Topspeed_JPI/TS-V3/EXAMPLES/CLIENT.MOD

IMPLEMENTATION MODULE Client;
(*
        Copyright (C) 1988,1989 Jensen & Partners International
*)

IMPORT Globals, Window, IO, Str, Misc, Btree;
FROM Globals IMPORT GetMenu, ItemIndex, ItemData, ClientIndex, ClientData;

VAR
  ClientWin, lastWin : Window.WinType;
  OnScreen : BOOLEAN;
  EmptyClient, BlankClient : ClientRec;
  keyPressed : CHAR;

PROCEDURE PressAKey( txt : ARRAY OF CHAR);
VAR
  ch : CHAR;
BEGIN
    Window.TextColor(Globals.PromptFore);
    Window.TextBackground(Globals.DisplayBack);
    Globals.WriteAt(9,1,txt);
    Window.GotoXY(30,9);
    ch := IO.RdKey();
    Window.GotoXY(1,9);
    Window.ClrEol();
    keyPressed := CAP(ch);
END PressAKey;


PROCEDURE MakeKey( keyA, myClientA : ADDRESS );
VAR
  key : POINTER TO Globals.FileKey;
  myClient : POINTER TO ClientRec;
BEGIN
    key := keyA;
    myClient := myClientA;
    Str.Copy(key^,myClient^.CNum);
END MakeKey;


PROCEDURE Display( aClient : ClientRec );
(*
        This procedure displays the client record on the screen.
*)
VAR
  S : ARRAY[0..10] OF CHAR;
  ok : BOOLEAN;
BEGIN
    Window.TextColor(Globals.DataFore);
    Window.TextBackground(Globals.DataBack);
    WITH aClient DO
         Globals.WriteAt(1,15,CNum);
         Globals.WriteAt(2,15,LName);
         Globals.WriteAt(2,48,FName);
         Globals.WriteAt(3,15,Street);
         Globals.WriteAt(4,15,City);
         Globals.WriteAt(4,48,State);
         Globals.WriteAt(4,62,Zip);
         Globals.WriteAt(6,15,Phone);
         Globals.WriteAt(6,55,"          ");
         Str.FixRealToStr(Balance,2,S,ok);
         IF ok = FALSE THEN
            Globals.WriteAt(6,55,"???");
         ELSE
            Globals.WriteAt(6,55,S);
         END;
    END;
END Display;

PROCEDURE Clear( );
(*
        This procedure clears the previous client information.
*)
BEGIN
    Display(BlankClient);
END Clear;

PROCEDURE Template( );
(*
        This procedure un-hides the client display window and displays
        the field names.
*)
BEGIN
    lastWin := Window.Used();
    Window.Use(ClientWin);
    Window.PutOnTop(ClientWin);
    Clear();
    OnScreen := TRUE;
END Template;

PROCEDURE Input( VAR aClient : ClientRec;  Clear : BOOLEAN );
(*
        This procedure inputs the client information from the user.
        If Clear is TRUE, then the information is cleared before the
        user enters new information.  If Clear is FALSE, Display() is
        called first to show the current information, and it is then
        edited.
*)
VAR
    ok,
    Continue : BOOLEAN;
    Field    : CARDINAL;
    ch       : CHAR;
    S        : ARRAY[0..10] OF CHAR;
BEGIN
    IF Clear THEN
       aClient := EmptyClient;
       Display(BlankClient);
    END;
    Display(aClient);
    Continue := TRUE;
    Field := 1;
    WITH aClient DO
        WHILE (Continue) DO
           CASE Field OF
                1: Window.GotoXY(15,1); Misc.InputStr(CNum,10);
              | 2: Window.GotoXY(15,2); Misc.InputStr(LName,15);
              | 3: Window.GotoXY(48,2); Misc.InputStr(FName,10);
              | 4: Window.GotoXY(15,3); Misc.InputStr(Street,25);
              | 5: Window.GotoXY(15,4); Misc.InputStr(City,15);
              | 6: Window.GotoXY(48,4); Misc.InputStr(State,2);
              | 7: Window.GotoXY(62,4); Misc.InputStr(Zip,5);
              | 8: Window.GotoXY(15,6); Misc.InputStr(Phone,13);
              | 9: Window.GotoXY(55,6);
                   Str.FixRealToStr(Balance,2,S,ok);
                   Misc.InputStr(S,10);
                   Balance := Str.StrToReal(S,ok);
           END;
           INC(Field);
           IF Field >= 10 THEN
              Window.TextColor(Globals.PromptFore);
              Window.TextBackground(Globals.DisplayBack);
              Globals.WriteAt(8,1,"Are these ok? ");
              Window.GotoXY(15,8);
              ch := IO.RdKey();
              Globals.WriteAt(8,1,"                  ");
              IF CAP(ch) = 'Y' THEN
                 Continue := FALSE;
              ELSE
                 Field := 1;
                 Window.TextColor(Globals.DataFore);
                 Window.TextBackground(Globals.DataBack);
              END;
           END;
        END;
    END;
END Input;

PROCEDURE Search( VAR aClient : ClientRec ) : BOOLEAN ;
(*
        This procedure asks the user for search information, and then
        searches for the given record.  If it is found, it is copied to
        aClient, and TRUE is returned.  If it is not found, FALSE is
        returned.
*)
VAR
  searchStr : Globals.FileKey;
  ch : CHAR;
BEGIN
    Clear();
    IF aClient.CNum[0] > ' ' THEN
       Str.Copy(searchStr,aClient.CNum);
    ELSE
       Window.GotoXY(15,1);
       searchStr := "";
       Misc.InputStr(searchStr,10);
    END;
    IF searchStr[0] <= ' ' THEN
       Clear();
       RETURN FALSE;
    END;
    Str.Caps(searchStr);
    IF Btree.Find(ClientIndex,searchStr,aClient) THEN
       Display(aClient);
    ELSE
       IF Btree.Search(ClientIndex,searchStr,aClient) THEN
          Display(aClient);
          REPEAT
             GetMenu("N)ext P)revious or T)his One? ",
                      Globals.CharSet{'N','P','T'}, ch);
             CASE ch OF
                  'N' : IF Btree.Next(ClientIndex,aClient) THEN
                           Clear();
                           Display(aClient);
                        ELSE
                           Globals.Beep();
                        END;
                | 'P' : IF Btree.Prev(ClientIndex,aClient) THEN
                           Clear();
                           Display(aClient);
                        ELSE
                           Globals.Beep();
                        END;
                | 'T' : ;
             ELSE
                Globals.Beep();
             END;
          UNTIL ch = 'T';
       ELSE
          Globals.WriteAt(8,1,"Failed Search!");
          PressAKey("Press Any Key to Continue... ");
          Window.TextColor(Globals.PromptFore);
          Window.TextBackground(Globals.DisplayBack);
          Globals.WriteAt(8,1,"              ");
          RETURN FALSE;
       END;
    END;
    PressAKey("E)dit, D)elete, or Q)uit? ");
    IF keyPressed = 33C THEN
       RETURN FALSE;
    ELSIF keyPressed = 'E' THEN
       Btree.Delete(ClientData);
       Input(aClient,FALSE);
       Btree.Add(ClientData,aClient,SIZE(aClient));
       RETURN TRUE;
    ELSIF keyPressed = 'D' THEN
       Btree.Delete(ClientData);
       RETURN FALSE;
    ELSE
       RETURN TRUE;
    END;
END Search;

PROCEDURE Close( );
(*
        This procedure removes the client display window from the screen.
*)
BEGIN
    Window.Hide(ClientWin);
    Window.Use(lastWin);
    Window.PutOnTop(lastWin);
    OnScreen := FALSE;
END Close;

BEGIN
    ClientWin := Window.Open( Window.WinDef( 0, 4, 79, 14,
            Window.White,Window.Black,TRUE,FALSE,TRUE,TRUE,
            Window.SingleFrame,Window.White,Window.Black) );
    Window.SetFrame(ClientWin,Window.SingleFrame,Globals.DisplayBorder,
            Globals.DisplayBack);
    Window.Use(ClientWin);
    Window.TextColor(Globals.DisplayFore);
    Window.TextBackground(Globals.DisplayBack);
    Window.Clear();
    Globals.WriteAt(1,1,"Cust Number:");
    Globals.WriteAt(2,1,"Last Name:");
    Globals.WriteAt(2,40,"First:");
    Globals.WriteAt(3,1,"Street:");
    Globals.WriteAt(4,1,"City:");
    Globals.WriteAt(4,40,"State:");
    Globals.WriteAt(4,55,"Zip:");
    Globals.WriteAt(6,1,"Phone:");
    Globals.WriteAt(6,40,"Balance:");

    WITH BlankClient DO
         CNum := "          ";
         LName := "               ";
         FName := "          ";
         Street := "                         ";
         City := "               ";
         State := "  ";
         Zip := "     ";
         Phone := "             ";
         Balance := 0.0;
    END;

    WITH EmptyClient DO
         CNum := "";
         LName := "";
         FName := "";
         Street := "";
         City := "";
         State := "";
         Zip := "";
         Phone := "";
         Balance := 0.0;
    END;

    OnScreen := FALSE;
END Client.