//Title:      JBuilder3FirstApplet.java
//Version:     1.0
//Copyright:   Copyright (c) 2000 ENDO Yasuyuki
//Author:       ENDO Yasuyuki
//Company:      javaopen.org
//Description:  JBuilder 3 Foundation First Java 3D Applet

package jb3first;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

import javax.media.j3d.Canvas3D;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.BoundingSphere;

import javax.vecmath.Point3d;

import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
import com.sun.j3d.utils.behaviors.mouse.MouseZoom;
import com.sun.j3d.utils.behaviors.mouse.MouseTranslate;

public class JBuilder3FirstApplet extends Applet {
  boolean isStandalone = false;

  //Get a parameter value
  public String getParameter(String key, String def) {
    return isStandalone ? System.getProperty(key, def) :
      (getParameter(key) != null ? getParameter(key) : def);
  }

  //Construct the applet
  public JBuilder3FirstApplet() {
  }

  //Initialize the applet
  public void init() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }

  //Component initialization
  private void jbInit() throws Exception {
    this.setLayout(new BorderLayout());

    GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
    Canvas3D canvas = new Canvas3D(config);

    this.add(canvas, BorderLayout.CENTER);

    SimpleUniverse universe = new SimpleUniverse(canvas);
    universe.getViewingPlatform().setNominalViewingTransform();

    BranchGroup scene = createSceneGraph();
    universe.addBranchGraph(scene);
  }

  private BranchGroup createSceneGraph() {
    BranchGroup root = new BranchGroup();

    TransformGroup trans = new TransformGroup();
    trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    root.addChild(trans);

    BoundingSphere bounds =
      new BoundingSphere( new Point3d(), 100.0 );

    MouseRotate rotetor = new MouseRotate(trans);
    rotetor.setSchedulingBounds(bounds);
    root.addChild(rotetor);

    MouseTranslate translate = new MouseTranslate(trans);
    translate.setSchedulingBounds(bounds);
    root.addChild(translate);

    MouseZoom zoomer = new MouseZoom(trans);
    zoomer.setSchedulingBounds(bounds);
    root.addChild(zoomer);

    trans.addChild(new ColorCube(0.4));

    return root;
  }

  //Start the applet
  public void start() {
  }

  //Stop the applet
  public void stop() {
  }

  //Destroy the applet
  public void destroy() {
  }

  //Get Applet information
  public String getAppletInfo() {
    return "Applet Information";
  }

  //Get parameter info
  public String[][] getParameterInfo() {
    return null;
  }

  //Main method
  public static void main(String[] args) {
    JBuilder3FirstApplet applet = new JBuilder3FirstApplet();
    applet.isStandalone = true;
    Frame frame =
      new com.sun.j3d.utils.applet.MainFrame(applet, 500, 500);
  }
}