root/usr/src/lib/libcurses/screen/slk_refresh.c
/*
 * 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 1997 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1988 AT&T */
/*        All Rights Reserved   */

/*
 * University Copyright- Copyright (c) 1982, 1986, 1988
 * The Regents of the University of California
 * All Rights Reserved
 *
 * University Acknowledgment- Portions of this document are derived from
 * software developed by the University of California, Berkeley, and its
 * contributors.
 */

/*LINTLIBRARY*/

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

/* Update the soft-label window. */

int
slk_refresh(void)
{
        if (_slk_update()) {
                return (wrefresh(SP->slk->_win));
        }
        return (0);
}

/* Update soft labels. Return TRUE if a window was updated. */

int
_slk_update(void)
{
        WINDOW  *win;
        SLK_MAP *slk;
        int     i;

        if ((slk = SP->slk) == NULL || (slk->_changed != TRUE))
                return (FALSE);

        win = slk->_win;
        for (i = 0; i < slk->_num; ++i)
                if (slk->_lch[i]) {
                        if (win)
                                (void) mvwaddstr(win, 0, slk->_labx[i],
                                    slk->_ldis[i]);
                        else
                                _PUTS(tparm_p2(plab_norm, i + 1,
                                    (long)slk->_ldis[i]), 1);

                        slk->_lch[i] = FALSE;
                }
        if (!win) {
                _PUTS(label_on, 1);
                /*
                 * Added an fflush because if application code calls a
                 * slk_refresh or a slk_noutrefresh
                 * and a doupdate nothing will get flushed since this
                 * information is not being kept in curscr or _virtscr.
                 */
                (void) fflush(SP->term_file);
        }

        slk->_changed = FALSE;

        return (win ? TRUE : FALSE);
}