/*
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
/*        All Rights Reserved   */

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

/*LINTLIBRARY*/

#ifndef lint
static char
sccsid[] = "@(#)id_subwins.c 1.3 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
#endif  /* not lint */

#include        "curses.ext"

/*
 * _id_subwins:
 *      Re-sync the pointers to _y for all the subwindows.
 */

void
_id_subwins(WINDOW *orig)
{
        WINDOW  *win;
        int     realy;
        int     y, oy;

        realy = orig->_begy + orig->_cury;
        for (win = orig->_nextp; win != orig; win = win->_nextp) {
                /*
                 * If the window ends before our current position,
                 * don't need to do anything.
                 */
                if (win->_begy + win->_maxy <= realy)
                        continue;

                oy = orig->_cury;
                for (y = realy - win->_begy; y < win->_maxy; y++, oy++)
                        win->_y[y] = &orig->_y[oy][win->_ch_off];
        }
}