1 /* $NetBSD: curs_set.c,v 1.12 2021/09/06 07:45:48 rin Exp $ */
2
3 /*-
4 * Copyright (c) 1998-2000 Brett Lymn
5 * (blymn@baea.com.au, brett_lymn@yahoo.com.au)
6 * All rights reserved.
7 *
8 * This code has been donated to The NetBSD Foundation by the Author.
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. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 *
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 __RCSID("$NetBSD: curs_set.c,v 1.12 2021/09/06 07:45:48 rin Exp $");
35 #endif /* not lint */
36
37 #include "curses.h"
38 #include "curses_private.h"
39
40 /*
41 * curs_set --
42 * Set the visibility of the cursor, 0 means invisible, 1 means normal
43 * visibility and 2 means high visibility. Return the previous
44 * visibility iff the terminal supports the new visibility otherwise
45 * return ERR.
46 */
47 int
curs_set(int visibility)48 curs_set(int visibility)
49 {
50 int old_one;
51
52 old_one = _cursesi_screen->old_mode;
53 switch (visibility) {
54 case 0: /* invisible */
55 if (cursor_invisible != NULL) {
56 __CTRACE(__CTRACE_MISC,
57 "curs_set: invisible\n");
58 _cursesi_screen->old_mode = 0;
59 tputs(cursor_invisible, 0, __cputchar);
60 fflush(_cursesi_screen->outfd);
61 return old_one;
62 }
63 break;
64
65 case 1: /* normal */
66 if (cursor_normal != NULL) {
67 __CTRACE(__CTRACE_MISC, "curs_set: normal\n");
68 _cursesi_screen->old_mode = 1;
69 tputs(cursor_normal, 0, __cputchar);
70 fflush(_cursesi_screen->outfd);
71 return old_one;
72 }
73 break;
74
75 case 2: /* high visibility */
76 if (cursor_visible != NULL) {
77 __CTRACE(__CTRACE_MISC, "curs_set: high vis\n");
78 _cursesi_screen->old_mode = 2;
79 tputs(cursor_visible, 0, __cputchar);
80 fflush(_cursesi_screen->outfd);
81 return old_one;
82 }
83 break;
84
85 default:
86 break;
87 }
88
89 return ERR;
90 }
91
92 /*
93 * __restore_cursor_vis --
94 * Restore the old cursor visibility.
95 */
96 void
__restore_cursor_vis(void)97 __restore_cursor_vis(void)
98 {
99 curs_set(_cursesi_screen->old_mode);
100 }
101
102