019f8fd211
git-subtree-dir: users/wpcarro git-subtree-mainline:464bbcb15cgit-subtree-split:24f5a642afChange-Id: I6105b3762b79126b3488359c95978cadb3efa789
138 lines
5.1 KiB
EmacsLisp
138 lines
5.1 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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;; Version: 0.0.1
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;; URL: https://git.wpcarro.dev/wpcarro/briefcase
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;; Package-Requires: ((emacs "24"))
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;;; Commentary:
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;; Mostly wrappers around xrandr.
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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 'dash)
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(require 's)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Library
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(cl-defmacro display-register (name &key
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output
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primary
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coords
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size
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rate
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dpi
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rotate)
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"Macro to define constants and two functions for {en,dis}abling a display.
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NAME - the human-readable identifier for the display
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OUTPUT - the xrandr identifier for the display
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PRIMARY - if true, send --primary flag to xrandr
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COORDS - X and Y offsets
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SIZE - the pixel resolution of the display (width height)
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RATE - the refresh rate
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DPI - the pixel density in dots per square inch
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rotate - one of {normal,left,right,inverted}
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See the man-page for xrandr for more details."
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`(progn
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(defconst ,(intern (format "display-%s" name)) ,output
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,(format "The xrandr identifier for %s" name))
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(defconst ,(intern (format "display-%s-args" name))
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,(replace-regexp-in-string
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"\s+" " "
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(s-format "--output ${output} ${primary-flag} --auto \
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--size ${size-x}x${size-y} --rate ${rate} --dpi ${dpi} \
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--rotate ${rotate} ${pos-flag}"
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#'aget
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`(("output" . ,output)
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("primary-flag" . ,(if primary "--primary" "--noprimary"))
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("pos-flag" . ,(if coords
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(format "--pos %dx%d"
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(car coords)
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(cadr coords))
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""))
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("size-x" . ,(car size))
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("size-y" . ,(cadr size))
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("rate" . ,rate)
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("dpi" . ,dpi)
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("rotate" . ,rotate))))
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,(format "The arguments we pass to xrandr for display-%s." name))
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(defconst ,(intern (format "display-%s-command" name))
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(format "xrandr %s" ,(intern (format "display-%s-args" name)))
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,(format "The command we run to configure %s" name))
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(defun ,(intern (format "display-enable-%s" name)) ()
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,(format "Attempt to enable my %s monitor" name)
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(interactive)
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(prelude-start-process
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:name ,(format "display-enable-%s" name)
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:command ,(intern (format "display-%s-command" name))))
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(defun ,(intern (format "display-disable-%s" name)) ()
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,(format "Attempt to disable my %s monitor." name)
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(interactive)
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(prelude-start-process
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:name ,(format "display-disable-%s" name)
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:command ,(format
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"xrandr --output %s --off"
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output)))))
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(defmacro display-arrangement (name &key displays)
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"Create a function, display-arrange-<NAME>, to enable all your DISPLAYS."
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`(defun ,(intern (format "display-arrange-%s" name)) ()
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(interactive)
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(prelude-start-process
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:name ,(format "display-configure-%s" name)
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:command ,(format "xrandr %s"
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(->> displays
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(-map (lambda (x)
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(eval (intern (format "display-%s-args" x)))))
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(s-join " "))))))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Configuration
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(display-register laptop
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:output "eDP1"
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:primary nil
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:coords (2560 1440)
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:size (1920 1080)
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:rate 30.0
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:dpi 144
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:rotate normal)
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(display-register 4k-horizontal
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:output "DP2"
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:primary t
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:coords (0 0)
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:size (2560 1440)
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:rate 30.0
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:dpi 144
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:rotate normal)
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(display-register 4k-vertical
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:output "HDMI1"
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:primary nil
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:coords (-1440 -560)
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:size (2560 1440)
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:rate 30.0
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:dpi 144
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:rotate left)
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(display-arrangement primary
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:displays (laptop 4k-horizontal 4k-vertical))
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(provide 'display)
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;;; display.el ends here
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