i3 - improved tiling WM

Added bitrate_format options to wireless configuration block

Patch status: superseded

Patch by Enrico Carlesso

To apply this patch, use:
curl http://cr.i3wm.org/patch/676/raw.patch | git am

b/i3status.c

16 
@@ -292,6 +292,7 @@ int main(int argc, char *argv[]) {
17 
         cfg_opt_t wireless_opts[] = {
18 
                 CFG_STR("format_up", "W: (%quality at %essid, %bitrate) %ip", CFGF_NONE),
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                 CFG_STR("format_down", "W: down", CFGF_NONE),
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+                CFG_STR("bitrate_format", "%g %c/s", CFGF_NONE),
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                 CFG_CUSTOM_ALIGN_OPT,
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                 CFG_CUSTOM_COLOR_OPTS,
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                 CFG_CUSTOM_MIN_WIDTH_OPT,
24 
@@ -576,7 +577,7 @@ int main(int argc, char *argv[]) {
25
26 
                         CASE_SEC_TITLE("wireless") {
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                                 SEC_OPEN_MAP("wireless");
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-                                print_wireless_info(json_gen, buffer, title, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
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+                                print_wireless_info(json_gen, buffer, title, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"), cfg_getstr(sec, "bitrate_format"));
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                                 SEC_CLOSE_MAP;
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                         }
32

b/include/i3status.h

37 
@@ -142,6 +142,11 @@ enum { O_DZEN2, O_XMOBAR, O_I3BAR, O_TERM, O_NONE } output_format;
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 		} \
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 	} while (0)
40
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+#define KILO 1e3
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+#define MEGA 1e6
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+#define GIGA 1e9
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+
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+
46
47 
 typedef enum { CS_DISCHARGING, CS_CHARGING, CS_FULL } charging_status_t;
48
49 
@@ -176,7 +181,7 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
50 
 void print_time(yajl_gen json_gen, char *buffer, const char *format, const char *tz, time_t t);
51 
 void print_ddate(yajl_gen json_gen, char *buffer, const char *format, time_t t);
52 
 const char *get_ip_addr();
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-void print_wireless_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down);
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+void print_wireless_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down, const char *bitrate_format);
55 
 void print_run_watch(yajl_gen json_gen, char *buffer, const char *title, const char *pidfile, const char *format);
56 
 void print_path_exists(yajl_gen json_gen, char *buffer, const char *title, const char *path, const char *format);
57 
 void print_cpu_temperature_info(yajl_gen json_gen, char *buffer, int zone, const char *path, const char *format, int);

b/man/i3status.man

62 
@@ -63,6 +63,7 @@ order += "tztime berlin"
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 wireless wlan0 {
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         format_up = "W: (%quality at %essid, %bitrate) %ip"
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         format_down = "W: down"
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+        bitrate_format = "%g %cb/s"
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 }
68
69 
 ethernet eth0 {
70 
@@ -272,12 +273,19 @@ something is active, like for example a VPN tunnel managed by NetworkManager.
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 Gets the link quality and ESSID of the given wireless network interface. You
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 can specify different format strings for the network being connected or not
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-connected.
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+connected. You can also provide a printf-like format string for bitrate. This
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+can be especially useful if you have a dual band access point and the default
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+format displays values such as 96, 130, 158.6 changing the width of the text.
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+Setting bitrate format to "%5.1f %cb/s" will always take the same amount of
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+characters. The first argument is a float number indicating the scaled speed,
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+the second is a character for the scale, K for Kilo, M for Mega and G for Giga.
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 *Example order*: +wireless wlan0+
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84 
 *Example format*: +W: (%quality at %essid, %bitrate) %ip+
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+*Example bitrate format*: +%g %cb/s+
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+
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 === Ethernet
89
90 
 Gets the IP address and (if possible) the link speed of the given ethernet

b/src/print_wireless_info.c

95 
@@ -71,6 +71,40 @@ typedef struct {
96 
         int bitrate;
97 
 } wireless_info_t;
98
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+/*
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+ * Format bitrate with provided formatter.
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+ *
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+ * Basically, a clone of iw_print_bitrate, but accepting a format instead of forcing "%g %cb/s"
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+ * see http://sourcecodebrowser.com/wireless-tools/28/iwlib_8c.html#ad1674f1115db41e1f3405f915c772783
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+ *
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+ */
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+void i3_iw_print_bitrate(char *buffer, int buflen, int bitrate, const char *bitrate_format)
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+{
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+        double      rate = bitrate;
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+        char        scale;
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+        int         divisor;
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+
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+        if(rate >= GIGA)
113 
+        {
114 
+                scale = 'G';
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+                divisor = GIGA;
116 
+        }
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+        else
118 
+        {
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+                if(rate >= MEGA)
120 
+                {
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+                        scale = 'M';
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+                        divisor = MEGA;
123 
+                }
124 
+                else
125 
+                {
126 
+                        scale = 'k';
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+                        divisor = KILO;
128 
+                }
129 
+        }
130 
+        snprintf(buffer, buflen, bitrate_format, rate / divisor, scale);
131 
+}
132 
+
133 
 static int get_wireless_info(const char *interface, wireless_info_t *info) {
134 
         memset(info, 0, sizeof(wireless_info_t));
135
136 
@@ -320,7 +354,7 @@ static int get_wireless_info(const char *interface, wireless_info_t *info) {
137 
 	return 0;
138 
 }
139
140 
-void print_wireless_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down) {
141 
+void print_wireless_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down, const char *bitrate_format) {
142 
         const char *walk;
143 
         char *outwalk = buffer;
144 
         wireless_info_t info;
145 
@@ -404,7 +438,7 @@ void print_wireless_info(yajl_gen json_gen, char *buffer, const char *interface,
146 
                 if (BEGINS_WITH(walk+1, "bitrate")) {
147 
                         char br_buffer[128];
148
149 
-                        iw_print_bitrate(br_buffer, sizeof(br_buffer), info.bitrate);
150 
+                        i3_iw_print_bitrate(br_buffer, sizeof(br_buffer), info.bitrate, bitrate_format);
151
152 
                         outwalk += sprintf(outwalk, "%s", br_buffer);
153 
                         walk += strlen("bitrate");