Home | History | Annotate | Line # | Download | only in libcurses
attributes.c revision 1.10
      1 /*	$NetBSD: attributes.c,v 1.10 2003/01/27 21:04:10 jdc Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Julian Coleman.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 #ifndef lint
     41 __RCSID("$NetBSD: attributes.c,v 1.10 2003/01/27 21:04:10 jdc Exp $");
     42 #endif				/* not lint */
     43 
     44 #include "curses.h"
     45 #include "curses_private.h"
     46 
     47 #ifndef _CURSES_USE_MACROS
     48 /*
     49  * attron --
     50  *	Test and set attributes on stdscr
     51  */
     52 
     53 int
     54 attron(int attr)
     55 {
     56 	return wattron(stdscr, attr);
     57 }
     58 
     59 /*
     60  * attroff --
     61  *	Test and unset attributes on stdscr.
     62  */
     63 int
     64 attroff(int attr)
     65 {
     66 	return wattroff(stdscr, attr);
     67 }
     68 
     69 /*
     70  * attrset --
     71  *	Set specific attribute modes.
     72  *	Unset others.  On stdscr.
     73  */
     74 int
     75 attrset(int attr)
     76 {
     77 	return wattrset(stdscr, attr);
     78 }
     79 
     80 #endif
     81 
     82 /*
     83  * wattron --
     84  *	Test and set attributes.
     85  *
     86  *	Modes are blinking, bold (extra bright), dim (half-bright),
     87  *	blanking (invisible), protected and reverse video
     88  */
     89 
     90 int
     91 wattron(WINDOW *win, int attr)
     92 {
     93 #ifdef DEBUG
     94 	__CTRACE ("wattron: win %0.2o, attr %08x\n", win, attr);
     95 #endif
     96 	/* If can enter modes, set the relevent attribute bits. */
     97 	if (__tc_me != NULL) {
     98 		if ((attr_t) attr & __BLINK && __tc_mb != NULL)
     99 			win->wattr |= __BLINK;
    100 		if ((attr_t) attr & __BOLD && __tc_md != NULL)
    101 			win->wattr |= __BOLD;
    102 		if ((attr_t) attr & __DIM && __tc_mh != NULL)
    103 			win->wattr |= __DIM;
    104 		if ((attr_t) attr & __BLANK && __tc_mk != NULL)
    105 			win->wattr |= __BLANK;
    106 		if ((attr_t) attr & __PROTECT && __tc_mp != NULL)
    107 			win->wattr |= __PROTECT;
    108 		if ((attr_t) attr & __REVERSE && __tc_mr != NULL)
    109 			win->wattr |= __REVERSE;
    110 	}
    111 	if ((attr_t) attr & __STANDOUT)
    112 		wstandout(win);
    113 	if ((attr_t) attr & __UNDERSCORE)
    114 		wunderscore(win);
    115 	if ((attr_t) attr & __COLOR) {
    116 		/* If another color pair is set, turn that off first. */
    117 		win->wattr &= ~__COLOR;
    118 		/* If can do color video, set the color pair bits. */
    119 		if (__tc_Co != NULL)
    120 			win->wattr |= attr & __COLOR;
    121 	}
    122 	return (OK);
    123 }
    124 
    125 /*
    126  * wattroff --
    127  *	Test and unset attributes.
    128  *
    129  *	Note that the 'me' sequence unsets all attributes.  We handle
    130  *	which attributes should really be set in refresh.c:makech().
    131  */
    132 int
    133 wattroff(WINDOW *win, int attr)
    134 {
    135 #ifdef DEBUG
    136 	__CTRACE ("wattroff: win %0.2o, attr %08x\n", win, attr);
    137 #endif
    138 	/* If can do exit modes, unset the relevent attribute bits. */
    139 	if (__tc_me != NULL) {
    140 		if ((attr_t) attr & __BLINK)
    141 			win->wattr &= ~__BLINK;
    142 		if ((attr_t) attr & __BOLD)
    143 			win->wattr &= ~__BOLD;
    144 		if ((attr_t) attr & __DIM)
    145 			win->wattr &= ~__DIM;
    146 		if ((attr_t) attr & __BLANK)
    147 			win->wattr &= ~__BLANK;
    148 		if ((attr_t) attr & __PROTECT)
    149 			win->wattr &= ~__PROTECT;
    150 		if ((attr_t) attr & __REVERSE)
    151 			win->wattr &= ~__REVERSE;
    152 	}
    153 	if ((attr_t) attr & __STANDOUT)
    154 		wstandend(win);
    155 	if ((attr_t) attr & __UNDERSCORE)
    156 		wunderend(win);
    157 	if ((attr_t) attr & __COLOR) {
    158 		if (__tc_Co != NULL)
    159 			win->wattr &= ~__COLOR;
    160 	}
    161 	return (OK);
    162 }
    163 
    164 /*
    165  * wattrset --
    166  *	Set specific attribute modes.
    167  *	Unset others.
    168  */
    169 int
    170 wattrset(WINDOW *win, int attr)
    171 {
    172 #ifdef DEBUG
    173 	__CTRACE ("wattrset: win %0.2o, attr %08x\n", win, attr);
    174 #endif
    175 	wattron(win, attr);
    176 	wattroff(win, (~attr & ~__COLOR) | ((attr & __COLOR) ? 0 : __COLOR));
    177 	return (OK);
    178 }
    179 
    180 /*
    181  * getattrs --
    182  * Get window attributes.
    183  */
    184 chtype
    185 getattrs(WINDOW *win)
    186 {
    187 #ifdef DEBUG
    188 	__CTRACE ("getattrs: win %0.2o\n", win);
    189 #endif
    190 	return((chtype) win->wattr);
    191 }
    192