![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to term_ps.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc|
Return to term_ps.c CVS log | Up to [cvsweb.bsd.lv] / mandoc |
1.23 ! kristaps 1: /* $Id: term_ps.c,v 1.22 2010/06/30 13:16:25 kristaps Exp $ */
1.1 kristaps 2: /*
1.10 kristaps 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.4 kristaps 21: #include <sys/param.h>
22:
1.2 kristaps 23: #include <assert.h>
1.4 kristaps 24: #include <stdarg.h>
1.17 kristaps 25: #include <stdint.h>
1.2 kristaps 26: #include <stdio.h>
1.1 kristaps 27: #include <stdlib.h>
1.4 kristaps 28: #include <string.h>
1.13 kristaps 29: #include <time.h>
1.1 kristaps 30:
31: #include "out.h"
32: #include "main.h"
33: #include "term.h"
34:
1.21 kristaps 35: /* Convert PostScript point "x" to an AFM unit. */
36: #define PNT2AFM(p, x) \
37: (size_t)((double)(x) * (1000.0 / (double)(p)->engine.ps.scale))
38:
39: /* Convert an AFM unit "x" to a PostScript points */
40: #define AFM2PNT(p, x) \
41: (size_t)((double)(x) / (1000.0 / (double)(p)->engine.ps.scale))
42:
1.13 kristaps 43: struct glyph {
44: int wx; /* WX in AFM */
45: };
46:
47: struct font {
48: const char *name; /* FontName in AFM */
1.15 kristaps 49: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 50: struct glyph gly[MAXCHAR]; /* glyph metrics */
51: };
52:
53: /*
54: * We define, for the time being, three fonts: bold, oblique/italic, and
55: * normal (roman). The following table hard-codes the font metrics for
56: * ASCII, i.e., 32--127.
57: */
58:
1.16 kristaps 59: static const struct font fonts[TERMFONT__MAX] = {
1.22 kristaps 60: { "CharterBT-Roman", {
61: { 278 },
62: { 338 },
63: { 331 },
64: { 745 },
65: { 556 },
66: { 852 },
67: { 704 },
68: { 201 },
69: { 417 },
70: { 417 },
71: { 500 },
72: { 833 },
73: { 278 },
74: { 319 },
75: { 278 },
76: { 481 },
77: { 556 },
78: { 556 },
79: { 556 },
80: { 556 },
81: { 556 },
82: { 556 },
83: { 556 },
84: { 556 },
85: { 556 },
86: { 556 },
87: { 319 },
88: { 319 },
89: { 833 },
90: { 833 },
91: { 833 },
92: { 486 },
93: { 942 },
94: { 639 },
95: { 604 },
96: { 632 },
97: { 693 },
98: { 576 },
99: { 537 },
100: { 694 },
101: { 738 },
102: { 324 },
103: { 444 },
104: { 611 },
105: { 520 },
106: { 866 },
107: { 713 },
108: { 731 },
109: { 558 },
110: { 731 },
111: { 646 },
112: { 556 },
113: { 597 },
114: { 694 },
115: { 618 },
116: { 928 },
117: { 600 },
118: { 586 },
119: { 586 },
120: { 421 },
121: { 481 },
122: { 421 },
123: { 1000 },
124: { 500 },
125: { 201 },
126: { 507 },
127: { 539 },
128: { 446 },
129: { 565 },
130: { 491 },
131: { 321 },
132: { 523 },
133: { 564 },
134: { 280 },
135: { 266 },
136: { 517 },
137: { 282 },
138: { 843 },
139: { 568 },
140: { 539 },
141: { 551 },
142: { 531 },
143: { 382 },
144: { 400 },
145: { 334 },
146: { 569 },
147: { 494 },
148: { 771 },
149: { 503 },
150: { 495 },
151: { 468 },
152: { 486 },
153: { 500 },
154: { 486 },
155: { 833 },
1.13 kristaps 156: } },
1.22 kristaps 157: { "CharterBT-Bold", {
158: { 291 },
159: { 340 },
160: { 339 },
161: { 736 },
162: { 581 },
163: { 888 },
164: { 741 },
165: { 255 },
166: { 428 },
167: { 428 },
168: { 500 },
169: { 833 },
170: { 289 },
171: { 326 },
172: { 289 },
173: { 491 },
174: { 581 },
175: { 581 },
176: { 581 },
177: { 581 },
178: { 581 },
179: { 581 },
180: { 581 },
181: { 581 },
182: { 581 },
183: { 581 },
184: { 340 },
185: { 340 },
186: { 833 },
187: { 833 },
188: { 833 },
189: { 487 },
190: { 917 },
191: { 651 },
192: { 628 },
193: { 638 },
194: { 716 },
195: { 596 },
196: { 552 },
197: { 710 },
198: { 760 },
199: { 354 },
200: { 465 },
201: { 650 },
202: { 543 },
203: { 883 },
204: { 727 },
205: { 752 },
206: { 587 },
207: { 752 },
208: { 671 },
209: { 568 },
210: { 603 },
211: { 705 },
212: { 635 },
213: { 946 },
214: { 637 },
215: { 610 },
216: { 592 },
217: { 443 },
218: { 491 },
219: { 443 },
220: { 1000 },
221: { 500 },
222: { 255 },
223: { 544 },
224: { 577 },
225: { 476 },
226: { 596 },
227: { 524 },
228: { 341 },
229: { 551 },
230: { 597 },
231: { 305 },
232: { 297 },
233: { 553 },
234: { 304 },
235: { 892 },
236: { 605 },
237: { 577 },
238: { 591 },
239: { 575 },
240: { 421 },
241: { 447 },
242: { 358 },
243: { 600 },
244: { 513 },
245: { 799 },
246: { 531 },
247: { 515 },
248: { 495 },
249: { 493 },
250: { 500 },
251: { 493 },
252: { 833 },
1.13 kristaps 253: } },
1.22 kristaps 254: { "CharterBT-Italic", {
255: { 278 },
256: { 338 },
257: { 331 },
258: { 745 },
259: { 556 },
260: { 852 },
261: { 704 },
262: { 201 },
263: { 419 },
264: { 419 },
265: { 500 },
266: { 833 },
267: { 278 },
268: { 319 },
269: { 278 },
270: { 481 },
271: { 556 },
272: { 556 },
273: { 556 },
274: { 556 },
275: { 556 },
276: { 556 },
277: { 556 },
278: { 556 },
279: { 556 },
280: { 556 },
281: { 319 },
282: { 319 },
283: { 833 },
284: { 833 },
285: { 833 },
286: { 486 },
287: { 942 },
288: { 606 },
289: { 588 },
290: { 604 },
291: { 671 },
292: { 546 },
293: { 509 },
294: { 664 },
295: { 712 },
296: { 312 },
297: { 447 },
298: { 625 },
299: { 498 },
300: { 839 },
301: { 683 },
302: { 708 },
303: { 542 },
304: { 708 },
305: { 602 },
306: { 537 },
307: { 565 },
308: { 664 },
309: { 590 },
310: { 898 },
311: { 569 },
312: { 562 },
313: { 556 },
314: { 421 },
315: { 481 },
316: { 421 },
317: { 1000 },
318: { 500 },
319: { 201 },
320: { 525 },
321: { 507 },
322: { 394 },
323: { 523 },
324: { 424 },
325: { 292 },
326: { 481 },
327: { 551 },
328: { 287 },
329: { 269 },
330: { 514 },
331: { 275 },
332: { 815 },
333: { 556 },
334: { 502 },
335: { 516 },
336: { 512 },
337: { 398 },
338: { 370 },
339: { 333 },
340: { 553 },
341: { 454 },
342: { 713 },
343: { 477 },
344: { 475 },
345: { 440 },
346: { 486 },
347: { 500 },
348: { 486 },
349: { 833 },
1.13 kristaps 350: } },
351: };
352:
1.15 kristaps 353: /* These work the buffer used by the header and footer. */
1.4 kristaps 354: #define PS_BUFSLOP 128
355: #define PS_GROWBUF(p, sz) \
356: do if ((p)->engine.ps.psmargcur + (sz) > \
357: (p)->engine.ps.psmargsz) { \
358: (p)->engine.ps.psmargsz += /* CONSTCOND */ \
359: MAX(PS_BUFSLOP, (sz)); \
360: (p)->engine.ps.psmarg = realloc \
361: ((p)->engine.ps.psmarg, \
362: (p)->engine.ps.psmargsz); \
363: if (NULL == (p)->engine.ps.psmarg) { \
364: perror(NULL); \
365: exit(EXIT_FAILURE); \
366: } \
367: } while (/* CONSTCOND */ 0)
368:
1.9 kristaps 369:
1.20 kristaps 370: static double ps_hspan(const struct termp *,
1.19 kristaps 371: const struct roffsu *);
372: static size_t ps_width(const struct termp *, char);
373: static void ps_advance(struct termp *, size_t);
1.2 kristaps 374: static void ps_begin(struct termp *);
375: static void ps_end(struct termp *);
376: static void ps_endline(struct termp *);
1.9 kristaps 377: static void ps_fclose(struct termp *);
1.19 kristaps 378: static void ps_letter(struct termp *, char);
1.9 kristaps 379: static void ps_pclose(struct termp *);
1.13 kristaps 380: static void ps_pletter(struct termp *, int);
1.4 kristaps 381: static void ps_printf(struct termp *, const char *, ...);
382: static void ps_putchar(struct termp *, char);
1.9 kristaps 383: static void ps_setfont(struct termp *, enum termfont);
1.2 kristaps 384:
385:
1.1 kristaps 386: void *
1.17 kristaps 387: ps_alloc(char *outopts)
1.1 kristaps 388: {
389: struct termp *p;
1.18 kristaps 390: size_t pagex, pagey, margin, lineheight;
1.17 kristaps 391: const char *toks[2];
1.18 kristaps 392: const char *paper;
1.17 kristaps 393: char *v;
1.1 kristaps 394:
395: if (NULL == (p = term_alloc(TERMENC_ASCII)))
396: return(NULL);
397:
1.19 kristaps 398: p->advance = ps_advance;
1.2 kristaps 399: p->begin = ps_begin;
400: p->end = ps_end;
401: p->endline = ps_endline;
1.19 kristaps 402: p->hspan = ps_hspan;
403: p->letter = ps_letter;
404: p->type = TERMTYPE_PS;
1.11 kristaps 405: p->width = ps_width;
1.21 kristaps 406:
407: p->engine.ps.scale = 10;
1.17 kristaps 408:
409: toks[0] = "paper";
410: toks[1] = NULL;
411:
1.19 kristaps 412: paper = "letter";
413:
1.17 kristaps 414: while (outopts && *outopts)
415: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
416: case (0):
1.18 kristaps 417: paper = v;
1.17 kristaps 418: break;
419: default:
420: break;
421: }
1.16 kristaps 422:
1.21 kristaps 423: margin = PNT2AFM(p, 72);
424: lineheight = PNT2AFM(p, 12);
425:
1.18 kristaps 426: if (0 == strcasecmp(paper, "a4")) {
1.21 kristaps 427: pagex = PNT2AFM(p, 595);
428: pagey = PNT2AFM(p, 842);
1.18 kristaps 429: } else {
1.21 kristaps 430: pagex = PNT2AFM(p, 612);
431: pagey = PNT2AFM(p, 792);
1.18 kristaps 432: }
433:
1.16 kristaps 434: assert(margin * 2 < pagex);
435: assert(margin * 2 < pagey);
436:
437: p->engine.ps.width = pagex;
438: p->engine.ps.height = pagey;
439: p->engine.ps.header = pagey - (margin / 2);
440: p->engine.ps.top = pagey - margin;
441: p->engine.ps.footer = (margin / 2);
442: p->engine.ps.bottom = margin;
443: p->engine.ps.left = margin;
1.18 kristaps 444: p->engine.ps.lineheight = lineheight;
1.16 kristaps 445:
446: p->defrmargin = pagex - (margin * 2);
1.1 kristaps 447: return(p);
448: }
449:
450:
451: void
452: ps_free(void *arg)
453: {
1.4 kristaps 454: struct termp *p;
455:
456: p = (struct termp *)arg;
457:
458: if (p->engine.ps.psmarg)
459: free(p->engine.ps.psmarg);
460:
461: term_free(p);
462: }
463:
464:
465: static void
466: ps_printf(struct termp *p, const char *fmt, ...)
467: {
468: va_list ap;
469: int pos;
470:
471: va_start(ap, fmt);
472:
473: /*
474: * If we're running in regular mode, then pipe directly into
475: * vprintf(). If we're processing margins, then push the data
476: * into our growable margin buffer.
477: */
1.1 kristaps 478:
1.4 kristaps 479: if ( ! (PS_MARGINS & p->engine.ps.psstate)) {
480: vprintf(fmt, ap);
481: va_end(ap);
482: return;
483: }
484:
485: /*
486: * XXX: I assume that the in-margin print won't exceed
487: * PS_BUFSLOP (128 bytes), which is reasonable but still an
488: * assumption that will cause pukeage if it's not the case.
489: */
490:
491: PS_GROWBUF(p, PS_BUFSLOP);
492:
493: pos = (int)p->engine.ps.psmargcur;
494: vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
495: p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
1.5 kristaps 496:
497: va_end(ap);
1.4 kristaps 498: }
499:
500:
501: static void
502: ps_putchar(struct termp *p, char c)
503: {
504: int pos;
505:
506: /* See ps_printf(). */
507:
508: if ( ! (PS_MARGINS & p->engine.ps.psstate)) {
509: putchar(c);
510: return;
511: }
512:
513: PS_GROWBUF(p, 2);
514:
515: pos = (int)p->engine.ps.psmargcur++;
1.5 kristaps 516: p->engine.ps.psmarg[pos++] = c;
1.4 kristaps 517: p->engine.ps.psmarg[pos] = '\0';
1.2 kristaps 518: }
519:
520:
1.3 kristaps 521: /* ARGSUSED */
1.2 kristaps 522: static void
523: ps_end(struct termp *p)
524: {
525:
1.4 kristaps 526: /*
527: * At the end of the file, do one last showpage. This is the
528: * same behaviour as groff(1) and works for multiple pages as
529: * well as just one.
530: */
531:
1.8 kristaps 532: assert(0 == p->engine.ps.psstate);
533: assert('\0' == p->engine.ps.last);
1.4 kristaps 534: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
535: printf("%s", p->engine.ps.psmarg);
1.16 kristaps 536: p->engine.ps.pages++;
1.4 kristaps 537: printf("showpage\n");
1.16 kristaps 538:
539: printf("%%%%Trailer\n");
540: printf("%%%%Pages: %zu\n", p->engine.ps.pages);
541: printf("%%%%EOF\n");
1.2 kristaps 542: }
543:
544:
545: static void
546: ps_begin(struct termp *p)
547: {
1.13 kristaps 548: time_t t;
1.16 kristaps 549: int i;
1.2 kristaps 550:
1.9 kristaps 551: /*
552: * Print margins into margin buffer. Nothing gets output to the
553: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 554: */
555:
1.4 kristaps 556: if (p->engine.ps.psmarg) {
557: assert(p->engine.ps.psmargsz);
558: p->engine.ps.psmarg[0] = '\0';
559: }
560:
561: p->engine.ps.psmargcur = 0;
1.9 kristaps 562: p->engine.ps.psstate = PS_MARGINS;
1.16 kristaps 563: p->engine.ps.pscol = p->engine.ps.left;
564: p->engine.ps.psrow = p->engine.ps.header;
1.4 kristaps 565:
1.9 kristaps 566: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 567:
568: (*p->headf)(p, p->argf);
569: (*p->endline)(p);
570:
1.16 kristaps 571: p->engine.ps.pscol = p->engine.ps.left;
572: p->engine.ps.psrow = p->engine.ps.footer;
1.4 kristaps 573:
574: (*p->footf)(p, p->argf);
575: (*p->endline)(p);
576:
577: p->engine.ps.psstate &= ~PS_MARGINS;
1.9 kristaps 578:
1.4 kristaps 579: assert(0 == p->engine.ps.psstate);
1.9 kristaps 580: assert(p->engine.ps.psmarg);
581: assert('\0' != p->engine.ps.psmarg[0]);
582:
583: /*
584: * Print header and initialise page state. Following this,
585: * stuff gets printed to the screen, so make sure we're sane.
586: */
1.4 kristaps 587:
1.13 kristaps 588: t = time(NULL);
589:
1.16 kristaps 590: printf("%%!PS-Adobe-3.0\n");
1.13 kristaps 591: printf("%%%%Creator: mandoc-%s\n", VERSION);
592: printf("%%%%CreationDate: %s", ctime(&t));
1.16 kristaps 593: printf("%%%%DocumentData: Clean7Bit\n");
594: printf("%%%%Orientation: Portrait\n");
595: printf("%%%%Pages: (atend)\n");
1.13 kristaps 596: printf("%%%%PageOrder: Ascend\n");
1.16 kristaps 597: printf("%%%%DocumentMedia: Default %zu %zu 0 () ()\n",
1.23 ! kristaps 598: AFM2PNT(p, p->engine.ps.width),
! 599: AFM2PNT(p, p->engine.ps.height));
1.16 kristaps 600: printf("%%%%DocumentNeededResources: font");
601: for (i = 0; i < (int)TERMFONT__MAX; i++)
602: printf(" %s", fonts[i].name);
603: printf("\n%%%%EndComments\n");
604:
605: printf("%%%%Page: %zu %zu\n",
606: p->engine.ps.pages + 1,
607: p->engine.ps.pages + 1);
1.13 kristaps 608:
1.9 kristaps 609: ps_setfont(p, TERMFONT_NONE);
1.16 kristaps 610: p->engine.ps.pscol = p->engine.ps.left;
611: p->engine.ps.psrow = p->engine.ps.top;
1.2 kristaps 612: }
613:
614:
615: static void
1.13 kristaps 616: ps_pletter(struct termp *p, int c)
1.2 kristaps 617: {
1.14 kristaps 618: int f;
1.2 kristaps 619:
1.9 kristaps 620: /*
621: * If we're not in a PostScript "word" context, then open one
622: * now at the current cursor.
623: */
624:
1.2 kristaps 625: if ( ! (PS_INLINE & p->engine.ps.psstate)) {
1.4 kristaps 626: ps_printf(p, "%zu %zu moveto\n(",
1.21 kristaps 627: AFM2PNT(p, p->engine.ps.pscol),
628: AFM2PNT(p, p->engine.ps.psrow));
1.2 kristaps 629: p->engine.ps.psstate |= PS_INLINE;
630: }
631:
632: /*
633: * We need to escape these characters as per the PostScript
634: * specification. We would also escape non-graphable characters
635: * (like tabs), but none of them would get to this point and
636: * it's superfluous to abort() on them.
637: */
638:
639: switch (c) {
640: case ('('):
641: /* FALLTHROUGH */
642: case (')'):
643: /* FALLTHROUGH */
644: case ('\\'):
1.4 kristaps 645: ps_putchar(p, '\\');
1.2 kristaps 646: break;
647: default:
648: break;
649: }
650:
651: /* Write the character and adjust where we are on the page. */
1.9 kristaps 652:
1.14 kristaps 653: f = (int)p->engine.ps.lastf;
1.13 kristaps 654:
1.14 kristaps 655: if (c <= 32 || (c - 32 > MAXCHAR)) {
1.13 kristaps 656: ps_putchar(p, ' ');
1.18 kristaps 657: p->engine.ps.pscol += fonts[f].gly[0].wx;
1.13 kristaps 658: return;
659: }
660:
1.4 kristaps 661: ps_putchar(p, c);
1.14 kristaps 662: c -= 32;
1.18 kristaps 663: p->engine.ps.pscol += fonts[f].gly[c].wx;
1.2 kristaps 664: }
665:
666:
667: static void
1.9 kristaps 668: ps_pclose(struct termp *p)
669: {
670:
671: /*
672: * Spit out that we're exiting a word context (this is a
673: * "partial close" because we don't check the last-char buffer
674: * or anything).
675: */
676:
677: if ( ! (PS_INLINE & p->engine.ps.psstate))
678: return;
679:
680: ps_printf(p, ") show\n");
681: p->engine.ps.psstate &= ~PS_INLINE;
682: }
683:
684:
685: static void
686: ps_fclose(struct termp *p)
687: {
688:
689: /*
690: * Strong closure: if we have a last-char, spit it out after
691: * checking that we're in the right font mode. This will of
692: * course open a new scope, if applicable.
693: *
694: * Following this, close out any scope that's open.
695: */
696:
697: if ('\0' != p->engine.ps.last) {
698: if (p->engine.ps.lastf != TERMFONT_NONE) {
699: ps_pclose(p);
700: ps_setfont(p, TERMFONT_NONE);
701: }
702: ps_pletter(p, p->engine.ps.last);
703: p->engine.ps.last = '\0';
704: }
705:
706: if ( ! (PS_INLINE & p->engine.ps.psstate))
707: return;
708:
709: ps_pclose(p);
710: }
711:
712:
713: static void
1.8 kristaps 714: ps_letter(struct termp *p, char c)
715: {
716: char cc;
1.9 kristaps 717:
718: /*
719: * State machine dictates whether to buffer the last character
720: * or not. Basically, encoded words are detected by checking if
721: * we're an "8" and switching on the buffer. Then we put "8" in
722: * our buffer, and on the next charater, flush both character
723: * and buffer. Thus, "regular" words are detected by having a
724: * regular character and a regular buffer character.
725: */
726:
1.8 kristaps 727: if ('\0' == p->engine.ps.last) {
728: assert(8 != c);
729: p->engine.ps.last = c;
730: return;
731: } else if (8 == p->engine.ps.last) {
732: assert(8 != c);
1.9 kristaps 733: p->engine.ps.last = '\0';
1.8 kristaps 734: } else if (8 == c) {
735: assert(8 != p->engine.ps.last);
1.9 kristaps 736: if ('_' == p->engine.ps.last) {
737: if (p->engine.ps.lastf != TERMFONT_UNDER) {
738: ps_pclose(p);
739: ps_setfont(p, TERMFONT_UNDER);
740: }
741: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
742: ps_pclose(p);
743: ps_setfont(p, TERMFONT_BOLD);
744: }
1.8 kristaps 745: p->engine.ps.last = c;
746: return;
747: } else {
1.9 kristaps 748: if (p->engine.ps.lastf != TERMFONT_NONE) {
749: ps_pclose(p);
750: ps_setfont(p, TERMFONT_NONE);
751: }
1.8 kristaps 752: cc = p->engine.ps.last;
753: p->engine.ps.last = c;
754: c = cc;
755: }
756:
1.9 kristaps 757: ps_pletter(p, c);
1.8 kristaps 758: }
759:
760:
761: static void
1.2 kristaps 762: ps_advance(struct termp *p, size_t len)
763: {
764:
1.9 kristaps 765: /*
766: * Advance some spaces. This can probably be made smarter,
767: * i.e., to have multiple space-separated words in the same
768: * scope, but this is easier: just close out the current scope
769: * and readjust our column settings.
770: */
1.8 kristaps 771:
1.9 kristaps 772: ps_fclose(p);
1.14 kristaps 773: p->engine.ps.pscol += len;
1.2 kristaps 774: }
775:
776:
777: static void
778: ps_endline(struct termp *p)
779: {
1.8 kristaps 780:
1.9 kristaps 781: /* Close out any scopes we have open: we're at eoln. */
782:
783: ps_fclose(p);
1.2 kristaps 784:
1.9 kristaps 785: /*
786: * If we're in the margin, don't try to recalculate our current
787: * row. XXX: if the column tries to be fancy with multiple
788: * lines, we'll do nasty stuff.
789: */
1.2 kristaps 790:
791: if (PS_MARGINS & p->engine.ps.psstate)
792: return;
793:
1.9 kristaps 794: /*
795: * Put us down a line. If we're at the page bottom, spit out a
796: * showpage and restart our row.
797: */
798:
1.16 kristaps 799: p->engine.ps.pscol = p->engine.ps.left;
800: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
801: p->engine.ps.bottom) {
802: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 803: return;
804: }
805:
1.4 kristaps 806: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
807: printf("%s", p->engine.ps.psmarg);
1.23 ! kristaps 808: printf("showpage\n");
! 809: p->engine.ps.pages++;
1.16 kristaps 810: printf("%%%%Page: %zu %zu\n",
811: p->engine.ps.pages + 1,
812: p->engine.ps.pages + 1);
813: p->engine.ps.psrow = p->engine.ps.top;
1.1 kristaps 814: }
1.9 kristaps 815:
816:
817: static void
818: ps_setfont(struct termp *p, enum termfont f)
819: {
820:
1.16 kristaps 821: assert(f < TERMFONT__MAX);
1.21 kristaps 822: ps_printf(p, "/%s %zu selectfont\n",
823: fonts[(int)f].name, p->engine.ps.scale);
1.9 kristaps 824: p->engine.ps.lastf = f;
825: }
826:
1.11 kristaps 827:
1.12 kristaps 828: /* ARGSUSED */
1.11 kristaps 829: static size_t
830: ps_width(const struct termp *p, char c)
831: {
832:
1.14 kristaps 833: if (c <= 32 || c - 32 >= MAXCHAR)
1.18 kristaps 834: return(fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 835:
836: c -= 32;
1.18 kristaps 837: return(fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 838: }
1.19 kristaps 839:
840:
1.20 kristaps 841: static double
1.19 kristaps 842: ps_hspan(const struct termp *p, const struct roffsu *su)
843: {
844: double r;
845:
846: /*
847: * All of these measurements are derived by converting from the
1.21 kristaps 848: * native measurement to AFM units.
1.19 kristaps 849: */
850:
851: switch (su->unit) {
852: case (SCALE_CM):
1.21 kristaps 853: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 854: break;
855: case (SCALE_IN):
1.21 kristaps 856: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 857: break;
858: case (SCALE_PC):
1.21 kristaps 859: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 860: break;
861: case (SCALE_PT):
1.21 kristaps 862: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 863: break;
864: case (SCALE_EM):
865: r = su->scale *
866: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
867: break;
868: case (SCALE_MM):
1.21 kristaps 869: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 870: break;
871: case (SCALE_EN):
872: r = su->scale *
873: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
874: break;
875: case (SCALE_VS):
876: r = su->scale * p->engine.ps.lineheight;
877: break;
878: default:
879: r = su->scale;
880: break;
881: }
882:
1.20 kristaps 883: return(r);
1.19 kristaps 884: }
885: