| author | Jaroslav Tulach <jtulach@netbeans.org> |
| Wed, 08 Aug 2012 22:42:33 +0200 | |
| changeset 394 | ee6bd6cf2bf3 |
| parent 393 | 5319f085d966 |
| permissions | -rw-r--r-- |
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package org.apidesign.samples; |
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// BEGIN: xmms.java.api.ext |
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import org.apidesign.samples.XMMS.Playback.Volume; |
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// BEGIN: xmms.java.api |
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public final class XMMS {
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public void play() {
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doPlay(); |
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} |
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public void pause() {
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doPause(); |
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} |
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public void addToPlaylist(String file) {
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doAddToPlaylist(file); |
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} |
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// FINISH: xmms.java.api |
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/** @since 2.0 we can also control volume */ |
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public void setVolume(int volume) {
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doSetVolume(volume); |
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} |
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// FINISH: xmms.java.api.ext |
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// BEGIN: xmms.java.spi.ext |
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// BEGIN: xmms.java.spi |
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interface Playback {
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public void playback(byte[] data); |
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// FINISH: xmms.java.spi |
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/** @since 2.0 we can also control volume */ |
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interface Volume extends Playback {
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public void setVolume(int volume); |
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} |
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} |
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// END: xmms.java.spi.ext |
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public void registerPlayback(Playback callback) {
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this.callback = callback; |
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} |
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private Playback callback; |
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private void doAddToPlaylist(String file) {
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} |
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private void doPause() {
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} |
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private void doPlay() {
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callback.playback("Play!".getBytes());
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} |
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// BEGIN: xmms.java.spi.instanceof |
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private void doSetVolume(int volume) {
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if (callback instanceof Volume) {
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Volume pv = (Volume) callback; |
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pv.setVolume(volume); |
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} |
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} |
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// END: xmms.java.spi.instanceof |
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// |
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// Usage |
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// |
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public static void main(String[] args) {
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XMMS xmms = new XMMS(); |
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// BEGIN: xmms.java.use |
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class MyCallbackPrints implements XMMS.Playback {
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public void playback(byte[] data) {
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System.out.println(new String(data)); |
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} |
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} |
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xmms.registerPlayback(new MyCallbackPrints()); |
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// END: xmms.java.use |
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} |
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} |