TD2/IHM/IHM.java

   1 import java.awt.BorderLayout;
   2 import java.awt.event.ActionEvent;
   3 import java.awt.event.ActionListener;
   4 import java.util.ArrayList;
   5
   6 import javax.swing.BoxLayout;
   7 import javax.swing.JButton;
   8 import javax.swing.JFrame;
   9 import javax.swing.JPanel;
  10 import javax.swing.JScrollPane;
  11 import javax.swing.JTextArea;
  12 import javax.swing.JTextField;
  13 import javax.swing.ScrollPaneConstants;
  14
  15 import java.util.Random;
  16
  17 /**
  18  * Applications réparties
  19  * TP 1
  20  * Chat, Sockets
  21  *
  22  * IHM pour l'application cliente
  23  *
  24  * @author Toto
  25  * @version 1.0
  26  */
  27 public class IHM implements ActionListener {
  28
  29     private JTextArea entrants;
  30     private JTextField sortants;
  31     private ArrayList<String> sendMessages;
  32     //FIXME: use a random name by thread for now, should be setable
  33     private String randName;
  34
  35     IHM() {
  36         sendMessages = new ArrayList<String>();
  37         randName = randomName();
  38     }
  39
  40     private String randomName() {
  41
  42         int leftLimit = 97; // letter 'a'
  43         int rightLimit = 122; // letter 'z'
  44         int targetStringLength = 8;
  45         Random random = new Random();
  46         StringBuilder buffer = new StringBuilder(targetStringLength);
  47         for (int i = 0; i < targetStringLength; i++) {
  48             int randomLimitedInt = leftLimit + (int)(random.nextFloat() * (rightLimit - leftLimit + 1));
  49             buffer.append((char)randomLimitedInt);
  50         }
  51         String generatedString = buffer.toString();
  52
  53         return generatedString;
  54     }
  55
  56     public void go() {
  57         JFrame cadre = new JFrame("Client de discussion de " + randName);
  58         JPanel panneau = new JPanel();
  59         entrants = new JTextArea(15, 30);
  60         entrants.setLineWrap(true);
  61         entrants.setWrapStyleWord(true);
  62         entrants.setEditable(false);
  63         JScrollPane zoneTexte = new JScrollPane(entrants);
  64         zoneTexte.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
  65         zoneTexte.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
  66         sortants = new JTextField(24);
  67         JButton boutonEnvoi = new JButton("Envoi");
  68         boutonEnvoi.addActionListener(this);
  69         panneau.add(zoneTexte);
  70         panneau.add(sortants);
  71         panneau.add(boutonEnvoi);
  72         cadre.getContentPane().add(BorderLayout.CENTER, panneau);
  73         cadre.setSize(400, 310);
  74         cadre.setVisible(true);
  75
  76         panneau.setLayout(new BoxLayout(panneau, BoxLayout.Y_AXIS));
  77         cadre.pack();
  78     } // fin methode go
  79
  80     synchronized public void actionPerformed(ActionEvent ev) {
  81         sendMessages.add(sortants.getText());
  82         sortants.setText("");
  83         sortants.requestFocus();
  84         this.notify();
  85     }
  86
  87     synchronized public String getNextMessageToSend() {
  88         try {
  89             if (sendMessages.isEmpty())
  90                 this.wait();
  91             }
  92         catch (Exception e) {
  93             System.err.println("Exception : " + e);
  94             e.printStackTrace();
  95         }
  96         String mess = (String)sendMessages.remove(0);
  97         System.out.println("IHM -> message a envoyer : " + mess);
  98         return randName + "> " + mess;
  99     }
 100
 101     public void writeMessage(String mess) {
 102         System.out.println("IHM -> message a ecrire : " + mess);
 103         entrants.append(mess + "\n");
 104     }
 105
 106 } // fin classe SimpleClientDiscussion