// Java 3Dテスト用アプレット
// AppearanceTest.java
//   Copyright (c) 1999 ENDO Yasuyuki
//                      mailto:yasuyuki@javaopen.org
//                      http://www.javaopen.org/j3dbook/index.html

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.SimpleUniverse;

public class AppearanceTest extends Applet {
  private Color3f color = new Color3f(1.0f, 1.0f, 1.0f);
  private ColoringAttributes cattr = null;
  
  public AppearanceTest() {
    Panel panel = new Panel();
    this.setLayout(new BorderLayout());
    this.add(panel, BorderLayout.NORTH);
    
    TuplePanel tp = new TuplePanel(color);
    tp.addTupleEventListener( new TupleEventListener() {
      public void tupleStateChanged(TupleEvent e) {
	cattr.setColor(e.getColor3f());
      }
    });
    panel.add(tp);

    Choice choice = new Choice();
    choice.add("FASTEST");
    choice.add("NICEST");
    choice.add("SHADE_FLAT");
    choice.add("SHADE_GOURAUD");
    choice.select(3);
    choice.addItemListener(new ItemListener() {
      public void itemStateChanged( ItemEvent e ){
        String item = (String)e.getItem();
        if (item.equals("FASTEST")) {
          cattr.setShadeModel(ColoringAttributes.FASTEST);
        } else if (item.equals("NICEST")) {
          cattr.setShadeModel(ColoringAttributes.NICEST);
        } else if (item.equals("SHADE_FLAT")) {
          cattr.setShadeModel(ColoringAttributes.SHADE_FLAT);
        } else if (item.equals("SHADE_GOURAUD")) {
          cattr.setShadeModel(ColoringAttributes.SHADE_GOURAUD);
        }
      }
    });
    panel.add(choice);
    
    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();

    Point3d[] triverts = new Point3d[6];
    
    triverts[0] = new Point3d(-0.9, 0.4, 0.0);
    triverts[1] = new Point3d(-0.6, 0.0, 0.0);
    triverts[2] = new Point3d(-0.2, 0.7, 0.0);
    triverts[3] = new Point3d(0.1, 0.4, 0.0);
    triverts[4] = new Point3d(0.3, 0.0, 0.0);
    triverts[5] = new Point3d(0.6, 0.5, 0.0);
    
    TriangleArray tarray = new TriangleArray(
      triverts.length, GeometryArray.COORDINATES);
    tarray.setCoordinates(0, triverts);

    Appearance ap = createAppearance();
    
    Shape3D triangles = new Shape3D(tarray, ap);
    
    root.addChild(triangles);

    Point3d[] stripverts = new Point3d[8];
    stripverts[0] = new Point3d(-0.9, -0.6, 0.0);
    stripverts[1] = new Point3d(-0.5, -0.8, 0.0);
    stripverts[2] = new Point3d(-0.5, -0.4, 0.0);
    stripverts[3] = new Point3d(0.0, -0.6, 0.0);
    stripverts[4] = new Point3d(0.0, -0.2, 0.0);
    stripverts[5] = new Point3d(0.4, -0.3, 0.0);
    stripverts[6] = new Point3d(0.5, 0.1, 0.0);
    stripverts[7] = new Point3d(0.8, 0.0, 0.0);

    int[] vcounts = { stripverts.length };
  
    TriangleStripArray sarray =
      new TriangleStripArray( stripverts.length,
                              GeometryArray.COORDINATES | GeometryArray.COLOR_3,
                              vcounts);
    sarray.setCoordinates(0, stripverts);
    
    Color3f[] colors = new Color3f[8];
    colors[0] = new Color3f(1.0f, 1.0f, 1.0f); // white
    colors[1] = new Color3f(1.0f, 0.0f, 0.0f); // red
    colors[2] = new Color3f(0.0f, 1.0f, 1.0f); // cyan
    colors[3] = new Color3f(0.0f, 0.0f, 0.0f); // black
    colors[4] = new Color3f(1.0f, 1.0f, 0.0f); // yellow
    colors[5] = new Color3f(0.0f, 0.0f, 1.0f); // blue
    colors[6] = new Color3f(0.0f, 1.0f, 0.0f); // green
    colors[7] = new Color3f(1.0f, 0.0f, 1.0f); // magenta
    sarray.setColors(0, colors);
  
    Shape3D tstrip = new Shape3D(sarray, ap);
  
  root.addChild(tstrip);
  
    return root;
  }

  private Appearance createAppearance() {
    Appearance ap = new Appearance();
    ap.setCapability(Appearance.ALLOW_COLORING_ATTRIBUTES_WRITE);
    
    cattr = new ColoringAttributes();
    cattr.setCapability(ColoringAttributes.ALLOW_COLOR_READ);
    cattr.setCapability(ColoringAttributes.ALLOW_COLOR_WRITE);
    cattr.setCapability(ColoringAttributes.ALLOW_SHADE_MODEL_WRITE);
    ap.setColoringAttributes(cattr);
    
    return ap;
  }
  

  public static void main(String[] args) {
    AppearanceTest applet = new AppearanceTest();
    MainFrame frame = new MainFrame(applet, 500, 500);
  }
}