1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
23*0Sstevel@tonic-gate /* All Rights Reserved */
24*0Sstevel@tonic-gate
25*0Sstevel@tonic-gate
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate * Copyright (c) 1997, by Sun Mircrosystems, Inc.
28*0Sstevel@tonic-gate * All rights reserved.
29*0Sstevel@tonic-gate */
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.4 */
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate /*LINTLIBRARY*/
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate #include <sys/types.h>
36*0Sstevel@tonic-gate #include "private.h"
37*0Sstevel@tonic-gate
38*0Sstevel@tonic-gate /* Make sure top is not within a page of the end of the menu */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate void
_chk_top(MENU * m,int * top,ITEM * current)41*0Sstevel@tonic-gate _chk_top(MENU *m, int *top, ITEM *current)
42*0Sstevel@tonic-gate {
43*0Sstevel@tonic-gate if (Y(current) < *top) {
44*0Sstevel@tonic-gate *top = Y(current);
45*0Sstevel@tonic-gate }
46*0Sstevel@tonic-gate if (Y(current) >= *top + Height(m)) {
47*0Sstevel@tonic-gate *top = Y(current) - Height(m) + 1;
48*0Sstevel@tonic-gate }
49*0Sstevel@tonic-gate }
50*0Sstevel@tonic-gate
51*0Sstevel@tonic-gate /*
52*0Sstevel@tonic-gate * This routine makes sure top is in the correct position
53*0Sstevel@tonic-gate * relative to current. It is only used when current is
54*0Sstevel@tonic-gate * explicitly set.
55*0Sstevel@tonic-gate */
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate void
_chk_current(MENU * m,int * top,ITEM * current)58*0Sstevel@tonic-gate _chk_current(MENU *m, int *top, ITEM *current)
59*0Sstevel@tonic-gate {
60*0Sstevel@tonic-gate if (Y(current) < *top) {
61*0Sstevel@tonic-gate *top = Y(current);
62*0Sstevel@tonic-gate }
63*0Sstevel@tonic-gate if (Y(current) >= *top + Height(m)) {
64*0Sstevel@tonic-gate *top = min(Y(current), Rows(m) - Height(m));
65*0Sstevel@tonic-gate }
66*0Sstevel@tonic-gate }
67