113 lines
3.2 KiB
C++
113 lines
3.2 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) 2012 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/text/placements/list.hpp>
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#include <mapnik/xml_node.hpp>
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#include <mapnik/make_unique.hpp>
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//boost
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#include <boost/property_tree/ptree.hpp>
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namespace mapnik
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{
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bool text_placement_info_list::next()
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{
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if (state == 0)
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{
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properties = parent_->defaults;
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}
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else
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{
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if (state > parent_->list_.size()) return false;
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properties = parent_->list_[state-1];
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}
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++state;
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return true;
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}
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text_symbolizer_properties & text_placements_list::add()
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{
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if (list_.size())
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{
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text_symbolizer_properties & last = list_.back();
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list_.push_back(last); //Preinitialize with old values FIXME
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}
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else
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{
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list_.push_back(defaults);
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}
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return list_.back();
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}
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text_symbolizer_properties & text_placements_list::get(unsigned i)
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{
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return list_[i];
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}
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text_placement_info_ptr text_placements_list::get_placement_info(double scale_factor) const
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{
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return std::make_unique<text_placement_info_list>(this, scale_factor);
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}
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text_placements_list::text_placements_list()
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: text_placements(),
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list_(0) {}
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void text_placements_list::add_expressions(expression_set & output) const
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{
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defaults.add_expressions(output);
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for (auto & prop : list_)
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{
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prop.add_expressions(output);
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}
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}
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unsigned text_placements_list::size() const
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{
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return list_.size();
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}
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text_placements_ptr text_placements_list::from_xml(xml_node const& xml, fontset_map const& fontsets)
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{
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using boost::property_tree::ptree;
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text_placements_list *list = new text_placements_list;
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text_placements_ptr ptr = text_placements_ptr(list);
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list->defaults.from_xml(xml, fontsets);
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xml_node::const_iterator itr = xml.begin();
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xml_node::const_iterator end = xml.end();
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for( ;itr != end; ++itr)
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{
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if (itr->is_text() || !itr->is("Placement")) continue;
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text_symbolizer_properties & p = list->add();
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//p.format = std::make_shared<char_properties>(*(p.format)); //Make a deep copy -- FIXME
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//TODO: This needs a real copy constructor for text_symbolizer_properties
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p.from_xml(*itr, fontsets);
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//TODO: if (strict_ && !p.format.fontset.size())
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// ensure_font_face(p.format.face_name);
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}
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return ptr;
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}
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} //ns mapnik
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