wattroff.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include "curses_inc.h"
int
wattroff(WINDOW *win, chtype a)
{
/* if attribute contains color information, but this is not a color */
/* terminal, or that color information doesn't match the one stored */
/* inside _attrs, ignore that information. */
if (((a & A_COLOR) && (cur_term->_pairs_tbl == NULL)) ||
((a & A_COLOR) != (win->_attrs & A_COLOR)))
a &= ~A_COLOR;
if ((a & A_ATTRIBUTES) == A_NORMAL)
return (1);
/* turn off the attributes */
win->_attrs &= ~a & A_ATTRIBUTES;
/* if background contains color information different from the one */
/* we have just turned off, turn that color on. (Reason: the */
/* color we have just turned off was set by wattron(), so the */
/* back-ground color was blocked. However, now the background */
/* color can be seen. */
if ((a & A_COLOR) && ((a & A_COLOR) != (win->_bkgd & A_COLOR)))
win->_attrs |= (win->_bkgd & A_COLOR);
return (1);
}