/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1997, by Sun Mircrosystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.4 */
/*LINTLIBRARY*/
#include <sys/types.h>
#include "private.h"
/* Make sure top is not within a page of the end of the menu */
void
_chk_top(MENU *m, int *top, ITEM *current)
{
if (Y(current) < *top) {
*top = Y(current);
}
if (Y(current) >= *top + Height(m)) {
*top = Y(current) - Height(m) + 1;
}
}
/*
* This routine makes sure top is in the correct position
* relative to current. It is only used when current is
* explicitly set.
*/
void
_chk_current(MENU *m, int *top, ITEM *current)
{
if (Y(current) < *top) {
*top = Y(current);
}
if (Y(current) >= *top + Height(m)) {
*top = min(Y(current), Rows(m) - Height(m));
}
}