Beispiel #1
0
  /** This is the main method for configuring the <it>MyScreenAbout</it>. */
  public MyScreenAbout() { // constructor
    setSize(470, 600);
    setTitle("informació sobre el MAGNUS");
    setResizable(false);
    Toolkit toolkit = Toolkit.getDefaultToolkit();
    URL url = getClass().getResource("icon.png");
    Image image = toolkit.getImage(url);
    setIconImage(image);
    ScrollPane scrollPane = new ScrollPane(ScrollPane.SCROLLBARS_NEVER);
    scrollPane.setSize(470, 148);
    scrollPane.setBackground(new Color(0, 128, 0));
    Canvas canvas = new MyCanvasAbout();
    canvas.setSize(470, 148);
    scrollPane.add(canvas);
    add(scrollPane, BorderLayout.NORTH);

    ScrollPane infoscroll = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
    infoscroll.setSize(470, 400);
    infoscroll.setBackground(new Color(255, 255, 255));
    Panel info = new Panel();
    info.setLayout(new GridLayout(56, 1));
    infoscroll.add(info);

    Label ts1 = new Label("MAGNUS 0.1.1");
    ts1.setFont(new Font("SansSerif", Font.BOLD, 10));
    ts1.setForeground(new Color(0, 0, 0));
    ts1.setBackground(new Color(255, 255, 255));
    info.add(ts1);

    Label ts2 = new Label("http://magnusproject.wordpress.com");
    ts2.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts2.setForeground(new Color(0, 0, 255));
    ts2.setBackground(new Color(255, 255, 255));
    info.add(ts2);

    Label ts3 = new Label(" ");
    ts3.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts3.setForeground(new Color(0, 0, 255));
    ts3.setBackground(new Color(255, 255, 255));
    info.add(ts3);

    Label ts4 = new Label("Alexandre Trilla Castelló");
    ts4.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts4.setForeground(new Color(0, 0, 0));
    ts4.setBackground(new Color(255, 255, 255));
    info.add(ts4);

    Label ts5 = new Label("          http://www.salle.url.edu/~atrilla/");
    ts5.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts5.setForeground(new Color(0, 0, 255));
    ts5.setBackground(new Color(255, 255, 255));
    info.add(ts5);

    Label ts7 = new Label("Departament d'Educació de la Generalitat de Catalunya");
    ts7.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts7.setForeground(new Color(0, 0, 0));
    ts7.setBackground(new Color(255, 255, 255));
    info.add(ts7);

    Label ts8 = new Label("          http://www.xtec.cat");
    ts8.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts8.setForeground(new Color(0, 0, 255));
    ts8.setBackground(new Color(255, 255, 255));
    info.add(ts8);

    Label ts9 = new Label("Universitat Ramon Llull La Salle Enginyeria de Telecomunicació");
    ts9.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts9.setForeground(new Color(0, 0, 0));
    ts9.setBackground(new Color(255, 255, 255));
    info.add(ts9);

    Label ts10 = new Label("          http://www.salle.url.edu");
    ts10.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts10.setForeground(new Color(0, 0, 255));
    ts10.setBackground(new Color(255, 255, 255));
    info.add(ts10);

    Label ts11 = new Label(" ");
    ts11.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts11.setForeground(new Color(0, 0, 0));
    ts11.setBackground(new Color(255, 255, 255));
    info.add(ts11);

    Label ts111 = new Label(" ");
    ts111.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts111.setForeground(new Color(0, 0, 255));
    ts111.setBackground(new Color(255, 255, 255));
    info.add(ts111);

    DesenvCanvas dc = new DesenvCanvas();
    info.add(dc);

    Label ts17 = new Label("MAGNUS ha estat desenvolupat per Alexandre Trilla");
    ts17.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts17.setForeground(new Color(0, 0, 0));
    ts17.setBackground(new Color(255, 255, 255));
    info.add(ts17);

    Label ts18 = new Label("pel Servei de Tecnologies per l'Aprenentatge i el");
    ts18.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts18.setForeground(new Color(0, 0, 0));
    ts18.setBackground(new Color(255, 255, 255));
    info.add(ts18);

    Label ts19 = new Label("Coneixement del Departament d'Educació de la");
    ts19.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts19.setForeground(new Color(0, 0, 0));
    ts19.setBackground(new Color(255, 255, 255));
    info.add(ts19);

    Label ts20 = new Label("Generalitat de Catalunya.");
    ts20.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts20.setForeground(new Color(0, 0, 0));
    ts20.setBackground(new Color(255, 255, 255));
    info.add(ts20);

    Label ts21 = new Label(" ");
    ts21.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts21.setForeground(new Color(0, 0, 0));
    ts21.setBackground(new Color(255, 255, 255));
    info.add(ts21);

    Label ts22 = new Label("Alhora, MAGNUS ha constituït el Projecte Final de");
    ts22.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts22.setForeground(new Color(0, 0, 0));
    ts22.setBackground(new Color(255, 255, 255));
    info.add(ts22);

    Label ts23 = new Label("Carrera de l'autor, havent cursat d'Enginyeria");
    ts23.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts23.setForeground(new Color(0, 0, 0));
    ts23.setBackground(new Color(255, 255, 255));
    info.add(ts23);

    Label ts24 = new Label("Superior de Telecomunicacions a la Universitat");
    ts24.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts24.setForeground(new Color(0, 0, 0));
    ts24.setBackground(new Color(255, 255, 255));
    info.add(ts24);

    Label ts25 = new Label("Ramon Llull La Salle de Barcelona.");
    ts25.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts25.setForeground(new Color(0, 0, 0));
    ts25.setBackground(new Color(255, 255, 255));
    info.add(ts25);

    Label ts26 = new Label(" ");
    ts26.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts26.setForeground(new Color(0, 0, 0));
    ts26.setBackground(new Color(255, 255, 255));
    info.add(ts26);

    Label ts261 = new Label(" ");
    ts261.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts261.setForeground(new Color(0, 0, 0));
    ts261.setBackground(new Color(255, 255, 255));
    info.add(ts261);

    CredenCanvas cc = new CredenCanvas();
    info.add(cc);

    Label ts12 = new Label("Aquest producte inclou programari desenvolupat per:");
    ts12.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts12.setForeground(new Color(0, 0, 0));
    ts12.setBackground(new Color(255, 255, 255));
    info.add(ts12);

    Label ts121 = new Label(" ");
    ts121.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts121.setForeground(new Color(0, 0, 0));
    ts121.setBackground(new Color(255, 255, 255));
    info.add(ts121);

    Label ts13 = new Label("Sphinx-4");
    ts13.setFont(new Font("SansSerif", Font.BOLD, 10));
    ts13.setForeground(new Color(0, 0, 0));
    ts13.setBackground(new Color(255, 255, 255));
    info.add(ts13);

    Label ts14 = new Label("Carnegie Mellon University");
    ts14.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts14.setForeground(new Color(0, 0, 0));
    ts14.setBackground(new Color(255, 255, 255));
    info.add(ts14);

    Label ts142 = new Label("          http://cmusphinx.sourceforge.net/sphinx4/");
    ts142.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts142.setForeground(new Color(0, 0, 255));
    ts142.setBackground(new Color(255, 255, 255));
    info.add(ts142);

    Label ts141 = new Label(" ");
    ts141.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts141.setForeground(new Color(0, 0, 0));
    ts141.setBackground(new Color(255, 255, 255));
    info.add(ts141);

    Label ts15 = new Label("Jdom");
    ts15.setFont(new Font("SansSerif", Font.BOLD, 10));
    ts15.setForeground(new Color(0, 0, 0));
    ts15.setBackground(new Color(255, 255, 255));
    info.add(ts15);

    Label ts16 = new Label("The JDOM Project");
    ts16.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts16.setForeground(new Color(0, 0, 0));
    ts16.setBackground(new Color(255, 255, 255));
    info.add(ts16);

    Label ts162 = new Label("          http://www.jdom.org");
    ts162.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts162.setForeground(new Color(0, 0, 255));
    ts162.setBackground(new Color(255, 255, 255));
    info.add(ts162);

    Label ts161 = new Label(" ");
    ts161.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts161.setForeground(new Color(0, 0, 0));
    ts161.setBackground(new Color(255, 255, 255));
    info.add(ts161);

    Label ts163 = new Label(" ");
    ts163.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts163.setForeground(new Color(0, 0, 0));
    ts163.setBackground(new Color(255, 255, 255));
    info.add(ts163);

    LicCanvas lc = new LicCanvas();
    info.add(lc);

    Label ts64 = new Label("Copyright (C) 2007 Alexandre Trilla &");
    ts64.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts64.setForeground(new Color(0, 0, 0));
    ts64.setBackground(new Color(255, 255, 255));
    info.add(ts64);

    Label ts65 = new Label("Departament d'Educació de la Generalitat de Catalunya &");
    ts65.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts65.setForeground(new Color(0, 0, 0));
    ts65.setBackground(new Color(255, 255, 255));
    info.add(ts65);

    Label ts66 = new Label("Universitat Ramon Llull La Salle Enginyeria de Telecomunicació");
    ts66.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts66.setForeground(new Color(0, 0, 0));
    ts66.setBackground(new Color(255, 255, 255));
    info.add(ts66);

    Label ts67 = new Label(" ");
    ts67.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts67.setForeground(new Color(0, 0, 0));
    ts67.setBackground(new Color(255, 255, 255));
    info.add(ts67);

    Label ts68 = new Label("Aquest programa és lliure. Podeu distribuir-lo i/o modificar-");
    ts68.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts68.setForeground(new Color(0, 0, 0));
    ts68.setBackground(new Color(255, 255, 255));
    info.add(ts68);

    Label ts69 = new Label("lo conforme a les disposicions de la Llicència Pública General");
    ts69.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts69.setForeground(new Color(0, 0, 0));
    ts69.setBackground(new Color(255, 255, 255));
    info.add(ts69);

    Label ts70 = new Label("de GNU (GPL), publicada per la Free Software Foundation, ja");
    ts70.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts70.setForeground(new Color(0, 0, 0));
    ts70.setBackground(new Color(255, 255, 255));
    info.add(ts70);

    Label ts71 = new Label("sigui la versió 3 de la llicència o qualsevol versió posterior.");
    ts71.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts71.setForeground(new Color(0, 0, 0));
    ts71.setBackground(new Color(255, 255, 255));
    info.add(ts71);

    Label ts711 = new Label(" ");
    ts711.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts711.setForeground(new Color(0, 0, 0));
    ts711.setBackground(new Color(255, 255, 255));
    info.add(ts711);

    Label ts72 = new Label("Aquest programa es distribueix amb la intenció de resultar");
    ts72.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts72.setForeground(new Color(0, 0, 0));
    ts72.setBackground(new Color(255, 255, 255));
    info.add(ts72);

    Label ts73 = new Label("útil, però SENSE CAP GARANTIA, fins i tot sense la garantia");
    ts73.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts73.setForeground(new Color(0, 0, 0));
    ts73.setBackground(new Color(255, 255, 255));
    info.add(ts73);

    Label ts74 = new Label("implícita de COMERCIABILITAT o CONVENIÈNCIA PER A UN");
    ts74.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts74.setForeground(new Color(0, 0, 0));
    ts74.setBackground(new Color(255, 255, 255));
    info.add(ts74);

    Label ts75 = new Label("PROPÒSIT PARTICULAR. Per a més detalls, vegeu la Llicència");
    ts75.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts75.setForeground(new Color(0, 0, 0));
    ts75.setBackground(new Color(255, 255, 255));
    info.add(ts75);

    Label ts76 = new Label("Pública General de GNU.");
    ts76.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts76.setForeground(new Color(0, 0, 0));
    ts76.setBackground(new Color(255, 255, 255));
    info.add(ts76);

    Label ts77 = new Label(" ");
    ts77.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts77.setForeground(new Color(0, 0, 0));
    ts77.setBackground(new Color(255, 255, 255));
    info.add(ts77);

    Label ts771 = new Label(" ");
    ts771.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts771.setForeground(new Color(0, 0, 0));
    ts771.setBackground(new Color(255, 255, 255));
    info.add(ts771);

    SupCanvas supc = new SupCanvas();
    info.add(supc);

    Label ts1234 = new Label("Desenvolupat en col·laboració amb Enginyeria i");
    ts1234.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts1234.setForeground(new Color(0, 0, 0));
    ts1234.setBackground(new Color(255, 255, 255));
    info.add(ts1234);

    Label ts12345 = new Label("Arquitectura La Salle (Universitat Ramon Llull)");
    ts12345.setFont(new Font("SansSerif", Font.PLAIN, 10));
    ts12345.setForeground(new Color(0, 0, 0));
    ts12345.setBackground(new Color(255, 255, 255));
    info.add(ts12345);

    SalleCanvas sallec = new SalleCanvas();
    // info.add(sallec);
    add(sallec, BorderLayout.SOUTH);

    add(infoscroll, BorderLayout.CENTER);

    addWindowListener(
        new WindowAdapter() {

          /**
           * This method catches the closing event and react accordingly.
           *
           * @param e WindowEvent: the window closing event.
           */
          public void windowClosing(WindowEvent e) {
            setVisible(false);
          }
        });
  }
Beispiel #2
0
  public void setupDBFields(String dbname) throws Exception {

    viewPane.setLayout(null);
    Dimension dimView = sp.getSize();
    int height = 0, width = 50;
    viewPane.removeAll();
    db = new DBF(dbname);
    setTitle(dbname);

    gb = new GridBagLayout();
    gbc = new GridBagConstraints();
    viewPane.setLayout(gb);

    int i, j;
    fldObjects = new Vector(db.getFieldCount());
    for (i = 1; i <= db.getFieldCount(); i++) {
      j = i - 1;
      f = db.getField(i);
      if (f.isMemoField() || f.isPictureField()) {
        b = new Button(db.getField(i).getName());
        b.addActionListener(this);
        addComponent(
            viewPane, b, 1, j, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
        fldObjects.addElement(b);
      } else if (f.getType() == 'L') {
        c = new Checkbox(db.getField(i).getName(), true);
        addComponent(
            viewPane, c, 1, j, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
        fldObjects.addElement(c);
      } else {
        l = new Label(db.getField(i).getName(), Label.RIGHT);
        addComponent(
            viewPane, l, 0, j, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
        int ln = f.getLength();
        if (ln > 100) {
          ln = 100;
        }
        t = new TextField(db.getField(i).getName(), ln);
        if (width < ln * 10) {
          width = ln * 10;
        }
        addComponent(
            viewPane, t, 1, j, ln, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
        fldObjects.addElement(t);
        t.setEditable(true);
      }
      height += 10;
    }

    crl.setText("Record " + db.getCurrentRecordNumber());
    trl.setText(" of " + db.getRecordCount());
    SBrecpos.setMaximum(db.getRecordCount());
    addComponent(viewPane, crl, 0, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
    addComponent(viewPane, trl, 1, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
    i++;
    addComponent(
        viewPane, SBrecpos, 0, i, 2, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
    addComponent(
        viewPane, delCB, 2, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
    i++;
    addComponent(
        viewPane, Prev, 0, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
    addComponent(
        viewPane, Next, 1, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
    i++;
    addComponent(viewPane, Add, 0, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
    addComponent(
        viewPane, Update, 1, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
    addComponent(
        viewPane, Clear, 2, i, 1, 1, GridBagConstraints.HORIZONTAL, GridBagConstraints.EAST);
    Prev.setEnabled(false);
    prevRecord.setEnabled(false);
    if (db.getRecordCount() == 0) {
      Update.setEnabled(false);
      updateRecord.setEnabled(false);
      Next.setEnabled(false);
      nextRecord.setEnabled(false);
    }

    dimView.setSize(width + 150, height + 150);
    sp.setSize(dimView);

    goTo(1);
  }
Beispiel #3
0
  /** Create the whole GUI, and set up event listeners */
  public AllComponents(String title) {
    super(title); // set frame title.

    // Arrange to detect window close events
    this.addWindowListener(
        new WindowAdapter() {
          public void windowClosing(WindowEvent e) {
            System.exit(0);
          }
        });

    // Set a default font
    this.setFont(new Font("SansSerif", Font.PLAIN, 12));

    // Create the menubar.  Tell the frame about it.
    MenuBar menubar = new MenuBar();
    this.setMenuBar(menubar);

    // Create the file menu.  Add to menubar.
    Menu file = new Menu("File");
    menubar.add(file);

    // Create two items for the file menu, setting their label, shortcut,
    // action command and listener.  Add them to File menu.
    // Note that we use the frame itself as the action listener
    MenuItem open = new MenuItem("Open", new MenuShortcut(KeyEvent.VK_O));
    open.setActionCommand("open");
    open.addActionListener(this);
    file.add(open);
    MenuItem quit = new MenuItem("Quit", new MenuShortcut(KeyEvent.VK_Q));
    quit.setActionCommand("quit");
    quit.addActionListener(this);
    file.add(quit);

    // Create Help menu; add an item; add to menubar
    // Display the help menu in a special reserved place.
    Menu help = new Menu("Help");
    menubar.add(help);
    menubar.setHelpMenu(help);

    // Create and add an item to the Help menu
    MenuItem about = new MenuItem("About", new MenuShortcut(KeyEvent.VK_A));
    about.setActionCommand("about");
    about.addActionListener(this);
    help.add(about);

    // Now that we've done the menu, we can begin work on the contents of
    // the frame.  Assign a BorderLayout manager with margins for this frame.
    this.setLayout(new BorderLayout(10, 10));

    // Create two panels to contain two columns of components.  Use our custom
    // ColumnLayout layout manager for each.  Add them on the west and
    // center of the frame's border layout
    Panel column1 = new Panel();
    column1.setLayout(new ColumnLayout(5, 10, 2, ColumnLayout.LEFT));
    this.add(column1, "West");
    Panel column2 = new Panel();
    column2.setLayout(new ColumnLayout(5, 10, 2, ColumnLayout.LEFT));
    this.add(column2, "Center");

    // Create a panel to contain the buttons at the bottom of the window
    // Give it a FlowLayout layout manager, and add it along the south border
    Panel buttonbox = new Panel();
    buttonbox.setLayout(new FlowLayout(FlowLayout.CENTER, 100, 10));
    this.add(buttonbox, "South");

    // Create pushbuttons and add them to the buttonbox
    Button okay = new Button("Okay");
    Button cancel = new Button("Cancel");
    buttonbox.add(okay);
    buttonbox.add(cancel);

    // Handle events on the buttons
    ActionListener buttonlistener =
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            textarea.append("You clicked: " + ((Button) e.getSource()).getLabel() + "\n");
          }
        };
    okay.addActionListener(buttonlistener);
    cancel.addActionListener(buttonlistener);

    // Now start filling the left column.
    // Create a 1-line text field and add to left column, with a label
    TextField textfield = new TextField(15);
    column1.add(new Label("Name:"));
    column1.add(textfield);

    // Handle events on the TextField
    textfield.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            textarea.append("Your name is: " + ((TextField) e.getSource()).getText() + "\n");
          }
        });
    textfield.addTextListener(
        new TextListener() {
          public void textValueChanged(TextEvent e) {
            textarea.append("You have typed: " + ((TextField) e.getSource()).getText() + "\n");
          }
        });

    // Create a dropdown list or option menu of choices
    Choice choice = new Choice();
    choice.addItem("red");
    choice.addItem("green");
    choice.addItem("blue");
    column1.add(new Label("Favorite color:"));
    column1.add(choice);

    // Handle events on this choice
    choice.addItemListener(
        new ItemListener() {
          public void itemStateChanged(ItemEvent e) {
            textarea.append("Your favorite color is: " + e.getItem() + "\n");
          }
        });

    // Create checkboxes, and group them in a CheckboxGroup to give them
    // "radio button" behavior.
    CheckboxGroup checkbox_group = new CheckboxGroup();
    Checkbox[] checkboxes = new Checkbox[3];
    checkboxes[0] = new Checkbox("vanilla", checkbox_group, false);
    checkboxes[1] = new Checkbox("chocolate", checkbox_group, true);
    checkboxes[2] = new Checkbox("strawberry", checkbox_group, false);
    column1.add(new Label("Favorite flavor:"));
    for (int i = 0; i < checkboxes.length; i++) column1.add(checkboxes[i]);

    // Handle events on the checkboxes
    ItemListener checkbox_listener =
        new ItemListener() {
          public void itemStateChanged(ItemEvent e) {
            textarea.append(
                "Your favorite flavor is: " + ((Checkbox) e.getItemSelectable()).getLabel() + "\n");
          }
        };
    for (int i = 0; i < checkboxes.length; i++) checkboxes[i].addItemListener(checkbox_listener);

    // Create a list of choices.
    List list = new List(4, true);
    list.addItem("Java");
    list.addItem("C");
    list.addItem("C++");
    list.addItem("Smalltalk");
    list.addItem("Lisp");
    list.addItem("Modula-3");
    list.addItem("Forth");
    column1.add(new Label("Favorite languages:"));
    column1.add(list);
    // Handle events on this list
    list.addItemListener(
        new ItemListener() {
          public void itemStateChanged(ItemEvent e) {
            textarea.append("Your favorite languages are: ");
            String[] languages = ((List) e.getItemSelectable()).getSelectedItems();
            for (int i = 0; i < languages.length; i++) {
              if (i > 0) textarea.append(",");
              textarea.append(languages[i]);
            }
            textarea.append("\n");
          }
        });

    // Create a multi-line text area in column 2
    textarea = new TextArea(6, 40);
    textarea.setEditable(false);
    column2.add(new Label("Messages"));
    column2.add(textarea);

    // Create a scrollpane that displays portions of a larger component
    ScrollPane scrollpane = new ScrollPane();
    scrollpane.setSize(300, 150);
    column2.add(new Label("Scrolling Window"));
    column2.add(scrollpane);

    // Create a custom MultiLineLabel with a really big font and make it
    // a child of the ScrollPane container
    String message =
        "/*************************************************\n"
            + " * AllComponents.java                            *\n"
            + " * Written by David Flanagan                     *\n"
            + " * Copyright (c) 1997 by O'Reilly & Associates   *\n"
            + " *                                               *\n"
            + " *************************************************/\n";
    MultiLineLabel biglabel = new MultiLineLabel(message);
    biglabel.setFont(new Font("Monospaced", Font.BOLD + Font.ITALIC, 24));
    scrollpane.add(biglabel);
  }