Better widgets

awesome-wm-widgets/brightness-widget/README.md

@@ -0,0 +1,56 @@
+# Brightness widget
+
+![Brightness widget](./br-wid-1.png)
+
+This widget represents current brightness level.
+
+## Installation
+
+Firstly you need to get the current brightness level. There are two options:
+
+ - using `xbacklight` command (depending on your video card (I guess) it may or may not work)
+ 
+    To check if it works install xbackligth and check if it works:
+ 
+    ```bash
+    sudo apt-get install xbacklight
+    xbacklight -get
+    ```
+
+    If there is no output it means that it doesn't work, but there is a second option:
+
+ - using `light` command
+ 
+    Install it from this git repo: [github.com/haikarainen/light](https://github.com/haikarainen/light) and check if it works but running
+
+    ```bash
+    git clone https://github.com/haikarainen/light.git && \
+    cd ./light && \
+    sudo make && sudo make install \
+    light -G
+    49.18
+    ```
+Depending on the chosen option change `GET_BRIGHTNESS_CMD` variable in **brightness.lua**.
+
+Then in **rc.lua** add the import on top of the file and then add widget to the wibox:
+
+```lua
+require("awesome-wm-widgets.brightness-widget.brightness")
+...
+-- Add widgets to the wibox
+s.mywibox:setup {
+...
+{ -- Right widgets
+...
+brightness_widget
+```
+
+## Controls
+
+In order to change brightness by shortcuts you can add them to the `globalkeys` table in the **rc.lua**:
+
+```lua
+awful.key({ modkey         }, ";", function () awful.spawn("light -A 5") end, {description = "increase brightness", group = "custom"}),
+awful.key({ modkey, "Shift"}, ";", function () awful.spawn("light -U 5") end, {description = "decrease brightness", group = "custom"}),
+```
+On laptop you can use `XF86MonBrightnessUp` and `XF86MonBrightnessDown` keys.

awesome-wm-widgets/brightness-widget/brightness.lua

@@ -0,0 +1,56 @@
+-------------------------------------------------
+-- 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/brightness-widget
+
+-- @author Pavel Makhov
+-- @copyright 2017 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 1" -- "xbacklight -inc 5"
+local DEC_BRIGHTNESS_CMD = "light -U 1" -- "xbacklight -dec 5"
+
+local brightness_text = wibox.widget.textbox()
+brightness_text:set_font('Play 9')
+
+local brightness_icon = wibox.widget {
+    {
+    	image = PATH_TO_ICON,
+    	resize = false,
+        widget = wibox.widget.imagebox,
+    },
+    top = 3,
+    widget = wibox.container.margin
+}
+
+local brightness_widget = wibox.widget {
+    brightness_icon,
+    brightness_text,
+    layout = wibox.layout.fixed.horizontal,
+}
+
+local update_widget = function(widget, stdout, stderr, exitreason, exitcode)
+    local brightness_level = tonumber(string.format("%.0f", stdout))
+    widget:set_text(" " .. brightness_level .. "%")
+end,
+
+brightness_widget: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
+
+    spawn.easy_async(GET_BRIGHTNESS_CMD, function(stdout, stderr, exitreason, exitcode)
+        update_widget(brightness_widget, stdout, stderr, exitreason, exitcode)
+    end)
+end)
+
+watch(GET_BRIGHTNESS_CMD, 1, update_widget, brightness_text)
+
+return brightness_widget