1 /* $NetBSD: curs_set.c,v 1.10 2011/03/30 09:47:02 blymn 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 1.10 2011/03/30 09:47:02 blymn 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 #ifdef DEBUG
57 __CTRACE(__CTRACE_MISC,
58 "curs_set: invisible\n");
59 #endif
60 _cursesi_screen->old_mode = 0;
61 tputs(cursor_invisible, 0, __cputchar);
62 fflush(_cursesi_screen->outfd);
63 return old_one;
64 }
65 break;
66
67 case 1: /* normal */
68 if (cursor_normal != NULL) {
69 #ifdef DEBUG
70 __CTRACE(__CTRACE_MISC, "curs_set: normal\n");
71 #endif
72 _cursesi_screen->old_mode = 1;
73 tputs(cursor_normal, 0, __cputchar);
74 fflush(_cursesi_screen->outfd);
75 return old_one;
76 }
77 break;
78
79 case 2: /* high visibility */
80 if (cursor_visible != NULL) {
81 #ifdef DEBUG
82 __CTRACE(__CTRACE_MISC,
83 "curs_set: high vis\n");
84 #endif
85 _cursesi_screen->old_mode = 2;
86 tputs(cursor_visible, 0, __cputchar);
87 fflush(_cursesi_screen->outfd);
88 return old_one;
89 }
90 break;
91
92 default:
93 break;
94 }
95
96 return ERR;
97 }
98
99 /*
100 * __restore_cursor_vis --
101 * Restore the old cursor visibility.
102 */
103 void
__restore_cursor_vis(void)104 __restore_cursor_vis(void)
105 {
106 curs_set(_cursesi_screen->old_mode);
107 }
108
109