1 /* @(#)wwlabel.c 8.1 (Berkeley) 6/6/93 */
2 /* $NetBSD: wwlabel.c,v 1.8 2009/04/14 08:50:06 lukem Exp $ */
3
4 /*
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "ww.h"
37 #include "char.h"
38
39 /*
40 * Label window w on f,
41 * at 1 line above w and 'where' columns from it's left edge.
42 * Gross, but it works.
43 */
44 void
wwlabel(struct ww * w,struct ww * f,int where,char * l,int mode)45 wwlabel(struct ww *w, struct ww *f, int where, char *l, int mode)
46 {
47 int row;
48 int j;
49 int jj;
50 char *win;
51 union ww_char *buf;
52 union ww_char *ns;
53 char *fmap;
54 unsigned char *smap;
55 char touched;
56 const char *p;
57
58 if (f->ww_fmap == 0)
59 return;
60
61 row = w->ww_w.t - 1;
62 if (row < f->ww_i.t || row >= f->ww_i.b)
63 return;
64 win = f->ww_win[row];
65 buf = f->ww_buf[row];
66 fmap = f->ww_fmap[row];
67 ns = wwns[row];
68 smap = wwsmap[row];
69 touched = wwtouched[row];
70 mode <<= WWC_MSHIFT;
71
72 jj = MIN(w->ww_i.r, f->ww_i.r);
73 j = w->ww_i.l + where;
74 while (j < jj && *l)
75 for (p = unctrl(*l++); j < jj && *p; j++, p++) {
76 /* can't label if not already framed */
77 if (win[j] & WWM_GLS)
78 continue;
79 if (smap[j] != f->ww_index)
80 buf[j].c_w = mode | *p;
81 else {
82 ns[j].c_w = (buf[j].c_w = mode | *p)
83 ^ win[j] << WWC_MSHIFT;
84 touched |= WWU_TOUCHED;
85 }
86 fmap[j] |= WWF_LABEL;
87 }
88 wwtouched[row] = touched;
89 }
90