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-rw-r--r--i3status.c83
-rw-r--r--include/i3status.h24
-rw-r--r--man/i3status.man29
3 files changed, 136 insertions, 0 deletions
diff --git a/i3status.c b/i3status.c
index 8d8536c..3733cf0 100644
--- a/i3status.c
+++ b/i3status.c
@@ -11,6 +11,7 @@
* See file LICENSE for license information.
*
*/
+#include <limits.h>
#include <string.h>
#include <stdio.h>
#include <stdbool.h>
@@ -35,6 +36,9 @@
#define exit_if_null(pointer, ...) { if (pointer == NULL) die(__VA_ARGS__); }
+#define CFG_CUSTOM_ALIGN_OPT \
+ CFG_STR_CB("align", NULL, CFGF_NONE, parse_align)
+
#define CFG_COLOR_OPTS(good, degraded, bad) \
CFG_STR("color_good", good, CFGF_NONE), \
CFG_STR("color_degraded", degraded, CFGF_NONE), \
@@ -42,6 +46,9 @@
#define CFG_CUSTOM_COLOR_OPTS CFG_COLOR_OPTS(NULL, NULL, NULL)
+#define CFG_CUSTOM_MIN_WIDTH_OPT \
+ CFG_PTR_CB("min_width", NULL, CFGF_NONE, parse_min_width, free)
+
/* socket file descriptor for general purposes */
int general_socket;
@@ -89,6 +96,54 @@ static char *sstrdup(const char *str) {
return result;
}
+/*
+ * Parses the "align" module option (to validate input).
+ */
+static int parse_align(cfg_t *context, cfg_opt_t *option, const char *value, void *result) {
+ if (strcasecmp(value, "left") != 0 && strcasecmp(value,"right") != 0 && strcasecmp(value, "center") != 0)
+ die("Invalid alignment attribute found in section %s, line %d: \"%s\"\n"
+ "Valid attributes are: left, center, right\n", context->name, context->line, value);
+
+ char **cresult = result;
+ *cresult = sstrdup(value);
+
+ return 0;
+}
+
+/*
+ * Parses the "min_width" module option whose value can either be a string or an integer.
+ */
+static int parse_min_width(cfg_t *context, cfg_opt_t *option, const char *value, void *result) {
+ char *end;
+ long num = strtol(value, &end, 10);
+
+ if (num < 0)
+ die("Invalid min_width attribute found in section %s, line %d: %d\n"
+ "Expected positive integer or string\n", context->name, context->line, num);
+ else if (num == LONG_MIN || num == LONG_MAX || (end && *end != '\0'))
+ num = 0;
+
+ if (strlen(value) == 0)
+ die("Empty min_width attribute found in section %s, line %d\n"
+ "Expected positive integer or non-empty string\n", context->name, context->line);
+
+ if (strcmp(value, "0") == 0)
+ die("Invalid min_width attribute found in section %s, line %d: \"%s\"\n"
+ "Expected positive integer or string\n", context->name, context->line, value);
+
+ struct min_width *parsed = scalloc(sizeof(struct min_width));
+ parsed->num = num;
+
+ /* num is preferred, but if it’s 0 (i.e. not valid), store and use
+ * the raw string value */
+ if (num == 0)
+ parsed->str = sstrdup(value);
+
+ struct min_width **cresult = result;
+ *cresult = parsed;
+
+ return 0;
+}
/*
* Validates a color in "#RRGGBB" format
@@ -219,35 +274,45 @@ int main(int argc, char *argv[]) {
cfg_opt_t run_watch_opts[] = {
CFG_STR("pidfile", NULL, CFGF_NONE),
CFG_STR("format", "%title: %status", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
CFG_CUSTOM_COLOR_OPTS,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t path_exists_opts[] = {
CFG_STR("path", NULL, CFGF_NONE),
CFG_STR("format", "%title: %status", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
CFG_CUSTOM_COLOR_OPTS,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t wireless_opts[] = {
CFG_STR("format_up", "W: (%quality at %essid, %bitrate) %ip", CFGF_NONE),
CFG_STR("format_down", "W: down", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
CFG_CUSTOM_COLOR_OPTS,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t ethernet_opts[] = {
CFG_STR("format_up", "E: %ip (%speed)", CFGF_NONE),
CFG_STR("format_down", "E: down", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
CFG_CUSTOM_COLOR_OPTS,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t ipv6_opts[] = {
CFG_STR("format_up", "%ip", CFGF_NONE),
CFG_STR("format_down", "no IPv6", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
CFG_CUSTOM_COLOR_OPTS,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
@@ -260,35 +325,47 @@ int main(int argc, char *argv[]) {
CFG_BOOL("last_full_capacity", false, CFGF_NONE),
CFG_BOOL("integer_battery_capacity", false, CFGF_NONE),
CFG_BOOL("hide_seconds", false, CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
CFG_CUSTOM_COLOR_OPTS,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t time_opts[] = {
CFG_STR("format", "%Y-%m-%d %H:%M:%S", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t tztime_opts[] = {
CFG_STR("format", "%Y-%m-%d %H:%M:%S %Z", CFGF_NONE),
CFG_STR("timezone", "", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t ddate_opts[] = {
CFG_STR("format", "%{%a, %b %d%}, %Y%N - %H", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t load_opts[] = {
CFG_STR("format", "%1min %5min %15min", CFGF_NONE),
CFG_FLOAT("max_threshold", 5, CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
CFG_CUSTOM_COLOR_OPTS,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t usage_opts[] = {
CFG_STR("format", "%usage", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
@@ -296,13 +373,17 @@ int main(int argc, char *argv[]) {
CFG_STR("format", "%degrees C", CFGF_NONE),
CFG_STR("path", NULL, CFGF_NONE),
CFG_INT("max_threshold", 75, CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
CFG_CUSTOM_COLOR_OPTS,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
cfg_opt_t disk_opts[] = {
CFG_STR("format", "%free", CFGF_NONE),
CFG_STR("prefix_type", "binary", CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
@@ -312,7 +393,9 @@ int main(int argc, char *argv[]) {
CFG_STR("device", "default", CFGF_NONE),
CFG_STR("mixer", "Master", CFGF_NONE),
CFG_INT("mixer_idx", 0, CFGF_NONE),
+ CFG_CUSTOM_ALIGN_OPT,
CFG_CUSTOM_COLOR_OPTS,
+ CFG_CUSTOM_MIN_WIDTH_OPT,
CFG_END()
};
diff --git a/include/i3status.h b/include/i3status.h
index 95da091..8c64586 100644
--- a/include/i3status.h
+++ b/include/i3status.h
@@ -88,6 +88,22 @@ enum { O_DZEN2, O_XMOBAR, O_I3BAR, O_TERM, O_NONE } output_format;
#define SEC_CLOSE_MAP \
do { \
if (output_format == O_I3BAR) { \
+ char *_align = cfg_getstr(sec, "align"); \
+ if (_align) { \
+ yajl_gen_string(json_gen, (const unsigned char *)"align", strlen("align")); \
+ yajl_gen_string(json_gen, (const unsigned char *)_align, strlen(_align)); \
+ } \
+ struct min_width *_width = cfg_getptr(sec, "min_width"); \
+ if (_width) { \
+ /* if the value can be parsed as a number, we use the numerical value */ \
+ if (_width->num > 0) { \
+ yajl_gen_string(json_gen, (const unsigned char *)"min_width", strlen("min_width")); \
+ yajl_gen_integer(json_gen, _width->num); \
+ } else { \
+ yajl_gen_string(json_gen, (const unsigned char *)"min_width", strlen("min_width")); \
+ yajl_gen_string(json_gen, (const unsigned char *)_width->str, strlen(_width->str)); \
+ } \
+ } \
const char *_sep = cfg_getstr(cfg_general, "separator"); \
if (strlen(_sep) == 0) {\
yajl_gen_string(json_gen, (const unsigned char *)"separator", strlen("separator")); \
@@ -132,6 +148,14 @@ enum { O_DZEN2, O_XMOBAR, O_I3BAR, O_TERM, O_NONE } output_format;
typedef enum { CS_DISCHARGING, CS_CHARGING, CS_FULL } charging_status_t;
+/*
+ * The "min_width" module option may either be defined as a string or a number.
+ */
+struct min_width {
+ long num;
+ const char *str;
+};
+
/* src/general.c */
char *skip_character(char *input, char character, int amount);
void die(const char *fmt, ...);
diff --git a/man/i3status.man b/man/i3status.man
index 7ba4422..656a8bf 100644
--- a/man/i3status.man
+++ b/man/i3status.man
@@ -404,6 +404,35 @@ volume master {
}
-------------------------------------------------------------
+== Universal module options
+
+When using the i3bar output format, there are a few additional options that
+can be used with all modules to customize their appearance:
+
+align::
+ The alignment policy to use when the minimum width (see below) is not
+ reached. Either +center+ (default), +right+ or +left+.
+min_width::
+ The minimum width (in pixels) the module should occupy. If the module takes
+ less space than the specified size, the block will be padded to the left
+ and/or the right side, according to the defined alignment policy. This is
+ useful when you want to prevent the whole status line from shifting when
+ values take more or less space between each iteration.
+ The option can also be a string. In this case, the width of the given text
+ determines the minimum width of the block. This is useful when you want to
+ set a sensible minimum width regardless of which font you are using, and at
+ what particular size. Please note that a number enclosed with quotes will
+ still be treated as a number.
+
+*Example configuration*:
+-------------------------------------------------------------
+disk "/" {
+ format = "%avail"
+ align = "left"
+ min_width = 100
+}
+-------------------------------------------------------------
+
== Using i3status with dzen2
After installing dzen2, you can directly use it with i3status. Just ensure that