xref: /illumos-gate/usr/src/lib/libeti/menu/common/visible.c (revision e3ae4b35c024af1196582063ecee3ab79367227d)
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 /*LINTLIBRARY*/
32 
33 #include <sys/types.h>
34 #include "private.h"
35 
36 /* Check to see if an item is being displayed on the current page */
37 
38 int
39 item_visible(ITEM *i)
40 {
41 	int bottom;
42 	MENU *m;
43 
44 	if (!i || !Imenu(i)) {
45 		return (FALSE);
46 	}
47 	m = Imenu(i);
48 	if (Posted(m)) {
49 		bottom = Top(m) + Height(m) - 1;
50 		if (Y(i) >= Top(m) && Y(i) <= bottom) {
51 			return (TRUE);
52 		}
53 	}
54 	return (FALSE);
55 }
56