mapnik/bindings/python/mapnik_markers_symbolizer.cpp

120 lines
4.2 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2010 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
//$Id$
#include <boost/python.hpp>
#include <mapnik/graphics.hpp>
#include <mapnik/image_util.hpp>
#include <mapnik/markers_symbolizer.hpp>
#include <mapnik/parse_path.hpp>
#include "mapnik_svg.hpp"
using mapnik::markers_symbolizer;
using mapnik::symbolizer_with_image;
using mapnik::path_processor_type;
using mapnik::parse_path;
namespace {
using namespace boost::python;
std::string get_filename(mapnik::markers_symbolizer const& symbolizer)
{
return path_processor_type::to_string(*symbolizer.get_filename());
}
void set_filename(mapnik::markers_symbolizer & symbolizer, std::string const& file_expr)
{
symbolizer.set_filename(parse_path(file_expr));
}
}
struct markers_symbolizer_pickle_suite : boost::python::pickle_suite
{
static boost::python::tuple
getinitargs(markers_symbolizer const& p)
{
std::string filename = path_processor_type::to_string(*p.get_filename());
return boost::python::make_tuple(filename,mapnik::guess_type(filename));
}
static boost::python::tuple
getstate(markers_symbolizer const& p)
{
return boost::python::make_tuple(p.get_allow_overlap(),
p.get_ignore_placement());//,p.get_opacity());
}
static void
setstate (markers_symbolizer& p, boost::python::tuple state)
{
using namespace boost::python;
if (len(state) != 2)
{
PyErr_SetObject(PyExc_ValueError,
("expected 2-item tuple in call to __setstate__; got %s"
% state).ptr()
);
throw_error_already_set();
}
p.set_allow_overlap(extract<bool>(state[0]));
p.set_ignore_placement(extract<bool>(state[1]));
//p.set_opacity(extract<float>(state[2]));
}
};
void export_markers_symbolizer()
{
using namespace boost::python;
class_<markers_symbolizer>("MarkersSymbolizer",
init<>("Default Markers Symbolizer - blue arrow"))
.def (init<mapnik::path_expression_ptr>("<path expression ptr>"))
//.def_pickle(markers_symbolizer_pickle_suite())
.add_property("filename",
&get_filename,
&set_filename)
.add_property("allow_overlap",
&markers_symbolizer::get_allow_overlap,
&markers_symbolizer::set_allow_overlap)
.add_property("spacing",
&markers_symbolizer::get_spacing,
&markers_symbolizer::set_spacing)
.add_property("max_error",
&markers_symbolizer::get_max_error,
&markers_symbolizer::set_max_error)
.add_property("opacity",
&markers_symbolizer::get_opacity,
&markers_symbolizer::set_opacity,
"Set/get the text opacity")
.add_property("ignore_placement",
&markers_symbolizer::get_ignore_placement,
&markers_symbolizer::set_ignore_placement)
.add_property("transform",
&mapnik::get_svg_transform<markers_symbolizer>,
&mapnik::set_svg_transform<markers_symbolizer>)
;
}