touched.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) 1995-1998 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/* LINTLIBRARY */
30
31/*
32 * touched.c
33 *
34 * XCurses Library
35 *
36 * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
37 *
38 */
39
40#if M_RCSID
41#ifndef lint
42static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/touched.c 1.2 "
43"1995/06/15 18:42:55 ant Exp $";
44#endif
45#endif
46
47#include <private.h>
48
49/*
50 * Return true if line has been touched.  See wtouchln().
51 *
52 *	touched 	0 <= _first[y] <= _last[y] <= _maxx
53 * 	untouched	_last[y] < 0 < _maxx <= _first[y].
54 */
55#undef is_linetouched
56
57bool
58is_linetouched(WINDOW *w, int y)
59{
60	return (0 <= w->_last[y]);
61}
62
63#undef is_wintouched
64
65bool
66is_wintouched(WINDOW *w)
67{
68	int	y, value;
69
70	for (y = 0; y < w->_maxy; ++y)
71		if ((value = (0 <= w->_last[y])) != 0)
72			break;
73
74	return (value);
75}
76