xref: /titanic_41/usr/src/lib/libeti/menu/common/visible.c (revision fcf3ce441efd61da9bb2884968af01cb7c1452cc)
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 /*	Copyright (c) 1988 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 /*
27  * Copyright (c) 1997, by Sun Mircrosystems, Inc.
28  * All rights reserved.
29  */
30 
31 #pragma	ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.5	*/
32 
33 /*LINTLIBRARY*/
34 
35 #include <sys/types.h>
36 #include "private.h"
37 
38 /* Check to see if an item is being displayed on the current page */
39 
40 int
41 item_visible(ITEM *i)
42 {
43 	int bottom;
44 	MENU *m;
45 
46 	if (!i || !Imenu(i)) {
47 		return (FALSE);
48 	}
49 	m = Imenu(i);
50 	if (Posted(m)) {
51 		bottom = Top(m) + Height(m) - 1;
52 		if (Y(i) >= Top(m) && Y(i) <= bottom) {
53 			return (TRUE);
54 		}
55 	}
56 	return (FALSE);
57 }
58