tim/prune/gui/AudioListener.java

   1 package tim.prune.gui;
   2
   3 import java.awt.event.ActionEvent;
   4 import java.awt.event.ActionListener;
   5
   6 import javax.swing.JProgressBar;
   7
   8 import tim.prune.FunctionLibrary;
   9 import tim.prune.function.PlayAudioFunction;
  10
  11 /**
  12  * Class to update the supplied progress bar on the basis of
  13  * the currently playing audio clip (if any)
  14  */
  15 public class AudioListener implements Runnable, ActionListener
  16 {
  17         /** progress bar */
  18         private JProgressBar _progressBar = null;
  19
  20         /**
  21          * Constructor
  22          * @param inBar progress bar object to update
  23          */
  24         public AudioListener(JProgressBar inBar) {
  25                 _progressBar = inBar;
  26         }
  27
  28         /**
  29          * React to button press
  30          */
  31         public void actionPerformed(ActionEvent inEvent) {
  32                 new Thread(this).start();
  33         }
  34
  35         /**
  36          * Loop and update progress bar
  37          */
  38         public void run()
  39         {
  40                 int progress = 0;
  41                 while (progress >= 0)
  42                 {
  43                         try {
  44                                 Thread.sleep(400);
  45                         }
  46                         catch (InterruptedException e) {}
  47                         progress = ((PlayAudioFunction) FunctionLibrary.FUNCTION_PLAY_AUDIO).getPercentage();
  48                         _progressBar.setVisible(progress >= 0);
  49                         _progressBar.setValue(progress);
  50                 }
  51         }
  52 }