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 *	%Z%%M% %I% %E% %U%
 *
 * Copyright (c) 1996-1999 Sun Microsystems, Inc. All Rights Reserved.
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 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
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 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
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 * redistribute the Software for such purposes.
 */

import javax.swing.JFrame;
import java.awt.FlowLayout;
import java.awt.GraphicsEnvironment;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.ColorCube;
import javax.media.j3d.*;
import javax.vecmath.*;

public class MultiCanvases extends JFrame {
    public BranchGroup createSceneGraph() {
	// Create the root of the subgraph
	BranchGroup objRoot = new BranchGroup();

	// Create the transform group node and initialize it to the identity.
	// Enable the TRANSFORM_WRITE capability so that our behavior code
	// can modify it at runtime.  Add it to the root of the subgraph.
	TransformGroup objTrans = new TransformGroup();
	objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
	objRoot.addChild(objTrans);

	// Create a simple shape leaf node and add it into the scene graph.
	objTrans.addChild(new ColorCube(0.4));

	// Create a new Behavior object that will perform the desired
	// operation on the specified transform object and add it into the
	// scene graph.
	Transform3D yAxis = new Transform3D();
	Alpha rotation = new Alpha(-1, Alpha.INCREASING_ENABLE,
				   0, 0,
				   4000, 0, 0,
				   0, 0, 0);

	RotationInterpolator rotator =
	    new RotationInterpolator(rotation,
				     objTrans, yAxis,
				     0.0f, (float) Math.PI*2.0f);
	BoundingSphere bounds =
	    new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
	rotator.setSchedulingBounds(bounds);
	objTrans.addChild(rotator);

        // Have Java 3D perform optimizations on this scene graph.
        objRoot.compile();

	return objRoot;
    }

    public MultiCanvases() { //@@@ Not relevant int numCanvases) {
	getContentPane().setLayout(new FlowLayout());

	GraphicsConfigTemplate3D template = new GraphicsConfigTemplate3D();
//      It will be necesary for an older graphic-card (i.e Matrox G 400)
//        template.setDoubleBuffer(GraphicsConfigTemplate3D.PREFERRED);
//        template.setDepthSize(0);
//        	
	GraphicsConfiguration gConfig = 
            GraphicsEnvironment.getLocalGraphicsEnvironment().
	    getDefaultScreenDevice().getBestConfiguration(template);
        System.out.println("The best GraphicsConfiguration.... " + gConfig);
        
	Canvas3D c = new Canvas3D(gConfig);
	c.setSize(200, 200);
	getContentPane().add(c);

	// Create a simple scene and attach it to the virtual universe
	BranchGroup scene = createSceneGraph();
	SimpleUniverse u = new SimpleUniverse(c);

        // This will move the ViewPlatform back a bit so the
        // objects in the scene can be viewed.
        u.getViewingPlatform().setNominalViewingTransform();

	View view = u.getViewer().getView();
        //@@@ Not relevant
        /*
	for (int i = 1; i < numCanvases; i++) {
	    // Create a new canvas and add it to the view
	    c = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
	    c.setSize(200, 200);
	    add(c);

	    view.addCanvas3D(c);
	}
        */

	u.addBranchGraph(scene);
        setSize(400, 400);
    }

    //@@@ Not relevant
    /*
    void removeFirstCanvas() {
	
    }

    //
    // The following allows MultiCanvases to be run as an application
    // as well as an applet
    //
    
    public static void main(String[] args) {
	int nCanvases = 2;

	if (args.length > 0) {
	    try {
		nCanvases = Integer.parseInt(args[0]);
	    }
	    catch (NumberFormatException e) {
		System.out.println("Usage: java MultiCanvases [#canvases]");
		System.exit(1);
	    }
	}
	MultiCanvases mc = new MultiCanvases(nCanvases);
	new MainFrame(mc, 700, 700);

	try {
	    Thread.sleep(5000);
	} catch (Exception e){};

	mc.removeFirstCanvas();
	
    }
     */
}