xref: /illumos-gate/usr/src/lib/libxcurses/src/libc/xcurses/wchgat.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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, by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  * wchgat.c
31  *
32  * XCurses Library
33  *
34  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
35  *
36  */
37 
38 #if M_RCSID
39 #ifndef lint
40 static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/wchgat.c 1.3 1995/06/21 20:30:57 ant Exp $";
41 #endif
42 #endif
43 
44 #include <private.h>
45 
46 int
47 wchgat(WINDOW *w, int n, attr_t at, short co, const void *opts)
48 {
49 	int i, x;
50 	cchar_t *cp;
51 
52 #ifdef M_CURSES_TRACE
53 	__m_trace("wchgat(%p, %d, %x, %d, %p)", w, n, at, co, opts);
54 #endif
55 
56 	if (n < 0)
57 		n = w->_maxx;
58 
59 	cp = &w->_line[w->_cury][w->_maxx];
60 
61 	if (!cp->_f)
62 		return __m_return_code("wchgat", ERR);
63 
64 	for (i = 0, x = w->_curx; x < w->_maxx; ++x, ++cp) {
65 		if (cp->_f && n <= i++)
66 			break;
67 
68 		cp->_co = co;
69 		cp->_at = at;
70 	}
71 
72 	WSYNC(w);
73 
74 	return __m_return_code("wchgat", WFLUSH(w));
75 }
76