1 /**************************************************************************
5 * Copyright (C) 2009 Sebastian Reichel <elektranox@gmail.com>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version 2
9 * or any later version as published by the Free Software Foundation.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 **************************************************************************/
24 #include <cairo-xlib.h>
25 #include <pango/pangocairo.h>
27 #if defined(__OpenBSD__) || defined(__NetBSD__)
28 #include <machine/apmvar.h>
30 #include <sys/ioctl.h>
34 #if defined(__FreeBSD__)
35 #include <sys/types.h>
36 #include <sys/sysctl.h>
46 PangoFontDescription
*bat1_font_desc
;
47 PangoFontDescription
*bat2_font_desc
;
48 struct batstate battery_state
;
51 static timeout
* battery_timeout
;
53 static char buf_bat_percentage
[10];
54 static char buf_bat_time
[20];
56 int8_t battery_low_status
;
57 unsigned char battery_low_cmd_send
;
58 char *battery_low_cmd
;
59 char *path_energy_now
;
60 char *path_energy_full
;
61 char *path_current_now
;
64 #if defined(__OpenBSD__) || defined(__NetBSD__)
68 void update_batterys(void* arg
)
72 for (i
=0 ; i
< nb_panel
; i
++) {
73 if (battery_state
.percentage
>= percentage_hide
) {
74 if (panel1
[i
].battery
.area
.on_screen
== 1) {
75 panel1
[i
].battery
.area
.on_screen
= 0;
76 panel1
[i
].area
.resize
= 1;
81 if (panel1
[i
].battery
.area
.on_screen
== 0) {
82 panel1
[i
].battery
.area
.on_screen
= 1;
83 panel1
[i
].area
.resize
= 1;
86 if (panel1
[i
].battery
.area
.on_screen
== 1) {
87 panel1
[i
].battery
.area
.resize
= 1;
93 void default_battery()
96 percentage_hide
= 101;
97 battery_low_cmd_send
= 0;
103 path_energy_full
= 0;
104 path_current_now
= 0;
106 #if defined(__OpenBSD__) || defined(__NetBSD__)
111 void cleanup_battery()
113 if (bat1_font_desc
) pango_font_description_free(bat1_font_desc
);
114 if (bat2_font_desc
) pango_font_description_free(bat2_font_desc
);
115 if (path_energy_now
) g_free(path_energy_now
);
116 if (path_energy_full
) g_free(path_energy_full
);
117 if (path_current_now
) g_free(path_current_now
);
118 if (path_status
) g_free(path_status
);
119 if (battery_low_cmd
) g_free(battery_low_cmd
);
121 #if defined(__OpenBSD__) || defined(__NetBSD__)
122 if ((apm_fd
!= -1) && (close(apm_fd
) == -1))
123 warn("cannot close /dev/apm");
130 if (!battery_enabled
) return;
132 #if defined(__OpenBSD__) || defined(__NetBSD__)
133 apm_fd
= open("/dev/apm", O_RDONLY
);
135 warn("init_battery: failed to open /dev/apm.");
140 #elif !defined(__FreeBSD__)
143 GError
*error
= NULL
;
144 const char *entryname
;
145 char *battery_dir
= 0;
147 directory
= g_dir_open("/sys/class/power_supply", 0, &error
);
151 while ((entryname
=g_dir_read_name(directory
))) {
152 if (strncmp(entryname
,"AC", 2) == 0) continue;
154 char *path1
= g_build_filename("/sys/class/power_supply", entryname
, "present", NULL
);
155 if (g_file_test (path1
, G_FILE_TEST_EXISTS
)) {
157 battery_dir
= g_build_filename("/sys/class/power_supply", entryname
, NULL
);
164 g_dir_close(directory
);
166 fprintf(stderr
, "ERROR: battery applet can't found power_supply\n");
171 char *path1
= g_build_filename(battery_dir
, "energy_now", NULL
);
172 if (g_file_test (path1
, G_FILE_TEST_EXISTS
)) {
173 path_energy_now
= g_build_filename(battery_dir
, "energy_now", NULL
);
174 path_energy_full
= g_build_filename(battery_dir
, "energy_full", NULL
);
177 char *path2
= g_build_filename(battery_dir
, "charge_now", NULL
);
178 if (g_file_test (path2
, G_FILE_TEST_EXISTS
)) {
179 path_energy_now
= g_build_filename(battery_dir
, "charge_now", NULL
);
180 path_energy_full
= g_build_filename(battery_dir
, "charge_full", NULL
);
183 fprintf(stderr
, "ERROR: can't found energy_* or charge_*\n");
187 if (path_energy_now
&& path_energy_full
) {
188 path_current_now
= g_build_filename(battery_dir
, "current_now", NULL
);
189 path_status
= g_build_filename(battery_dir
, "status", NULL
);
192 FILE *fp1
, *fp2
, *fp3
, *fp4
;
193 fp1
= fopen(path_energy_now
, "r");
194 fp2
= fopen(path_energy_full
, "r");
195 fp3
= fopen(path_current_now
, "r");
196 fp4
= fopen(path_status
, "r");
197 if (fp1
== NULL
|| fp2
== NULL
|| fp3
== NULL
|| fp4
== NULL
) {
200 fprintf(stderr
, "ERROR: battery applet can't open energy_now\n");
212 if (battery_enabled
&& battery_timeout
==0)
213 battery_timeout
= add_timeout(10, 10000, update_batterys
, 0);
217 void init_battery_panel(void *p
)
219 Panel
*panel
= (Panel
*)p
;
220 Battery
*battery
= &panel
->battery
;
221 int bat_percentage_height
, bat_percentage_height_ink
, bat_time_height
, bat_time_height_ink
;
223 if (!battery_enabled
)
226 battery
->area
.parent
= p
;
227 battery
->area
.panel
= p
;
228 battery
->area
._draw_foreground
= draw_battery
;
229 battery
->area
.size_mode
= SIZE_BY_CONTENT
;
230 battery
->area
._resize
= resize_battery
;
231 battery
->area
.resize
= 1;
232 battery
->area
.redraw
= 1;
233 battery
->area
.on_screen
= 1;
235 update_battery(&battery_state
);
236 snprintf(buf_bat_percentage
, sizeof(buf_bat_percentage
), "%d%%", battery_state
.percentage
);
237 snprintf(buf_bat_time
, sizeof(buf_bat_time
), "%02d:%02d", battery_state
.time
.hours
, battery_state
.time
.minutes
);
239 get_text_size(bat1_font_desc
, &bat_percentage_height_ink
, &bat_percentage_height
, panel
->area
.height
, buf_bat_percentage
, strlen(buf_bat_percentage
));
240 get_text_size(bat2_font_desc
, &bat_time_height_ink
, &bat_time_height
, panel
->area
.height
, buf_bat_time
, strlen(buf_bat_time
));
242 if (panel_horizontal
) {
243 // panel horizonal => fixed height and posy
244 battery
->area
.posy
= panel
->area
.bg
->border
.width
+ panel
->area
.paddingy
;
245 battery
->area
.height
= panel
->area
.height
- (2 * battery
->area
.posy
);
248 // panel vertical => fixed width, height, posy and posx
249 battery
->area
.posx
= panel
->area
.bg
->border
.width
+ panel
->area
.paddingy
;
250 battery
->area
.width
= panel
->area
.width
- (2 * panel
->area
.bg
->border
.width
) - (2 * panel
->area
.paddingy
);
253 battery
->bat1_posy
= (battery
->area
.height
- bat_percentage_height
) / 2;
254 battery
->bat1_posy
-= ((bat_time_height_ink
+ 2) / 2);
255 battery
->bat2_posy
= battery
->bat1_posy
+ bat_percentage_height
+ 2 - (bat_percentage_height
- bat_percentage_height_ink
)/2 - (bat_time_height
- bat_time_height_ink
)/2;
259 void update_battery() {
260 #if !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__FreeBSD__)
261 // unused on OpenBSD, silence compiler warnings
264 int64_t current_now
= 0;
266 #if defined(__FreeBSD__)
270 int64_t energy_now
= 0, energy_full
= 0;
272 int8_t new_percentage
= 0;
274 #if defined(__OpenBSD__) || defined(__NetBSD__)
275 struct apm_power_info info
;
276 if (ioctl(apm_fd
, APM_IOC_GETPOWER
, &(info
)) < 0)
277 warn("power update: APM_IOC_GETPOWER");
279 // best attempt at mapping to linux battery states
280 battery_state
.state
= BATTERY_UNKNOWN
;
281 switch (info
.battery_state
) {
282 case APM_BATT_CHARGING
:
283 battery_state
.state
= BATTERY_CHARGING
;
286 battery_state
.state
= BATTERY_DISCHARGING
;
290 if (info
.battery_life
== 100)
291 battery_state
.state
= BATTERY_FULL
;
293 // no mapping for openbsd really
297 if (info
.minutes_left
!= -1)
298 seconds
= info
.minutes_left
* 60;
302 new_percentage
= info
.battery_life
;
304 #elif defined(__FreeBSD__)
305 len
= sizeof(sysctl_out
);
307 if (sysctlbyname("hw.acpi.battery.state", &sysctl_out
, &len
, NULL
, 0) != 0)
308 fprintf(stderr
, "power update: no such sysctl");
310 // attemp to map the battery state to linux
311 battery_state
.state
= BATTERY_UNKNOWN
;
315 battery_state
.state
= BATTERY_DISCHARGING
;
318 battery_state
.state
= BATTERY_CHARGING
;
321 battery_state
.state
= BATTERY_FULL
;
325 // no mapping for freebsd
329 if (sysctlbyname("hw.acpi.battery.time", &sysctl_out
, &len
, NULL
, 0) != 0)
332 seconds
= sysctl_out
* 60;
338 if (sysctlbyname("hw.acpi.battery.life", &sysctl_out
, &len
, NULL
, 0) != 0)
341 new_percentage
= sysctl_out
;
344 fp
= fopen(path_status
, "r");
346 if (fgets(tmp
, sizeof tmp
, fp
)) {
347 battery_state
.state
= BATTERY_UNKNOWN
;
348 if(strcasecmp(tmp
, "Charging\n")==0) battery_state
.state
= BATTERY_CHARGING
;
349 if(strcasecmp(tmp
, "Discharging\n")==0) battery_state
.state
= BATTERY_DISCHARGING
;
350 if(strcasecmp(tmp
, "Full\n")==0) battery_state
.state
= BATTERY_FULL
;
355 fp
= fopen(path_energy_now
, "r");
357 if (fgets(tmp
, sizeof tmp
, fp
)) energy_now
= atoi(tmp
);
361 fp
= fopen(path_energy_full
, "r");
363 if (fgets(tmp
, sizeof tmp
, fp
)) energy_full
= atoi(tmp
);
367 fp
= fopen(path_current_now
, "r");
369 if (fgets(tmp
, sizeof tmp
, fp
)) current_now
= atoi(tmp
);
373 if(current_now
> 0) {
374 switch(battery_state
.state
) {
375 case BATTERY_CHARGING
:
376 seconds
= 3600 * (energy_full
- energy_now
) / current_now
;
378 case BATTERY_DISCHARGING
:
379 seconds
= 3600 * energy_now
/ current_now
;
388 battery_state
.time
.hours
= seconds
/ 3600;
389 seconds
-= 3600 * battery_state
.time
.hours
;
390 battery_state
.time
.minutes
= seconds
/ 60;
391 seconds
-= 60 * battery_state
.time
.minutes
;
392 battery_state
.time
.seconds
= seconds
;
395 new_percentage
= (energy_now
*100)/energy_full
;
397 if(battery_low_status
> new_percentage
&& battery_state
.state
== BATTERY_DISCHARGING
&& !battery_low_cmd_send
) {
398 tint_exec(battery_low_cmd
);
399 battery_low_cmd_send
= 1;
401 if(battery_low_status
< new_percentage
&& battery_state
.state
== BATTERY_CHARGING
&& battery_low_cmd_send
) {
402 battery_low_cmd_send
= 0;
405 battery_state
.percentage
= new_percentage
;
407 // clamp percentage to 100 in case battery is misreporting that its current charge is more than its max
408 if(battery_state
.percentage
> 100) {
409 battery_state
.percentage
= 100;
414 void draw_battery (void *obj
, cairo_t
*c
)
416 Battery
*battery
= obj
;
419 layout
= pango_cairo_create_layout (c
);
422 pango_layout_set_font_description(layout
, bat1_font_desc
);
423 pango_layout_set_width(layout
, battery
->area
.width
* PANGO_SCALE
);
424 pango_layout_set_alignment(layout
, PANGO_ALIGN_CENTER
);
425 pango_layout_set_text(layout
, buf_bat_percentage
, strlen(buf_bat_percentage
));
427 cairo_set_source_rgba(c
, battery
->font
.color
[0], battery
->font
.color
[1], battery
->font
.color
[2], battery
->font
.alpha
);
429 pango_cairo_update_layout(c
, layout
);
430 cairo_move_to(c
, 0, battery
->bat1_posy
);
431 pango_cairo_show_layout(c
, layout
);
433 pango_layout_set_font_description(layout
, bat2_font_desc
);
434 pango_layout_set_indent(layout
, 0);
435 pango_layout_set_text(layout
, buf_bat_time
, strlen(buf_bat_time
));
436 pango_layout_set_width(layout
, battery
->area
.width
* PANGO_SCALE
);
438 pango_cairo_update_layout(c
, layout
);
439 cairo_move_to(c
, 0, battery
->bat2_posy
);
440 pango_cairo_show_layout(c
, layout
);
442 g_object_unref(layout
);
446 int resize_battery(void *obj
)
448 Battery
*battery
= obj
;
450 int percentage_width
, time_width
, new_width
, ret
= 0;
452 percentage_width
= time_width
= 0;
453 battery
->area
.redraw
= 1;
454 snprintf(buf_bat_percentage
, sizeof(buf_bat_percentage
), "%d%%", battery_state
.percentage
);
455 if(battery_state
.state
== BATTERY_FULL
) {
456 strcpy(buf_bat_time
, "Full");
458 snprintf(buf_bat_time
, sizeof(buf_bat_time
), "%02d:%02d", battery_state
.time
.hours
, battery_state
.time
.minutes
);
460 // vertical panel doen't adjust width
461 if (!panel_horizontal
) {
462 // battery->area.posy = panel->clock.area.posy + panel->clock.area.height + panel->area.paddingx;
463 // battery->area.height = (2 * battery->area.paddingxlr) + (bat_time_height + bat_percentage_height);
470 pmap
= XCreatePixmap(server
.dsp
, server
.root_win
, battery
->area
.width
, battery
->area
.height
, server
.depth
);
472 cs
= cairo_xlib_surface_create(server
.dsp
, pmap
, server
.visual
, battery
->area
.width
, battery
->area
.height
);
473 c
= cairo_create(cs
);
474 layout
= pango_cairo_create_layout(c
);
477 pango_layout_set_font_description(layout
, bat1_font_desc
);
478 pango_layout_set_indent(layout
, 0);
479 pango_layout_set_text(layout
, buf_bat_percentage
, strlen(buf_bat_percentage
));
480 pango_layout_get_pixel_size(layout
, &percentage_width
, NULL
);
482 pango_layout_set_font_description(layout
, bat2_font_desc
);
483 pango_layout_set_indent(layout
, 0);
484 pango_layout_set_text(layout
, buf_bat_time
, strlen(buf_bat_time
));
485 pango_layout_get_pixel_size(layout
, &time_width
, NULL
);
487 if(percentage_width
> time_width
) new_width
= percentage_width
;
488 else new_width
= time_width
;
490 int old_width
= battery
->area
.width
;
492 new_width
+= (2*battery
->area
.paddingxlr
) + (2*battery
->area
.bg
->border
.width
);
493 battery
->area
.width
= new_width
+ 1;
495 if (new_width
> old_width
|| new_width
< (old_width
-6)) {
496 // refresh and resize other objects on panel
497 // we try to limit the number of refresh
498 // printf("battery_width %d, new_width %d\n", battery->area.width, new_width);
502 g_object_unref (layout
);
504 cairo_surface_destroy (cs
);
505 XFreePixmap (server
.dsp
, pmap
);