/*
 * 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[] = "@(#)mvwin.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
#endif  /* not lint */

#include        "curses.ext"

/*
 * relocate the starting position of a window
 */

int
mvwin(WINDOW *win, int by, int bx)
{
        WINDOW  *orig;
        int     dy, dx;

        if (by + win->_maxy > LINES || bx + win->_maxx > COLS)
                return (ERR);
        dy = by - win->_begy;
        dx = bx - win->_begx;
        orig = win->_orig;
        if (orig == NULL) {
                orig = win;
                do {
                        win->_begy += dy;
                        win->_begx += dx;
                        _swflags_(win);
                        win = win->_nextp;
                } while (win != orig);
        } else {
                if (by < orig->_begy || win->_maxy + dy > orig->_maxy)
                        return (ERR);
                if (bx < orig->_begx || win->_maxx + dx > orig->_maxx)
                        return (ERR);
                win->_begy = (short)by;
                win->_begx = (short)bx;
                _swflags_(win);
                _set_subwin_(orig, win);
        }
        (void) touchwin(win);
        return (OK);
}