Imported Upstream version 7.9.2

1 files changed, 140 insertions, 0 deletions

diff --git a/contrib/lisp/org-checklist.el b/contrib/lisp/org-checklist.el
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+;;; org-checklist.el --- org functions for checklist handling
+
+;; Copyright (C) 2008-2012 James TD Smith
+
+;; Author: James TD Smith (@ ahktenzero (. mohorovi cc))
+;; Version: 1.0
+;; Keywords: org, checklists
+;;
+;; This program 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, or (at your option)
+;; any later version.
+;;
+;; This program 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 this program; if not, write to the Free Software
+;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+;;; Commentary:
+
+;; This file provides some functions for handing repeated tasks which involve
+;; checking off a list of items. By setting the RESET_CHECK_BOXES property in an
+;; item, when the TODO state is set to done all checkboxes under that item are
+;; cleared. If the LIST_EXPORT_BASENAME property is set, a file will be created
+;; using the value of that property plus a timestamp, containing all the items
+;; in the list which are not checked. Additionally the user will be prompted to
+;; print the list.
+;;
+;; I use this for to keep track of stores of various things (food stores,
+;; components etc) which I check periodically and use the exported list of items
+;; which are not present as a shopping list.
+;;
+;;; Usage:
+;; (require 'org-checklist)
+;;
+;; Set the RESET_CHECK_BOXES and LIST_EXPORT_BASENAME properties in items as
+;; needed.
+;;
+;;; Code:
+(require 'org)
+(load "a2ps-print" 'no-error)
+
+(setq org-default-properties (cons "RESET_CHECK_BOXES" (cons "LIST_EXPORT_BASENAME" org-default-properties)))
+
+(defgroup org-checklist nil
+  "Extended checklist handling for org"
+  :tag "Org-checklist"
+  :group 'org)
+
+(defcustom org-checklist-export-time-format "%Y%m%d%H%M"
+  "The format of timestamp appended to LIST_EXPORT_BASENAME to
+  make the name of the export file."
+  :link '(function-link format-time-string)
+  :group 'org-checklist
+  :type 'string)
+
+(defcustom org-checklist-export-function 'org-export-as-ascii
+  "function used to prepare the export file for printing"
+  :group 'org-checklist
+  :type '(radio (function-item :tag "ascii text" org-export-as-ascii)
+		(function-item :tag "HTML"  org-export-as-html)
+		(function-item :tag "LaTeX" :value org-export-as-latex)
+		(function-item :tag "XOXO" :value org-export-as-xoxo)))
+
+(defcustom org-checklist-export-params nil
+  "options for the export function file for printing"
+  :group 'org-checklist
+  :type '(repeat string))
+
+(defcustom org-checklist-a2ps-params nil
+  "options for a2ps for printing"
+  :group 'org-checklist
+  :type '(repeat string))
+
+(defun org-reset-checkbox-state-maybe ()
+  "Reset all checkboxes in an entry if the `RESET_CHECK_BOXES' property is set"
+  (interactive "*")
+  (if (org-entry-get (point) "RESET_CHECK_BOXES")
+      (org-reset-checkbox-state-subtree)))
+
+
+(defun org-make-checklist-export ()
+  "Produce a checklist containing all unchecked items from a list
+of checkbox items"
+  (interactive "*")
+  (if (org-entry-get (point) "LIST_EXPORT_BASENAME")
+      (let* ((export-file (concat (org-entry-get (point) "LIST_EXPORT_BASENAME" nil)
+				  "-" (format-time-string
+				       org-checklist-export-time-format)
+				  ".org"))
+	     (print (case (org-entry-get (point) "PRINT_EXPORT" nil)
+		      (("" "nil" nil) nil)
+		      (t t)
+		      (nil (y-or-n-p "Print list? "))))
+	     exported-lines
+	     (title "Checklist export"))
+	(save-restriction
+	  (save-excursion
+	    (org-narrow-to-subtree)
+	    (org-update-checkbox-count-maybe)
+	    (org-show-subtree)
+	    (goto-char (point-min))
+	    (when (looking-at org-complex-heading-regexp)
+	      (setq title (match-string 4)))
+	    (goto-char (point-min))
+	    (let ((end (point-max)))
+	      (while (< (point) end)
+		(when (and (org-at-item-checkbox-p)
+			   (or (string= (match-string 0) "[ ]")
+			       (string= (match-string 0) "[-]")))
+		  (add-to-list 'exported-lines (thing-at-point 'line) t))
+		(beginning-of-line 2)))
+	    (set-buffer (get-buffer-create export-file))
+	    (org-insert-heading)
+	    (insert (or title export-file) "\n")
+	    (dolist (entry exported-lines) (insert entry))
+	    (org-update-checkbox-count-maybe)
+	    (write-file export-file)
+	    (if (print)
+		(progn (funcall org-checklist-export-function
+				org-checklist-export-params)
+		       (let* ((current-a2ps-switches a2ps-switches)
+			      (a2ps-switches (append current-a2ps-switches
+						     org-checklist-a2ps-params)))
+			 (a2ps-buffer)))))))))
+
+(defun org-checklist ()
+  (when (member org-state org-done-keywords) ;; org-state dynamically bound in org.el/org-todo
+    (org-make-checklist-export)
+    (org-reset-checkbox-state-maybe)))
+
+(add-hook 'org-after-todo-state-change-hook 'org-checklist)
+
+(provide 'org-checklist)
+
+;;; org-checklist.el ends here