C:/Projekte/I2BPro/src/i2bpro/layer/Dialogs/PlayListAuswahlDlg.java

package i2bpro.layer.Dialogs;

import i2bpro.Exceptions.ErrorMsg;
import i2bpro.Exceptions.PlayListException;
import i2bpro.layer.InfoMsg;
import i2bpro.layer.Layer;
import i2bpro.playlist.PlayList;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JPanel;
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 PlayListAuswahlDlg extends JDialog implements ActionListener
{
    //  Das Attribut instance stellt die einzigste Instanz der Klasse
    //  PlayListAuswahlDlg des Audioplayers dar.
    private static PlayListAuswahlDlg instance = new PlayListAuswahlDlg();
    
    // Enthält die Pfadangabe der anzulegenden Wiedergabeliste
    private String filename;



    private PlayListAuswahlDlg()
    {
        setLayout(new GridLayout(2,1));
        JPanel labels = new JPanel();
        labels.setLayout(new FlowLayout(FlowLayout.CENTER, 3, 3));
        labels.add(new JLabel("Bitte wählen Sie die Art der Wiedergabeliste aus."));
        JPanel buttons = new JPanel();
        buttons.setLayout(new FlowLayout(FlowLayout.CENTER, 3, 3));
        JButton btn = new JButton("M3U (Einfach)");
        btn.addActionListener(this);
        buttons.add(btn);
        btn = new JButton("M3U (Erweitert)");
        btn.addActionListener(this);
        buttons.add(btn);
        btn = new JButton("CUE");
        btn.addActionListener(this);
        buttons.add(btn);
        add(labels);
        add(buttons);
    }



    public static PlayListAuswahlDlg getInstance() { return instance; }



    public void run(String filename)
    {
        this.filename = filename;
        pack();
        Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
        int y = (int)((dim.getHeight()/2)-(getHeight()/2));
        int x = (int)((dim.getWidth()/2)-(getWidth()/2));
        setLocation(x, y);
        setVisible(true);
    }



    public void actionPerformed(ActionEvent e) 
    {
        String cmd = e.getActionCommand();
        int type = 0;
        if (cmd.equals("M3U (Einfach)"))
        {
            filename = filename + ".m3u";
            type = 1;
        } else if (cmd.equals("M3U (Erweitert)"))
        {
            filename = filename + ".m3u";
            type = 2;
        } else if (cmd.equals("CUE"))
        {
            InfoMsg.show(5);
        }
        if (type > 0)
        {
            setVisible(false);
            FileWriter f = null;
            try {
                f = new FileWriter(filename);
                //  Für den Fall einer erweiterten M3U-Wiedergabeliste
                //  wird die entsprechend erste Zeile angelegt.
                if (type == 2) f.write("#EXTM3U");
                f.close();
                PlayList.getInstance().setPlayList(filename);
                Layer.getInstance().PlayListChange();
            }
            catch (PlayListException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (FileNotFoundException ex) { ErrorMsg.show(ex.getMessage()); }
            catch (CannotReadException 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 (IOException ex) { ErrorMsg.show(ex.getMessage()); }
        }
    }
}