• Author / Uploaded
• Gerardo Torrado Diez de Bonilla

Citation preview

package sepm.juicer.audio; import import import import

java.io.File; java.sql.Time; java.util.ArrayList; java.util.Map;

import javax.swing.JLabel; import javax.swing.JSlider; import import import import import import import

javazoom.jlgui.basicplayer.BasicController; javazoom.jlgui.basicplayer.BasicPlayer; javazoom.jlgui.basicplayer.BasicPlayerEvent; javazoom.jlgui.basicplayer.BasicPlayerException; javazoom.jlgui.basicplayer.BasicPlayerListener; sepm.juicer.audio.listener.MediaPlayerListener; sepm.juicer.bo.MP3Data;

/** * * This Class is the basic class of the Audioplayer implementation.
* It doesn't include any of Gui Component. On this Class will be only the * functional methods of an Audio included. * *
* * Futures are :
* play , stop , seek , Volume(up-down) * *
* * To see for more information Methods declarations. * * @author Hasan Oezdemir * @version 1.0 * */ public class MP3Player implements BasicPlayerListener , MediaPlayerListener { private BasicPlayer player = null; private ArrayList< MediaPlayerListener > listener = null; private float volume = 0.3F; private long curPos = 0; private boolean stopped = false; private boolean seeking = false; private MP3Data data; private JSlider slider; private JLabel actualTime; /** * Default Constructor.

* * @param slider */ public MP3Player( JSlider slider , JLabel actualTime ) { this.slider = slider; this.actualTime = actualTime; this.listener = new ArrayList< MediaPlayerListener >(); player = new BasicPlayer(); player.addBasicPlayerListener( this ); } /** * * @param mpl */ public void addMediaPlayerListener( MediaPlayerListener mpl ) { listener.add( mpl ); } /** * * @return the actual Position of the Song */ public long getPosition() { return curPos; } /** * * @return the actual Status of Song. It could be such as ( play , stop ) * but with an Integer constant */ public int getState() { return player.getStatus(); } /** * * @return the actual Volume. */ public float getVolume() { return volume; } public void opened( Object arg0 , Map arg1 ) { } /**

* * @throws BasicPlayerException */ public void pause() throws BasicPlayerException { player.pause(); } /** * Plays the actual Song on the Buffer.
* This Method plays a Song with Position '0(zero)' * * @throws BasicPlayerException */ public void play() throws BasicPlayerException { play( 0 ); } /** * Plays actual Song with Skipping the Seconds. * * @param seconds * @throws BasicPlayerException */ public void play( long seconds ) throws BasicPlayerException { stop(); if ( data == null ) throw new BasicPlayerException( "Kein MP3 gefunden" ); File f = new File( data.getPath() ); if( !f.exists() ) throw new BasicPlayerException( "MP3 nicht gefun den." ); player.open( f ); setPosition( seconds ); player.play(); setCurVolume(); } /* * (non-Javadoc) * * @see javazoom.jlgui.basicplayer.BasicPlayerListener#progress(int, lon g, * byte[], java.util.Map) */ public void progress( int arg0 , long microseconds , byte [] arg2 , Map arg3 ) { slider.setValue( ( int ) microseconds / 1000 );

Time time = new Time( microseconds / 1000 ); actualTime.setText( time.toString().substring( 3 ) ); } /** * * @param mpl */ public void removeMediaPlayerListener( MediaPlayerListener mpl ) { listener.remove( mpl ); } /** * * @throws BasicPlayerException */ public void resume() throws BasicPlayerException { player.resume(); } /** * * @param byt * @throws BasicPlayerException */ public void seek( long byt ) throws BasicPlayerException { player.seek( byt ); } /* * (non-Javadoc) * * @see * javazoom.jlgui.basicplayer.BasicPlayerListener#setController(javazoom * .jlgui.basicplayer.BasicController) */ public void setController( BasicController arg0 ) { } /** * Sets the current Volume. * * @see #setVolume(float) * * @throws BasicPlayerException */ private void setCurVolume() throws BasicPlayerException { if ( player != null && player.getStatus() != BasicPlayer.STOPPED && player.hasGainControl() ) { player.setGain( volume ); } }

/** * Sets a MP3Data MusicData , that will be played. * * @param data * @throws BasicPlayerException */ public void setData( MP3Data data ) throws BasicPlayerException { this.data = data; } /** * Sets the Position of actual Song. * * @see #seek(long) * @param pos * @throws BasicPlayerException */ public void setPosition( long pos ) throws BasicPlayerException { if ( player != null && player.getStatus() != BasicPlayer.STOPPED ) { seeking = true; player.seek( pos ); seeking = false; } } /** * Sets , which of Slider will be used.
* It should be a Slider for showing the currently Position of Song. * * @param slider */ public void setSlider( JSlider slider ) { this.slider = slider; } /** * * @param stopped */ public void setStopped( boolean stopped ) { this.stopped = stopped; } /** * Sets Volume up or down. * * @param volume * @throws BasicPlayerException */ public void setVolume( float volume ) throws BasicPlayerException { this.volume = volume; setCurVolume(); }

/** * */ @Override public void songEnded() { } /** * If the Song finished , will be all of MediaplayerListeners notified. */ public void songFinished() { for ( MediaPlayerListener mpl : listener ) { mpl.songEnded(); } } /* * (non-Javadoc) * * @see * javazoom.jlgui.basicplayer.BasicPlayerListener#stateUpdated(javazoom. * jlgui.basicplayer.BasicPlayerEvent) */ public void stateUpdated( BasicPlayerEvent arg0 ) { if ( player.getStatus() == BasicPlayer.STOPPED && stopped == fal se && seeking == false ) { songFinished(); stopped = true; } else if ( stopped == true && player.getStatus() == BasicPlayer.PLAYING ) { stopped = false; } } /** * Stops the Song. * * @throws BasicPlayerException */ public void stop() throws BasicPlayerException { if ( player != null && player.getStatus() != BasicPlayer.STOPPED ) { player.stop(); } } }