C:/Projekte/I2BPro/src/i2bpro/layer/Menus/MainMenu.java

package i2bpro.layer.Menus;

import i2bpro.Exceptions.ErrorMsg;
import i2bpro.Exceptions.LayerException;
import i2bpro.Exceptions.PlayListException;
import i2bpro.layer.Dialogs.InsertMediaDlg;
import i2bpro.layer.Dialogs.PlayListNewDlg;
import i2bpro.layer.Dialogs.PlayListOpenDlg;
import i2bpro.layer.InfoMsg;
import i2bpro.layer.Layer;
import i2bpro.layer.Panels.ButtonPanel;
import i2bpro.player.Player;
import i2bpro.playlist.PlayList;
import java.awt.Cursor;
import java.awt.Event;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.io.IOException;
import java.net.MalformedURLException;
import javax.media.NoPlayerException;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.KeyStroke;
import org.jaudiotagger.audio.exceptions.CannotReadException;
import org.jaudiotagger.audio.exceptions.InvalidAudioFrameException;
import org.jaudiotagger.audio.exceptions.ReadOnlyFileException;
import org.jaudiotagger.tag.TagException;




public final class MainMenu extends JMenuBar implements ActionListener
{
    //  DEklaration der Attribute
    final Icon speaker_on = new ImageIcon(ButtonPanel.class.getResource(
            "/pics/speaker_on.png"));
    final Icon speaker_off = new ImageIcon(ButtonPanel.class.getResource(
            "/pics/speaker_off.png"));
    private JMenuItem muteMenuItem = new JMenuItem("Mute", speaker_on);



    public MainMenu()
    {
        // PlayList-Menu deklarieren
        add(createPlayListMenu());
        add(createPlayMenu());
    }



    private JMenu createPlayListMenu()
    {
        JMenu m;
        JMenuItem mi;

        m = new JMenu("Wiedergabeliste");
        m.setMnemonic('l');

        //  Menüpunkt Neue Wiedergabeliste erstellen
        mi = new JMenuItem("Neu", 'N');
        mi.setAccelerator(KeyStroke.getKeyStroke('N', KeyEvent.CTRL_MASK));
        mi.setToolTipText("Neue Playlist anlegen");
        mi.addActionListener(this);
        m.add(mi);

        //  Menüpunkt Wiedergabeliste laden
        mi = new JMenuItem("Öffnen", 'f');
        mi.setAccelerator(KeyStroke.getKeyStroke('F', KeyEvent.CTRL_MASK));
        mi.setToolTipText("Playlist öffnen");
        mi.addActionListener(this);
        m.add(mi);

        //  Menüpunkt Wiedergabeliste speichern
        mi = new JMenuItem("Speichern", 'S');
        mi.setAccelerator(KeyStroke.getKeyStroke('S', KeyEvent.CTRL_MASK));
        mi.setToolTipText("aktuelle Playlist speichern");
        mi.setEnabled(false);
        mi.addActionListener(this);
        m.add(mi);

        m.addSeparator();

        //  Menüpunkt Audiodateien hinzufügen
        mi = new JMenuItem("Audiotitel hinzufügen", 'h');
        mi.setToolTipText("Fügt der Wiedergabeliste eine Audiodatei hinzu.");
        mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_INSERT, KeyEvent.CTRL_MASK));
        mi.addActionListener(this);
        m.add(mi);

        //  Menüpunkt Audiotitel löschen
        mi = new JMenuItem("Audiotitel löschen", 'l');
        mi.setToolTipText("Entfernt einen Audiotrack aus der Playlist");
        mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, Event.CTRL_MASK));
        mi.addActionListener(this);
        m.add(mi);

        m.addSeparator();

        //  Menüpunkt Albuminformationen laden
        mi = new JMenuItem("Albuminformationen laden", 'i');
        mi.setToolTipText("Albuminformationen von freedb.org laden");
        mi.setAccelerator(KeyStroke.getKeyStroke('I', Event.CTRL_MASK));
        mi.addActionListener(this);
        m.add(mi);

        m.addSeparator();

        // Menüpunkt Audioplayer beenden
        mi = new JMenuItem("Beenden", 'B');
        mi.setToolTipText("Player beenden");
        mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F4, KeyEvent.ALT_MASK));
        mi.addActionListener(this);
        m.add(mi);

        return m;
    }



    public JMenu createPlayMenu()
    {
        JMenu m;
        JMenuItem mi;

        m = new JMenu("Wiedergabe");
        m.setMnemonic('W');

        //  Menüpunkt Wiedergabe
        mi = new JMenuItem("Play", 'P');
        mi.setToolTipText("Abspielen des Audiotracks starten");
        mi.setIcon(new ImageIcon(ButtonPanel.class.getResource("/pics/play.png")));
        mi.setAccelerator(KeyStroke.getKeyStroke('P', KeyEvent.CTRL_MASK));
        mi.setEnabled(true);
        mi.addActionListener(this);
        m.add(mi);

        //  Menüpnkt Pause
        mi = new JMenuItem("Pause", 'a');
        mi.setToolTipText("Audiotrack pausieren lassen");
        mi.setAccelerator(KeyStroke.getKeyStroke('A', KeyEvent.CTRL_MASK));
        mi.setIcon(new ImageIcon(ButtonPanel.class.getResource("/pics/pause.png")));
        mi.setEnabled(false);
        mi.addActionListener(this);
        m.add(mi);

        //  Menüpunkt Stop
        mi = new JMenuItem("Stop", 'S');
        mi.setAccelerator(KeyStroke.getKeyStroke('T', KeyEvent.CTRL_MASK));
        mi.setIcon(new ImageIcon(ButtonPanel.class.getResource("/pics/stop.png")));
        mi.setToolTipText("Abspielen des Audiotracks stoppen");
        mi.setEnabled(false);
        mi.addActionListener(this);
        m.add(mi);

        //  Menüpunkt vorherigen Audiotitel abspielen
        mi = new JMenuItem("Vorheriger Titel", 'V');
        mi.setToolTipText("zum vorherigen Titel springen");
        mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_UP, KeyEvent.CTRL_MASK));
        mi.setIcon(new ImageIcon(ButtonPanel.class.getResource("/pics/prior.png")));
        mi.setEnabled(false);
        mi.addActionListener(this);
        m.add(mi);

        //  Menüpunkt nächsten Audiotitel abspielen
        mi = new JMenuItem("Nächster Titel", 'N');
        mi.setToolTipText("zum nächsten Titel springen");
        mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, KeyEvent.CTRL_MASK));
        mi.setIcon(new ImageIcon(ButtonPanel.class.getResource("/pics/next.png")));
        mi.setEnabled(false);
        mi.addActionListener(this);
        m.add(mi);

        m.addSeparator();

        //  Menüpunkt Lautstärke erhöhen
        mi = new JMenuItem("Lautstärke erhöhen", 'e');
        mi.setToolTipText("Lautstärke um 5 Punkte erhöhen");
        mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_PLUS, KeyEvent.CTRL_MASK));
        mi.setIcon(new ImageIcon(ButtonPanel.class.getResource("/pics/speaker_plus.png")));
        mi.addActionListener(this);
        m.add(mi);

        //  Menüpunkt Lautstärke verringern
        mi = new JMenuItem("Lautstärke verringern", 'r');
        mi.setToolTipText("Lautstärke um 5 Punkte verringern");
        mi.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_MINUS, KeyEvent.CTRL_MASK));
        mi.setIcon(new ImageIcon(ButtonPanel.class.getResource("/pics/speaker_minus.png")));
        mi.addActionListener(this);
        m.add(mi);

        // Menüpunkt Mute Mode wechseln
        muteMenuItem.setToolTipText("Mute einschalten");
        muteMenuItem.setAccelerator(KeyStroke.getKeyStroke('M', KeyEvent.CTRL_MASK));
        muteMenuItem.setSelected(false);
        muteMenuItem.addActionListener(this);
        m.add(muteMenuItem);

        return m;
    }



    public void actionPerformed(ActionEvent e) 
    {
        String event = e.getActionCommand();
        if (event.equals("Neu"))
        {
            PlayListNewDlg.getInstance().run();
        }
        else if(event.equals("Öffnen"))
        {
            PlayListOpenDlg.getInstance().run();
        }
        else if (event.equals("Speichern"))
        {
            try
            {
                Cursor old_cursor = getCursor();
                setCursor(new Cursor(Cursor.WAIT_CURSOR));
                PlayList.getInstance().PlayListSave(
                        PlayList.getInstance().getFileName());
                setCursor(old_cursor);
            }
            catch (PlayListException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (IOException ex) { ErrorMsg.show(ex.getMessage()); }
        }
        else if (event.equals("Audiotitel hinzufügen"))
        {
            if (PlayList.getInstance().getFileName() == null)
            {
                try
                {
                    throw new LayerException(104);
                } 
                catch (LayerException ex) 
                {
                    ErrorMsg.show(ex.getMessage());
                }
            } else {
                InsertMediaDlg.getInstance().run();
            }
        }
        else if (event.equals("Audiotitel löschen"))
        {
            try { Layer.getInstance().DeleteMedia(); }
            catch (LayerException ex) { ErrorMsg.show(ex.getMessage()); }
        }
        else if (event.equals("Albuminformationen laden"))
        {
            try { PlayList.getInstance().getAlbumInfo(); }
            catch (CannotReadException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (IOException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (TagException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (ReadOnlyFileException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (InvalidAudioFrameException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (PlayListException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (NoPlayerException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (InterruptedException ex) { ErrorMsg.show(ex.getMessage()); }
        }
        else if (event.equals("Beenden"))
        {
            if (Layer.getInstance().isSave())
            {
                JOptionPane pane = new JOptionPane();
                if (pane.showConfirmDialog(null,
                        "Möchten Sie die an der Playlist vorgenommenen "
                        + "Änderungen speichern?", null,
                        JOptionPane.YES_NO_OPTION,
                        JOptionPane.QUESTION_MESSAGE) == JOptionPane.YES_OPTION)
                {
                    try
                    {
                        PlayList.getInstance().PlayListSave(
                                PlayList.getInstance().getFileName());
                    }
                    catch (PlayListException ex){ErrorMsg.show(ex.getMessage());}
                    catch (IOException ex) { ErrorMsg.show(ex.getMessage()); }
                }
            }
            Layer.getInstance().setVisible(false);
            Layer.getInstance().dispose();
            System.exit(0);
        }
        else if (event.equals("Play"))
        {
            try { Layer.getInstance().play(); }
            catch (LayerException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (MalformedURLException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (IOException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (NoPlayerException ex) { ErrorMsg.show(ex.getMessage()); }
        }
        else if (event.equals("Pause"))
        {
            Layer.getInstance().pause();
        }
        else if (event.equals("Stop"))
        {
            Layer.getInstance().stop();
        }
        else if (event.equals("Vorheriger Titel"))
        {
            try
            {
                Layer.getInstance().Prior();
            }
            catch (LayerException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (MalformedURLException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (IOException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (NoPlayerException ex) { ErrorMsg.show(ex.getMessage()); }
        }
        else if (event.equals("Nächster Titel"))
        {
            try
            {
                Layer.getInstance().Next();
            }
            catch (LayerException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (MalformedURLException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (IOException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (NoPlayerException ex) { ErrorMsg.show(ex.getMessage()); }
        }
        else if (event.equals("Lautstärke erhöhen"))
        {
            int vol = Player.getInstance().getVolume() + 5;
            Layer.getInstance().setVolume( vol > 100 ? 100 : vol);
        }
        else if (event.equals("Lautstärke verringern"))
        {
            int vol = Player.getInstance().getVolume() - 5;
            Layer.getInstance().setVolume( vol < 0 ? 0 : vol );
        }
        else if (event.equals("Mute"))
        {
            Layer.getInstance().toggleMute();
        } else {
            InfoMsg.show(2);
        }
    }



    public void PlayerStarted()
    {
        this.getMenu(1).getMenuComponent(0).setEnabled(false);
        this.getMenu(1).getMenuComponent(1).setEnabled(true);
        this.getMenu(1).getMenuComponent(2).setEnabled(true);
        this.getMenu(1).getMenuComponent(3).setEnabled(true);
        this.getMenu(1).getMenuComponent(4).setEnabled(true);
    }



    public void PlayerPause()
    {
        this.getMenu(1).getMenuComponent(0).setEnabled(true);
        this.getMenu(1).getMenuComponent(1).setEnabled(false);
        this.getMenu(1).getMenuComponent(2).setEnabled(true);
        this.getMenu(1).getMenuComponent(3).setEnabled(true);
        this.getMenu(1).getMenuComponent(4).setEnabled(true);
    }



    public void PlayerStopped()
    {
        this.getMenu(1).getMenuComponent(0).setEnabled(true);
        this.getMenu(1).getMenuComponent(1).setEnabled(false);
        this.getMenu(1).getMenuComponent(2).setEnabled(false);
        this.getMenu(1).getMenuComponent(3).setEnabled(false);
        this.getMenu(1).getMenuComponent(4).setEnabled(false);
    }



    public void toggledMute()
    {
        if (Player.getInstance().isMute())
        {
            muteMenuItem.setIcon(speaker_off);
            muteMenuItem.setToolTipText("Mute ausschalten");
        } else {
            muteMenuItem.setIcon(speaker_on);
            muteMenuItem.setToolTipText("Mute einchalten");
        }
    }
}