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

#include <osg/BlendFunc>

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

using namespace boost::python;

namespace {
DEFINE_STATEATTRIBUTE_CAST(BlendFunc)
}


namespace PyOSG {
void init_BlendFunc()
{
    REGISTER_STATEATTRIBUTE_CAST(BlendFunc)

    class_<osg::BlendFunc, osg::ref_ptr<osg::BlendFunc>, bases<osg::StateAttribute> > blendfunc("BlendFunc",
            "BlendFunc - encapsulates the OpenGL blend/transparency state.",
            no_init);

    scope blendfunc_scope(blendfunc);

    blendfunc
        .def(init<>())

#if ((OSG_VERSION_MAJOR==1) && (OSG_VERSION_MINOR < 1))
        .def("setFunction", &osg::BlendFunc::setFunction)
#endif
        .def("setSource", &osg::BlendFunc::setSource)
        .def("getSource", &osg::BlendFunc::getSource)
        .def("setDestination", &osg::BlendFunc::setDestination)
        .def("getDestination", &osg::BlendFunc::getDestination)
        ;
    enum_<osg::BlendFunc::BlendFuncMode> blendfuncmode("BlendFuncMode");

#   define OSG_ENUM(VALUE) \
        (blendfuncmode.value(#VALUE, osg::BlendFunc::VALUE), \
        blendfunc.def(#VALUE, object(osg::BlendFunc::VALUE)))
    OSG_ENUM(DST_ALPHA);
    OSG_ENUM(DST_COLOR);
    OSG_ENUM(ONE);
    OSG_ENUM(ONE_MINUS_DST_ALPHA);
    OSG_ENUM(ONE_MINUS_DST_COLOR);
    OSG_ENUM(ONE_MINUS_SRC_ALPHA);
    OSG_ENUM(ONE_MINUS_SRC_COLOR);
    OSG_ENUM(SRC_ALPHA);
    OSG_ENUM(SRC_ALPHA_SATURATE);
    OSG_ENUM(SRC_COLOR);
    OSG_ENUM(CONSTANT_COLOR);
    OSG_ENUM(ONE_MINUS_CONSTANT_COLOR);
    OSG_ENUM(CONSTANT_ALPHA);
    OSG_ENUM(ONE_MINUS_CONSTANT_ALPHA);
    OSG_ENUM(ZERO);
}
} // namespace PyOSG