Play sound on record (#7)

* play MP3 file on record

- hard coded file name
- minimum error check
- Update launch.json
- playAtRecord.mp3

* sleep 5s for MP3 file to load

* Read and play a WAV

- delay on start with W10 computers might be cancelled

* Refactoring with SoundPlayer Class

* Add *.csv in gitignore (but keep them in repo)

- git update-index --skip-worktree data.csv
- git update-index --skip-worktree marker.csv

* Delete playAtRecord.mp3

* v1.3.0

.gitignore

@@ -85,3 +85,6 @@ Temporary Items
 
 old/
 *.dylib
+
+# do not track output files 
+*.csv

.vscode/launch.json

@@ -16,7 +16,7 @@
             //"args": "-screenDiagonal 356 -task linear -halfPeriod 1750 -tabletSize 311x216=62200x43200"
             //"args": "-screenDiagonal 356 -task linear -halfPeriod 1750 -tabletSize 166x100=16588x10000 "
             //"args": "-screenDiagonal 356 -task circular -halfPeriod 1750 -tabletSize 311x216=62200x43200 -circlePerimeter_mm 300  -indexOfDifficulty 10000"
-            "args": "-screenDiagonal 356 -task linear -halfPeriod 1750 -tabletSize 311x216=62200x43200"
+            //"args": "-screenDiagonal 356 -task linear -halfPeriod 1750 -tabletSize 311x216=62200x43200"
 
             // "args": "-screenDiagonal 356 -task linear -halfPeriod 1750 "
             // "args": "-screenDiagonal 356 -task linear  -halfPeriod 1750"

src/fr/lgi2p/digit/MainWindow.java

@@ -21,13 +21,15 @@
 //import fr.lgi2p.digit.LSL.simple.LSLSendData;
 import fr.lgi2p.digit.conf.Configuration;
 import fr.lgi2p.digit.conf.Consts;
-import fr.lgi2p.digit.output.OutputMouse;
+import fr.lgi2p.digit.output.*;
 import fr.lgi2p.digit.ui.DisplayTask;
 import fr.lgi2p.digit.ui.PerformanceAtTask;
 import fr.lgi2p.digit.util.Util;
 
 public final class MainWindow implements MouseMotionListener, MouseListener, KeyListener, ActionListener {
 
+	SoundPlayer soundPlayer; 
+
 	Calibration calibration;
 
 	static enum CyclingStatus {
@@ -103,10 +105,11 @@ public static MainWindow getInstance() {
 		return instance;
 	}
 
+
 	private MainWindow(Configuration configuration) {
 		this.configuration = configuration;
-		//this.outputMouse = new OutputMouse(configuration);
-		this.outputMouse = getOutputMouse();
+		this.outputMouse = new OutputMouse(configuration);
+		this.soundPlayer = new SoundPlayer(); 
 
 		macOsSpecification();
 	}
@@ -289,13 +292,13 @@ private void DoCycleChange() {
 			if (NbRecDone <= NbRestDone) {
 				outputMouse.writeMarker("DoCycleChange:DoRecord" + Message);
 				outputMouse.writeNumericMarker(RECORD_MARKER);
+				soundPlayer.start(); 
 				actionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "record"));
 			} else {
 				outputMouse.writeMarker("DoCycleChange:DoPause" + Message);
-				outputMouse.writeNumericMarker(PAUSE_MARKER); // marker for sync with external devices reading only
-																// integers
-				outputMouse.writeData(0L, 0, 0, false); // show the end of a record with an "all zero line" to ease
-														// parsing the output file
+				outputMouse.writeNumericMarker(PAUSE_MARKER); // marker for external devices reading only integers
+				outputMouse.writeData(0L, 0, 0, false); // show the end of a record with an "all zero line" 
+				soundPlayer.stop();					
 				actionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "pause"));
 			}
 		}

src/fr/lgi2p/digit/output/SoundPlayer.java

@@ -0,0 +1,48 @@
+package fr.lgi2p.digit.output;
+
+import java.io.File;
+import javax.sound.sampled.*;
+
+public class SoundPlayer {
+    String fname = "playAtRecord.wav"; 
+    Clip soundPlayer = null; 
+    File audioFile = null; 
+
+    public SoundPlayer() {
+        this.audioFile = new File(fname); 
+
+		if(audioFile.exists() && !audioFile.isDirectory()) { 
+            System.out.println("playAtRecord.wav found... "); 
+			try {
+				soundPlayer = AudioSystem.getClip();
+				AudioInputStream audioIn = AudioSystem.getAudioInputStream(this.audioFile);
+				soundPlayer.open(audioIn);
+
+				System.out.println("playAtRecord.wav is loading... "); 
+				double secondsInAudio = (double) soundPlayer.getMicrosecondLength() / 1000000.0; 
+				System.out.println("playAtRecord.wav lasts " + secondsInAudio + " seconds"); 
+			} catch (Exception e) {
+				System.err.println(e.getMessage());
+			}
+		}
+    }
+
+    public void start(){
+        if (soundPlayer != null) {
+            soundPlayer.setMicrosecondPosition(0); 
+            soundPlayer.start(); 
+        }
+    }
+
+    public void stop(){
+        if (soundPlayer != null) {
+            soundPlayer.stop();
+        }     
+    }
+
+    public void resume(){
+        if (soundPlayer != null) {
+            soundPlayer.start(); 
+        }
+    }
+}