Softwaresystemen ss.week7.chatbox

package ss.week7.chatbox;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;

/**
 * ServerGui. A GUI for the Server.
 * @author  Theo Ruys
 * @version 2005.02.21
 */
public class ClientGUI extends JFrame implements ActionListener, MessageUI {

    private JButton bConnect;
    private JTextField tfPort;
    private JTextField tfName;
    private JTextField tfAddress;
    private JTextArea taMessages;
    private JTextField msgType;
    private JButton msgSend;
    private Client client;

    /** Constructs a ServerGUI object. */
    public ClientGUI() {
        super("ClientGUI");

        buildGUI();
        setVisible(true);

        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                e.getWindow().dispose();
            }
            public void windowClosed(WindowEvent e) {
                System.exit(0);
            }
        });
    }

    /** builds the GUI. */
    public void buildGUI() {
        setSize(400, 400);

        // Panel p1 - Listen

        JPanel p1 = new JPanel(new FlowLayout());
        JPanel pp = new JPanel(new GridLayout(3,2));

        JLabel lbAddress = new JLabel("Address: ");
        tfAddress = new JTextField(getHostAddress(), 12);

        JLabel lbPort = new JLabel("Port:");
        tfPort = new JTextField("2727", 5);

        JLabel lbName = new JLabel("Name:");
        tfName = new JTextField("", 5);

        pp.add(lbAddress);
        pp.add(tfAddress);
        pp.add(lbName);
        pp.add(tfName);
        pp.add(lbPort);
        pp.add(tfPort);

        bConnect = new JButton("Connect");
        bConnect.addActionListener(this);

        JPanel sendMsg = new JPanel();
        sendMsg.setLayout(new GridLayout(1,2));

        msgType = new JTextField("Bericht");
        msgType.setEnabled(false);
        msgSend = new JButton("Stuur");
        msgSend.addActionListener(this);
        msgSend.setEnabled(false);

        sendMsg.add(msgType);
        sendMsg.add(msgSend);


        p1.add(pp, BorderLayout.WEST);
        p1.add(bConnect, BorderLayout.EAST);

        // Panel p2 - Messages

        JPanel p2 = new JPanel();
        p2.setLayout(new BorderLayout());

        JLabel lbMessages = new JLabel("Messages:");
        taMessages = new JTextArea("", 15, 50);
        taMessages.setEditable(false);
        p2.add(lbMessages);
        p2.add(taMessages, BorderLayout.SOUTH);

        Container cc = getContentPane();
        cc.setLayout(new FlowLayout());
        cc.add(p1);
        cc.add(p2);
        cc.add(sendMsg);

    }

    /** returns the Internetadress of this computer */
    private String getHostAddress() {
        try {
            InetAddress iaddr = InetAddress.getLocalHost();
            return iaddr.getHostAddress();
        } catch (UnknownHostException e) {
            return "?unknown?";
        }
    }

    /**
     * listener for the "Start Listening" button
     */
    public void actionPerformed(ActionEvent ev) {
        Object src = ev.getSource();
        if (src == bConnect) {
            startListening();
        }
        if (src == msgSend) {
            //addMessage(msgType.getText(),client.getClientName());
            client.sendMessage(msgType.getText());
        }
    }

    /**
     * Construct a Server-object, which is waiting for clients. The port field and button should be disabled
     */
    private void startListening() {
        int port = 0;
        int max = 0;

        try {
            port = Integer.parseInt(tfPort.getText());
        } catch (NumberFormatException e) {
            addMessage("ERROR: not a valid portnumber!");
            return;
        }

        String name = tfName.getText();
        String hoststr = tfAddress.getText();
        InetAddress host;
        try {
            host = InetAddress.getByName(hoststr);

            tfPort.setEditable(false);
            bConnect.setEnabled(false);
            tfName.setEditable(false);
            tfAddress.setEditable(false);

            try {
                client = new Client(name, host, port, this);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            client.start();

        } catch (UnknownHostException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        msgSend.setEnabled(true);
        msgType.setEditable(true);
        msgType.setEnabled(true);
        addMessage("User " + name + " joined on port " + port + "...");
        client.sendMessage(name + "\n");
    }

    /** add a message to the textarea  */
    public void addMessage(String msg) {
        taMessages.append(msg + "\n");
    }

    public void addMessage(String msg, String clientName) {
        taMessages.append("<"+clientName+"> " + msg + "\n");
    }

    /** Start a ServerGUI application */
    public static void main(String[] args) {
        ClientGUI gui = new ClientGUI();
    }

}