(* Release 3.10 *)
(*-------------------------------------------------------------------------*
*                                                                          *
*  COMMDEMO.MOD - COMMS Toolkit demonstration program                      *
*                                                                          *
*  COPYRIGHT (C) 1988..1992 Clarion Software Corporation.                  *
*  All Rights Reserved                                                     *
*                                                                          *
*--------------------------------------------------------------------------*)

MODULE CommDemo;
  IMPORT ComSetup,CommUtil,Filenames,IO,Keyboard,Lib,RS232,ScriptProcessor,
         Str,Term,Timer,Window;

  CONST
    TermWin             = Window.WinDef(0,0,79,23,Window.LightGray,Window.Black,TRUE,FALSE,FALSE,FALSE,Window.SingleFrame,Window.White,Window.White);
    StatWin             = Window.WinDef(0,24,79,24,Window.White,Window.Blue,TRUE,FALSE,FALSE,FALSE,Window.SingleFrame,Window.White,Window.White);
    GenWin              = Window.WinDef(2,2,31,6,Window.White,Window.Blue,TRUE,FALSE,FALSE,TRUE,Window.SingleFrame,Window.White,Window.Blue);

(*...............................................*)

  PROCEDURE Init;
    VAR
      stat              : CommUtil.StatusFields;
    BEGIN
      ComSetup.InitSetup;
      WITH ComSetup.Setup.Serial DO
        RS232.SelectPort(Port);
        RS232.InitPort(Baud,DataBits,StopBits,Parity);
      END;
      RS232.Install;
      CASE ComSetup.Setup.Emulation OF
        Term.EmVT100    : Term.EmulateVT100;                              |
        Term.EmVT52     : Term.EmulateVT52;                               |
        Term.EmANSI     : Term.EmulateANSI;                               |
      END;
      CommUtil.InitUtil;
      CommUtil.WrChar := Term.WrChar;
      ScriptProcessor.InitScriptProcessor;
      Timer.StartClock;
      Timer.StopClock;
      FOR stat:=CommUtil.logo TO CommUtil.time DO
        CommUtil.StatusLine(stat)
      END;
    END Init;

(*...............................................*)

  PROCEDURE DialDirectory;
    VAR
      c                 : CHAR;
      Lnth              : CARDINAL;
      Result            : INTEGER;
      FileSpec          : CommUtil.String80;
    BEGIN
      IF ScriptProcessor.ScriptState=ScriptProcessor.Off THEN
        Filenames.MakeFilename('',ComSetup.Setup.General.ScriptDir,'*','.CMD',FileSpec);
        Lnth := Str.Length(FileSpec);
        Result := CommUtil.SelectFile(1,1,'Dial',FileSpec,CommUtil.ScriptFile);
        IF Result>=0 THEN
          FileSpec[Lnth-5]:=0C;
          Str.Concat(CommUtil.ScriptFile,FileSpec,CommUtil.ScriptFile);
          IF ScriptProcessor.LoadScript(CommUtil.ScriptFile) THEN
          END;
        END;
      END;
    END DialDirectory;

(*................................................*)

  PROCEDURE ToggleLogging(xpos,ypos:CARDINAL);
    VAR
      Ch                : CHAR;
    BEGIN
      IF CommUtil.LogMode<>CommUtil.CloseLogging THEN
        CommUtil.SetLogMode(CommUtil.CloseLogging);
      ELSE
        CommUtil.CaptureFile[0] := 0C;
        CommUtil.ReadString(xpos,ypos,'Text Logging',' File Name? ',CommUtil.CaptureFile);
        IF (CommUtil.CaptureFile[0]=0C) AND (CommUtil.FuncKeyTyped<>CommUtil.Escape) THEN
          CommUtil.CaptureFile := 'TERM.LOG';
        END;
        IF CommUtil.CaptureFile[0]<>0C THEN
          CommUtil.SetLogMode(CommUtil.OpenLogging);
        END;
      END;
    END ToggleLogging;

(*................................................*)

  PROCEDURE LeaveProgram():BOOLEAN;
    VAR
      Ch                : CHAR;
      Win               : Window.WinType;
      Def               : Window.WinDef;
    BEGIN
      Def := GenWin;
      WITH Def DO
        Foreground := CommUtil.Colors.GenFore;
        Background := CommUtil.Colors.GenBack;
        FrameFore  := CommUtil.Colors.GenFrFore;
        FrameBack  := CommUtil.Colors.GenFrBack;
      END ;
      Win := Window.Open(Def);
      Window.GotoXY(3,2);
      IO.WrStr('Leave Program (Y/N): N');
      IO.WrChar(CHR(8));
      REPEAT
        Ch:=CAP(IO.RdKey());
        IF (Ch=CHR(27)) OR (Ch=CHR(13)) THEN
          Ch:='N';
        END;
      UNTIL (Ch='Y') OR (Ch='N');
      Window.Close(Win);
      RETURN Ch='Y';
    END LeaveProgram;

(*................................................*)

  PROCEDURE Intro;
    VAR
      Ch                : CHAR;
      Def               : Window.WinDef;
      Win               : Window.WinType;
    BEGIN
      Def := GenWin;
      WITH Def DO
        X1:=24;
        Y1:=3;
        X2:=X1+31;
        Y2:=Y1+17;
        CursorOn:=FALSE;
        Foreground := CommUtil.Colors.GenFore;
        Background := CommUtil.Colors.GenBack;
        FrameFore  := CommUtil.Colors.GenFrFore;
        FrameBack  := CommUtil.Colors.GenFrBack;
      END;
      Win := Window.Open(Def);
      IO.WrStr(' ----------------------------');
      IO.WrLn;
      IO.WrStr(' TopSpeed Modula-2           ');
      IO.WrLn;
      IO.WrStr(' Comms Toolkit V3.10     Demo');
      IO.WrLn;
      IO.WrStr(' ----------------------------');
      IO.WrLn;
      IO.WrStr(' Keys:                       ');
      IO.WrLn;
      IO.WrLn;
      IO.WrStr('   F1       : This info      ');
      IO.WrLn;
      IO.WrStr('   ALT-0..9 : Send Macro     ');
      IO.WrLn;
      IO.WrStr('   PgUp     : Upload a File  ');
      IO.WrLn;
      IO.WrStr('   PgDn     : Download a File');
      IO.WrLn;
      IO.WrStr('   ALT-B    : Send Break     ');
      IO.WrLn;
      IO.WrStr('   ALT-D    : Dial Menu      ');
      IO.WrLn;
      IO.WrStr('   ALT-H    : Hangup         ');
      IO.WrLn;
      IO.WrStr('   ALT-L    : Toggle Logging ');
      IO.WrLn;
      IO.WrStr('   ALT-S    : Setup          ');
      IO.WrLn;
      IO.WrStr('   ALT-X    : Exit Demo      ');
      WHILE NOT Term.KeyPressed() DO
      END;
      Window.Close(Win);
    END Intro;

(*................................................*)

  PROCEDURE Terminal;
    VAR
      Carrier,EndSession: BOOLEAN;

(*. . . . . . . . . . . . . . . . . . . . . . . .*)

    PROCEDURE CheckCarrier;
      BEGIN
        IF Carrier<>RS232.CarrierDetect() THEN
          (* carrier has changed state *)
          Carrier := RS232.CarrierDetect();
          CommUtil.StatusLine(CommUtil.carrier);
          IF Carrier THEN
            Timer.StartClock
          ELSE
            Timer.StopClock
          END;
        END;
        IF Carrier THEN
          Timer.UpdateTimer;
          CommUtil.StatusLine(CommUtil.time);
        END;
      END CheckCarrier;

(*. . . . . . . . . . . . . . . . . . . . . . . .*)

    PROCEDURE SpecialKey;
      VAR
        c               : CHAR;
      BEGIN
        c := Term.RdKey();
        CASE ORD(c) OF
          31            : (* Alt-S *)
                          ComSetup.ChangeSetup;
                          CommUtil.StatusLine(CommUtil.emul);             |
          32            : (* Alt-D *)
                          DialDirectory;                                  |
          35            : (* Alt-H - Hangup Line *)
                          RS232.UnInstall;   (* forces DTR & RTS to drop *)
                          Lib.Delay(500);
                          RS232.Install;                                  |
          38            : (* Alt-L - Toggle Logging *)
                          ToggleLogging(10,10);                           |
          45            : (* Alt-X - Exit Program *)
                          EndSession := LeaveProgram();                   |
          48            : (* ALT-B - Send Break for half a second *)
                          RS232.SetBreak(5);                              |
          59            : (* F1 - Show Intro again *)
                          Intro;                                          |
          73            : (* PgUp *)
                          CommUtil.DoUpload;                              |
          81            : (* PgDn *)
                          CommUtil.DoDownload;                            |
          120..129      : (* ALT-0 to ALT-9 *)
                          CommUtil.TransmitMacro((ORD(c)+1) MOD 10);      |
        END;
      END SpecialKey;

(*. . . . . . . . . . . . . . . . . . . . . . . .*)

    PROCEDURE CheckKeyboard;
      VAR
        c               : CHAR;
      BEGIN
        IF Term.KeyPressed() THEN
          c := Term.RdKey();
          IF c=0C THEN
            SpecialKey
          ELSIF (c=CHR(27)) AND (ScriptProcessor.ScriptState<>ScriptProcessor.Off) THEN
            ScriptProcessor.TerminateScript;
          ELSE
            RS232.SerialWrite(c,1);
          END;
        END;
      END CheckKeyboard;

(*. . . . . . . . . . . . . . . . . . . . . . . .*)

    PROCEDURE CheckRemote;
      VAR
        c               : CHAR;
        Cnt             : CARDINAL;
      BEGIN
        Cnt := 0;
        WHILE (Cnt<10) AND RS232.SerialRead(c,0) DO
          CommUtil.Screen(c);
          INC(Cnt);
        END;
      END CheckRemote;

(*. . . . . . . . . . . . . . . . . . . . . . . .*)

    BEGIN (* Terminal *)
      EndSession := FALSE;
      Carrier := FALSE;
      REPEAT
        CheckCarrier;
        CheckRemote;
        CheckKeyboard;
        ScriptProcessor.SingleStep;
      UNTIL EndSession;
    END Terminal;

(*...............................................*)

  VAR
    Def                 : Window.WinDef;
  BEGIN (* CommDemo *)
    Def := StatWin;
    WITH Def DO
      Foreground := CommUtil.Colors.StatFore;
      Background := CommUtil.Colors.StatBack;
    END;
    CommUtil.StatW := Window.Open(Def);
    Def := TermWin;
    WITH Def DO
      Foreground := CommUtil.Colors.TermFore;
      Background := CommUtil.Colors.TermBack;
    END;
    CommUtil.TermW := Window.Open(Def);
    Init;
    Intro;
    Terminal;
    RS232.UnInstall;
    CommUtil.SetLogMode(CommUtil.CloseLogging);
    Window.Close(CommUtil.TermW);
    Window.Close(CommUtil.StatW);
    Window.CursorOn;
  END CommDemo.