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+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2010 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __FREESTYLE_NODE_LIGHT_H__
+#define __FREESTYLE_NODE_LIGHT_H__
+
+/** \file blender/freestyle/intern/scene_graph/NodeLight.h
+ *  \ingroup freestyle
+ *  \brief Class to represent a light node
+ *  \author Stephane Grabli
+ *  \date 25/01/2002
+ */
+
+#include "Node.h"
+
+#include "../geometry/Geom.h"
+
+#include "../system/FreestyleConfig.h"
+
+using namespace Geometry;
+
+class LIB_SCENE_GRAPH_EXPORT NodeLight : public Node
+{
+public:
+	NodeLight(); 
+	NodeLight(NodeLight& iBrother);
+
+	virtual ~NodeLight() {}
+
+	/*! Accept the corresponding visitor */
+	virtual void accept(SceneVisitor& v);
+
+	/*! Accessors for the light properties */
+	inline const float * ambient() const
+	{
+		return Ambient;
+	}
+
+	inline const float * diffuse() const
+	{
+		return Diffuse;
+	}
+
+	inline const float * specular() const
+	{
+		return Specular;
+	}
+
+	inline const float * position() const
+	{
+		return Position;
+	}
+
+	inline bool isOn() const
+	{
+		return on;
+	}
+
+	inline int number() const
+	{
+		return _number;
+	}
+
+private:
+	// Data members
+	// ============
+
+	/*! on=true, the light is on */
+	bool on;
+
+	/*! The color definition */
+	float Ambient[4];
+	float Diffuse[4];
+	float Specular[4];
+
+	/*! Light position. if w = 0, the light is placed at infinite. */
+	float Position[4];
+
+	/*! used to manage the number of lights */
+	/*! numberOfLights
+	 *    the number of lights in the scene.
+	 *    Initially, 0.
+	 */
+	static int numberOfLights;
+	/*! The current lignt number */
+	int _number;
+};
+
+#endif // __FREESTYLE_NODE_LIGHT_H__