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