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[Orgmode] Dynamically adjusti tags position

From: Benjamin Andresen
Subject: [Orgmode] Dynamically adjusti tags position
Date: Thu, 09 Jul 2009 02:35:31 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)

hey there,

I wrote a bit of code that allows me to have the tags always at the
utmost right position in the file... I often have windows that are
bigger than the standard 80 characters wide default and I dislike seeing
the tags in the middle of the window.

I started doing this and found out that adjusting the tags every time I
resize a window breaks tracking org-mode files with git. If the last
window is just a bit smaller than last time, the complete line will be
shown as a diff. Therefor hooks are used to reset the column variable to
1 so that git tracking still works.

If anyone wants to use this or want to look over it if I could do this
smarter, I'm very happy.

If the response is positive I'll clean it up a bit and maybe it is worth
a contribution or a worg page. :-)

best regards,

(defcustom ba/org-adjust-tags-column t)
(setq ba/org-adjust-tags-column t)

(defun ba/org-adjust-tags-column-reset-tags ()
  (when (and
         (not (string= (buffer-name) "*Remember*"))
         (eql major-mode 'org-mode))
    (let ((b-m-p (buffer-modified-p)))
      (condition-case nil
            (goto-char (point-min))
            (command-execute 'outline-next-visible-heading)
            ;; disable (message) that org-set-tags generates
            (flet ((message (&rest ignored) nil))
              (org-set-tags 1 t))
            (set-buffer-modified-p b-m-p))
        (error nil)))))

(defun ba/org-adjust-tags-column-now ()
  (set (make-local-variable 'org-tags-column)
       (- (- (window-width) 3)))

(defun ba/org-adjust-tags-column-maybe ()
  (when ba/org-adjust-tags-column

(defun ba/org-adjust-tags-column-before-save ()
  (when ba/org-adjust-tags-column
     (setq org-tags-column 1)

(defun ba/org-adjust-tags-column-after-save ()
  (set-buffer-modified-p nil))

; automatically align tags on right-hand side
(add-hook 'window-configuration-change-hook
(add-hook 'before-save-hook 'ba/org-adjust-tags-column-before-save)
(add-hook 'after-save-hook 'ba/org-adjust-tags-column-after-save)

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