1 /* $OpenBSD: wwcursor.c,v 1.6 2003/06/03 02:56:23 millert Exp $ */
2 /* $NetBSD: wwcursor.c,v 1.4 1996/02/08 20:45:08 mycroft 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 #ifndef lint
37 #if 0
38 static char sccsid[] = "@(#)wwcursor.c 8.1 (Berkeley) 6/6/93";
39 #else
40 static char rcsid[] = "$OpenBSD: wwcursor.c,v 1.6 2003/06/03 02:56:23 millert Exp $";
41 #endif
42 #endif /* not lint */
43
44 #include "ww.h"
45
46 wwcursor(w, on)
47 struct ww *w;
48 {
49 char *win;
50
51 if (on) {
52 if (ISSET(w->ww_wflags, WWW_HASCURSOR))
53 return;
54 SET(w->ww_wflags, WWW_HASCURSOR);
55 } else {
56 if (!ISSET(w->ww_wflags, WWW_HASCURSOR))
57 return;
58 CLR(w->ww_wflags, WWW_HASCURSOR);
59 }
60 if (wwcursormodes != 0) {
61 win = &w->ww_win[w->ww_cur.r][w->ww_cur.c];
62 *win ^= wwcursormodes;
63 if (w->ww_cur.r < w->ww_i.t || w->ww_cur.r >= w->ww_i.b
64 || w->ww_cur.c < w->ww_i.l || w->ww_cur.c >= w->ww_i.r)
65 return;
66 if (wwsmap[w->ww_cur.r][w->ww_cur.c] == w->ww_index) {
67 if (*win == 0)
68 w->ww_nvis[w->ww_cur.r]++;
69 else if (*win == wwcursormodes)
70 w->ww_nvis[w->ww_cur.r]--;
71 wwns[w->ww_cur.r][w->ww_cur.c].c_m ^= wwcursormodes;
72 wwtouched[w->ww_cur.r] |= WWU_TOUCHED;
73 }
74 }
75 }
76
wwsetcursormodes(new)77 wwsetcursormodes(new)
78 int new;
79 {
80 int i;
81 struct ww *w;
82 int old = wwcursormodes;
83
84 new &= wwavailmodes;
85 if (new == wwcursormodes)
86 return;
87 for (i = 0; i < NWW; i++)
88 if (wwindex[i] != 0 &&
89 ISSET((w = wwindex[i])->ww_wflags, WWW_HASCURSOR)) {
90 wwcursor(w, 0);
91 wwcursormodes = new;
92 wwcursor(w, 1);
93 wwcursormodes = old;
94 }
95 wwcursormodes = new;
96 }
97