4eb3ef3dac
See the Single UNIX Specification, Version 2 : http://www.opengroup.org/onlinepubs/007908799/xcurses/can_change_color.html Also, add the functions : use_default_colors(); assume_default_colors(fore, back); (from ncurses) that allow the terminal default colours or user-specified default colours to be used.
136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/* $NetBSD: background.c,v 1.7 2002/08/04 16:43:05 jdc Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2000 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: background.c,v 1.7 2002/08/04 16:43:05 jdc Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include "curses.h"
|
|
#include "curses_private.h"
|
|
|
|
/*
|
|
* bkgdset
|
|
* Set new background attributes on stdscr.
|
|
*/
|
|
void
|
|
bkgdset(chtype ch)
|
|
{
|
|
wbkgdset(stdscr, ch);
|
|
}
|
|
|
|
/*
|
|
* bkgd --
|
|
* Set new background and new background attributes on stdscr.
|
|
*/
|
|
int
|
|
bkgd(chtype ch)
|
|
{
|
|
return(wbkgd(stdscr, ch));
|
|
}
|
|
|
|
/*
|
|
* wbkgdset
|
|
* Set new background attributes.
|
|
*/
|
|
void
|
|
wbkgdset(WINDOW *win, chtype ch)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE("wbkgdset: (%0.2o), '%s', %08x\n",
|
|
win, unctrl(ch & +__CHARTEXT), ch & __ATTRIBUTES);
|
|
#endif
|
|
|
|
/* Background character. */
|
|
if (ch & __CHARTEXT)
|
|
win->bch = (wchar_t) ch & __CHARTEXT;
|
|
|
|
/* Background attributes (check colour). */
|
|
if (__using_color && !(ch & __COLOR))
|
|
ch |= __default_color;
|
|
win->battr = (attr_t) ch & __ATTRIBUTES;
|
|
}
|
|
|
|
/*
|
|
* wbkgd --
|
|
* Set new background and new background attributes.
|
|
*/
|
|
int
|
|
wbkgd(WINDOW *win, chtype ch)
|
|
{
|
|
int y, x;
|
|
|
|
#ifdef DEBUG
|
|
__CTRACE("wbkgd: (%0.2o), '%s', %08x\n",
|
|
win, unctrl(ch & +__CHARTEXT), ch & __ATTRIBUTES);
|
|
#endif
|
|
|
|
/* Background attributes (check colour). */
|
|
if (__using_color && !(ch & __COLOR))
|
|
ch |= __default_color;
|
|
|
|
win->battr = (attr_t) ch & __ATTRIBUTES;
|
|
wbkgdset(win, ch);
|
|
for (y = 0; y < win->maxy; y++)
|
|
for (x = 0; x < win->maxx; x++) {
|
|
if (ch & A_CHARTEXT)
|
|
win->lines[y]->line[x].bch = ch & __CHARTEXT;
|
|
win->lines[y]->line[x].battr =
|
|
(attr_t) ch & __ATTRIBUTES;
|
|
}
|
|
__touchwin(win);
|
|
return(OK);
|
|
}
|
|
|
|
/*
|
|
* getbkgd --
|
|
* Get current background attributes.
|
|
*/
|
|
chtype
|
|
getbkgd(WINDOW *win)
|
|
{
|
|
attr_t battr;
|
|
|
|
/* Background attributes (check colour). */
|
|
battr = win->battr & A_ATTRIBUTES;
|
|
if (__using_color && ((battr & __COLOR) == __default_color))
|
|
battr &= ~__default_color;
|
|
|
|
return ((chtype) ((win->bch & A_CHARTEXT) | battr));
|
|
}
|