NetBSD/lib/libcurses/attributes.c

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/* $NetBSD: attributes.c,v 1.8 2000/05/11 22:44:45 jdc Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Julian Coleman.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: attributes.c,v 1.8 2000/05/11 22:44:45 jdc Exp $");
#endif /* not lint */
#include "curses.h"
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#include "curses_private.h"
#ifndef _CURSES_USE_MACROS
/*
* attron --
* Test and set attributes on stdscr
*/
int
attron(int attr)
{
return wattron(stdscr, attr);
}
/*
* attroff --
* Test and unset attributes on stdscr.
*/
int
attroff(int attr)
{
return wattroff(stdscr, attr);
}
/*
* attrset --
* Set specific attribute modes.
* Unset others. On stdscr.
*/
int
attrset(int attr)
{
return wattrset(stdscr, attr);
}
#endif
/*
* wattron --
* Test and set attributes.
*
* Modes are blinking, bold (extra bright), dim (half-bright),
* blanking (invisible), protected and reverse video
*/
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int
wattron(WINDOW *win, int attr)
{
#ifdef DEBUG
__CTRACE ("wattron: win %0.2o, attr %08x\n", win, attr);
#endif
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/* If can enter modes, set the relevent attribute bits. */
if (ME != NULL) {
if ((attr_t) attr & __BLINK && MB != NULL)
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win->wattr |= __BLINK;
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if ((attr_t) attr & __BOLD && MD != NULL)
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win->wattr |= __BOLD;
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if ((attr_t) attr & __DIM && MH != NULL)
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win->wattr |= __DIM;
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if ((attr_t) attr & __BLANK && MK != NULL)
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win->wattr |= __BLANK;
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if ((attr_t) attr & __PROTECT && MP != NULL)
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win->wattr |= __PROTECT;
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if ((attr_t) attr & __REVERSE && MR != NULL)
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win->wattr |= __REVERSE;
}
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if ((attr_t) attr & __STANDOUT)
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wstandout(win);
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if ((attr_t) attr & __UNDERSCORE)
wunderscore(win);
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/* Check for conflict with color. */
if (win->wattr & __nca)
win->wattr &= ~__COLOR;
if ((attr_t) attr & __COLOR) {
/* If another color pair is set, turn that off first. */
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win->wattr &= ~__COLOR;
/* If can do color video, set the color pair bits. */
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if (cO != NULL) {
win->wattr |= attr & __COLOR;
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win->wattr &= ~__nca;
}
}
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return (OK);
}
/*
* wattroff --
* Test and unset attributes.
*
* Note that the 'me' sequence unsets all attributes. We handle
* which attributes should really be set in refresh.c:makech().
*/
int
wattroff(WINDOW *win, int attr)
{
#ifdef DEBUG
__CTRACE ("wattroff: win %0.2o, attr %08x\n", win, attr);
#endif
/* If can do exit modes, unset the relevent attribute bits. */
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if (ME != NULL) {
if ((attr_t) attr & __BLINK)
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win->wattr &= ~__BLINK;
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if ((attr_t) attr & __BOLD)
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win->wattr &= ~__BOLD;
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if ((attr_t) attr & __DIM)
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win->wattr &= ~__DIM;
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if ((attr_t) attr & __BLANK)
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win->wattr &= ~__BLANK;
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if ((attr_t) attr & __PROTECT)
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win->wattr &= ~__PROTECT;
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if ((attr_t) attr & __REVERSE)
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win->wattr &= ~__REVERSE;
}
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if ((attr_t) attr & __STANDOUT)
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wstandend(win);
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if ((attr_t) attr & __UNDERSCORE)
wunderend(win);
if ((attr_t) attr & __COLOR) {
if (cO != NULL)
win->wattr &= ~__COLOR;
}
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return (OK);
}
/*
* wattrset --
* Set specific attribute modes.
* Unset others.
*/
int
wattrset(WINDOW *win, int attr)
{
#ifdef DEBUG
__CTRACE ("wattrset: win %0.2o, attr %08x\n", win, attr);
#endif
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wattron(win, attr);
wattroff(win, (~attr & ~__COLOR) | ((attr & __COLOR) ? 0 : __COLOR));
return (OK);
}
/*
* getattrs --
* Get window attributes.
*/
chtype
getattrs(WINDOW *win)
{
#ifdef DEBUG
__CTRACE ("getattrs: win %0.2o\n", win);
#endif
return((chtype) win->wattr);
}