/**
 *
 * This file is part of jReality. jReality is open source software, made
 * available under a BSD license:
 *
 * Copyright (c) 2003-2006, jReality Group: Charles Gunn, Tim Hoffmann, Markus
 * Schmies, Steffen Weissmann.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 *
 * - Redistributions 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 jReality nor the names of its contributors nor the
 *   names of their associated organizations may be used to endorse or promote
 *   products derived from this software without specific prior written
 *   permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 */


package de.jreality.scene;



/**
 * A visitor for traversing the scene graph. All visit methods are implemented
 * as a call to the visit() method with the supertype parameter.
 * <p>
 * Note that if you want a visitor which  visits all nodes in a scene graph,
 * your visitor will have to include something like the following code:
 * <code><pre>
  public void visit(SceneGraphComponent c) {
  	...
  	c.childrenAccept(this);
  	...
  	}
  	</pre></code>
 * 
 * @author Holger Pietsch
 * 
 * TODO: explain how this works better
 */
public class SceneGraphVisitor {

  protected SceneGraphVisitor() {}

  public void visit(SceneGraphNode m) {}

  public void visit(SceneGraphComponent c) {
    SceneGraphComponent.superAccept(c, this);
  }

  public void visit(Appearance a) {
    Appearance.superAccept(a, this);
  }

  public void visit(Transformation t) {
    Transformation.superAccept(t, this);
  }

  public void visit(Light l) {
    Light.superAccept(l, this);
  }

  public void visit(DirectionalLight l) {
    DirectionalLight.superAccept(l, this);
  }
  
  public void visit(PointLight l) {
      PointLight.superAccept(l, this);
    }

  public void visit(SpotLight l) {
    SpotLight.superAccept(l, this);
  }

  public void visit(Geometry g) {
    Geometry.superAccept(g, this);
  }

  public void visit(Sphere s) {
    Sphere.superAccept(s, this);
  }
  
  public void visit(Cylinder c) {
    Cylinder.superAccept(c, this);
  }

  public void visit(PointSet p) {
    PointSet.superAccept(p, this);
  }

  public void visit(IndexedLineSet g) {
    IndexedLineSet.superAccept(g, this);
  }

  public void visit(IndexedFaceSet i) {
    IndexedFaceSet.superAccept(i, this);
  }

  public void visit(AudioSource a) {
	  AudioSource.superAccept(a, this);
  }

  public void visit(Camera c) {
    Camera.superAccept(c, this);
  }
  
  public void visit(ClippingPlane c) {
      ClippingPlane.superAccept(c, this);
  }
}
