578ed1ba98
Moving all of my Emacs-related files into their own directory at the root of this repository.
96 lines
3.1 KiB
EmacsLisp
96 lines
3.1 KiB
EmacsLisp
;;; colorscheme.el --- Syntax highlight and friends -*- lexical-binding: t -*-
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;; Author: William Carroll <wpcarro@gmail.com>
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;;; Commentary:
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;;
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;; TODO: Clarify this.
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;; Since I have my own definition of "theme", which couples wallpaper, font,
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;; with Emacs's traditional notion of the word "theme", I'm choosing to use
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;; "colorscheme" to refer to *just* the notion of syntax highlight etc.
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;;; Code:
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Dependencies
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(require 'cycle)
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(require 'general)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Constants
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defcustom colorscheme/install-kbds? t
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"If non-nil, enable the keybindings.")
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Library
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defcustom colorscheme/whitelist
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(cycle/from-list
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(->> (custom-available-themes)
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(list/map #'symbol-name)
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(list/filter (>> (s-starts-with? "doom-")))
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(list/map #'intern)))
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"The whitelist of colorschemes through which to cycle.")
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(defun colorscheme/current ()
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"Return the currently enabled colorscheme."
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(cycle/current colorscheme/whitelist))
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(defun colorscheme/disable-all ()
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"Disable all currently enabled colorschemes."
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(interactive)
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(->> custom-enabled-themes
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(list/map #'disable-theme)))
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(defun colorscheme/set (theme)
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"Call `load-theme' with `THEME', ensuring that the line numbers are bright.
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There is no hook that I'm aware of to handle this more elegantly."
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(load-theme theme t)
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(prelude/set-line-number-color "#da5468"))
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(defun colorscheme/whitelist-set (colorscheme)
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"Focus the COLORSCHEME in the `colorscheme/whitelist' cycle."
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(cycle/focus (lambda (x) (equal x colorscheme)) colorscheme/whitelist)
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(colorscheme/set (colorscheme/current)))
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(defun colorscheme/ivy-select ()
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"Load a colorscheme using ivy."
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(interactive)
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(let ((theme (ivy-read "Theme: " (cycle/to-list colorscheme/whitelist))))
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(colorscheme/disable-all)
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(colorscheme/set (intern theme))))
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(cl-defun colorscheme/cycle (&key forward?)
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"Cycle next if `FORWARD?' is non-nil.
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Cycle prev otherwise."
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(disable-theme (cycle/current colorscheme/whitelist))
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(let ((theme (if forward?
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(cycle/next colorscheme/whitelist)
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(cycle/prev colorscheme/whitelist))))
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(colorscheme/set theme)
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(message (s-concat "Active theme: " (symbol/to-string theme)))))
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(defun colorscheme/next ()
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"Disable the currently active theme and load the next theme."
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(interactive)
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(colorscheme/cycle :forward? t))
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(defun colorscheme/prev ()
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"Disable the currently active theme and load the previous theme."
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(interactive)
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(colorscheme/cycle :forward? nil))
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;; Keybindings
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(when colorscheme/install-kbds?
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(general-define-key
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:prefix "<SPC>"
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:states '(normal)
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"Ft" #'colorscheme/next
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"Pt" #'colorscheme/prev))
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(provide 'colorscheme)
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;;; colorscheme.el ends here
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