107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
/* $NetBSD: underscore.c,v 1.6 2000/12/19 21:34:24 jdc Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Julian Coleman.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: underscore.c,v 1.6 2000/12/19 21:34:24 jdc Exp $");
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#endif /* not lint */
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#include "curses.h"
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#include "curses_private.h"
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#ifndef _CURSES_USE_MACROS
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/*
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* underscore
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* Enter underscore mode on stdscr.
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*/
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int
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underscore(void)
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{
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return wunderscore(stdscr);
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}
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/*
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* underend --
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* Exit underscore mode on stdscr.
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*/
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int
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underend(void)
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{
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return wunderend(stdscr);
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}
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#endif
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/*
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* wunderscore
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* Enter underscore mode.
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*/
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int
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wunderscore(WINDOW *win)
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{
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/* If can underscore, set the screen underscore bit. */
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if ((__tc_us != NULL && __tc_ue != NULL) || __tc_uc != NULL) {
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#ifdef DEBUG
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__CTRACE("wunderscore\n");
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#endif
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win->wattr |= __UNDERSCORE;
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if ((win->wattr & __COLOR) && (__nca & __UNDERSCORE)) {
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win->wattr &= ~__COLOR;
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}
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}
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return (1);
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}
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/*
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* wunderend --
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* Exit underscore mode.
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*/
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int
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wunderend(WINDOW *win)
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{
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if (__tc_ue != NULL) {
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#ifdef DEBUG
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__CTRACE("wunderuend\n");
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#endif
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win->wattr &= ~__UNDERSCORE;
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}
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return 1;
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}
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