2019-10-09 13:13:56 +02:00
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;;; screen-brightness.el --- Control laptop screen brightness -*- lexical-binding: t -*-
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;; Author: William Carroll <wpcarro@gmail.com>
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;;; Commentary:
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;; Mainly just Elisp wrappers around `xbacklight`.
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;;; Code:
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;; TODO: Define some isomorphisms. E.g. int->string, string->int.
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2019-12-23 18:31:42 +01:00
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Dependencies
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(require 'prelude)
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2019-10-09 13:13:56 +02:00
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Constants
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defconst screen-brightness/step-size 15
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"The size of the increment or decrement step for the screen's brightness.")
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Library
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defun screen-brightness/increase ()
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"Increase the screen brightness."
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(interactive)
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2020-08-31 18:05:31 +02:00
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(prelude-start-process
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2019-12-23 18:31:42 +01:00
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:name "screen-brightness/increase"
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:command (string/format "xbacklight -inc %s" screen-brightness/step-size))
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2019-10-09 13:13:56 +02:00
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(message "[screen-brightness.el] Increased screen brightness."))
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(defun screen-brightness/decrease ()
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"Decrease the screen brightness."
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(interactive)
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2020-08-31 18:05:31 +02:00
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(prelude-start-process
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2019-12-23 18:31:42 +01:00
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:name "screen-brightness/decrease"
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:command (string/format "xbacklight -dec %s" screen-brightness/step-size))
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2019-10-09 13:13:56 +02:00
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(message "[screen-brightness.el] Decreased screen brightness."))
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(provide 'screen-brightness)
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;;; screen-brightness.el ends here
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