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) 1995-1998 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 /* LINTLIBRARY */
28
29 /*
30 * color.c
31 *
32 * XCurses Library
33 *
34 * Copyright 1990, 1995 by Mortice Kern Systems Inc. All rights reserved.
35 *
36 */
37
38 #ifdef M_RCSID
39 #ifndef lint
40 static char rcsID[] =
41 "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/"
42 "libxcurses/src/libc/xcurses/rcs/color.c 1.6 1998/05/28 17:10:14 "
43 "cbates Exp $";
44 #endif
45 #endif
46
47 #include <private.h>
48 #include <stdlib.h>
49
50 int
start_color(void)51 start_color(void)
52 {
53 COLORS = max_colors;
54 COLOR_PAIRS = max_pairs;
55
56 if (orig_colors != (char *) 0)
57 (void) TPUTS(orig_colors, 1, __m_outc);
58
59 if (orig_pair != (char *) 0)
60 (void) TPUTS(orig_pair, 1, __m_outc);
61
62 if (0 < max_colors) {
63 cur_term->_color = calloc(max_colors,
64 sizeof (*cur_term->_color));
65 if (cur_term->_color == (short (*)[3]) 0)
66 goto error1;
67 }
68
69 if (0 < max_pairs) {
70 cur_term->_pair = calloc(max_pairs, sizeof (*cur_term->_pair));
71 if (cur_term->_pair == (short (*)[2]) 0)
72 goto error2;
73 }
74
75 (void) init_color(COLOR_BLACK, 0, 0, 0);
76 (void) init_color(COLOR_RED, 1000, 0, 0);
77 (void) init_color(COLOR_GREEN, 0, 1000, 0);
78 (void) init_color(COLOR_BLUE, 0, 0, 1000);
79 (void) init_color(COLOR_YELLOW, 1000, 1000, 0);
80 (void) init_color(COLOR_MAGENTA, 1000, 0, 1000);
81 (void) init_color(COLOR_CYAN, 0, 1000, 1000);
82 (void) init_color(COLOR_WHITE, 1000, 1000, 1000);
83
84 return (OK);
85 error2:
86 if (cur_term->_color != (short (*)[3]) 0)
87 free(cur_term->_color);
88 error1:
89 return (ERR);
90 }
91
92 int
init_color(short color,short r,short g,short b)93 init_color(short color, short r, short g, short b)
94 {
95 int code = ERR;
96
97 if (!can_change || color < 0 || max_colors <= color ||
98 r < 0 || 1000 < r ||
99 g < 0 || 1000 < g ||
100 b < 0 || 1000 < b)
101 goto error;
102
103 /* Remember color settings for future queries. */
104 cur_term->_color[color][0] = r;
105 cur_term->_color[color][1] = g;
106 cur_term->_color[color][2] = b;
107
108 code = OK;
109
110 /* Set the color. */
111 if (initialize_color != (char *) 0) {
112 code = tputs(tparm(initialize_color, (long) color,
113 (long) r, (long) g, (long) b, 0L, 0L, 0L, 0L, 0L),
114 1, __m_outc);
115 }
116 error:
117 return (code);
118 }
119
120 int
init_pair(short pair,short f,short b)121 init_pair(short pair, short f, short b)
122 {
123 int code = ERR;
124
125 if (pair < 0 || max_pairs <= pair ||
126 f < 0 || max_colors <= f ||
127 b < 0 || max_colors <= b)
128 goto error;
129
130 /* Remember color-pair settings for future queries. */
131 cur_term->_pair[pair][0] = f;
132 cur_term->_pair[pair][1] = b;
133
134 code = OK;
135
136 /* Set color-pair (foreground-background). */
137 if (initialize_pair != (char *) 0) {
138 code = tputs(tparm(initialize_pair,
139 (long) cur_term->_color[f][0],
140 (long) cur_term->_color[f][1],
141 (long) cur_term->_color[f][2],
142 (long) cur_term->_color[b][0],
143 (long) cur_term->_color[b][1],
144 (long) cur_term->_color[b][2],
145 0L, 0L, 0L), 1, __m_outc);
146 }
147 error:
148 return (code);
149 }
150
151 int
color_content(short color,short * r,short * g,short * b)152 color_content(short color, short *r, short *g, short *b)
153 {
154 if (color < 0 || max_colors <= color)
155 return (ERR);
156
157 /*
158 * There does not appear to be a terminfo entry to query the
159 * color settings, so we retain them in an array for quick
160 * access.
161 */
162 *r = cur_term->_color[color][0];
163 *g = cur_term->_color[color][1];
164 *b = cur_term->_color[color][2];
165
166 return (OK);
167 }
168
169 int
pair_content(short pair,short * f,short * b)170 pair_content(short pair, short *f, short *b)
171 {
172 if (pair < 0 || max_pairs <= pair)
173 return (ERR);
174
175 /*
176 * There does not appear to be a terminfo entry to query the
177 * color-pair settings, so we retain them in an array for quick
178 * access.
179 */
180 *f = cur_term->_pair[pair][0];
181 *b = cur_term->_pair[pair][1];
182
183 return (OK);
184 }
185