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authorKristaps Dzonsons <kristaps@bsd.lv>2010-06-30 12:27:55 +0000
committerKristaps Dzonsons <kristaps@bsd.lv>2010-06-30 12:27:55 +0000
commit7124f05f10769bae30b3b76cc9d89f104c9e2f0c (patch)
treea5ce0023a6e63236e0551aaddbf4312638683d82 /term_ascii.c
parent66db27cbc1171f6264ee87392d5a74841a0eae40 (diff)
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Move term_hspan() calculation into the output devices, where it belongs.
Diffstat (limited to 'term_ascii.c')
-rw-r--r--term_ascii.c65
1 files changed, 57 insertions, 8 deletions
diff --git a/term_ascii.c b/term_ascii.c
index 3ab625a2..7c263cda 100644
--- a/term_ascii.c
+++ b/term_ascii.c
@@ -1,4 +1,4 @@
-/* $Id: term_ascii.c,v 1.6 2010/06/25 19:50:23 kristaps Exp $ */
+/* $Id: term_ascii.c,v 1.7 2010/06/30 12:27:55 kristaps Exp $ */
/*
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
*
@@ -30,12 +30,14 @@
#include "term.h"
#include "main.h"
-static void ascii_endline(struct termp *);
-static void ascii_letter(struct termp *, char);
-static void ascii_begin(struct termp *);
+static size_t ascii_hspan(const struct termp *,
+ const struct roffsu *);
+static size_t ascii_width(const struct termp *, char);
static void ascii_advance(struct termp *, size_t);
+static void ascii_begin(struct termp *);
static void ascii_end(struct termp *);
-static size_t ascii_width(const struct termp *, char);
+static void ascii_endline(struct termp *);
+static void ascii_letter(struct termp *, char);
void *
@@ -51,12 +53,13 @@ ascii_alloc(char *outopts)
p->tabwidth = 5;
p->defrmargin = 78;
- p->type = TERMTYPE_CHAR;
- p->letter = ascii_letter;
+ p->advance = ascii_advance;
p->begin = ascii_begin;
p->end = ascii_end;
p->endline = ascii_endline;
- p->advance = ascii_advance;
+ p->hspan = ascii_hspan;
+ p->letter = ascii_letter;
+ p->type = TERMTYPE_CHAR;
p->width = ascii_width;
toks[0] = "width";
@@ -140,3 +143,49 @@ ascii_advance(struct termp *p, size_t len)
for (i = 0; i < len; i++)
putchar(' ');
}
+
+
+/* ARGSUSED */
+static size_t
+ascii_hspan(const struct termp *p, const struct roffsu *su)
+{
+ double r;
+
+ /*
+ * Approximate based on character width. These are generated
+ * entirely by eyeballing the screen, but appear to be correct.
+ */
+
+ switch (su->unit) {
+ case (SCALE_CM):
+ r = 4 * su->scale;
+ break;
+ case (SCALE_IN):
+ r = 10 * su->scale;
+ break;
+ case (SCALE_PC):
+ r = (10 * su->scale) / 6;
+ break;
+ case (SCALE_PT):
+ r = (10 * su->scale) / 72;
+ break;
+ case (SCALE_MM):
+ r = su->scale / 1000;
+ break;
+ case (SCALE_VS):
+ r = su->scale * 2 - 1;
+ break;
+ default:
+ r = su->scale;
+ break;
+ }
+
+ /* Explicitly disallow negative values. */
+
+ if (r < 0.0)
+ r = 0.0;
+
+ return((size_t)/* LINTED */
+ r);
+}
+