mirror of
https://github.com/larstvei/Focus.git
synced 2024-11-26 03:28:32 +00:00
35 lines
1.4 KiB
EmacsLisp
35 lines
1.4 KiB
EmacsLisp
|
(defvar-local focus-pre-overlay nil)
|
||
|
|
(defvar-local focus-post-overlay nil)
|
||
|
|
|
||
|
|
(defun focus-hexstr-to-int (str)
|
||
|
|
(read (concat "#x" (substring str 1))))
|
||
|
|
|
||
|
|
(defun focus-average-colors (hstr1 hstr2 &rest hstrs)
|
||
|
|
(let* ((strs (cons hstr1 (cons hstr2 hstrs)))
|
||
|
|
(avg (/ (apply '+ (mapcar 'focus-hexstr-to-int strs)) 2)))
|
||
|
|
(format "#%X" avg)))
|
||
|
|
|
||
|
|
(defun focus-move-focus ()
|
||
|
|
(save-excursion
|
||
|
|
(let* ((pre (or (re-search-backward "^\n" nil t) 1))
|
||
|
|
(post (1- (or (re-search-forward "^\n" nil t 2)
|
||
|
|
(1+ (point-max))))))
|
||
|
|
(move-overlay focus-pre-overlay (point-min) pre)
|
||
|
|
(move-overlay focus-post-overlay post (point-max)))))
|
||
|
|
|
||
|
|
;;;###autoload
|
||
|
|
(define-minor-mode focus-mode
|
||
|
|
"Dim the font color text in surrounding paragraphs."
|
||
|
|
:init-value nil
|
||
|
|
(if (not focus-mode)
|
||
|
|
(progn (mapc 'delete-overlay (list focus-pre-overlay focus-post-overlay))
|
||
|
|
(remove-hook 'post-command-hook 'focus-move-focus t))
|
||
|
|
(setq focus-pre-overlay (make-overlay (point-min) (point-min))
|
||
|
|
focus-post-overlay (make-overlay (point-max) (point-max)))
|
||
|
|
(let ((color (focus-average-colors
|
||
|
|
(face-attribute 'default :foreground)
|
||
|
|
(face-attribute 'default :background))))
|
||
|
|
(mapc (lambda (o) (overlay-put o 'face (cons 'foreground-color color)))
|
||
|
|
(list focus-pre-overlay focus-post-overlay)))
|
||
|
|
(add-hook 'post-command-hook 'focus-move-focus nil t)))
|