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Viewing changes to bindings/python/mapnik_datasource.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Christophe Sauthier
  • Date: 2009-08-27 00:28:37 UTC
  • mfrom: (1.1.3 upstream)
  • Revision ID: james.westby@ubuntu.com-20090827002837-ztqzfg2rmclfh4i9
Tags: 0.6.1-0ubuntu1
* New upstream release.
* Change usr/lib to usr/lib* to enable build on 64 bits systems due to new
  configuration in SConstruct in :
  - debian/libmapnik-dev.install
  - debian/libmapnik0.6.install
  - debian/mapnik-plugin-base

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Lines of Context:
bindings/python/mapnik_datasource.cpp
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#include <boost/python/detail/api_placeholder.hpp>
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// stl
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#include <sstream>
 
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#include <vector>
 
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// mapnik
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#include <mapnik/envelope.hpp>
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#include <mapnik/datasource.hpp>
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using mapnik::datasource;
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using mapnik::point_datasource;
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struct ds_pickle_suite : boost::python::pickle_suite
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{
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   static boost::python::tuple
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   getinitargs(const datasource& ds)
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   {
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      mapnik::parameters params = ds.params();
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      return boost::python::make_tuple(params);
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   }
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};
 
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using mapnik::layer_descriptor;
 
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using mapnik::attribute_descriptor;
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namespace  
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{
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        }
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        return ss.str();
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    }
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}
 
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    std::string encoding(boost::shared_ptr<mapnik::datasource> const& ds)
 
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    {
 
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            layer_descriptor ld = ds->get_descriptor();
 
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            return ld.get_encoding();
 
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    }
 
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    std::string name(boost::shared_ptr<mapnik::datasource> const& ds)
 
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    {
 
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            layer_descriptor ld = ds->get_descriptor();
 
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            return ld.get_name();
 
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    }
 
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    boost::python::list fields(boost::shared_ptr<mapnik::datasource> const& ds)
 
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    {
 
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        boost::python::list flds;
 
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        if (ds)
 
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        {
 
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            layer_descriptor ld = ds->get_descriptor();
 
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            std::vector<attribute_descriptor> const& desc_ar = ld.get_descriptors();
 
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            std::vector<attribute_descriptor>::const_iterator it = desc_ar.begin();
 
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            std::vector<attribute_descriptor>::const_iterator end = desc_ar.end();
 
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            for (; it != end; ++it)
 
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            {
 
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               flds.append(it->get_name());
 
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            }
 
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        }
 
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        return flds;
 
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    }
 
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    boost::python::list field_types(boost::shared_ptr<mapnik::datasource> const& ds)
 
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    {
 
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        boost::python::list fld_types;
 
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        if (ds)
 
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        {
 
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            layer_descriptor ld = ds->get_descriptor();
 
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            std::vector<attribute_descriptor> const& desc_ar = ld.get_descriptors();
 
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            std::vector<attribute_descriptor>::const_iterator it = desc_ar.begin();
 
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            std::vector<attribute_descriptor>::const_iterator end = desc_ar.end();
 
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            for (; it != end; ++it)
 
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            {  
 
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               unsigned type = it->get_type();
 
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               fld_types.append(type);
 
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            }
 
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        }
 
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        return fld_types;
 
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    }}
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void export_datasource()
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{
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    class_<datasource,boost::shared_ptr<datasource>,
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        boost::noncopyable>("Datasource",no_init)
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        .def_pickle(ds_pickle_suite())
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        .def("envelope",&datasource::envelope)
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        .def("descriptor",&datasource::get_descriptor) //todo
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        .def("features",&datasource::features)
 
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        .def("fields",&fields)
 
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        .def("_field_types",&field_types)
 
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        .def("encoding",&encoding) //todo expose as property
 
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        .def("name",&name)
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        .def("features_at_point",&datasource::features_at_point)
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        .def("params",&datasource::params,return_value_policy<copy_const_reference>(), 
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             "The configuration parameters of the data source. "