1 /* $NetBSD: background.c,v 1.7 2002/08/04 16:43:05 jdc Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 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: background.c,v 1.7 2002/08/04 16:43:05 jdc Exp $"); 42 #endif /* not lint */ 43 44 #include "curses.h" 45 #include "curses_private.h" 46 47 /* 48 * bkgdset 49 * Set new background attributes on stdscr. 50 */ 51 void 52 bkgdset(chtype ch) 53 { 54 wbkgdset(stdscr, ch); 55 } 56 57 /* 58 * bkgd -- 59 * Set new background and new background attributes on stdscr. 60 */ 61 int 62 bkgd(chtype ch) 63 { 64 return(wbkgd(stdscr, ch)); 65 } 66 67 /* 68 * wbkgdset 69 * Set new background attributes. 70 */ 71 void 72 wbkgdset(WINDOW *win, chtype ch) 73 { 74 #ifdef DEBUG 75 __CTRACE("wbkgdset: (%0.2o), '%s', %08x\n", 76 win, unctrl(ch & +__CHARTEXT), ch & __ATTRIBUTES); 77 #endif 78 79 /* Background character. */ 80 if (ch & __CHARTEXT) 81 win->bch = (wchar_t) ch & __CHARTEXT; 82 83 /* Background attributes (check colour). */ 84 if (__using_color && !(ch & __COLOR)) 85 ch |= __default_color; 86 win->battr = (attr_t) ch & __ATTRIBUTES; 87 } 88 89 /* 90 * wbkgd -- 91 * Set new background and new background attributes. 92 */ 93 int 94 wbkgd(WINDOW *win, chtype ch) 95 { 96 int y, x; 97 98 #ifdef DEBUG 99 __CTRACE("wbkgd: (%0.2o), '%s', %08x\n", 100 win, unctrl(ch & +__CHARTEXT), ch & __ATTRIBUTES); 101 #endif 102 103 /* Background attributes (check colour). */ 104 if (__using_color && !(ch & __COLOR)) 105 ch |= __default_color; 106 107 win->battr = (attr_t) ch & __ATTRIBUTES; 108 wbkgdset(win, ch); 109 for (y = 0; y < win->maxy; y++) 110 for (x = 0; x < win->maxx; x++) { 111 if (ch & A_CHARTEXT) 112 win->lines[y]->line[x].bch = ch & __CHARTEXT; 113 win->lines[y]->line[x].battr = 114 (attr_t) ch & __ATTRIBUTES; 115 } 116 __touchwin(win); 117 return(OK); 118 } 119 120 /* 121 * getbkgd -- 122 * Get current background attributes. 123 */ 124 chtype 125 getbkgd(WINDOW *win) 126 { 127 attr_t battr; 128 129 /* Background attributes (check colour). */ 130 battr = win->battr & A_ATTRIBUTES; 131 if (__using_color && ((battr & __COLOR) == __default_color)) 132 battr &= ~__default_color; 133 134 return ((chtype) ((win->bch & A_CHARTEXT) | battr)); 135 } 136