// Loader3D.java// Andrew Davison, April 2005, ad@fivedots.coe.psu.ac.th/* Load an object into the checkboard world, with its   bounding sphere scaled with radius 1. A 3ds model is   also rotated -90 around the x-axis.   The Portfolio loaders are used.   This class handles the moves, rotations, and scaling   GUI interface, and a save button with stores the    placement info in a 'coords' file.   When an object is loaded it can optionally be loaded   with its coords file, created in an earlier execution   of Loader.*/import javax.swing.*;import java.awt.*;import java.awt.event.*;import java.text.DecimalFormat;import java.io.*;import javax.vecmath.*;public class Loader3D extends JFrame						implements ActionListener{  // for specifying moves and rotations  private static final int X_AXIS = 0;  private static final int Y_AXIS = 1;  private static final int Z_AXIS = 2;  private static final int INCR = 0;  private static final int DECR = 1;  private WrapLoader3D w3d;    // the J3D canvas for the loader  // the GUI elements  private JButton xPosLeftBut, xPosRightBut, yPosLeftBut, yPosRightBut, 											zPosLeftBut, zPosRightBut;  private JButton xRotLeftBut, xRotRightBut, yRotLeftBut, yRotRightBut, 											zRotLeftBut, zRotRightBut;  private JTextField scaleTF;  private JTextField xyzTF, rotTF, scaleTotTF;  private JButton saveBut;  private DecimalFormat df;    // for textfield output  public Loader3D(String args[])   {    super("3D Loader");    boolean hasCoordsInfo = false;    String filename = null;    if ((args.length == 2) && (args[0].equals("-c"))) {      hasCoordsInfo = true;      filename = args[1];    }    else if (args.length == 1)        filename = args[0];    else {      System.out.println( "Usage: java Loader3D [-c] <file>");      System.exit(0);    }    w3d = new WrapLoader3D(filename, hasCoordsInfo);    initGUI();    setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );    pack();    setResizable(false);    // fixed size display    setVisible(true);  } // end of Loader3D()  private void initGUI()  /* The GUI consists of the 3D canvas in the center, and a column     of buttons, textfields, etc., down the right hand side (the      control panel).     The top half of the control panel are for inputs: a series of     buttons for carrying out moves and rotations, and a textfield     for entering scaling info.     The bottom half of the panel is for displaying the current     position, rotation, and scaling details.  */  {    ImageIcon upIcon = new ImageIcon("icons/up.gif");    ImageIcon downIcon = new ImageIcon("icons/down.gif");    ImageIcon leftIcon = new ImageIcon("icons/left.gif");    ImageIcon rightIcon = new ImageIcon("icons/right.gif");    ImageIcon inIcon = new ImageIcon("icons/in.gif");    ImageIcon outIcon = new ImageIcon("icons/out.gif");    df = new DecimalFormat("0.###");  // 3 dp    Container c = getContentPane();    c.setLayout( new BorderLayout() );    c.add(w3d, BorderLayout.CENTER);    // build input controls    JPanel p1 = new JPanel();    JLabel xPosLabel = new JLabel("X incr:");    xPosLeftBut = new JButton(leftIcon);    xPosLeftBut.addActionListener(this);    xPosRightBut = new JButton(rightIcon);    xPosRightBut.addActionListener(this);    p1.add(xPosLabel); p1.add(xPosLeftBut); p1.add(xPosRightBut);    JPanel p2 = new JPanel();    JLabel yPosLabel = new JLabel("Y incr:");    yPosLeftBut = new JButton(downIcon);    yPosLeftBut.addActionListener(this);    yPosRightBut = new JButton(upIcon);    yPosRightBut.addActionListener(this);    p2.add(yPosLabel); p2.add(yPosLeftBut); p2.add(yPosRightBut);    JPanel p3 = new JPanel();    JLabel zPosLabel = new JLabel("Z incr:");    zPosLeftBut = new JButton(inIcon);    zPosLeftBut.addActionListener(this);    zPosRightBut = new JButton(outIcon);    zPosRightBut.addActionListener(this);    p3.add(zPosLabel); p3.add(zPosLeftBut); p3.add(zPosRightBut);    JPanel p4 = new JPanel();    JLabel xRotLabel = new JLabel("X rot:");    xRotLeftBut = new JButton(leftIcon);    xRotLeftBut.addActionListener(this);    xRotRightBut = new JButton(rightIcon);    xRotRightBut.addActionListener(this);    p4.add(xRotLabel); p4.add(xRotLeftBut); p4.add(xRotRightBut);    JPanel p5 = new JPanel();    JLabel yRotLabel = new JLabel("Y rot:");    yRotLeftBut = new JButton(leftIcon);    yRotLeftBut.addActionListener(this);    yRotRightBut = new JButton(rightIcon);    yRotRightBut.addActionListener(this);    p5.add(yRotLabel); p5.add(yRotLeftBut); p5.add(yRotRightBut);    JPanel p6 = new JPanel();    JLabel zRotLabel = new JLabel("Z rot:");    zRotLeftBut = new JButton(leftIcon);    zRotLeftBut.addActionListener(this);    zRotRightBut = new JButton(rightIcon);    zRotRightBut.addActionListener(this);    p6.add(zRotLabel); p6.add(zRotLeftBut); p6.add(zRotRightBut);    JPanel p7 = new JPanel();    JLabel scaleLabel = new JLabel("Scale mult:");    scaleTF = new JTextField("1.1", 4);    scaleTF.addActionListener(this);    p7.add(scaleLabel); p7.add(scaleTF);    JPanel p8 = new JPanel();    saveBut = new JButton("Save Coords");    saveBut.addActionListener(this);    p8.add(saveBut);    // build info. reporting controls    JLabel xyzLabel = new JLabel("Pos (x,y,z):");    xyzTF = new JTextField(10);    xyzTF.setEditable(false);    JLabel rotLabel = new JLabel("Rot (x,y,z):");    rotTF = new JTextField(10);    rotTF.setEditable(false);    JPanel pScale = new JPanel();    JLabel scaleTotLabel = new JLabel("Tot Scale:");    scaleTotTF = new JTextField(4);    scaleTotTF.setEditable(false);    pScale.add(scaleTotLabel); pScale.add(scaleTotTF);    // main control panel    JPanel ctrlPanel = new JPanel();    ctrlPanel.setLayout(			new BoxLayout(ctrlPanel, BoxLayout.Y_AXIS));    // add input controls    ctrlPanel.add(p1); ctrlPanel.add(p2);    ctrlPanel.add(p3); ctrlPanel.add(p4);    ctrlPanel.add(p5); ctrlPanel.add(p6);    ctrlPanel.add(p7); ctrlPanel.add(p8);    // add a bit of space between the inputs and reporters    ctrlPanel.add( javax.swing.Box.createVerticalStrut(15) );    // add info. reporting controls    ctrlPanel.add(xyzLabel);    ctrlPanel.add(xyzTF);    ctrlPanel.add(rotLabel);    ctrlPanel.add(rotTF);    ctrlPanel.add(pScale);    JPanel ctrlP = new JPanel();    ctrlP.add(ctrlPanel);    c.add(ctrlP, BorderLayout.EAST);    showPosInfo();   // update on-screen display    showRotInfo();    showScale();  }  // end of initGUI()  public void actionPerformed(ActionEvent e)  {    if (e.getSource() == saveBut)   // save coord info      w3d.saveCoordFile();    else if (e.getSource() == xPosLeftBut)   // X move      w3d.movePos(X_AXIS, DECR);    else if (e.getSource() == xPosRightBut)      w3d.movePos(X_AXIS, INCR);    else if (e.getSource() == yPosLeftBut)   // Y move      w3d.movePos(Y_AXIS, DECR);    else if (e.getSource() == yPosRightBut)      w3d.movePos(Y_AXIS, INCR);    else if (e.getSource() == zPosLeftBut)   // Z move      w3d.movePos(Z_AXIS, DECR);    else if (e.getSource() == zPosRightBut)      w3d.movePos(Z_AXIS, INCR);    else     if (e.getSource() == xRotLeftBut)        // X rotation      w3d.rotate(X_AXIS, DECR);    else if (e.getSource() == xRotRightBut)      w3d.rotate(X_AXIS, INCR);    else if (e.getSource() == yRotLeftBut)   // Y rotation      w3d.rotate(Y_AXIS, INCR);    else if (e.getSource() == yRotRightBut)      w3d.rotate(Y_AXIS, DECR);    else if (e.getSource() == zRotLeftBut)   // Z rotation      w3d.rotate(Z_AXIS, INCR);    else if (e.getSource() == zRotRightBut)      w3d.rotate(Z_AXIS, DECR);    else if (e.getSource() == scaleTF) {   // scale      try {        double d = Double.parseDouble( e.getActionCommand() );        w3d.scale(d);      }      catch(NumberFormatException ex) {        System.out.println("Scale input was not a number");      }    }    showPosInfo();   // update on-screen display    showRotInfo();    showScale();  }  // end of actionPerformed()  private void showPosInfo()  {      Vector3d loc = w3d.getLoc();    xyzTF.setText("( " + df.format(loc.x) + ", " +				df.format(loc.y) + ", " + df.format(loc.z) + " )");    }  private void showRotInfo()  {       Point3d rots = w3d.getRotations();     rotTF.setText("( " + df.format(rots.x) + ", " +				df.format(rots.y) + ", " + df.format(rots.z) + " )");    }  private void showScale()  {     double scale = w3d.getScale();    scaleTotTF.setText( df.format(scale) );    }// ----------------------------------------  public static void main(String[] args)  { new Loader3D(args); }} // end of Loader3D class