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Clean up and refactor nlinum defuns

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This commit is contained in:
Henrik Lissner 2016-04-30 23:13:39 -04:00
parent e796a8478e
commit d80c388f27
2 changed files with 42 additions and 42 deletions
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42
core/defuns/defuns-nlinum.el
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@ -9,9 +9,45 @@
;;;###autoload
(defun narf|nlinum-disable ()
(nlinum-mode -1)
(remove-hook 'post-command-hook 'narf|nlinum-hl-line)
(narf|nlinum-unhl-line))
(nlinum-mode -1)
(remove-hook 'post-command-hook 'narf|nlinum-hl-line t)
(narf|nlinum-unhl-line))
;;;###autoload
(defun narf|nlinum-unhl-line ()
"Unhighlight line number"
(when narf--hl-nlinum-overlay
(let* ((disp (get-text-property
0 'display (overlay-get narf--hl-nlinum-overlay 'before-string)))
(str (nth 1 disp)))
(put-text-property 0 (length str) 'face 'linum str)
(setq narf--hl-nlinum-overlay nil
narf--hl-nlinum-line nil)
disp)))
;;;###autoload
(defun narf|nlinum-hl-line (&optional line)
"Highlight line number"
(let ((line-no (or line (string-to-number (format-mode-line "%l")))))
(if (and nlinum-mode (not (eq line-no narf--hl-nlinum-line)))
(let* ((pbol (if line
(save-excursion (goto-char 1)
(forward-line line-no)
(line-beginning-position))
(line-beginning-position)))
(peol (1+ pbol))
(max (point-max)))
;; Handle EOF case
(when (>= peol max)
(setq peol max))
(jit-lock-fontify-now pbol peol)
(let ((ov (-first (lambda (item) (overlay-get item 'nlinum)) (overlays-in pbol peol))))
(when ov
(narf|nlinum-unhl-line)
(let ((str (nth 1 (get-text-property 0 'display (overlay-get ov 'before-string)))))
(put-text-property 0 (length str) 'face 'linum-highlight-face str)
(setq narf--hl-nlinum-overlay ov
narf--hl-nlinum-line line-no))))))))
(provide 'defuns-nlinum)
;;; defuns-nlinum.el ends here