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PACKET hp laserjet printer
 
(**************************************************************************)
(*                                                Stand   : 03.02.88      *)
(*  HP 2686A LaserJet / LaserJet+                 Verison : 4             *)
(*                                                Autor   : Rudolf Ruland *)
(**************************************************************************)
 
       DEFINES open,
               close,
               execute,
 
               paper size,
               printer type :
 
LET
(*  underline           =  1,
    bold                =  2,
    italics             =  4,
    reverse             =  8,
 
    underline linetype  =  1, *)
 
    c document          =  1,
    c page              =  2,
 
    c write text        =  1,
    c write cmd         =  2,
    c carriage return   =  3, 
    c move              =  4,
    c draw              =  5,
    c on                =  6, 
    c off               =  7,
    c type              =  8;
 
INT VAR abs x pos
REAL VAR x size, y size;
BOOL VAR is laser jet plus, is landscape;

(*********************************************************************)
 
paper size (21.0, 29.7);
printer type ("LaserJet");
 
PROC paper size (REAL CONST x, y) :
 
  x size := x;
  y size := y;
 
END PROC paper size;
 
PROC paper size : 
 
  line;
  putline ("Papierbreite  =  " + text (x size, 5, 2) + " cm  =  " + text (x size / 2.54, 5, 2) + " Zoll");
  putline ("Papierlaenge  =  " + text (y size, 5, 2) + " cm  =  " + text (y size / 2.54, 5, 2) + " Zoll");
 
END PROC paper size;
 
PROC printer type (TEXT CONST type) :

  is laser jet plus := pos (type, "+") <> 0

END PROC printer type;
 
TEXT PROC printer type :

  IF is laser jet plus
     THEN "LaserJet+"
     ELSE "LaserJet"
  FI

END PROC printer type;

(*********************************************************************)
 
PROC open (INT CONST op code, INT VAR param1, param2) :
 
SELECT op code OF
  CASE c document : open document 
  CASE c page     : open page
END SELECT; 
 
 
. x steps : param1
. y steps : param2
. 
  open document :
    out (""27"E");      (* Reset des Druckers *)
    out (""27"&s1C");   (* 'end of line wrap' aus *)
    out (""27"&l0L");   (* 'perforation skip' aus *)
    out (""27"&l1X");   (* eine Kopie             *)
    out (""27"&l1H");   (* upper tray             *)
    IF pos (material, "landscape") > 0 OR pos (material, "quer") > 0
       THEN is landscape := TRUE;
            x steps      := x step conversion ( y size );
            y steps      := y step conversion ( x size );
            out (""27"&l1O");
       ELSE is landscape := FALSE;
            x steps      := x step conversion ( x size );
            y steps      := y step conversion ( y size );
    FI;
 
. x start : param1
. y start : param2
. 
  open page :
    IF is landscape
       THEN x start  := x step conversion (0.508);     (* 0.200*2.54 *)
            y start  := y step conversion (1.693333);  (* 0.500*2.54 + 2.54/6.0 *)
       ELSE x start  := x step conversion (0.39878);   (* 0.157*2.54 *)
            y start  := y step conversion (1.693333);  (* 0.500*2.54 + 2.54/6.0 *)
    FI;
    IF   pos (material, "lower tray") > 0 COR pos (material, "lowertray") > 0
         THEN out (""27"&l4H");
    ELIF pos (material, "tray") > 0 COR pos (material, "upper tray") > 0 COR pos (material, "uppertray") > 0
         THEN out (""27"&l1H");
    ELIF pos (material, "manual") > 0
         THEN out (""27"&l2H");
    ELIF pos (material, "envelope") > 0
         THEN out (""27"&l3H");
    FI;
    IF material contains a number
       THEN out (""27"&l" + text (number) + "X");
    FI;
    out (""13"");
 
    . material contains a number :
        INT VAR number := pos (material, "0", "9", 1);
        IF number = 0
           THEN FALSE
           ELSE number := max (1, int (subtext (material, number, number + 1)));
                TRUE
        FI
 
END PROC open; 
 
 
PROC close (INT CONST op code, INT CONST param1) :
 
SELECT op code OF
  CASE c document : close document 
  CASE c page     : close page
  OTHERWISE : put (param1)
END SELECT; 
 
. 
  close document :
 
 
(*. remaining y steps : param1*)
.
  close page :
    out (""12"") 
 
END PROC close;
 
 
PROC execute (INT CONST op code, TEXT CONST string, INT CONST param1, param2) :
 
SELECT op code OF
  CASE c write text       :  write text
  CASE c write cmd        :  write cmd
  CASE c carriage return  :  carriage return
  CASE c move             :  move
  CASE c draw             :  draw
  CASE c on               :  on
  CASE c off              :  off
  CASE c type             :  type
END SELECT

 
. from : param1
. to   : param2
.
  write text :
    out subtext (string, from, to)
 
.
  write cmd :
    out subtext (string, from, to)
 
 
(*. x steps to left margin : param1*)
.
  carriage return :
    out (""13"")
 
 
. x steps : param1
. y steps : param2
.
  move :
    IF   x steps <> 0
         THEN x move
    ELIF y steps > 0
         THEN out (""27"&a+" + text (y steps) + "V");
    ELIF y steps < 0
         THEN out (""27"&a"  + text (y steps) + "V");
    FI;
 
    . x move :
        IF is laser jet plus
           THEN laser jet plus x move
           ELSE laser jet x move
        FI;

    . laser jet plus x move :
        IF x steps >= 0
           THEN out (""27"*p+" + text (x steps) + "X");
           ELSE out (""27"*p"  + text (x steps) + "X");
        FI;

    . laser jet x move :
        abs x pos := x pos;
        IF abs x pos >= 0
           THEN out (""27"&a");
                out (text ((abs x pos DIV 5) * 12 + ((abs x pos MOD 5) * 12 + 4) DIV 5));
                out ("H");
           ELSE stop
        FI;

. 
  draw :
    stop
 
 
. modification : param1
.
  on :
    IF on string (modification) <> ""
       THEN out (on string (modification))
       ELSE stop
    FI
 
.
  off :
    IF off string (modification) <> ""
       THEN out (off string (modification))
       ELSE stop
    FI
 
 
. font nr : param1
.
  type :
    out (font string (font nr));
 
END PROC execute;
 
 
END PACKET hp laserjet printer;
 
 
#page# 
(******************************************************************)
(***                                                            ***)
(***   Generierung des Printers                                 ***)
(***                                                            ***)
(******************************************************************)
 
LET printer name = "printer.hp.laserjet",
    up           = ""3""13""5"";
 
TEXT VAR fonttab name := "fonttab.hp.laserjet";
 
BOOL CONST multi user := (pcb (9) AND 255) <> 1;
 
INT VAR pr channel;
TEXT VAR buffer;
 
command dialogue (TRUE);
IF NOT multi user 
  THEN errorstop ("Dieser Treiber arbeitet nur mit Multi-Tasking-EUMEL") 
FI; 
ask for print channel;
ask for printer type;
load font table;
forget (printer name, quiet);
IF multi user THEN generate printer spool FI;
check on;
.
  ask for print channel :
    line;
    put ("gib Druckerkanal:");
    get (pr channel);
    do ("serverchannel(" + text (pr channel) + ")" ) ;
    line;
. 
  ask for printer type :
    printer type (laser jet);
 
    . laser jet :
        line;
        REP out (up); 
            IF yes ("Druckertyp : HP LaserJet")
               THEN LEAVE laser jet WITH "LaserJet" FI;
            out (up);
            IF yes ("Druckertyp : HP LaserJet+")
               THEN LEAVE laser jet WITH "LaserJet+" FI;
        PER;
        ""
.
  load font table :
    line (2);
    write (""13""4"");
    putline ("Die Fonttabelle """ + fonttab name +
             """ enthält die Schrifttypen der");
    putline ("Font Cartriges:");
    putline ("                  92286A  Courier 1");
    putline ("                  92286C  International 1");
    putline ("                  92286D  Prestige Elite");
    putline ("                  92286E  Letter Gothic");
    putline ("                  92286F  TMS Proportional 2");
    putline ("                  92286L  Courier P&L");
    putline ("                  92286M  Prestige Elite P&L");
    putline ("                  92286N  Letter Gothic P&L");
    putline ("                  92286P  TMS RMN P&L");
    putline ("                  92286Q  Memo 1");
    line;
    putline ("Für ein korrektes Druckbild dürfen immer nur die Schrifttypen angesprochen");
    putline ("werden, deren Cartrige eingeschoben ist!");
    IF printer type = "LaserJet"
       THEN line;
            putline ("ELAN-Listings können nur gedruckt werden, wenn ein Cartrige mit dem");
            putline ("Schrifttyp 'LINE PRINTER' eingeschoben ist!");
    FI;
    line (2);
    putline ("Weiter nach Eingabe einer Taste");
    pause;
    IF NOT exists (fonttab name)
       THEN command dialogue (TRUE); 
            REP line (2); 
                putline ("Bitte Archiv mit der Fonttabelle """ +
                          fonttab name + """ einlegen!");
                line;
            UNTIL yes ("Archiv eingelegt") PER;
            reserve archive;
            fetch (fonttab name, archive);
            release (archive);
    FI;
    font table (fonttab name);
    IF multi user
       THEN command dialogue (FALSE); 
            do ("save(""" + font tab name + """,task(""configurator""))") 
    FI;
    forget (fonttab name, quiet);
 
    . reserve archive :
        INT VAR p1, p2;
        archive (" "31" ");
        disable stop;
        list (archive);
        IF is error
           THEN buffer := errormessage;
                p1 := pos (buffer, """", 1 ) + 1;
                p2 := pos (buffer, """", p1) - 1;
                IF p1 > 0 AND p2 > 0
                   THEN clear error;
                        buffer := subtext (buffer, p1, p2);
                        archive (buffer);
                FI;
        FI;
        enable stop;
 
. generate printer spool :
    eumel must advertise;
    cursor (1, 12);
    putline ("In allen bestehenden Tasks - insbesondere in der Task ""PUBLIC"" - muß");
    putline ("die Fonttabelle mit dem Kommando");
    line;
    putline ("      font table (""" + font tab name + """)");
    line;
    putline ("eingestellt werden!!!");
    line (4);
    putline ("Generierung beendet, weiter mit 'SV'");
    generate printer server;
    do (buffer);
 
. generate printer server :
    buffer :=  "break (quiet);";
    buffer CAT "spool manager (PROC printer);";
    buffer CAT "INT VAR reply; DATASPACE VAR ds; FILE VAR file;";
    buffer CAT "PROC printer:";
    buffer CAT "  disable stop;";
    buffer CAT "  continue (server channel);";
    buffer CAT "  check error (error message);";
    buffer CAT "  ds := nilspace;";
    buffer CAT "  REP forget (ds);";
    buffer CAT "      execute print;";
    buffer CAT "      IF is error AND online";
    buffer CAT "         THEN out (""""27""(8U""27""(s0p10h12v0s0b3T"");";
    buffer CAT "              put error; clear error; out (""""12"""");";
    buffer CAT "      FI;";
    buffer CAT "  PER;";
    buffer CAT "END PROC printer;";
    buffer CAT "PROC execute print:";
    buffer CAT "  LET ack = 0, fetch code = 11, file type = 1003;";
    buffer CAT "  enable stop;";
    buffer CAT "  ds := nilspace;";
    buffer CAT "  call (father, fetch code, ds, reply);";
    buffer CAT "  IF reply = ack CAND type (ds) = file type";
    buffer CAT "     THEN file := sequential file (input, ds);";
    buffer CAT "          print (file,";
    buffer CAT "            PROC (INT CONST, INT VAR, INT VAR) open,";
    buffer CAT "            PROC (INT CONST, INT CONST) close,";
    buffer CAT "            PROC (INT CONST, TEXT CONST, INT CONST, INT CONST) execute);";
    buffer CAT "  FI;";
    buffer CAT "END PROC execute print;"; 
    buffer CAT "PROC check error(TEXT CONST message):";
    buffer CAT "  IF is error";
    buffer CAT "     THEN clear error; rename myself (message);";
    buffer CAT "          IF is error THEN end(myself) FI;"; 
    buffer CAT "          pause (9000); end(myself);";
    buffer CAT "  FI;";
    buffer CAT "END PROC check error;";