refactoring + cleanup + code style
[psensor.git] / src / cfg.c
1 /*
2  * Copyright (C) 2010-2012 jeanfi@gmail.com
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301 USA
18  */
19 #include <stdlib.h>
20 #include <stdio.h>
21 #include <string.h>
22 #include <ctype.h>
23
24 #include <gconf/gconf-client.h>
25
26 #include "cfg.h"
27
28 static const char *KEY_SENSORS = "/apps/psensor/sensors";
29
30 static const char *ATT_SENSOR_ALARM_ENABLED = "alarm/enabled";
31 /* static const char *ATT_SENSOR_ALARM_HIGH_THRESOLD = "alarm/high_thresold"; */
32 /* static const char *ATT_SENSOR_ALARM_LOW_THRESOLD = "alarm/low_thresold"; */
33 static const char *ATT_SENSOR_COLOR = "color";
34 static const char *ATT_SENSOR_ENABLED = "enabled";
35 static const char *ATT_SENSOR_NAME = "name";
36
37 static const char *KEY_SENSOR_UPDATE_INTERVAL
38 = "/apps/psensor/sensor/update_interval";
39
40 static const char *KEY_GRAPH_UPDATE_INTERVAL
41 = "/apps/psensor/graph/update_interval";
42
43 static const char *KEY_GRAPH_MONITORING_DURATION
44 = "/apps/psensor/graph/monitoring_duration";
45
46 static const char *KEY_GRAPH_BACKGROUND_COLOR
47 = "/apps/psensor/graph/background_color";
48
49 static const char *DEFAULT_GRAPH_BACKGROUND_COLOR = "#e8f4e8f4a8f5";
50
51 static const char *KEY_GRAPH_BACKGROUND_ALPHA
52 = "/apps/psensor/graph/background_alpha";
53
54 static const char *KEY_GRAPH_FOREGROUND_COLOR
55 = "/apps/psensor/graph/foreground_color";
56 static const char *DEFAULT_GRAPH_FOREGROUND_COLOR = "#000000000000";
57
58 static const char *KEY_ALPHA_CHANNEL_ENABLED
59 = "/apps/psensor/graph/alpha_channel_enabled";
60
61 static const char *KEY_INTERFACE_SENSORLIST_POSITION
62 = "/apps/psensor/interface/sensorlist_position";
63
64 static const char *KEY_INTERFACE_WINDOW_DECORATION_DISABLED
65 = "/apps/psensor/interface/window_decoration_disabled";
66
67 static const char *KEY_INTERFACE_WINDOW_KEEP_BELOW_ENABLED
68 = "/apps/psensor/interface/window_keep_below_enabled";
69
70 static const char *KEY_INTERFACE_MENU_BAR_DISABLED
71 = "/apps/psensor/interface/menu_bar_disabled";
72
73 static const char *KEY_INTERFACE_UNITY_LAUNCHER_COUNT_DISABLED
74 = "/apps/psensor/interface/unity_launcher_count_disabled";
75
76 static const char *KEY_INTERFACE_HIDE_ON_STARTUP
77 = "/apps/psensor/interface/hide_on_startup";
78
79 static const char *KEY_INTERFACE_WINDOW_RESTORE_ENABLED
80 = "/apps/psensor/interface/window_restore_enabled";
81
82 static const char *KEY_INTERFACE_WINDOW_X = "/apps/psensor/interface/window_x";
83 static const char *KEY_INTERFACE_WINDOW_Y = "/apps/psensor/interface/window_y";
84 static const char *KEY_INTERFACE_WINDOW_W = "/apps/psensor/interface/window_w";
85 static const char *KEY_INTERFACE_WINDOW_H = "/apps/psensor/interface/window_h";
86
87 static const char *KEY_INTERFACE_WINDOW_DIVIDER_POS
88 = "/apps/psensor/interface/window_divider_pos";
89
90 static const char *KEY_INTERFACE_TEMPERATURE_UNIT
91 = "/apps/psensor/interface/temperature_unit";
92
93 static GConfClient *client;
94
95 static char *get_string(const char *key, const char *default_value)
96 {
97         char *value;
98
99         value = gconf_client_get_string(client, key, NULL);
100
101         if (!value) {
102                 value = strdup(default_value);
103                 gconf_client_set_string(client, key, default_value, NULL);
104         }
105
106         return value;
107 }
108
109 static struct color *get_background_color()
110 {
111         char *scolor;
112         struct color *c;
113
114         scolor = get_string(KEY_GRAPH_BACKGROUND_COLOR,
115                             DEFAULT_GRAPH_BACKGROUND_COLOR);
116
117         c = str_to_color(scolor);
118         free(scolor);
119
120         if (c == NULL)
121                 return color_new(0xffff, 0xffff, 0xffff);
122
123         return c;
124 }
125
126 static struct color *get_foreground_color()
127 {
128         char *scolor;
129         struct color *c;
130
131         scolor = get_string(KEY_GRAPH_FOREGROUND_COLOR,
132                             DEFAULT_GRAPH_FOREGROUND_COLOR);
133
134         c = str_to_color(scolor);
135         free(scolor);
136
137         if (c == NULL)
138                 return color_new(0x0000, 0x0000, 0x0000);
139
140         return c;
141 }
142
143 static unsigned int is_alpha_channel_enabled()
144 {
145         gboolean b;
146
147         b = gconf_client_get_bool(client, KEY_ALPHA_CHANNEL_ENABLED, NULL);
148
149         return b == TRUE;
150 }
151
152 static enum sensorlist_position get_sensorlist_position()
153 {
154         return gconf_client_get_int(client,
155                                     KEY_INTERFACE_SENSORLIST_POSITION, NULL);
156 }
157
158 static void set_sensorlist_position(enum sensorlist_position pos)
159 {
160         gconf_client_set_int(client,
161                              KEY_INTERFACE_SENSORLIST_POSITION, pos, NULL);
162 }
163
164 static double get_graph_background_alpha()
165 {
166         double a;
167
168         a = gconf_client_get_float(client, KEY_GRAPH_BACKGROUND_ALPHA, NULL);
169         if (a == 0)
170                 gconf_client_set_float(client,
171                                        KEY_GRAPH_BACKGROUND_ALPHA, 1.0, NULL);
172         return a;
173 }
174
175 static void set_graph_background_alpha(double alpha)
176 {
177         gconf_client_set_float(client, KEY_GRAPH_BACKGROUND_ALPHA, alpha, NULL);
178 }
179
180 static void set_background_color(const struct color *color)
181 {
182         char *scolor;
183
184         scolor = color_to_str(color);
185         if (!scolor)
186                 scolor = strdup(DEFAULT_GRAPH_BACKGROUND_COLOR);
187
188         gconf_client_set_string(client,
189                                 KEY_GRAPH_BACKGROUND_COLOR, scolor, NULL);
190
191         free(scolor);
192 }
193
194 static void set_foreground_color(const struct color *color)
195 {
196         char *str;
197
198         str = color_to_str(color);
199         if (!str)
200                 str = strdup(DEFAULT_GRAPH_FOREGROUND_COLOR);
201
202         gconf_client_set_string(client, KEY_GRAPH_FOREGROUND_COLOR, str, NULL);
203
204         free(str);
205 }
206
207 static char *get_sensor_att_key(const char *sid, const char *att)
208 {
209         char *esc_sid, *key;
210
211         esc_sid = gconf_escape_key(sid, -1);
212         /* [KEY_SENSORS]/[esc_sid]/[att] */
213         key = malloc(strlen(KEY_SENSORS)
214                      + 1 + 2 * strlen(esc_sid)
215                      + 1 + strlen(att) + 1);
216
217         sprintf(key, "%s/%s/%s", KEY_SENSORS, esc_sid, att);
218
219         free(esc_sid);
220
221         return key;
222 }
223
224 struct color *
225 config_get_sensor_color(const char *sid, const struct color *dft)
226 {
227         char *key, *scolor;
228         struct color *color;
229
230         key = get_sensor_att_key(sid, ATT_SENSOR_COLOR);
231
232         scolor = gconf_client_get_string(client, key, NULL);
233
234         color = NULL;
235
236         if (scolor)
237                 color = str_to_color(scolor);
238
239         if (!scolor || !color) {
240                 color = color_new(dft->red, dft->green, dft->blue);
241                 scolor = color_to_str(color);
242                 gconf_client_set_string(client, key, scolor, NULL);
243         }
244
245         free(scolor);
246         free(key);
247
248         return color;
249 }
250
251 void config_set_sensor_color(const char *sid, const struct color *color)
252 {
253         char *key, *scolor;
254
255         key = get_sensor_att_key(sid, ATT_SENSOR_COLOR);
256         scolor = color_to_str(color);
257
258         gconf_client_set_string(client, key, scolor, NULL);
259
260         free(scolor);
261         free(key);
262 }
263
264 int config_get_sensor_alarm_limit(const char *sid, int dft)
265 {
266         int res;
267         char *key;
268
269         key = get_sensor_att_key(sid, "alarmlimit");
270         res = gconf_client_get_int(client, key, NULL);
271         free(key);
272
273         return res ? res : dft;
274 }
275
276 void config_set_sensor_alarm_limit(const char *sid, int alarm_limit)
277 {
278         char *key;
279
280         key = get_sensor_att_key(sid, "alarmlimit");
281         gconf_client_set_int(client, key, alarm_limit, NULL);
282         free(key);
283 }
284
285 int config_get_sensor_alarm_enabled(const char *sid)
286 {
287         gboolean b;
288         char *key;
289
290         key = get_sensor_att_key(sid, ATT_SENSOR_ALARM_ENABLED);
291         b = gconf_client_get_bool(client, key, NULL);
292         free(key);
293
294         return b == TRUE;
295 }
296
297 void config_set_sensor_alarm_enabled(const char *sid, int enabled)
298 {
299         char *key;
300
301         key = get_sensor_att_key(sid, ATT_SENSOR_ALARM_ENABLED);
302         gconf_client_set_bool(client, key, enabled, NULL);
303         free(key);
304 }
305
306 int config_is_sensor_enabled(const char *sid)
307 {
308         gboolean b;
309         char *key;
310
311         key = get_sensor_att_key(sid, ATT_SENSOR_ENABLED);
312         b = gconf_client_get_bool(client, key, NULL);
313         free(key);
314
315         return b == TRUE;
316 }
317
318 void config_set_sensor_enabled(const char *sid, int enabled)
319 {
320         char *key;
321
322         key = get_sensor_att_key(sid, ATT_SENSOR_ENABLED);
323         gconf_client_set_bool(client, key, enabled, NULL);
324         free(key);
325 }
326
327 char *config_get_sensor_name(const char *sid)
328 {
329         char *name, *key;
330
331         key = get_sensor_att_key(sid, ATT_SENSOR_NAME);
332         name = gconf_client_get_string(client, key, NULL);
333         free(key);
334
335         return name;
336 }
337
338 void config_set_sensor_name(const char *sid, const char *name)
339 {
340         char *key;
341
342         key = get_sensor_att_key(sid, ATT_SENSOR_NAME);
343         gconf_client_set_string(client, key, name, NULL);
344         free(key);
345 }
346
347 static int is_window_decoration_enabled()
348 {
349         gboolean b;
350
351         b = gconf_client_get_bool(client,
352                                   KEY_INTERFACE_WINDOW_DECORATION_DISABLED,
353                                   NULL);
354
355         return b == FALSE;
356 }
357
358 static int is_window_keep_below_enabled()
359 {
360         gboolean b;
361
362         b = gconf_client_get_bool(client,
363                                   KEY_INTERFACE_WINDOW_KEEP_BELOW_ENABLED,
364                                   NULL);
365
366         return b == TRUE;
367 }
368
369 static void set_window_decoration_enabled(int enabled)
370 {
371         if (enabled)
372                 gconf_client_set_bool
373                     (client,
374                      KEY_INTERFACE_WINDOW_DECORATION_DISABLED, FALSE, NULL);
375         else
376                 gconf_client_set_bool
377                     (client,
378                      KEY_INTERFACE_WINDOW_DECORATION_DISABLED, TRUE, NULL);
379 }
380
381 static void set_window_keep_below_enabled(int enabled)
382 {
383         if (enabled)
384                 gconf_client_set_bool(client,
385                                       KEY_INTERFACE_WINDOW_KEEP_BELOW_ENABLED,
386                                       TRUE, NULL);
387         else
388                 gconf_client_set_bool(client,
389                                       KEY_INTERFACE_WINDOW_KEEP_BELOW_ENABLED,
390                                       FALSE, NULL);
391 }
392
393 /*
394  * Initializes the GConf client.
395  */
396 static void init()
397 {
398         if (!client)
399                 client = gconf_client_get_default();
400 }
401
402 void config_cleanup()
403 {
404         if (client) {
405                 g_object_unref(client);
406                 client = NULL;
407         }
408 }
409
410 struct config *config_load()
411 {
412         struct config *c;
413
414         init();
415
416         c = malloc(sizeof(struct config));
417
418         c->graph_bgcolor = get_background_color();
419         c->graph_fgcolor = get_foreground_color();
420         c->graph_bg_alpha = get_graph_background_alpha();
421         c->alpha_channel_enabled = is_alpha_channel_enabled();
422         c->sensorlist_position = get_sensorlist_position();
423         c->window_decoration_enabled = is_window_decoration_enabled();
424         c->window_keep_below_enabled = is_window_keep_below_enabled();
425
426         c->sensor_update_interval
427             = gconf_client_get_int(client, KEY_SENSOR_UPDATE_INTERVAL, NULL);
428         if (c->sensor_update_interval < 1)
429                 c->sensor_update_interval = 1;
430
431         c->graph_update_interval
432             = gconf_client_get_int(client, KEY_GRAPH_UPDATE_INTERVAL, NULL);
433         if (c->graph_update_interval < 1)
434                 c->graph_update_interval = 1;
435
436         c->graph_monitoring_duration
437             = gconf_client_get_int(client, KEY_GRAPH_MONITORING_DURATION, NULL);
438
439         if (c->graph_monitoring_duration < 1)
440                 c->graph_monitoring_duration = 10;
441
442         c->sensor_values_max_length
443             =
444             (c->graph_monitoring_duration * 60) / c->sensor_update_interval;
445         if (c->sensor_values_max_length < 3)
446                 c->sensor_values_max_length = 3;
447
448         c->menu_bar_disabled
449                 = gconf_client_get_bool(client,
450                                         KEY_INTERFACE_MENU_BAR_DISABLED,
451                                         NULL);
452
453         c->unity_launcher_count_disabled
454                 = gconf_client_get_bool
455                 (client,
456                  KEY_INTERFACE_UNITY_LAUNCHER_COUNT_DISABLED,
457                  NULL);
458
459         c->hide_on_startup
460                 = gconf_client_get_bool(client,
461                                         KEY_INTERFACE_HIDE_ON_STARTUP,
462                                         NULL);
463
464         c->window_restore_enabled
465                 = gconf_client_get_bool(client,
466                                         KEY_INTERFACE_WINDOW_RESTORE_ENABLED,
467                                         NULL);
468
469         c->window_x = gconf_client_get_int(client,
470                                            KEY_INTERFACE_WINDOW_X,
471                                            NULL);
472         c->window_y = gconf_client_get_int(client,
473                                            KEY_INTERFACE_WINDOW_Y,
474                                            NULL);
475         c->window_w = gconf_client_get_int(client,
476                                            KEY_INTERFACE_WINDOW_W,
477                                            NULL);
478         c->window_h = gconf_client_get_int(client,
479                                            KEY_INTERFACE_WINDOW_H,
480                                            NULL);
481         c->window_divider_pos
482                 = gconf_client_get_int(client,
483                                        KEY_INTERFACE_WINDOW_DIVIDER_POS,
484                                        NULL);
485
486         if (!c->window_restore_enabled || !c->window_w || !c->window_h) {
487                 c->window_w = 800;
488                 c->window_h = 200;
489         }
490
491         c->temperature_unit = gconf_client_get_int
492                 (client, KEY_INTERFACE_TEMPERATURE_UNIT, NULL);
493
494         return c;
495 }
496
497 void config_save(const struct config *c)
498 {
499         set_background_color(c->graph_bgcolor);
500         set_foreground_color(c->graph_fgcolor);
501         set_graph_background_alpha(c->graph_bg_alpha);
502         set_sensorlist_position(c->sensorlist_position);
503         set_window_decoration_enabled(c->window_decoration_enabled);
504         set_window_keep_below_enabled(c->window_keep_below_enabled);
505
506         gconf_client_set_int(client,
507                              KEY_GRAPH_UPDATE_INTERVAL,
508                              c->graph_update_interval, NULL);
509
510         gconf_client_set_int(client,
511                              KEY_GRAPH_MONITORING_DURATION,
512                              c->graph_monitoring_duration, NULL);
513
514         gconf_client_set_int(client,
515                              KEY_SENSOR_UPDATE_INTERVAL,
516                              c->sensor_update_interval, NULL);
517
518         gconf_client_set_bool(client,
519                               KEY_INTERFACE_MENU_BAR_DISABLED,
520                               c->menu_bar_disabled, NULL);
521
522         gconf_client_set_bool(client,
523                               KEY_INTERFACE_UNITY_LAUNCHER_COUNT_DISABLED,
524                               c->unity_launcher_count_disabled, NULL);
525
526         gconf_client_set_bool(client,
527                               KEY_INTERFACE_HIDE_ON_STARTUP,
528                               c->hide_on_startup, NULL);
529
530         gconf_client_set_bool(client,
531                               KEY_INTERFACE_WINDOW_RESTORE_ENABLED,
532                               c->window_restore_enabled,
533                               NULL);
534
535         gconf_client_set_int(client,
536                              KEY_INTERFACE_WINDOW_X,
537                              c->window_x,
538                              NULL);
539         gconf_client_set_int(client,
540                              KEY_INTERFACE_WINDOW_Y,
541                              c->window_y,
542                              NULL);
543         gconf_client_set_int(client,
544                              KEY_INTERFACE_WINDOW_W,
545                              c->window_w,
546                              NULL);
547         gconf_client_set_int(client,
548                              KEY_INTERFACE_WINDOW_H,
549                              c->window_h,
550                              NULL);
551
552         gconf_client_set_int(client,
553                              KEY_INTERFACE_WINDOW_DIVIDER_POS,
554                              c->window_divider_pos,
555                              NULL);
556
557         gconf_client_set_int(client,
558                              KEY_INTERFACE_TEMPERATURE_UNIT,
559                              c->temperature_unit,
560                              NULL);
561 }