diff options
| -rw-r--r-- | Makefile.am | 2 | ||||
| -rw-r--r-- | redshift.1 | 73 | ||||
| -rw-r--r-- | src/location-gnome-clock.c | 98 |
3 files changed, 136 insertions, 37 deletions
diff --git a/Makefile.am b/Makefile.am index 14335fa..a4cd32b 100644 --- a/Makefile.am +++ b/Makefile.am @@ -22,6 +22,8 @@ desktopdir = @datadir@/applications desktop_DATA = data/applications/gtk-redshift.desktop endif +# man page +dist_man1_MANS = redshift.1 EXTRA_DIST = \ $(hicolor_icon_DATA) \ diff --git a/redshift.1 b/redshift.1 new file mode 100644 index 0000000..8a1560b --- /dev/null +++ b/redshift.1 @@ -0,0 +1,73 @@ +.TH REDSHIFT: "1" "August 2010" "redshift" "User Commands" +.SH NAME +redshift \- Set color temperature of display according to time of day. +.SH SYNOPSIS +.B redshift +\fI-l LAT:LON -t DAY:NIGHT \fR[\fIOPTIONS\fR...] +.SH DESCRIPTION +.B redshift +adjusts the color temperature of your screen according to your +surroundings. This may help your eyes hurt less if you are working in +front of the screen at night. + +The color temperature is set according to the position of the sun. A +different color temperature is set during night and daytime. During +twilight and early morning, the color temperature transitions smoothly +from night to daytime temperature to allow your eyes to slowly +adapt. +.SH OPTIONS +.TP +\fB\-h\fR +Display this help message +.TP +\fB\-v\fR +Verbose output +.TP +\fB\-g\fR R:G:B +Additional gamma correction to apply +.TP +\fB\-l\fR LAT:LON +Your current location +.TP +\fB\-l\fR PROVIDER +Select provider for automatic location updates +(Type `list' to see available providers) +.TP +\fB\-m\fR METHOD +Method to use to set color temperature +(Type `list' to see available methods) +.TP +\fB\-o\fR +One shot mode (do not continously adjust color temperature) +.TP +\fB\-x\fR +Reset mode (remove adjustment from screen) +.TP +\fB\-r\fR +Disable temperature transitions +.TP +\fB\-t\fR DAY:NIGHT +Color temperature to set at daytime/night +.PP +Default values: +.IP +Daytime temperature: 5500K +Night temperature: 3700K +.SH EXAMPLE +Example for Copenhagen, Denmark: +.IP +$ redshift -l 55.7:12.6 -t 5700:3600 -g 0.8 -m vidmode -v +.SH AUTHOR +.B redshift +was written by Jon Lund Steffensen <jonlst@gmail.com>. +.PP +Both +.B redshift +and this manual page are released under the GNU General Public +License, version 3. +.SH BUGS +Please report bugs to <https://bugs.launchpad.net/redshift> +.SH KNOWN ISSUES +Redshift won’t affect the color of your cursor when your graphics driver +is configured to use hardware cursors. Some graphics drivers have an +option to disable hardware cursors in xorg.conf. diff --git a/src/location-gnome-clock.c b/src/location-gnome-clock.c index 2dd029d..8c317ed 100644 --- a/src/location-gnome-clock.c +++ b/src/location-gnome-clock.c @@ -32,6 +32,41 @@ #endif +/* Find current selected city for the clock applet with the specified id. + Returns NULL if not found. */ +static char * +find_current_city(GConfClient *client, const char *id) +{ + GError *error = NULL; + + char *current_city = NULL; + char *cities_key = g_strdup_printf("/apps/panel/applets/%s" + "/prefs/cities", id); + GSList *cities = gconf_client_get_list(client, + cities_key, + GCONF_VALUE_STRING, &error); + + if (error) { + fprintf(stderr, _("Error reading city list: `%s'.\n"), + cities_key); + g_free(cities_key); + return NULL; + } + + g_free(cities_key); + + for (GSList *city = cities; city != NULL; + city = g_slist_next(city)) { + char *city_spec = city->data; + char *c = strstr(city_spec, "current=\"true\""); + if (c) current_city = g_strdup(city_spec); + g_free(city->data); + } + g_slist_free(cities); + + return current_city; +} + int location_gnome_clock_init(location_gnome_clock_state_t *state) { @@ -40,6 +75,7 @@ location_gnome_clock_init(location_gnome_clock_state_t *state) GError *error = NULL; GConfClient *client = gconf_client_get_default(); + /* Get a list of active applets in the panel. */ GSList *applets = gconf_client_get_list(client, "/apps/panel/general/applet_id_list", GCONF_VALUE_STRING, &error); @@ -50,60 +86,43 @@ location_gnome_clock_init(location_gnome_clock_state_t *state) return -1; } - char *cities_key = NULL; + /* Go through each applet and check if it is a clock applet. + When a clock applet is found, check whether there is a + city selected as the current city. */ char *current_city = NULL; + + /* Keep track of the number of clock applets found to be able to give + better error output if something fails. */ + int clock_applet_count = 0; + for (GSList *applet = applets; applet != NULL; applet = g_slist_next(applet)) { - char *path = applet->data; + char *id = applet->data; if (current_city == NULL) { char *key = g_strdup_printf("/apps/panel/applets/%s" - "/bonobo_iid", path); + "/bonobo_iid", id); char *bonobo_iid = gconf_client_get_string(client, key, &error); - if (!error && bonobo_iid != NULL) { - if (!strcmp(bonobo_iid, - "OAFIID:GNOME_ClockApplet")) { - cities_key = g_strdup_printf( - "/apps/panel/applets/%s" - "/prefs/cities", path); - - GSList *cities = gconf_client_get_list(client, cities_key, - GCONF_VALUE_STRING, &error); - - if (error) { - fprintf(stderr, _("Error reading city list: `%s'.\n"), - cities_key); - g_free(cities_key); - g_object_unref(client); - return -1; - } - - g_free(cities_key); - - for (GSList *city = cities; city != NULL; - city = g_slist_next(city)) { - char *city_spec = city->data; - char *c = strstr(city_spec, "current=\"true\""); - if (c) current_city = g_strdup(city_spec); - g_free(city->data); - } - g_slist_free(cities); - - } - g_free(bonobo_iid); + if (!error && bonobo_iid != NULL && + !strcmp(bonobo_iid, "OAFIID:GNOME_ClockApplet")) { + clock_applet_count += 1; + current_city = find_current_city(client, id); } + g_free(bonobo_iid); g_free(key); } - g_free(path); + g_free(id); } g_slist_free(applets); + g_object_unref(client); - if (cities_key == NULL) { + /* Check whether an applet and a current city was found. */ + + if (clock_applet_count == 0) { fputs(_("No clock applet was found.\n"), stderr); - g_object_unref(client); return -1; } @@ -112,13 +131,18 @@ location_gnome_clock_init(location_gnome_clock_state_t *state) return -1; } + /* Find coords for selected city and parse as number. */ + char *lat_str = strstr(current_city, "latitude=\""); char *lon_str = strstr(current_city, "longitude=\""); if (lat_str == NULL || lon_str == NULL) { fputs(_("Location not specified for city.\n"), stderr); + g_free(current_city); return -1; } + g_free(current_city); + char *lat_num_str = lat_str + strlen("latitude=\""); char *lon_num_str = lon_str + strlen("longitude=\""); |