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Module: Clock

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Ali edited this page Jul 7, 2024 · 42 revisions

The clock module displays the current date and time.

Note: There are two clock implementations:

  1. clock: Fully consistent with what is written below. This is enabled if either one of the following build time conditions is met:
  1. C++20 with __cpp_concepts >= 201907 (gcc >=13)
  2. date.h is installed
  1. simpleclock: Provides only date time functionality. That's it. Conditions for using: False the first point.

Config

Addressed by clock

option typeof default description
interval integer 60 The interval in which the information gets polled.
format string {:%H:%M} The format, how the date and time should be displayed. See format options here.
timezone string The timezone to display the time in, e.g. America/New_York. See Wikipedia's unofficial list of timezones.
timezones list of strings A list of timezones (as in timezone) to use for time display, changed using the scroll wheel. Do not specify timezone option when timezones is specified.
locale string A locale to be used to display the time. Intended to render times in custom timezones with the proper language and format.
max-length integer The maximum length in character the module should display.
rotate integer Positive value to rotate the text label.
on-click string Command to execute when clicked on the module.
on-click-middle string Command to execute when you middle clicked on the module using mousewheel.
on-click-right string Command to execute when you right clicked on the module.
on-scroll-up string Command to execute when scrolling up on the module.
on-scroll-down string Command to execute when scrolling down on the module.
smooth-scrolling-threshold double Threshold to be used when scrolling.
tooltip bool true Option to enable tooltip on hover
tooltip-format string same as format Tooltip on hover. Can also show a list of clocks in other timezones. See below the example using the property tz_list.

Addressed by clock: calendar

option typeof default description
mode string month Calendar view mode. Possible values: year|month
mode-mon-col integer 3 Relevant for mode=year. Count of months per row
weeks-pos string The position where week numbers should be displayed. Disabled when is empty. Possible values: left|right
on-scroll integer 1 Value to scroll months/years forward/backward. Can be negative. Is configured under on-scroll option

Addressed by clock: calendar: format

option typeof default description
months string Format is applied to months header(January, February,...etc.)
days string Format is applied to days
weeks string {:%U} Format is applied to week numbers. When weekday format is not provided then is used default format: '{:%W}' when week starts with Monday, '{:%U}' otherwise
weekdays string Format is applied to weeks header(Su,Mo,...etc.)
today string <b><u>{}</u></b> Format is applied to Today

Actions

string action
mode Switch calendar mode between year/month
tz_up Switch to the next provided time zone
tz_down Switch to the previous provided time zone
shift_up Switch to the next calendar month/year
shift_down Switch to the previous calendar month/year
shift_reset Switch to current calendar month/year

Example:

  1. General
"clock": {
    "interval": 60,
    "format": "{:%H:%M}",
    "max-length": 25
}
  1. Calendar
    "clock": {
        "format": "{:%H:%M}  ",
        "format-alt": "{:%A, %B %d, %Y (%R)}  ",
        "tooltip-format": "<tt><small>{calendar}</small></tt>",
        "calendar": {
                    "mode"          : "year",
                    "mode-mon-col"  : 3,
                    "weeks-pos"     : "right",
                    "on-scroll"     : 1,
                    "format": {
                              "months":     "<span color='#ffead3'><b>{}</b></span>",
                              "days":       "<span color='#ecc6d9'><b>{}</b></span>",
                              "weeks":      "<span color='#99ffdd'><b>W{}</b></span>",
                              "weekdays":   "<span color='#ffcc66'><b>{}</b></span>",
                              "today":      "<span color='#ff6699'><b><u>{}</u></b></span>"
                              }
                    },
        "actions":  {
                    "on-click-right": "mode",
                    "on-click-forward": "tz_up",
                    "on-click-backward": "tz_down",
                    "on-scroll-up": "shift_up",
                    "on-scroll-down": "shift_down"
                    }
    },

calendar

  1. Full date on hover
"clock": {
    "interval": 60,
    "tooltip": true,
    "format": "{:%H.%M}",
    "tooltip-format": "{:%Y-%m-%d}",
}
  1. Show in the clock tooltip a list of clocks from other timezones
"clock": {
    "format": "{:%H:%M:%S (%Z)}",
    "tooltip-format": "{tz_list}",
    "timezones": [
        "Etc/UTC",
        "America/New_York",
        "America/Montevideo",
        "America/Los_Angeles",
        "Asia/Tokyo"
    ]
}

Style

  • #clock

Troubleshooting

If clock module is disabled at startup with locale::facet::_S_create_c_locale name not valid error message try one of the followings:

  • check if LC_TIME is set properly (glibc)
  • set locale to C in the config file (musl)

If using clock instead of simpleclock, the locale will default to C regardless of the locale settings. To override this behavior you have to perpend L to the formatting string. For example, {:%a %m %d} becomes {:L%a %m %d}.

The locale option must be set for {calendar} to use the correct start-of-week, regardless of system locale.

Calendar in Chinese. Alignment

In order to have aligned Chinese calendar there are some useful recommendations:

  1. Use "WenQuanYi Zen Hei Mono" which is provided in most Linux distributions
  2. Try different font sizes and find best for you. size = 9pt should be fine
  3. In case when "WenQuanYi Zen Hei Mono" font is used disable monospace font pango tag

Example of working config

"clock": {
        "format": "{:%H:%M}  ",
        "format-alt": "{:L%A, %B %d, %Y (%R)}  ",
        "tooltip-format": "\n<span size='9pt' font='WenQuanYi Zen Hei Mono'>{calendar}</span>",
        "calendar": {
                    "mode"          : "year",
                    "mode-mon-col"  : 3,
                    "weeks-pos"     : "right",
                    "on-scroll"     : 1,
                    "format": {
                              "months":     "<span color='#ffead3'><b>{}</b></span>",
                              "days":       "<span color='#ecc6d9'><b>{}</b></span>",
                              "weeks":      "<span color='#99ffdd'><b>W{}</b></span>",
                              "weekdays":   "<span color='#ffcc66'><b>{}</b></span>",
                              "today":      "<span color='#ff6699'><b><u>{}</u></b></span>"
                              }
                    },
        "actions":  {
                    "on-click-right": "mode",
                    "on-click-forward": "tz_up",
                    "on-click-backward": "tz_down",
                    "on-scroll-up": "shift_up",
                    "on-scroll-down": "shift_down"
                    }
    },

calendar-chinese

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