// 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/implicit.hpp>
#include <boost/python/scope.hpp>
#include <boost/python/enum.hpp>

#include <osg/BlendEquation>

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

using namespace boost::python;

namespace {
osg::BlendEquation * asBlendEquation(osg::StateAttribute * self) { return dynamic_cast<osg::BlendEquation*>(self); }
}

namespace PyOSG {
void init_BlendEquation()
{
    register_castStateAttribute("asBlendEquation", &asBlendEquation);

    class_<osg::BlendEquation, osg::ref_ptr<osg::BlendEquation>, bases<osg::StateAttribute> > blendEquation("BlendEquation", 
            " Encapsulates OpenGL BlendEquation state.\n", no_init);

    scope blendEquation_scope(blendEquation);

    blendEquation
        .def(init<>())
        .def(init<osg::BlendEquation::Equation>())

        .def("setEquation", &osg::BlendEquation::setEquation)
        .def("getEquation", &osg::BlendEquation::getEquation)
        ;

#   define OSG_ENUM_MODE(VALUE) \
    (equation.value(#VALUE, osg::BlendEquation::VALUE), \
    blendEquation.def(#VALUE, object(osg::BlendEquation::VALUE)))
    enum_<osg::BlendEquation::Equation> equation("Equation");

    OSG_ENUM_MODE(RGBA_MIN);
    OSG_ENUM_MODE(RGBA_MAX);
    OSG_ENUM_MODE(ALPHA_MIN);
    OSG_ENUM_MODE(ALPHA_MAX);
    OSG_ENUM_MODE(LOGIC_OP);
    OSG_ENUM_MODE(FUNC_ADD);
    OSG_ENUM_MODE(FUNC_SUBTRACT);
    OSG_ENUM_MODE(FUNC_REVERSE_SUBTRACT);
}
} // namespace PyOSG