![[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 |
1.21 ! kristaps 1: /* $Id: term_ps.c,v 1.20 2010/06/30 12:30:36 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] = {
1.13 kristaps 60: { "Courier", {
61: { 600 },
62: { 600 },
63: { 600 },
64: { 600 },
65: { 600 },
66: { 600 },
67: { 600 },
68: { 600 },
69: { 600 },
70: { 600 },
71: { 600 },
72: { 600 },
73: { 600 },
74: { 600 },
75: { 600 },
76: { 600 },
77: { 600 },
78: { 600 },
79: { 600 },
80: { 600 },
81: { 600 },
82: { 600 },
83: { 600 },
84: { 600 },
85: { 600 },
86: { 600 },
87: { 600 },
88: { 600 },
89: { 600 },
90: { 600 },
91: { 600 },
92: { 600 },
93: { 600 },
94: { 600 },
95: { 600 },
96: { 600 },
97: { 600 },
98: { 600 },
99: { 600 },
100: { 600 },
101: { 600 },
102: { 600 },
103: { 600 },
104: { 600 },
105: { 600 },
106: { 600 },
107: { 600 },
108: { 600 },
109: { 600 },
110: { 600 },
111: { 600 },
112: { 600 },
113: { 600 },
114: { 600 },
115: { 600 },
116: { 600 },
117: { 600 },
118: { 600 },
119: { 600 },
120: { 600 },
121: { 600 },
122: { 600 },
123: { 600 },
124: { 600 },
125: { 600 },
126: { 600 },
127: { 600 },
128: { 600 },
129: { 600 },
130: { 600 },
131: { 600 },
132: { 600 },
133: { 600 },
134: { 600 },
135: { 600 },
136: { 600 },
137: { 600 },
138: { 600 },
139: { 600 },
140: { 600 },
141: { 600 },
142: { 600 },
143: { 600 },
144: { 600 },
145: { 600 },
146: { 600 },
147: { 600 },
148: { 600 },
149: { 600 },
150: { 600 },
151: { 600 },
152: { 600 },
153: { 600 },
154: { 600 },
155: { 600 },
156: } },
157: { "Courier-Bold", {
158: { 600 },
159: { 600 },
160: { 600 },
161: { 600 },
162: { 600 },
163: { 600 },
164: { 600 },
165: { 600 },
166: { 600 },
167: { 600 },
168: { 600 },
169: { 600 },
170: { 600 },
171: { 600 },
172: { 600 },
173: { 600 },
174: { 600 },
175: { 600 },
176: { 600 },
177: { 600 },
178: { 600 },
179: { 600 },
180: { 600 },
181: { 600 },
182: { 600 },
183: { 600 },
184: { 600 },
185: { 600 },
186: { 600 },
187: { 600 },
188: { 600 },
189: { 600 },
190: { 600 },
191: { 600 },
192: { 600 },
193: { 600 },
194: { 600 },
195: { 600 },
196: { 600 },
197: { 600 },
198: { 600 },
199: { 600 },
200: { 600 },
201: { 600 },
202: { 600 },
203: { 600 },
204: { 600 },
205: { 600 },
206: { 600 },
207: { 600 },
208: { 600 },
209: { 600 },
210: { 600 },
211: { 600 },
212: { 600 },
213: { 600 },
214: { 600 },
215: { 600 },
216: { 600 },
217: { 600 },
218: { 600 },
219: { 600 },
220: { 600 },
221: { 600 },
222: { 600 },
223: { 600 },
224: { 600 },
225: { 600 },
226: { 600 },
227: { 600 },
228: { 600 },
229: { 600 },
230: { 600 },
231: { 600 },
232: { 600 },
233: { 600 },
234: { 600 },
235: { 600 },
236: { 600 },
237: { 600 },
238: { 600 },
239: { 600 },
240: { 600 },
241: { 600 },
242: { 600 },
243: { 600 },
244: { 600 },
245: { 600 },
246: { 600 },
247: { 600 },
248: { 600 },
249: { 600 },
250: { 600 },
251: { 600 },
252: { 600 },
253: } },
254: { "Courier-Oblique", {
255: { 600 },
256: { 600 },
257: { 600 },
258: { 600 },
259: { 600 },
260: { 600 },
261: { 600 },
262: { 600 },
263: { 600 },
264: { 600 },
265: { 600 },
266: { 600 },
267: { 600 },
268: { 600 },
269: { 600 },
270: { 600 },
271: { 600 },
272: { 600 },
273: { 600 },
274: { 600 },
275: { 600 },
276: { 600 },
277: { 600 },
278: { 600 },
279: { 600 },
280: { 600 },
281: { 600 },
282: { 600 },
283: { 600 },
284: { 600 },
285: { 600 },
286: { 600 },
287: { 600 },
288: { 600 },
289: { 600 },
290: { 600 },
291: { 600 },
292: { 600 },
293: { 600 },
294: { 600 },
295: { 600 },
296: { 600 },
297: { 600 },
298: { 600 },
299: { 600 },
300: { 600 },
301: { 600 },
302: { 600 },
303: { 600 },
304: { 600 },
305: { 600 },
306: { 600 },
307: { 600 },
308: { 600 },
309: { 600 },
310: { 600 },
311: { 600 },
312: { 600 },
313: { 600 },
314: { 600 },
315: { 600 },
316: { 600 },
317: { 600 },
318: { 600 },
319: { 600 },
320: { 600 },
321: { 600 },
322: { 600 },
323: { 600 },
324: { 600 },
325: { 600 },
326: { 600 },
327: { 600 },
328: { 600 },
329: { 600 },
330: { 600 },
331: { 600 },
332: { 600 },
333: { 600 },
334: { 600 },
335: { 600 },
336: { 600 },
337: { 600 },
338: { 600 },
339: { 600 },
340: { 600 },
341: { 600 },
342: { 600 },
343: { 600 },
344: { 600 },
345: { 600 },
346: { 600 },
347: { 600 },
348: { 600 },
349: { 600 },
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");
597: printf("%%%%Orientation: Portrait\n");
1.16 kristaps 598: printf("%%%%DocumentMedia: Default %zu %zu 0 () ()\n",
599: p->engine.ps.width,
600: p->engine.ps.height);
601: printf("%%%%DocumentNeededResources: font");
602: for (i = 0; i < (int)TERMFONT__MAX; i++)
603: printf(" %s", fonts[i].name);
604: printf("\n%%%%EndComments\n");
605:
606: printf("%%%%Page: %zu %zu\n",
607: p->engine.ps.pages + 1,
608: p->engine.ps.pages + 1);
1.13 kristaps 609:
1.9 kristaps 610: ps_setfont(p, TERMFONT_NONE);
1.16 kristaps 611: p->engine.ps.pscol = p->engine.ps.left;
612: p->engine.ps.psrow = p->engine.ps.top;
1.2 kristaps 613: }
614:
615:
616: static void
1.13 kristaps 617: ps_pletter(struct termp *p, int c)
1.2 kristaps 618: {
1.14 kristaps 619: int f;
1.2 kristaps 620:
1.9 kristaps 621: /*
622: * If we're not in a PostScript "word" context, then open one
623: * now at the current cursor.
624: */
625:
1.2 kristaps 626: if ( ! (PS_INLINE & p->engine.ps.psstate)) {
1.4 kristaps 627: ps_printf(p, "%zu %zu moveto\n(",
1.21 ! kristaps 628: AFM2PNT(p, p->engine.ps.pscol),
! 629: AFM2PNT(p, p->engine.ps.psrow));
1.2 kristaps 630: p->engine.ps.psstate |= PS_INLINE;
631: }
632:
633: /*
634: * We need to escape these characters as per the PostScript
635: * specification. We would also escape non-graphable characters
636: * (like tabs), but none of them would get to this point and
637: * it's superfluous to abort() on them.
638: */
639:
640: switch (c) {
641: case ('('):
642: /* FALLTHROUGH */
643: case (')'):
644: /* FALLTHROUGH */
645: case ('\\'):
1.4 kristaps 646: ps_putchar(p, '\\');
1.2 kristaps 647: break;
648: default:
649: break;
650: }
651:
652: /* Write the character and adjust where we are on the page. */
1.9 kristaps 653:
1.14 kristaps 654: f = (int)p->engine.ps.lastf;
1.13 kristaps 655:
1.14 kristaps 656: if (c <= 32 || (c - 32 > MAXCHAR)) {
1.13 kristaps 657: ps_putchar(p, ' ');
1.18 kristaps 658: p->engine.ps.pscol += fonts[f].gly[0].wx;
1.13 kristaps 659: return;
660: }
661:
1.4 kristaps 662: ps_putchar(p, c);
1.14 kristaps 663: c -= 32;
1.18 kristaps 664: p->engine.ps.pscol += fonts[f].gly[c].wx;
1.2 kristaps 665: }
666:
667:
668: static void
1.9 kristaps 669: ps_pclose(struct termp *p)
670: {
671:
672: /*
673: * Spit out that we're exiting a word context (this is a
674: * "partial close" because we don't check the last-char buffer
675: * or anything).
676: */
677:
678: if ( ! (PS_INLINE & p->engine.ps.psstate))
679: return;
680:
681: ps_printf(p, ") show\n");
682: p->engine.ps.psstate &= ~PS_INLINE;
683: }
684:
685:
686: static void
687: ps_fclose(struct termp *p)
688: {
689:
690: /*
691: * Strong closure: if we have a last-char, spit it out after
692: * checking that we're in the right font mode. This will of
693: * course open a new scope, if applicable.
694: *
695: * Following this, close out any scope that's open.
696: */
697:
698: if ('\0' != p->engine.ps.last) {
699: if (p->engine.ps.lastf != TERMFONT_NONE) {
700: ps_pclose(p);
701: ps_setfont(p, TERMFONT_NONE);
702: }
703: ps_pletter(p, p->engine.ps.last);
704: p->engine.ps.last = '\0';
705: }
706:
707: if ( ! (PS_INLINE & p->engine.ps.psstate))
708: return;
709:
710: ps_pclose(p);
711: }
712:
713:
714: static void
1.8 kristaps 715: ps_letter(struct termp *p, char c)
716: {
717: char cc;
1.9 kristaps 718:
719: /*
720: * State machine dictates whether to buffer the last character
721: * or not. Basically, encoded words are detected by checking if
722: * we're an "8" and switching on the buffer. Then we put "8" in
723: * our buffer, and on the next charater, flush both character
724: * and buffer. Thus, "regular" words are detected by having a
725: * regular character and a regular buffer character.
726: */
727:
1.8 kristaps 728: if ('\0' == p->engine.ps.last) {
729: assert(8 != c);
730: p->engine.ps.last = c;
731: return;
732: } else if (8 == p->engine.ps.last) {
733: assert(8 != c);
1.9 kristaps 734: p->engine.ps.last = '\0';
1.8 kristaps 735: } else if (8 == c) {
736: assert(8 != p->engine.ps.last);
1.9 kristaps 737: if ('_' == p->engine.ps.last) {
738: if (p->engine.ps.lastf != TERMFONT_UNDER) {
739: ps_pclose(p);
740: ps_setfont(p, TERMFONT_UNDER);
741: }
742: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
743: ps_pclose(p);
744: ps_setfont(p, TERMFONT_BOLD);
745: }
1.8 kristaps 746: p->engine.ps.last = c;
747: return;
748: } else {
1.9 kristaps 749: if (p->engine.ps.lastf != TERMFONT_NONE) {
750: ps_pclose(p);
751: ps_setfont(p, TERMFONT_NONE);
752: }
1.8 kristaps 753: cc = p->engine.ps.last;
754: p->engine.ps.last = c;
755: c = cc;
756: }
757:
1.9 kristaps 758: ps_pletter(p, c);
1.8 kristaps 759: }
760:
761:
762: static void
1.2 kristaps 763: ps_advance(struct termp *p, size_t len)
764: {
765:
1.9 kristaps 766: /*
767: * Advance some spaces. This can probably be made smarter,
768: * i.e., to have multiple space-separated words in the same
769: * scope, but this is easier: just close out the current scope
770: * and readjust our column settings.
771: */
1.8 kristaps 772:
1.9 kristaps 773: ps_fclose(p);
1.14 kristaps 774: p->engine.ps.pscol += len;
1.2 kristaps 775: }
776:
777:
778: static void
779: ps_endline(struct termp *p)
780: {
1.8 kristaps 781:
1.9 kristaps 782: /* Close out any scopes we have open: we're at eoln. */
783:
784: ps_fclose(p);
1.2 kristaps 785:
1.9 kristaps 786: /*
787: * If we're in the margin, don't try to recalculate our current
788: * row. XXX: if the column tries to be fancy with multiple
789: * lines, we'll do nasty stuff.
790: */
1.2 kristaps 791:
792: if (PS_MARGINS & p->engine.ps.psstate)
793: return;
794:
1.9 kristaps 795: /*
796: * Put us down a line. If we're at the page bottom, spit out a
797: * showpage and restart our row.
798: */
799:
1.16 kristaps 800: p->engine.ps.pscol = p->engine.ps.left;
801: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
802: p->engine.ps.bottom) {
803: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 804: return;
805: }
806:
1.4 kristaps 807: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
808: printf("%s", p->engine.ps.psmarg);
1.16 kristaps 809: printf("%%%%Page: %zu %zu\n",
810: p->engine.ps.pages + 1,
811: p->engine.ps.pages + 1);
1.2 kristaps 812: printf("showpage\n");
1.16 kristaps 813: p->engine.ps.pages++;
814: p->engine.ps.psrow = p->engine.ps.top;
1.1 kristaps 815: }
1.9 kristaps 816:
817:
818: static void
819: ps_setfont(struct termp *p, enum termfont f)
820: {
821:
1.16 kristaps 822: assert(f < TERMFONT__MAX);
1.21 ! kristaps 823: ps_printf(p, "/%s %zu selectfont\n",
! 824: fonts[(int)f].name, p->engine.ps.scale);
1.9 kristaps 825: p->engine.ps.lastf = f;
826: }
827:
1.11 kristaps 828:
1.12 kristaps 829: /* ARGSUSED */
1.11 kristaps 830: static size_t
831: ps_width(const struct termp *p, char c)
832: {
833:
1.14 kristaps 834: if (c <= 32 || c - 32 >= MAXCHAR)
1.18 kristaps 835: return(fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 836:
837: c -= 32;
1.18 kristaps 838: return(fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 839: }
1.19 kristaps 840:
841:
1.20 kristaps 842: static double
1.19 kristaps 843: ps_hspan(const struct termp *p, const struct roffsu *su)
844: {
845: double r;
846:
847: /*
848: * All of these measurements are derived by converting from the
1.21 ! kristaps 849: * native measurement to AFM units.
1.19 kristaps 850: */
851:
852: switch (su->unit) {
853: case (SCALE_CM):
1.21 ! kristaps 854: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 855: break;
856: case (SCALE_IN):
1.21 ! kristaps 857: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 858: break;
859: case (SCALE_PC):
1.21 ! kristaps 860: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 861: break;
862: case (SCALE_PT):
1.21 ! kristaps 863: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 864: break;
865: case (SCALE_EM):
866: r = su->scale *
867: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
868: break;
869: case (SCALE_MM):
1.21 ! kristaps 870: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 871: break;
872: case (SCALE_EN):
873: r = su->scale *
874: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
875: break;
876: case (SCALE_VS):
877: r = su->scale * p->engine.ps.lineheight;
878: break;
879: default:
880: r = su->scale;
881: break;
882: }
883:
1.20 kristaps 884: return(r);
1.19 kristaps 885: }
886: