ff8277625f
This was a doozey because I use it everywhere. Is there a better way to globally rename things? Aye aye aye... computers, man!
92 lines
3.3 KiB
EmacsLisp
92 lines
3.3 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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(require 'cycle)
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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/laptop-monitor "eDP1"
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"The xrandr identifier for my primary screen (on work laptop).")
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;; TODO: Why is HDMI-1, eDP-1 sometimes and HDMI1, eDP1 other times.
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(defconst display/4k-monitor "HDMI1"
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"The xrandr identifer for my 4K monitor.")
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(defconst display/display-states (cycle/from-list '((t . nil) (nil . t)))
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"A list of cons cells modelling enabled and disabled states for my displays.
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The car models the enabled state of my laptop display; the cdr models the
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enabled state of my external monitor.")
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Library
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; TODO: Debug why something this scales to 4k appropriately and other times it
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;; doesn't.
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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/enable-4k"
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:command (string/format
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"xrandr --output %s --above %s --primary --auto --size 3840x2160 --rate 30.00 --dpi 144"
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display/4k-monitor
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display/laptop-monitor)))
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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"
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display/4k-monitor)))
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(defun display/enable-laptop ()
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"Turn the laptop monitor off.
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Sometimes this is useful when I'm sharing my screen in a Google Hangout and I
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only want to present one of my monitors."
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(interactive)
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(prelude-start-process
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:name "display/disable-laptop"
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:command (string/format "xrandr --output %s --auto"
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display/laptop-monitor)))
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(defun display/disable-laptop ()
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"Turn the laptop monitor off.
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Sometimes this is useful when I'm sharing my screen in a Google Hangout and I
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only want to present one of my monitors."
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(interactive)
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(prelude-start-process
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:name "display/disable-laptop"
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:command (string/format "xrandr --output %s --off"
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display/laptop-monitor)))
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(defun display/cycle-display-states ()
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"Cycle through `display/display-states' enabling and disabling displays."
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(interactive)
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(let ((state (cycle/next display/display-states)))
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(if (car state) (display/enable-laptop) (display/disable-laptop))
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(if (cdr state) (display/enable-4k) (display/disable-4k))))
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(provide 'display)
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;;; display.el ends here
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