5785a5d126
If you refer to the previous commit where I change shell-command usages to start-process function calls, you'll see the rationale for why I prefer start-process. This commit introduces a more ergonomic API for start-process that fits most of my current use-cases of it. This cleans up the code. I have introduced a bug in the way that I'm tokenizing the COMMAND value. I've tracked that with a TODO. For now it only affects the `xmodmap -e '<command-string>'` calls, which isn't too disruptive.
54 lines
1.7 KiB
EmacsLisp
54 lines
1.7 KiB
EmacsLisp
;;; display.el --- Working with single or multiple displays -*- lexical-binding: t -*-
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;; Author: William Carroll <wpcarro@gmail.com>
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;;; Commentary:
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;; Mostly wrappers around xrandr.
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;;
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;; TODO: Look into autorandr to see if it could be useful.
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;;
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;; Troubleshooting:
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;; The following commands help me when I (infrequently) interact with xrandr.
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;; - xrandr --listmonitors
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;; - xrandr --query
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;;; Code:
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Dependencies
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(require 'prelude)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Constants
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; TODO: Consider if this logic should be conditioned by `device/work-laptop?'.
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(defconst display/primary "eDP-1"
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"The xrandr identifier for my primary screen (on work laptop).")
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(defconst display/4k "HDMI-1"
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"The xrandr identifer for my 4K monitor.")
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Library
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defun display/enable-4k ()
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"Attempt to connect to my 4K monitor."
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(interactive)
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(prelude/start-process
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:name "display"
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:command (string/format "xrandr --output %s --dpi 144 --auto --right-of %s"
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display/4k
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display/primary)))
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(defun display/disable-4k ()
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"Disconnect from the 4K monitor."
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(interactive)
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(prelude/start-process
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:name "display/disable-4k"
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:command (string/format "xrandr --output %s --off" display/4k)))
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(provide 'display)
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;;; display.el ends here
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