BSD 4_3_Reno release
[unix-history] / usr / src / usr.bin / window / wwlabel.c
CommitLineData
60de5df9 1/*
46e9ea25
KB
2 * Copyright (c) 1983 Regents of the University of California.
3 * All rights reserved.
4 *
3dd3a9e5
KB
5 * This code is derived from software contributed to Berkeley by
6 * Edward Wang at The University of California, Berkeley.
7 *
1c15e888
C
8 * Redistribution and use in source and binary forms are permitted provided
9 * that: (1) source distributions retain this entire copyright notice and
10 * comment, and (2) distributions including binaries display the following
11 * acknowledgement: ``This product includes software developed by the
12 * University of California, Berkeley and its contributors'' in the
13 * documentation or other materials provided with the distribution and in
14 * all advertising materials mentioning features or use of this software.
15 * Neither the name of the University nor the names of its contributors may
16 * be used to endorse or promote products derived from this software without
17 * specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
19 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
60de5df9
EW
21 */
22
46e9ea25 23#ifndef lint
1c15e888 24static char sccsid[] = "@(#)wwlabel.c 3.17 (Berkeley) 6/6/90";
46e9ea25
KB
25#endif /* not lint */
26
e7fe89d1 27#include "ww.h"
0e64e422 28#include "char.h"
e7fe89d1 29
85af59e4
EW
30/*
31 * Label window w on f,
32 * at 1 line above w and 'where' columns from it's left edge.
33 * Gross, but it works.
34 */
35wwlabel(w, f, where, l, mode)
0896e17e 36struct ww *w;
85af59e4
EW
37struct ww *f;
38char *l;
e7fe89d1 39{
d069a508 40 int row;
85af59e4 41 register j;
d069a508 42 int jj;
85af59e4
EW
43 register char *win;
44 register union ww_char *buf;
45 register union ww_char *ns;
0896e17e 46 register char *fmap;
d069a508
EW
47 register char *smap;
48 char touched;
49 char *p;
e7fe89d1 50
2357b64e 51 if (f->ww_fmap == 0)
03e75950 52 return;
2357b64e 53
d069a508
EW
54 row = w->ww_w.t - 1;
55 if (row < f->ww_i.t || row >= f->ww_i.b)
03e75950 56 return;
d069a508
EW
57 win = f->ww_win[row];
58 buf = f->ww_buf[row];
59 fmap = f->ww_fmap[row];
60 ns = wwns[row];
61 smap = wwsmap[row];
62 touched = wwtouched[row];
63 mode <<= WWC_MSHIFT;
85af59e4 64
d069a508
EW
65 jj = MIN(w->ww_i.r, f->ww_i.r);
66 j = w->ww_i.l + where;
67 while (j < jj && *l)
68 for (p = unctrl(*l++); j < jj && *p; j++, p++) {
85af59e4 69 /* can't label if not already framed */
d069a508
EW
70 if (win[j] & WWM_GLS)
71 continue;
72 if (smap[j] != f->ww_index)
73 buf[j].c_w = mode | *p;
74 else {
75 ns[j].c_w = (buf[j].c_w = mode | *p)
76 ^ win[j] << WWC_MSHIFT;
04d70db4 77 touched |= WWU_TOUCHED;
0896e17e 78 }
d069a508 79 fmap[j] |= WWF_LABEL;
85af59e4 80 }
d069a508 81 wwtouched[row] = touched;
e7fe89d1 82}