JMediaPlayerControlFrame.java

import org.datavyu.plugins.MediaPlayer;
import org.datavyu.plugins.MediaPlayerWindow;
import org.datavyu.plugins.PlaybackRateController;

import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

public class JMediaPlayerControlFrame extends JFrame implements KeyListener, ChangeListener {

  private MediaPlayer mediaPlayer;
  private JSlider jSlider;

  JMediaPlayerControlFrame(MediaPlayer mediaPlayer) {
    this.mediaPlayer = mediaPlayer;
    jSlider = new JSlider(0, (int) mediaPlayer.getDuration(), 0);
    jSlider.setFocusable(false);
    jSlider.addChangeListener(this);
    add(jSlider, BorderLayout.SOUTH);
    addKeyListener(this);
    pack();
    setSize(640, 480);
    setVisible(true);
  }

  @Override
  public void keyTyped(KeyEvent e) {}

  @Override
  public void keyPressed(KeyEvent e) {
    double currentTime, nextTime;
    float currentVolume, nextVolume;
    float currentRate, nextRate;
    int frameNB;
    double step = (1.0 / mediaPlayer.getFps());
    currentRate = mediaPlayer.getRate();
    switch (e.getKeyCode()) {
      case KeyEvent.VK_NUMPAD5:
        System.out.println("Stop");
        mediaPlayer.stop();
        break;
      case KeyEvent.VK_NUMPAD8:
        System.out.println("Play");
        mediaPlayer.play();
        break;
      case KeyEvent.VK_NUMPAD2:
        System.out.println("Pause");
        mediaPlayer.pause();
        break;
      case KeyEvent.VK_S:
        System.out.println("Step Forward");
        mediaPlayer.stepForward();
        break;
      case KeyEvent.VK_D:
        System.out.println("Step Backward");
        mediaPlayer.stepBackward();
        System.out.println("Finished backward step");
        break;
      case KeyEvent.VK_I:
        System.out.println(
            "Player State "
                + mediaPlayer.getState()
                + " Stream Information : Fps = "
                + mediaPlayer.getFps()
                + " Image Width = "
                + mediaPlayer.getImageWidth()
                + " Image Height = "
                + mediaPlayer.getImageHeight()
                + " Stream Duration = "
                + mediaPlayer.getDuration()
                + " Presentation Time = "
                + mediaPlayer.getPresentationTime());
        break;
      case KeyEvent.VK_NUMPAD6:
        nextRate = PlaybackRateController.stepToFaster(currentRate);
        System.out.println("Change rate from " + currentRate + " to " + nextRate);
        mediaPlayer.setRate(nextRate);
        break;
      case KeyEvent.VK_NUMPAD4:
        nextRate = PlaybackRateController.stepToSlower(currentRate);
        System.out.println("Change rate from " + currentRate + " to " + nextRate);
        mediaPlayer.setRate(nextRate);
        break;
      case KeyEvent.VK_SPACE:
        System.out.println("Toggle Pause");
        mediaPlayer.togglePause();
        break;
      case KeyEvent.VK_LEFT:
        currentTime = mediaPlayer.getPresentationTime();
        nextTime = currentTime - 1;
        System.out.println("Seek from " + currentTime + " sec to " + nextTime + "sec");
        mediaPlayer.seek(nextTime);
        break;
      case KeyEvent.VK_RIGHT:
        currentTime = mediaPlayer.getPresentationTime();
        nextTime = currentTime + 1;
        System.out.println("Seek from " + currentTime + " sec to " + nextTime + "sec");
        mediaPlayer.seek(nextTime);
        break;
      case KeyEvent.VK_UP:
        currentTime = mediaPlayer.getPresentationTime();
        nextTime = currentTime + 5;
        System.out.println("Seek from " + currentTime + " sec to " + nextTime + "sec");
        mediaPlayer.seek(nextTime);
        break;
      case KeyEvent.VK_DOWN:
        currentTime = mediaPlayer.getPresentationTime();
        nextTime = currentTime - 5;
        System.out.println("Seek from " + currentTime + " sec to " + nextTime + "sec");
        mediaPlayer.seek(nextTime);
        break;
      case KeyEvent.VK_0:
        currentVolume = mediaPlayer.getVolume();
        nextVolume = currentVolume - 0.1F;
        System.out.println("Change volume from " + currentVolume + " dB to " + nextVolume + " dB");
        mediaPlayer.setVolume(nextVolume);
        break;
      case KeyEvent.VK_9:
        currentVolume = mediaPlayer.getVolume();
        nextVolume = currentVolume + 0.1F;
        System.out.println("Change volume from " + currentVolume + " dB to " + nextVolume + " dB");
        mediaPlayer.setVolume(nextVolume);
        break;
      case KeyEvent.VK_M:
        System.out.println("Mute");
        mediaPlayer.setMute(true);
        break;
      case KeyEvent.VK_N:
        System.out.println("Un-mute");
        mediaPlayer.setMute(false);
        break;
      case KeyEvent.VK_H:
        System.out.println("Hide Window");
        ((MediaPlayerWindow) mediaPlayer).hideWindow();
        break;
      case KeyEvent.VK_J:
        System.out.println("Show Window");
        ((MediaPlayerWindow) mediaPlayer).showWindow();
        break;
      case KeyEvent.VK_ESCAPE:
        mediaPlayer.dispose();
        System.exit(0);
        System.out.println("Dispose the media player");
      default:
        System.err.println("Unrecognized event " + e.paramString());
    }
  }

  @Override
  public void keyReleased(KeyEvent e) {}

  @Override
  public void stateChanged(ChangeEvent e) {
    int newTime = jSlider.getValue();
    double currentTime = mediaPlayer.getPresentationTime();
    System.out.println("Seek from " + currentTime + " sec to " + newTime + "sec");
    mediaPlayer.seek(newTime);
  }

  public void handleKeyEvents(final int javaKeyCode) {
    this.dispatchEvent(new KeyEvent(this, KeyEvent.KEY_PRESSED, System.currentTimeMillis(), 0, javaKeyCode, KeyEvent.CHAR_UNDEFINED));
  }
}