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 1.9	*/
32 
33 /*LINTLIBRARY*/
34 
35 #include <sys/types.h>
36 #include "private.h"
37 
38 int
set_top_row(MENU * m,int top)39 set_top_row(MENU *m, int top)
40 {
41 	ITEM *current;
42 
43 	if (m) {
44 		if (Indriver(m)) {
45 			return (E_BAD_STATE);
46 		}
47 		if (!Items(m)) {
48 			return (E_NOT_CONNECTED);
49 		}
50 		if (top < 0 || top > Rows(m) - Height(m)) {
51 			return (E_BAD_ARGUMENT);
52 		}
53 		if (top != Top(m)) {
54 			/* Get linking information if not already there */
55 			if (LinkNeeded(m)) {
56 				_link_items(m);
57 			}
58 			/* Set current to toprow */
59 			current = IthItem(m, RowMajor(m) ? top * Cols(m) : top);
60 			Pindex(m) = 0;		/* Clear the pattern buffer */
61 			IthPattern(m, Pindex(m)) = '\0';
62 			_affect_change(m, top, current);
63 		}
64 	} else {
65 		return (E_BAD_ARGUMENT);
66 	}
67 	return (E_OK);
68 }
69 
70 int
top_row(MENU * m)71 top_row(MENU *m)
72 {
73 	if (m && Items(m) && IthItem(m, 0)) {
74 		return (Top(m));
75 	} else {
76 		return (-1);
77 	}
78 }
79