mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-11-27 07:37:25 +00:00
283 lines
10 KiB
EmacsLisp
283 lines
10 KiB
EmacsLisp
;;; org-indent.el --- Dynamic indentation for Org-mode
|
|
;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
|
|
;;
|
|
;; Author: Carsten Dominik <carsten at orgmode dot org>
|
|
;; Keywords: outlines, hypermedia, calendar, wp
|
|
;; Homepage: http://orgmode.org
|
|
;; Version: 6.36trans
|
|
;;
|
|
;; This file is part of GNU Emacs.
|
|
;;
|
|
;; GNU Emacs is free software: you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
;; (at your option) any later version.
|
|
;;
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
;;
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
|
;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;
|
|
;;; Commentary:
|
|
|
|
;; This is an implementation of dynamic virtual indentation. It works
|
|
;; by adding text properties to a buffer to make sure lines are
|
|
;; indented according to outline structure.
|
|
|
|
(require 'org-macs)
|
|
(require 'org-compat)
|
|
(require 'org)
|
|
(eval-when-compile
|
|
(require 'cl))
|
|
|
|
|
|
(defgroup org-indent nil
|
|
"Options concerning dynamic virtual outline indentation."
|
|
:tag "Org Indent"
|
|
:group 'org)
|
|
|
|
(defconst org-indent-max 40
|
|
"Maximum indentation in characters")
|
|
(defconst org-indent-max-levels 40
|
|
"Maximum indentation in characters")
|
|
|
|
(defvar org-indent-strings nil
|
|
"Vector with all indentation strings.
|
|
It will be set in `org-indent-initialize'.")
|
|
(defvar org-indent-stars nil
|
|
"Vector with all indentation star strings.
|
|
It will be set in `org-indent-initialize'.")
|
|
(defvar org-hide-leading-stars-before-indent-mode nil
|
|
"Used locally")
|
|
|
|
(defcustom org-indent-boundary-char ?\ ; comment to protect space char
|
|
"The end of the virtual indentation strings, a single-character string.
|
|
The default is just a space, but if you wish, you can use \"|\" or so.
|
|
This can be useful on a terminal window - under a windowing system,
|
|
it may be prettier to customize the org-indent face."
|
|
:group 'org-indent
|
|
:set (lambda (var val)
|
|
(set var val)
|
|
(and org-indent-strings (org-indent-initialize)))
|
|
:type 'character)
|
|
|
|
(defcustom org-indent-mode-turns-off-org-adapt-indentation t
|
|
"Non-nil means turning on `org-indent-mode' turns off indentation adaptation.
|
|
For details see the variable `org-adapt-indentation'."
|
|
:group 'org-indent
|
|
:type 'boolean)
|
|
|
|
(defcustom org-indent-mode-turns-on-hiding-stars t
|
|
"Non-nil means turning on `org-indent-mode' turns on `org-hide-leading-stars'."
|
|
:group 'org-indent
|
|
:type 'boolean)
|
|
|
|
(defcustom org-indent-indentation-per-level 2
|
|
"Indentation per level in number of characters."
|
|
:group 'org-indent
|
|
:type 'integer)
|
|
|
|
(defcustom org-indent-fix-section-after-idle-time 0.2
|
|
"Seconds of idle time before fixing virtual indentation of section.
|
|
The hooking-in of virtual indentation is not yet perfect. Occasionally,
|
|
a change does not trigger to proper change of indentation. For this we
|
|
have a timer action that fixes indentation in the current section after
|
|
a short amount idle time. If we ever get the integration to work perfectly,
|
|
this variable can be set to nil to get rid of the timer."
|
|
:group 'org-indent
|
|
:type '(choice
|
|
(const "Do not install idle timer" nil)
|
|
(number :tag "Idle time")))
|
|
|
|
(defun org-indent-initialize ()
|
|
"Initialize the indentation strings and set the idle timer."
|
|
;; We use an idle timer to "repair" the current section, because the
|
|
;; redisplay seems to have some problems.
|
|
(unless org-indent-strings
|
|
(when org-indent-fix-section-after-idle-time
|
|
(run-with-idle-timer
|
|
org-indent-fix-section-after-idle-time
|
|
t 'org-indent-refresh-section)))
|
|
;; Initialize the indentation and star vectors
|
|
(setq org-indent-strings (make-vector (1+ org-indent-max) nil))
|
|
(setq org-indent-stars (make-vector (1+ org-indent-max) nil))
|
|
(aset org-indent-strings 0 nil)
|
|
(aset org-indent-stars 0 nil)
|
|
(loop for i from 1 to org-indent-max do
|
|
(aset org-indent-strings i
|
|
(org-add-props
|
|
(concat (make-string (1- i) ?\ )
|
|
(char-to-string org-indent-boundary-char))
|
|
nil 'face 'org-indent)))
|
|
(loop for i from 1 to org-indent-max-levels do
|
|
(aset org-indent-stars i
|
|
(org-add-props (make-string i ?*)
|
|
nil 'face 'org-hide))))
|
|
|
|
;;;###autoload
|
|
(define-minor-mode org-indent-mode
|
|
"When active, indent text according to outline structure.
|
|
|
|
Internally this works by adding `line-prefix' properties to all non-headlines.
|
|
These properties are updated locally in idle time.
|
|
FIXME: How to update when broken?"
|
|
nil " Ind" nil
|
|
(if (org-bound-and-true-p org-inhibit-startup)
|
|
(setq org-indent-mode nil)
|
|
(if org-indent-mode
|
|
(progn
|
|
(org-set-local 'indent-tabs-mode nil)
|
|
(or org-indent-strings (org-indent-initialize))
|
|
(when org-indent-mode-turns-off-org-adapt-indentation
|
|
(org-set-local 'org-adapt-indentation nil))
|
|
(when org-indent-mode-turns-on-hiding-stars
|
|
(org-set-local 'org-hide-leading-stars-before-indent-mode
|
|
org-hide-leading-stars)
|
|
(org-set-local 'org-hide-leading-stars t))
|
|
(make-local-variable 'buffer-substring-filters)
|
|
(add-to-list 'buffer-substring-filters
|
|
'org-indent-remove-properties-from-string)
|
|
(org-add-hook 'org-after-demote-entry-hook
|
|
'org-indent-refresh-section nil 'local)
|
|
(org-add-hook 'org-after-promote-entry-hook
|
|
'org-indent-refresh-section nil 'local)
|
|
(org-add-hook 'org-font-lock-hook
|
|
'org-indent-refresh-to nil 'local)
|
|
(and font-lock-mode (org-restart-font-lock))
|
|
)
|
|
(save-excursion
|
|
(save-restriction
|
|
(org-indent-remove-properties (point-min) (point-max))
|
|
(kill-local-variable 'org-adapt-indentation)
|
|
(when (boundp 'org-hide-leading-stars-before-indent-mode)
|
|
(org-set-local 'org-hide-leading-stars
|
|
org-hide-leading-stars-before-indent-mode))
|
|
(setq buffer-substring-filters
|
|
(delq 'org-indent-remove-properties-from-string
|
|
buffer-substring-filters))
|
|
(remove-hook 'org-after-promote-entry-hook
|
|
'org-indent-refresh-section 'local)
|
|
(remove-hook 'org-after-demote-entry-hook
|
|
'org-indent-refresh-section 'local)
|
|
(and font-lock-mode (org-restart-font-lock))
|
|
(redraw-display))))))
|
|
|
|
|
|
(defface org-indent
|
|
(org-compatible-face nil nil)
|
|
"Face for outline indentation.
|
|
The default is to make it look like whitespace. But you may find it
|
|
useful to make it ever so slightly different."
|
|
:group 'org-faces)
|
|
|
|
(defun org-indent-indent-buffer ()
|
|
"Add indentation properties for the whole buffer."
|
|
(interactive)
|
|
(when org-indent-mode
|
|
(save-excursion
|
|
(save-restriction
|
|
(widen)
|
|
(org-indent-remove-properties (point-min) (point-max))
|
|
(org-indent-add-properties (point-min) (point-max))))))
|
|
|
|
(defun org-indent-remove-properties (beg end)
|
|
"Remove indentations between BEG and END."
|
|
(org-unmodified
|
|
(remove-text-properties beg end '(line-prefix nil wrap-prefix nil))))
|
|
|
|
(defun org-indent-remove-properties-from-string (string)
|
|
"Remove indentations between BEG and END."
|
|
(remove-text-properties 0 (length string)
|
|
'(line-prefix nil wrap-prefix nil) string)
|
|
string)
|
|
|
|
(defvar org-indent-outline-re (concat "^" org-outline-regexp)
|
|
"Outline heading regexp.")
|
|
|
|
(defun org-indent-add-properties (beg end)
|
|
"Add indentation properties between BEG and END.
|
|
Assumes that BEG is at the beginning of a line."
|
|
(when (or t org-indent-mode)
|
|
(let (ov b e n level exit nstars)
|
|
(org-unmodified
|
|
(save-excursion
|
|
(goto-char beg)
|
|
(while (not exit)
|
|
(setq e end)
|
|
(if (not (re-search-forward org-indent-outline-re nil t))
|
|
(setq e (point-max) exit t)
|
|
(setq e (match-beginning 0))
|
|
(if (>= e end) (setq exit t))
|
|
(setq level (- (match-end 0) (match-beginning 0) 1))
|
|
(setq nstars (- (* (1- level) org-indent-indentation-per-level)
|
|
(1- level)))
|
|
(add-text-properties
|
|
(point-at-bol) (point-at-eol)
|
|
(list 'line-prefix
|
|
(aref org-indent-stars nstars)
|
|
'wrap-prefix
|
|
(aref org-indent-strings
|
|
(* level org-indent-indentation-per-level)))))
|
|
(when (and b (> e b))
|
|
(add-text-properties
|
|
b e (list 'line-prefix (aref org-indent-strings n)
|
|
'wrap-prefix (aref org-indent-strings n))))
|
|
(setq b (1+ (point-at-eol))
|
|
n (* (or level 0) org-indent-indentation-per-level))))))))
|
|
|
|
(defun org-indent-refresh-section ()
|
|
"Refresh indentation properties in the current outline section.
|
|
Point is assumed to be at the beginning of a headline."
|
|
(interactive)
|
|
(when org-indent-mode
|
|
(let (beg end)
|
|
(save-excursion
|
|
(when (ignore-errors (org-back-to-heading))
|
|
(setq beg (point))
|
|
(setq end (or (save-excursion (or (outline-next-heading) (point)))))
|
|
(org-indent-remove-properties beg end)
|
|
(org-indent-add-properties beg end))))))
|
|
|
|
(defun org-indent-refresh-to (limit)
|
|
"Refresh indentation properties in the current outline section.
|
|
Point is assumed to be at the beginning of a headline."
|
|
(interactive)
|
|
(when org-indent-mode
|
|
(let ((beg (point)) (end limit))
|
|
(save-excursion
|
|
(and (ignore-errors (org-back-to-heading t))
|
|
(setq beg (point))))
|
|
(org-indent-remove-properties beg end)
|
|
(org-indent-add-properties beg end)))
|
|
(goto-char limit))
|
|
|
|
(defun org-indent-refresh-subtree ()
|
|
"Refresh indentation properties in the current outline subtree.
|
|
Point is assumed to be at the beginning of a headline."
|
|
(interactive)
|
|
(when org-indent-mode
|
|
(save-excursion
|
|
(let (beg end)
|
|
(setq beg (point))
|
|
(setq end (save-excursion (org-end-of-subtree t t)))
|
|
(org-indent-remove-properties beg end)
|
|
(org-indent-add-properties beg end)))))
|
|
|
|
(defun org-indent-refresh-buffer ()
|
|
"Refresh indentation properties in the current outline subtree.
|
|
Point is assumed to be at the beginning of a headline."
|
|
(interactive)
|
|
(when org-indent-mode
|
|
(org-indent-mode -1)
|
|
(org-indent-mode 1)))
|
|
|
|
(provide 'org-indent)
|
|
|
|
;; arch-tag: b76736bc-9f4a-43cd-977c-ecfd6689846a
|
|
;;; org-indent.el ends here
|