Created simple prototype music chooser (playlist manager).
git-svn-id: https://samskivert.googlecode.com/svn/trunk@143 6335cc39-0255-0410-8fd6-9bcaacd3b74c
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mdb
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//
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// $Id: Chooser.java,v 1.1 2001/06/05 16:42:38 mdb Exp $
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package robodj.chooser;
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import java.awt.Dimension;
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import java.awt.Toolkit;
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import java.io.IOException;
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import java.sql.SQLException;
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import java.util.Properties;
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import com.samskivert.util.PropertiesUtil;
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import robodj.Log;
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import robodj.repository.Repository;
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import robodj.util.ServerControl;
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/**
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* The chooser is the GUI-based application for browsing the music
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* collection and managing the playlist.
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*/
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public class Chooser
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{
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public static Properties config;
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public static Repository repository;
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public static ServerControl scontrol;
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public static void main (String[] args)
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{
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// set up our configuration by hand for now
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config = new Properties();
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config.setProperty("repository.db.driver", "org.gjt.mm.mysql.Driver");
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config.setProperty("repository.db.username", "www");
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config.setProperty("repository.db.password", "Il0ve2PL@Y");
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config.setProperty("repository.db.url",
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"jdbc:mysql://depravity:3306/robodj");
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config.setProperty("repository.basedir", "/export/robodj/repository");
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// create an interface to the database repository
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try {
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Properties dbprops =
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PropertiesUtil.getSubProperties(config, "repository.db");
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repository = new Repository(dbprops);
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} catch (SQLException sqe) {
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Log.warning("Unable to establish communication with music " +
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"database: " + sqe);
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System.exit(-1);
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}
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try {
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// establish a connection with the music server
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scontrol = new ServerControl("depravity", 2500);
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} catch (IOException ioe) {
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Log.warning("Unable to establish communication with music " +
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"server: " + ioe);
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System.exit(-1);
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}
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// create our primary user interface frame, center the frame in
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// the screen and show it
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ChooserFrame frame = new ChooserFrame();
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Toolkit tk = frame.getToolkit();
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Dimension ss = tk.getScreenSize();
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int width = 550, height = 500;
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frame.setBounds((ss.width-width)/2, (ss.height-height)/2,
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width, height);
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frame.setVisible(true);
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}
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}
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//
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// $Id: ChooserFrame.java,v 1.1 2001/06/05 16:42:38 mdb Exp $
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package robodj.chooser;
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import java.awt.*;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import javax.swing.*;
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import com.samskivert.swing.*;
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public class ChooserFrame
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extends JFrame
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implements ActionListener
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{
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public ChooserFrame ()
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{
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super("RoboDJ Chooser");
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// we create a top-level panel to manage everything
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JPanel top = new JPanel();
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GroupLayout gl = new VGroupLayout(GroupLayout.STRETCH);
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gl.setOffAxisPolicy(GroupLayout.STRETCH);
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top.setLayout(gl);
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// give ourselves a wee bit of a border
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top.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
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// the top of the UI is the playlist manager section
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JTabbedPane tpane = new JTabbedPane();
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Component elist = new EntryList();
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tpane.addTab("Browse", null, elist, "Browse music database.");
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tpane.setSelectedIndex(0);
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top.add(tpane);
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// the bottom is the control bar
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GroupLayout bgl = new HGroupLayout(GroupLayout.NONE);
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bgl.setJustification(GroupLayout.RIGHT);
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JPanel cbar = new JPanel(bgl);
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// add some fake control buttons for now
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cbar.add(createControlButton("Play", "play"));
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cbar.add(createControlButton("Pause", "pause"));
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cbar.add(createControlButton("Stop", "stop"));
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cbar.add(createControlButton("Skip", "skip"));
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cbar.add(createControlButton("Clear", "clear"));
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cbar.add(createControlButton("Exit", "exit"));
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// stick it into the frame
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top.add(cbar, GroupLayout.FIXED);
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// now add our top-level panel (we'd not use this if we could set
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// a border on the content pane returned by the frame... alas)
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getContentPane().add(top, BorderLayout.CENTER);
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}
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protected JButton createControlButton (String label, String action)
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{
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JButton cbut = new JButton(label);
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cbut.setActionCommand(action);
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cbut.addActionListener(this);
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return cbut;
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}
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public void actionPerformed (ActionEvent e)
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{
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String cmd = e.getActionCommand();
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if (cmd.equals("exit")) {
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System.exit(0);
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} else if (cmd.equals("pause")) {
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Chooser.scontrol.pause();
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} else if (cmd.equals("play")) {
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Chooser.scontrol.play();
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} else if (cmd.equals("clear")) {
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Chooser.scontrol.clear();
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} else if (cmd.equals("stop")) {
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Chooser.scontrol.stop();
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} else if (cmd.equals("skip")) {
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Chooser.scontrol.skip();
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} else {
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System.out.println("Unknown action event: " + cmd);
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}
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}
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protected Component makeTextPanel (String text)
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{
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JPanel panel = new JPanel(false);
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JLabel filler = new JLabel(text);
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filler.setHorizontalAlignment(JLabel.CENTER);
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panel.setLayout(new GridLayout(1, 1));
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panel.add(filler);
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return panel;
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}
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}
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@@ -0,0 +1,233 @@
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//
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// $Id: EntryList.java,v 1.1 2001/06/05 16:42:38 mdb Exp $
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package robodj.chooser;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.sql.SQLException;
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import java.util.*;
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import javax.swing.*;
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import com.samskivert.swing.*;
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import com.samskivert.swing.util.*;
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import robodj.Log;
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import robodj.repository.*;
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public class EntryList
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extends JPanel
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implements TaskObserver, ActionListener
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{
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public EntryList ()
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{
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GroupLayout gl = new VGroupLayout(GroupLayout.STRETCH);
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gl.setOffAxisPolicy(GroupLayout.STRETCH);
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setLayout(gl);
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// create the pane that will hold the buttons
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gl = new VGroupLayout(GroupLayout.NONE);
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gl.setOffAxisPolicy(GroupLayout.EQUALIZE);
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_bpanel = new JPanel(gl);
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// give ourselves a wee bit of a border
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_bpanel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
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// put it into a scrolling pane
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JScrollPane bscroll = new JScrollPane(_bpanel);
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add(bscroll);
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// add our navigation button
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_upbut = new JButton("Up");
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_upbut.setActionCommand("up");
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_upbut.addActionListener(this);
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add(_upbut, GroupLayout.FIXED);
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// start up the task that reads the CD info from the database
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TaskMaster.invokeMethodTask("readEntries", this, this);
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}
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public void taskCompleted (String name, Object result)
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{
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if (name.equals("readEntries")) {
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// the result should be an array of entry objects with which
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// we can populate our button list
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_entries = (Entry[])result;
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populateEntries(_entries);
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} else if (name.equals("readAndPlay")) {
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for (int i = 0; i < _entry.songs.length; i++) {
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Chooser.scontrol.append(_entry.songs[i].location);
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}
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} else if (name.equals("readSongs")) {
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populateSong(_entry);
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}
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}
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public void taskFailed (String name, Throwable exception)
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{
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String msg;
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if (Exception.class.equals(exception.getClass())) {
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msg = exception.getMessage();
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} else {
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msg = exception.toString();
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}
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JOptionPane.showMessageDialog(this, msg, "Error",
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JOptionPane.ERROR_MESSAGE);
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Log.logStackTrace(exception);
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}
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/**
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* Reads the entries from the database.
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*/
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public Entry[] readEntries ()
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throws SQLException
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{
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return Chooser.repository.getEntries("");
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}
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/**
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* Reads the entries from the database.
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*/
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public void readSongs ()
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throws SQLException
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{
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Chooser.repository.populateSongs(_entry);
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}
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/**
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* Reads the entries from the database and plays them all.
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*/
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public void readAndPlay ()
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throws SQLException
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{
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Chooser.repository.populateSongs(_entry);
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}
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/**
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* Creates the proper buttons, etc. for each entry.
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*/
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protected void populateEntries (Entry[] entries)
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{
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// disable the up button because we're at the top level
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_upbut.setEnabled(false);
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// clear out any existing children
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_bpanel.removeAll();
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// sort our entries
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Comparator ecomp = new Comparator() {
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public int compare (Object o1, Object o2) {
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Entry e1 = (Entry)o1, e2 = (Entry)o2;
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int rv = e1.artist.compareTo(e2.artist);
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return rv == 0 ? e1.title.compareTo(e2.title) : rv;
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}
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public boolean equals (Object o1) {
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return o1.equals(this);
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}
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};
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Arrays.sort(entries, ecomp);
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// and add buttons for every entry
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String artist = null;
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for (int i = 0; i < entries.length; i++) {
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if (!entries[i].artist.equals(artist)) {
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artist = entries[i].artist;
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JLabel label = new JLabel(entries[i].artist);
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_bpanel.add(label);
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}
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// create a browse and a play button
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JPanel hpanel = new JPanel();
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GroupLayout gl = new HGroupLayout(GroupLayout.NONE);
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gl.setOffAxisPolicy(GroupLayout.STRETCH);
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gl.setJustification(GroupLayout.LEFT);
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hpanel.setLayout(gl);
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JButton button;
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button = new JButton("Play");
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button.setActionCommand("playall");
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button.addActionListener(this);
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button.putClientProperty("entry", entries[i]);
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hpanel.add(button);
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button = new JButton(entries[i].title);
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button.setActionCommand("browse");
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button.addActionListener(this);
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button.putClientProperty("entry", entries[i]);
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hpanel.add(button);
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_bpanel.add(hpanel);
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}
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}
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protected void populateSong (Entry entry)
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{
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// enable the up button because we're looking at a song
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_upbut.setEnabled(true);
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// clear out any existing children
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_bpanel.removeAll();
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// add a label for the title
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JLabel label = new JLabel(entry.title);
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_bpanel.add(label);
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// sort the songs by position
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Comparator scomp = new Comparator() {
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public int compare (Object o1, Object o2) {
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Song s1 = (Song)o1, s2 = (Song)o2;
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return s1.position - s2.position;
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}
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public boolean equals (Object o1) {
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return o1.equals(this);
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}
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};
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Arrays.sort(entry.songs, scomp);
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// and add buttons for every song
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for (int i = 0; i < entry.songs.length; i++) {
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JButton button = new JButton(entry.songs[i].title);
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button.setActionCommand("play");
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button.addActionListener(this);
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button.putClientProperty("song", entry.songs[i]);
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_bpanel.add(button);
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}
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}
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public void actionPerformed (ActionEvent e)
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{
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String cmd = e.getActionCommand();
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if (cmd.equals("browse")) {
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JButton src = (JButton)e.getSource();
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_entry = (Entry)src.getClientProperty("entry");
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// start up the task that reads this CDs songs from the database
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TaskMaster.invokeMethodTask("readSongs", this, this);
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} else if (cmd.equals("playall")) {
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JButton src = (JButton)e.getSource();
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_entry = (Entry)src.getClientProperty("entry");
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// start up the task that reads this CDs songs from the database
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TaskMaster.invokeMethodTask("readAndPlay", this, this);
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} else if (cmd.equals("play")) {
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JButton src = (JButton)e.getSource();
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Song song = (Song)src.getClientProperty("song");
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Chooser.scontrol.append(song.location);
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} else if (cmd.equals("up")) {
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populateEntries(_entries);
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} else {
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System.out.println("Unknown action event: " + cmd);
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}
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}
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protected JPanel _bpanel;
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protected JButton _upbut;
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protected Entry[] _entries;
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protected Entry _entry;
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}
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