1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1995, by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 /*
28 * wbkgrnd.c
29 *
30 * XCurses Library
31 *
32 * Copyright 1990, 1995 by Mortice Kern Systems Inc. All rights reserved.
33 *
34 */
35
36 #ifdef M_RCSID
37 #ifndef lint
38 static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/wbkgrnd.c 1.4 1995/06/21 20:30:57 ant Exp $";
39 #endif
40 #endif
41
42 #include <private.h>
43 #include <string.h>
44
45 /*f
46 * Combine the new background setting with every position in the window.
47 * The background is any combination of attributes and a character.
48 * Only the attribute part is used to set the background of non-blank
49 * characters, while both character and attributes are used for blank
50 * positions.
51 */
52 int
wbkgrnd(w,bg)53 wbkgrnd(w, bg)
54 WINDOW *w;
55 const cchar_t *bg;
56 {
57 short y, x;
58 cchar_t old_bg, *cp;
59
60 #ifdef M_CURSES_TRACE
61 __m_trace("wbkgrnd(%p, %p)", w, bg);
62 #endif
63
64 old_bg = w->_bg;
65 w->_bg = *bg;
66
67 for (y = 0; y < w->_maxy; ++y) {
68 for (cp = w->_line[y], x = 0; x < w->_maxx; ++x) {
69 old_bg._f = cp->_f;
70 if (__m_cc_compare(cp, &w->_bg, 0)) {
71 /* Replace entire background character. */
72 *cp = *bg;
73 } else {
74 /* Disable old background attributes. */
75 cp->_at &= ~old_bg._at;
76
77 /* Enable new background and current
78 * foreground. The foreground is included
79 * in case there was overlap with the old
80 * background and the foreground.
81 */
82 cp->_at |= bg->_at | w->_fg._at;
83 }
84 }
85
86 /* Mark line as touched. */
87 w->_first[y] = 0;
88 w->_last[y] = x;
89 }
90
91 WSYNC(w);
92
93 return __m_return_code("wbkgrnd", WFLUSH(w));
94 }
95