1 /*
2 * (c) 2004 by Kalle Wallin <kaw@linux.se>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 */
19 #include "colors.h"
20 #include "i18n.h"
21 #include "options.h"
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <string.h>
26 #include <glib.h>
28 #define COLOR_BRIGHT_MASK (1<<7)
30 #define COLOR_BRIGHT_BLACK (COLOR_BLACK | COLOR_BRIGHT_MASK)
31 #define COLOR_BRIGHT_RED (COLOR_RED | COLOR_BRIGHT_MASK)
32 #define COLOR_BRIGHT_GREEN (COLOR_GREEN | COLOR_BRIGHT_MASK)
33 #define COLOR_BRIGHT_YELLOW (COLOR_YELLOW | COLOR_BRIGHT_MASK)
34 #define COLOR_BRIGHT_BLUE (COLOR_BLUE | COLOR_BRIGHT_MASK)
35 #define COLOR_BRIGHT_MAGENTA (COLOR_MAGENTA | COLOR_BRIGHT_MASK)
36 #define COLOR_BRIGHT_CYAN (COLOR_CYAN | COLOR_BRIGHT_MASK)
37 #define COLOR_BRIGHT_WHITE (COLOR_WHITE | COLOR_BRIGHT_MASK)
39 #define IS_BRIGHT(color) (color & COLOR_BRIGHT_MASK)
41 /* name of the color fields */
42 #define NAME_TITLE "title"
43 #define NAME_TITLE_BOLD "title-bold"
44 #define NAME_LINE "line"
45 #define NAME_LINE_BOLD "line-flags"
46 #define NAME_LIST "list"
47 #define NAME_LIST_BOLD "list-bold"
48 #define NAME_PROGRESS "progressbar"
49 #define NAME_STATUS "status-song"
50 #define NAME_STATUS_BOLD "status-state"
51 #define NAME_STATUS_TIME "status-time"
52 #define NAME_ALERT "alert"
53 #define NAME_BGCOLOR "background"
55 typedef struct {
56 short color;
57 short r,g,b;
58 } color_definition_entry_t;
60 typedef struct {
61 enum color id;
62 const char *name;
63 short fg;
64 attr_t attrs;
65 } color_entry_t;
67 static color_entry_t colors[] = {
68 /* color pair, field name, color, mono attribute */
69 { COLOR_TITLE, NAME_TITLE, COLOR_YELLOW, A_NORMAL },
70 { COLOR_TITLE_BOLD, NAME_TITLE_BOLD, COLOR_BRIGHT_YELLOW, A_BOLD },
71 { COLOR_LINE, NAME_LINE, COLOR_WHITE, A_NORMAL },
72 { COLOR_LINE_BOLD, NAME_LINE_BOLD, COLOR_BRIGHT_WHITE, A_BOLD },
73 { COLOR_LIST, NAME_LIST, COLOR_GREEN, A_NORMAL },
74 { COLOR_LIST_BOLD, NAME_LIST_BOLD, COLOR_BRIGHT_GREEN, A_BOLD },
75 { COLOR_PROGRESSBAR, NAME_PROGRESS, COLOR_WHITE, A_NORMAL },
76 { COLOR_STATUS, NAME_STATUS, COLOR_YELLOW, A_NORMAL },
77 { COLOR_STATUS_BOLD, NAME_STATUS_BOLD, COLOR_BRIGHT_YELLOW, A_BOLD },
78 { COLOR_STATUS_TIME, NAME_STATUS_TIME, COLOR_RED, A_NORMAL },
79 { COLOR_STATUS_ALERT, NAME_ALERT, COLOR_BRIGHT_RED, A_BOLD },
80 { 0, NULL, 0, 0 }
81 };
83 /* background color */
84 static short bg = COLOR_BLACK;
86 static GList *color_definition_list = NULL;
88 static color_entry_t *
89 colors_lookup(enum color id)
90 {
91 int i = 0;
93 while (colors[i].name != NULL) {
94 if (colors[i].id == id)
95 return &colors[i];
96 i++;
97 }
99 return NULL;
100 }
102 static color_entry_t *
103 colors_lookup_by_name(const char *name)
104 {
105 int i = 0;
107 while (colors[i].name != NULL) {
108 if (!strcasecmp(colors[i].name, name))
109 return &colors[i];
110 i++;
111 }
113 return NULL;
114 }
116 static int
117 colors_update_pair(enum color id)
118 {
119 color_entry_t *entry = colors_lookup(id);
120 short fg = -1;
122 if (!entry)
123 return -1;
125 if (IS_BRIGHT(entry->fg)) {
126 entry->attrs = A_BOLD;
127 fg = entry->fg & ~COLOR_BRIGHT_MASK;
128 } else {
129 entry->attrs = A_NORMAL;
130 fg = entry->fg;
131 }
133 init_pair(entry->id, fg, bg);
134 return 0;
135 }
137 short
138 colors_str2color(const char *str)
139 {
140 if (!strcasecmp(str, "black"))
141 return COLOR_BLACK;
142 else if (!strcasecmp(str, "red"))
143 return COLOR_RED;
144 else if (!strcasecmp(str, "green"))
145 return COLOR_GREEN;
146 else if (!strcasecmp(str, "yellow"))
147 return COLOR_YELLOW;
148 else if (!strcasecmp(str, "blue"))
149 return COLOR_BLUE;
150 else if (!strcasecmp(str, "magenta"))
151 return COLOR_MAGENTA;
152 else if (!strcasecmp(str, "cyan"))
153 return COLOR_CYAN;
154 else if (!strcasecmp(str, "white"))
155 return COLOR_WHITE;
156 else if (!strcasecmp(str, "brightred"))
157 return COLOR_BRIGHT_RED;
158 else if (!strcasecmp(str, "brightgreen"))
159 return COLOR_BRIGHT_GREEN;
160 else if (!strcasecmp(str, "brightyellow"))
161 return COLOR_BRIGHT_YELLOW;
162 else if (!strcasecmp(str, "brightblue"))
163 return COLOR_BRIGHT_BLUE;
164 else if (!strcasecmp(str, "brightmagenta"))
165 return COLOR_BRIGHT_MAGENTA;
166 else if (!strcasecmp(str, "brightcyan"))
167 return COLOR_BRIGHT_CYAN;
168 else if (!strcasecmp(str, "brightwhite"))
169 return COLOR_BRIGHT_WHITE;
170 else if (!strcasecmp(str, "grey") || !strcasecmp(str, "gray"))
171 return COLOR_BRIGHT_BLACK;
172 else if (!strcasecmp(str, "none"))
173 return -1;
175 fprintf(stderr,_("Warning: Unknown color - %s\n"), str);
176 return -2;
177 }
179 /* This function is called from conf.c before curses have been started,
180 * it adds the definition to the color_definition_list and init_color() is
181 * done in colors_start() */
182 int
183 colors_define(const char *name, short r, short g, short b)
184 {
185 color_definition_entry_t *entry;
186 short color = colors_str2color(name);
188 if (color < 0)
189 return -1;
191 entry = g_malloc(sizeof(color_definition_entry_t));
192 entry->color = color;
193 entry->r = r;
194 entry->g = g;
195 entry->b = b;
197 color_definition_list = g_list_append(color_definition_list, entry);
199 return 0;
200 }
202 int
203 colors_assign(const char *name, const char *value)
204 {
205 color_entry_t *entry = colors_lookup_by_name(name);
206 short color;
208 if (!entry) {
209 if (!strcasecmp(NAME_BGCOLOR, name)) {
210 if ((color = colors_str2color(value)) < -1)
211 return -1;
212 if (color > COLORS)
213 color = color & ~COLOR_BRIGHT_MASK;
214 bg = color;
215 return 0;
216 }
218 fprintf(stderr,_("Warning: Unknown color field - %s\n"), name);
219 return -1;
220 }
222 if ((color = colors_str2color(value)) < -1)
223 return -1;
225 entry->fg = color;
226 return 0;
227 }
229 int
230 colors_start(void)
231 {
232 if (has_colors()) {
233 /* initialize color support */
234 start_color();
235 use_default_colors();
236 /* define any custom colors defined in the configuration file */
237 if (color_definition_list && can_change_color()) {
238 GList *list = color_definition_list;
240 while (list) {
241 color_definition_entry_t *entry = list->data;
243 if (entry->color <= COLORS)
244 init_color(entry->color, entry->r,
245 entry->g, entry->b);
246 list = list->next;
247 }
248 } else if (color_definition_list && !can_change_color())
249 fprintf(stderr, _("Terminal lacks support for changing colors!\n"));
251 if (options.enable_colors) {
252 int i = 0;
254 while (colors[i].name) {
255 /* update the color pairs */
256 colors_update_pair(colors[i].id);
257 i++;
258 }
259 }
260 } else if (options.enable_colors) {
261 fprintf(stderr, _("Terminal lacks color capabilities!\n"));
262 options.enable_colors = 0;
263 }
265 /* free the color_definition_list */
266 if (color_definition_list) {
267 GList *list = color_definition_list;
269 while (list) {
270 g_free(list->data);
271 list=list->next;
272 }
274 g_list_free(color_definition_list);
275 color_definition_list = NULL;
276 }
278 return 0;
279 }
281 int
282 colors_use(WINDOW *w, enum color id)
283 {
284 color_entry_t *entry = colors_lookup(id);
285 short pair;
286 attr_t attrs;
288 if (!entry)
289 return -1;
291 wattr_get(w, &attrs, &pair, NULL);
293 if (options.enable_colors) {
294 /* color mode */
295 if (attrs != entry->attrs || (short)id != pair)
296 wattr_set(w, entry->attrs, id, NULL);
297 } else {
298 /* mono mode */
299 if (attrs != entry->attrs)
300 wattrset(w, entry->attrs);
301 }
303 return 0;
304 }