summaryrefslogtreecommitdiff
path: root/brightnessarc-widget/brightnessarc.lua
blob: 7633218f6c808b8537ebd7d4d7a6828161b37f2e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
-------------------------------------------------
-- Brightness Widget for Awesome Window Manager
-- Shows the brightness level of the laptop display
-- More details could be found here:
-- https://github.com/streetturtle/awesome-wm-widgets/tree/master/brightnessarc-widget

-- @author Pavel Makhov
-- @copyright 2019 Pavel Makhov
-------------------------------------------------

local wibox = require("wibox")
local watch = require("awful.widget.watch")
local spawn = require("awful.spawn")

local PATH_TO_ICON = "/usr/share/icons/Arc/status/symbolic/display-brightness-symbolic.svg"
local GET_BRIGHTNESS_CMD = "light -G" -- "xbacklight -get"
local INC_BRIGHTNESS_CMD = "light -A 5" -- "xbacklight -inc 5"
local DEC_BRIGHTNESS_CMD = "light -U 5" -- "xbacklight -dec 5"

local icon = {
    id = "icon",
    image = PATH_TO_ICON,
    resize = true,
    widget = wibox.widget.imagebox,
}

local brightnessarc = wibox.widget {
    icon,
    max_value = 1,
    thickness = 2,
    start_angle = 4.71238898, -- 2pi*3/4
    forced_height = 18,
    forced_width = 18,
    bg = "#ffffff11",
    paddings = 2,
    widget = wibox.container.arcchart
}

local update_widget = function(widget, stdout)
    local brightness_level = string.match(stdout, "(%d?%d?%d?)")
    brightness_level = tonumber(string.format("% 3d", brightness_level))

    widget.value = brightness_level / 100;
end,

brightnessarc:connect_signal("button::press", function(_, _, _, button)
    if (button == 4) then spawn(INC_BRIGHTNESS_CMD, false)
    elseif (button == 5) then spawn(DEC_BRIGHTNESS_CMD, false)
    end
end)

watch(GET_BRIGHTNESS_CMD, 1, update_widget, brightnessarc)

return brightnessarc