PenServerTrayApp.java

package edu.stanford.hci.r3.pen.streaming;

import java.awt.AWTException;
import java.awt.Image;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.TrayIcon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.InetAddress;
import java.net.UnknownHostException;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JTextField;
import javax.swing.WindowConstants;

import com.jgoodies.forms.builder.PanelBuilder;
import com.jgoodies.forms.layout.CellConstraints;
import com.jgoodies.forms.layout.FormLayout;

import edu.stanford.hci.r3.PaperToolkit;
import edu.stanford.hci.r3.config.Constants;
import edu.stanford.hci.r3.util.DebugUtils;
import edu.stanford.hci.r3.util.WindowUtils;
import edu.stanford.hci.r3.util.communications.COMPort;
import edu.stanford.hci.r3.util.graphics.ImageCache;

public class PenServerTrayApp {

        private static final String START_PEN_SERVER_MSG = "Start the Pen Server";

        private static final String STOP_PEN_SERVER_MSG = "Stop the Pen Server";

        public static void main(String[] args) {
                PaperToolkit.initializeLookAndFeel();

                // pop up a dialog box asking which serial port and which TCP/IP port to use...
                final JDialog dialog = new JDialog();

                FormLayout layout = new FormLayout( //
                                "right:pref, 3dlu, pref", // columns
                                "p, 3dlu, p, 9dlu, p" // rows
                );
                PanelBuilder builder = new PanelBuilder(layout);
                builder.setDefaultDialogBorder();

                CellConstraints cc = new CellConstraints();

                final JComboBox comPortComboBox = new JComboBox(COMPort.PORTS);
                comPortComboBox.setSelectedItem(COMPort.COM5);
                final JTextField serialPortTextField = new JTextField(15);
                serialPortTextField.setText(Constants.Ports.PEN_SERVER_JAVA + "");
                JButton button = new JButton("OK");
                button.addActionListener(new ActionListener() {
                        @Override
                        public void actionPerformed(ActionEvent arg0) {
                                COMPort selectedCOMPort = (COMPort) comPortComboBox.getSelectedItem();
                                int selectedTCPIPPort = Integer.parseInt(serialPortTextField.getText());
                                DebugUtils.println(selectedCOMPort + " " + selectedTCPIPPort);
                                new PenServerTrayApp(selectedCOMPort, selectedTCPIPPort);
                                dialog.dispose();
                        }
                });

                builder.addLabel("Bluetooth COM Port (e.g., COM5)", cc.xy(1, 1));
                builder.add(comPortComboBox, cc.xyw(3, 1, 1));

                builder.addLabel("Pen Server Serial Port (e.g., 11025)", cc.xy(1, 3));
                builder.add(serialPortTextField, cc.xyw(3, 3, 1));

                builder.add(button, cc.xyw(1, 5, 3));

                dialog.getContentPane().add(builder.getPanel());
                dialog.setTitle("Pen Server Options");
                dialog.pack();
                dialog.setLocation(WindowUtils.getWindowOrigin(dialog.getWidth(), dialog.getHeight(),
                                WindowUtils.DESKTOP_CENTER));
                dialog.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
                dialog.setVisible(true);
        }

        private COMPort comPort;

        private ActionListener iconListener;

        private Image imageOFF;

        private Image imageON;

        private MenuItem onOffItem;

        private boolean serverRunning;

        private int tcpipPort;

        private TrayIcon trayIcon;

        public PenServerTrayApp(COMPort btDongleComPortT, int penServerTcpIpPorT) {
                if (!SystemTray.isSupported()) {
                        System.err.println("The System Tray is not supported. " + "Exiting the Pen Server Tray App.");
                        return;
                }
                final SystemTray systemTray = SystemTray.getSystemTray();

                comPort = btDongleComPortT;
                tcpipPort = penServerTcpIpPorT;

                // the on/off icons
                imageON = ImageCache.loadBufferedImage(PenServerTrayApp.class.getResource("/icons/sun.png"));
                imageOFF = ImageCache.loadBufferedImage(PenServerTrayApp.class.getResource("/icons/sunOff.png"));

                final PopupMenu popup = new PopupMenu();
                final MenuItem exitItem = new MenuItem("Exit");
                exitItem.addActionListener(getExitListener());
                onOffItem = new MenuItem(STOP_PEN_SERVER_MSG);
                onOffItem.addActionListener(getOnOffListener());
                popup.add(onOffItem);
                popup.add(exitItem);

                InetAddress localHost = null;
                try {
                        localHost = InetAddress.getLocalHost();
                } catch (UnknownHostException e1) {
                        e1.printStackTrace();
                }

                final String tooltip = "Pen Server at " + localHost + "\n[double-click to turn ON/OFF]";
                // the icon in the system tray
                trayIcon = new TrayIcon(imageON, tooltip, popup);
                trayIcon.setImageAutoSize(true);
                trayIcon.addActionListener(getOnOffListener());

                try {
                        systemTray.add(trayIcon);
                } catch (final AWTException e) {
                        e.printStackTrace();
                }

                // start the pen server!
                PenServer.startJavaServer(comPort, tcpipPort);
                serverRunning = true;
        }

        private ActionListener getExitListener() {
                return new ActionListener() {
                        public void actionPerformed(ActionEvent e) {
                                System.out.println("Exiting the Pen Server Tray App...");
                                System.exit(0);
                        }
                };
        }

        private ActionListener getOnOffListener() {
                if (iconListener == null) {
                        iconListener = new ActionListener() {

                                public void actionPerformed(ActionEvent ae) {
                                        if (serverRunning) {
                                                trayIcon.displayMessage("Pen is Offline", "Pen Server stopped.",
                                                                TrayIcon.MessageType.INFO);
                                                PenServer.stopServers();
                                                trayIcon.setImage(imageOFF);
                                                onOffItem.setLabel(START_PEN_SERVER_MSG);
                                                serverRunning = false;
                                        } else {
                                                trayIcon.displayMessage("Pen is Online",
                                                                "Server started. The pen is now in live mode.", TrayIcon.MessageType.INFO);
                                                PenServer.startJavaServer(comPort, tcpipPort);
                                                trayIcon.setImage(imageON);
                                                onOffItem.setLabel(STOP_PEN_SERVER_MSG);
                                                serverRunning = true;
                                        }
                                }
                        };
                }
                return iconListener;
        }
}

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