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Re: [O] hiding footnotes


From: 42 147
Subject: Re: [O] hiding footnotes
Date: Thu, 29 Nov 2012 02:40:06 -0500

I added this to my .emacs:

(defun t-face ()
"to pass org-footnote automatically to toggle-face"
  (interactive)
(toggle-face 'org-footnote))

(defun toggle-face (&optional face-from)
  (interactive (list (read-face-name "Face" (face-at-point))))
  (let ((f (assq face-from face-remapping-alist))
    (face-to 'default))
    (if f (setq face-remapping-alist (delq f face-remapping-alist))
      (push (cons face-from face-to) face-remapping-alist))))


On Thu, Nov 29, 2012 at 1:20 AM, Jambunathan K <address@hidden> wrote:
Nick Dokos <address@hidden> writes:

> 42 147 <address@hidden> wrote:
>
>> Very nice.
>>
>> However, I'd like to write a function that toggles the color value (without
>> recourse to the customize menu), since it would be useful to highlight the
>> footnotes from time to time.
>>
>
> Anything that can be done interactively can also be done
> programatically. You know what face you are dealing with, you can get
> its foreground color with face-foreground, and you can set it with
> set-face-attribute. A crude implementation to show the basic outline:
>
>
> (setq org-footnote-fg-color (face-foreground 'org-footnote))
>
> (setq org-text-fg-color (face-foreground 'default))
>
> (defun my-toggle-footnote-fg-color ()
>   "Toggle the org-footnote face foreground color."
>   (interactive)
>   (let ((fg (face-foreground 'org-footnote)))
>     (if (string-equal fg org-footnote-fg-color)
>       (set-face-attribute 'org-footnote nil :foreground org-text-fg-color)
>       (set-face-attribute 'org-footnote nil :foreground org-footnote-fg-color))))
>
>
> The difficulties start (but do not end) with footnotes in all sorts of
> weird places (e.g. headlines) with all sorts of different
> fontifications. You'd want to blend the footnote with its immediate
> surroundings.
>
> Taking care of such situations (and various others that the above code
> mishandles) is left as an exercise...

Install the following defun, put the cursor on fontified text and do M-x
toggle-face.

    (defun toggle-face (&optional face-from)
      (interactive (list (read-face-name "Face" (face-at-point))))
      (let ((f (assq face-from face-remapping-alist))
            (face-to 'default))
        (if f (setq face-remapping-alist (delq f face-remapping-alist))
          (push (cons face-from face-to) face-remapping-alist))))

See also (info "(elisp) Face Remapping")



> Nick
>
>

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