root/usr/src/lib/libcurses/screen/wvline.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 2005 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"

int
wvline(WINDOW *win, chtype vertch, int num_chars)
{
        short   cury = win->_cury, curx = win->_curx;
        chtype  a, **fp = win->_y;
        short   *firstch = &(win->_firstch[cury]);
        short   *lastch = &(win->_lastch[cury]);

        if (num_chars <= 0)
                return (ERR);

        if (num_chars > win->_maxy - cury)
                num_chars = win->_maxy - cury;
        if (vertch == 0)
                vertch = ACS_VLINE;
        a = _ATTR(vertch);
        vertch = _WCHAR(win, vertch) | a;
        for (num_chars += cury; cury < num_chars; cury++, firstch++,
            lastch++) {
                fp[cury][curx] = vertch;
                if (curx < *firstch)
                        *firstch = curx;
                if (curx > *lastch)
                        *lastch = curx;
        }
        win->_flags |= _WINCHANGED;

        if (win->_sync)
                wsyncup(win);

        return (win->_immed ? wrefresh(win) : OK);
}