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1.19 ! kristaps 1: /* $Id: term_ps.c,v 1.18 2010/06/30 11:45:21 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:
1.13 kristaps 35: struct glyph {
36: int wx; /* WX in AFM */
37: };
38:
39: struct font {
40: const char *name; /* FontName in AFM */
1.15 kristaps 41: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 42: struct glyph gly[MAXCHAR]; /* glyph metrics */
43: };
44:
45: /*
46: * We define, for the time being, three fonts: bold, oblique/italic, and
47: * normal (roman). The following table hard-codes the font metrics for
48: * ASCII, i.e., 32--127.
49: */
50:
1.16 kristaps 51: static const struct font fonts[TERMFONT__MAX] = {
1.13 kristaps 52: { "Courier", {
53: { 600 },
54: { 600 },
55: { 600 },
56: { 600 },
57: { 600 },
58: { 600 },
59: { 600 },
60: { 600 },
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: } },
149: { "Courier-Bold", {
150: { 600 },
151: { 600 },
152: { 600 },
153: { 600 },
154: { 600 },
155: { 600 },
156: { 600 },
157: { 600 },
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: } },
246: { "Courier-Oblique", {
247: { 600 },
248: { 600 },
249: { 600 },
250: { 600 },
251: { 600 },
252: { 600 },
253: { 600 },
254: { 600 },
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: } },
343: };
344:
1.15 kristaps 345: /* These work the buffer used by the header and footer. */
1.4 kristaps 346: #define PS_BUFSLOP 128
347: #define PS_GROWBUF(p, sz) \
348: do if ((p)->engine.ps.psmargcur + (sz) > \
349: (p)->engine.ps.psmargsz) { \
350: (p)->engine.ps.psmargsz += /* CONSTCOND */ \
351: MAX(PS_BUFSLOP, (sz)); \
352: (p)->engine.ps.psmarg = realloc \
353: ((p)->engine.ps.psmarg, \
354: (p)->engine.ps.psmargsz); \
355: if (NULL == (p)->engine.ps.psmarg) { \
356: perror(NULL); \
357: exit(EXIT_FAILURE); \
358: } \
359: } while (/* CONSTCOND */ 0)
360:
1.9 kristaps 361:
1.19 ! kristaps 362: static size_t ps_hspan(const struct termp *,
! 363: const struct roffsu *);
! 364: static size_t ps_width(const struct termp *, char);
! 365: static void ps_advance(struct termp *, size_t);
1.2 kristaps 366: static void ps_begin(struct termp *);
367: static void ps_end(struct termp *);
368: static void ps_endline(struct termp *);
1.9 kristaps 369: static void ps_fclose(struct termp *);
1.19 ! kristaps 370: static void ps_letter(struct termp *, char);
1.9 kristaps 371: static void ps_pclose(struct termp *);
1.13 kristaps 372: static void ps_pletter(struct termp *, int);
1.4 kristaps 373: static void ps_printf(struct termp *, const char *, ...);
374: static void ps_putchar(struct termp *, char);
1.9 kristaps 375: static void ps_setfont(struct termp *, enum termfont);
1.2 kristaps 376:
377:
1.1 kristaps 378: void *
1.17 kristaps 379: ps_alloc(char *outopts)
1.1 kristaps 380: {
381: struct termp *p;
1.18 kristaps 382: size_t pagex, pagey, margin, lineheight;
1.17 kristaps 383: const char *toks[2];
1.18 kristaps 384: const char *paper;
1.17 kristaps 385: char *v;
1.1 kristaps 386:
387: if (NULL == (p = term_alloc(TERMENC_ASCII)))
388: return(NULL);
389:
1.19 ! kristaps 390: p->advance = ps_advance;
1.2 kristaps 391: p->begin = ps_begin;
392: p->end = ps_end;
393: p->endline = ps_endline;
1.19 ! kristaps 394: p->hspan = ps_hspan;
! 395: p->letter = ps_letter;
! 396: p->type = TERMTYPE_PS;
1.11 kristaps 397: p->width = ps_width;
1.17 kristaps 398:
399: toks[0] = "paper";
400: toks[1] = NULL;
401:
1.19 ! kristaps 402: paper = "letter";
! 403:
1.17 kristaps 404: while (outopts && *outopts)
405: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
406: case (0):
1.18 kristaps 407: paper = v;
1.17 kristaps 408: break;
409: default:
410: break;
411: }
1.16 kristaps 412:
1.18 kristaps 413: if (0 == strcasecmp(paper, "a4")) {
414: pagex = 595 * 100;
415: pagey = 842 * 100;
416: } else {
417: pagex = 612 * 100;
418: pagey = 792 * 100;
419: }
420:
421: margin = 72 * 100;
422: lineheight = 12 * 100;
423:
1.16 kristaps 424: assert(margin * 2 < pagex);
425: assert(margin * 2 < pagey);
426:
427: p->engine.ps.width = pagex;
428: p->engine.ps.height = pagey;
429: p->engine.ps.header = pagey - (margin / 2);
430: p->engine.ps.top = pagey - margin;
431: p->engine.ps.footer = (margin / 2);
432: p->engine.ps.bottom = margin;
433: p->engine.ps.left = margin;
1.18 kristaps 434: p->engine.ps.lineheight = lineheight;
1.16 kristaps 435:
436: p->defrmargin = pagex - (margin * 2);
1.1 kristaps 437: return(p);
438: }
439:
440:
441: void
442: ps_free(void *arg)
443: {
1.4 kristaps 444: struct termp *p;
445:
446: p = (struct termp *)arg;
447:
448: if (p->engine.ps.psmarg)
449: free(p->engine.ps.psmarg);
450:
451: term_free(p);
452: }
453:
454:
455: static void
456: ps_printf(struct termp *p, const char *fmt, ...)
457: {
458: va_list ap;
459: int pos;
460:
461: va_start(ap, fmt);
462:
463: /*
464: * If we're running in regular mode, then pipe directly into
465: * vprintf(). If we're processing margins, then push the data
466: * into our growable margin buffer.
467: */
1.1 kristaps 468:
1.4 kristaps 469: if ( ! (PS_MARGINS & p->engine.ps.psstate)) {
470: vprintf(fmt, ap);
471: va_end(ap);
472: return;
473: }
474:
475: /*
476: * XXX: I assume that the in-margin print won't exceed
477: * PS_BUFSLOP (128 bytes), which is reasonable but still an
478: * assumption that will cause pukeage if it's not the case.
479: */
480:
481: PS_GROWBUF(p, PS_BUFSLOP);
482:
483: pos = (int)p->engine.ps.psmargcur;
484: vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
485: p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
1.5 kristaps 486:
487: va_end(ap);
1.4 kristaps 488: }
489:
490:
491: static void
492: ps_putchar(struct termp *p, char c)
493: {
494: int pos;
495:
496: /* See ps_printf(). */
497:
498: if ( ! (PS_MARGINS & p->engine.ps.psstate)) {
499: putchar(c);
500: return;
501: }
502:
503: PS_GROWBUF(p, 2);
504:
505: pos = (int)p->engine.ps.psmargcur++;
1.5 kristaps 506: p->engine.ps.psmarg[pos++] = c;
1.4 kristaps 507: p->engine.ps.psmarg[pos] = '\0';
1.2 kristaps 508: }
509:
510:
1.3 kristaps 511: /* ARGSUSED */
1.2 kristaps 512: static void
513: ps_end(struct termp *p)
514: {
515:
1.4 kristaps 516: /*
517: * At the end of the file, do one last showpage. This is the
518: * same behaviour as groff(1) and works for multiple pages as
519: * well as just one.
520: */
521:
1.8 kristaps 522: assert(0 == p->engine.ps.psstate);
523: assert('\0' == p->engine.ps.last);
1.4 kristaps 524: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
525: printf("%s", p->engine.ps.psmarg);
1.16 kristaps 526: p->engine.ps.pages++;
1.4 kristaps 527: printf("showpage\n");
1.16 kristaps 528:
529: printf("%%%%Trailer\n");
530: printf("%%%%Pages: %zu\n", p->engine.ps.pages);
531: printf("%%%%EOF\n");
1.2 kristaps 532: }
533:
534:
535: static void
536: ps_begin(struct termp *p)
537: {
1.13 kristaps 538: time_t t;
1.16 kristaps 539: int i;
1.2 kristaps 540:
1.9 kristaps 541: /*
542: * Print margins into margin buffer. Nothing gets output to the
543: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 544: */
545:
1.4 kristaps 546: if (p->engine.ps.psmarg) {
547: assert(p->engine.ps.psmargsz);
548: p->engine.ps.psmarg[0] = '\0';
549: }
550:
551: p->engine.ps.psmargcur = 0;
1.9 kristaps 552: p->engine.ps.psstate = PS_MARGINS;
1.16 kristaps 553: p->engine.ps.pscol = p->engine.ps.left;
554: p->engine.ps.psrow = p->engine.ps.header;
1.4 kristaps 555:
1.9 kristaps 556: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 557:
558: (*p->headf)(p, p->argf);
559: (*p->endline)(p);
560:
1.16 kristaps 561: p->engine.ps.pscol = p->engine.ps.left;
562: p->engine.ps.psrow = p->engine.ps.footer;
1.4 kristaps 563:
564: (*p->footf)(p, p->argf);
565: (*p->endline)(p);
566:
567: p->engine.ps.psstate &= ~PS_MARGINS;
1.9 kristaps 568:
1.4 kristaps 569: assert(0 == p->engine.ps.psstate);
1.9 kristaps 570: assert(p->engine.ps.psmarg);
571: assert('\0' != p->engine.ps.psmarg[0]);
572:
573: /*
574: * Print header and initialise page state. Following this,
575: * stuff gets printed to the screen, so make sure we're sane.
576: */
1.4 kristaps 577:
1.13 kristaps 578: t = time(NULL);
579:
1.16 kristaps 580: printf("%%!PS-Adobe-3.0\n");
1.13 kristaps 581: printf("%%%%Creator: mandoc-%s\n", VERSION);
582: printf("%%%%CreationDate: %s", ctime(&t));
1.16 kristaps 583: printf("%%%%DocumentData: Clean7Bit\n");
584: printf("%%%%Orientation: Portrait\n");
585: printf("%%%%Pages: (atend)\n");
1.13 kristaps 586: printf("%%%%PageOrder: Ascend\n");
587: printf("%%%%Orientation: Portrait\n");
1.16 kristaps 588: printf("%%%%DocumentMedia: Default %zu %zu 0 () ()\n",
589: p->engine.ps.width,
590: p->engine.ps.height);
591: printf("%%%%DocumentNeededResources: font");
592: for (i = 0; i < (int)TERMFONT__MAX; i++)
593: printf(" %s", fonts[i].name);
594: printf("\n%%%%EndComments\n");
595:
596: printf("%%%%Page: %zu %zu\n",
597: p->engine.ps.pages + 1,
598: p->engine.ps.pages + 1);
1.13 kristaps 599:
1.9 kristaps 600: ps_setfont(p, TERMFONT_NONE);
1.16 kristaps 601: p->engine.ps.pscol = p->engine.ps.left;
602: p->engine.ps.psrow = p->engine.ps.top;
1.2 kristaps 603: }
604:
605:
606: static void
1.13 kristaps 607: ps_pletter(struct termp *p, int c)
1.2 kristaps 608: {
1.14 kristaps 609: int f;
1.2 kristaps 610:
1.9 kristaps 611: /*
612: * If we're not in a PostScript "word" context, then open one
613: * now at the current cursor.
614: */
615:
1.2 kristaps 616: if ( ! (PS_INLINE & p->engine.ps.psstate)) {
1.4 kristaps 617: ps_printf(p, "%zu %zu moveto\n(",
1.18 kristaps 618: (size_t)(p->engine.ps.pscol / 100),
619: (size_t)(p->engine.ps.psrow / 100));
1.2 kristaps 620: p->engine.ps.psstate |= PS_INLINE;
621: }
622:
623: /*
624: * We need to escape these characters as per the PostScript
625: * specification. We would also escape non-graphable characters
626: * (like tabs), but none of them would get to this point and
627: * it's superfluous to abort() on them.
628: */
629:
630: switch (c) {
631: case ('('):
632: /* FALLTHROUGH */
633: case (')'):
634: /* FALLTHROUGH */
635: case ('\\'):
1.4 kristaps 636: ps_putchar(p, '\\');
1.2 kristaps 637: break;
638: default:
639: break;
640: }
641:
642: /* Write the character and adjust where we are on the page. */
1.9 kristaps 643:
1.14 kristaps 644: f = (int)p->engine.ps.lastf;
1.13 kristaps 645:
1.14 kristaps 646: if (c <= 32 || (c - 32 > MAXCHAR)) {
1.13 kristaps 647: ps_putchar(p, ' ');
1.18 kristaps 648: p->engine.ps.pscol += fonts[f].gly[0].wx;
1.13 kristaps 649: return;
650: }
651:
1.4 kristaps 652: ps_putchar(p, c);
1.14 kristaps 653: c -= 32;
1.18 kristaps 654: p->engine.ps.pscol += fonts[f].gly[c].wx;
1.2 kristaps 655: }
656:
657:
658: static void
1.9 kristaps 659: ps_pclose(struct termp *p)
660: {
661:
662: /*
663: * Spit out that we're exiting a word context (this is a
664: * "partial close" because we don't check the last-char buffer
665: * or anything).
666: */
667:
668: if ( ! (PS_INLINE & p->engine.ps.psstate))
669: return;
670:
671: ps_printf(p, ") show\n");
672: p->engine.ps.psstate &= ~PS_INLINE;
673: }
674:
675:
676: static void
677: ps_fclose(struct termp *p)
678: {
679:
680: /*
681: * Strong closure: if we have a last-char, spit it out after
682: * checking that we're in the right font mode. This will of
683: * course open a new scope, if applicable.
684: *
685: * Following this, close out any scope that's open.
686: */
687:
688: if ('\0' != p->engine.ps.last) {
689: if (p->engine.ps.lastf != TERMFONT_NONE) {
690: ps_pclose(p);
691: ps_setfont(p, TERMFONT_NONE);
692: }
693: ps_pletter(p, p->engine.ps.last);
694: p->engine.ps.last = '\0';
695: }
696:
697: if ( ! (PS_INLINE & p->engine.ps.psstate))
698: return;
699:
700: ps_pclose(p);
701: }
702:
703:
704: static void
1.8 kristaps 705: ps_letter(struct termp *p, char c)
706: {
707: char cc;
1.9 kristaps 708:
709: /*
710: * State machine dictates whether to buffer the last character
711: * or not. Basically, encoded words are detected by checking if
712: * we're an "8" and switching on the buffer. Then we put "8" in
713: * our buffer, and on the next charater, flush both character
714: * and buffer. Thus, "regular" words are detected by having a
715: * regular character and a regular buffer character.
716: */
717:
1.8 kristaps 718: if ('\0' == p->engine.ps.last) {
719: assert(8 != c);
720: p->engine.ps.last = c;
721: return;
722: } else if (8 == p->engine.ps.last) {
723: assert(8 != c);
1.9 kristaps 724: p->engine.ps.last = '\0';
1.8 kristaps 725: } else if (8 == c) {
726: assert(8 != p->engine.ps.last);
1.9 kristaps 727: if ('_' == p->engine.ps.last) {
728: if (p->engine.ps.lastf != TERMFONT_UNDER) {
729: ps_pclose(p);
730: ps_setfont(p, TERMFONT_UNDER);
731: }
732: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
733: ps_pclose(p);
734: ps_setfont(p, TERMFONT_BOLD);
735: }
1.8 kristaps 736: p->engine.ps.last = c;
737: return;
738: } else {
1.9 kristaps 739: if (p->engine.ps.lastf != TERMFONT_NONE) {
740: ps_pclose(p);
741: ps_setfont(p, TERMFONT_NONE);
742: }
1.8 kristaps 743: cc = p->engine.ps.last;
744: p->engine.ps.last = c;
745: c = cc;
746: }
747:
1.9 kristaps 748: ps_pletter(p, c);
1.8 kristaps 749: }
750:
751:
752: static void
1.2 kristaps 753: ps_advance(struct termp *p, size_t len)
754: {
755:
1.9 kristaps 756: /*
757: * Advance some spaces. This can probably be made smarter,
758: * i.e., to have multiple space-separated words in the same
759: * scope, but this is easier: just close out the current scope
760: * and readjust our column settings.
761: */
1.8 kristaps 762:
1.9 kristaps 763: ps_fclose(p);
1.14 kristaps 764: p->engine.ps.pscol += len;
1.2 kristaps 765: }
766:
767:
768: static void
769: ps_endline(struct termp *p)
770: {
1.8 kristaps 771:
1.9 kristaps 772: /* Close out any scopes we have open: we're at eoln. */
773:
774: ps_fclose(p);
1.2 kristaps 775:
1.9 kristaps 776: /*
777: * If we're in the margin, don't try to recalculate our current
778: * row. XXX: if the column tries to be fancy with multiple
779: * lines, we'll do nasty stuff.
780: */
1.2 kristaps 781:
782: if (PS_MARGINS & p->engine.ps.psstate)
783: return;
784:
1.9 kristaps 785: /*
786: * Put us down a line. If we're at the page bottom, spit out a
787: * showpage and restart our row.
788: */
789:
1.16 kristaps 790: p->engine.ps.pscol = p->engine.ps.left;
791: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
792: p->engine.ps.bottom) {
793: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 794: return;
795: }
796:
1.4 kristaps 797: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
798: printf("%s", p->engine.ps.psmarg);
1.16 kristaps 799: printf("%%%%Page: %zu %zu\n",
800: p->engine.ps.pages + 1,
801: p->engine.ps.pages + 1);
1.2 kristaps 802: printf("showpage\n");
1.16 kristaps 803: p->engine.ps.pages++;
804: p->engine.ps.psrow = p->engine.ps.top;
1.1 kristaps 805: }
1.9 kristaps 806:
807:
808: static void
809: ps_setfont(struct termp *p, enum termfont f)
810: {
811:
1.16 kristaps 812: assert(f < TERMFONT__MAX);
1.13 kristaps 813: ps_printf(p, "/%s 10 selectfont\n", fonts[(int)f].name);
1.9 kristaps 814: p->engine.ps.lastf = f;
815: }
816:
1.11 kristaps 817:
1.12 kristaps 818: /* ARGSUSED */
1.11 kristaps 819: static size_t
820: ps_width(const struct termp *p, char c)
821: {
822:
1.14 kristaps 823: if (c <= 32 || c - 32 >= MAXCHAR)
1.18 kristaps 824: return(fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 825:
826: c -= 32;
1.18 kristaps 827: return(fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 828: }
1.19 ! kristaps 829:
! 830:
! 831: static size_t
! 832: ps_hspan(const struct termp *p, const struct roffsu *su)
! 833: {
! 834: double r;
! 835:
! 836: /*
! 837: * All of these measurements are derived by converting from the
! 838: * native measurement to AFM units, which are (scalesize/1000).
! 839: * Since scalesize is 10 for us, we can just skip to (x/100).
! 840: */
! 841:
! 842: switch (su->unit) {
! 843: case (SCALE_CM):
! 844: r = su->scale * 28.34 * 100;
! 845: break;
! 846: case (SCALE_IN):
! 847: r = su->scale * 72 * 100;
! 848: break;
! 849: case (SCALE_PC):
! 850: r = su->scale * 12 * 100;
! 851: break;
! 852: case (SCALE_PT):
! 853: r = su->scale * 100;
! 854: break;
! 855: case (SCALE_EM):
! 856: r = su->scale *
! 857: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
! 858: break;
! 859: case (SCALE_MM):
! 860: r = su->scale * 2.834 * 100;
! 861: break;
! 862: case (SCALE_EN):
! 863: r = su->scale *
! 864: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
! 865: break;
! 866: case (SCALE_VS):
! 867: r = su->scale * p->engine.ps.lineheight;
! 868: break;
! 869: default:
! 870: r = su->scale;
! 871: break;
! 872: }
! 873:
! 874: /* Explicitly disallow negative values. */
! 875:
! 876: if (r < 0.0)
! 877: r = 0.0;
! 878:
! 879: return((size_t)/* LINTED */
! 880: r);
! 881: }
! 882: