i3 - improved tiling WM


Added different format string for volume in case it is muted.

Patch status: needinfo

Patch by Gereon Kremer

Long description:

If the volume is muted, the volume level would simply be displayed as zero and the color changed to color_degraded.
This patch lets the user define a custom format string for when the volume is muted.
The default value is "♪: muted" ("♪: %volume" being the usual format).

To apply this patch, use:
curl http://cr.i3wm.org/patch/314/raw.patch | git am

b/i3status.c

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@@ -286,6 +286,7 @@ int main(int argc, char *argv[]) {
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         cfg_opt_t volume_opts[] = {
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                 CFG_STR("format", "♪: %volume", CFGF_NONE),
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+                CFG_STR("format_muted", "♪: muted", CFGF_NONE),
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                 CFG_STR("device", "default", CFGF_NONE),
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                 CFG_STR("mixer", "Master", CFGF_NONE),
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                 CFG_INT("mixer_idx", 0, CFGF_NONE),
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@@ -513,6 +514,7 @@ int main(int argc, char *argv[]) {
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                         CASE_SEC_TITLE("volume") {
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                                 SEC_OPEN_MAP("volume");
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                                 print_volume(json_gen, buffer, cfg_getstr(sec, "format"),
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+                                             cfg_getstr(sec, "format_muted"),
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                                              cfg_getstr(sec, "device"),
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                                              cfg_getstr(sec, "mixer"),
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                                              cfg_getint(sec, "mixer_idx"));

b/include/i3status.h

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@@ -156,7 +156,7 @@ void print_cpu_temperature_info(yajl_gen json_gen, char *buffer, int zone, const
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 void print_cpu_usage(yajl_gen json_gen, char *buffer, const char *format);
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 void print_eth_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down);
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 void print_load(yajl_gen json_gen, char *buffer, const char *format, const float max_threshold);
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-void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *device, const char *mixer, int mixer_idx);
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+void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *fmt_muted, const char *device, const char *mixer, int mixer_idx);
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 bool process_runs(const char *path);
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 /* socket file descriptor for general purposes */

b/src/print_volume.c

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@@ -26,7 +26,7 @@
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 #include "i3status.h"
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 #include "queue.h"
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-void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *device, const char *mixer, int mixer_idx) {
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+void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *fmt_muted, const char *device, const char *mixer, int mixer_idx) {
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         char *outwalk = buffer;
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 	int pbval = 1;
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@@ -104,7 +104,7 @@ void print_volume(yajl_gen json_gen, char *buffer, const char *fmt, const char *
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 			fprintf (stderr, "i3status: ALSA: playback_switch: %s\n", snd_strerror(err));
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 		if (!pbval)  {
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 			START_COLOR("color_degraded");
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-			avg = 0;
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+			fmt = fmt_muted;
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 		}
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 	}
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