OpenSolaris_b135/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.
 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

/*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);
}