159 lines
6.2 KiB
C++
159 lines
6.2 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) 2010 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/python.hpp>
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#include <mapnik/graphics.hpp>
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#include <mapnik/value_error.hpp>
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#include <mapnik/image_util.hpp>
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#include <mapnik/markers_symbolizer.hpp>
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#include <mapnik/parse_path.hpp>
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#include "mapnik_svg.hpp"
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#include "mapnik_enumeration.hpp"
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#include <mapnik/marker_cache.hpp> // for known_svg_prefix_
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using mapnik::markers_symbolizer;
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using mapnik::symbolizer_with_image;
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using mapnik::path_processor_type;
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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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std::string get_filename(mapnik::markers_symbolizer const& symbolizer)
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{
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return path_processor_type::to_string(*symbolizer.get_filename());
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}
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void set_filename(mapnik::markers_symbolizer & symbolizer, std::string const& file_expr)
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{
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symbolizer.set_filename(parse_path(file_expr));
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}
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void set_marker_type(mapnik::markers_symbolizer & symbolizer, std::string const& marker_type)
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{
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std::string filename;
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if (marker_type == "ellipse")
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{
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filename = mapnik::marker_cache::instance().known_svg_prefix_ + "ellipse";
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}
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else if (marker_type == "arrow")
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{
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filename = mapnik::marker_cache::instance().known_svg_prefix_ + "arrow";
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}
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else
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{
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throw mapnik::value_error("Unknown marker-type: '" + marker_type + "'");
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}
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symbolizer.set_filename(parse_path(filename));
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}
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}
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// https://github.com/mapnik/mapnik/issues/1367
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PyObject* get_fill_opacity_impl(markers_symbolizer & sym)
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{
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boost::optional<float> fill_opacity = sym.get_fill_opacity();
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if (fill_opacity)
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return ::PyFloat_FromDouble(*fill_opacity);
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Py_RETURN_NONE;
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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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class_<markers_symbolizer>("MarkersSymbolizer",
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init<>("Default Markers Symbolizer - circle"))
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.def (init<mapnik::path_expression_ptr>("<path expression ptr>"))
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.add_property("filename",
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&get_filename,
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&set_filename)
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.add_property("marker_type",
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&get_filename,
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&set_marker_type)
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.add_property("allow_overlap",
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&markers_symbolizer::get_allow_overlap,
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&markers_symbolizer::set_allow_overlap)
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.add_property("spacing",
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&markers_symbolizer::get_spacing,
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&markers_symbolizer::set_spacing)
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.add_property("max_error",
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&markers_symbolizer::get_max_error,
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&markers_symbolizer::set_max_error)
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.add_property("opacity",
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&markers_symbolizer::get_opacity,
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&markers_symbolizer::set_opacity,
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"Set/get the overall opacity")
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.add_property("fill_opacity",
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&get_fill_opacity_impl,
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&markers_symbolizer::set_fill_opacity,
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"Set/get the fill opacity")
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.add_property("ignore_placement",
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&markers_symbolizer::get_ignore_placement,
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&markers_symbolizer::set_ignore_placement)
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.add_property("transform",
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&mapnik::get_svg_transform<markers_symbolizer>,
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&mapnik::set_svg_transform<markers_symbolizer>)
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.add_property("width",
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make_function(&markers_symbolizer::get_width,
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return_value_policy<copy_const_reference>()),
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&markers_symbolizer::set_width,
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"Set/get the marker width")
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.add_property("height",
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make_function(&markers_symbolizer::get_height,
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return_value_policy<copy_const_reference>()),
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&markers_symbolizer::set_height,
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"Set/get the marker height")
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.add_property("fill",
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&markers_symbolizer::get_fill,
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&markers_symbolizer::set_fill,
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"Set/get the marker fill color")
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.add_property("stroke",
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&markers_symbolizer::get_stroke,
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&markers_symbolizer::set_stroke,
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"Set/get the marker stroke (outline)")
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.add_property("placement",
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&markers_symbolizer::get_marker_placement,
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&markers_symbolizer::set_marker_placement,
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"Set/get the marker placement")
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.add_property("comp_op",
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&markers_symbolizer::comp_op,
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&markers_symbolizer::set_comp_op,
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"Set/get the marker comp-op")
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.add_property("clip",
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&markers_symbolizer::clip,
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&markers_symbolizer::set_clip,
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"Set/get the marker geometry's clipping status")
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.add_property("smooth",
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&markers_symbolizer::smooth,
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&markers_symbolizer::set_smooth,
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"Set/get the marker geometry's smooth value")
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;
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}
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