/*
 * 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.
 */

/*LINTLIBRARY*/

#include <sys/types.h>
#include "private.h"

/* Position the cursor in the user's subwindow. */

void
_position_cursor(MENU *m)
{
        int y, x;
        WINDOW *us, *uw;

        if (Posted(m)) {
                /* x and y represent the position in our subwindow */
                y = Y(Current(m)) - Top(m);
                x = X(Current(m))*(Itemlen(m)+1);

                if (ShowMatch(m)) {
                        if (Pindex(m)) {
                                x += Pindex(m) + Marklen(m) - 1;
                        }
                }

                uw = UW(m);
                us = US(m);
                (void) wmove(us, y, x);

                if (us != uw) {
                        wcursyncup(us);
                        wsyncup(us);
                        /*
                         * The next statement gets around some aberrant
                         * behavior in curses. The subwindow is never being
                         * untouched and this results in the parent window
                         * being touched every time a syncup is done.
                         */
                        (void) untouchwin(us);
                }
        }
}

int
pos_menu_cursor(MENU *m)
{
        if (!m) {
                return (E_BAD_ARGUMENT);
        }
        if (!Posted(m)) {
                return (E_NOT_POSTED);
        }
        _position_cursor(m);
        return (E_OK);
}