Source Code Cross Referenced for SimpleApplet.java in  » Testing » abbot-1.0.1 » example » Java Source Code / Java DocumentationJava Source Code and Java Documentation

01:        package example;
02:
03:        import java.applet.Applet;
04:        import java.awt.*;
05:        import java.awt.event.*;
06:
07:        /** A very simple AWT-based applet.  See applet.xml and applet.hmlt.<p>
08:         <blockquote><code><pre>
09:         &lt;applet code="example.SimpleApplet" width=250 height&gt;
10:         &lt;/applet&gt;
11:         </pre></code></blockquote>
12:         <p>
13:         @author kelvinr@users.sourceforge.net, twall@users.sourceforge.net
14:         */
15:
16:        public class SimpleApplet extends Applet {
17:
18:            String msg = "This is a simple applet";
19:
20:            public void init() {
21:                Label push = new Label("Press a button");
22:                final Button hi = new Button("High");
23:                final Button lo = new Button("Low");
24:                final Button show = new Button("?");
25:                Component parent = this ;
26:                while (parent.getParent() != null) {
27:                    parent = parent.getParent();
28:                }
29:                if (!(parent instanceof  Frame))
30:                    parent = new Frame("Dummy Frame");
31:                final Dialog dialog = new Dialog((Frame) parent, "Dialog", true);
32:                dialog.add(new Label("This is a dialog"));
33:                dialog.addWindowListener(new WindowAdapter() {
34:                    public void windowClosing(WindowEvent we) {
35:                        we.getWindow().setVisible(false);
36:                    }
37:                });
38:
39:                // Adds labels and buttons to applet window 
40:                add(push);
41:                add(hi);
42:                add(lo);
43:                add(show);
44:                add(new TextField("text here"));
45:
46:                ActionListener al = new ActionListener() {
47:                    public void actionPerformed(ActionEvent ae) {
48:                        if (ae.getSource() == hi) {
49:                            msg = "Up, up and away!";
50:                        } else if (ae.getSource() == lo) {
51:                            msg = "How low can you go?";
52:                        } else {
53:                            dialog.pack();
54:                            dialog.setVisible(true);
55:                        }
56:                        repaint();
57:                    }
58:                };
59:                hi.addActionListener(al);
60:                lo.addActionListener(al);
61:                show.addActionListener(al);
62:
63:                tagThread("applet init");
64:                javax.swing.SwingUtilities.invokeLater(new Runnable() {
65:                    public void run() {
66:                        tagThread("example.SimpleApplet");
67:                    }
68:                });
69:            }
70:
71:            private void tagThread(String tag) {
72:                Thread thread = Thread.currentThread();
73:                String name = thread.getName();
74:                thread.setName(name + " (" + tag + ")");
75:            }
76:
77:            public String getMessage() {
78:                return msg;
79:            }
80:
81:            public void paint(Graphics g) {
82:                g.drawString(getMessage(), 20, 120);
83:            }
84:
85:        }