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author	Ingo Schwarze <schwarze@cvs.openbsd.org>	2010-06-29 14:41:29 +0000
committer	Ingo Schwarze <schwarze@cvs.openbsd.org>	2010-06-29 14:41:29 +0000
commit	4c125d4843c8bded68b7b31900797d1f080a0af0 (patch)
tree	af9cfc372ed16e6dd8f372aa738e92d9bac7959a /usr.bin/mandoc/term_ps.c
parent	a2dcc33cf8bf19857bd5a12a68cb8e19b34f2fae (diff)

framework for glyph width encoding; from kristaps@

Diffstat (limited to 'usr.bin/mandoc/term_ps.c')

-rw-r--r--

usr.bin/mandoc/term_ps.c

431

1 files changed, 396 insertions, 35 deletions

diff --git a/usr.bin/mandoc/term_ps.c b/usr.bin/mandoc/term_ps.c
index 0ac3753b239..3f134a46151 100644
--- a/usr.bin/mandoc/term_ps.c
+++ b/usr.bin/mandoc/term_ps.c

@@ -1,4 +1,4 @@

-/* $Id: term_ps.c,v 1.3 2010/06/26 19:08:00 schwarze Exp $ */

+/* $Id: term_ps.c,v 1.4 2010/06/29 14:41:28 schwarze Exp $ */

@@ -25,19 +25,323 @@

#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)

+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] = {

+ { "Courier", {

+ { 600 },

+ } },

+ { "Courier-Bold", {

+ { 600 },

+ } },

+ { "Courier-Oblique", {

+ { 600 },

+ } },

+};

+/* 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) > \

@@ -62,7 +366,7 @@ static void ps_endline(struct termp *);

static void ps_fclose(struct termp *);

static size_t ps_width(const 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);

@@ -72,12 +376,14 @@ void *

ps_alloc(void)

{

struct termp *p;

+ size_t pagex, pagey, margin;

if (NULL == (p = term_alloc(TERMENC_ASCII)))

return(NULL);

- p->defrmargin = 78;

- p->tabwidth = 5;

+ pagex = 612;

+ pagey = 792;

+ margin = 72;

p->type = TERMTYPE_PS;

p->letter = ps_letter;

@@ -86,6 +392,20 @@ ps_alloc(void)

p->advance = ps_advance;

p->endline = ps_endline;

p->width = ps_width;

+ 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 = 12;

+ p->defrmargin = pagex - (margin * 2);

return(p);

}

@@ -175,14 +495,20 @@ 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

@@ -196,16 +522,16 @@ 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);

@@ -221,16 +547,38 @@ 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("%%%%Orientation: Portrait\n");

+ printf("%%%%DocumentMedia: Default %zu %zu 0 () ()\n",

+ p->engine.ps.width,

+ 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

@@ -265,8 +613,17 @@ 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 / 100);

+ return;

+ }

ps_putchar(p, c);

- p->engine.ps.pscol += PS_CHAR_WIDTH;

+ c -= 32;

+ p->engine.ps.pscol += (fonts[f].gly[c].wx / 100);

}

@@ -376,7 +733,7 @@ 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;

}

@@ -402,16 +759,21 @@ 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("%%%%Page: %zu %zu\n",

+ p->engine.ps.pages + 1,

+ p->engine.ps.pages + 1);

printf("showpage\n");

- p->engine.ps.psrow = PS_CHAR_TOP;

+ p->engine.ps.pages++;

+ p->engine.ps.psrow = p->engine.ps.top;

}

@@ -419,21 +781,20 @@ 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 10 selectfont\n", fonts[(int)f].name);

p->engine.ps.lastf = f;

}

+/* ARGSUSED */

static size_t

ps_width(const struct termp *p, char c)

{

- return(1);

+ if (c <= 32 || c - 32 >= MAXCHAR)

+ return(fonts[(int)TERMFONT_NONE].gly[0].wx / 100);

+ c -= 32;

+ return(fonts[(int)TERMFONT_NONE].gly[(int)c].wx / 100);

}