slk_set.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include <string.h>
#include <unistd.h>
#include "curses_inc.h"
/*
* Set a soft label.
*
* n: label number
* lab: the string
* f: 0, 1, 2 for left, center, right-justification
*/
int
slk_set(int n, char *lab, int f)
{
SLK_MAP *slk = SP->slk;
int len, slklen = slk->_len, left;
char *cp, nlab[LABLEN + 1];
if ((slk == NULL) || f < 0 || f > 2 || n < 1 || n > slk->_num)
return (ERR);
/* 0-indexing internally */
n--;
if (lab == NULL) {
lab = "";
} else {
/* chop lengthy label */
/* LINTED */
if ((len = (int) strlen(lab)) > slklen)
lab[len = slklen] = '\0';
}
/* make the new display label */
for (cp = nlab + slklen - 1; cp >= nlab; cp--)
*cp = ' ';
nlab[slklen] = '\0';
if (f == 0)
left = 0;
else
left = (slklen - len) / ((f == 1) ? 2 : 1);
(void) memcpy(nlab + left, lab, len);
if (strcmp(slk->_ldis[n], nlab) != 0) {
(void) memcpy(slk->_lval[n], lab, len + 1);
(void) memcpy(slk->_ldis[n], nlab, slklen + 1);
slk->_changed = slk->_lch[n] = TRUE;
}
return (OK);
}