132 lines
4.6 KiB
EmacsLisp
132 lines
4.6 KiB
EmacsLisp
;;; core/autoload/fonts.el -*- lexical-binding: t; -*-
|
|
|
|
;;;###autoload
|
|
(defvar doom-font-increment 2
|
|
"How many steps to increase the font size each time `doom/increase-font-size'
|
|
or `doom/decrease-font-size' are invoked.")
|
|
|
|
;;;###autoload
|
|
(defvar doom-big-font nil
|
|
"The font to use for `doom-big-font-mode'. If nil, `doom-font' will be used,
|
|
scaled up by `doom-big-font-increment'. See `doom-font' for details on
|
|
acceptable values for this variable.")
|
|
|
|
;;;###autoload
|
|
(defvar doom-big-font-increment 4
|
|
"How many steps to increase the font size (with `doom-font' as the base) when
|
|
`doom-big-font-mode' is enabled and `doom-big-font' is nil.")
|
|
|
|
|
|
;;
|
|
;;; Library
|
|
|
|
(defun doom--font-name (fontname)
|
|
(when (query-fontset fontname)
|
|
(when-let (ascii (assq 'ascii (aref (fontset-info fontname) 2)))
|
|
(setq fontname (nth 2 ascii))))
|
|
(or (x-decompose-font-name fontname)
|
|
(error "Cannot decompose font name")))
|
|
|
|
(defvar doom--font-scale nil)
|
|
;;;###autoload
|
|
(defun doom-adjust-font-size (increment)
|
|
"Increase size of font in FRAME by INCREMENT.
|
|
FRAME parameter defaults to current frame."
|
|
(if (null increment)
|
|
(progn
|
|
(set-frame-font doom-font 'keep-size t)
|
|
(setf (alist-get 'font default-frame-alist)
|
|
(cond ((stringp doom-font) doom-font)
|
|
((fontp doom-font) (font-xlfd-name doom-font))
|
|
((signal 'wrong-type-argument (list '(fontp stringp)
|
|
doom-font)))))
|
|
t)
|
|
(let* ((font (frame-parameter nil 'font))
|
|
(font (doom--font-name font))
|
|
(increment (* increment doom-font-increment))
|
|
(zoom-factor (or doom--font-scale 0)))
|
|
(let ((new-size (+ (string-to-number (aref font xlfd-regexp-pixelsize-subnum))
|
|
increment)))
|
|
(unless (> new-size 0)
|
|
(error "Font is too small at %d" new-size))
|
|
(aset font xlfd-regexp-pixelsize-subnum (number-to-string new-size)))
|
|
;; Set point size & width to "*", so frame width will adjust to new font size
|
|
(aset font xlfd-regexp-pointsize-subnum "*")
|
|
(aset font xlfd-regexp-avgwidth-subnum "*")
|
|
(setq font (x-compose-font-name font))
|
|
(unless (x-list-fonts font)
|
|
(error "Cannot change font size"))
|
|
(set-frame-font font 'keep-size t)
|
|
(setf (alist-get 'font default-frame-alist) font)
|
|
(setq doom--font-scale (+ zoom-factor increment))
|
|
;; Unlike `set-frame-font', `set-frame-parameter' won't trigger this
|
|
(run-hooks 'after-setting-font-hook))))
|
|
|
|
|
|
;;
|
|
;;; Commands
|
|
|
|
;;;###autoload
|
|
(defun doom/reload-font ()
|
|
"Reload your fonts, if they're set.
|
|
See `doom-init-fonts-h'."
|
|
(interactive)
|
|
(when doom-font
|
|
(set-frame-font doom-font t))
|
|
(doom-init-fonts-h)
|
|
(mapc #'doom-init-extra-fonts-h (frame-list)))
|
|
|
|
;;;###autoload
|
|
(defun doom/increase-font-size (count)
|
|
"Enlargens the font size across the current and child frames."
|
|
(interactive "p")
|
|
(doom-adjust-font-size count))
|
|
|
|
;;;###autoload
|
|
(defun doom/decrease-font-size (count)
|
|
"Shrinks the font size across the current and child frames."
|
|
(interactive "p")
|
|
(doom-adjust-font-size (- count)))
|
|
|
|
;;;###autoload
|
|
(defun doom/reset-font-size ()
|
|
"Reset font size and `text-scale'.
|
|
|
|
Assuming it has been adjusted via `doom/increase-font-size' and
|
|
`doom/decrease-font-size', or `text-scale-*' commands."
|
|
(interactive)
|
|
(let (success)
|
|
(when (and (boundp 'text-scale-mode-amount)
|
|
(/= text-scale-mode-amount 0))
|
|
(text-scale-set 0)
|
|
(setq success t))
|
|
(when (doom-adjust-font-size nil)
|
|
(setq success t))
|
|
(unless success
|
|
(user-error "The font hasn't been resized"))))
|
|
|
|
;;;###autoload
|
|
(define-minor-mode doom-big-font-mode
|
|
"A global mode that resizes the font, for streams, screen-sharing and
|
|
presentations.
|
|
|
|
This uses `doom/increase-font-size' under the hood, and enlargens the font by
|
|
`doom-big-font-increment'."
|
|
:init-value nil
|
|
:lighter " BIG"
|
|
:global t
|
|
(unless doom-font
|
|
(user-error "`doom-font' must be set to a valid font"))
|
|
(if doom-big-font
|
|
(let ((font (if doom-big-font-mode doom-big-font doom-font)))
|
|
(set-frame-font font 'keep-size t)
|
|
(setf (alist-get 'font default-frame-alist)
|
|
(cond ((stringp doom-font) font)
|
|
((fontp font) (font-xlfd-name font))
|
|
((signal 'wrong-type-argument (list '(fontp stringp)
|
|
font))))))
|
|
(doom-adjust-font-size
|
|
(and doom-big-font-mode
|
|
(integerp doom-big-font-increment)
|
|
(/= doom-big-font-increment 0)
|
|
doom-big-font-increment))))
|