/*
 * Copyright 2001 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[] = "@(#)insertln.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
#endif /* not lint */

#include        "curses.ext"
#include        <string.h>

/*
 *      This routine performs an insert-line on the window, leaving
 * (_cury,_curx) unchanged.
 */

int
winsertln(WINDOW *win)
{
        char    *temp;
        int     y;
        char    *end;

#ifdef  DEBUG
        fprintf(outf, "INSERTLN(%0.2o)\n", win);
#endif
        if (win->_orig == NULL)
                temp = win->_y[win->_maxy - 1];
        for (y = win->_maxy - 1; y > win->_cury; --y) {
                if (win->_orig == NULL)
                        win->_y[y] = win->_y[y - 1];
                else
                        (void) memmove(win->_y[y], win->_y[y-1], win->_maxx);
                (void) touchline(win, y, 0, win->_maxx - 1);
        }
        if (win->_orig == NULL)
                win->_y[y] = temp;
        else
                temp = win->_y[y];
        for (end = &temp[win->_maxx]; temp < end; )
                *temp++ = ' ';
        (void) touchline(win, y, 0, win->_maxx - 1);
        if (win->_orig == NULL)
                _id_subwins(win);
        return (OK);
}