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/Users/lyon/j4p/src/sound/soundDemo/JavaSound.java
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1 package sound.soundDemo;
2 // sound.soundDemo.JavaSound
3
4 /*
5 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
6 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
7 */
8
9
10 import javax.sound.midi.MidiSystem;
11 import javax.sound.sampled.AudioSystem;
12 import javax.swing.*;
13 import javax.swing.border.BevelBorder;
14 import javax.swing.border.CompoundBorder;
15 import javax.swing.border.EmptyBorder;
16 import javax.swing.event.ChangeEvent;
17 import javax.swing.event.ChangeListener;
18 import java.awt.*;
19 import java.awt.event.ActionEvent;
20 import java.awt.event.ActionListener;
21 import java.awt.event.WindowAdapter;
22 import java.awt.event.WindowEvent;
23 import java.io.File;
24 import java.util.Vector;
25
26
27 /**
28 * The Java Sound Samples : MidiSynth, Juke, CapturePlaybackPanel, Groove.
29 *
30 * @version @(#)JavaSound.java 1.17 02/02/06
31 * @author Brian Lichtenwalter
32 */
33 public class JavaSound implements ChangeListener, Runnable {
34
35 Vector demoVector = new Vector(4);
36 JTabbedPane tabPane = new JTabbedPane();
37 int width = 760, height = 500;
38 int index;
39 private final MyJPanel jPanel = new MyJPanel();
40
41 public MyJPanel getPanel() {
42 return jPanel;
43 }
44
45
46 public JavaSound(String audioDirectory) {
47
48 jPanel.setLayout(new BorderLayout());
49
50 JMenuBar menuBar = new JMenuBar();
51
52 if (JavaSoundApplet.applet == null) {
53 JMenu fileMenu = (JMenu) menuBar.add(new JMenu("File"));
54 JMenuItem item = (JMenuItem) fileMenu.add(new JMenuItem("Exit"));
55 item.addActionListener(new ActionListener() {
56 public void actionPerformed(ActionEvent e) {
57 System.exit(0);
58 }
59 });
60 }
61 JMenu options = (JMenu) menuBar.add(new JMenu("Options"));
62 JMenuItem item = (JMenuItem) options.add(new JMenuItem("Applet Info"));
63 item.addActionListener(new ActionListener() {
64 public void actionPerformed(ActionEvent e) {
65 showInfoDialog();
66 }
67 });
68 jPanel.add(menuBar, BorderLayout.NORTH);
69
70 tabPane.addChangeListener(this);
71
72 EmptyBorder eb = new EmptyBorder(5, 5, 5, 5);
73 BevelBorder bb = new BevelBorder(BevelBorder.LOWERED);
74 CompoundBorder cb = new CompoundBorder(eb, bb);
75 JPanel p = new JPanel(new BorderLayout());
76 p.setBorder(new CompoundBorder(cb, new EmptyBorder(0, 0, 90, 0)));
77 final Juke juke = new Juke(audioDirectory);
78 p.add(juke);
79 demoVector.add(juke);
80 tabPane.addTab("Juke Box", p);
81
82 new Thread(this).start();
83
84 jPanel.add(tabPane, BorderLayout.CENTER);
85 }
86
87
88 public void stateChanged(ChangeEvent e) {
89 close();
90 System.gc();
91 index = tabPane.getSelectedIndex();
92 open();
93 }
94
95
96 public void close() {
97 ((ControlContext) demoVector.get(index)).close();
98 }
99
100
101 public void open() {
102 ((ControlContext) demoVector.get(index)).open();
103 }
104
105
106 public static void showInfoDialog() {
107 final String msg =
108 "When running the Java Sound demo as an applet these permissions\n" +
109 "are necessary in order to load/save files and record audio : \n\n" +
110 "grant { \n" +
111 " permission java.io.FilePermission \"<<ALL FILES>>\", \"read, write\";\n" +
112 " permission javax.sound.sampled.AudioPermission \"record\"; \n" +
113 " permission java.util.PropertyPermission \"user.dir\", \"read\";\n" +
114 "}; \n\n" +
115 "The permissions need to be added to the .java.policy file.";
116 new Thread(new Runnable() {
117 public void run() {
118 JOptionPane.showMessageDialog(null, msg, "Applet Info", JOptionPane.INFORMATION_MESSAGE);
119 }
120 }).start();
121 }
122
123
124 /**
125 * Lazy load the tabbed pane with CapturePlaybackPanel, MidiSynth and Groove.
126 */
127 public void run() {
128 EmptyBorder eb = new EmptyBorder(5, 5, 5, 5);
129 BevelBorder bb = new BevelBorder(BevelBorder.LOWERED);
130 CompoundBorder cb = new CompoundBorder(eb, bb);
131 addCapturePlaybackPanel();
132 JPanel p;
133 MidiSynth midiSynth = new MidiSynth();
134 demoVector.add(midiSynth);
135 tabPane.addTab("Midi Synthesizer", midiSynth);
136
137 p = new JPanel(new BorderLayout());
138 p.setBorder(new CompoundBorder(cb, new EmptyBorder(0, 0, 5, 20)));
139 Groove groove = new Groove();
140 demoVector.add(groove);
141 p.add(groove);
142 tabPane.addTab("Groove Box", p);
143 }
144
145 private void addCapturePlaybackPanel() {
146 JPanel p = getCapturePlaybackPanel();
147 tabPane.addTab("Capture/Playback", p);
148 }
149
150 public JPanel getCapturePlaybackPanel() {
151 JPanel p = new JPanel(new BorderLayout());
152
153 CapturePlaybackPanel capturePlaybackPanel = new CapturePlaybackPanel();
154 demoVector.add(capturePlaybackPanel);
155 p.add(capturePlaybackPanel);
156 return p;
157 }
158
159 public static void main(String[] args) {
160
161 checkAudio();
162
163 String media = "media";
164 if (args.length > 0) {
165 File file = new File(args[0]);
166 if (file == null && !file.isDirectory()) {
167 System.out.println("usage: java JavaSound audioDirectory");
168 } else {
169 media = args[0];
170 }
171 }
172
173 final JavaSound demo = new JavaSound(media);
174 JFrame f = new JFrame("Java Sound Demo");
175 f.addWindowListener(new WindowAdapter() {
176 public void windowClosing(WindowEvent e) {
177 System.exit(0);
178 }
179
180 public void windowDeiconified(WindowEvent e) {
181 demo.open();
182 }
183
184 public void windowIconified(WindowEvent e) {
185 demo.close();
186 }
187 });
188 f.getContentPane().add("Center", demo.jPanel);
189 f.pack();
190 Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
191 f.setLocation(d.width / 2 - demo.width / 2, d.height / 2 - demo.height / 2);
192 f.setSize(new Dimension(demo.width, demo.height));
193 f.setVisible(true);
194 }
195
196 private static void checkAudio() {
197 try {
198 if (MidiSystem.getSequencer() == null) {
199 System.err.println("MidiSystem Sequencer Unavailable, exiting!");
200 System.exit(1);
201 } else if (AudioSystem.getMixer(null) == null) {
202 System.err.println("AudioSystem Unavailable, exiting!");
203 System.exit(1);
204 }
205 } catch (Exception ex) {
206 ex.printStackTrace();
207 System.exit(1);
208 }
209 }
210
211 private class MyJPanel extends JPanel {
212 public Dimension getPreferredSize() {
213 return new Dimension(JavaSound.this.width, JavaSound.this.height);
214 }
215 }
216 }
217