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!AWDec94/Goodies/DrawBasic/!DrawBasic/Resources/Attributes
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Archimedes World » AW-1994-12-Disc1.adf » Disk1Dec94 |
| Filename: | !AWDec94/Goodies/DrawBasic/!DrawBasic/Resources/Attributes |
| Read OK: | ✔ |
| File size: | 394F bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- Archimedes archive » Archimedes World » AW-1994-12-Disc1.adf » Disk1Dec94 » !AWDec94/Goodies/DrawBasic/!DrawBasic/Resources/Attributes
- Archimedes archive » Archimedes World » AW-1995-01-Disc1.adf » Disk1Jan95 » !AWJan95/Goodies/DrawBasic/!DrawBasic/Resources/Attributes
File contents
1REM >DrawBasic:Resources.Attributes
2REM =======================================================
3REM
4REM copyright Joe Taylor June 1994
5REM
6REM N.B. For ERROR THROWBACK to work The first line above
7REM MUST have the correct pathname of this file.
8REM If you move the location of the file remember to
9REM alter this pathname.
10REM
11REM =======================================================
12
13REM ******************
14REM
15REM 5 PATH ATTRIBUTES
16REM
17REM ******************
18
19REM ==============
20REM 5.1 Line Width
21REM ==============
22
23DEF FNLineWidth=!(HIMEM+232)
24
25DEF PROCWidth(width)
26!(HIMEM+232)=INT(width*640)
27ENDPROC
28
29DEF PROCWidth@(Draw_Path%,width)
30 REM -------------------------------
31 REM
32 REM Sets the line width
33 REM
34 REM N.B. Thickness is specified in
35 REM printers points
36 REM
37 REM ------------------------------
38 LOCAL _Path%
39 _Path%=!Draw_Path%
40 IF _Path%<>0 THEN _Path%!32=INT(width*640)
41ENDPROC
42
43REM ===============
44REM 5.2 Line Colour
45REM ===============
46
47DEF FNLineColour=!(HIMEM+224)
48
49DEF PROCColour(col%)
50IF ABScol%<16 THEN col%=FNDesktopColour(ABScol%)
51!(HIMEM+224)=col%
52ENDPROC
53
54DEF PROCColour@(Draw_Path%,colour%)
55 REM --------------------
56 REM
57 REM Sets the line colour
58 REM
59 REM --------------------
60 LOCAL _Path%
61 _Path%=!Draw_Path%
62 IF _Path%<>0 THEN
63 IF ABS(colour%)<16 THEN _Path%!28=FNDesktopColour(ABS(colour%)MOD16) ELSE _Path%!28=colour%
64 ENDIF
65ENDPROC
66
67REM ===============
68REM 5.3 Fill Colour
69REM ===============
70
71DEF FNFillColour=!(HIMEM+228)
72
73DEF PROCFill(col%)
74IF ABScol%<16 THEN col%=FNDesktopColour(ABScol%)
75!(HIMEM+228)=col%
76ENDPROC
77
78DEF PROCFill@(Draw_Path%,colour%)
79 REM ---------------------
80 REM
81 REM Sets the fill colour
82 REM
83 REM ---------------------
84 LOCAL _Path%
85 _Path%=!Draw_Path%
86 IF _Path%<>0 THEN
87 IF ABS(colour%)<16 THEN _Path%!24=FNDesktopColour(ABS(colour%)MOD16) ELSE _Path%!24=colour%
88 ENDIF
89ENDPROC
90
91REM ==================
92REM 5.4 Colour mixing
93REM ==================
94
95DEF FNShade(Red%,Green%,Blue%)=(Red%<<8)+(Green%<<16)+(Blue%<<24)
96
97DEF FNShadePC(Red,Green,Blue)
98LOCAL _R%,_B%,_G%
99_R%=INT(Red*255/100+.5) : _G%=INT(Green*255/100+.5): _B%=INT(Blue*255/100+.5)
100=FNShade(_R%,_G%,_B%)
101
102DEF FNShadeCMYK(Cyan,Magenta,Yellow,Key)
103LOCAL _Red%,_Green%,_Blue%,_C%,_M%,_Y%,_K%
104_C%=INT(Cyan*65536/100+.5) : _M%=INT(Magenta*65536/100+.5)
105_Y%=INT(Yellow*65536/100+.5): _K%=INT(Key*65536/100+.5)
106SYS "ColourTrans_ConvertCMYKToRGB",_C%,_M%,_Y%,_K% TO _Red%,_Green%,_Blue%
107IF (_Red%>>8)=256 THEN _Red%-=1
108IF (_Green%>>8)=256 THEN _Green%-=1
109IF (_Blue%>>8)=256 THEN _Blue%-=1
110=FNShade(_Red%>>8,_Green%>>8,_Blue%>>8)
111
112DEF FNShadeHSV(Hue,Saturation,Value)
113LOCAL _Red%,_Green%,_Blue%,_H%,_S%,_V%
114_H%=Hue<<16
115_S%=INT(Saturation*65536/100+.5)
116_V%=INT(Value*65536/100+.5)
117SYS "ColourTrans_ConvertHSVToRGB",_H%,_S%,_V% TO _Red%,_Green%,_Blue%
118IF (_Red%>>8)=256 THEN _Red%-=1
119IF (_Green%>>8)=256 THEN _Green%-=1
120IF (_Blue%>>8)=256 THEN _Blue%-=1
121=FNShade(_Red%>>8,_Green%>>8,_Blue%>>8)
122
123DEF FNWhite=FNShade(255,255,255)
124DEF FNBlack=%11111111
125DEF FNBlue=FNShade(0,68,153)
126DEF FNYellow=FNShade(238,238,0)
127DEF FNLightGreen=FNShade(0,204,0)
128DEF FNRed=FNShade(221,0,0)
129DEF FNCream=FNShade(238,238,187)
130DEF FNGreen=FNShade(85,136,0)
131DEF FNOrange=FNShade(255,187,0)
132DEF FNLightBlue=FNShade(0,187,255)
133
134DEF FNGrey(scale)
135LOCAL _intensity% : _intensity%=INT(scale*255/7+.5)
136=FNShade(_intensity%,_intensity%,_intensity%)
137
138DEF FNDesktopColour(colour%)
139IF ABScolour%<256 THEN colour%=(ABScolour%) MOD 16
140 CASE colour% OF
141 WHEN 0 : colour%=FNShade(255,255,255)
142 WHEN 1 : colour%=FNShade(221,221,221)
143 WHEN 2 : colour%=FNShade(187,187,187)
144 WHEN 3 : colour%=FNShade(153,153,153)
145 WHEN 4 : colour%=FNShade(119,119,119)
146 WHEN 5 : colour%=FNShade(85,85,85)
147 WHEN 6 : colour%=FNShade(51,51,51)
148 WHEN 7 : colour%=%11111111
149 WHEN 8 : colour%=FNShade(0,68,153)
150 WHEN 9 : colour%=FNShade(238,238,0)
151 WHEN 10 : colour%=FNShade(0,204,0)
152 WHEN 11 : colour%=FNShade(221,0,0)
153 WHEN 12 : colour%=FNShade(238,238,187)
154 WHEN 13 : colour%=FNShade(85,136,0)
155 WHEN 14 : colour%=FNShade(255,187,0)
156 WHEN 15 : colour%=FNShade(0,187,255)
157 ENDCASE
158=colour%
159
160REM ==================
161REM 5.5 Winding Rules
162REM ==================
163
164DEF FNStyle=!(HIMEM+236)
165
166DEF FNWindingRule=!(HIMEM+236)
167
168DEF PROCWindingRule(winding_rule%)
169IF winding_rule%=0 THEN
170!(HIMEM+236)=(FNStyle AND NOT%1000000) EOR %1000000
171ELSE
172!(HIMEM+236)=(FNStyle AND NOT%1000000) EOR %0000000
173ENDIF
174ENDPROC
175
176DEF PROCWindingRule@(Draw_Path%,winding_rule%)
177 REM -----------------------
178 REM
179 REM Even Odd winding Rule
180 REM
181 REM ----------------------
182 LOCAL _Path%
183 _Path%=!Draw_Path%
184 IF _Path%<>0 THEN
185 IF winding_rule%=0 THEN
186 Path%!36=(FNStyle AND NOT%1000000) EOR %1000000
187 ELSE
188 Path%!36=(FNStyle AND NOT%1000000) EOR %0000000
189 ENDIF
190 ENDIF
191ENDPROC
192
193REM =================
194REM 5.6 Dashed Lines
195REM =================
196
197DEF FNDash=!(HIMEM+76)
198
199DEF PROCDashOff
200!(HIMEM+76)=0
201ENDPROC
202
203DEF PROCDash(pattern%)
204!(HIMEM+76)=pattern%
205ENDPROC
206
207DEF PROCDash@(Draw_Path%,pattern%)
208 REM -----------------------------
209 REM
210 REM Dash Pattern
211 REM
212 REM - - - - - - - -
213 REM
214 REM pattern!0=n
215 REM pattern!4=length into
216 REM pattern!8=length of 1st stroke
217 REM
218 REM etc.
219 REM
220 REM "length" in points
221 REM
222 REM -----------------------------
223 LOCAL _Path%,_i%,_n%,_max%
224 _Path%=!Draw_Path%
225 IF _Path%<>0 THEN
226 _n%=pattern%!4
227 _Path%!4+=4*(_n%+2)
228 _Path%!36=((_Path%!36) AND NOT(1<<7)) EOR (1<<7)
229 _max%=!(HIMEM+4)
230 PROCMoveMemory(_Path%+40,_n%+2)
231 _i%=Draw_Path%-4
232 WHILE _i%>=_max% : !_i%+=4*(_n%+2) : _i%-=4 : ENDWHILE
233 FOR _i%=0 TO _n%+1
234 _Path%!(40+4*_i%)=(pattern%!(4*_i%))*640
235 NEXT
236 _Path%!44=_n%
237 ENDIF
238 ENDPROC
239
240DEF FNDashPattern(NumberOfElements%)
241LOCAL _pattern%
242IF NumberOfElements%<=0 THEN ERROR 0, "Number of elements in dash pattern negative!"
243DIM _pattern% 8+4*NumberOfElements%
244FOR _i%=0 TO 4+4*NumberOfElements% STEP 4
245 _pattern%!_i%=0
246 NEXT
247 _pattern%!4=NumberOfElements%
248=_pattern%
249
250DEF PROCDashLength(pattern%,item%,length%)
251IF item%<0 OR item%>(pattern%!4) THEN ERROR 0, "No such item in Dash pattern!"
252IF item%=0 THEN !pattern%=length% ELSE pattern%!(4+4*item%)=length%
253ENDPROC
254
255DEF FNEquiDash(length%)
256 REM -----------------------------
257 REM
258 REM Equidistant Dash Pattern
259 REM
260 REM - - - - - - - - - -
261 REM
262 REM Arguments in OS units
263 REM
264 REM -----------------------------
265LOCAL _pattern : DIM _pattern 12
266!_pattern=0 : _pattern!4=1 : _pattern!8=length%
267=_pattern
268
269DEF FNDotDash(length%)
270 REM -----------------------------
271 REM
272 REM Non-equidistant Dash Pattern
273 REM
274 REM -- - -- - -- - -- - -- -
275 REM
276 REM Arguments in OS units
277 REM
278 REM -----------------------------
279 LOCAL _pattern : DIM _pattern 6*4
280 !_pattern=0 : _pattern!4=4
281 _pattern!8=2*length% : _pattern!12=length%
282 _pattern!16=length% : _pattern!20=length%
283 =_pattern
284
285DEF FNNonEquiDash(stroke_length%,move_length%)
286 REM -----------------------------
287 REM
288 REM Non-equidistant Dash Pattern
289 REM
290 REM -- -- -- -- -- -- -- -- --
291 REM
292 REM Arguments in inches
293 REM
294 REM -----------------------------
295 LOCAL _pattern : DIM _pattern 4*4
296 !_pattern=0 : _pattern!4=2
297 _pattern!8=stroke_length% : _pattern!12=move_length%
298 =_pattern
299
300
301REM ==========
302REM 5.7 Joins
303REM ==========
304
305DEF PROCJoins(index%)
306CASE index% OF
307WHEN 0 : PROCRoundJoins
308WHEN 1 : PROCBevelJoins
309OTHERWISE
310 PROCMitreJoins
311ENDCASE
312ENDPROC
313
314DEF PROCJoins@(Draw_Path%,index%)
315CASE index% OF
316WHEN 0 : PROCRoundJoins@(Draw_Path%)
317WHEN 1 : PROCBevelJoins@(Draw_Path%)
318OTHERWISE
319 PROCMitreJoins@(Draw_Path%)
320ENDCASE
321ENDPROC
322
323DEF PROCRoundJoins
324 REM ------------
325 REM
326 REM Round Joins
327 REM
328 REM ------------
329 !(HIMEM+236)=(FNStyle AND NOT%11) EOR %01
330 ENDPROC
331
332DEF PROCRoundJoins@(Draw_Path%)
333 REM ------------
334 REM
335 REM Round Joins
336 REM
337 REM ------------
338 LOCAL _Path%
339 _Path%=!Draw_Path%
340 IF _Path%<>0 THEN _Path%!36=((_Path%!36) AND NOT%11) EOR %01
341 ENDPROC
342
343DEF PROCBevelJoins
344 REM -------------------------
345 REM
346 REM Bevel Joins
347 REM
348 REM N.B. This is the default.
349 REM
350 REM -------------------------
351 !(HIMEM+236)=(FNStyle AND NOT%11) EOR %10
352 ENDPROC
353
354DEF PROCBevelJoins@(Draw_Path%)
355 REM -------------------------
356 REM
357 REM Bevel Joins
358 REM
359 REM N.B. This is the default.
360 REM
361 REM -------------------------
362 LOCAL _Path% : _Path%=!Draw_Path%
363 IF _Path%<>0 THEN _Path%!36=((_Path%!36) AND NOT%11) EOR %10
364 ENDPROC
365
366DEF PROCMitreJoins
367 REM ------------
368 REM
369 REM Mitre Joins
370 REM
371 REM ------------
372 !(HIMEM+236)=(FNStyle AND NOT%11) EOR %00
373 ENDPROC
374
375DEF PROCMitreJoins@(Draw_Path%)
376 REM ------------
377 REM
378 REM Mitre Joins
379 REM
380 REM ------------
381 LOCAL _Path% : _Path%=!Draw_Path%
382 IF _Path%<>0 THEN _Path%!36=((_Path%!36) AND NOT%11) EOR %00
383 ENDPROC
384
385REM ==============
386REM 5.8 Line Caps
387REM ==============
388
389DEF PROCButtCaps(index%)
390 REM ---------------------
391 REM
392 REM Butt Caps index= 1 forward only
393 REM =-1 back only
394 REM = 0 both
395 REM N.B. This the default
396 REM
397 REM ---------------------
398 IF index%>=0 !(HIMEM+236)=(FNStyle AND NOT%1100) EOR %0000
399 IF index%<=0 !(HIMEM+236)=(FNStyle AND NOT%110000) EOR %000000
400 ENDPROC
401
402DEF PROCButtCaps@(Draw_Path%,index%)
403 REM ---------------------
404 REM
405 REM Butt End Caps
406 REM
407 REM N.B. This the default
408 REM
409 REM ---------------------
410 LOCAL _Path% : _Path%=!Draw_Path%
411 IF _Path%<>0 THEN
412 IF index%>=0 _Path%!36=((_Path%!36) AND NOT%1100) EOR %0000
413 IF index%<=0 _Path%!36=((_Path%!36) AND NOT%110000) EOR %000000
414 ENDIF
415 ENDPROC
416
417DEF PROCRoundCaps(index%)
418 REM -----------------
419 REM
420 REM Round End Caps
421 REM
422 REM -----------------
423 IF index%>=0 !(HIMEM+236)=(FNStyle AND NOT%1100) EOR %0100
424 IF index%<=0 !(HIMEM+236)=(FNStyle AND NOT%110000) EOR %010000
425 ENDPROC
426
427DEF PROCRoundCaps@(Draw_Path%,index%)
428 REM -----------------
429 REM
430 REM Round End Caps
431 REM
432 REM -----------------
433 LOCAL _Path% : _Path%=!Draw_Path%
434 IF _Path%<>0 THEN
435 IF index%>=0 _Path%!36=((_Path%!36) AND NOT%1100) EOR %0100
436 IF index%<=0 _Path%!36=((_Path%!36) AND NOT%110000) EOR %010000
437 ENDIF
438 ENDPROC
439
440DEF PROCSquareCaps(index%)
441 REM -----------------
442 REM
443 REM Square End Caps
444 REM
445 REM -----------------
446 IF index%>=0 !(HIMEM+236)=(FNStyle AND NOT%1100) EOR %1000
447 IF index%<=0 !(HIMEM+236)=(FNStyle AND NOT%110000) EOR %100000
448 ENDPROC
449
450DEF PROCSquareCaps@(Draw_Path%,index%)
451 REM -----------------
452 REM
453 REM Square End Caps
454 REM
455 REM -----------------
456 LOCAL _Path% : _Path%=!Draw_Path%
457 LOCAL _Path% : _Path%=!Draw_Path%
458 IF _Path%<>0 THEN
459 IF index%>=0 _Path%!36=((_Path%!36) AND NOT%1100) EOR %1000
460 IF index%<=0 _Path%!36=((_Path%!36) AND NOT%110000) EOR %100000
461 ENDIF
462 ENDPROC
463
464DEF PROCTriangleCaps(index%,width,height)
465IF index%>=0 THEN
466 !(HIMEM+236)=(FNStyle AND NOT%1100) EOR %1100
467 !(HIMEM+236)=(FNStyle AND NOT(&FF<<16)) EOR (INT(width*16))<<16
468 !(HIMEM+236)=(FNStyle AND NOT(&FF<<24)) EOR (INT(height*16))<<24
469 ENDIF
470IF index%<=0 THEN
471 !(HIMEM+236)=(FNStyle AND NOT%110000) EOR %110000
472 !(HIMEM+236)=(FNStyle AND NOT(&FF<<16)) EOR (INT(width*16))<<16
473 !(HIMEM+236)=(FNStyle AND NOT(&FF<<24)) EOR (INT(height*16))<<24
474ENDIF
475 ENDPROC
476
477DEF PROCTriangleCaps@(Draw_Path%,index%,width,height)
478 REM --------------------------------------
479 REM
480 REM Draws triangular caps.
481 REM
482 REM N.B. "width" and "pointbackward" are
483 REM measured in terms of line width.
484 REM
485 REM
486 REM /|
487 REM < |===
488 REM \|
489 REM
490 REM
491 REM
492 REM E.g. width=3 means that the cap will
493 REM be 3 line widths on either side
494 REM
495 REM ---------------------------------------
496 LOCAL _Path% : _Path%=!Draw_Path%
497 IF _Path%<>0 THEN
498 IF index%<=0 THEN
499 _Path%!36=((_Path%!36) AND NOT%110000) EOR %110000
500 _Path%!36=((_Path%!36) AND NOT(&FF<<16)) EOR (INT(width*16))<<16
501 _Path%!36=((_Path%!36) AND NOT(&FF<<24)) EOR (INT(height*16))<<24
502 ENDIF
503 IF index%>=0 THEN
504 _Path%!36=((_Path%!36) AND NOT%1100) EOR %1100
505 _Path%!36=((_Path%!36) AND NOT(&FF<<16)) EOR (INT(width*16))<<16
506 _Path%!36=((_Path%!36) AND NOT(&FF<<24)) EOR (INT(height*16))<<24
507 ENDIF
508 ENDIF
509 ENDPROC
510
511
512REM ==================
513REM 3.6 Drawing Paths
514REM ==================
515
516DEF PROCDrawPath(path%)
517 PROCDraw_RenderPath(!path%,FNDrawTrans)
518 ENDPROC
519
520DEF PROCDraw_RenderPath(path%,transform)
521IF path%<>0 THEN
522LOCAL _Path%,_Dash%,_Thickness%,_Style%,_Flatness%,_Fill_Style%,_length%,_x%,_y%,_X%,_Y%,_col%
523SYS "Hourglass_On"
524_Flatness%=0
525REM Store the path object's bounding box
526REM ====================================
527 _x%=path%!8 : _y%=path%!12 : _X%=path%!16 : _Y%=path%!20
528REM The style of drawing
529REM ====================
530 _Thickness%=path%!32
531 _Style%=path%!36
532 _Path%=path%+40
533 REM Dash Pattern (If present)
534 REM =========================
535 IF (_Style% AND (1<<7)) = 0 THEN
536 _Dash%=0
537 ELSE
538 _Dash%=_Path%
539 _Path%+=4*(_Dash%!4)+8
540 ENDIF
541 REM Cap and Join
542 REM ------------
543 path%?8 = _Style% AND %11 : REM Join style
544 path%?9 =(_Style% AND %1100)>>2 : REM End caps
545 path%?10=(_Style% AND %110000)>>4 : REM Start caps
546 path%?11=0
547 REM Mitre join limits
548 REM -----------------
549 path%!12=10<<16 : REM Bevelling when < 11 degrees
550 REM Triangular caps
551 REM ---------------
552 REM Cap width
553 REM *********
554 _length%=path%?38 : REM # of 16'ths of line width
555 path%?16=(_length%MOD16)<<4 : REM End caps
556 path%?17=_length%DIV16
557 path%?20=(_length%MOD16)<<4 : REM Start caps
558 path%?21=_length%DIV16
559 REM Cap length
560 REM **********
561 _length%=path%?39 : REM # of 16'ths of line width
562 path%?18=(_length%MOD16)<<4 : REM End caps
563 path%?19=_length%DIV16
564 path%?22=(_length%MOD16)<<4 : REM Start caps
565 path%?23=_length%DIV16
566REM Fill the object (if required)
567REM ============================
568REM
569REM N.B. Fill colour is value of path%!24
570REM Do NOT fill if this value is -1
571REM ECF patterns are used to give best approximation
572REM to colour
573
574 IF (_Style% AND (1<<6))=0 THEN _Fill_Style%=&30 ELSE _Fill_Style%=&32
575 CASE path%!24 OF
576 WHEN -1
577 OTHERWISE
578 _col%=path%!24
579 IF !(HIMEM+20)=0 AND _col%=0 THEN _col%=(255<<8)+(255<<16)+(255<<24)
580 SYS "ColourTrans_SetGCOL",_col%,,,1<<8
581 SYS "Draw_Fill",_Path%,_Fill_Style%,transform,_Flatness%
582 ENDCASE
583REM Draw the boundary
584REM =================
585REM
586REM Set the outline colour and draw the path.
587REM N.B. 1) Outline colour is stored at path%!28
588REM 2) Cap and join at path%+8
589 _col%=path%!28
590 IF !(HIMEM+20)=0 AND _col%=0 THEN _col%=(255<<8)+(255<<16)+(255<<24)
591 SYS "ColourTrans_SetGCOL",_col%
592 SYS "Draw_Stroke",_Path%,,transform,_Flatness%,_Thickness%,path%+8,_Dash%
593REM Restore the path object's bounding box
594REM ======================================
595 path%!8=_x% : path%!12=_y% : path%!16=_X% : path%!20=_Y%
596 SYS "Hourglass_Off"
597 ENDIF
598ENDPROC
599
%� >DrawBasic:Resources.Attributes
=� =======================================================
�
$� copyright Joe Taylor June 1994
�
;� N.B. For ERROR THROWBACK to work The first line above
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s"_S%=�(Saturation*65536/100+.5)
t _V%=�(Value*65536/100+.5)
uGș "ColourTrans_ConvertHSVToRGB",_H%,_S%,_V% � _Red%,_Green%,_Blue%
v � (_Red%>>8)=256 � _Red%-=1
w#� (_Green%>>8)=256 � _Green%-=1
x!� (_Blue%>>8)=256 � _Blue%-=1
y*=�Shade(_Red%>>8,_Green%>>8,_Blue%>>8)
z
{ � �White=�Shade(255,255,255)
|� �Black=%11111111
} � �Blue=�Shade(0,68,153)
~ � �Yellow=�Shade(238,238,0)
!� �LightGreen=�Shade(0,204,0)
�� �Red=�Shade(221,0,0)
� � �Cream=�Shade(238,238,187)
� � �Green=�Shade(85,136,0)
� � �Orange=�Shade(255,187,0)
�"� �LightBlue=�Shade(0,187,255)
�
�� �Grey(scale)
�1� _intensity% : _intensity%=�(scale*255/7+.5)
�0=�Shade(_intensity%,_intensity%,_intensity%)
�
� � �DesktopColour(colour%)
�,� �colour%<256 � colour%=(�colour%) � 16
� Ȏ colour% �
�' � 0 : colour%=�Shade(255,255,255)
�' � 1 : colour%=�Shade(221,221,221)
�' � 2 : colour%=�Shade(187,187,187)
�' � 3 : colour%=�Shade(153,153,153)
�' � 4 : colour%=�Shade(119,119,119)
�$ � 5 : colour%=�Shade(85,85,85)
�$ � 6 : colour%=�Shade(51,51,51)
� � 7 : colour%=%11111111
�$ � 8 : colour%=�Shade(0,68,153)
�% � 9 : colour%=�Shade(238,238,0)
�$ � 10 : colour%=�Shade(0,204,0)
�$ � 11 : colour%=�Shade(221,0,0)
�( � 12 : colour%=�Shade(238,238,187)
�% � 13 : colour%=�Shade(85,136,0)
�& � 14 : colour%=�Shade(255,187,0)
�& � 15 : colour%=�Shade(0,187,255)
� �
� =colour%
�
�� ==================
�� 5.5 Winding Rules
�� ==================
�
�� �Style=!(�+236)
�
�� �WindingRule=!(�+236)
�
�!� �WindingRule(winding_rule%)
�� winding_rule%=0 �
�,!(�+236)=(�Style � �%1000000) � %1000000
��
�,!(�+236)=(�Style � �%1000000) � %0000000
��
��
�
�-� �WindingRule@(Draw_Path%,winding_rule%)
� � -----------------------
� �
� � Even Odd winding Rule
� �
� � ----------------------
�
� _Path%
� _Path%=!Draw_Path%
� � _Path%<>0 �
� � winding_rule%=0 �
�0 Path%!36=(�Style � �%1000000) � %1000000
� �
�0 Path%!36=(�Style � �%1000000) � %0000000
� �
� �
��
�
�� =================
�� 5.6 Dashed Lines
�� =================
�
�� �Dash=!(�+76)
�
�� �DashOff
�
!(�+76)=0
��
�
�� �Dash(pattern%)
�!(�+76)=pattern%
��
�
�!� �Dash@(Draw_Path%,pattern%)
�$ � -----------------------------
� �
� � Dash Pattern
� �
� � - - - - - - - -
� �
� � pattern!0=n
� � pattern!4=length into
�& � pattern!8=length of 1st stroke
� �
� � etc.
� �
� � "length" in points
� �
�$ � -----------------------------
� � _Path%,_i%,_n%,_max%
� _Path%=!Draw_Path%
� � _Path%<>0 �
� _n%=pattern%!4
� _Path%!4+=4*(_n%+2)
�0 _Path%!36=((_Path%!36) � �(1<<7)) � (1<<7)
� _max%=!(�+4)
�" �MoveMemory(_Path%+40,_n%+2)
� _i%=Draw_Path%-4
�2 ȕ _i%>=_max% : !_i%+=4*(_n%+2) : _i%-=4 : �
� � _i%=0 � _n%+1
�/ _Path%!(40+4*_i%)=(pattern%!(4*_i%))*640
� �
� _Path%!44=_n%
� �
� �
�
�%� �DashPattern(NumberOfElements%)
�� _pattern%
�P� NumberOfElements%<=0 � � 0, "Number of elements in dash pattern negative!"
�%� _pattern% 8+4*NumberOfElements%
�'� _i%=0 � 4+4*NumberOfElements% � 4
� _pattern%!_i%=0
� �
�" _pattern%!4=NumberOfElements%
�=_pattern%
�
�)� �DashLength(pattern%,item%,length%)
�I� item%<0 � item%>(pattern%!4) � � 0, "No such item in Dash pattern!"
�@� item%=0 � !pattern%=length% � pattern%!(4+4*item%)=length%
��
�
�� �EquiDash(length%)
$ � -----------------------------
�
� Equidistant Dash Pattern
�
� - - - - - - - - - -
�
� Arguments in OS units
�
$ � -----------------------------
� _pattern : � _pattern 12
3!_pattern=0 : _pattern!4=1 : _pattern!8=length%
=_pattern
� �DotDash(length%)
$ � -----------------------------
�
# � Non-equidistant Dash Pattern
�
� -- - -- - -- - -- - -- -
�
� Arguments in OS units
�
$ � -----------------------------
� _pattern : � _pattern 6*4
!_pattern=0 : _pattern!4=4
/ _pattern!8=2*length% : _pattern!12=length%
/ _pattern!16=length% : _pattern!20=length%
=_pattern
/� �NonEquiDash(stroke_length%,move_length%)
$ � -----------------------------
�
# � Non-equidistant Dash Pattern
! �
"" � -- -- -- -- -- -- -- -- --
# �
$ � Arguments in inches
% �
&$ � -----------------------------
' � _pattern : � _pattern 4*4
( !_pattern=0 : _pattern!4=2
)9 _pattern!8=stroke_length% : _pattern!12=move_length%
* =_pattern
+
,
-� ==========
.� 5.7 Joins
/� ==========
0
1� �Joins(index%)
2Ȏ index% �
3� 0 : �RoundJoins
4� 1 : �BevelJoins
5
6 �MitreJoins
7�
8�
9
: � �Joins@(Draw_Path%,index%)
;Ȏ index% �
<"� 0 : �RoundJoins@(Draw_Path%)
="� 1 : �BevelJoins@(Draw_Path%)
>
? �MitreJoins@(Draw_Path%)
@�
A�
B
C� �RoundJoins
D � ------------
E �
F � Round Joins
G �
H � ------------
I$ !(�+236)=(�Style � �%11) � %01
J �
K
L � �RoundJoins@(Draw_Path%)
M � ------------
N �
O � Round Joins
P �
Q � ------------
R
� _Path%
S _Path%=!Draw_Path%
T7 � _Path%<>0 � _Path%!36=((_Path%!36) � �%11) � %01
U �
V
W� �BevelJoins
X � -------------------------
Y �
Z � Bevel Joins
[ �
\ � N.B. This is the default.
] �
^ � -------------------------
_# !(�+236)=(�Style � �%11) � %10
` �
a
b � �BevelJoins@(Draw_Path%)
c � -------------------------
d �
e � Bevel Joins
f �
g � N.B. This is the default.
h �
i � -------------------------
j" � _Path% : _Path%=!Draw_Path%
k7 � _Path%<>0 � _Path%!36=((_Path%!36) � �%11) � %10
l �
m
n� �MitreJoins
o � ------------
p �
q � Mitre Joins
r �
s � ------------
t# !(�+236)=(�Style � �%11) � %00
u �
v
w � �MitreJoins@(Draw_Path%)
x � ------------
y �
z � Mitre Joins
{ �
| � ------------
}" � _Path% : _Path%=!Draw_Path%
~7 � _Path%<>0 � _Path%!36=((_Path%!36) � �%11) � %00
�
�
�� ==============
�� 5.8 Line Caps
�� ==============
�
�� �ButtCaps(index%)
� � ---------------------
� �
�& � Butt Caps index= 1 forward only
�# � =-1 back only
� � = 0 both
� � N.B. This the default
� �
� � ---------------------
�3 � index%>=0 !(�+236)=(�Style � �%1100) � %0000
�7 � index%<=0 !(�+236)=(�Style � �%110000) � %000000
� �
�
�#� �ButtCaps@(Draw_Path%,index%)
� � ---------------------
� �
� � Butt End Caps
� �
� � N.B. This the default
� �
� � ---------------------
�" � _Path% : _Path%=!Draw_Path%
� � _Path%<>0 �
�: � index%>=0 _Path%!36=((_Path%!36) � �%1100) � %0000
�> � index%<=0 _Path%!36=((_Path%!36) � �%110000) � %000000
� �
� �
�
�� �RoundCaps(index%)
� � -----------------
� �
� � Round End Caps
� �
� � -----------------
�4 � index%>=0 !(�+236)=(�Style � �%1100) � %0100
�8 � index%<=0 !(�+236)=(�Style � �%110000) � %010000
� �
�
�$� �RoundCaps@(Draw_Path%,index%)
� � -----------------
� �
� � Round End Caps
� �
� � -----------------
�" � _Path% : _Path%=!Draw_Path%
� � _Path%<>0 �
�: � index%>=0 _Path%!36=((_Path%!36) � �%1100) � %0100
�> � index%<=0 _Path%!36=((_Path%!36) � �%110000) � %010000
� �
� �
�
�� �SquareCaps(index%)
� � -----------------
� �
� � Square End Caps
� �
� � -----------------
�3 � index%>=0 !(�+236)=(�Style � �%1100) � %1000
�7 � index%<=0 !(�+236)=(�Style � �%110000) � %100000
� �
�
�%� �SquareCaps@(Draw_Path%,index%)
� � -----------------
� �
� � Square End Caps
� �
� � -----------------
�" � _Path% : _Path%=!Draw_Path%
�" � _Path% : _Path%=!Draw_Path%
� � _Path%<>0 �
�: � index%>=0 _Path%!36=((_Path%!36) � �%1100) � %1000
�> � index%<=0 _Path%!36=((_Path%!36) � �%110000) � %100000
� �
� �
�
�(� �TriangleCaps(index%,width,height)
�� index%>=0 �
�' !(�+236)=(�Style � �%1100) � %1100
�7 !(�+236)=(�Style � �(&FF<<16)) � (�(width*16))<<16
�8 !(�+236)=(�Style � �(&FF<<24)) � (�(height*16))<<24
� �
�� index%<=0 �
�+ !(�+236)=(�Style � �%110000) � %110000
�7 !(�+236)=(�Style � �(&FF<<16)) � (�(width*16))<<16
�8 !(�+236)=(�Style � �(&FF<<24)) � (�(height*16))<<24
��
� �
�
�4� �TriangleCaps@(Draw_Path%,index%,width,height)
�- � --------------------------------------
� �
� � Draws triangular caps.
� �
�, � N.B. "width" and "pointbackward" are
�- � measured in terms of line width.
� �
� �
� � /|
� � < |===
� � \|
� �
� �
� �
�, � E.g. width=3 means that the cap will
�, � be 3 line widths on either side
� �
�. � ---------------------------------------
�" � _Path% : _Path%=!Draw_Path%
� � _Path%<>0 �
� � index%<=0 �
�2 _Path%!36=((_Path%!36) � �%110000) � %110000
�> _Path%!36=((_Path%!36) � �(&FF<<16)) � (�(width*16))<<16
�? _Path%!36=((_Path%!36) � �(&FF<<24)) � (�(height*16))<<24
� �
� � index%>=0 �
�. _Path%!36=((_Path%!36) � �%1100) � %1100
�> _Path%!36=((_Path%!36) � �(&FF<<16)) � (�(width*16))<<16
�? _Path%!36=((_Path%!36) � �(&FF<<24)) � (�(height*16))<<24
� �
� �
� �
�
�
� ==================
� 3.6 Drawing Paths
� ==================
� �DrawPath(path%)
( �Draw_RenderPath(!path%,�DrawTrans)
�
'� �Draw_RenderPath(path%,transform)
� path%<>0 �
^� _Path%,_Dash%,_Thickness%,_Style%,_Flatness%,_Fill_Style%,_length%,_x%,_y%,_X%,_Y%,_col%
ș "Hourglass_On"
_Flatness%=0
*� Store the path object's bounding box
*� ====================================
@ _x%=path%!8 : _y%=path%!12 : _X%=path%!16 : _Y%=path%!20
� The style of drawing
� ====================
_Thickness%=path%!32
_Style%=path%!36
_Path%=path%+40
# � Dash Pattern (If present)
# � =========================
" � (_Style% � (1<<7)) = 0 �
_Dash%=0
�
_Dash%=_Path%
" _Path%+=4*(_Dash%!4)+8
�
� Cap and Join
� ------------
6 path%?8 = _Style% � %11 : � Join style
4 path%?9 =(_Style% � %1100)>>2 : � End caps
!6 path%?10=(_Style% � %110000)>>4 : � Start caps
" path%?11=0
# � Mitre join limits
$ � -----------------
%A path%!12=10<<16 : � Bevelling when < 11 degrees
& � Triangular caps
' � ---------------
( � Cap width
) � *********
*A _length%=path%?38 : � # of 16'ths of line width
+. path%?16=(_length%�16)<<4 : � End caps
, path%?17=_length%�16
-0 path%?20=(_length%�16)<<4 : � Start caps
. path%?21=_length%�16
/ � Cap length
0 � **********
1A _length%=path%?39 : � # of 16'ths of line width
2. path%?18=(_length%�16)<<4 : � End caps
3 path%?19=_length%�16
40 path%?22=(_length%�16)<<4 : � Start caps
5 path%?23=_length%�16
6#� Fill the object (if required)
7"� ============================
8�
9+� N.B. Fill colour is value of path%!24
:*� Do NOT fill if this value is -1
;;� ECF patterns are used to give best approximation
<� to colour
=
>D � (_Style% � (1<<6))=0 � _Fill_Style%=&30 � _Fill_Style%=&32
? Ȏ path%!24 �
@
� -1
A
B _col%=path%!24
CE � !(�+20)=0 � _col%=0 � _col%=(255<<8)+(255<<16)+(255<<24)
D0 ș "ColourTrans_SetGCOL",_col%,,,1<<8
EB ș "Draw_Fill",_Path%,_Fill_Style%,transform,_Flatness%
F �
G� Draw the boundary
H� =================
I�
J/� Set the outline colour and draw the path.
K2� N.B. 1) Outline colour is stored at path%!28
L%� 2) Cap and join at path%+8
M _col%=path%!28
NB � !(�+20)=0 � _col%=0 � _col%=(255<<8)+(255<<16)+(255<<24)
O& ș "ColourTrans_SetGCOL",_col%
PP ș "Draw_Stroke",_Path%,,transform,_Flatness%,_Thickness%,path%+8,_Dash%
Q,� Restore the path object's bounding box
R,� ======================================
S@ path%!8=_x% : path%!12=_y% : path%!16=_X% : path%!20=_Y%
T ș "Hourglass_Off"
U �
V�
W
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*
00000060 3d 3d 0d 00 03 05 f4 0d 00 04 24 f4 20 63 6f 70 |==........$. cop|
00000070 79 72 69 67 68 74 20 4a 6f 65 20 54 61 79 6c 6f |yright Joe Taylo|
00000080 72 20 4a 75 6e 65 20 31 39 39 34 0d 00 05 05 f4 |r June 1994.....|
00000090 0d 00 06 3b f4 20 4e 2e 42 2e 20 46 6f 72 20 45 |...;. N.B. For E|
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000000f0 6e 61 6d 65 20 6f 66 20 74 68 69 73 20 66 69 6c |name of this fil|
00000100 65 2e 0d 00 08 3b f4 20 20 20 20 20 20 49 66 20 |e....;. If |
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*
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00000320 20 20 20 20 20 70 72 69 6e 74 65 72 73 20 70 6f | printers po|
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00000340 20 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d | ---------------|
00000350 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0d |---------------.|
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00000370 20 5f 50 61 74 68 25 3d 21 44 72 61 77 5f 50 61 | _Path%=!Draw_Pa|
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000003e0 00 2d 15 f4 20 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |.-.. ===========|
000003f0 3d 3d 3d 3d 0d 00 2e 04 0d 00 2f 1a dd 20 a4 4c |====....../.. .L|
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00000430 63 6f 6c 25 3c 31 36 20 8c 20 63 6f 6c 25 3d a4 |col%<16 . col%=.|
00000440 44 65 73 6b 74 6f 70 43 6f 6c 6f 75 72 28 94 63 |DesktopColour(.c|
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00000460 3d 63 6f 6c 25 0d 00 34 05 e1 0d 00 35 04 0d 00 |=col%..4....5...|
00000470 36 22 dd 20 f2 43 6f 6c 6f 75 72 40 28 44 72 61 |6". .Colour@(Dra|
00000480 77 5f 50 61 74 68 25 2c 63 6f 6c 6f 75 72 25 29 |w_Path%,colour%)|
00000490 0d 00 37 1b 20 f4 20 2d 2d 2d 2d 2d 2d 2d 2d 2d |..7. . ---------|
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*
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*
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