'****************************************************************************
' qfig.bas  <-- bfig.bas <-- motivated by "xfig" on X-*indow of UN*X
'                2/21/1993        T.Iwakuma ([email protected])
'****************************************************************************
' "mouse.obj" and "graph.obj" must be "link"ed and "lib"ed to make
'            "qfig.lib" as well as "qfig.qlb".
'                       interpreter must be activated as "qb /lqfig"
'****************************************************************************
'$INCLUDE: 'QB.BI'
'$DYNAMIC
'$INCLUDE: 'MOUSE.BI'
'$INCLUDE: 'QFIG.BI'
'****************************************************************************
qfigtitle$ = "qfig Ver.1.1a (3/24/1997)"
'qfigtitle1$ = "modified for J-3100/IBM compatible PCs"
qfigtitle2$ = "by: William Ofosu-Amaah"
'qfigtitle3$ = "from: qfig NEC Ver.0.9c+1 (3/20/1993)"
'qfigtitle4$ = "by: Mr T.Iwakuma ([email protected])"
qfigtitle5$ = "([email protected])"
'****************************************************************************
'
IF INSTR(COMMAND$, "/?") <> 0 THEN
  whelp
  END
END IF

Preparation
'                                                                   key call
ON KEY(1) GOSUB f.1
ON KEY(2) GOSUB f.2
ON KEY(3) GOSUB f.3
ON KEY(4) GOSUB f.4
ON KEY(5) GOSUB f.5
ON KEY(6) GOSUB f.6
ON KEY(7) GOSUB f.7
ON KEY(8) GOSUB f.8
ON KEY(9) GOSUB f.9
ON KEY(10) GOSUB f.10
ON KEY(15) GOSUB fnctn:  KEY 15, CHR$(&H0) + CHR$(&H1) 'ESC
ON KEY(16) GOSUB redraw: KEY 16, CHR$(&H4) + CHR$(&H13) 'CTRL+R
ON KEY(17) GOSUB Help: KEY 17, CHR$(&H4) + CHR$(&H23) 'CTRL+H
ON KEY(19) GOSUB quit: KEY 19, CHR$(&H4) + CHR$(&H10) 'CTRL+Q
ON KEY(20) GOSUB clreset: KEY 20, CHR$(&H4) + CHR$(&H1F) 'CTRL+S
ON KEY(22) GOSUB stext:     KEY 22, CHR$(&H4) + CHR$(&H14)'CTRL+T
ON KEY(24) GOSUB widewindow: KEY 24, CHR$(&H4) + CHR$(&H11) 'CTRL+W
KeySwitch 1
KEY(8) ON: KEY(9) ON: KEY(10) ON: KEY(17) ON: KEY(19) ON
KEY OFF
ON ERROR GOTO somethingwrong
'                                                           mouse activation
IF MouseReady% THEN                           '<=== when Mouse is used
 MouseInit                                   '|
 MouseMode 1                                 '|
 MouseHide                                   '|
 MouseBorder pymin%, pxmin%, pymax%, pxmax%  '|
 MouseLocate py%, px%                        '|
 mouswitch% = -1                             '|
END IF                                        '<=== when Mouse is used

SCREEN scrtype%
GOSUB title
VIEW SCREEN (0, 0)-(windowx%(0), windowy%(0))
WINDOW SCREEN (0, 0)-(windowx%(0), windowy%(0))
CL.R.edraw 0, 0
SetInst -1

'                                                         Main infinite LOOP
DO
 pxold% = px%: pyold% = py%
 keyin% = KeyIsTyped%
 IF ((keyin% > 4) AND (job% = 0)) THEN
       ON keyin% - 4 GOSUB rollup, rolldown, leftmost, rightmost
 END IF
 IF keyin% = 2 OR keyin% = 3 THEN
       qx% = INT(CSNG(px% - pxo%) / wndwxy(wndwfctr%) + .9)
       qy% = INT(CSNG(py% - pyo%) / wndwxy(wndwfctr%) + .9)
       IF qy% > windowy%(0) - 48 THEN
         IF qx% < 15 THEN
               IF py% >= pymax% - 4 THEN GOSUB rolldown
         ELSEIF qx% < 295 THEN
               i% = INT((CSNG(qx%) + 41!) / 56!)
               IF qx% < 56 * i% + 8 THEN
                 GOSUB setbymouse
                 ON i% GOSUB f.1, f.2, f.3, f.4, f.5
               END IF
         ELSEIF qx% > 366 THEN
               i% = INT((CSNG(qx%) - 31!) / 56!)
               IF qx% < 56 * i% + 80 THEN
                 GOSUB setbymouse
                 ON i% - 5 GOSUB f.6, f.7, f.8, f.9, f.10
               END IF
         END IF
       ELSEIF py% <= pymin% + 4 THEN
         IF px% <= pxmin% + 4 THEN
               dwndwfctr% = 1
               GOSUB widewindowbymouse
         ELSEIF px% >= pxmax% - 4 THEN
               dwndwfctr% = -1
               GOSUB widewindowbymouse
         ELSE
               GOSUB rollup
         END IF
       ELSEIF px% <= pxmin% + 4 THEN
         GOSUB leftmost
       ELSEIF px% >= pxmax% - 4 THEN
         GOSUB rightmost
       END IF
 END IF
 CursorDisplay pxold%, pyold%
 CursorDisplay px%, py%
LOOP
'                                                show or not show text
stext:
KeySwitch 0
IF wtext% = 0 THEN
  wtext% = 1
ELSE
  wtext% = 0
END IF
CL.R.edraw 0, 0
KeySwitch 1
RETURN
'                                                           command by mouse
setbymouse:
IF py% - pyo% < windowy%(wndwfctr%) - INT(32! * wndwxy(wndwfctr%) + .9) THEN
 func% = 0: func1% = 0: GOSUB fnctn1  'Top Line of Function row
ELSEIF py% - pyo% < windowy%(wndwfctr%) - INT(16! * wndwxy(wndwfctr%) + .9) THEN
 func% = 1: func1% = 1: GOSUB fnctn1 'Middle Line
ELSE
 func% = 2: func1% = 1: GOSUB fnctn1 'Bottom Line
END IF

RETURN
'                                                            clear and reset
clreset:
LOCATE 12, 30: PRINT " Are you sure (Y/N) " '; CHR$(7);
DO: a$ = KeyIsTouched$
LOOP UNTIL a$ = CHR$(CR) OR (a$ <> "" AND INSTR("YyNn", a$) <> 0)
IF UCASE$(a$) = "Y" THEN
 nobj% = 0
 CL.R.edraw 0, 0: SetInst -1
ELSE
 GOSUB redraw
END IF
RETURN
'                                                                     ending
quit:
QUIT0
RETURN
'
quit1:
IF mouswitch% THEN MouseHide: MouseInit         '<=== when Mouse is used
KeySwitch 0: KEY(8) OFF: KEY(9) OFF: KEY(10) OFF: KEY(17) OFF: KEY(19) OFF
RETURN
'
title:
deg = 3.14 / 180
IF ega% = 0 THEN
cf% = 12
cb% = 15
cs% = 1
cline% = 1
ytext% = 16
ELSE
cf% = 4
cb% = 7
cs% = 0
cline% = 1
ytext% = 18
END IF
'cl% and cb% should never be the same'
xlogo% = 50

PAINT (xlogo% + 135, 100), cb%
CIRCLE (xlogo% + 205, 100), 50, cline%, , , 1
CIRCLE (xlogo% + 215, 105), 50, cline%, 70 * deg, 236 * deg, 1
CIRCLE (xlogo% + 212, 103), 67, cline%, 250 * deg, 80 * deg, 1
CIRCLE (xlogo% + 200, 100), 67, cline%, , , 1
PAINT (xlogo% + 135, 100), cf%, cline%
PAINT (xlogo% + 156, 100), cs%, cline%
PAINT (xlogo% + 278, 103), cs%, cline%
LINE (xlogo% + 205, 150)-(xlogo% + 240, 180), 2
LINE (xlogo% + 190, 166)-(xlogo% + 240, 200), 2
LINE (xlogo% + 240, 180)-(xlogo% + 290, 170), 2
LINE (xlogo% + 240, 200)-(xlogo% + 290, 170), 2
LINE (xlogo% + 205, 150)-(xlogo% + 190, 166), 2
PAINT (xlogo% + 240, 198), cf%, 2
LINE (xlogo% + 205, 150)-(xlogo% + 190, 166), cf%
LINE (xlogo% + 205, 150)-(xlogo% + 240, 180), cline%
LINE (xlogo% + 190, 166)-(xlogo% + 240, 200), cline%
LINE (xlogo% + 240, 180)-(xlogo% + 290, 170), cline%
LINE (xlogo% + 240, 200)-(xlogo% + 290, 170), cline%
LINE -STEP(3, 8), cline%
LINE -STEP(-50, 30), cline%
LINE -STEP(-30, -25), cline%
PAINT (xlogo% + 290, 172), cs%, cline%
CIRCLE (xlogo% + 193, 165), 20, cline%, 48 * deg, 113 * deg, 1
PAINT (xlogo% + 193, 147), cf%, cline%
CIRCLE (xlogo% + 205, 100), 50, cf%, 250 * deg, 270 * deg, 1
LINE (xlogo% + 280, 160)-(xlogo% + 285, 130), cline%
LINE -STEP(-5, 0), cline%
LINE -STEP(2, -8), cline%
LINE -STEP(40, 0), cline%
LINE -STEP(-3, 8), cline%
LINE -STEP(-20, 0), cline%
LINE -STEP(-1, 7), cline%
LINE -STEP(15, 0), cline%
LINE -STEP(-2, 6), cline%
LINE -STEP(-13, 0), cline%
LINE -STEP(-3, 17), cline%
LINE -STEP(-14, 0), cline%
PAINT (xlogo% + 282, 159), cf%, cline%
LINE (xlogo% + 326, 160)-(xlogo% + 331, 122), cline%
LINE -STEP(10, 0), cline%
LINE -STEP(-5, 38), cline%
LINE -STEP(-10, 0), cline%
PAINT (xlogo% + 328, 158), cf%, cline%
CIRCLE (xlogo% + 367, 140), 17, cline%, 36 * deg, 160 * deg, 1
CIRCLE (xlogo% + 368, 138), 8, cline%, 25 * deg, 160 * deg, 1
LINE (xlogo% + 350, 135)-(xlogo% + 348, 149), cline%
LINE (xlogo% + 361, 135)-(xlogo% + 357, 147), cline%
LINE (xlogo% + 375, 135)-(xlogo% + 382, 135), cline%
LINE -STEP(-1, -4), cline%
CIRCLE (xlogo% + 365, 143), 17, cline%, 200 * deg, 335 * deg, 1
CIRCLE (xlogo% + 366, 144), 8, cline%, 200 * deg, 335 * deg, 1
LINE (xlogo% + 373, 146)-(xlogo% + 367, 146), cline%
LINE -STEP(2, -4), cline%
LINE -STEP(20, 0), cline%
LINE -STEP(-2, 4), cline%
LINE -STEP(-6, 0), cline%
LINE -STEP(0, 3), cline%
PAINT (xlogo% + 377, 133), cf%, cline%

PSET (xlogo% + 120, 210), cline%
LINE -STEP(58, 0), cline%
PSET (xlogo% + 120, 210), cline%
LINE -STEP(12, 11), cline%
LINE -STEP(-12, 11), cline%
LINE -STEP(55, 0), cline%
CIRCLE (xlogo% + 178, 213), 3, cline%, 270 * deg, 90 * deg, 1
CIRCLE (xlogo% + 178, 219), 3, cline%, 90 * deg, 270 * deg, 1
LINE (xlogo% + 181, 213)-(xlogo% + 181, 224), cline%
LINE (xlogo% + 175, 219)-(xlogo% + 175, 250), cline%
CIRCLE (xlogo% + 250, 0), 234, cline%, 252 * deg, 288 * deg, 1
PAINT (xlogo% + 126, 214), cf%, cline%
PAINT (xlogo% + 176, 219), cf%, cline%
PSET (xlogo% + 320, 210), cline%
LINE -STEP(60, 0), cline%
PSET (xlogo% + 380, 210), cline%
LINE -STEP(-12, 11), cline%
LINE -STEP(12, 11), cline%
LINE -STEP(-57, 0), cline%
CIRCLE (xlogo% + 320, 219), 3, cline%, 270 * deg, 90 * deg, 1
CIRCLE (xlogo% + 320, 213), 3, cline%, 90 * deg, 270 * deg, 1
LINE (xlogo% + 317, 213)-(xlogo% + 317, 225), cline%
LINE (xlogo% + 323, 219)-(xlogo% + 323, 250), cline%
CIRCLE (xlogo% + 250, 0), 260, cline%, 253.5 * deg, 286.4 * deg, 1
PAINT (xlogo% + 321, 219), cf%, cline%
PAINT (xlogo% + 320, 226), cf%, cline%
PAINT (xlogo% + 376, 212), cf%, cline%
s$ = "Version 1.1a"
DIM inRegs AS RegType, outRegs AS RegType
LOCATE ytext%, 27 + INT(xlogo% / 8)
inRegs.bx = &H80 + (cf%)
FOR i = 1 TO LEN(s$)
 inRegs.ax = &HE00 + ASC(MID$(s$, i, 1))
 CALL INTERRUPT(&H10, inRegs, outRegs)
NEXT i
SLEEP 1
CLS 0: RETURN

'                                                      alternative functions
fnctn:
func% = (func% + 1) MOD 3
fnctn1:
LOCATE line2%, 2: PRINT " "; : COLOR 7
LOCATE line1%, 2: PRINT " "; : COLOR 7
LOCATE line1% + 1, 2: PRINT " "; : COLOR 7
LOCATE line2% + func%, 2: COLOR 6: PRINT "@"; : RETURN
'LOCATE line2% + func1%, 2: PRINT " "; : COLOR 7: RETURN

'fnctn: SWAP func%, func1%
'LOCATE line2% + func%, 2: COLOR 6: PRINT "@";
'LOCATE line2% + func1%, 2: PRINT " "; : COLOR 7: RETURN

'                                                                 need help?
Help: Help.Me: RETURN
'                                                                     redraw
redraw: CL.R.edraw 0, 0: RETURN
'                                                                   grouping
'grouping: G.Group: GOTO f.end
'                                                         rollup/down screen
rollup:
IF pymin% - vscroll% < 0 THEN RETURN
ipy% = -vscroll%: GOTO updown
rolldown:
IF pymax% + vscroll% > REGIONYMAX THEN RETURN
ipy% = vscroll%
updown:
pyo% = pyo% + ipy%: py% = py% + ipy%
row% = row% + ipy%: pyold% = pyold% + ipy%
pymin% = pyo% + INT(margin% * wndwxy(wndwfctr%) + .9)
pymax% = pyo% + windowy%(wndwfctr%) - INT(margin% * wndwxy(wndwfctr%) + .9)
pymax2% = pyo% + windowy%(wndwfctr%) - INT(margin% * wndwxy(wndwfctr%) + .9) - texth% * 3 * INT(wndwxy(wndwfctr%) + .9) - 21
GOTO rst.scrn
'                                                     move left/right screen
leftmost:
IF pxmin% - hscroll% < 0 THEN RETURN
ipx% = -hscroll%: GOTO leftright
rightmost:
IF pxmax% + hscroll% > REGIONXMAX THEN RETURN
ipx% = hscroll%
leftright:
pxo% = pxo% + ipx%: px% = px% + ipx%
col% = col% + ipx%: pxold% = pxold% + ipx%
pxmin% = pxo% + INT(margin% * wndwxy(wndwfctr%) + .9)
pxmax% = pxo% + windowx%(wndwfctr%) - INT(margin% * wndwxy(wndwfctr%) + .9)
'                                                               reset   screen
rst.scrn:
IF mouswitch% THEN                             '<=== when Mouse is used
 MouseBorder pymin%, pxmin%, pymax%, pxmax%   '|
END IF                                         '<=== when Mouse is used
WINDOW SCREEN (pxo%, pyo%)-(pxo% + windowx%(wndwfctr%), pyo% + windowy%(wndwfctr%))
CL.R.edraw 0, 0
RETURN
'                                                      widen window by mouse
widewindowbymouse:
wndwfctr% = wndwfctr% + dwndwfctr%
IF wndwfctr% > UBOUND(wndwxy) THEN wndwfctr% = 0
IF wndwfctr% < LBOUND(wndwxy) THEN wndwfctr% = UBOUND(wndwxy)
GOTO windowide
'                                                               widen window
widewindow:
KeySwitch 0
KEY(17) OFF: KEY(19) OFF   'Also disable Help, Quit
CLS 0
PRINT "Reduction rate:"
FOR i% = 0 TO 3: PRINT TAB(4); i%; " : "; INT(1000 / wndwxy(i%)) / 10;
PRINT TAB(16); "%": NEXT i%
PRINT "Select one [0-3]"
DO: a$ = INKEY$: LOOP UNTIL a$ <> "" AND INSTR("0123", a$) <> 0
wndwfctr% = VAL(a$)
windowide:
pxmin% = pxo% + INT(margin% * wndwxy(wndwfctr%) + .9)
pxmax% = pxo% + windowx%(wndwfctr%) - INT(margin% * wndwxy(wndwfctr%) + .9)
pymin% = pyo% + INT(margin% * wndwxy(wndwfctr%) + .9)
pymax% = pyo% + windowy%(wndwfctr%) - INT(margin% * wndwxy(wndwfctr%) + .9)
pymax2% = pyo% + windowy%(wndwfctr%) - INT(margin% * wndwxy(wndwfctr%) + .9) - texth% * 3 * INT(wndwxy(wndwfctr%) + .9) - 21
IF px% > pxmax% OR px% < pxmin% THEN
 IF px% > pxmax% THEN
       px% = INT(CSNG(pxmax%) / 4!) * 4
 ELSE
       px% = INT(CSNG(pxmin%) / 4! + .9) * 4
 END IF
 pxold% = px%: col% = px%
END IF
IF py% > pymax% OR py% < pymin% THEN
 IF py% > pymax% THEN
       py% = INT(CSNG(pymax% - INT(48! * wndwxy(wndwfctr%))) / 4!) * 4
 ELSE
       py% = INT(CSNG(pymin%) / 4! + .9) * 4
 END IF
 pyold% = py%: row% = py%
END IF
KEY(17) ON: KEY(19) ON  'Renable Help, Quit
KeySwitch 1
GOTO rst.scrn
'                                                      straight lines / move
f.1:
seljob% = 1
KEY(1) OFF
IF kswitch% = 1 AND func% = 0 THEN
 linesel% = 0
 G.Curve 1, 0
ELSEIF kswitch% = 1 AND func% = 1 THEN
 linesel% = 1
 MoveObj 0
ELSE
 FillPattern
 COLOR 10
 LOCATE line1% + 1, 7: PRINT fill%;
 LOCATE line1% + 1, 3: PRINT "Fil-P";
 COLOR 7
 IF inbox% = 1 THEN
   IF fill% <> 0 THEN
         LINE (sxg%, syg%)-(px%, py%), 2, B
         PAINT ((sxg% + px%) / 2, (syg% + py%) / 2), 0, 2
   END IF
   LINE (sxg%, syg%)-(px%, py%), 0, BF
   LINE (sxg%, syg%)-(px%, py%), 0, BF
   IF fill% = 0 THEN
         LINE (sxg%, syg%)-(px%, py%), 7, B
   ELSE
         LINE (sxg%, syg%)-(px%, py%), 2, B
         PAINT ((sxg% + px%) / 2, (syg% + py%) / 2), tlp$(fill%), 2
   END IF
 ELSEIF inbox% = 2 THEN
  obj%(nobj%, 6) = fill%
    LINE (INT(xx(nobj%, 0)), INT(yy(nobj%, 0)))-(INT(xx(nobj%, 1)), INT(yy(nobj%, 1))), 0, BF
    D.Lines INT(xx(nobj%, 0)), INT(yy(nobj%, 0)), INT(xx(nobj%, 1)), INT(yy(nobj%, 1)), 7, 2, obj%(nobj%, 4), 0, obj%(nobj%, 6), 0
 END IF
END IF
seljob% = 0
KEY(1) ON
GOTO f.end
'                                                              curves / copy
f.2:
KEY(2) OFF
IF kswitch% = 1 AND func% = 0 THEN
 seljob% = 2
 linesel% = 0
 G.Curve 2, 0
 seljob% = 0
ELSEIF kswitch% = 1 AND func% = 1 THEN
 seljob% = 2
 linesel% = 1
 MoveObj 1
 seljob% = 0
ELSE
 chartype% = chartype% + 1: IF chartype% > UBOUND(chartype$) THEN chartype% = 0
 COLOR 10: LOCATE line1% + 1, 10: PRINT chartype$(chartype%); : COLOR 7
END IF
KEY(2) ON
GOTO f.end
'                                             circle+ellipse/ symmetric copy
f.3:
KEY(3) OFF
IF kswitch% = 1 AND func% = 0 THEN
 seljob% = 3
 linesel% = 0
 G.Crcl.Ellps
 seljob% = 0
ELSEIF kswitch% = 1 AND func% = 1 THEN
 seljob% = 3
 linesel% = 1
 CopySymm
 seljob% = 0
ELSE    'Just added
 SELECT CASE charpt%
       CASE 10
           charpt% = 12
       CASE 12
           charpt% = 10
 END SELECT
 COLOR 10: LOCATE line1% + 1, 17: PRINT charpt%;
 LOCATE line1% + 1, 20: PRINT "pt."; : COLOR 7
END IF
KEY(3) ON
GOTO f.end
'                                                                arc/ rotate
f.4:
seljob% = 4
IF func% = 0 THEN
 linesel% = 0
 G.Arc
ELSEIF func% = 1 THEN
 linesel% = 1
 Rotate
ELSE
 COLOR 7
 GOSUB widewindow
END IF
seljob% = 0
GOTO f.end
'                                                                  box/ edit
f.5:
seljob% = 5
IF func% = 0 THEN
 linesel% = 0
 G.Box
ELSEIF func% = 1 THEN
 linesel% = 1
 EditObject
ELSE
 GOSUB stext
 SELECT CASE wtext%
    CASE 0
      COLOR 3: LOCATE line1% + 1, 31: PRINT "T_Hide"; : COLOR 7
    CASE 1
      COLOR 3: LOCATE line1% + 1, 31: PRINT "T_Show"; : COLOR 7
 END SELECT
END IF
seljob% = 0
GOTO f.end
'                                                               polygon/ cut
f.6:
seljob% = 6
IF func% = 0 THEN
 linesel% = 0
 G.Curve 1, 1
ELSEIF func% = 1 THEN
 linesel% = 1
 DispCut
ELSE
 CL.R.edraw 0, 0
END IF
seljob% = 0
GOTO f.end
'                                                         closed curve/ kill
f.7:
seljob% = 7
IF func% = 0 THEN
 linesel% = 0
 G.Curve 2, 1
ELSEIF func% = 1 THEN
 linesel% = 1
 KillObject
ELSE
 COLOR 7
 GOSUB clreset
END IF
seljob% = 0
GOTO f.end
'                                                           arrow/ line type
f.8:
IF kswitch% = 1 AND func% = 0 THEN
 seljob% = 8
 KEY(8) OFF
 linesel% = 0
 G.Arrows
 seljob% = 0
 KEY(8) ON
 GOTO f.end
ELSE
 ltype% = ltype% + 1: IF ltype% > UBOUND(ltp$) THEN ltype% = 0
 kky$(18) = ltp$(ltype%)
 COLOR 10: LOCATE line1%, 61: PRINT kky$(18); : COLOR 7
 RETURN
END IF
'                                                         strings/ thickness
f.9:
IF kswitch% = 1 AND func% = 0 THEN
 seljob% = 9
 KEY(9) OFF
 linesel% = 0
 G.Char
 seljob% = 0
 KEY(9) ON
 GOTO f.end
ELSE
 thick% = thick% + 1: IF thick% > UBOUND(lth$) THEN thick% = 0
 kky$(19) = lth$(thick%)
 COLOR 10: LOCATE line1%, 68: PRINT kky$(19); : COLOR 7
 RETURN
END IF
'                                                     file operations/ pitch
f.10:
IF kswitch% = 1 AND func% = 0 THEN
 IO.File
 GOTO f.end
ELSE
 SELECT CASE s%

       CASE 1
           s% = 4
           kky$(20) = "Pitch4"
       CASE 4
           s% = 8
           kky$(20) = "Pitch8"
       CASE 8
           s% = 1
           kky$(20) = "Pitch1"
 END SELECT

 COLOR 10: LOCATE line1%, 75: PRINT kky$(20); : COLOR 7
 RETURN
END IF
'
f.end: pxold% = px%: pyold% = py%
RETURN

somethingwrong:
CLOSE : OPEN "$panic$.qfg" FOR OUTPUT AS #1
wrong% = 1
CLS 0
IO.Save 3: CLOSE
wrong% = 0
COLOR 14: PRINT : PRINT
PRINT TAB(10); CHR$(7); "Ummm...  Something wrong happened..."; CHR$(7)
COLOR 7: PRINT : PRINT TAB(10); "Error code is #"; ERR
SELECT CASE ERR
 CASE 7
  PRINT : PRINT TAB(10); "Out of memory. Free some more conventional memory"
 CASE 9
  PRINT : PRINT TAB(10); "A subscript is out of range"
 CASE 52
  PRINT : PRINT TAB(10); "Illegal DOS filename"
 CASE 64
  PRINT : PRINT TAB(10); "Illegal DOS filename"

END SELECT
PRINT : PRINT TAB(10); "Objects are saved into '$panic$.qfg'"
PRINT : PRINT
SLEEP 3
GOSUB quit1: KEY ON: END

'                                                                       data
DATA 88,00,00,00,88,00,00,00
DATA CC,00,33,00,CC,00,33,00,CC,33,CC,33,CC,33,CC,33
'--------------------------------------------------------------------------
tex.pitch:
'set by \wd and \ht of \box of each character; 7/24/1992
' roman 10pt
DATA 333,278,500,833,500,833,778,250,389,389,500,778,167,778,278,500
DATA 500,500,500,500,500,500,500,500,500,500,278,278,778,778,778,472
DATA 778,750,708,722,764,681,653,785,750,386,514,778,625,917,750,778
DATA 681,778,736,556,722,750,750,1028,750,750,611,278,333,278,525,360
DATA 333,500,556,444,556,444,292,500,556,278,306,528,278,833,556,525
DATA 556,528,392,394,389,556,528,722,528,528,444,500,278,500,525
' bold 10pt
DATA 383,350,603,958,575,958,894,301,447,447,575,894,192,778,319,575
DATA 575,575,575,575,575,575,575,575,575,575,319,319,778,894,778,543
DATA 894,869,818,831,882,756,724,904,900,465,594,901,692,1092,900,864
DATA 786,864,862,639,800,885,869,1189,869,869,703,319,383,319,525,414
DATA 383,559,639,511,639,527,335,575,639,319,351,607,319,958,639,604
DATA 639,607,474,454,447,639,607,831,607,607,511,500,278,500,525
' italic 10pt
DATA 358,307,514,818,500,818,767,257,409,409,511,767,170,778,307,511
DATA 511,511,511,511,511,511,511,511,511,511,307,307,778,767,778,511
DATA 767,743,704,716,755,678,653,774,743,386,525,769,627,897,743,767
DATA 678,767,729,562,716,743,743,999,743,743,613,307,358,307,525,368
DATA 358,511,460,414,511,414,307,460,511,307,307,460,302,818,562,465
DATA 511,460,422,409,332,537,460,664,464,486,409,500,278,500,525
' bold-italic 10pt
DATA 414,386,621,944,548,944,886,310,473,473,591,886,197,852,356,591
DATA 591,591,591,591,591,591,591,591,591,591,356,356,852,886,852,591
DATA 886,866,817,827,876,757,727,895,896,472,611,895,698,1073,896,855
DATA 787,855,859,650,796,881,866,1160,866,866,709,356,414,356,575,426
DATA 414,591,532,479,591,479,378,532,591,356,356,532,350,944,650,538
DATA 591,532,502,487,385,621,532,768,561,562,491,548,304,548,575
'

REM $STATIC
SUB Chr.Input (aci$)
' ----- character input -----
'  allow to use left/right arrows, back space and delete
'  presumably all other char's are visible and no longer than 2 lines
aci$ = RTRIM$(aci$)
lciold% = POS(0): mciold% = CSRLIN: cci% = LEN(aci$) + 1
LOCATE mciold%, lciold%, 1, 14, 15
DO
 LOCATE mciold%, lciold%: PRINT SPACE$(LEN(aci$) + 4);
 length% = LEN(aci$)
 LOCATE mciold%, lciold%: PRINT aci$;
'  LOCATE , , 1, 0, 7
 mci% = mciold%
 kci% = lciold% - 1
 IF cci% = length% + 1 THEN kci% = kci% + 1
 FOR ici% = 1 TO cci%
       kkci% = LEN(MID$(aci$, ici%, 1))
       IF kkci% = 2 AND kci% = 79 THEN kci% = kci% + 1
       kci% = kci% + kkci%
 NEXT ici%
 IF kci% > 80 THEN kci% = kci% - 80: mci% = mci% + 1
 IF cci% <> length% + 1 AND LEN(MID$(aci$, cci%, 1)) = 2 THEN kci% = kci% - 1
 LOCATE mci%, kci%
 DO: cci$ = INKEY$: LOOP WHILE cci$ = ""

 SELECT CASE cci$
       CASE CHR$(&H8) ' back-space
         IF cci% <> 1 THEN
               aci$ = MID$(aci$, 1, cci% - 2) + MID$(aci$, cci%)
               cci% = cci% - 1
         END IF
       CASE CHR$(&H0) + CHR$(&H4B)' left-arrow
         IF cci% <> 1 THEN
               cci% = cci% - 1
         END IF
       CASE CHR$(&H0) + CHR$(&H53)' delete
         IF length% > 0 THEN
               aci$ = MID$(aci$, 1, cci% - 1) + MID$(aci$, cci% + 1)
         END IF
       CASE CHR$(&H0) + CHR$(&H4D)' right-arrow
         IF cci% < length% + 1 THEN
               cci% = cci% + 1
         END IF
       CASE IS >= CHR$(&H20) ' visible characters
       IF (length% < nodemax% - 1) THEN
         aci$ = MID$(aci$, 1, cci% - 1) + cci$ + MID$(aci$, cci%)
         cci% = cci% + 1
       END IF
       END SELECT
toolong:
LOOP UNTIL cci$ = CHR$(&HD)
LOCATE , , 0, 0, 15
'
END SUB

SUB CursorDisplay (ppxx%, ppyy%)
'                                                     cursor mark on and off
xyshift% = INT(5! * wndwxy(wndwfctr%))
PUT (ppxx% - xyshift%, ppyy% - xyshift%), curs%, XOR
IF mouswitch% THEN MouseLocate ppyy%, ppxx%  '<=== when Mouse is used
aa = ppxx% * .25: bb = ppyy% * .25
ad = aa - INT(aa) + .001: bd = bb - INT(bb) + .001
aa = INT(aa): bb = INT(bb)
a$ = "<" + RIGHT$("  " + STR$(aa), 3) + ":"
a$ = a$ + RIGHT$("  " + STR$(bb), 3) + ">"
b$ = "(" + MID$(STR$(ad), 2, 3) + ":" + MID$(STR$(bd), 2, 3) + ")"
COLOR 7
LOCATE line2%, 38: PRINT a$;
LOCATE line1%, 38: PRINT b$;
PUT (ppxx% - 2, 3 + pyo%), markx%, XOR
PUT (3 + pxo%, ppyy% - 2), marky%, XOR
'
END SUB

SUB CursorMotion (keyin%)
'                                  cursor motion with cursor mark on and off
pxold% = px%: pyold% = py%
keyin% = KeyIsTyped%
IF job% <> 0 AND pyold% > pymax2% THEN
pyold% = pymax2%
CursorDisplay pxold%, pyold%
END IF
CursorDisplay pxold%, pyold%
CursorDisplay px%, py%
'
END SUB

SUB KeyDisplay
'                                         function-key instruction displayed
COLOR 3
FOR i% = 1 TO 5: LOCATE line2%, i% * 7 - 4: PRINT kky$(i%);
LOCATE line1%, i% * 7 - 4: PRINT kky$(i% + 10); : NEXT i%
SELECT CASE wtext%
  CASE 0
    LOCATE line1% + 1, 31: PRINT "T_Hide";
  CASE 1
    LOCATE line1% + 1, 31: PRINT "T_Show";
END SELECT

LOCATE line1% + 1, 24: PRINT " Zoom";
LOCATE line1% + 1, 47: PRINT "Redraw";
LOCATE line1% + 1, 55: PRINT "Reset";


COLOR 14: LOCATE line1% + 1, 64: PRINT "[CTRL+h=HELP]";
'COLOR 12: LOCATE line1% + 1, 64: PRINT "[QFIG ver. 1.1a]";

COLOR 10
LOCATE line1% + 1, 7: PRINT fill%;
LOCATE line1% + 1, 3: PRINT "Fil-P";
LOCATE line1% + 1, 10: PRINT chartype$(chartype%);
LOCATE line1% + 1, 17: PRINT charpt%;
LOCATE line1% + 1, 20: PRINT "pt."; : COLOR 3


FOR i% = 6 TO 7: LOCATE line2%, 5 + i% * 7: PRINT kky$(i%);
LOCATE line1%, 5 + i% * 7: PRINT kky$(i% + 10); : NEXT i%
FOR i% = 8 TO 10: COLOR 3: LOCATE line2%, 5 + i% * 7: PRINT kky$(i%);
COLOR 10: LOCATE line1%, 5 + i% * 7: PRINT kky$(i% + 10); : NEXT i%: COLOR 7
LOCATE line2% + func%, 2: COLOR 6: PRINT "@"; : COLOR 7

COLOR 6
LOCATE line3%, 20: PRINT "L-but(SPC)|R-but(RET)";
'LOCATE line3%, 19: PRINT "L-but=SPC/y|R-but=RET/n";
LOCATE line3%, 60: PRINT "L+R (DEL)"; : COLOR 7

CursorDisplay px%, py%
'
END SUB

FUNCTION KeyIsTouched$
'
IF mouswitch% THEN MousePoll row%, col%, lbut%, rbut% '<=== when Mouse is used
KeyIsTouched$ = INKEY$
'
END FUNCTION

FUNCTION KeyIsTyped%
'                                            which key has been typed so far
'            1:motion                    2:space or left button
'            3:return or right button    4:delete or both button (sensitive)
keyin% = 0
DO
 DO
       IF Help% = 1 AND mouswitch% <> 0 THEN
         keyin% = 1: Help% = 0
         EXIT DO
       END IF
       q$ = KeyIsTouched$
 LOOP UNTIL q$ <> "" OR row% <> py% OR col% <> px% OR lbut% <> 0 OR rbut% <> 0
 SELECT CASE q$
       CASE CHR$(&H0) + CHR$(UP)
         IF py% - s% >= pymin% THEN py% = py% - s%: keyin% = 1
       CASE CHR$(&H0) + CHR$(DOWN)
         IF py% + s% <= pymax% THEN py% = py% + s%: keyin% = 1
       CASE CHR$(&H0) + CHR$(LEFT)
         IF px% - s% >= pxmin% THEN px% = px% - s%: keyin% = 1
       CASE CHR$(&H0) + CHR$(RIGHT)
         IF px% + s% <= pxmax% THEN px% = px% + s%: keyin% = 1
       CASE CHR$(SP)
         keyin% = 2
       CASE CHR$(CR)
         keyin% = 3
       CASE CHR$(&H0) + CHR$(DEL)
         keyin% = 4
       CASE CHR$(&H0) + CHR$(&H49) 'CTRL + PGUP
         keyin% = 5
       CASE CHR$(&H0) + CHR$(&H51) 'CTRL + PGDN
         keyin% = 6
       CASE CHR$(&H0) + CHR$(&H73) 'CTRL + LEFT
         keyin% = 7
       CASE CHR$(&H0) + CHR$(&H74) 'CTRL + RIGHT
         keyin% = 8
       CASE ""
         IF mouswitch% THEN
                IF lbut% <> 0 THEN
                 keyin% = 2
                 DO
              MousePoll row%, col%, lbut%, rbut% '<=== when Mouse is used
                 LOOP UNTIL lbut% = 0 OR rbut% <> 0
                 IF rbut% <> 0 THEN keyin% = 4
               END IF
               IF rbut% <> 0 THEN
                 keyin% = 3
                 DO
              MousePoll row%, col%, lbut%, rbut% '<=== when Mouse is used
                 LOOP UNTIL rbut% = 0 OR lbut% <> 0
                 IF lbut% <> 0 THEN keyin% = 4
               END IF
               IF row% - py% THEN
                 IF row% > pymax% THEN row% = pymax%
                 IF row% < pymin% THEN row% = pymin%
                 py% = row%
                 IF keyin% = 0 THEN keyin% = 1
               END IF
               IF col% - px% THEN
                 IF col% > pxmax% THEN col% = pxmax%
                 IF col% < pxmin% THEN col% = pxmin%
                 px% = col%
                 IF keyin% = 0 THEN keyin% = 1
               END IF
               IF keyin% = 4 THEN
                 DO
              MousePoll row%, col%, lbut%, rbut% '<=== when Mouse is used
                 LOOP UNTIL rbut% = 0 AND lbut% = 0
               END IF
         END IF
 END SELECT
     IF (job% <> 0) AND py% > pymax2% THEN py% = pymax2%
     IF (py% + texth% - 5) > pymax2% AND job% = 5 THEN py% = pymax2% - texth% + 5
IF Help% = 1 THEN keyin% = 1
IF ((keyin% > 4) AND (job% <> 0) AND (keyin% <> 9)) THEN keyin% = 0
LOOP UNTIL keyin% <> 0
KeyIsTyped% = keyin%
Help% = 0
'
END FUNCTION

SUB KeySwitch (ksw%)
'                                                          key on/off switch
kswitch% = ksw%   '<-- global definition ?
IF kswitch% = 1 THEN
 KEY(1) ON: KEY(2) ON: KEY(3) ON: KEY(4) ON: KEY(5) ON: KEY(6) ON
 KEY(7) ON: KEY(15) ON: KEY(16) ON: KEY(18) ON
 KEY(20) ON: KEY(21) ON: KEY(22) ON: KEY(23) ON: KEY(24) ON
ELSE
'  KEY(3) OFF:
 KEY(4) OFF: KEY(5) OFF: KEY(6) OFF
 KEY(7) OFF: KEY(15) OFF: KEY(16) OFF: KEY(18) OFF
 KEY(20) OFF: KEY(21) OFF: KEY(22) OFF: KEY(23) OFF: KEY(24) OFF
END IF
'
END SUB

SUB Preparation
'                                                               preparations
ltp%(0) = &HFFFF: ltp%(1) = &H8888: ltp%(2) = &HC3C3: ltp%(3) = &HA0A0
ltp$(0) = " Solid": ltp$(1) = "Dotted"
ltp$(2) = " Dash ": ltp$(3) = "D-Dash"

lth$(0) = " Thin ": lth$(1) = "Thick1": lth$(2) = "Thick2"

FOR i% = 1 TO 3: tlp$(i%) = ""
FOR j% = 1 TO 8: READ tt$: tt = VAL("&H" + tt$)
FOR k% = 1 TO 4: tlp$(i%) = tlp$(i%) + CHR$(tt): NEXT k%, j%, i%

nocheat% = 0: IF INSTR(COMMAND$, "/NC") <> 0 THEN nocheat% = 1

nofile% = 1: IF INSTR(COMMAND$, "/F") <> 0 THEN nofile% = 0

'nofile% = 0
wspec% = 0: IF INSTR(COMMAND$, "/S") <> 0 THEN wspec% = 1

ega% = 0: IF INSTR(COMMAND$, "/E") <> 0 THEN ega% = 1
'chartype$(0) = "Roman       ": chartype$(1) = "Bold        "
'chartype$(2) = "Italic      ": chartype$(3) = "Bold Italic "

chartype$(0) = " Roman": chartype$(1) = " Bold "
chartype$(2) = "Italic": chartype$(3) = "Bld-It"

'original KEEP

chartex$(0, 0) = "\xpt\rm ": chartex$(0, 1) = "\xpt\bf "
chartex$(0, 2) = "\xpt\it ": chartex$(0, 3) = "\xpt\FonttenBI "
chartex$(1, 0) = "\xiipt\rm ": chartex$(1, 1) = "\xiipt\bf "
chartex$(1, 2) = "\xiipt\it ": chartex$(1, 3) = "\xiipt\FonttwlBI "
charjtex$(0, 0) = "\tendm ": charjtex$(0, 1) = "\tendg "
charjtex$(1, 0) = "\twelvedm ": charjtex$(1, 1) = "\twelvedg "

'original end

chartype% = 0: charpt% = 12
chattr%(0, 0) = 7: chattr%(0, 1) = 0
chattr%(1, 0) = 11: chattr%(1, 1) = 6
chattr%(2, 0) = 7: chattr%(2, 1) = 11
chattr%(3, 0) = 11: chattr%(3, 1) = 10

' set by \wd \ht of \hbox at 10pt; 7/24/1992
jpitch% = 915: jheight(0) = .77088: jheight(1) = .77088
' set by \ht of height of "A" in each font at 10pt; 7/24/1992
eheight(0) = .68333: eheight(1) = .68611
eheight(2) = .68333: eheight(3) = .68611
'
RESTORE tex.pitch
FOR i% = 0 TO 94: READ epitch%(0, i%): NEXT i%
FOR i% = 0 TO 94: READ epitch%(1, i%): NEXT i%
FOR i% = 0 TO 94: READ epitch%(2, i%): NEXT i%
FOR i% = 0 TO 94: READ epitch%(3, i%): NEXT i%
'                      scriptsize up/down motion in dot (* point * 0.25 mm)
scrpt(0) = 0!: scrpt(1) = .5: scrpt(2) = -.2

Ins(0).L = SPACE$(15): Ins(0).R = SPACE$(15): Ins(0).D = SPACE$(15)
Ins(1).L = "    mid-pts set": Ins(1).R = "last pt. set   ": Ins(1).D = "cancel"
Ins(2).L = "circle cnt/rads": Ins(2).R = "ellps diag.pts.": Ins(2).D = "cancel"
Ins(3).L = "     end points": Ins(3).R = "on the arc     ": Ins(3).D = "cancel"
Ins(4).L = "  diagonal pts.": Ins(4).R = " diagonal pts. ": Ins(4).D = "cancel"
Ins(5).L = "       position": Ins(5).R = "       position": Ins(5).D = "cancel"
Ins(6).L = "    <--- / --->": Ins(6).R = "<----->        ": Ins(6).D = "cancel"
Ins(7).L = "  object select": Ins(7).R = "  region select": Ins(7).D = "cancel"
Ins(8).L = "  object select": Ins(8).R = "  region select ": Ins(8).D = "cancel"
Ins(9).L = "  displace node": Ins(9).R = "cut node        ": Ins(9).D = "cancel"
Ins(10).L = "  object select": Ins(10).R = "  region select ": Ins(10).D = "cancel"
Ins(11).L = "wrt hrzntl axis": Ins(11).R = "wrt vrtcl axius": Ins(11).D = "cancel"
Ins(12).L = "         rotate": Ins(12).R = "set(angle/obj) ": Ins(12).D = "cancel"
Ins(13).L = "  object select": Ins(13).R = "  region select": Ins(13).D = "cancel"

s% = 4: s1% = 1: px% = 320: py% = 200: mouswitch% = 0
pxo% = 0: pyo% = 0: inbox% = 0
func% = 0: func1% = 1: job% = 0: seljob% = 0: Help% = 0
nobj% = 0: ltype% = 0: thick% = 0: fill% = 0
xmin% = REGIONXMAX: xmax% = 0: ymin% = REGIONYMAX: ymax% = 0
pi = 4! * ATN(1!): group% = 1: margin% = 7

wndwfctr% = 0
wndwxy(0) = 1!: wndwxy(1) = 1.3125: wndwxy(2) = 1.8: wndwxy(3) = 2.2
IF ega% = 0 THEN
  windowx%(0) = 639: windowy%(0) = 479: texth% = 16
  scrtype% = 12: line1% = 29: line2% = 28: line3% = 27
ELSE
  windowx%(0) = 639: windowy%(0) = 349: texth% = 14
  scrtype% = 9: line1% = 24: line2% = 23: line3% = 22
END IF
FOR i% = 1 TO 3: windowx%(i%) = INT(CSNG(windowx%(0) + 1) * wndwxy(i%) - 1)
windowy%(i%) = INT(CSNG(windowy%(0) + 1) * wndwxy(i%) - 1): NEXT i%
pxmin% = margin%: pxmax% = windowx%(0) - margin%
pymin% = margin%: pymax% = windowy%(0) - margin%
pymax2% = windowy%(0) - texth% * 4 - 5 - margin%
winpy% = windowy%(0) - texth% * 4 - margin%
'                                                               cursor marks
SCREEN scrtype%
LINE (320, 195)-STEP(0, 10): LINE (315, 200)-STEP(10, 0)
GET (315, 195)-(325, 205), curs%: CLS
LINE (318, 195)-(322, 195): LINE (317, 196)-(323, 196)
LINE (317, 196)-(317, 197): LINE (323, 196)-(323, 197)
LINE (318, 196)-(318, 198): LINE (322, 196)-(322, 198)
LINE (320, 197)-(320, 200): LINE (319, 198)-(319, 200)
LINE (321, 198)-(321, 200)
LINE (315, 200)-(316, 200): LINE (324, 200)-(325, 200)
LINE (317, 201)-(318, 201): LINE (322, 201)-(323, 201)
LINE (318, 202)-(322, 202)
LINE (315, 204)-(316, 204): LINE (324, 204)-(325, 204)
LINE (317, 203)-(318, 203): LINE (322, 203)-(323, 203)
GET (315, 195)-(325, 205), curs1%: CLS                 'cursor mark for KILL
CIRCLE (323, 197), 2: CIRCLE (323, 203), 2
LINE (315, 196)-(323, 201): LINE (315, 204)-(323, 199)
LINE (316, 196)-(324, 201): LINE (316, 204)-(324, 199)
GET (315, 195)-(325, 205), curs2%: CLS                  'cursor mark for CUT

CIRCLE (3, 3), 3, 10: GET (0, 0)-(6, 6), mark%: CLS
LINE (0, 0)-(6, 6), 10, BF: CIRCLE (3, 3), 3, 0
GET (0, 0)-(6, 6), markg%: CLS

LINE (2, 0)-(4, 4), 6: LINE -(0, 4), 6: LINE -(2, 0), 6: PAINT (2, 3), 6
GET (0, 0)-(4, 4), markx%: CLS
LINE (0, 2)-(4, 0), 6: LINE -(4, 4), 6: LINE -(0, 2), 6: PAINT (3, 2), 6
GET (0, 0)-(4, 4), marky%: CLS

kky$(1) = " Line ": kky$(2) = " Curve": kky$(3) = "CrcEll"
kky$(4) = " Arc  ": kky$(5) = " Box  ": kky$(6) = " Poly "
kky$(7) = "Cl-Crv": kky$(8) = " Arrow"
kky$(9) = "String": kky$(10) = " File "
kky$(11) = " Move ": kky$(12) = " Copy ": kky$(13) = "Sym.cp"
kky$(14) = "Rotate": kky$(15) = " Edit ": kky$(16) = "DspCut"
kky$(17) = " Kill ": kky$(18) = " Solid"
kky$(19) = " Thin ": kky$(20) = "Pitch4"
kky$(21) = " 12pt.": kky$(21) = "Roman "
altpitch$ = "Pitch1"

IF nofile% = 1 THEN mpath% = 0: GOTO inputusersettings
'                                         input user-definable data settings
path0$ = ".;" + ENVIRON$("PATH")
DO
 mpath% = INSTR(path0$, ";")
 IF mpath% = 0 THEN
       path$ = path0$
       path0$ = ""
 ELSE
       path$ = LEFT$(path0$, mpath% - 1)
       path0$ = MID$(path0$, mpath% + 1)
 END IF
 IF path$ <> "" AND RIGHT$(path$, 1) <> "\" THEN path$ = path$ + "\"
 ifile$ = path$ + "qfig_set.dat"
 OPEN ifile$ FOR RANDOM AS #1
 IF LOF(1) = 0 THEN
       CLOSE #1
       KILL ifile$
 ELSE
       mpath% = -1
       EXIT DO
 END IF
LOOP UNTIL mpath% = 0

inputusersettings:
IF mpath% = 0 THEN
'                                                                    default
 arrowhead = 8!               'arrow = arrowhead + darrowhead * obj%(n%, 4)
 darrowhead = 1.5
 arrowdirect = pi / 9!                'arrow is directed to \pm arrowdirect
 arcarrowd = pi / 30!            'correction of inward direction on the arc
 dpattern$(1) = "6pt, 3pt"                           'dashpattern on PiCTeX
 dpattern$(2) = "10pt, 3pt, 2pt, 3pt"
 dpattern$(3) = "10pt, 3pt, 2pt, 3pt, 2pt, 3pt"
 filler%(0) = 0                                    'filler color on N-Graph
 filler%(1) = 2
 filler%(2) = 6
 filler%(3) = 1
 eepicpattern$(1) = "\dottedline{3}"
 eepicpattern$(2) = "\dashline[50]{10}"
 eepicpattern$(3) = "\dashline[50]{10}[2]"
 tpicshade$(1) = "[0.1]"
 tpicshade$(2) = "[0.4]"
 tpicshade$(3) = "[0.7]"
 hscroll% = 200
 vscroll% = 120
 interpolcurve% = 10
 interpolang% = 36    '5 degree
ELSE
 CLOSE #1
 OPEN ifile$ FOR INPUT AS #1
 arrowhead = VAL(Usetdata$)
 darrowhead = VAL(Usetdata$)
 arrowdirect = pi / VAL(Usetdata$)
 arcarrowd = pi / VAL(Usetdata$)
 dpattern$(1) = Usetdata$
 dpattern$(2) = Usetdata$
 dpattern$(3) = Usetdata$
 filler%(0) = VAL(Usetdata$)
 filler%(1) = VAL(Usetdata$)
 filler%(2) = VAL(Usetdata$)
 filler%(3) = VAL(Usetdata$)
 eepicpattern$(1) = Usetdata$
 eepicpattern$(2) = Usetdata$
 eepicpattern$(3) = Usetdata$
 tpicshade$(1) = Usetdata$
 tpicshade$(2) = Usetdata$
 tpicshade$(3) = Usetdata$
 hscroll% = VAL(Usetdata$)
 IF hscroll% <= 0 OR hscroll% > 200 THEN hscroll% = 200
 vscroll% = VAL(Usetdata$)
 IF vscroll% <= 0 OR vscroll% > 120 THEN vscroll% = 120
 interpolcurve% = VAL(Usetdata$)
 interpolang% = 180! / CSNG(VAL(Usetdata$))

 chartex$(0, 0) = Usetdata$ + " "
 chartex$(0, 1) = Usetdata$ + " "
 chartex$(0, 2) = Usetdata$ + " "
 chartex$(0, 3) = Usetdata$ + " "
 chartex$(1, 0) = Usetdata$ + " "
 chartex$(1, 1) = Usetdata$ + " "
 chartex$(1, 2) = Usetdata$ + " "
 chartex$(1, 3) = Usetdata$ + " "

 CLOSE #1
END IF
'
tpicshade% = 1
'
iomessages$(1) = "Load  picture data from file [.qfg]"
iomessages$(2) = "Merge picture data from file [.qfg]"
iomessages$(3) = "Save  this picture into file [.qfg] only"
iomessages$(4) = "Save picture in [.qfg] & 'PiCTeX'   code in [.tex]"
iomessages$(5) = "Save picture in [.qfg] & 'eepic'    code in [.tex]"
iomessages$(6) = "Save picture in [.qfg] & 'eepicemu' code in [.tex]"
iomessages$(7) = "Quit (Exit Program)"
'
END SUB

SUB SetInst (ninstr%)
'                       set instruction of left/right buttons (space/return)
COLOR 7
IF ninstr% > 0 THEN SWAP Ins(0), Ins(ninstr%)
LOCATE line3%, 4: PRINT Ins(0).L; : LOCATE line3%, 42: PRINT Ins(0).R;
LOCATE line3%, 70: PRINT Ins(0).D;
'
END SUB

FUNCTION Usetdata$
'                                               get a line and strip comment
DO
LINE INPUT #1, a$
a$ = LEFT$(a$, INSTR(a$, ";") - 1)
LOOP UNTIL a$ <> ""
i% = INSTR(a$, CHR$(9))
DO UNTIL i% = 0
 a$ = LEFT$(a$, i% - 1)
 i% = INSTR(a$, CHR$(9))
LOOP
Usetdata$ = LTRIM$(RTRIM$(a$))
'
END FUNCTION