mapnik/bindings/python/mapnik_polygon_pattern_symbolizer.cpp
2012-02-01 17:30:26 -08:00

118 lines
4.2 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2006 Artem Pavlenko, Jean-Francois Doyon
*
* 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/image_util.hpp>
#include <mapnik/polygon_pattern_symbolizer.hpp>
#include "mapnik_enumeration.hpp"
#include <mapnik/parse_path.hpp>
#include "mapnik_svg.hpp"
using namespace mapnik;
using mapnik::polygon_pattern_symbolizer;
using mapnik::path_expression_ptr;
using mapnik::path_processor_type;
using mapnik::parse_path;
using mapnik::guess_type;
namespace {
using namespace boost::python;
const std::string get_filename(polygon_pattern_symbolizer const& t)
{
return path_processor_type::to_string(*t.get_filename());
}
void set_filename(polygon_pattern_symbolizer & t, std::string const& file_expr)
{
t.set_filename(parse_path(file_expr));
}
}
struct polygon_pattern_symbolizer_pickle_suite : boost::python::pickle_suite
{
static boost::python::tuple
getinitargs(const polygon_pattern_symbolizer& p)
{
std::string filename = path_processor_type::to_string(*p.get_filename());
return boost::python::make_tuple(filename,guess_type(filename));
}
static boost::python::tuple
getstate(const polygon_pattern_symbolizer& p)
{
return boost::python::make_tuple(p.get_alignment(),p.get_gamma(),p.get_gamma_method());
}
static void
setstate (polygon_pattern_symbolizer& p, boost::python::tuple state)
{
using namespace boost::python;
if (len(state) != 3)
{
PyErr_SetObject(PyExc_ValueError,
("expected 3-item tuple in call to __setstate__; got %s"
% state).ptr()
);
throw_error_already_set();
}
p.set_alignment(extract<pattern_alignment_e>(state[0]));
p.set_gamma(extract<float>(state[1]));
p.set_gamma_method(extract<gamma_method_e>(state[2]));
}
};
void export_polygon_pattern_symbolizer()
{
using namespace boost::python;
enumeration_<pattern_alignment_e>("pattern_alignment")
.value("LOCAL",LOCAL_ALIGNMENT)
.value("GLOBAL",GLOBAL_ALIGNMENT)
;
class_<polygon_pattern_symbolizer>("PolygonPatternSymbolizer",
init<path_expression_ptr>("<path_expression_ptr>"))
.def_pickle(polygon_pattern_symbolizer_pickle_suite())
.add_property("alignment",
&polygon_pattern_symbolizer::get_alignment,
&polygon_pattern_symbolizer::set_alignment,
"Set/get the alignment of the pattern")
.add_property("transform",
mapnik::get_svg_transform<polygon_pattern_symbolizer>,
mapnik::set_svg_transform<polygon_pattern_symbolizer>)
.add_property("filename",
&get_filename,
&set_filename)
.add_property("gamma",
&polygon_pattern_symbolizer::get_gamma,
&polygon_pattern_symbolizer::set_gamma)
.add_property("gamma_method",
&polygon_pattern_symbolizer::get_gamma_method,
&polygon_pattern_symbolizer::set_gamma_method,
"Set/get the gamma correction method of the polygon")
;
}