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feat(org): scale LaTeX previews with `doom-big-font-mode' #8668

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feat(org): scale LaTeX previews with `doom-big-font-mode' #8668

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36 changes: 36 additions & 0 deletions modules/lang/org/config.el
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,11 @@ Is relative to `org-directory', unless it is absolute. Is used in Doom's default
(defvar +org-startup-with-animated-gifs nil
"If non-nil, and the cursor is over a gif inline-image preview, animate it!")

(defvar +org--latex-preview-default-scale nil
"The default `org-format-latex-options' :scale value.
Captured when org appearance is initialized, used by
`+org-big-font-toggle-latex-previews-h' to restore the original scale.")


;;
;;; `org-load' hooks
Expand Down Expand Up @@ -102,6 +107,34 @@ Is relative to `org-directory', unless it is absolute. Is used in Doom's default
org-agenda-inhibit-startup t))


(defun +org-big-font-toggle-latex-previews-h ()
"Scale org LaTeX preview fragments when `doom-big-font-mode' is toggled."
(let ((scale (if doom-big-font-mode
(let* ((base-size (or (ignore-errors
(font-get (doom-normalize-font
(or doom-font (face-font 'default)))
:size))
14.0))
(increment (* doom-big-font-increment doom-font-increment)))
(* +org--latex-preview-default-scale
(/ (+ base-size increment) base-size)))
+org--latex-preview-default-scale)))
(plist-put org-format-latex-options :scale scale)
(dolist (buf (doom-buffers-in-mode 'org-mode))
(if (get-buffer-window buf)
(with-current-buffer buf
(org-clear-latex-preview)
(org--latex-preview-region (point-min) (point-max)))
(with-current-buffer buf
(add-hook 'doom-switch-buffer-hook #'+org--regenerate-latex-previews-h nil 'local))))))

(defun +org--regenerate-latex-previews-h ()
"Regenerate LaTeX previews in current buffer and remove self from hook."
(remove-hook 'doom-switch-buffer-hook #'+org--regenerate-latex-previews-h 'local)
(org-clear-latex-preview)
(org--latex-preview-region (point-min) (point-max)))


(defun +org-init-appearance-h ()
"Configures the UI for `org-mode'."
(setq org-indirect-buffer-display 'current-window
Expand Down Expand Up @@ -139,6 +172,9 @@ Is relative to `org-directory', unless it is absolute. Is used in Doom's default
org-outline-path-complete-in-steps nil)

(plist-put org-format-latex-options :scale 1.5) ; larger previews
(setq +org--latex-preview-default-scale
(plist-get org-format-latex-options :scale))
(add-hook 'doom-big-font-mode-hook #'+org-big-font-toggle-latex-previews-h)

;; HACK Face specs fed directly to `org-todo-keyword-faces' don't respect
;; underlying faces like the `org-todo' face does, so we define our own
Expand Down