/*
* 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 by Sun Microsystems, Inc.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include "curses_inc.h"
int
wmoveprevch(WINDOW *win)
/*
* wmoveprevch --- moves the cursor back to the previous char of char
* cursor is currently on. This is used to move back over a multi-column
* character. When the cursor is on a character at the left-most
* column, the cursor will stay there.
*/
{
chtype *_yy;
short x;
(void) wadjcurspos(win);
x = win->_curx;
if (x == 0) /* Can't back up any more. */
return (ERR);
_yy = win->_y[win->_cury];
--x;
while ((x > 0) && (ISCBIT(_yy[x])))
--x;
win->_curx = x;
win->_flags |= _WINMOVED;
return (win->_immed ? wrefresh(win): OK);
}