]> git.cameronkatri.com Git - mandoc.git/blobdiff - term_ps.c
Correct dimensions for DocumentMedia. Noted by schwarze@, as gv(1) was
[mandoc.git] / term_ps.c
index 56d1be2400880cd705e3f402ee91410cb7490c69..9090aeaef1f448ee8b3987ec2e9c9661e6daac0c 100644 (file)
--- a/term_ps.c
+++ b/term_ps.c
@@ -1,4 +1,4 @@
-/*     $Id: term_ps.c,v 1.10 2010/06/19 20:46:28 kristaps Exp $ */
+/*     $Id: term_ps.c,v 1.23 2010/06/30 15:05:02 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
  *
 
 #include <assert.h>
 #include <stdarg.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 
 #include "out.h"
 #include "main.h"
 #include "term.h"
 
-#define        PS_CHAR_WIDTH     6
-#define        PS_CHAR_HEIGHT    12
-#define        PS_CHAR_TOPMARG  (792 - 24)
-#define        PS_CHAR_TOP      (PS_CHAR_TOPMARG - 36)
-#define        PS_CHAR_LEFT      36
-#define        PS_CHAR_BOTMARG   24
-#define        PS_CHAR_BOT      (PS_CHAR_BOTMARG + 36)
+/* Convert PostScript point "x" to an AFM unit. */
+#define        PNT2AFM(p, x) \
+       (size_t)((double)(x) * (1000.0 / (double)(p)->engine.ps.scale))
 
+/* Convert an AFM unit "x" to a PostScript points */
+#define        AFM2PNT(p, x) \
+       (size_t)((double)(x) / (1000.0 / (double)(p)->engine.ps.scale))
+
+struct glyph {
+       int               wx; /* WX in AFM */
+};
+
+struct font {
+       const char       *name; /* FontName in AFM */
+#define        MAXCHAR           95 /* total characters we can handle */
+       struct glyph      gly[MAXCHAR]; /* glyph metrics */
+};
+
+/*
+ * We define, for the time being, three fonts: bold, oblique/italic, and
+ * normal (roman).  The following table hard-codes the font metrics for
+ * ASCII, i.e., 32--127.
+ */
+
+static const struct font fonts[TERMFONT__MAX] = {
+       { "CharterBT-Roman", {
+               {  278 },
+               {  338 },
+               {  331 },
+               {  745 },
+               {  556 },
+               {  852 },
+               {  704 },
+               {  201 },
+               {  417 },
+               {  417 },
+               {  500 },
+               {  833 },
+               {  278 },
+               {  319 },
+               {  278 },
+               {  481 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  319 },
+               {  319 },
+               {  833 },
+               {  833 },
+               {  833 },
+               {  486 },
+               {  942 },
+               {  639 },
+               {  604 },
+               {  632 },
+               {  693 },
+               {  576 },
+               {  537 },
+               {  694 },
+               {  738 },
+               {  324 },
+               {  444 },
+               {  611 },
+               {  520 },
+               {  866 },
+               {  713 },
+               {  731 },
+               {  558 },
+               {  731 },
+               {  646 },
+               {  556 },
+               {  597 },
+               {  694 },
+               {  618 },
+               {  928 },
+               {  600 },
+               {  586 },
+               {  586 },
+               {  421 },
+               {  481 },
+               {  421 },
+               { 1000 },
+               {  500 },
+               {  201 },
+               {  507 },
+               {  539 },
+               {  446 },
+               {  565 },
+               {  491 },
+               {  321 },
+               {  523 },
+               {  564 },
+               {  280 },
+               {  266 },
+               {  517 },
+               {  282 },
+               {  843 },
+               {  568 },
+               {  539 },
+               {  551 },
+               {  531 },
+               {  382 },
+               {  400 },
+               {  334 },
+               {  569 },
+               {  494 },
+               {  771 },
+               {  503 },
+               {  495 },
+               {  468 },
+               {  486 },
+               {  500 },
+               {  486 },
+               {  833 },
+       } },
+       { "CharterBT-Bold", {
+               {  291 },
+               {  340 },
+               {  339 },
+               {  736 },
+               {  581 },
+               {  888 },
+               {  741 },
+               {  255 },
+               {  428 },
+               {  428 },
+               {  500 },
+               {  833 },
+               {  289 },
+               {  326 },
+               {  289 },
+               {  491 },
+               {  581 },
+               {  581 },
+               {  581 },
+               {  581 },
+               {  581 },
+               {  581 },
+               {  581 },
+               {  581 },
+               {  581 },
+               {  581 },
+               {  340 },
+               {  340 },
+               {  833 },
+               {  833 },
+               {  833 },
+               {  487 },
+               {  917 },
+               {  651 },
+               {  628 },
+               {  638 },
+               {  716 },
+               {  596 },
+               {  552 },
+               {  710 },
+               {  760 },
+               {  354 },
+               {  465 },
+               {  650 },
+               {  543 },
+               {  883 },
+               {  727 },
+               {  752 },
+               {  587 },
+               {  752 },
+               {  671 },
+               {  568 },
+               {  603 },
+               {  705 },
+               {  635 },
+               {  946 },
+               {  637 },
+               {  610 },
+               {  592 },
+               {  443 },
+               {  491 },
+               {  443 },
+               { 1000 },
+               {  500 },
+               {  255 },
+               {  544 },
+               {  577 },
+               {  476 },
+               {  596 },
+               {  524 },
+               {  341 },
+               {  551 },
+               {  597 },
+               {  305 },
+               {  297 },
+               {  553 },
+               {  304 },
+               {  892 },
+               {  605 },
+               {  577 },
+               {  591 },
+               {  575 },
+               {  421 },
+               {  447 },
+               {  358 },
+               {  600 },
+               {  513 },
+               {  799 },
+               {  531 },
+               {  515 },
+               {  495 },
+               {  493 },
+               {  500 },
+               {  493 },
+               {  833 },
+       } },
+       { "CharterBT-Italic", {
+               {  278 },
+               {  338 },
+               {  331 },
+               {  745 },
+               {  556 },
+               {  852 },
+               {  704 },
+               {  201 },
+               {  419 },
+               {  419 },
+               {  500 },
+               {  833 },
+               {  278 },
+               {  319 },
+               {  278 },
+               {  481 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  556 },
+               {  319 },
+               {  319 },
+               {  833 },
+               {  833 },
+               {  833 },
+               {  486 },
+               {  942 },
+               {  606 },
+               {  588 },
+               {  604 },
+               {  671 },
+               {  546 },
+               {  509 },
+               {  664 },
+               {  712 },
+               {  312 },
+               {  447 },
+               {  625 },
+               {  498 },
+               {  839 },
+               {  683 },
+               {  708 },
+               {  542 },
+               {  708 },
+               {  602 },
+               {  537 },
+               {  565 },
+               {  664 },
+               {  590 },
+               {  898 },
+               {  569 },
+               {  562 },
+               {  556 },
+               {  421 },
+               {  481 },
+               {  421 },
+               { 1000 },
+               {  500 },
+               {  201 },
+               {  525 },
+               {  507 },
+               {  394 },
+               {  523 },
+               {  424 },
+               {  292 },
+               {  481 },
+               {  551 },
+               {  287 },
+               {  269 },
+               {  514 },
+               {  275 },
+               {  815 },
+               {  556 },
+               {  502 },
+               {  516 },
+               {  512 },
+               {  398 },
+               {  370 },
+               {  333 },
+               {  553 },
+               {  454 },
+               {  713 },
+               {  477 },
+               {  475 },
+               {  440 },
+               {  486 },
+               {  500 },
+               {  486 },
+               {  833 },
+       } },
+};
+
+/* These work the buffer used by the header and footer. */
 #define        PS_BUFSLOP        128
 #define        PS_GROWBUF(p, sz) \
        do if ((p)->engine.ps.psmargcur + (sz) > \
        } while (/* CONSTCOND */ 0)
 
 
-static void              ps_letter(struct termp *, char);
+static double            ps_hspan(const struct termp *,
+                               const struct roffsu *);
+static size_t            ps_width(const struct termp *, char);
+static void              ps_advance(struct termp *, size_t);
 static void              ps_begin(struct termp *);
 static void              ps_end(struct termp *);
-static void              ps_advance(struct termp *, size_t);
 static void              ps_endline(struct termp *);
 static void              ps_fclose(struct termp *);
+static void              ps_letter(struct termp *, char);
 static void              ps_pclose(struct termp *);
-static void              ps_pletter(struct termp *, char);
+static void              ps_pletter(struct termp *, int);
 static void              ps_printf(struct termp *, const char *, ...);
 static void              ps_putchar(struct termp *, char);
 static void              ps_setfont(struct termp *, enum termfont);
 
 
 void *
-ps_alloc(void)
+ps_alloc(char *outopts)
 {
        struct termp    *p;
+       size_t           pagex, pagey, margin, lineheight;
+       const char      *toks[2];
+       const char      *paper;
+       char            *v;
 
        if (NULL == (p = term_alloc(TERMENC_ASCII)))
                return(NULL);
 
-       p->type = TERMTYPE_PS;
-       p->letter = ps_letter;
+       p->advance = ps_advance;
        p->begin = ps_begin;
        p->end = ps_end;
-       p->advance = ps_advance;
        p->endline = ps_endline;
+       p->hspan = ps_hspan;
+       p->letter = ps_letter;
+       p->type = TERMTYPE_PS;
+       p->width = ps_width;
+       
+       p->engine.ps.scale = 10;
+
+       toks[0] = "paper";
+       toks[1] = NULL;
+
+       paper = "letter";
+
+       while (outopts && *outopts)
+               switch (getsubopt(&outopts, UNCONST(toks), &v)) {
+               case (0):
+                       paper = v;
+                       break;
+               default:
+                       break;
+               }
+
+       margin = PNT2AFM(p, 72);
+       lineheight = PNT2AFM(p, 12);
+
+       if (0 == strcasecmp(paper, "a4")) {
+               pagex = PNT2AFM(p, 595);
+               pagey = PNT2AFM(p, 842);
+       } else {
+               pagex = PNT2AFM(p, 612);
+               pagey = PNT2AFM(p, 792);
+       }
+
+       assert(margin * 2 < pagex);
+       assert(margin * 2 < pagey);
+
+       p->engine.ps.width = pagex;
+       p->engine.ps.height = pagey;
+       p->engine.ps.header = pagey - (margin / 2);
+       p->engine.ps.top = pagey - margin;
+       p->engine.ps.footer = (margin / 2);
+       p->engine.ps.bottom = margin;
+       p->engine.ps.left = margin;
+       p->engine.ps.lineheight = lineheight;
+
+       p->defrmargin = pagex - (margin * 2);
        return(p);
 }
 
@@ -170,14 +533,20 @@ ps_end(struct termp *p)
        assert('\0' == p->engine.ps.last);
        assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
        printf("%s", p->engine.ps.psmarg);
+       p->engine.ps.pages++;
        printf("showpage\n");
-       printf("%s\n", "%%EOF");
+
+       printf("%%%%Trailer\n");
+       printf("%%%%Pages: %zu\n", p->engine.ps.pages);
+       printf("%%%%EOF\n");
 }
 
 
 static void
 ps_begin(struct termp *p)
 {
+       time_t           t;
+       int              i;
 
        /* 
         * Print margins into margin buffer.  Nothing gets output to the
@@ -191,16 +560,16 @@ ps_begin(struct termp *p)
 
        p->engine.ps.psmargcur = 0;
        p->engine.ps.psstate = PS_MARGINS;
-       p->engine.ps.pscol = PS_CHAR_LEFT;
-       p->engine.ps.psrow = PS_CHAR_TOPMARG;
+       p->engine.ps.pscol = p->engine.ps.left;
+       p->engine.ps.psrow = p->engine.ps.header;
 
        ps_setfont(p, TERMFONT_NONE);
 
        (*p->headf)(p, p->argf);
        (*p->endline)(p);
 
-       p->engine.ps.pscol = PS_CHAR_LEFT;
-       p->engine.ps.psrow = PS_CHAR_BOTMARG;
+       p->engine.ps.pscol = p->engine.ps.left;
+       p->engine.ps.psrow = p->engine.ps.footer;
 
        (*p->footf)(p, p->argf);
        (*p->endline)(p);
@@ -216,16 +585,37 @@ ps_begin(struct termp *p)
         * stuff gets printed to the screen, so make sure we're sane.
         */
 
-       printf("%s\n", "%!PS");
+       t = time(NULL);
+
+       printf("%%!PS-Adobe-3.0\n");
+       printf("%%%%Creator: mandoc-%s\n", VERSION);
+       printf("%%%%CreationDate: %s", ctime(&t));
+       printf("%%%%DocumentData: Clean7Bit\n");
+       printf("%%%%Orientation: Portrait\n");
+       printf("%%%%Pages: (atend)\n");
+       printf("%%%%PageOrder: Ascend\n");
+       printf("%%%%DocumentMedia: Default %zu %zu 0 () ()\n",
+                       AFM2PNT(p, p->engine.ps.width),
+                       AFM2PNT(p, p->engine.ps.height));
+       printf("%%%%DocumentNeededResources: font");
+       for (i = 0; i < (int)TERMFONT__MAX; i++)
+               printf(" %s", fonts[i].name);
+       printf("\n%%%%EndComments\n");
+
+       printf("%%%%Page: %zu %zu\n", 
+                       p->engine.ps.pages + 1, 
+                       p->engine.ps.pages + 1);
+
        ps_setfont(p, TERMFONT_NONE);
-       p->engine.ps.pscol = PS_CHAR_LEFT;
-       p->engine.ps.psrow = PS_CHAR_TOP;
+       p->engine.ps.pscol = p->engine.ps.left;
+       p->engine.ps.psrow = p->engine.ps.top;
 }
 
 
 static void
-ps_pletter(struct termp *p, char c)
+ps_pletter(struct termp *p, int c)
 {
+       int              f;
        
        /*
         * If we're not in a PostScript "word" context, then open one
@@ -234,8 +624,8 @@ ps_pletter(struct termp *p, char c)
 
        if ( ! (PS_INLINE & p->engine.ps.psstate)) {
                ps_printf(p, "%zu %zu moveto\n(", 
-                               p->engine.ps.pscol, 
-                               p->engine.ps.psrow);
+                               AFM2PNT(p, p->engine.ps.pscol),
+                               AFM2PNT(p, p->engine.ps.psrow));
                p->engine.ps.psstate |= PS_INLINE;
        }
 
@@ -260,8 +650,17 @@ ps_pletter(struct termp *p, char c)
 
        /* Write the character and adjust where we are on the page. */
 
+       f = (int)p->engine.ps.lastf;
+
+       if (c <= 32 || (c - 32 > MAXCHAR)) {
+               ps_putchar(p, ' ');
+               p->engine.ps.pscol += fonts[f].gly[0].wx;
+               return;
+       } 
+
        ps_putchar(p, c);
-       p->engine.ps.pscol += PS_CHAR_WIDTH;
+       c -= 32;
+       p->engine.ps.pscol += fonts[f].gly[c].wx;
 }
 
 
@@ -371,7 +770,7 @@ ps_advance(struct termp *p, size_t len)
         */
 
        ps_fclose(p);
-       p->engine.ps.pscol += len ? len * PS_CHAR_WIDTH : 0;
+       p->engine.ps.pscol += len;
 }
 
 
@@ -397,16 +796,21 @@ ps_endline(struct termp *p)
         * showpage and restart our row.
         */
 
-       p->engine.ps.pscol = PS_CHAR_LEFT;
-       if (p->engine.ps.psrow >= PS_CHAR_HEIGHT + PS_CHAR_BOT) {
-               p->engine.ps.psrow -= PS_CHAR_HEIGHT;
+       p->engine.ps.pscol = p->engine.ps.left;
+       if (p->engine.ps.psrow >= p->engine.ps.lineheight + 
+                       p->engine.ps.bottom) {
+               p->engine.ps.psrow -= p->engine.ps.lineheight;
                return;
        }
 
        assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
        printf("%s", p->engine.ps.psmarg);
        printf("showpage\n");
-       p->engine.ps.psrow = PS_CHAR_TOP;
+       p->engine.ps.pages++;
+       printf("%%%%Page: %zu %zu\n", 
+                       p->engine.ps.pages + 1, 
+                       p->engine.ps.pages + 1);
+       p->engine.ps.psrow = p->engine.ps.top;
 }
 
 
@@ -414,14 +818,68 @@ static void
 ps_setfont(struct termp *p, enum termfont f)
 {
 
-       if (TERMFONT_BOLD == f) 
-               ps_printf(p, "/Courier-Bold\n");
-       else if (TERMFONT_UNDER == f)
-               ps_printf(p, "/Courier-Oblique\n");
-       else
-               ps_printf(p, "/Courier\n");
-
-       ps_printf(p, "10 selectfont\n");
+       assert(f < TERMFONT__MAX);
+       ps_printf(p, "/%s %zu selectfont\n", 
+                       fonts[(int)f].name, p->engine.ps.scale);
        p->engine.ps.lastf = f;
 }
 
+
+/* ARGSUSED */
+static size_t
+ps_width(const struct termp *p, char c)
+{
+
+       if (c <= 32 || c - 32 >= MAXCHAR)
+               return(fonts[(int)TERMFONT_NONE].gly[0].wx);
+
+       c -= 32;
+       return(fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
+}
+
+
+static double
+ps_hspan(const struct termp *p, const struct roffsu *su)
+{
+       double           r;
+       
+       /*
+        * All of these measurements are derived by converting from the
+        * native measurement to AFM units.
+        */
+
+       switch (su->unit) {
+       case (SCALE_CM):
+               r = PNT2AFM(p, su->scale * 28.34);
+               break;
+       case (SCALE_IN):
+               r = PNT2AFM(p, su->scale * 72);
+               break;
+       case (SCALE_PC):
+               r = PNT2AFM(p, su->scale * 12);
+               break;
+       case (SCALE_PT):
+               r = PNT2AFM(p, su->scale * 100);
+               break;
+       case (SCALE_EM):
+               r = su->scale * 
+                       fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
+               break;
+       case (SCALE_MM):
+               r = PNT2AFM(p, su->scale * 2.834);
+               break;
+       case (SCALE_EN):
+               r = su->scale * 
+                       fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
+               break;
+       case (SCALE_VS):
+               r = su->scale * p->engine.ps.lineheight;
+               break;
+       default:
+               r = su->scale;
+               break;
+       }
+
+       return(r);
+}
+