IMPLEMENTATION MODULE Timing;
(*
 *  REPERTOIRE
 *  Release 1.6
 *  By Charles Bradford and Cole Brecheen
 *  (c) Copyright 1985-1992 PMI
 *  Green Bay, Wisconsin
 *  All rights reserved
 *  (414) 468-6040
 *
 *  $Header:   D:/logfiles/mods/timing.mov   1.7   10 Mar 1991 15:34:00   coleb  $
 *
 *)


(*EntryDiag:
IMPORT Diagnostics;
:EntryDiag*)

IMPORT EnvironUtils;
IMPORT M2Strings;
IMPORT StrConv;
IMPORT StrEdit;
IMPORT SYSTEM;
IMPORT VWindows;

VAR
  Initialized : BOOLEAN;

  PROCEDURE Init();
    BEGIN
      IF Initialized THEN
        RETURN;
      ELSE
        Initialized := TRUE;
      END;
(*EntryDiag:
      Diagnostics.Init();
:EntryDiag*)

      EnvironUtils.Init();
      M2Strings.Init();
      StrConv.Init();
      StrEdit.Init();
      VWindows.Init();

(*EntryDiag:
      Diagnostics.diagS( 'Entering Timing', '' );
:EntryDiag*)

      BeginTimer();

(*EntryDiag:
      Diagnostics.diagS( 'Exiting Timing', '' );
:EntryDiag*)
    END Init;


  VAR
    hours, minutes, seconds, hunds : CARDINAL;

  PROCEDURE BeginTimer();
    VAR
      dumstr : ARRAY [0..80] OF CHAR;
    BEGIN
      EnvironUtils.GetTime(hours, minutes, seconds, hunds, dumstr);
    END BeginTimer;

  PROCEDURE ReadTimer(VAR hout, mout, sout, hunout : CARDINAL);
    VAR
      dumstr : ARRAY [0..20] OF CHAR;
      hused, mused, sused, hunused : INTEGER;
    BEGIN
      EnvironUtils.GetTime(hout, mout, sout, hunout, dumstr);
      hunused := INTEGER(hunout)-INTEGER(hunds);
      sused := INTEGER(sout)-INTEGER(seconds);
      mused := INTEGER(mout)-INTEGER(minutes);
      hused := INTEGER(hout)-INTEGER(hours);
      IF hunused<0 THEN
        INC( hunused, 100);
        DEC( sused);
      END;
      IF sused<0 THEN
        INC( sused, 60);
        DEC( mused);
      END;
      IF mused<0 THEN
        INC( mused, 60);
        DEC( hused);
      END;
      IF hused<0 THEN
        (* accounts for use through midnight; but does not
           handle use for longer than 24 hours *)
        INC( hused, 24);
      END;
      hunout := hunused;
      sout := sused;
      hout := hused;
      mout := mused;
    END ReadTimer;

  PROCEDURE ShowUsage(name : ARRAY OF CHAR);
    VAR
      h, m, s, hun : CARDINAL;
      dumstr : ARRAY [0..255] OF CHAR;
      numstr : ARRAY [0..10] OF CHAR;
      caption : ARRAY [0..31] OF CHAR;
      dumc : CARDINAL;
    BEGIN
      ReadTimer(h, m, s, hun);
      M2Strings.Concat('You have been using ', name, dumstr);
      StrEdit.Append(dumstr, ' for ');
      StrConv.CardinalToStr(h*60+m, 1, numstr);
      StrEdit.Append(dumstr, numstr);
      StrEdit.Append(dumstr, ' minute');
      IF h+h+m#1 THEN
        StrEdit.Append(dumstr, 's');
      END;
      StrEdit.Append(dumstr, ' and ');
      StrConv.CardinalToStr(s, 1, numstr);
      StrEdit.Append(dumstr, numstr);
      StrEdit.Append(dumstr, ' second');
      IF s#1 THEN
        StrEdit.Append(dumstr, 's');
      END;
      StrEdit.Append(dumstr, ' in this session.');
      caption := 'Elapsed Time';
      dumc := VWindows.MessageBox( VWindows.CurrentWindow,
          SYSTEM.ADR(dumstr), SYSTEM.ADR(caption), 0 );
    END ShowUsage;

BEGIN
  Initialized := FALSE;
  Init();
END Timing.