mapnik/bindings/python/mapnik_shield_symbolizer.cpp

/*****************************************************************************
 * 
 * This file is part of Mapnik (c++ mapping toolkit)
 *
 * Copyright (C) 2006 Artem Pavlenko, Jean-Francois Doyon
 * Copyright (C) 2006 10East Corp.
 *
 * 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/shield_symbolizer.hpp>
#include <mapnik/image_util.hpp>
#include <mapnik/path_expression_grammar.hpp>

using mapnik::color;
using mapnik::shield_symbolizer;
using mapnik::text_symbolizer;
using mapnik::symbolizer_with_image;
using mapnik::path_processor_type;
using mapnik::path_expression_ptr;
using mapnik::guess_type;
using mapnik::expression_ptr;

struct shield_symbolizer_pickle_suite : boost::python::pickle_suite
{
    static boost::python::tuple
    getinitargs(const shield_symbolizer& s)
    {
        std::string filename = path_processor_type::to_string(*s.get_filename());
        //(name, font name, font size, font color, image file, image type, width, height)
        return boost::python::make_tuple( "TODO",//s.get_name(),
                                          s.get_face_name(),s.get_text_size(),s.get_fill(),filename,guess_type(filename));
      
    }

    static  boost::python::tuple
    getstate(const shield_symbolizer& s)
    {
        return boost::python::make_tuple(s.get_halo_fill(),s.get_halo_radius());
    }

    // TODO add lots more...
    static void
    setstate (shield_symbolizer& s, boost::python::tuple state)
    {
        using namespace boost::python;
        /*if (len(state) != 1)
          {
          PyErr_SetObject(PyExc_ValueError,
          ("expected 1-item tuple in call to __setstate__; got %s"
          % state).ptr()
          );
          throw_error_already_set();
          }*/
                
        s.set_halo_fill(extract<color>(state[0]));
        s.set_halo_radius(extract<float>(state[1]));
        
    }

};

void export_shield_symbolizer()
{
    using namespace boost::python;
    class_< shield_symbolizer, bases<text_symbolizer> >("ShieldSymbolizer",
                                                        init<expression_ptr, std::string const&, unsigned, mapnik::color const&,
                                                        path_expression_ptr>("TODO"))
        //.def_pickle(shield_symbolizer_pickle_suite())
        ;
    
}