GUI.java

import java.awt.EventQueue;

import javax.swing.JFrame;
import com.jgoodies.forms.layout.FormLayout;
import com.jgoodies.forms.layout.ColumnSpec;
import com.jgoodies.forms.layout.RowSpec;
import com.jgoodies.forms.factories.FormFactory;

import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.DefaultListModel;
import javax.swing.ImageIcon;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.SwingConstants;
import java.awt.Toolkit;
import java.awt.Color;
import java.awt.SystemColor;
import java.awt.Font;
import java.io.File;
import java.io.FileFilter;

import javax.swing.event.ListSelectionListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.UIManager;

/**
 * The GUI class for the audio recorder/player.
 */
public class GUI extends JFrame {

	/**
	 * Main frame.
	 */
	private JFrame frmAudio;

	/**
	 * Path to external resources, e.g. images.
	 */
	private static String resourcePath = "src/resources/";

	/**
	 * List model and list for the recordings.
	 */
	public DefaultListModel LM = new DefaultListModel();
	JList list = new JList(LM);
	JScrollPane scrollpane = new JScrollPane(list);

	/**
	 * Only allow .ogg and .mp3.
	 */
	FileFilter ff = new FileFilter() {
		@Override
		public boolean accept(File pathname) {
			// TODO Auto-generated method stub
			String name = pathname.getName().toLowerCase();
			return name.endsWith(".ogg") || name.endsWith(".mp3");

		}
	};

	/**
	 * The recorder.
	 */
	private Recorder audio;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {

		EventQueue.invokeLater(new Runnable() {

			public void run() {
				try {
					GUI window = new GUI();
					window.SetInitialFileList();
					window.frmAudio.setVisible(true);

				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Initialize the application.
	 */
	public GUI() {
		initialize();
		audio = new Recorder(this);
	}

	/**
	 * Initialize the contents of the frame.
	 */
	private void SetInitialFileList() {
		File[] my_records;
		my_records = new File(Recorder.recordingsPath).listFiles(ff);

		for (File c : my_records) {
			LM.addElement(c);
		}

	}

	/**
	 * Sets up GUI.
	 */
	private void initialize() {
		frmAudio = new JFrame();
		frmAudio.setAlwaysOnTop(true);
		frmAudio.getContentPane().setFont(new Font("Dialog", Font.PLAIN, 12));
		frmAudio.getContentPane().setForeground(SystemColor.controlHighlight);
		frmAudio.getContentPane().setBackground(Color.WHITE);
		frmAudio.setTitle("Audio recorder");
		frmAudio.setIconImage(Toolkit.getDefaultToolkit().getImage(resourcePath + "MicrophoneHot.png"));
		frmAudio.setBounds(100, 100, 722, 456);
		frmAudio.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frmAudio.getContentPane()
				.setLayout(
						new FormLayout(new ColumnSpec[] { FormFactory.RELATED_GAP_COLSPEC, FormFactory.DEFAULT_COLSPEC,
								FormFactory.RELATED_GAP_COLSPEC, FormFactory.DEFAULT_COLSPEC, FormFactory.RELATED_GAP_COLSPEC,
								FormFactory.DEFAULT_COLSPEC, FormFactory.RELATED_GAP_COLSPEC, FormFactory.DEFAULT_COLSPEC,
								FormFactory.RELATED_GAP_COLSPEC, FormFactory.DEFAULT_COLSPEC, FormFactory.RELATED_GAP_COLSPEC,
								FormFactory.DEFAULT_COLSPEC, FormFactory.RELATED_GAP_COLSPEC, FormFactory.DEFAULT_COLSPEC,
								FormFactory.RELATED_GAP_COLSPEC, ColumnSpec.decode("default:grow"), FormFactory.RELATED_GAP_COLSPEC,
								FormFactory.DEFAULT_COLSPEC, FormFactory.RELATED_GAP_COLSPEC, FormFactory.DEFAULT_COLSPEC,
								FormFactory.RELATED_GAP_COLSPEC, FormFactory.DEFAULT_COLSPEC, FormFactory.RELATED_GAP_COLSPEC,
								FormFactory.DEFAULT_COLSPEC, }, new RowSpec[] { FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC,
								FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC, FormFactory.RELATED_GAP_ROWSPEC,
								FormFactory.DEFAULT_ROWSPEC, FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC,
								FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC, FormFactory.RELATED_GAP_ROWSPEC,
								FormFactory.DEFAULT_ROWSPEC, FormFactory.RELATED_GAP_ROWSPEC, RowSpec.decode("default:grow"),
								FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC, FormFactory.RELATED_GAP_ROWSPEC,
								RowSpec.decode("default:grow"), FormFactory.RELATED_GAP_ROWSPEC, RowSpec.decode("default:grow"),
								FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC, FormFactory.RELATED_GAP_ROWSPEC,
								FormFactory.DEFAULT_ROWSPEC, FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC,
								FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC, FormFactory.RELATED_GAP_ROWSPEC,
								FormFactory.DEFAULT_ROWSPEC, FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC,
								FormFactory.RELATED_GAP_ROWSPEC, FormFactory.DEFAULT_ROWSPEC, }));

		JButton record_btn = new JButton("");
		record_btn.setHorizontalAlignment(SwingConstants.LEFT);
		record_btn.setIcon(new ImageIcon(resourcePath + "RecordPressed (1).png"));

		record_btn.addActionListener(new ActionListener() {

			public void actionPerformed(ActionEvent arg0) {

				audio.record();

			}
		});
		frmAudio.getContentPane().add(record_btn, "4, 4");

		JButton volume_up_btn = new JButton("");
		volume_up_btn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {

				audio.volumeUp();
			}
		});

		JButton stop_btn = new JButton("");
		stop_btn.setIcon(new ImageIcon(resourcePath + "Stop1Normal (1).png"));
		stop_btn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {

				audio.stop();
			}
		});
		frmAudio.getContentPane().add(stop_btn, "6, 4");

		JButton play_btn = new JButton("");
		play_btn.setIcon(new ImageIcon(resourcePath + "Play1Pressed (1).png"));

		play_btn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {

				audio.play();
			}
		});
		frmAudio.getContentPane().add(play_btn, "8, 4, left, default");
		volume_up_btn.setIcon(new ImageIcon(resourcePath + "VolumeNormalRed.png"));
		frmAudio.getContentPane().add(volume_up_btn, "4, 10");

		JButton volume_down_btn = new JButton("");
		volume_down_btn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {

				audio.volumeDown();
			}

		});
		volume_down_btn.setIcon(new ImageIcon(resourcePath + "VolumeDisabled.png"));
		frmAudio.getContentPane().add(volume_down_btn, "6, 10");

		JButton mute_btn = new JButton("");

		mute_btn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {

				audio.mute();
			}
		});

		mute_btn.setIcon(new ImageIcon(resourcePath + "mute-2.png"));
		frmAudio.getContentPane().add(mute_btn, "8, 10");

		list.addListSelectionListener(new ListSelectionListener() {
			public void valueChanged(ListSelectionEvent arg0) {
				if (arg0.getValueIsAdjusting() == false) {

					System.out.println(list.getSelectedValue());
				}
			}
		});
		list.setBorder(UIManager.getBorder("List.focusCellHighlightBorder"));
		list.setBackground(Color.WHITE);
		frmAudio.getContentPane().add(scrollpane, "4, 16, 12, 8, default, fill");
		list.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
		list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
		list.setAutoscrolls(true);
		// list.setBounds(MAXIMIZED_HORIZ, MAXIMIZED_VERT, MAXIMIZED_BOTH,
		// MAXIMIZED_BOTH);
		list.setVisibleRowCount(-1);

	}
	
	/**
	 * Adds a new file to the list.
	 * @param nameandpath
	 */
	public void addNewFiletoList(String nameandpath) {
		LM.addElement(nameandpath);
	}

	/**
	 * Gets a selected file from the list.
	 * @return path to the file.
	 */
	public String getSelectedPlayItem() {
		return list.getSelectedValue().toString();
	}

}