xref: /illumos-gate/usr/src/lib/libxcurses2/src/libc/xcurses/wtouchln.c (revision ddb365bfc9e868ad24ccdcb0dc91af18b10df082)
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) 1995-1999 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 /* LINTLIBRARY */
28 
29 /*
30  * wtouchln.c
31  *
32  * XCurses Library
33  *
34  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
35  *
36  */
37 
38 #ifdef M_RCSID
39 #ifndef lint
40 static char rcsID[] =
41 "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/"
42 "libxcurses/src/libc/xcurses/rcs/wtouchln.c 1.6 1998/06/03 12:57:09 "
43 "cbates Exp $";
44 #endif
45 #endif
46 
47 #include <private.h>
48 
49 /*
50  * Given a window, start from line y, and mark n lines either as touched
51  * or untouched since the last call to wrefresh().
52  */
53 int
54 wtouchln(WINDOW *w, int y, int n, int bf)
55 {
56 	int	first, last;
57 
58 	first = bf ? 0 : w->_maxx;
59 	last = bf ? w->_maxx : -1;
60 
61 	for (; y < w->_maxy && 0 < n; ++y, --n) {
62 		w->_first[y] = (short) first;
63 		w->_last[y] = (short) last;
64 	}
65 
66 	return (OK);
67 }
68