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Diffstat (limited to 'users/wpcarro/emacs/.emacs.d/wpc/fonts.el')
| -rw-r--r-- | users/wpcarro/emacs/.emacs.d/wpc/fonts.el | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/fonts.el b/users/wpcarro/emacs/.emacs.d/wpc/fonts.el new file mode 100644 index 0000000000..196b882862 --- /dev/null +++ b/users/wpcarro/emacs/.emacs.d/wpc/fonts.el @@ -0,0 +1,167 @@ +;;; fonts.el --- Font preferences -*- lexical-binding: t -*- + +;; Author: William Carroll <wpcarro@gmail.com> +;; Version: 0.0.1 +;; Package-Requires: ((emacs "24.3")) + +;;; Commentary: +;; Control my font preferences with ELisp. + +;;; Code: + +;; TODO: `defcustom' font-size. +;; TODO: `defcustom' fonts. + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Dependencies +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +(require 'prelude) +(require 'cycle) +(require 'maybe) +(require 'cl-lib) + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Constants +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +;; TODO: Troubleshoot why "8" appears so large on my desktop. + +;; TODO: Consider having a different font size when I'm using my 4K monitor. + +(defconst fonts-size "10" + "My preferred default font-size.") + +(defconst fonts-size-step 10 + "The amount (%) by which to increase or decrease a font.") + +(defconst fonts-hacker-news-recommendations + '("APL385 Unicode" + "Go Mono" + "Sudo" + "Monoid" + "Input Mono Medium" ;; NOTE: Also "Input Mono Thin" is nice. + ) + "List of fonts optimized for programming I found in a HN article.") + +(defconst fonts-whitelist + (cycle-from-list + (list-concat + fonts-hacker-news-recommendations + '("JetBrainsMono" + "Mononoki Medium" + "Monospace" + "Operator Mono Light" + "Courier" + "Andale Mono" + "Source Code Pro" + "Terminus"))) + "This is a list of my preferred fonts.") + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Functions +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +;; TODO: fonts and fonts-whitelist make it difficult to name functions like +;; fonts-set as a generic Emacs function vs choosing a font from the whitelist. + +(cl-defun fonts-cycle (&key forward?) + "Cycle forwards when `FORWARD?' non-nil." + (let ((font (if forward? + (cycle-next fonts-whitelist) + (cycle-prev fonts-whitelist)))) + (message (s-concat "Active font: " font)) + (fonts-set font))) + +(defun fonts-next () + "Quickly cycle through preferred fonts." + (interactive) + (fonts-cycle :forward? t)) + +(defun fonts-prev () + "Quickly cycle through preferred fonts." + (interactive) + (fonts-cycle :forward? nil)) + +(defun fonts-set (font &optional size) + "Change the font to `FONT' with option integer, SIZE, in pixels." + (if (maybe-some? size) + (set-frame-font (string-format "%s %s" font size) nil t) + (set-frame-font font nil t))) + +(defun fonts-whitelist-set (font) + "Focuses the FONT in the `fonts-whitelist' cycle. +The size of the font is determined by `fonts-size'." + (prelude-assert (cycle-contains? font fonts-whitelist)) + (cycle-focus (lambda (x) (equal x font)) fonts-whitelist) + (fonts-set (fonts-current) fonts-size)) + +(defun fonts-ivy-select () + "Select a font from an ivy prompt." + (interactive) + (fonts-whitelist-set + (ivy-read "Font: " (cycle-to-list fonts-whitelist)))) + +(defun fonts-print-current () + "Message the currently enabled font." + (interactive) + (message + (string-format "[fonts] Current font: \"%s\"" + (fonts-current)))) + +(defun fonts-current () + "Return the currently enabled font." + (cycle-current fonts-whitelist)) + +(defun fonts-increase-size () + "Increase font size." + (interactive) + (->> (face-attribute 'default :height) + (+ fonts-size-step) + (set-face-attribute 'default (selected-frame) :height))) + +(defun fonts-decrease-size () + "Decrease font size." + (interactive) + (->> (face-attribute 'default :height) + (+ (- fonts-size-step)) + (set-face-attribute 'default (selected-frame) :height))) + +(defun fonts-reset-size () + "Restore font size to its default value." + (interactive) + (fonts-whitelist-set (fonts-current))) + +(defun fonts-enable-ligatures () + "Call this function to enable ligatures." + (interactive) + (let ((alist '((33 . ".\\(?:\\(?:==\\|!!\\)\\|[!=]\\)") + (35 . ".\\(?:###\\|##\\|_(\\|[#(?[_{]\\)") ;; + (36 . ".\\(?:>\\)") + (37 . ".\\(?:\\(?:%%\\)\\|%\\)") + (38 . ".\\(?:\\(?:&&\\)\\|&\\)") + (42 . ".\\(?:\\(?:\\*\\*/\\)\\|\\(?:\\*[*/]\\)\\|[*/>]\\)") ;; + (43 . ".\\(?:\\(?:\\+\\+\\)\\|[+>]\\)") + (45 . ".\\(?:\\(?:-[>-]\\|<<\\|>>\\)\\|[<>}~-]\\)") + (46 . ".\\(?:\\(?:\\.[.<]\\)\\|[.=-]\\)") ;; + (47 . ".\\(?:\\(?:\\*\\*\\|//\\|==\\)\\|[*/=>]\\)") + (48 . ".\\(?:x[a-zA-Z]\\)") + (58 . ".\\(?:::\\|[:=]\\)") + (59 . ".\\(?:;;\\|;\\)") + (60 . ".\\(?:\\(?:!--\\)\\|\\(?:~~\\|->\\|\\$>\\|\\*>\\|\\+>\\|--\\|<[<=-]\\|=[<=>]\\||>\\)\\|[*$+~/<=>|-]\\)") + (61 . ".\\(?:\\(?:/=\\|:=\\|<<\\|=[=>]\\|>>\\)\\|[<=>~]\\)") + (62 . ".\\(?:\\(?:=>\\|>[=>-]\\)\\|[=>-]\\)") + (63 . ".\\(?:\\(\\?\\?\\)\\|[:=?]\\)") + (91 . ".\\(?:]\\)") + (92 . ".\\(?:\\(?:\\\\\\\\\\)\\|\\\\\\)") + (94 . ".\\(?:=\\)") + (119 . ".\\(?:ww\\)") + (123 . ".\\(?:-\\)") + (124 . ".\\(?:\\(?:|[=|]\\)\\|[=>|]\\)") + (126 . ".\\(?:~>\\|~~\\|[>=@~-]\\)")))) + (dolist (char-regexp alist) + (set-char-table-range composition-function-table (car char-regexp) + `([,(cdr char-regexp) 0 font-shape-gstring]))))) + +(provide 'fonts) +;;; fonts.el ends here |