RmlUi/Include/Rocket/Core/Python/ConverterScriptObject.h

/*
 * This source file is part of libRocket, the HTML/CSS Interface Middleware
 *
 * For the latest information, see http://www.librocket.com
 *
 * Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

#ifndef ROCKETCOREPYTHONCONVERTERSCRIPTOBJECT_H
#define ROCKETCOREPYTHONCONVERTERSCRIPTOBJECT_H

#include "Python.h"

namespace Rocket {
namespace Core {
namespace Python {

/**
	Templated class for converting from a script object to a python object
	
	Simply construct this class in your application start up and it
	will do the necessary registration of the object with the boost
	type conversion repository.

	@author Lloyd Weehuizen
 */

template <typename T>
struct ConverterScriptObject
{
	ConverterScriptObject()
	{
		// Register custom RKTElement to python converter
		boost::python::to_python_converter< T*, ConverterScriptObject< T > >();
	}

	static PyObject* convert(T* object)
	{
		PyObject* pyobject = Py_None;
		if (object)
		{
			PyObject* script_object = (PyObject*)object->GetScriptObject();
			if (script_object) 
			{
				pyobject = script_object;
			}
		}

		Py_INCREF(pyobject);
		return pyobject;
	}
};

}
}
}

#endif