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From: "Piotr Zielinski" <piotr.zielinski@gmail.com>
To: Carsten Dominik <carsten.dominik@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: Autocollapse of outline nodes
Date: Fri, 12 May 2006 03:26:48 +0200	[thread overview]
Message-ID: <3c12eb8d0605111826m7ebdf5d5mdab748c16f04a225@mail.gmail.com> (raw)
In-Reply-To: <39e6a980b34a61ebb4e57f452699359c@science.uva.nl>

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)

next prev parent reply	other threads:[~2006-05-12  1:26 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-24 12:15 Autocollapse of outline nodes Piotr Zielinski
2006-04-24 16:08 ` Xavier Maillard
2006-04-26  9:20 ` Carsten Dominik
2006-04-26 12:44   ` Piotr Zielinski
2006-05-12  1:26   ` Piotr Zielinski [this message]
2006-05-12  4:35     ` Carsten Dominik

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