/*      $NetBSD: attributes.c,v 1.36 2024/12/23 02:58:03 blymn 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.
*
* 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 1.36 2024/12/23 02:58:03 blymn Exp $");
#endif                          /* not lint */

#include "curses.h"
#include "curses_private.h"

static int __wattr_off(WINDOW *, attr_t);
static int __wattr_on(WINDOW *, attr_t);
static void __wcolor_set(WINDOW *, attr_t);


#ifndef _CURSES_USE_MACROS
#ifdef HAVE_WCHAR
/*
* attr_get --
*      Get wide attributes and color pair from stdscr
*/
/* ARGSUSED */
int
attr_get(attr_t *attr, short *pair, void *opts)
{
       return wattr_get(stdscr, attr, pair, opts);
}

/*
* attr_on --
*      Test and set wide attributes on stdscr
*/
/* ARGSUSED */
int
attr_on(attr_t attr, void *opts)
{
       return wattr_on(stdscr, attr, opts);
}

/*
* attr_off --
*      Test and unset wide attributes on stdscr
*/
/* ARGSUSED */
int
attr_off(attr_t attr, void *opts)
{
       return wattr_off(stdscr, attr, opts);
}

/*
* attr_set --
*      Set wide attributes and color pair on stdscr
*/
/* ARGSUSED */
int
attr_set(attr_t attr, short pair, void *opts)
{
       return wattr_set(stdscr, attr, pair, opts);
}

/*
* color_set --
*      Set color pair on stdscr
*/
/* ARGSUSED */
int
color_set(short pair, void *opts)
{
       return wcolor_set(stdscr, pair, opts);
}
#endif /* HAVE_WCHAR */

/*
* 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  /* _CURSES_USE_MACROS */


#ifdef HAVE_WCHAR
/*
* wattr_get --
*      Get wide attributes and colour pair from window
*      Note that attributes also includes colour.
*/
/* ARGSUSED */
int
wattr_get(WINDOW *win, attr_t *attr, short *pair, void *opts)
{
       if (__predict_false(win == NULL))
               return ERR;

       __CTRACE(__CTRACE_ATTR, "wattr_get: win %p\n", win);
       if (attr != NULL) {
               *attr = win->wattr;
#ifdef HAVE_WCHAR
               *attr &= WA_ATTRIBUTES;
#endif
       }

       if (pair != NULL)
               *pair = PAIR_NUMBER(win->wattr);
       return OK;
}

/*
* wattr_on --
*      Test and set wide attributes on window
*/
int
wattr_on(WINDOW *win, attr_t attr, void *opts)
{
       if (__predict_false(opts != NULL))
               return ERR;

       return __wattr_on(win, attr);
}

/*
* wattr_off --
*      Test and unset wide attributes on window
*
*      Note that the 'me' sequence unsets all attributes.  We handle
*      which attributes should really be set in refresh.c:makech().
*/
int
wattr_off(WINDOW *win, attr_t attr, void *opts)
{
       if (__predict_false(opts != NULL))
               return ERR;

       return __wattr_off(win, attr);
}


/*
* wattr_set --
*      Set wide attributes and color pair on window
*/
int
wattr_set(WINDOW *win, attr_t attr, short pair, void *opts)
{
       __CTRACE(__CTRACE_ATTR, "wattr_set: win %p, attr %08x, pair %d\n",
           win, attr, pair);

       if (__predict_false(opts != NULL))
               return ERR;

       /*
        * This overwrites any colour setting from the attributes
        * and is compatible with ncurses.
        */
       attr = (attr & ~__COLOR) | COLOR_PAIR(pair);

       __wattr_off(win, WA_ATTRIBUTES);
       __wattr_on(win, attr);
       return OK;
}

/*
* wcolor_set --
*      Set color pair on window
*/
/* ARGSUSED */
int
wcolor_set(WINDOW *win, short pair, void *opts)
{
       __CTRACE(__CTRACE_COLOR, "wolor_set: win %p, pair %d\n", win, pair);

       if (__predict_false(opts != NULL))
               return ERR;

       __wcolor_set(win, (attr_t) COLOR_PAIR(pair));
       return OK;
}
#endif /* HAVE_WCHAR */


/*
* getattrs --
*      Get window attributes.
*/
chtype
getattrs(WINDOW *win)
{
       if (__predict_false(win == NULL))
               return ERR;

       __CTRACE(__CTRACE_ATTR, "getattrs: win %p\n", win);
       return((chtype) win->wattr);
}

/*
* wattron --
*      Test and set attributes.
*/
int
wattron(WINDOW *win, int attr)
{
       __CTRACE(__CTRACE_ATTR, "wattron: win %p, attr %08x\n", win, attr);
       return __wattr_on(win, (attr_t) attr);
}

/*
* wattroff --
*      Test and unset attributes.
*/
int
wattroff(WINDOW *win, int attr)
{
       __CTRACE(__CTRACE_ATTR, "wattroff: win %p, attr %08x\n", win, attr);
       return __wattr_off(win, (attr_t) attr);
}

/*
* wattrset --
*      Set specific attribute modes.
*      Unset others.
*/
int
wattrset(WINDOW *win, int attr)
{
       __CTRACE(__CTRACE_ATTR, "wattrset: win %p, attr %08x\n", win, attr);
       __wattr_off(win, __ATTRIBUTES);
       __wattr_on(win, (attr_t) attr);
       return OK;
}

/*
* termattrs --
*      Get terminal attributes
*/
chtype
termattrs(void)
{
       chtype ch = 0;

       __CTRACE(__CTRACE_ATTR, "termattrs\n");
       if (exit_attribute_mode != NULL) {
       __CTRACE(__CTRACE_ATTR, "termattrs: have exit attribute mode\n");
               if (enter_blink_mode != NULL)
                       ch |= __BLINK;
               if (enter_bold_mode != NULL)
                       ch |= __BOLD;
               if (enter_dim_mode != NULL)
                       ch |= __DIM;
               if (enter_secure_mode != NULL)
                       ch |= __BLANK;
               if (enter_protected_mode != NULL)
                       ch |= __PROTECT;
               if (enter_reverse_mode != NULL)
                       ch |= __REVERSE;
       }
       if (enter_standout_mode != NULL && exit_standout_mode != NULL)
               ch |= __STANDOUT;
       if (enter_underline_mode != NULL && exit_underline_mode != NULL)
               ch |= __UNDERSCORE;
       if (enter_alt_charset_mode != NULL && exit_alt_charset_mode != NULL)
               ch |= __ALTCHARSET;

       return ch;
}


#ifdef HAVE_WCHAR
/*
* term_attrs --
*      Get terminal wide attributes
*/
attr_t
term_attrs(void)
{
       attr_t attr = 0;

       __CTRACE(__CTRACE_ATTR, "term_attrs\n");
       if (exit_attribute_mode != NULL) {
               if (enter_blink_mode != NULL)
                       attr |= __BLINK;
               if (enter_bold_mode != NULL)
                       attr |= __BOLD;
               if (enter_dim_mode != NULL)
                       attr |= __DIM;
               if (enter_secure_mode != NULL)
                       attr |= __BLANK;
               if (enter_protected_mode != NULL)
                       attr |= __PROTECT;
               if (enter_reverse_mode != NULL)
                       attr |= __REVERSE;
#ifdef HAVE_WCHAR
               if (enter_low_hl_mode != NULL)
                       attr |= WA_LOW;
               if (enter_top_hl_mode != NULL)
                       attr |= WA_TOP;
               if (enter_left_hl_mode != NULL)
                       attr |= WA_LEFT;
               if (enter_right_hl_mode != NULL)
                       attr |= WA_RIGHT;
               if (enter_horizontal_hl_mode != NULL)
                       attr |= WA_HORIZONTAL;
               if (enter_vertical_hl_mode != NULL)
                       attr |= WA_VERTICAL;
#endif /* HAVE_WCHAR */
       }
       if (enter_standout_mode != NULL && exit_standout_mode != NULL)
               attr |= __STANDOUT;
       if (enter_underline_mode != NULL && exit_underline_mode != NULL)
               attr |= __UNDERSCORE;
       if (enter_alt_charset_mode != NULL && exit_alt_charset_mode != NULL)
               attr |= __ALTCHARSET;

       return attr;
}
#endif /* HAVE_WCHAR */


static int
__wattr_on(WINDOW *win, attr_t attr)
{
       const TERMINAL *t;

       if (__predict_false(win == NULL))
               return ERR;

       t = win->screen->term;

       __CTRACE(__CTRACE_ATTR, "wattr_on: win %p, attr %08x\n", win, attr);
       /* If can enter modes, set the relevant attribute bits. */
       if (t_exit_attribute_mode(t) != NULL) {
               if (attr & __BLINK && t_enter_blink_mode(t) != NULL)
                       win->wattr |= __BLINK;
               if (attr & __BOLD && t_enter_bold_mode(t) != NULL)
                       win->wattr |= __BOLD;
               if (attr & __DIM && t_enter_dim_mode(t) != NULL)
                       win->wattr |= __DIM;
               if (attr & __BLANK && t_enter_secure_mode(t) != NULL)
                       win->wattr |= __BLANK;
               if (attr & __PROTECT && t_enter_protected_mode(t) != NULL)
                       win->wattr |= __PROTECT;
               if (attr & __REVERSE && t_enter_reverse_mode(t) != NULL)
                       win->wattr |= __REVERSE;
#ifdef HAVE_WCHAR
               if (attr & WA_LOW && t_enter_low_hl_mode(t) != NULL)
                       win->wattr |= WA_LOW;
               if (attr & WA_TOP && t_enter_top_hl_mode(t) != NULL)
                       win->wattr |= WA_TOP;
               if (attr & WA_LEFT && t_enter_left_hl_mode(t) != NULL)
                       win->wattr |= WA_LEFT;
               if (attr & WA_RIGHT && t_enter_right_hl_mode(t) != NULL)
                       win->wattr |= WA_RIGHT;
               if (attr & WA_HORIZONTAL && t_enter_horizontal_hl_mode(t) != NULL)
                       win->wattr |= WA_HORIZONTAL;
               if (attr & WA_VERTICAL && t_enter_vertical_hl_mode(t) != NULL)
                       win->wattr |= WA_VERTICAL;
#endif /* HAVE_WCHAR */
       }
       if (attr & __STANDOUT && t_enter_standout_mode(t) != NULL &&
           t_exit_standout_mode(t) != NULL)
               wstandout(win);
       if (attr & __UNDERSCORE && t_enter_underline_mode(t) != NULL &&
           t_exit_underline_mode(t) != NULL)
               wunderscore(win);
       if (attr & __COLOR)
               __wcolor_set(win, attr);
       return OK;
}


static int
__wattr_off(WINDOW *win, attr_t attr)
{
       const TERMINAL *t;

       if (__predict_false(win == NULL))
               return ERR;

       t = win->screen->term;

       __CTRACE(__CTRACE_ATTR, "wattr_off: win %p, attr %08x\n", win, attr);
       /* If can do exit modes, unset the relevant attribute bits. */
       if (t_exit_attribute_mode(t) != NULL) {
               if (attr & __BLINK)
                       win->wattr &= ~__BLINK;
               if (attr & __BOLD)
                       win->wattr &= ~__BOLD;
               if (attr & __DIM)
                       win->wattr &= ~__DIM;
               if (attr & __BLANK)
                       win->wattr &= ~__BLANK;
               if (attr & __PROTECT)
                       win->wattr &= ~__PROTECT;
               if (attr & __REVERSE)
                       win->wattr &= ~__REVERSE;
#ifdef HAVE_WCHAR
               if (attr & WA_LOW)
                       win->wattr &= ~WA_LOW;
               if (attr & WA_TOP)
                       win->wattr &= ~WA_TOP;
               if (attr & WA_LEFT)
                       win->wattr &= ~WA_LEFT;
               if (attr & WA_RIGHT)
                       win->wattr &= ~WA_RIGHT;
               if (attr & WA_HORIZONTAL)
                       win->wattr &= ~WA_HORIZONTAL;
               if (attr & WA_VERTICAL)
                       win->wattr &= ~WA_VERTICAL;
#endif /* HAVE_WCHAR */
       }
       if (attr & __STANDOUT)
               wstandend(win);
       if (attr & __UNDERSCORE)
               wunderend(win);
       if (attr & __COLOR) {
               if (max_colors != 0)
                       win->wattr &= ~__COLOR;
       }
       return OK;
}


static void
__wcolor_set(WINDOW *win, attr_t attr)
{
       const TERMINAL *t;

       if (__predict_false(win == NULL))
               return;

       t = win->screen->term;

       /* If another color pair is set, turn that off first. */
       win->wattr &= ~__COLOR;
       /* If can do color video, set the color pair bits. */
       if (t_max_colors(t) != 0)
               win->wattr |= attr & __COLOR;
}

You are viewing proxied material from ftp.icm.edu.pl. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.