// Copyright (C) 2002-2005 Gideon May (gideon@computer.org)
//
// Permission to copy, use, sell and distribute this software is granted
// provided this copyright notice appears in all copies.
// Permission to modify the code and to distribute modified code is granted
// provided this copyright notice appears in all copies, and a notice
// that the code was modified is included with the copyright notice.
//
// This software is provided "as is" without express or implied warranty,
// and with no claim as to its suitability for any purpose.

#include <boost/python/class.hpp>
#include <boost/python/return_value_policy.hpp>
#include <boost/python/copy_const_reference.hpp>
#include <boost/python/scope.hpp>
#include <boost/python/enum.hpp>

#include <osg/Fog>

#include "StateAttribute.hpp"
#include "held_ptr.hpp"

using namespace boost::python;

namespace {
osg::Fog * asFog(osg::StateAttribute * self) { return dynamic_cast<osg::Fog*>(self); }
}

namespace PyOSG {
void init_Fog()
{
    register_castStateAttribute("asFog", &asFog);

    class_<osg::Fog, osg::ref_ptr<osg::Fog>, bases<osg::StateAttribute> > fog("Fog", 
            "Fog - encapsulates OpenGL fog state.\n" ,
            no_init);
    scope fog_scope(fog);
    fog.def(init<>())
        .def("setMode", &osg::Fog::setMode)
        .def("getMode", &osg::Fog::getMode)

        .def("setDensity", &osg::Fog::setDensity)
        .def("getDensity", &osg::Fog::getDensity)

        .def("setStart", &osg::Fog::setStart)
        .def("getStart", &osg::Fog::getStart)

        .def("setEnd", &osg::Fog::setEnd)
        .def("getEnd", &osg::Fog::getEnd)

        .def("setColor",
            &osg::Fog::setColor)
        .def("getColor",
            &osg::Fog::getColor,
            return_value_policy<copy_const_reference>())

        .def("setFogCoordinateSource", &osg::Fog::setFogCoordinateSource)
        .def("getFogCoordinateSource", &osg::Fog::getFogCoordinateSource)
        ;

#   define OSG_ENUM_MODE(VALUE) \
    (mode.value(#VALUE, osg::Fog::VALUE), \
    fog.def(#VALUE, object(osg::Fog::VALUE)))
    enum_<osg::Fog::Mode> mode("Mode");
    OSG_ENUM_MODE(LINEAR);
    OSG_ENUM_MODE(EXP);
    OSG_ENUM_MODE(EXP2);

#   define OSG_ENUM_SOURCE(VALUE) \
    (source.value(#VALUE, osg::Fog::VALUE), \
    fog.def(#VALUE, object(osg::Fog::VALUE)))
    enum_<osg::Fog::FogCoordinateSource> source("FogCoordinateSource");
    OSG_ENUM_SOURCE(FOG_COORDINATE);
    OSG_ENUM_SOURCE(FRAGMENT_DEPTH);
}
}