99 lines
3.5 KiB
C++
99 lines
3.5 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) 2006 Artem Pavlenko, Jean-Francois Doyon
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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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//$Id$
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#include <boost/python.hpp>
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#include <mapnik/graphics.hpp>
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#include <mapnik/image_util.hpp>
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#include <mapnik/point_symbolizer.hpp>
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#include <mapnik/path_expression_grammar.hpp>
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using mapnik::point_symbolizer;
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using mapnik::symbolizer_with_image;
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using mapnik::path_processor_type;
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struct point_symbolizer_pickle_suite : boost::python::pickle_suite
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{
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static boost::python::tuple
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getinitargs(const point_symbolizer& p)
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{
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std::string filename = path_processor_type::to_string(*p.get_filename());
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return boost::python::make_tuple(filename,mapnik::guess_type(filename));
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}
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static boost::python::tuple
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getstate(const point_symbolizer& p)
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{
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return boost::python::make_tuple(p.get_allow_overlap(),p.get_opacity());
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}
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static void
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setstate (point_symbolizer& p, boost::python::tuple state)
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{
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using namespace boost::python;
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if (len(state) != 2)
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{
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PyErr_SetObject(PyExc_ValueError,
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("expected 2-item tuple in call to __setstate__; got %s"
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% state).ptr()
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);
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throw_error_already_set();
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}
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p.set_allow_overlap(extract<bool>(state[0]));
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p.set_opacity(extract<float>(state[1]));
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}
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};
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namespace
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{
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using namespace boost::python;
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const std::string get_filename(mapnik::point_symbolizer& 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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}
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void export_point_symbolizer()
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{
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using namespace boost::python;
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class_<point_symbolizer>("PointSymbolizer",
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init<>("Default Point Symbolizer - 4x4 black square"))
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.def (init<mapnik::path_expression_ptr>("<path expression ptr>"))
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//.def_pickle(point_symbolizer_pickle_suite())
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.add_property("filename",
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// DS - Using workaround as the normal make_function does not work for unknown reasons...
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//make_function(&point_symbolizer::get_filename,return_value_policy<copy_const_reference>()),
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get_filename,
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&point_symbolizer::set_filename)
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.add_property("allow_overlap",
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&point_symbolizer::get_allow_overlap,
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&point_symbolizer::set_allow_overlap)
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.add_property("opacity",
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&point_symbolizer::get_opacity,
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&point_symbolizer::set_opacity)
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;
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}
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