1 /*
2 * $Id$
3 *
4 * (c) 2004 by Kalle Wallin <kaw@linux.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <ncurses.h>
25 #include <glib.h>
27 #include "config.h"
28 #include "ncmpc.h"
29 #include "options.h"
30 #include "support.h"
31 #include "colors.h"
33 #define COLOR_BRIGHT_MASK (1<<7)
35 #define COLOR_BRIGHT_BLACK (COLOR_BLACK | COLOR_BRIGHT_MASK)
36 #define COLOR_BRIGHT_RED (COLOR_RED | COLOR_BRIGHT_MASK)
37 #define COLOR_BRIGHT_GREEN (COLOR_GREEN | COLOR_BRIGHT_MASK)
38 #define COLOR_BRIGHT_YELLOW (COLOR_YELLOW | COLOR_BRIGHT_MASK)
39 #define COLOR_BRIGHT_BLUE (COLOR_BLUE | COLOR_BRIGHT_MASK)
40 #define COLOR_BRIGHT_MAGENTA (COLOR_MAGENTA | COLOR_BRIGHT_MASK)
41 #define COLOR_BRIGHT_CYAN (COLOR_CYAN | COLOR_BRIGHT_MASK)
42 #define COLOR_BRIGHT_WHITE (COLOR_WHITE | COLOR_BRIGHT_MASK)
44 #define IS_BRIGHT(color) (color & COLOR_BRIGHT_MASK)
46 /* name of the color fields */
47 #define NAME_TITLE "title"
48 #define NAME_TITLE_BOLD "title-bold"
49 #define NAME_LINE "line"
50 #define NAME_LINE_BOLD "line-flags"
51 #define NAME_LIST "list"
52 #define NAME_LIST_BOLD "list-bold"
53 #define NAME_PROGRESS "progressbar"
54 #define NAME_STATUS "status-song"
55 #define NAME_STATUS_BOLD "status-state"
56 #define NAME_STATUS_TIME "status-time"
57 #define NAME_ALERT "alert"
58 #define NAME_BGCOLOR "background"
60 typedef struct {
61 short color;
62 short r,g,b;
63 } color_definition_entry_t;
65 typedef struct {
66 int id;
67 char *name;
68 short fg;
69 attr_t attrs;
70 } color_entry_t;
72 static color_entry_t colors[] = {
74 /* color pair, field name, color, mono attribute */
75 /*-------------------------------------------------------------------------*/
76 { COLOR_TITLE, NAME_TITLE, COLOR_YELLOW, A_NORMAL },
77 { COLOR_TITLE_BOLD, NAME_TITLE_BOLD, COLOR_BRIGHT_YELLOW, A_BOLD },
78 { COLOR_LINE, NAME_LINE, COLOR_WHITE, A_NORMAL },
79 { COLOR_LINE_BOLD, NAME_LINE_BOLD, COLOR_BRIGHT_WHITE, A_BOLD },
80 { COLOR_LIST, NAME_LIST, COLOR_GREEN, A_NORMAL },
81 { COLOR_LIST_BOLD, NAME_LIST_BOLD, COLOR_BRIGHT_GREEN, A_BOLD },
82 { COLOR_PROGRESSBAR, NAME_PROGRESS, COLOR_WHITE, A_NORMAL },
83 { COLOR_STATUS, NAME_STATUS, COLOR_YELLOW, A_NORMAL },
84 { COLOR_STATUS_BOLD, NAME_STATUS_BOLD, COLOR_BRIGHT_YELLOW, A_BOLD },
85 { COLOR_STATUS_TIME, NAME_STATUS_TIME, COLOR_RED, A_NORMAL },
86 { COLOR_STATUS_ALERT, NAME_ALERT, COLOR_BRIGHT_RED, A_BOLD },
87 { 0, NULL, 0, 0 }
88 };
90 /* background color */
91 static short bg = COLOR_BLACK;
93 static GList *color_definition_list = NULL;
95 static color_entry_t *
96 colors_lookup(int id)
97 {
98 int i;
100 i=0;
101 while( colors[i].name != NULL )
102 {
103 if( colors[i].id == id )
104 return &colors[i];
105 i++;
106 }
107 return NULL;
108 }
110 static color_entry_t *
111 colors_lookup_by_name(char *name)
112 {
113 int i;
115 i=0;
116 while( colors[i].name != NULL )
117 {
118 if( !strcasecmp(colors[i].name, name) )
119 return &colors[i];
120 i++;
121 }
122 return NULL;
123 }
125 static int
126 colors_update_pair(int id)
127 {
128 color_entry_t *entry = colors_lookup(id);
129 short fg = -1;
131 if( !entry )
132 return -1;
134 if( IS_BRIGHT(entry->fg) )
135 {
136 entry->attrs = A_BOLD;
137 fg = entry->fg & ~COLOR_BRIGHT_MASK;
138 }
139 else
140 {
141 entry->attrs = A_NORMAL;
142 fg = entry->fg;
143 }
145 init_pair(entry->id, fg, bg);
147 return 0;
148 }
150 short
151 colors_str2color(char *str)
152 {
153 if( !strcasecmp(str,"black") )
154 return COLOR_BLACK;
155 else if( !strcasecmp(str,"red") )
156 return COLOR_RED;
157 else if( !strcasecmp(str,"green") )
158 return COLOR_GREEN;
159 else if( !strcasecmp(str,"yellow") )
160 return COLOR_YELLOW;
161 else if( !strcasecmp(str,"blue") )
162 return COLOR_BLUE;
163 else if( !strcasecmp(str,"magenta") )
164 return COLOR_MAGENTA;
165 else if( !strcasecmp(str,"cyan") )
166 return COLOR_CYAN;
167 else if( !strcasecmp(str,"white") )
168 return COLOR_WHITE;
169 else if( !strcasecmp(str,"brightred") )
170 return COLOR_BRIGHT_RED;
171 else if( !strcasecmp(str,"brightgreen") )
172 return COLOR_BRIGHT_GREEN;
173 else if( !strcasecmp(str,"brightyellow") )
174 return COLOR_BRIGHT_YELLOW;
175 else if( !strcasecmp(str,"brightblue") )
176 return COLOR_BRIGHT_BLUE;
177 else if( !strcasecmp(str,"brightmagenta") )
178 return COLOR_BRIGHT_MAGENTA;
179 else if( !strcasecmp(str,"brightcyan") )
180 return COLOR_BRIGHT_CYAN;
181 else if( !strcasecmp(str,"brightwhite") )
182 return COLOR_BRIGHT_WHITE;
183 else if( !strcasecmp(str,"grey") || !strcasecmp(str,"gray") )
184 return COLOR_BRIGHT_BLACK;
185 else if( !strcasecmp(str,"none") )
186 return -1;
187 fprintf(stderr,_("Warning: Unknown color - %s\n"), str);
188 return -2;
189 }
191 /* This function is called from conf.c before curses have been started,
192 * it adds the definition to the color_definition_list and init_color() is
193 * done in colors_start() */
194 int
195 colors_define(char *name, short r, short g, short b)
196 {
197 color_definition_entry_t *entry;
198 short color = colors_str2color(name);
200 if( color<0 )
201 return -1;
203 entry = g_malloc(sizeof(color_definition_entry_t));
204 entry->color = color;
205 entry->r = r;
206 entry->g = g;
207 entry->b = b;
209 color_definition_list = g_list_append(color_definition_list, entry);
211 return 0;
212 }
215 int
216 colors_assign(char *name, char *value)
217 {
218 color_entry_t *entry = colors_lookup_by_name(name);
219 short color;
221 if( !entry )
222 {
223 if( !strcasecmp(NAME_BGCOLOR, name) )
224 {
225 if( (color=colors_str2color(value)) < -1 )
226 return -1;
227 if( color > COLORS )
228 color = color & ~COLOR_BRIGHT_MASK;
229 bg = color;
230 return 0;
231 }
232 fprintf(stderr,_("Warning: Unknown color field - %s\n"), name);
233 return -1;
234 }
236 if( (color=colors_str2color(value)) < -1 )
237 return -1;
238 entry->fg = color;
240 return 0;
241 }
244 int
245 colors_start(void)
246 {
247 if( has_colors() )
248 {
249 /* initialize color support */
250 start_color();
251 use_default_colors();
252 /* define any custom colors defined in the configuration file */
253 if( color_definition_list && can_change_color() )
254 {
255 GList *list = color_definition_list;
257 while( list )
258 {
259 color_definition_entry_t *entry = list->data;
261 if( entry->color <= COLORS )
262 init_color(entry->color, entry->r, entry->g, entry->b);
263 list=list->next;
264 }
265 }
266 else if( color_definition_list && !can_change_color() )
267 fprintf(stderr, _("Terminal lacks support for changing colors!\n"));
269 if( options.enable_colors )
270 {
271 int i = 0;
273 while(colors[i].name)
274 {
275 /* update the color pairs */
276 colors_update_pair(colors[i].id);
277 i++;
278 }
280 }
281 }
282 else if( options.enable_colors )
283 {
284 fprintf(stderr, _("Terminal lacks color capabilities!\n"));
285 options.enable_colors = 0;
286 }
288 /* free the color_definition_list */
289 if( color_definition_list )
290 {
291 GList *list = color_definition_list;
293 while( list )
294 {
295 g_free(list->data);
296 list=list->next;
297 }
298 g_list_free(color_definition_list);
299 color_definition_list = NULL;
300 }
302 return 0;
303 }
306 int
307 colors_use(WINDOW *w, int id)
308 {
309 color_entry_t *entry = colors_lookup(id);
310 short pair;
311 attr_t attrs;
313 if( !entry )
314 return -1;
316 wattr_get(w, &attrs, &pair, NULL);
318 if( options.enable_colors )
319 {
320 /* color mode */
321 if( attrs != entry->attrs || id!=pair )
322 wattr_set(w, entry->attrs, id, NULL);
323 }
324 else
325 {
326 /* mono mode */
327 if( attrs != entry->attrs )
328 wattrset(w, entry->attrs);
329 }
331 return 0;
332 }