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/*
trf-nwid.c - routine to try to figure out the width of an en
in the current point size. This is used by the table writing
code in an attempt to get cells the right width.
If you're trying to figure out widths for another version of
troff, run nwidth.trf through it and look at the result.
*/
# include <stdio.h>
# include <sys/types.h>
# include "rtf.h"
# include "rtf2troff.h"
typedef struct EnVal EnVal;
struct EnVal
{
int size;
double width;
};
# define uXroff 300.0 /* xroff dpi */
EnVal enXroff [] =
{
3, 9./uXroff, /* xroff uses 4 */
4, 9./uXroff,
5, 11./uXroff,
6, 13./uXroff,
7, 16./uXroff,
8, 18./uXroff,
9, 20./uXroff,
10, 22./uXroff,
11, 25./uXroff,
12, 27./uXroff,
13, 29./uXroff,
14, 31./uXroff,
15, 34./uXroff,
16, 36./uXroff,
17, 36./uXroff, /* xroff uses 16 */
18, 40./uXroff,
19, 40./uXroff, /* xroff uses 18 */
20, 45./uXroff,
22, 45./uXroff, /* xroff uses 20 */
24, 54./uXroff,
26, 54./uXroff, /* xroff uses 24
28, 63./uXroff,
30, 67./uXroff,
32, 67./uXroff, /* xroff uses 0?!? Use 30 instead */
34, 67./uXroff, /* xroff uses 0?!? Use 30 instead */
36, 81./uXroff,
38, 81./uXroff, /* xroff uses 36 */
40, 81./uXroff, /* xroff uses 36
44, 107./uXroff, /* xroff uses 48 */
48, 107./uXroff,
72, 107./uXroff, /* xroff uses 48 */
0, 50./uXroff /* 0 = end of table; 50 = default size */
};
static double EVTabLookup ();
static double EVTabLookup (tab)
EnVal tab[];
{
int ps = ics->fontSize;
EnVal *p;
for (p = tab; p->size != 0; p++)
{
if (p->size >= ps)
return (p->width);
}
return (p->width); /* use last width as default */
}
double EnWidth ()
{
/*
Our tpscript uses 720 as resolution base, and character
sizes are 5 times the point size.
*/
if (tvers == PSTROFF)
return (ics->fontSize * 5. / 720.);
/* default - covers troff and xroff */
return (EVTabLookup (enXroff));
}
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