// 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/Depth>

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

using namespace boost::python;

namespace {
osg::Depth * asDepth(osg::StateAttribute * self) { return dynamic_cast<osg::Depth*>(self); }
} // namespace

namespace PyOSG {
void init_Depth()
{
    register_castStateAttribute("asDepth", &asDepth);

    class_<osg::Depth, osg::ref_ptr<osg::Depth>, bases<osg::StateAttribute>, boost::noncopyable > depth("Depth", 
            "Encapsulate OpenGL glDepthFunc/Mask/Range functions.\n", no_init);

    scope depth_scope(depth);

    depth
        .def(init<>())
        .def(init<osg::Depth::Function>())
        .def(init<osg::Depth::Function, double>())
        .def(init<osg::Depth::Function, double, double>())
        .def(init<osg::Depth::Function, double, double, bool>())
        .def("setFunction", &osg::Depth::setFunction)
        .def("getFunction", &osg::Depth::getFunction)
        .def("setRange", &osg::Depth::setRange)
        .def("getZNear", &osg::Depth::getZNear)
        .def("getZFar", &osg::Depth::getZFar)
        .def("setWriteMask", &osg::Depth::setWriteMask)
        .def("getWriteMask", &osg::Depth::getWriteMask)
        ;

    enum_<osg::Depth::Function> function("Function");
#   define OSG_ENUM(VALUE) \
        (function.value(#VALUE, osg::Depth::VALUE), \
        depth.def(#VALUE, object(osg::Depth::VALUE)))

    OSG_ENUM(NEVER);
    OSG_ENUM(LESS);
    OSG_ENUM(EQUAL);
    OSG_ENUM(LEQUAL);
    OSG_ENUM(GREATER);
    OSG_ENUM(NOTEQUAL);
    OSG_ENUM(GEQUAL);
    OSG_ENUM(ALWAYS);

    scope();
}
} // namespace PyOSG