webcit/static/MultiUserChat102.java

   1 /*
   2  * MultiUserChat102.java
   3  *
   4  * Chat mode...
   5  *
   6  */
   7
   8 import java.awt.*;
   9 import java.util.*;
  10
  11 /*
  12  * ReceiveChat implements a thread which listens on the server socket and
  13  * display anything which comes across the wire in the Panel specified
  14  * to the constructor.
  15  */
  16 class ReceiveChat extends Thread {
  17         Panel TheArea;
  18         wcCitServer serv;
  19         String boof;
  20         String cUser;
  21         String cText;
  22         String ThisLine;
  23         String LastLineUser;
  24         String MyName;
  25         StringTokenizer ST;
  26         MultiUserChat102 ParentMUC;
  27          Label[] Linez = new Label[25];
  28         int a;
  29
  30          ReceiveChat(MultiUserChat102 muc, Panel t, wcCitServer s,
  31                      String n) {
  32                 TheArea = t;
  33                 serv = s;
  34                 MyName = n;
  35                 ParentMUC = muc;
  36                 serv.AddClientThread(this);
  37
  38                 TheArea.setLayout(new GridLayout(25, 1));
  39
  40                 for (a = 0; a < 25; ++a) {
  41                         Linez[a] = new Label(" ");
  42                         Linez[a].setBackground(Color.black);
  43                         Linez[a].setForeground(Color.black);
  44                         TheArea.add(Linez[a]);
  45                 } TheArea.validate();
  46
  47         }
  48
  49         private void ScrollIt(String TheNewLine, Color NewLineColor) {
  50                 for (a = 0; a < 24; ++a) {
  51                         Linez[a].setText(Linez[a + 1].getText());
  52                         Linez[a].setForeground(Linez[a + 1].
  53                                                getForeground());
  54                 }
  55                 Linez[24].setText(TheNewLine);
  56                 Linez[24].setForeground(NewLineColor);
  57         }
  58
  59
  60         public void run() {
  61                 Color UserColor;
  62                 int a;
  63
  64                 LastLineUser = "  ";
  65                 while (true) {
  66                         boof = serv.ServGets();
  67
  68                         if (boof.equals("000")) {
  69                                 serv.ServPuts("QUIT");
  70                                 ParentMUC.dispose();
  71                                 stop();
  72                                 destroy();
  73                         }
  74
  75
  76                         ST = new StringTokenizer(boof, "|");
  77                         if (ST.hasMoreTokens()) {
  78                                 cUser = ST.nextToken();
  79                         } else {
  80                                 cUser = ":";
  81                         }
  82                         if (ST.hasMoreTokens()) {
  83                                 cText = ST.nextToken();
  84                         } else {
  85                                 cText = " ";
  86                         }
  87                         if (!cText.startsWith("NOOP")) {
  88                                 if (!LastLineUser.equals(cUser)) {
  89                                         ScrollIt("", Color.black);
  90                                         ThisLine = cUser + ": ";
  91                                 } else {
  92                                         ThisLine =
  93                                             "                                  ".
  94                                             substring(0,
  95                                                       cUser.length() + 2);
  96                                 }
  97                                 ThisLine = ThisLine + cText;
  98                                 UserColor = Color.green;
  99                                 if (cUser.equals(":")) {
 100                                         UserColor = Color.red;
 101                                 }
 102                                 if (cUser.equalsIgnoreCase(MyName)) {
 103                                         UserColor = Color.yellow;
 104                                 }
 105                                 ScrollIt(ThisLine, UserColor);
 106                                 LastLineUser = cUser;
 107                         }
 108                 }
 109         }
 110
 111 }
 112
 113
 114
 115
 116
 117 public class MultiUserChat102 extends Frame {
 118
 119         wcCitServer serv;
 120         ReceiveChat MyReceive;
 121         Panel AllUsers;
 122         TextField SendBox;
 123         wcchat ParentApplet;
 124
 125
 126          MultiUserChat102(wcCitServer PrimaryServ, wcchat P) {
 127                 super("Multiuser Chat");
 128
 129                 String boof;
 130
 131                 /* Set up a new server connection as a piggyback to the first. */
 132                  serv = PrimaryServ;
 133                  ParentApplet = P;
 134
 135                  resize(600, 400);
 136                  setLayout(new BorderLayout());
 137
 138                  boof = "This is the buffer before the chat command.";
 139                  serv.ServPuts("CHAT");
 140                  boof = serv.ServGets();
 141
 142                 if (boof.charAt(0) != '8') {
 143                         add("Center", new Label("ERROR: " + boof));
 144                         show();
 145                 }
 146
 147                 else {
 148                         DoChat(PrimaryServ.GetUserName());
 149                 }
 150
 151         }
 152
 153
 154 /*
 155  * Do the actual chat stuff
 156  */
 157         private void DoChat(String MyName) {
 158                 String boof;
 159
 160                 SendBox = new TextField(80);
 161
 162                 AllUsers = new Panel();
 163
 164                 add("Center", AllUsers);
 165                 add("South", SendBox);
 166                 show();
 167
 168                 MyReceive = new ReceiveChat(this, AllUsers, serv, MyName);
 169                 MyReceive.start();
 170
 171                 SendBox.requestFocus();
 172         }
 173
 174
 175         public boolean handleEvent(Event evt) {
 176                 int LastSpace;
 177
 178                 if ((evt.target == SendBox)
 179                     && (evt.id == Event.ACTION_EVENT)) {
 180                         serv.ServPuts(SendBox.getText());
 181                         SendBox.setText("");
 182                 }
 183
 184                 else if (evt.target == SendBox) {
 185                         if (SendBox.getText().length() +
 186                             serv.GetUserName().length() > 78) {
 187                                 LastSpace =
 188                                     SendBox.getText().lastIndexOf(' ');
 189                                 if (LastSpace < 0) {
 190                                         serv.ServPuts(SendBox.getText());
 191                                         SendBox.setText("");
 192                                 } else {
 193                                         serv.ServPuts(SendBox.getText().
 194                                                       substring(0,
 195                                                                 LastSpace));
 196                                         SendBox.setText(SendBox.getText().
 197                                                         substring
 198                                                         (LastSpace));
 199                                         if (SendBox.getText().charAt(0) ==
 200                                             ' ') {
 201                                                 SendBox.setText(SendBox.
 202                                                                 getText().
 203                                                                 substring
 204                                                                 (1));
 205                                         }
 206                                 }
 207                         }
 208                 }
 209
 210                 return super.handleEvent(evt);
 211         }
 212
 213
 214 }