1/*	$NetBSD: wwcursor.c,v 1.6 2002/06/14 01:06:58 wiz Exp $	*/
2
3/*
4 * Copyright (c) 1983, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Edward Wang at The University of California, Berkeley.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <sys/cdefs.h>
36#ifndef lint
37#if 0
38static char sccsid[] = "@(#)wwcursor.c	8.1 (Berkeley) 6/6/93";
39#else
40__RCSID("$NetBSD: wwcursor.c,v 1.6 2002/06/14 01:06:58 wiz Exp $");
41#endif
42#endif /* not lint */
43
44#include "ww.h"
45
46void
47wwcursor(struct ww *w, int on)
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
77void
78wwsetcursormodes(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