
optional<std::string> base = node.get_opt_attr<std::string>("base");
|
|
|
|
if (file && !file->empty())
|
|
{
|
|
if (base)
|
|
{
|
|
std::map<std::string,std::string>::const_iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
*file = itr->second + "/" + *file;
|
|
}
|
|
}
|
|
|
|
filename = ensure_relative_to_xml(file);
|
|
}
|
|
|
|
optional<std::string> marker_type = node.get_opt_attr<std::string>("marker-type");
|
|
if (marker_type)
|
|
{
|
|
// TODO - revisit whether to officially deprecate marker-type
|
|
// https://github.com/mapnik/mapnik/issues/1427
|
|
//MAPNIK_LOG_WARN(markers_symbolizer) << "'marker-type' is deprecated and will be removed in Mapnik 3.x, use file='shape://<type>' to specify known svg shapes";
|
|
// back compatibility with Mapnik 2.0.0
|
|
if (!marker_type->empty() && filename.empty())
|
|
{
|
|
if (*marker_type == "ellipse")
|
|
{
|
|
filename = marker_cache::instance().known_svg_prefix_ + "ellipse";
|
|
}
|
|
else if (*marker_type == "arrow")
|
|
{
|
|
filename = marker_cache::instance().known_svg_prefix_ + "arrow";
|
|
}
|
|
}
|
|
}
|
|
|
|
markers_symbolizer sym;
|
|
parse_symbolizer_base(sym, node);
|
|
if (!filename.empty())
|
|
{
|
|
ensure_exists(filename);
|
|
put(sym,keys::file, parse_path(filename));
|
|
}
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::opacity, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::fill_opacity, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::spacing, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::max_error, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::offset, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::width, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::height, node);
|
|
set_symbolizer_property<symbolizer_base,value_bool>(sym, keys::allow_overlap, node);
|
|
set_symbolizer_property<symbolizer_base,value_bool>(sym, keys::avoid_edges, node);
|
|
set_symbolizer_property<symbolizer_base,value_bool>(sym, keys::ignore_placement, node);
|
|
set_symbolizer_property<symbolizer_base,color>(sym, keys::fill, node);
|
|
set_symbolizer_property<symbolizer_base,transform_type>(sym, keys::image_transform, node);
|
|
set_symbolizer_property<symbolizer_base,marker_placement_enum>(sym, keys::markers_placement_type, node);
|
|
set_symbolizer_property<symbolizer_base,marker_multi_policy_enum>(sym, keys::markers_multipolicy, node);
|
|
set_symbolizer_property<symbolizer_base,direction_enum>(sym, keys::direction, node);
|
|
parse_stroke(sym,node);
|
|
rule.append(std::move(sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_line_pattern_symbolizer(rule & rule, xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
std::string file = node.get_attr<std::string>("file");
|
|
if (file.empty())
|
|
{
|
|
throw config_error("empty file attribute");
|
|
}
|
|
|
|
optional<std::string> base = node.get_opt_attr<std::string>("base");
|
|
|
|
if(base)
|
|
{
|
|
std::map<std::string,std::string>::const_iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
file = itr->second + "/" + file;
|
|
}
|
|
}
|
|
|
|
file = ensure_relative_to_xml(file);
|
|
ensure_exists(file);
|
|
line_pattern_symbolizer sym;
|
|
parse_symbolizer_base(sym, node);
|
|
put(sym, keys::file, parse_path(file));
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::opacity, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::offset, node);
|
|
set_symbolizer_property<symbolizer_base,transform_type>(sym, keys::image_transform, node);
|
|
set_symbolizer_property<symbolizer_base,value_double>(sym, keys::stroke_miterlimit, node);
|
|
set_symbolizer_property<symbolizer_base,value_double>(sym, keys::stroke_width, node);
|
|
set_symbolizer_property<symbolizer_base,line_join_enum>(sym, keys::stroke_linejoin, node);
|
|
set_symbolizer_property<symbolizer_base,line_cap_enum>(sym, keys::stroke_linecap, node);
|
|
set_symbolizer_property<symbolizer_base,dash_array>(sym, keys::stroke_dasharray, node);
|
|
set_symbolizer_property<symbolizer_base,line_pattern_enum>(sym, keys::line_pattern, node);
|
|
set_symbolizer_property<symbolizer_base,pattern_alignment_enum>(sym, keys::alignment, node);
|
|
rule.append(std::move(sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_polygon_pattern_symbolizer(rule & rule,
|
|
xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
std::string file = node.get_attr<std::string>("file");
|
|
|
|
if (file.empty())
|
|
{
|
|
throw config_error("empty file attribute");
|
|
}
|
|
|
|
optional<std::string> base = node.get_opt_attr<std::string>("base");
|
|
|
|
if (base)
|
|
{
|
|
std::map<std::string,std::string>::const_iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
file = itr->second + "/" + file;
|
|
}
|
|
}
|
|
|
|
file = ensure_relative_to_xml(file);
|
|
ensure_exists(file);
|
|
polygon_pattern_symbolizer sym;
|
|
parse_symbolizer_base(sym, node);
|
|
put(sym, keys::file, parse_path(file));
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::opacity, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::gamma, node);
|
|
set_symbolizer_property<symbolizer_base,transform_type>(sym, keys::image_transform, node);
|
|
set_symbolizer_property<symbolizer_base,pattern_alignment_enum>(sym, keys::alignment, node);
|
|
set_symbolizer_property<symbolizer_base,gamma_method_enum>(sym, keys::gamma_method, node);
|
|
rule.append(std::move(sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_text_symbolizer(rule & rule, xml_node const& node)
|
|
{
|
|
try
|
|
{
|
|
text_placements_ptr placements;
|
|
optional<std::string> placement_type = node.get_opt_attr<std::string>("placement-type");
|
|
if (placement_type)
|
|
{
|
|
placements = placements::registry::instance().from_xml(*placement_type, node, fontsets_, false);
|
|
}
|
|
else
|
|
{
|
|
placements = std::make_shared<text_placements_dummy>();
|
|
placements->defaults.from_xml(node, fontsets_, false);
|
|
}
|
|
if (placements)
|
|
{
|
|
if (strict_ && !placements->defaults.format_defaults.fontset)
|
|
{
|
|
ensure_font_face(placements->defaults.format_defaults.face_name);
|
|
}
|
|
text_symbolizer sym;
|
|
parse_symbolizer_base(sym, node);
|
|
put<text_placements_ptr>(sym, keys::text_placements_, placements);
|
|
set_symbolizer_property<symbolizer_base,composite_mode_e>(sym, keys::halo_comp_op, node);
|
|
set_symbolizer_property<symbolizer_base,halo_rasterizer_enum>(sym, keys::halo_rasterizer, node);
|
|
set_symbolizer_property<symbolizer_base,transform_type>(sym, keys::halo_transform, node);
|
|
set_symbolizer_property<symbolizer_base,value_double>(sym, keys::offset, node);
|
|
rule.append(std::move(sym));
|
|
}
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_shield_symbolizer(rule & rule, xml_node const& node)
|
|
{
|
|
try
|
|
{
|
|
text_placements_ptr placements;
|
|
optional<std::string> placement_type = node.get_opt_attr<std::string>("placement-type");
|
|
if (placement_type)
|
|
{
|
|
placements = placements::registry::instance().from_xml(*placement_type, node, fontsets_, true);
|
|
if (!placements)
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
placements = std::make_shared<text_placements_dummy>();
|
|
placements->defaults.from_xml(node, fontsets_, true);
|
|
}
|
|
if (strict_ &&
|
|
!placements->defaults.format_defaults.fontset)
|
|
{
|
|
ensure_font_face(placements->defaults.format_defaults.face_name);
|
|
}
|
|
|
|
shield_symbolizer sym;
|
|
parse_symbolizer_base(sym, node);
|
|
put<text_placements_ptr>(sym, keys::text_placements_, placements);
|
|
set_symbolizer_property<symbolizer_base,transform_type>(sym, keys::image_transform, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::shield_dx, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::shield_dy, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::opacity, node);
|
|
set_symbolizer_property<symbolizer_base,value_bool>(sym, keys::unlock_image, node);
|
|
set_symbolizer_property<symbolizer_base,value_double>(sym, keys::offset, node);
|
|
|
|
std::string file = node.get_attr<std::string>("file");
|
|
if (file.empty())
|
|
{
|
|
throw config_error("empty file attribute");
|
|
}
|
|
|
|
optional<std::string> base = node.get_opt_attr<std::string>("base");
|
|
if(base)
|
|
{
|
|
std::map<std::string,std::string>::const_iterator itr = file_sources_.find(*base);
|
|
if (itr!=file_sources_.end())
|
|
{
|
|
file = itr->second + "/" + file;
|
|
}
|
|
}
|
|
|
|
// no_text - removed property in 2.1.x that used to have a purpose
|
|
// before you could provide an expression with an empty string
|
|
optional<mapnik::boolean_type> no_text = node.get_opt_attr<mapnik::boolean_type>("no-text");
|
|
if (no_text)
|
|
{
|
|
MAPNIK_LOG_ERROR(shield_symbolizer) << "'no-text' is deprecated and will be removed in Mapnik 3.x, to create a ShieldSymbolizer without text just provide an element like: \"<ShieldSymbolizer ... />' '</>\"";
|
|
// FIXME
|
|
// if (*no_text)
|
|
// put(shield_symbol, "no-text", set_name(parse_expression("' '"));
|
|
}
|
|
|
|
file = ensure_relative_to_xml(file);
|
|
ensure_exists(file);
|
|
put(sym, keys::file , parse_path(file));
|
|
optional<halo_rasterizer_e> halo_rasterizer_ = node.get_opt_attr<halo_rasterizer_e>("halo-rasterizer");
|
|
if (halo_rasterizer_) put(sym, keys::halo_rasterizer, halo_rasterizer_enum(*halo_rasterizer_));
|
|
rule.append(std::move(sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_stroke(symbolizer_base & sym, xml_node const & node)
|
|
{
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::stroke_gamma, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::stroke_dashoffset, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::stroke_miterlimit, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::stroke_width, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::stroke_opacity, node);
|
|
set_symbolizer_property<symbolizer_base,color>(sym, keys::stroke, node);
|
|
set_symbolizer_property<symbolizer_base,line_join_enum>(sym, keys::stroke_linejoin, node);
|
|
set_symbolizer_property<symbolizer_base,line_cap_enum>(sym, keys::stroke_linecap, node);
|
|
set_symbolizer_property<symbolizer_base,gamma_method_enum>(sym, keys::stroke_gamma_method, node);
|
|
set_symbolizer_property<symbolizer_base,dash_array>(sym, keys::stroke_dasharray, node);
|
|
}
|
|
|
|
void map_parser::parse_line_symbolizer(rule & rule, xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
line_symbolizer sym;
|
|
parse_symbolizer_base(sym, node);
|
|
parse_stroke(sym, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::offset, node);
|
|
set_symbolizer_property<symbolizer_base,line_rasterizer_enum>(sym, keys::line_rasterizer, node);
|
|
rule.append(std::move(sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_polygon_symbolizer(rule & rule, xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
polygon_symbolizer sym;
|
|
parse_symbolizer_base(sym, node);
|
|
set_symbolizer_property<symbolizer_base,color>(sym, keys::fill, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::fill_opacity, node);
|
|
set_symbolizer_property<symbolizer_base,double>(sym, keys::gamma, node);
|
|
set_symbolizer_property<symbolizer_base,gamma_method_enum>(sym, keys::gamma_method, node);
|
|
rule.append(std::move(sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_building_symbolizer(rule & rule, xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
building_symbolizer building_sym;
|
|
parse_symbolizer_base(building_sym, node);
|
|
set_symbolizer_property<building_symbolizer,color>(building_sym, keys::fill, node);
|
|
set_symbolizer_property<building_symbolizer,double>(building_sym, keys::fill_opacity, node);
|
|
// TODO
|
|
optional<expression_ptr> height = node.get_opt_attr<expression_ptr>("height");
|
|
if (height) put(building_sym, keys::height, *height);
|
|
rule.append(std::move(building_sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_raster_symbolizer(rule & rule, xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
raster_symbolizer raster_sym;
|
|
parse_symbolizer_base(raster_sym, node);
|
|
// mode
|
|
optional<std::string> mode = node.get_opt_attr<std::string>("mode");
|
|
if (mode)
|
|
{
|
|
std::string mode_string = *mode;
|
|
if (mode_string.find('_') != std::string::npos)
|
|
{
|
|
MAPNIK_LOG_ERROR(raster_symbolizer) << "'mode' values using \"_\" are deprecated and will be removed in Mapnik 3.x, use \"-\"instead";
|
|
std::replace(mode_string.begin(), mode_string.end(), '_', '-');
|
|
}
|
|
put(raster_sym, keys::mode, mode_string);
|
|
}
|
|
|
|
// scaling
|
|
optional<std::string> scaling = node.get_opt_attr<std::string>("scaling");
|
|
if (scaling)
|
|
{
|
|
std::string scaling_method = *scaling;
|
|
if (scaling_method == "fast")
|
|
{
|
|
MAPNIK_LOG_ERROR(raster_symbolizer) << "'scaling' value of 'fast' is deprecated and will be removed in Mapnik 3.x, use 'near' with Mapnik >= 2.1.x";
|
|
put(raster_sym, keys::scaling, SCALING_NEAR);
|
|
}
|
|
else
|
|
{
|
|
boost::optional<scaling_method_e> method = scaling_method_from_string(scaling_method);
|
|
if (method)
|
|
{
|
|
put(raster_sym, keys::scaling, *method);
|
|
}
|
|
else
|
|
{
|
|
throw config_error("failed to parse 'scaling': '" + *scaling + "'");
|
|
}
|
|
}
|
|
}
|
|
|
|
// opacity
|
|
optional<double> opacity = node.get_opt_attr<double>("opacity");
|
|
if (opacity) put(raster_sym, keys::opacity, *opacity);
|
|
|
|
// filter factor
|
|
optional<double> filter_factor = node.get_opt_attr<double>("filter-factor");
|
|
if (filter_factor) put(raster_sym, keys::filter_factor, *filter_factor);
|
|
|
|
// mesh-size
|
|
optional<unsigned> mesh_size = node.get_opt_attr<unsigned>("mesh-size");
|
|
if (mesh_size) put<value_integer>(raster_sym, keys::mesh_size, *mesh_size);
|
|
|
|
// premultiplied status of image
|
|
optional<mapnik::boolean_type> premultiplied = node.get_opt_attr<mapnik::boolean_type>("premultiplied");
|
|
if (premultiplied) put(raster_sym, keys::premultiplied, bool(*premultiplied));
|
|
|
|
bool found_colorizer = false;
|
|
for ( auto const& css : node)
|
|
{
|
|
if (css.is("RasterColorizer"))
|
|
{
|
|
found_colorizer = true;
|
|
raster_colorizer_ptr colorizer = std::make_shared<raster_colorizer>();
|
|
if (parse_raster_colorizer(colorizer, css))
|
|
put(raster_sym, keys::colorizer, colorizer);
|
|
}
|
|
}
|
|
//look for properties one level up
|
|
if (!found_colorizer)
|
|
{
|
|
raster_colorizer_ptr colorizer = std::make_shared<raster_colorizer>();
|
|
if (parse_raster_colorizer(colorizer, node))
|
|
put(raster_sym, keys::colorizer, colorizer);
|
|
}
|
|
rule.append(std::move(raster_sym));
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_group_symbolizer(rule & rule, xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
group_symbolizer symbol;
|
|
parse_symbolizer_base(symbol, node);
|
|
group_symbolizer_properties_ptr prop = std::make_shared<group_symbolizer_properties>();
|
|
set_symbolizer_property<symbolizer_base, value_integer>(symbol, keys::num_columns, node);
|
|
set_symbolizer_property<symbolizer_base, value_integer>(symbol, keys::start_column, node);
|
|
set_symbolizer_property<symbolizer_base, expression_ptr>(symbol, keys::repeat_key, node);
|
|
text_placements_ptr placements = std::make_shared<text_placements_dummy>();
|
|
placements->defaults.text_properties_from_xml(node);
|
|
put<text_placements_ptr>(symbol, keys::text_placements_, placements);
|
|
|
|
size_t layout_count = 0;
|
|
for (auto const& child_node : node)
|
|
{
|
|
if (child_node.is("GroupRule"))
|
|
{
|
|
parse_group_rule(*prop, child_node);
|
|
child_node.set_processed(true);
|
|
}
|
|
else if (child_node.is("SimpleLayout"))
|
|
{
|
|
parse_simple_layout(*prop, child_node);
|
|
child_node.set_processed(true);
|
|
++layout_count;
|
|
}
|
|
else if (child_node.is("PairLayout"))
|
|
{
|
|
parse_pair_layout(*prop, child_node);
|
|
child_node.set_processed(true);
|
|
++layout_count;
|
|
}
|
|
if (layout_count > 1)
|
|
{
|
|
throw config_error("Provide only one layout for a GroupSymbolizer.");
|
|
}
|
|
}
|
|
put(symbol, keys::group_properties, prop);
|
|
rule.append(std::move(symbol));
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_debug_symbolizer(rule & rule, xml_node const & node)
|
|
{
|
|
debug_symbolizer symbol;
|
|
parse_symbolizer_base(symbol, node);
|
|
// TODO
|
|
optional<debug_symbolizer_mode_e> mode = node.get_opt_attr<debug_symbolizer_mode_e>("mode");
|
|
if (mode) put(symbol, keys::mode, debug_symbolizer_mode_enum(*mode));
|
|
rule.append(std::move(symbol));
|
|
}
|
|
|
|
bool map_parser::parse_raster_colorizer(raster_colorizer_ptr const& rc,
|
|
xml_node const& node)
|
|
{
|
|
bool found_stops = false;
|
|
try
|
|
{
|
|
// mode
|
|
colorizer_mode default_mode =
|
|
node.get_attr<colorizer_mode>("default-mode", COLORIZER_LINEAR);
|
|
|
|
if(default_mode == COLORIZER_INHERIT)
|
|
{
|
|
throw config_error("RasterColorizer mode must not be INHERIT. ");
|
|
}
|
|
rc->set_default_mode(default_mode);
|
|
|
|
// default colour
|
|
optional<color> default_color = node.get_opt_attr<color>("default-color");
|
|
if (default_color)
|
|
{
|
|
rc->set_default_color(*default_color);
|
|
}
|
|
|
|
// epsilon
|
|
optional<float> eps = node.get_opt_attr<float>("epsilon");
|
|
if (eps)
|
|
{
|
|
if(*eps < 0)
|
|
{
|
|
throw config_error("RasterColorizer epsilon must be > 0. ");
|
|
}
|
|
rc->set_epsilon(*eps);
|
|
}
|
|
|
|
float maximumValue = -std::numeric_limits<float>::max();
|
|
for (auto const& n : node)
|
|
{
|
|
if (n.is("stop"))
|
|
{
|
|
found_stops = true;
|
|
// colour is optional.
|
|
optional<color> stopcolor = n.get_opt_attr<color>("color");
|
|
if (!stopcolor)
|
|
{
|
|
*stopcolor = *default_color;
|
|
}
|
|
|
|
// mode default to INHERIT
|
|
colorizer_mode mode = n.get_attr<colorizer_mode>("mode", COLORIZER_INHERIT);
|
|
|
|
// value is required, and it must be bigger than the previous
|
|
optional<float> val = n.get_opt_attr<float>("value");
|
|
|
|
if (!val)
|
|
{
|
|
throw config_error("stop tag missing value");
|
|
}
|
|
|
|
if (val < maximumValue)
|
|
{
|
|
throw config_error("stop tag values must be in ascending order");
|
|
}
|
|
maximumValue = *val;
|
|
|
|
optional<std::string> label = n.get_opt_attr<std::string>("label");
|
|
|
|
//append the stop
|
|
colorizer_stop stop;
|
|
stop.set_color(*stopcolor);
|
|
stop.set_mode(mode);
|
|
stop.set_value(*val);
|
|
if (label)
|
|
{
|
|
stop.set_label(*label);
|
|
}
|
|
|
|
rc->add_stop(stop);
|
|
}
|
|
}
|
|
}
|
|
catch (config_error const& ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
return found_stops;
|
|
}
|
|
|
|
void map_parser::parse_group_rule(group_symbolizer_properties & prop, xml_node const & node)
|
|
{
|
|
try
|
|
{
|
|
rule fake_rule;
|
|
expression_ptr filter, repeat_key;
|
|
|
|
xml_node const *filter_child = node.get_opt_child("Filter"),
|
|
*rptkey_child = node.get_opt_child("RepeatKey");
|
|
|
|
if (filter_child)
|
|
{
|
|
filter = filter_child->get_value<expression_ptr>();
|
|
}
|
|
else
|
|
{
|
|
filter = std::make_shared<mapnik::expr_node>(true);
|
|
}
|
|
|
|
if (rptkey_child)
|
|
{
|
|
repeat_key = rptkey_child->get_value<expression_ptr>();
|
|
}
|
|
|
|
group_rule_ptr rule = std::make_shared<group_rule>(filter, repeat_key);
|
|
|
|
parse_symbolizers(fake_rule, node);
|
|
|
|
for (auto const& sym : fake_rule)
|
|
{
|
|
rule->append(std::move(sym));
|
|
}
|
|
|
|
prop.add_rule(std::move(rule));
|
|
}
|
|
catch (const config_error & ex)
|
|
{
|
|
ex.append_context(node);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void map_parser::parse_simple_layout(group_symbolizer_properties & prop, xml_node const & node)
|
|
{
|
|
simple_row_layout layout;
|
|
|
|
optional<double> item_margin = node.get_opt_attr<double>("item-margin");
|
|
if (item_margin) layout.set_item_margin(*item_margin);
|
|
|
|
prop.set_layout(std::move(layout));
|
|
}
|
|
|
|
void map_parser::parse_pair_layout(group_symbolizer_properties & prop, xml_node const & node)
|
|
{
|
|
pair_layout layout;
|
|
|
|
optional<double> item_margin = node.get_opt_attr<double>("item-margin");
|
|
if (item_margin) layout.set_item_margin(*item_margin);
|
|
|
|
optional<double> max_difference = node.get_opt_attr<double>("max-difference");
|
|
if (max_difference) layout.set_max_difference(*max_difference);
|
|
|
|
prop.set_layout(std::move(layout));
|
|
}
|
|
|
|
void map_parser::ensure_font_face(std::string const& face_name)
|
|
{
|
|
bool found = false;
|
|
auto itr = font_name_cache_.find(face_name);
|
|
if (itr != font_name_cache_.end())
|
|
{
|
|
found = itr->second;
|
|
}
|
|
else
|
|
{
|
|
found = freetype_engine::can_open(face_name,
|
|
font_library_,
|
|
font_file_mapping_,
|
|
freetype_engine::get_mapping());
|
|
font_name_cache_.emplace(face_name,found);
|
|
}
|
|
if (!found)
|
|
{
|
|
throw config_error("Failed to find font face '" +
|
|
face_name + "'");
|
|
}
|
|
}
|
|
|
|
std::string map_parser::ensure_relative_to_xml(boost::optional<std::string> const& opt_path)
|
|
{
|
|
if (marker_cache::instance().is_uri(*opt_path))
|
|
return *opt_path;
|
|
|
|
if (!xml_base_path_.empty())
|
|
{
|
|
std::string starting_path = *opt_path;
|
|
if (mapnik::util::is_relative(starting_path))
|
|
{
|
|
return mapnik::util::make_absolute(starting_path,xml_base_path_);
|
|
}
|
|
}
|
|
return *opt_path;
|
|
}
|
|
|
|
void map_parser::ensure_exists(std::string const& file_path)
|
|
{
|
|
if (marker_cache::instance().is_uri(file_path))
|
|
return;
|
|
// validate that the filename exists if it is not a dynamic PathExpression
|
|
if (file_path.find('[') == std::string::npos && file_path.find(']') == std::string::npos)
|
|
{
|
|
if (!mapnik::util::exists(file_path))
|
|
{
|
|
throw mapnik::config_error("file could not be found: '" + file_path + "'");
|
|
}
|
|
}
|
|
}
|
|
|
|
void map_parser::find_unused_nodes(xml_node const& root)
|
|
{
|
|
std::string error_message;
|
|
find_unused_nodes_recursive(root, error_message);
|
|
if (!error_message.empty())
|
|
{
|
|
std::string msg("Unable to process some data while parsing '" + filename_ + "':" + error_message);
|
|
if (strict_)
|
|
{
|
|
throw config_error(msg);
|
|
}
|
|
else
|
|
{
|
|
MAPNIK_LOG_ERROR(load_map) << msg;
|
|
}
|
|
}
|
|
}
|
|
|
|
void map_parser::find_unused_nodes_recursive(xml_node const& node, std::string & error_message)
|
|
{
|
|
if (!node.ignore())
|
|
{
|
|
if (!node.processed())
|
|
{
|
|
if (node.is_text())
|
|
{
|
|
error_message += "\n* text '" + node.text();
|
|
}
|
|
else
|
|
{
|
|
error_message += "\n* node '" + node.name();
|
|
}
|
|
error_message += "' at line " + node.line_to_string();
|
|
|
|
return; //All attributes and children are automatically unprocessed, too.
|
|
}
|
|
xml_node::attribute_map const& attrs = node.get_attributes();
|
|
for (auto const& attr : attrs)
|
|
{
|
|
if (!attr.second.processed)
|
|
{
|
|
error_message += "\n* attribute '" + attr.first +
|
|
"' with value '" + attr.second.value +
|
|
"' at line " + node.line_to_string();
|
|
}
|
|
}
|
|
for (auto const& child_node : node)
|
|
{
|
|
find_unused_nodes_recursive(child_node, error_message);
|
|
}
|
|
}
|
|
}
|
|
|
|
void map_parser::check_styles(Map const & map)
|
|
{
|
|
for (auto const & layer : map.layers())
|
|
{
|
|
for (auto const & style : layer.styles())
|
|
{
|
|
if (!map.find_style(style))
|
|
{
|
|
throw config_error("Unable to process some data while parsing '" + filename_ +
|
|
"': Style '" + style + "' required for layer '" + layer.name() + "'.");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
} // end of namespace mapnik
|