forked from mirrors/org-mode
107 lines
3.4 KiB
EmacsLisp
107 lines
3.4 KiB
EmacsLisp
;; Need to hook into demotion, promotion functions: Redo the entire subtree
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;; Problem: I have this huge list of overlays, should I be able
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;; to reuse them?
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; should be a mode...
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(defconst org-indent-strings (make-vector 80 nil))
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(loop for i from 0 to 79 do
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(aset org-indent-strings i (org-add-props (make-string i ?\ )
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nil 'face '(:underline nil :background "grey95"))))
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(defvar org-indent-overlays nil)
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(make-variable-buffer-local 'org-indent-overlays)
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(defun org-indent-initialize-buffer ()
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(interactive)
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(when (org-mode-p)
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(org-remove-indent-overlays)
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(let (n)
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(save-excursion
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(save-restriction
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(widen)
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(goto-char (point-min))
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(while (< (point) (point-max))
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(cond
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((looking-at outline-regexp)
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(setq n (1+ (funcall outline-level))))
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(n
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(setq ov (org-make-overlay (1- (point)) (point)))
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(org-overlay-put ov 'after-string (aref org-indent-strings n))
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(org-overlay-put ov 'evaporate t)
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(org-overlay-put ov 'rear-sticky nil)
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(org-overlay-put ov 'front-sticky nil)
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(org-overlay-put ov 'org-indent n)
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(push ov org-indent-overlays)))
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(beginning-of-line 2)))))))
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(run-with-idle-timer 10 t 'org-indent-initialize-buffer)
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(defun org-indent-refresh (start end)
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"Refresh indentation overlays in the range given."
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(save-excursion
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(goto-char start)
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(when (search-forward "\n" end t)
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(goto-char start)
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(beginning-of-line 0)
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(let ((n (or (get-char-property (max (point-min) (1- (point)))
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'org-indent) 0))
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ov e)
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(while (<= (point) end)
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(mapc (lambda (x) (if (org-overlay-get x 'org-indent)
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(if (> (setq e (org-overlay-end x)) (point))
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(org-move-overlay x (1- e) e)
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(org-delete-overlay x)
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(setq org-indent-overlays
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(delq x org-indent-overlays)))))
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(overlays-at (max (point-min) (1- (point)))))
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(cond
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((looking-at outline-regexp)
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(setq n (1+ (funcall outline-level))))
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(n
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(setq ov (org-make-overlay (1- (point)) (point)))
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(org-overlay-put ov 'after-string (aref org-indent-strings n))
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(org-overlay-put ov 'evaporate t)
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(org-overlay-put ov 'rear-sticky nil)
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(org-overlay-put ov 'front-sticky nil)
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(org-overlay-put ov 'org-indent n)
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(push ov org-indent-overlays)))
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(beginning-of-line 2))))))
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(defun org-remove-indent-overlays ()
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(interactive)
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(mapc 'org-delete-overlay org-indent-overlays)
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(setq org-indent-overlays nil))
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(defun org-indent-after-change-function (start end length)
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"After change function for org-indent.
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Notices when an insert has added some lines and adjusts
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the line number extents accordingly."
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(if (= start end)
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() ;; this is a deletion
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(org-indent-refresh start end)))
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(add-hook 'after-change-functions 'org-indent-after-change-function)
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(defun org-fixup-indentation (diff)
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""
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(save-excursion
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(let ((end (save-excursion (outline-next-heading)
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(point-marker)))
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(prohibit (if (> diff 0)
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"^\\S-"
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(concat "^ \\{0," (int-to-string (- diff)) "\\}\\S-")))
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col)
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(if (eq org-adapt-indentation 'virtual)
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(org-indent-refresh (point) end)
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(unless (save-excursion (end-of-line 1)
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(re-search-forward prohibit end t))
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(while (and (< (point) end)
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(re-search-forward "^[ \t]+" end t))
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(goto-char (match-end 0))
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(setq col (current-column))
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(if (< diff 0) (replace-match ""))
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(indent-to (+ diff col))))
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(move-marker end nil)))))
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(setq org-adapt-indentation 'virtual) |