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, String n) {
  31                 TheArea = t;
  32                 serv = s;
  33                 MyName = n;
  34                 ParentMUC = muc;
  35                 serv.AddClientThread(this);
  36
  37                 TheArea.setLayout(new GridLayout(25,1));
  38
  39                 for (a=0; a<25; ++a) {
  40                         Linez[a] = new Label(" ");
  41                         Linez[a].setBackground(Color.black);
  42                         Linez[a].setForeground(Color.black);
  43                         TheArea.add(Linez[a]);
  44                         }
  45
  46                 TheArea.validate();
  47
  48                 }
  49
  50         private void ScrollIt(String TheNewLine, Color NewLineColor) {
  51                 for (a=0; a<24; ++a) {
  52                         Linez[a].setText(Linez[a+1].getText());
  53                         Linez[a].setForeground(Linez[a+1].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                                 }
  80                         else {
  81                                 cUser = ":";
  82                                 }
  83                         if (ST.hasMoreTokens()) {
  84                                 cText = ST.nextToken();
  85                                 }
  86                         else {
  87                                 cText = " ";
  88                                 }
  89                         if (!cText.startsWith("NOOP")) {
  90                                 if (!LastLineUser.equals(cUser)) {
  91                                         ScrollIt("", Color.black);
  92                                         ThisLine = cUser + ": ";
  93                                         }
  94                                 else {
  95 ThisLine = "                                  ".substring(0, 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
 118         extends Frame {
 119
 120 wcCitServer serv;
 121 ReceiveChat MyReceive;
 122 Panel AllUsers;
 123 TextField SendBox;
 124 wcchat ParentApplet;
 125
 126
 127 MultiUserChat102(wcCitServer PrimaryServ, wcchat P) {
 128         super ("Multiuser Chat");
 129
 130         String boof;
 131
 132         /* Set up a new server connection as a piggyback to the first. */
 133         serv = PrimaryServ;
 134         ParentApplet = P;
 135
 136         resize(600,400);
 137         setLayout(new BorderLayout());
 138
 139         boof = "This is the buffer before the chat command.";
 140         serv.ServPuts("CHAT");
 141         boof = serv.ServGets();
 142
 143         if (boof.charAt(0) != '8') {
 144                 add("Center", new Label("ERROR: " + boof) );
 145                 show();
 146                 }
 147
 148         else {
 149                 DoChat(PrimaryServ.GetUserName());
 150                 }
 151
 152         }
 153
 154
 155 /*
 156  * Do the actual chat stuff
 157  */
 158 private void DoChat(String MyName) {
 159         String boof;
 160
 161         SendBox = new TextField(80);
 162
 163         AllUsers = new Panel();
 164
 165         add("Center", AllUsers);
 166         add("South", SendBox);
 167         show();
 168
 169         MyReceive = new ReceiveChat(this, AllUsers, serv, MyName);
 170         MyReceive.start();
 171
 172         SendBox.requestFocus();
 173         }
 174
 175
 176 public boolean handleEvent(Event evt) {
 177         int LastSpace;
 178
 179         if ( (evt.target == SendBox) && (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() + serv.GetUserName().length() > 78 ) {
 186                         LastSpace = SendBox.getText().lastIndexOf(' ');
 187                         if (LastSpace < 0) {
 188                                 serv.ServPuts(SendBox.getText());
 189                                 SendBox.setText("");
 190                                 }
 191                         else {
 192                                 serv.ServPuts(SendBox.getText().substring(0,LastSpace));
 193                                 SendBox.setText(SendBox.getText().substring(LastSpace));
 194                                 if (SendBox.getText().charAt(0) == ' ') {
 195                                         SendBox.setText(SendBox.getText().substring(1));
 196                                         }
 197                                 }
 198                         }
 199                 }
 200
 201                 return super.handleEvent(evt);
 202         }
 203
 204
 205 }