NetBSD/lib/libcurses/attributes.c

280 lines
6.6 KiB
C

/* $NetBSD: attributes.c,v 1.5 2000/04/16 09:48:09 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 "curses.h"
#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
*/
int
wattron(WINDOW *win, int attr)
{
#ifdef DEBUG
__CTRACE ("wattron: %08x, %08x\n", attr, __nca);
#endif
if ((attr_t) attr & __BLINK) {
/* If can do blink, set the screen blink bit. */
if (MB != NULL && ME != NULL) {
win->wattr |= __BLINK;
/*
* Check for conflict with color.
*/
if ((win->wattr & __COLOR) && (__nca & __BLINK)) {
win->wattr &= ~__COLOR;
}
}
}
if ((attr_t) attr & __BOLD) {
/* If can do bold, set the screen bold bit. */
if (MD != NULL && ME != NULL) {
win->wattr |= __BOLD;
if ((win->wattr & __COLOR) && (__nca & __BOLD)) {
win->wattr &= ~__COLOR;
}
}
}
if ((attr_t) attr & __DIM) {
/* If can do dim, set the screen dim bit. */
if (MH != NULL && ME != NULL) {
win->wattr |= __DIM;
if ((win->wattr & __COLOR) && (__nca & __DIM)) {
win->wattr &= ~__COLOR;
}
}
}
if ((attr_t) attr & __BLANK) {
/* If can do blank, set the screen blank bit. */
if (MK != NULL && ME != NULL) {
win->wattr |= __BLANK;
if ((win->wattr & __COLOR) && (__nca & __BLANK)) {
win->wattr &= ~__COLOR;
}
}
}
if ((attr_t) attr & __PROTECT) {
/* If can do protected, set the screen protected bit. */
if (MP != NULL && ME != NULL) {
win->wattr |= __PROTECT;
if ((win->wattr & __COLOR) && (__nca & __PROTECT)) {
win->wattr &= ~__COLOR;
}
}
}
if ((attr_t) attr & __REVERSE) {
/* If can do reverse video, set the screen reverse video bit. */
if (MR != NULL && ME != NULL)
{
win->wattr |= __REVERSE;
if ((win->wattr & __COLOR) && (__nca & __REVERSE)) {
win->wattr &= ~__COLOR;
}
}
}
if ((attr_t) attr & __STANDOUT) {
wstandout(win);
}
if ((attr_t) attr & __UNDERSCORE) {
wunderscore(win);
}
if ((attr_t) attr & __COLOR) {
/* If another color pair is set, turn that off first. */
if ((win->wattr & __COLOR) != ((attr_t) attr & __COLOR))
win->wattr &= ~__COLOR;
/* If can do color video, set the color pair bits. */
if (cO != NULL)
{
win->wattr |= attr & __COLOR;
if (__nca != __NORMAL) {
win->wattr &= ~__nca;
}
}
}
return (1);
}
/*
* 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: %08x\n", attr);
#endif
/* If can do exit modes, unset the relevent attribute bits. */
if ((attr_t) attr & __BLINK) {
if (ME != NULL) {
win->wattr &= ~__BLINK;
}
}
if ((attr_t) attr & __BOLD) {
if (ME != NULL) {
win->wattr &= ~__BOLD;
}
}
if ((attr_t) attr & __DIM) {
if (ME != NULL) {
win->wattr &= ~__DIM;
}
}
if ((attr_t) attr & __BLANK) {
if (ME != NULL) {
win->wattr &= ~__BLANK;
}
}
if ((attr_t) attr & __PROTECT) {
if (ME != NULL) {
win->wattr &= ~__PROTECT;
}
}
if ((attr_t) attr & __REVERSE) {
if (ME != NULL) {
win->wattr &= ~__REVERSE;
}
}
if ((attr_t) attr & __STANDOUT) {
wstandend(win);
}
if ((attr_t) attr & __UNDERSCORE) {
wunderend(win);
}
if ((attr_t) attr & __COLOR) {
if (cO != NULL)
{
win->wattr &= ~__COLOR;
}
}
return (1);
}
/*
* wattrset
* Set specific attribute modes.
* Unset others.
*/
int
wattrset(WINDOW *win, int attr)
{
#ifdef DEBUG
__CTRACE ("wattrset: %08x\n", attr, __nca);
#endif
if ((attr_t) attr & __BLINK)
wattron(win, __BLINK);
else
wattroff(win, __BLINK);
if ((attr_t) attr & __BOLD)
wattron(win, __BOLD);
else
wattroff(win, __BOLD);
if ((attr_t) attr & __DIM)
wattron(win, __DIM);
else
wattroff(win, __DIM);
if ((attr_t) attr & __BLANK)
wattron(win, __BLANK);
else
wattroff(win, __BLANK);
if ((attr_t) attr & __PROTECT)
wattron(win, __PROTECT);
else
wattroff(win, __PROTECT);
if ((attr_t) attr & __REVERSE)
wattron(win, __REVERSE);
else
wattroff(win, __REVERSE);
if ((attr_t) attr & __STANDOUT)
wstandout(win);
else
wstandend(win);
if ((attr_t) attr & __UNDERSCORE)
wunderscore(win);
else
wunderend(win);
if ((attr_t) attr & __COLOR)
wattron(win, attr & (int) __COLOR);
else
wattroff(win, (int) __COLOR);
return (1);
}