Annotation of src/usr.bin/window/wwcursor.c, Revision 1.1.1.1
1.1 deraadt 1: /* $NetBSD: wwcursor.c,v 1.3 1995/09/28 10:35:19 tls 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. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: */
38:
39: #ifndef lint
40: #if 0
41: static char sccsid[] = "@(#)wwcursor.c 8.1 (Berkeley) 6/6/93";
42: #else
43: static char rcsid[] = "$NetBSD: wwcursor.c,v 1.3 1995/09/28 10:35:19 tls Exp $";
44: #endif
45: #endif /* not lint */
46:
47: #include "ww.h"
48:
49: wwcursor(w, on)
50: register struct ww *w;
51: {
52: register char *win;
53:
54: if (on) {
55: if (w->ww_hascursor)
56: return;
57: w->ww_hascursor = 1;
58: } else {
59: if (!w->ww_hascursor)
60: return;
61: w->ww_hascursor = 0;
62: }
63: if (wwcursormodes != 0) {
64: win = &w->ww_win[w->ww_cur.r][w->ww_cur.c];
65: *win ^= wwcursormodes;
66: if (w->ww_cur.r < w->ww_i.t || w->ww_cur.r >= w->ww_i.b
67: || w->ww_cur.c < w->ww_i.l || w->ww_cur.c >= w->ww_i.r)
68: return;
69: if (wwsmap[w->ww_cur.r][w->ww_cur.c] == w->ww_index) {
70: if (*win == 0)
71: w->ww_nvis[w->ww_cur.r]++;
72: else if (*win == wwcursormodes)
73: w->ww_nvis[w->ww_cur.r]--;
74: wwns[w->ww_cur.r][w->ww_cur.c].c_m ^= wwcursormodes;
75: wwtouched[w->ww_cur.r] |= WWU_TOUCHED;
76: }
77: }
78: }
79:
80: wwsetcursormodes(new)
81: register new;
82: {
83: register i;
84: register struct ww *w;
85: register old = wwcursormodes;
86:
87: new &= wwavailmodes;
88: if (new == wwcursormodes)
89: return;
90: for (i = 0; i < NWW; i++)
91: if (wwindex[i] != 0 && (w = wwindex[i])->ww_hascursor) {
92: wwcursor(w, 0);
93: wwcursormodes = new;
94: wwcursor(w, 1);
95: wwcursormodes = old;
96: }
97: wwcursormodes = new;
98: }