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/*
 * Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistribution of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
 * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
 * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
 * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
 * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
 * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
 * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * You acknowledge that this software is not designed, licensed or
 * intended for use in the design, construction, operation or
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 */

package com.sun.j3d.utils.scenegraph.io.state.javax.media.j3d;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import javax.media.j3d.PointLight;
import javax.media.j3d.SpotLight;
import javax.vecmath.Point3f;
import javax.vecmath.Vector3f;

import com.sun.j3d.utils.scenegraph.io.retained.Controller;
import com.sun.j3d.utils.scenegraph.io.retained.SymbolTableData;

// issue 654: should inherit from PointLightState, but too hard to refactor
public class SpotLightState extends LightState {

	public SpotLightState(SymbolTableData symbol, Controller control) {
		super(symbol, control);

	}

	@Override
	public void writeObject(DataOutput out) throws IOException {
		super.writeObject(out);

		// issue 654: add missing attributes, since we should really inherit
		// from PointLightState
		Point3f point = new Point3f();
		((PointLight) node).getAttenuation(point);
		control.writePoint3f(out, point);
		((PointLight) node).getPosition(point);
		control.writePoint3f(out, point);

		Vector3f dir = new Vector3f();
		((SpotLight) node).getDirection(dir);
		control.writeVector3f(out, dir);

		out.writeFloat(((SpotLight) node).getSpreadAngle());
		out.writeFloat(((SpotLight) node).getConcentration());
	}

	@Override
	public void readObject(DataInput in) throws IOException {

		super.readObject(in);

		// issue 654: add missing attributes, since we should really inherit
		// from PointLightState
		if (control.getCurrentFileVersion() >= 5) {
			((PointLight) node).setAttenuation(control.readPoint3f(in));
			((PointLight) node).setPosition(control.readPoint3f(in));
		}

		((SpotLight) node).setDirection(control.readVector3f(in));
		((SpotLight) node).setSpreadAngle(in.readFloat());
		((SpotLight) node).setConcentration(in.readFloat());
	}

	@Override
	protected javax.media.j3d.SceneGraphObject createNode() {
		return new SpotLight();
	}

}