xref: /titanic_50/usr/src/lib/libxcurses2/src/libc/xcurses/has.c (revision 8a3c961b6b8e22607c570d092514b791eb1519e9)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1995-1998 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /* LINTLIBRARY */
30 
31 /*
32  * has.c
33  *
34  * XCurses Library
35  *
36  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
37  *
38  */
39 
40 #if M_RCSID
41 #ifndef lint
42 static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/has.c 1.2 "
43 "1995/07/19 16:38:02 ant Exp $";
44 #endif
45 #endif
46 
47 #include <private.h>
48 
49 #undef has_colors
50 
51 bool
52 has_colors(void)
53 {
54 	bool value;
55 
56 	value = 0 < max_colors;
57 
58 	return (value);
59 }
60 
61 #undef has_ic
62 
63 bool
64 has_ic(void)
65 {
66 	bool value;
67 
68 	value = ((insert_character != NULL || parm_ich != NULL)	&&
69 		(delete_character != NULL || parm_dch != NULL)) ||
70 		(enter_insert_mode != NULL && exit_insert_mode);
71 
72 	return (value);
73 }
74 
75 #undef has_il
76 
77 bool
78 has_il(void)
79 {
80 	bool value;
81 
82 	value = ((insert_line != NULL || parm_insert_line != NULL) &&
83 		(delete_line != NULL || parm_delete_line != NULL)) ||
84 		change_scroll_region != NULL;
85 
86 	return (value);
87 }
88 
89 #undef can_change_color
90 
91 bool
92 can_change_color(void)
93 {
94 	bool value;
95 
96 	value = 2 < max_colors && can_change && initialize_color != NULL;
97 
98 	return (value);
99 }
100