/*****************************************************************************

*

* This file is part of Mapnik (c++ mapping toolkit)

*

* Copyright (C) 2015 Artem Pavlenko, Jean-Francois Doyon

*

* 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

*

*****************************************************************************/

#include <mapnik/config.hpp>

#pragma GCC diagnostic push

#include <mapnik/warning_ignore.hpp>

#include <boost/python.hpp>

#pragma GCC diagnostic pop

// mapnik

#include <mapnik/view_transform.hpp>

using mapnik::view_transform;

struct view_transform_pickle_suite : boost::python::pickle_suite

{

static boost::python::tuple

getinitargs(const view_transform& c)

{

using namespace boost::python;

return boost::python::make_tuple(c.width(),c.height(),c.extent());

}

};

namespace {

mapnik::coord2d forward_point(mapnik::view_transform const& t, mapnik::coord2d const& in)

{

mapnik::coord2d out(in);

t.forward(out);

return out;

}

mapnik::coord2d backward_point(mapnik::view_transform const& t, mapnik::coord2d const& in)

{

mapnik::coord2d out(in);

t.backward(out);

return out;

}

mapnik::box2d<double> forward_envelope(mapnik::view_transform const& t, mapnik::box2d<double> const& in)

{

return t.forward(in);

}

mapnik::box2d<double> backward_envelope(mapnik::view_transform const& t, mapnik::box2d<double> const& in)

{

return t.backward(in);

}

}

void export_view_transform()

{

using namespace boost::python;

using mapnik::box2d;

using mapnik::coord2d;

class_<view_transform>("ViewTransform",init<int,int,box2d<double> const& > (

"Create a ViewTransform with a width and height as integers and extent"))

.def_pickle(view_transform_pickle_suite())

.def("forward", forward_point)

.def("backward",backward_point)

.def("forward", forward_envelope)

.def("backward",backward_envelope)

.def("scale_x",&view_transform::scale_x)

.def("scale_y",&view_transform::scale_y)

;

}