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 1997 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1988 AT&T	*/
28 /*	  All Rights Reserved	*/
29 
30 /*
31  * University Copyright- Copyright (c) 1982, 1986, 1988
32  * The Regents of the University of California
33  * All Rights Reserved
34  *
35  * University Acknowledgment- Portions of this document are derived from
36  * software developed by the University of California, Berkeley, and its
37  * contributors.
38  */
39 
40 #pragma ident	"%Z%%M%	%I%	%E% SMI"
41 
42 /*LINTLIBRARY*/
43 
44 #include	<sys/types.h>
45 #include	<string.h>
46 #include	<unistd.h>
47 #include	"curses_inc.h"
48 
49 /*
50  * Set a soft label.
51  *
52  * n:	label number
53  * lab:	the string
54  * f:	0, 1, 2 for left, center, right-justification
55  */
56 
57 int
slk_set(int n,char * lab,int f)58 slk_set(int n, char *lab, int f)
59 {
60 	SLK_MAP	*slk = SP->slk;
61 	int	len, slklen = slk->_len, left;
62 	char		*cp, nlab[LABLEN + 1];
63 
64 	if ((slk == NULL) || f < 0 || f > 2 || n < 1 || n > slk->_num)
65 		return (ERR);
66 
67 	/* 0-indexing internally */
68 	n--;
69 
70 	if (lab == NULL) {
71 		lab = "";
72 
73 	} else {
74 		/* chop lengthy label */
75 		/* LINTED */
76 		if ((len = (int) strlen(lab)) > slklen)
77 			lab[len = slklen] = '\0';
78 	}
79 
80 	/* make the new display label */
81 	for (cp = nlab + slklen - 1; cp >= nlab; cp--)
82 		*cp = ' ';
83 	nlab[slklen] = '\0';
84 	if (f == 0)
85 		left = 0;
86 	else
87 		left = (slklen - len) / ((f == 1) ? 2 : 1);
88 
89 	(void) memcpy(nlab + left, lab, len);
90 
91 	if (strcmp(slk->_ldis[n], nlab) != 0) {
92 		(void) memcpy(slk->_lval[n], lab, len + 1);
93 		(void) memcpy(slk->_ldis[n], nlab, slklen + 1);
94 		slk->_changed = slk->_lch[n] = TRUE;
95 	}
96 
97 	return (OK);
98 }
99