From mboxrd@z Thu Jan  1 00:00:00 1970
From: Carsten Dominik <carsten.dominik@gmail.com>
Subject: Re: Autocollapse of outline nodes
Date: Fri, 12 May 2006 06:35:17 +0200
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To: Piotr Zielinski <piotr.zielinski@gmail.com>
Cc: emacs-orgmode@gnu.org

Great.

I did no know about get-buffer-window-list, this makes it a lot easier.

- Carsten

On May 12, 2006, at 3:26, Piotr Zielinski wrote:

> Below is a version of autocollapse that works correctly even if
> several windows show the same buffer.  It periodically collapses
> outline nodes that are far from the current point position [1].
>
> Piotr
>
> [1] 
> http://zerotau.blogspot.com/2006/04/autocollapse-mode-for-emacs.html
>
> (defun local-fold-from-level (beg end level)
>  (hide-region-body beg end)
>  (goto-char beg)
>  (unless (looking-at outline-regexp)
>    (outline-next-visible-heading 1))
>  (while (and (<= (point) end) (not (eobp)))
>    (when (> (outline-level) level)
>      (hide-subtree))
>    (outline-next-visible-heading 1)))
>
>
> (defun local-contains-point (beg end pointlist)
>  (let ((result))
>    (dolist (point pointlist result)
>      (setq result (or result (and (>= point beg) (<= point end)))))))
>
> (defun local-auto-fold ()
>  (save-excursion
>    (let ((pointlist (mapcar 'window-point
> 			     (get-buffer-window-list (current-buffer) nil t))))
>      (message "fold: %S: %S" (current-buffer) pointlist)
>      (beginning-of-buffer)
>      (unless (looking-at outline-regexp)
> 	(outline-next-visible-heading 1))
>      (while (not (eobp))
> 	(let ((end (save-excursion (outline-end-of-subtree) (point))))
> 	  (if (local-contains-point (point) end pointlist)
> 	      (outline-next-visible-heading 1)
> 	    (local-fold-from-level (point) end (outline-level))))))))
> 	
> (defun local-auto-fold-all ()
>  (save-excursion
>    (dolist (buffer (buffer-list))
>      (set-buffer buffer)
>      (when (eq major-mode 'org-mode)
> 	(local-auto-fold)))))
> 		
> (run-with-idle-timer 60 t 'local-auto-fold-all)
>
>

--
Carsten Dominik
Sterrenkundig Instituut "Anton Pannekoek"
Universiteit van Amsterdam
Kruislaan 403
NL-1098SJ Amsterdam
phone: +31 20 525 7477