mapnik/bindings/python/mapnik_palette.cpp

62 lines
2.2 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2011 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
*
*****************************************************************************/
// boost
#include <boost/python.hpp>
#include <boost/make_shared.hpp>
#include <boost/noncopyable.hpp>
//mapnik
#include <mapnik/palette.hpp>
// stl
#include <stdexcept>
static boost::shared_ptr<mapnik::rgba_palette> make_palette( std::string const& palette, std::string const& format )
{
mapnik::rgba_palette::palette_type type = mapnik::rgba_palette::PALETTE_RGBA;
if (format == "rgb")
type = mapnik::rgba_palette::PALETTE_RGB;
else if (format == "act")
type = mapnik::rgba_palette::PALETTE_ACT;
else
throw std::runtime_error("invalid type passed for mapnik.Palette: must be either rgba, rgb, or act");
return boost::make_shared<mapnik::rgba_palette>(palette, type);
}
void export_palette ()
{
using namespace boost::python;
class_<mapnik::rgba_palette,
boost::shared_ptr<mapnik::rgba_palette>,
boost::noncopyable >("Palette",no_init)
//, init<std::string,std::string>(
// ( arg("palette"), arg("type")),
// "Creates a new color palette from a file\n"
// )
.def( "__init__", boost::python::make_constructor(make_palette))
.def("to_string", &mapnik::rgba_palette::to_string,
"Returns the palette as a string.\n"
)
;
}