/*
* 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"
/*
* This routine checks the supplied values against the values of
* current and top items. If a value has changed then one of
* terminate routines is called. Following the actual change of
* the value is the calling of the initialize routines.
*/
void
_affect_change(MENU *m, int newtop, ITEM *newcurrent)
{
ITEM *oldcur;
int topchange = FALSE, curchange = FALSE;
/* Call term and init routines if posted */
if (Posted(m)) {
/* If current has changed terminate the old item. */
if (newcurrent != Current(m)) {
Iterm(m);
curchange = TRUE;
}
/* If top has changed then call menu init function */
if (newtop != Top(m)) {
Mterm(m);
topchange = TRUE;
}
oldcur = Current(m);
Top(m) = newtop;
Current(m) = newcurrent;
if (topchange) {
/* Init the new page if top has changed */
Minit(m);
}
if (curchange) {
/* Unmark the old item and mark the new one */
_movecurrent(m, oldcur);
/* Init the new item if current changed */
Iinit(m);
}
/* If anything changed go change user's copy of menu */
if (topchange || curchange) {
_show(m);
} else {
_position_cursor(m);
}
} else {
/* Just change Top and Current if not posted */
Top(m) = newtop;
Current(m) = newcurrent;
}
}