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+add pickle support for shield_symbolizer - see #345

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This commit is contained in:
Dane Springmeyer 2009-05-24 05:55:35 +00:00
parent 1218b4c034
commit 8b854a1bb2
1 changed files with 47 additions and 4 deletions
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51
bindings/python/mapnik_shield_symbolizer.cpp
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@ -24,17 +24,60 @@
#include <boost/python.hpp>
#include <mapnik/shield_symbolizer.hpp>
#include <mapnik/image_util.hpp>
using mapnik::color;
using mapnik::shield_symbolizer;
using mapnik::text_symbolizer;
using mapnik::symbolizer_with_image;
struct shield_symbolizer_pickle_suite : boost::python::pickle_suite
{
static boost::python::tuple
getinitargs(const shield_symbolizer& s)
{
boost::shared_ptr<mapnik::ImageData32> img = s.get_image();
const std::string & filename = s.get_filename();
//(name, font name, font size, font color, image file, image type, width, height)
return boost::python::make_tuple(s.get_name(),s.get_face_name(),s.get_text_size(),s.get_fill(),filename,mapnik::guess_type(filename),img->width(),img->height());
}
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;
using mapnik::shield_symbolizer;
using mapnik::text_symbolizer;
using mapnik::symbolizer_with_image;
class_< shield_symbolizer, bases<text_symbolizer> >("ShieldSymbolizer",
init< std::string const&, std::string const&, unsigned, mapnik::color const&,
std::string const&, std::string const&,unsigned,unsigned>("TODO"))
.def_pickle(shield_symbolizer_pickle_suite())
;
}