/*
 * 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) 1995-1998 by Sun Microsystems, Inc.
 * All rights reserved.
 */

/* LINTLIBRARY */

/*
 * wsyncdn.c
 *
 * XCurses Library
 *
 * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
 *
 */

#if M_RCSID
#ifndef lint
static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/wsyncdn.c 1.1 "
"1995/06/21 20:04:26 ant Exp $";
#endif
#endif

#include <private.h>

static void
syncdown(WINDOW *p, WINDOW *w)
{
        int     y, py;

        if (p == NULL)
                return;

        syncdown(p->_parent, p);

        for (py = w->_begy - p->_begy, y = 0; y < w->_maxy; ++y, ++py) {
                if (0 <= p->_last[py]) {
                        w->_first[y] = p->_first[py] - w->_begx;
                        w->_last[y] = p->_last[py] - w->_begx;
                }
        }
}

void
wsyncdown(WINDOW *w)
{
        syncdown(w->_parent, w);
}