source: trunk/src_apollo/org/apollo/widgets/AudioConfiguration.java@ 315

Last change on this file since 315 was 315, checked in by bjn8, 16 years ago

Apollo spin-off added
File size: 8.4 KB
Line 
1package org.apollo.widgets;
2
3import java.awt.Component;
4import java.awt.Dimension;
5import java.awt.Font;
6import java.awt.GridBagConstraints;
7import java.awt.GridBagLayout;
8import java.awt.Insets;
9import java.awt.event.ActionEvent;
10import java.awt.event.ActionListener;
11import java.util.List;
12
13import javax.sound.sampled.AudioSystem;
14import javax.sound.sampled.Mixer;
15import javax.swing.Box;
16import javax.swing.BoxLayout;
17import javax.swing.JCheckBox;
18import javax.swing.JComboBox;
19import javax.swing.JLabel;
20import javax.swing.JPanel;
21import javax.swing.JSlider;
22import javax.swing.event.ChangeEvent;
23import javax.swing.event.ChangeListener;
24
25import org.apollo.audio.ApolloPlaybackMixer;
26import org.apollo.audio.ApolloSubjectChangedEvent;
27import org.apollo.audio.SampledAudioManager;
28import org.apollo.mvc.Observer;
29import org.apollo.mvc.Subject;
30import org.apollo.mvc.SubjectChangedEvent;
31import org.expeditee.items.ItemParentStateChangedEvent;
32import org.expeditee.items.Text;
33import org.expeditee.items.widgets.InteractiveWidget;
34
35public class AudioConfiguration extends InteractiveWidget implements Observer {
36
37 private static MixerItem[] inputMixerItems = null;
38
39 private JComboBox inputMixureCombo;
40 private JSlider masterVolumeSlider;
41 private JCheckBox masterMuteCheckBox;
42 private JLabel inputMixerDescription;
43
44 public AudioConfiguration(Text source, String[] args) {
45 super(source, new JPanel(), 260, -1, 150, 150);
46
47 Font titleFont = new Font("Arial", Font.BOLD, 12);
48 Font descFont = new Font("Arial", Font.PLAIN, 12);
49
50 inputMixureCombo = new JComboBox(getInputMixerItems());
51
52 inputMixureCombo.addActionListener( new ActionListener() {
53 public void actionPerformed(ActionEvent e) {
54 if (inputMixerItems.length > 0) {
55 SampledAudioManager.getInstance().setCurrentInputMixure(
56 ((MixerItem)inputMixureCombo.getSelectedItem())._inf);
57 }
58 }
59 });
60
61 masterVolumeSlider = new JSlider();
62 masterVolumeSlider.setMinimum(0);
63 masterVolumeSlider.setMaximum(100);
64 masterVolumeSlider.setMaximumSize(new Dimension(300, 20));
65
66 masterVolumeSlider.addChangeListener(new ChangeListener() {
67 public void stateChanged(ChangeEvent e) {
68 float f = (float)masterVolumeSlider.getValue();
69 f /= 100.0f;
70 ApolloPlaybackMixer.getInstance().setMasterVolume(f);
71 }
72 });
73
74 masterMuteCheckBox = new JCheckBox();
75 masterMuteCheckBox.setText("Master Mute");
76 masterMuteCheckBox.addChangeListener(new ChangeListener() {
77 public void stateChanged(ChangeEvent e) {
78 ApolloPlaybackMixer.getInstance().setMasterMute(masterMuteCheckBox.isSelected());
79 }
80 });
81
82
83 inputMixerDescription = new JLabel();
84 inputMixerDescription.setFont(descFont);
85
86 JLabel masterVolumeLevelLabel = new JLabel("Master volume:");
87 masterVolumeLevelLabel.setFont(titleFont);
88
89 JLabel deviceLabel = new JLabel("Input device:");
90 deviceLabel.setFont(titleFont);
91 // Assemble
92 JPanel mixerPane = new JPanel(new GridBagLayout());
93
94
95
96 GridBagConstraints c = new GridBagConstraints();
97 c.gridx = 0;
98 c.gridy = 0;
99 c.fill = GridBagConstraints.BOTH;
100 c.insets = new Insets(0,10,0,0);
101 mixerPane.add(deviceLabel, c);
102
103 c = new GridBagConstraints();
104 c.gridx = 1;
105 c.gridy = 0;
106 c.weightx = 1.0f;
107 c.fill = GridBagConstraints.BOTH;
108 c.insets = new Insets(0,10,0,10);
109 mixerPane.add(inputMixureCombo, c);
110
111 mixerPane.setAlignmentX(Component.CENTER_ALIGNMENT);
112 masterVolumeLevelLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
113 inputMixerDescription.setAlignmentX(Component.CENTER_ALIGNMENT);
114 masterVolumeSlider.setAlignmentX(Component.CENTER_ALIGNMENT);
115 masterMuteCheckBox.setAlignmentX(Component.CENTER_ALIGNMENT);
116
117 _swingComponent.add(Box.createRigidArea(new Dimension(1, 12)));
118 _swingComponent.setLayout(new BoxLayout(_swingComponent, BoxLayout.Y_AXIS));
119 _swingComponent.add(mixerPane);
120 _swingComponent.add(Box.createRigidArea(new Dimension(1, 4)));
121 _swingComponent.add(inputMixerDescription);
122 _swingComponent.add(Box.createRigidArea(new Dimension(1, 12)));
123 _swingComponent.add(masterVolumeLevelLabel);
124 _swingComponent.add(masterVolumeSlider);
125 _swingComponent.add(Box.createRigidArea(new Dimension(1, 12)));
126 _swingComponent.add(masterMuteCheckBox);
127 _swingComponent.add(Box.createRigidArea(new Dimension(1, 12)));
128
129
130
131 // Set state to match SampledAudioManager
132 updateSelectedMixers();
133 updateMasterVolumeControl();
134 updateMasterMuteControl();
135
136 _swingComponent.doLayout();
137
138 }
139
140 @Override
141 protected void onParentStateChanged(int eventType) {
142 super.onParentStateChanged(eventType);
143
144 switch (eventType) {
145
146 case ItemParentStateChangedEvent.EVENT_TYPE_REMOVED:
147 case ItemParentStateChangedEvent.EVENT_TYPE_REMOVED_VIA_OVERLAY:
148 case ItemParentStateChangedEvent.EVENT_TYPE_HIDDEN:
149 ApolloPlaybackMixer.getInstance().removeObserver(this);
150 SampledAudioManager.getInstance().removeObserver(this);
151 break;
152
153 case ItemParentStateChangedEvent.EVENT_TYPE_ADDED:
154 case ItemParentStateChangedEvent.EVENT_TYPE_ADDED_VIA_OVERLAY:
155 case ItemParentStateChangedEvent.EVENT_TYPE_SHOWN:
156 case ItemParentStateChangedEvent.EVENT_TYPE_SHOWN_VIA_OVERLAY:
157 ApolloPlaybackMixer.getInstance().addObserver(this);
158 SampledAudioManager.getInstance().addObserver(this);
159 break;
160
161 }
162 }
163
164
165 /**
166 * Syncs the I/O mixer combos to the current I/O mixers set in the SampledAudioManager
167 *
168 */
169 private void updateSelectedMixers() {
170
171 // Update selected input mixer
172 Mixer.Info inf = SampledAudioManager.getInstance().getCurrentInputMixureInfo();
173
174 for (MixerItem mi : inputMixerItems) {
175 if (mi._inf.equals(inf)) {
176 if (inputMixureCombo.getSelectedItem() != mi)
177 inputMixureCombo.setSelectedItem(mi);
178 }
179 }
180
181 /*StringBuilder desc = new StringBuilder(inf.getDescription().length());
182 int i = 0;
183 final int CUTTOFF_LENGTH = 10;
184 while (i < inf.getDescription().length()) {
185 String part = null;
186
187 if ((i + CUTTOFF_LENGTH) > inf.getDescription().length()) {
188 part = inf.getDescription().substring(i);
189 } else {
190 part = inf.getDescription().substring(i, i + CUTTOFF_LENGTH);
191 }
192 desc.append(part);
193 desc.append('\n');
194 i += CUTTOFF_LENGTH;
195 }*/
196
197 inputMixerDescription.setText(inf.getDescription());
198
199 }
200
201 /**
202 * Synchs volumeSlider with master volume state.
203 */
204 private void updateMasterVolumeControl() {
205
206 int mv = (int)(ApolloPlaybackMixer.getInstance().getMasterVolume() * 100.0f);
207
208 if (masterVolumeSlider.getValue() != mv) {
209 masterVolumeSlider.setValue(mv);
210 }
211
212 }
213
214 /**
215 * Synchs mute checkbox with master mute state.
216 */
217 private void updateMasterMuteControl() {
218
219 if (this.masterMuteCheckBox.isSelected() != ApolloPlaybackMixer.getInstance().isMasterMuteOn()) {
220 masterMuteCheckBox.setSelected(!masterMuteCheckBox.isSelected());
221 }
222
223 if (masterMuteCheckBox.isSelected()) {
224 masterMuteCheckBox.setText("Master Mute (on)");
225 } else {
226 masterMuteCheckBox.setText("Master Mute (off)");
227 }
228
229 }
230
231
232 @Override
233 protected String[] getArgs() {
234 return null;
235 }
236
237 /**
238 * Obtain currently available mixers to choose from
239 */
240 private MixerItem[] getInputMixerItems() {
241
242 List<Mixer.Info> mixers;
243
244 if (inputMixerItems == null) {
245
246 mixers = SampledAudioManager.getInstance().getSupportedInputMixures();
247 inputMixerItems = new MixerItem[mixers.size()];
248 for (int i = 0; i < inputMixerItems.length; i++) {
249 inputMixerItems[i] = new MixerItem(mixers.get(i));
250 }
251
252 }
253 return inputMixerItems;
254 }
255
256 public Subject getObservedSubject() {
257 return SampledAudioManager.getInstance();
258 }
259
260 public void modelChanged(Subject source, SubjectChangedEvent event) {
261
262 switch (event.getID()) {
263 case ApolloSubjectChangedEvent.VOLUME:
264 updateMasterVolumeControl();
265 break;
266 case ApolloSubjectChangedEvent.MUTE:
267 updateMasterMuteControl();
268 break;
269 case ApolloSubjectChangedEvent.INPUT_MIXER:
270 updateSelectedMixers();
271 break;
272 }
273
274 }
275
276 public void setObservedSubject(Subject parent) {
277 }
278
279
280 /**
281 * Used by combobox for selecting a mixer
282 * @author Brook Novak
283 */
284 class MixerItem {
285
286 Mixer.Info _inf;
287 int targetlineCount;
288
289 MixerItem(Mixer.Info inf) {
290 if (inf == null) throw new NullPointerException("inf");
291 _inf = inf;
292 targetlineCount = AudioSystem.getMixer(_inf).getTargetLineInfo().length;
293 }
294
295 @Override
296 public String toString() {
297 return _inf.getName();
298 // return _inf.getVendor() + " " +_inf.getName() + " " +_inf.getVersion();
299 //return _inf.getDescription() + " [" + targetlineCount + " target lines]";
300 }
301
302 }
303}
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