94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
/* This file is part of python_mapnik (c++/python mapping toolkit)
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* Copyright (C) 2005 Artem Pavlenko
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*
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* Mapnik is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//$Id: mapnik_parameters.cc 17 2005-03-08 23:58:43Z pavlenko $
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#include <mapnik.hpp>
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#include <boost/python.hpp>
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#include <boost/python/detail/api_placeholder.hpp>
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using mapnik::Parameter;
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using mapnik::Parameters;
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void (Parameters::*add1)(const Parameter& param)=&Parameters::add;
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void (Parameters::*add2)(const std::string&,const std::string&)=&Parameters::add;
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struct parameter_pickle_suite : boost::python::pickle_suite
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{
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static boost::python::tuple
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getinitargs(const Parameter& p)
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{
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using namespace boost::python;
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return boost::python::make_tuple(p.first,p.second);
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}
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};
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struct parameters_pickle_suite : boost::python::pickle_suite
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{
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static boost::python::tuple
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getstate(const Parameters& p)
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{
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using namespace boost::python;
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dict d;
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Parameters::const_iterator pos=p.begin();
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while(pos!=p.end())
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{
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d[pos->first]=pos->second;
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++pos;
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}
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return boost::python::make_tuple(d);
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}
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static void setstate(Parameters& p, boost::python::tuple state)
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{
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using namespace boost::python;
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if (len(state) != 1)
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{
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PyErr_SetObject(PyExc_ValueError,
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("expected 1-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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dict d = extract<dict>(state[0]);
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list keys=d.keys();
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for (int i=0;i<len(keys);++i)
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{
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std::string key=extract<std::string>(keys[i]);
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std::string value=extract<std::string>(d[key]);
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p.add(key,value);
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}
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}
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};
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void export_parameters()
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{
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using namespace boost::python;
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class_<Parameter>("parameter",init<std::string,std::string>())
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.def_pickle(parameter_pickle_suite())
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;
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class_<Parameters>("parameters",init<>())
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.def("add",add1)
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.def("add",add2)
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.def("get",&Parameters::get)
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.def_pickle(parameters_pickle_suite())
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;
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}
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