lisp/org-colview.el

   1 ;;; org-colview.el --- Column View in Org-mode
   2
   3 ;; Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
   4
   5 ;; Author: Carsten Dominik <carsten at orgmode dot org>
   6 ;; Keywords: outlines, hypermedia, calendar, wp
   7 ;; Homepage: http://orgmode.org
   8 ;; Version: 6.17b
   9 ;;
  10 ;; This file is part of GNU Emacs.
  11 ;;
  12 ;; GNU Emacs is free software: you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation, either version 3 of the License, or
  15 ;; (at your option) any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  24 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  25 ;;
  26 ;;; Commentary:
  27
  28 ;; This file contains the column view for Org.
  29
  30 ;;; Code:
  31
  32 (eval-when-compile (require 'cl))
  33 (require 'org)
  34
  35 (declare-function org-agenda-redo "org-agenda" ())
  36
  37 ;;; Column View
  38
  39 (defvar org-columns-overlays nil
  40   "Holds the list of current column overlays.")
  41
  42 (defvar org-columns-current-fmt nil
  43   "Local variable, holds the currently active column format.")
  44 (make-variable-buffer-local 'org-columns-current-fmt)
  45 (defvar org-columns-current-fmt-compiled nil
  46   "Local variable, holds the currently active column format.
  47 This is the compiled version of the format.")
  48 (make-variable-buffer-local 'org-columns-current-fmt-compiled)
  49 (defvar org-columns-current-widths nil
  50   "Loval variable, holds the currently widths of fields.")
  51 (make-variable-buffer-local 'org-columns-current-widths)
  52 (defvar org-columns-current-maxwidths nil
  53   "Loval variable, holds the currently active maximum column widths.")
  54 (make-variable-buffer-local 'org-columns-current-maxwidths)
  55 (defvar org-columns-begin-marker (make-marker)
  56   "Points to the position where last a column creation command was called.")
  57 (defvar org-columns-top-level-marker (make-marker)
  58   "Points to the position where current columns region starts.")
  59
  60 (defvar org-columns-map (make-sparse-keymap)
  61   "The keymap valid in column display.")
  62
  63 (defun org-columns-content ()
  64   "Switch to contents view while in columns view."
  65   (interactive)
  66   (org-overview)
  67   (org-content))
  68
  69 (org-defkey org-columns-map "c" 'org-columns-content)
  70 (org-defkey org-columns-map "o" 'org-overview)
  71 (org-defkey org-columns-map "e" 'org-columns-edit-value)
  72 (org-defkey org-columns-map "\C-c\C-t" 'org-columns-todo)
  73 (org-defkey org-columns-map "\C-c\C-c" 'org-columns-set-tags-or-toggle)
  74 (org-defkey org-columns-map "\C-c\C-o" 'org-columns-open-link)
  75 (org-defkey org-columns-map "v" 'org-columns-show-value)
  76 (org-defkey org-columns-map "q" 'org-columns-quit)
  77 (org-defkey org-columns-map "r" 'org-columns-redo)
  78 (org-defkey org-columns-map "g" 'org-columns-redo)
  79 (org-defkey org-columns-map [left] 'backward-char)
  80 (org-defkey org-columns-map "\M-b" 'backward-char)
  81 (org-defkey org-columns-map "a" 'org-columns-edit-allowed)
  82 (org-defkey org-columns-map "s" 'org-columns-edit-attributes)
  83 (org-defkey org-columns-map "\M-f" (lambda () (interactive) (goto-char (1+ (point)))))
  84 (org-defkey org-columns-map [right] (lambda () (interactive) (goto-char (1+ (point)))))
  85 (org-defkey org-columns-map [(shift right)] 'org-columns-next-allowed-value)
  86 (org-defkey org-columns-map "n" 'org-columns-next-allowed-value)
  87 (org-defkey org-columns-map [(shift left)] 'org-columns-previous-allowed-value)
  88 (org-defkey org-columns-map "p" 'org-columns-previous-allowed-value)
  89 (org-defkey org-columns-map "<" 'org-columns-narrow)
  90 (org-defkey org-columns-map ">" 'org-columns-widen)
  91 (org-defkey org-columns-map [(meta right)] 'org-columns-move-right)
  92 (org-defkey org-columns-map [(meta left)] 'org-columns-move-left)
  93 (org-defkey org-columns-map [(shift meta right)] 'org-columns-new)
  94 (org-defkey org-columns-map [(shift meta left)] 'org-columns-delete)
  95 (dotimes (i 10)
  96   (org-defkey org-columns-map (number-to-string i)
  97               `(lambda () (interactive)
  98                  (org-columns-next-allowed-value nil ,i))))
  99
 100 (easy-menu-define org-columns-menu org-columns-map "Org Column Menu"
 101   '("Column"
 102     ["Edit property" org-columns-edit-value t]
 103     ["Next allowed value" org-columns-next-allowed-value t]
 104     ["Previous allowed value" org-columns-previous-allowed-value t]
 105     ["Show full value" org-columns-show-value t]
 106     ["Edit allowed values" org-columns-edit-allowed t]
 107     "--"
 108     ["Edit column attributes" org-columns-edit-attributes t]
 109     ["Increase column width" org-columns-widen t]
 110     ["Decrease column width" org-columns-narrow t]
 111     "--"
 112     ["Move column right" org-columns-move-right t]
 113     ["Move column left" org-columns-move-left t]
 114     ["Add column" org-columns-new t]
 115     ["Delete column" org-columns-delete t]
 116     "--"
 117     ["CONTENTS" org-columns-content t]
 118     ["OVERVIEW" org-overview t]
 119     ["Refresh columns display" org-columns-redo t]
 120     "--"
 121     ["Open link" org-columns-open-link t]
 122     "--"
 123     ["Quit" org-columns-quit t]))
 124
 125 (defun org-columns-new-overlay (beg end &optional string face)
 126   "Create a new column overlay and add it to the list."
 127   (let ((ov (org-make-overlay beg end)))
 128     (org-overlay-put ov 'face (or face 'secondary-selection))
 129     (org-overlay-display ov string face)
 130     (push ov org-columns-overlays)
 131     ov))
 132
 133 (defun org-columns-display-here (&optional props dateline)
 134   "Overlay the current line with column display."
 135   (interactive)
 136   (let* ((fmt org-columns-current-fmt-compiled)
 137          (beg (point-at-bol))
 138          (level-face (save-excursion
 139                        (beginning-of-line 1)
 140                        (and (looking-at "\\(\\**\\)\\(\\* \\)")
 141                             (org-get-level-face 2))))
 142          (ref-face (or level-face
 143                        (and (eq major-mode 'org-agenda-mode)
 144                             (get-text-property (point-at-bol) 'face))
 145                        'default))
 146          (color (list :foreground (face-attribute ref-face :foreground)))
 147          (face (list color 'org-column ref-face))
 148          (face1 (list color 'org-agenda-column-dateline ref-face))
 149          (pl (or (get-text-property (point-at-bol) 'prefix-length) 0))
 150          (cphr (get-text-property (point-at-bol) 'org-complex-heading-regexp))
 151          pom property ass width f string ov column val modval s1 s2 title)
 152     ;; Check if the entry is in another buffer.
 153     (unless props
 154       (if (eq major-mode 'org-agenda-mode)
 155           (setq pom (or (get-text-property (point) 'org-hd-marker)
 156                         (get-text-property (point) 'org-marker))
 157                 props (if pom (org-entry-properties pom) nil))
 158         (setq props (org-entry-properties nil))))
 159     ;; Walk the format
 160     (while (setq column (pop fmt))
 161       (setq property (car column)
 162             title (nth 1 column)
 163             ass (if (equal property "ITEM")
 164                     (cons "ITEM"
 165                           (save-match-data
 166                             (org-no-properties
 167                              (org-remove-tabs
 168                               (buffer-substring-no-properties
 169                                (point-at-bol) (point-at-eol))))))
 170                   (assoc property props))
 171             width (or (cdr (assoc property org-columns-current-maxwidths))
 172                       (nth 2 column)
 173                       (length property))
 174             f (format "%%-%d.%ds | " width width)
 175             val (or (cdr ass) "")
 176             modval (or (and org-columns-modify-value-for-display-function
 177                             (functionp
 178                              org-columns-modify-value-for-display-function)
 179                             (funcall
 180                              org-columns-modify-value-for-display-function
 181                              title val))
 182                        (if (equal property "ITEM")
 183                            (if (org-mode-p)
 184                                (org-columns-cleanup-item
 185                                 val org-columns-current-fmt-compiled)
 186                              (org-agenda-columns-cleanup-item
 187                               val pl cphr org-columns-current-fmt-compiled)))))
 188       (setq s2 (org-columns-add-ellipses (or modval val) width))
 189       (setq string (format f s2))
 190       ;; Create the overlay
 191       (org-unmodified
 192        (setq ov (org-columns-new-overlay
 193                  beg (setq beg (1+ beg)) string (if dateline face1 face)))
 194        (org-overlay-put ov 'keymap org-columns-map)
 195        (org-overlay-put ov 'org-columns-key property)
 196        (org-overlay-put ov 'org-columns-value (cdr ass))
 197        (org-overlay-put ov 'org-columns-value-modified modval)
 198        (org-overlay-put ov 'org-columns-pom pom)
 199        (org-overlay-put ov 'org-columns-format f))
 200       (if (or (not (char-after beg))
 201               (equal (char-after beg) ?\n))
 202           (let ((inhibit-read-only t))
 203             (save-excursion
 204               (goto-char beg)
 205               (org-unmodified (insert " ")))))) ;; FIXME: add props and remove later?
 206     ;; Make the rest of the line disappear.
 207     (org-unmodified
 208      (setq ov (org-columns-new-overlay beg (point-at-eol)))
 209      (org-overlay-put ov 'invisible t)
 210      (org-overlay-put ov 'keymap org-columns-map)
 211      (org-overlay-put ov 'intangible t)
 212      (push ov org-columns-overlays)
 213      (setq ov (org-make-overlay (1- (point-at-eol)) (1+ (point-at-eol))))
 214      (org-overlay-put ov 'keymap org-columns-map)
 215      (push ov org-columns-overlays)
 216      (let ((inhibit-read-only t))
 217        (put-text-property (max (point-min) (1- (point-at-bol)))
 218                           (min (point-max) (1+ (point-at-eol)))
 219                           'read-only "Type `e' to edit property")))))
 220
 221 (defun org-columns-add-ellipses (string width)
 222   "Truncate STRING with WIDTH characters, with ellipses."
 223   (cond
 224    ((<= (length string) width) string)
 225    ((<= width (length org-columns-ellipses))
 226     (substring org-columns-ellipses 0 width))
 227    (t (concat (substring string 0 (- width (length org-columns-ellipses)))
 228               org-columns-ellipses))))
 229
 230 (defvar org-columns-full-header-line-format nil
 231   "The full header line format, will be shifted by horizontal scrolling." )
 232 (defvar org-previous-header-line-format nil
 233   "The header line format before column view was turned on.")
 234 (defvar org-columns-inhibit-recalculation nil
 235   "Inhibit recomputing of columns on column view startup.")
 236 (defvar org-columns-flyspell-was-active nil
 237   "Remember the state of `flyspell-mode' before column view.
 238 Flyspell-mode can cause problems in columns view, so it is turned off
 239 for the duration of the command.")
 240
 241 (defvar header-line-format)
 242 (defvar org-columns-previous-hscroll 0)
 243 (defun org-columns-display-here-title ()
 244   "Overlay the newline before the current line with the table title."
 245   (interactive)
 246   (let ((fmt org-columns-current-fmt-compiled)
 247         string (title "")
 248         property width f column str widths)
 249     (while (setq column (pop fmt))
 250       (setq property (car column)
 251             str (or (nth 1 column) property)
 252             width (or (cdr (assoc property org-columns-current-maxwidths))
 253                       (nth 2 column)
 254                       (length str))
 255             widths (push width widths)
 256             f (format "%%-%d.%ds | " width width)
 257             string (format f str)
 258             title (concat title string)))
 259     (setq title (concat
 260                  (org-add-props " " nil 'display '(space :align-to 0))
 261                  ;;(org-add-props title nil 'face '(:weight bold :underline t :inherit default))))
 262                  (org-add-props title nil 'face 'org-column-title)))
 263     (org-set-local 'org-previous-header-line-format header-line-format)
 264     (org-set-local 'org-columns-current-widths (nreverse widths))
 265     (setq org-columns-full-header-line-format title)
 266     (setq org-columns-previous-hscroll -1)
 267 ;    (org-columns-hscoll-title)
 268     (org-add-hook 'post-command-hook 'org-columns-hscoll-title nil 'local)))
 269
 270 (defun org-columns-hscoll-title ()
 271   "Set the header-line-format so that it scrolls along with the table."
 272   (sit-for .0001) ; need to force a redisplay to update window-hscroll
 273   (when (not (= (window-hscroll) org-columns-previous-hscroll))
 274     (setq header-line-format
 275           (concat (substring org-columns-full-header-line-format 0 1)
 276                   (substring org-columns-full-header-line-format
 277                              (1+ (window-hscroll))))
 278           org-columns-previous-hscroll (window-hscroll))
 279     (force-mode-line-update)))
 280
 281 (defun org-columns-remove-overlays ()
 282   "Remove all currently active column overlays."
 283   (interactive)
 284   (when (marker-buffer org-columns-begin-marker)
 285     (with-current-buffer (marker-buffer org-columns-begin-marker)
 286       (when (local-variable-p 'org-previous-header-line-format)
 287         (setq header-line-format org-previous-header-line-format)
 288         (kill-local-variable 'org-previous-header-line-format)
 289         (remove-hook 'post-command-hook 'org-columns-hscoll-title 'local))
 290       (move-marker org-columns-begin-marker nil)
 291       (move-marker org-columns-top-level-marker nil)
 292       (org-unmodified
 293        (mapc 'org-delete-overlay org-columns-overlays)
 294        (setq org-columns-overlays nil)
 295        (let ((inhibit-read-only t))
 296          (remove-text-properties (point-min) (point-max) '(read-only t))))
 297       (when org-columns-flyspell-was-active
 298         (flyspell-mode 1)))))
 299
 300 (defun org-columns-cleanup-item (item fmt)
 301   "Remove from ITEM what is a column in the format FMT."
 302   (if (not org-complex-heading-regexp)
 303       item
 304     (when (string-match org-complex-heading-regexp item)
 305       (setq item
 306             (concat
 307              (org-add-props (match-string 1 item) nil
 308                'org-whitespace (* 2 (1- (org-reduced-level (- (match-end 1) (match-beginning 1))))))
 309              (and (match-end 2) (not (assoc "TODO" fmt)) (concat " " (match-string 2 item)))
 310              (and (match-end 3) (not (assoc "PRIORITY" fmt)) (concat " " (match-string 3 item)))
 311              " " (save-match-data (org-columns-compact-links (match-string 4 item)))
 312              (and (match-end 5) (not (assoc "TAGS" fmt)) (concat " " (match-string 5 item)))))
 313       (add-text-properties
 314        0 (1+ (match-end 1))
 315        (list 'org-whitespace (* 2 (1- (org-reduced-level (- (match-end 1) (match-beginning 1))))))
 316        item)
 317       item)))
 318
 319 (defun org-columns-compact-links (s)
 320   "Replace [[link][desc]] with [desc] or [link]."
 321   (while (string-match org-bracket-link-regexp s)
 322     (setq s (replace-match
 323              (concat "[" (match-string (if (match-end 3) 3 1) s) "]")
 324              t t s)))
 325   s)
 326
 327 (defvar org-agenda-columns-remove-prefix-from-item)
 328 (defun org-agenda-columns-cleanup-item (item pl cphr fmt)
 329   "Cleanup the time property for agenda column view.
 330 See also the variable `org-agenda-columns-remove-prefix-from-item'."
 331   (let* ((org-complex-heading-regexp cphr)
 332          (prefix (substring item 0 pl))
 333          (rest (substring item pl))
 334          (fake (concat "* " rest))
 335          (cleaned (org-trim (substring (org-columns-cleanup-item fake fmt) 1))))
 336     (if org-agenda-columns-remove-prefix-from-item
 337         cleaned
 338       (concat prefix cleaned))))
 339
 340 (defun org-columns-show-value ()
 341   "Show the full value of the property."
 342   (interactive)
 343   (let ((value (get-char-property (point) 'org-columns-value)))
 344     (message "Value is: %s" (or value ""))))
 345
 346 (defvar org-agenda-columns-active) ;; defined in org-agenda.el
 347 (defun org-columns-quit ()
 348   "Remove the column overlays and in this way exit column editing."
 349   (interactive)
 350   (org-unmodified
 351    (org-columns-remove-overlays)
 352    (let ((inhibit-read-only t))
 353      (remove-text-properties (point-min) (point-max) '(read-only t))))
 354   (when (eq major-mode 'org-agenda-mode)
 355     (setq org-agenda-columns-active nil)
 356     (message
 357      "Modification not yet reflected in Agenda buffer, use `r' to refresh")))
 358
 359 (defun org-columns-check-computed ()
 360   "Check if this column value is computed.
 361 If yes, throw an error indicating that changing it does not make sense."
 362   (let ((val (get-char-property (point) 'org-columns-value)))
 363     (when (and (stringp val)
 364                (get-char-property 0 'org-computed val))
 365       (error "This value is computed from the entry's children"))))
 366
 367 (defun org-columns-todo (&optional arg)
 368   "Change the TODO state during column view."
 369   (interactive "P")
 370   (org-columns-edit-value "TODO"))
 371
 372 (defun org-columns-set-tags-or-toggle (&optional arg)
 373   "Toggle checkbox at point, or set tags for current headline."
 374   (interactive "P")
 375   (if (string-match "\\`\\[[ xX-]\\]\\'"
 376                     (get-char-property (point) 'org-columns-value))
 377       (org-columns-next-allowed-value)
 378     (org-columns-edit-value "TAGS")))
 379
 380 (defun org-columns-edit-value (&optional key)
 381   "Edit the value of the property at point in column view.
 382 Where possible, use the standard interface for changing this line."
 383   (interactive)
 384   (org-columns-check-computed)
 385   (let* ((external-key key)
 386          (col (current-column))
 387          (key (or key (get-char-property (point) 'org-columns-key)))
 388          (value (get-char-property (point) 'org-columns-value))
 389          (bol (point-at-bol)) (eol (point-at-eol))
 390          (pom (or (get-text-property bol 'org-hd-marker)
 391                   (point))) ; keep despite of compiler waring
 392          (line-overlays
 393           (delq nil (mapcar (lambda (x)
 394                               (and (eq (overlay-buffer x) (current-buffer))
 395                                    (>= (overlay-start x) bol)
 396                                    (<= (overlay-start x) eol)
 397                                    x))
 398                             org-columns-overlays)))
 399          nval eval allowed)
 400     (cond
 401      ((equal key "CLOCKSUM")
 402       (error "This special column cannot be edited"))
 403      ((equal key "ITEM")
 404       (setq eval '(org-with-point-at pom
 405                     (org-edit-headline))))
 406      ((equal key "TODO")
 407       (setq eval '(org-with-point-at pom
 408                     (let ((current-prefix-arg
 409                            (if external-key current-prefix-arg '(4))))
 410                       (call-interactively 'org-todo)))))
 411      ((equal key "PRIORITY")
 412       (setq eval '(org-with-point-at pom
 413                     (call-interactively 'org-priority))))
 414      ((equal key "TAGS")
 415       (setq eval '(org-with-point-at pom
 416                     (let ((org-fast-tag-selection-single-key
 417                            (if (eq org-fast-tag-selection-single-key 'expert)
 418                                t org-fast-tag-selection-single-key)))
 419                       (call-interactively 'org-set-tags)))))
 420      ((equal key "DEADLINE")
 421       (setq eval '(org-with-point-at pom
 422                     (call-interactively 'org-deadline))))
 423      ((equal key "SCHEDULED")
 424       (setq eval '(org-with-point-at pom
 425                     (call-interactively 'org-schedule))))
 426      (t
 427       (setq allowed (org-property-get-allowed-values pom key 'table))
 428       (if allowed
 429           (setq nval (org-ido-completing-read "Value: " allowed nil t))
 430         (setq nval (read-string "Edit: " value)))
 431       (setq nval (org-trim nval))
 432       (when (not (equal nval value))
 433         (setq eval '(org-entry-put pom key nval)))))
 434     (when eval
 435
 436       (cond
 437        ((equal major-mode 'org-agenda-mode)
 438         (org-columns-eval eval)
 439         ;; The following let preserves the current format, and makes sure
 440         ;; that in only a single file things need to be upated.
 441         (let* ((org-agenda-overriding-columns-format org-columns-current-fmt)
 442                (buffer (marker-buffer pom))
 443                (org-agenda-contributing-files
 444                 (list (with-current-buffer buffer
 445                         (buffer-file-name (buffer-base-buffer))))))
 446           (org-agenda-columns)))
 447        (t
 448         (let ((inhibit-read-only t))
 449           (org-unmodified
 450            (remove-text-properties
 451             (max (point-min) (1- bol)) eol '(read-only t)))
 452           (unwind-protect
 453               (progn
 454                 (setq org-columns-overlays
 455                       (org-delete-all line-overlays org-columns-overlays))
 456                 (mapc 'org-delete-overlay line-overlays)
 457                 (org-columns-eval eval))
 458             (org-columns-display-here)))
 459         (org-move-to-column col)
 460         (if (and (org-mode-p)
 461                  (nth 3 (assoc key org-columns-current-fmt-compiled)))
 462             (org-columns-update key)))))))
 463
 464 (defun org-edit-headline () ; FIXME: this is not columns specific.  Make interactive?????  Use from agenda????
 465   "Edit the current headline, the part without TODO keyword, TAGS."
 466   (org-back-to-heading)
 467   (when (looking-at org-todo-line-regexp)
 468     (let ((pos (point))
 469           (pre (buffer-substring (match-beginning 0) (match-beginning 3)))
 470           (txt (match-string 3))
 471           (post "")
 472           txt2)
 473       (if (string-match (org-re "[ \t]+:[[:alnum:]:_@]+:[ \t]*$") txt)
 474           (setq post (match-string 0 txt)
 475                 txt (substring txt 0 (match-beginning 0))))
 476       (setq txt2 (read-string "Edit: " txt))
 477       (when (not (equal txt txt2))
 478         (goto-char pos)
 479         (insert pre txt2 post)
 480         (delete-region (point) (point-at-eol))
 481         (org-set-tags nil t)))))
 482
 483 (defun org-columns-edit-allowed ()
 484   "Edit the list of allowed values for the current property."
 485   (interactive)
 486   (let* ((pom (or (get-text-property (point-at-bol) 'org-marker)
 487                   (get-text-property (point-at-bol) 'org-hd-marker)
 488                   (point)))
 489          (key (get-char-property (point) 'org-columns-key))
 490          (key1 (concat key "_ALL"))
 491          (allowed (org-entry-get pom key1 t))
 492          nval)
 493     ;; FIXME: Cover editing TODO, TAGS etc in-buffer settings.????
 494     ;; FIXME: Write back to #+PROPERTY setting if that is needed.
 495     (setq nval (read-string "Allowed: " allowed))
 496     (org-entry-put
 497      (cond ((marker-position org-entry-property-inherited-from)
 498             org-entry-property-inherited-from)
 499            ((marker-position org-columns-top-level-marker)
 500             org-columns-top-level-marker)
 501            (t pom))
 502      key1 nval)))
 503
 504 (defun org-columns-eval (form)
 505   (let (hidep)
 506     (save-excursion
 507       (beginning-of-line 1)
 508       ;; `next-line' is needed here, because it skips invisible line.
 509       (condition-case nil (org-no-warnings (next-line 1)) (error nil))
 510       (setq hidep (org-on-heading-p 1)))
 511     (eval form)
 512     (and hidep (hide-entry))))
 513
 514 (defun org-columns-previous-allowed-value ()
 515   "Switch to the previous allowed value for this column."
 516   (interactive)
 517   (org-columns-next-allowed-value t))
 518
 519 (defun org-columns-next-allowed-value (&optional previous nth)
 520   "Switch to the next allowed value for this column.
 521 When PREVIOUS is set, go to the previous value.  When NTH is
 522 an integer, select that value."
 523   (interactive)
 524   (org-columns-check-computed)
 525   (let* ((col (current-column))
 526          (key (get-char-property (point) 'org-columns-key))
 527          (value (get-char-property (point) 'org-columns-value))
 528          (bol (point-at-bol)) (eol (point-at-eol))
 529          (pom (or (get-text-property bol 'org-hd-marker)
 530                   (point))) ; keep despite of compiler waring
 531          (line-overlays
 532           (delq nil (mapcar (lambda (x)
 533                               (and (eq (overlay-buffer x) (current-buffer))
 534                                    (>= (overlay-start x) bol)
 535                                    (<= (overlay-start x) eol)
 536                                    x))
 537                             org-columns-overlays)))
 538          (allowed (or (org-property-get-allowed-values pom key)
 539                       (and (memq
 540                             (nth 4 (assoc key org-columns-current-fmt-compiled))
 541                             '(checkbox checkbox-n-of-m checkbox-percent))
 542                            '("[ ]" "[X]"))
 543                       (org-colview-construct-allowed-dates value)))
 544          nval)
 545     (when (integerp nth)
 546       (setq nth (1- nth))
 547       (if (= nth -1) (setq nth 9)))
 548     (when (equal key "ITEM")
 549       (error "Cannot edit item headline from here"))
 550     (unless (or allowed (member key '("SCHEDULED" "DEADLINE")))
 551       (error "Allowed values for this property have not been defined"))
 552     (if (member key '("SCHEDULED" "DEADLINE"))
 553         (setq nval (if previous 'earlier 'later))
 554       (if previous (setq allowed (reverse allowed)))
 555       (cond
 556        (nth
 557         (setq nval (nth nth allowed))
 558         (if (not nval)
 559             (error "There are only %d allowed values for property `%s'"
 560                    (length allowed) key)))
 561        ((member value allowed)
 562         (setq nval (or (car (cdr (member value allowed)))
 563                        (car allowed)))
 564         (if (equal nval value)
 565             (error "Only one allowed value for this property")))
 566        (t (setq nval (car allowed)))))
 567     (cond
 568      ((equal major-mode 'org-agenda-mode)
 569       (org-columns-eval '(org-entry-put pom key nval))
 570       ;; The following let preserves the current format, and makes sure
 571       ;; that in only a single file things need to be upated.
 572       (let* ((org-agenda-overriding-columns-format org-columns-current-fmt)
 573              (buffer (marker-buffer pom))
 574              (org-agenda-contributing-files
 575               (list (with-current-buffer buffer
 576                       (buffer-file-name (buffer-base-buffer))))))
 577         (org-agenda-columns)))
 578      (t
 579       (let ((inhibit-read-only t))
 580         (remove-text-properties (1- bol) eol '(read-only t))
 581         (unwind-protect
 582             (progn
 583               (setq org-columns-overlays
 584                     (org-delete-all line-overlays org-columns-overlays))
 585               (mapc 'org-delete-overlay line-overlays)
 586               (org-columns-eval '(org-entry-put pom key nval)))
 587           (org-columns-display-here)))
 588       (org-move-to-column col)
 589       (and (nth 3 (assoc key org-columns-current-fmt-compiled))
 590            (org-columns-update key))))))
 591
 592 (defun org-colview-construct-allowed-dates (s)
 593   "Construct a list of three dates around the date in S.
 594 This respects the format of the time stamp in S, active or non-active,
 595 and also including time or not.  S must be just a time stamp, no text
 596 around it."
 597   (when (string-match (concat "^" org-ts-regexp3 "$") s)
 598     (let* ((time (org-parse-time-string s 'nodefaults))
 599            (active (equal (string-to-char s) ?<))
 600            (fmt (funcall (if (nth 1 time) 'cdr 'car) org-time-stamp-formats))
 601            time-before time-after)
 602       (unless active (setq fmt (concat "[" (substring fmt 1 -1) "]")))
 603       (setf (car time) (or (car time) 0))
 604       (setf (nth 1 time) (or (nth 1 time) 0))
 605       (setf (nth 2 time) (or (nth 2 time) 0))
 606       (setq time-before (copy-sequence time))
 607       (setq time-after (copy-sequence time))
 608       (setf (nth 3 time-before) (1- (nth 3 time)))
 609       (setf (nth 3 time-after) (1+ (nth 3 time)))
 610       (mapcar (lambda (x) (format-time-string fmt (apply 'encode-time x)))
 611               (list time-before time time-after)))))
 612
 613 (defun org-verify-version (task)
 614   (cond
 615    ((eq task 'columns)
 616     (if (or (featurep 'xemacs)
 617             (< emacs-major-version 22))
 618         (error "Emacs 22 is required for the columns feature")))))
 619
 620 (defun org-columns-open-link (&optional arg)
 621   (interactive "P")
 622   (let ((value (get-char-property (point) 'org-columns-value)))
 623     (org-open-link-from-string value arg)))
 624
 625 (defun org-columns-get-format-and-top-level ()
 626   (let (fmt)
 627     (when (condition-case nil (org-back-to-heading) (error nil))
 628       (setq fmt (org-entry-get nil "COLUMNS" t)))
 629     (setq fmt (or fmt org-columns-default-format))
 630     (org-set-local 'org-columns-current-fmt fmt)
 631     (org-columns-compile-format fmt)
 632     (if (marker-position org-entry-property-inherited-from)
 633         (move-marker org-columns-top-level-marker
 634                      org-entry-property-inherited-from)
 635       (move-marker org-columns-top-level-marker (point)))
 636     fmt))
 637
 638 (defun org-columns ()
 639   "Turn on column view on an org-mode file."
 640   (interactive)
 641   (org-verify-version 'columns)
 642   (org-columns-remove-overlays)
 643   (move-marker org-columns-begin-marker (point))
 644   (let (beg end fmt cache maxwidths)
 645     (setq fmt (org-columns-get-format-and-top-level))
 646     (save-excursion
 647       (goto-char org-columns-top-level-marker)
 648       (setq beg (point))
 649       (unless org-columns-inhibit-recalculation
 650         (org-columns-compute-all))
 651       (setq end (or (condition-case nil (org-end-of-subtree t t) (error nil))
 652                     (point-max)))
 653       ;; Get and cache the properties
 654       (goto-char beg)
 655       (when (assoc "CLOCKSUM" org-columns-current-fmt-compiled)
 656         (save-excursion
 657           (save-restriction
 658             (narrow-to-region beg end)
 659             (org-clock-sum))))
 660       (while (re-search-forward (concat "^" outline-regexp) end t)
 661         (push (cons (org-current-line) (org-entry-properties)) cache))
 662       (when cache
 663         (setq maxwidths (org-columns-get-autowidth-alist fmt cache))
 664         (org-set-local 'org-columns-current-maxwidths maxwidths)
 665         (org-columns-display-here-title)
 666         (when (org-set-local 'org-columns-flyspell-was-active
 667                              (org-bound-and-true-p flyspell-mode))
 668           (flyspell-mode 0))
 669         (mapc (lambda (x)
 670                 (goto-line (car x))
 671                 (org-columns-display-here (cdr x)))
 672               cache)))))
 673
 674 (defun org-columns-new (&optional prop title width op fmt &rest rest)
 675   "Insert a new column, to the left of the current column."
 676   (interactive)
 677   (let ((editp (and prop (assoc prop org-columns-current-fmt-compiled)))
 678         cell)
 679     (setq prop (org-ido-completing-read
 680                 "Property: " (mapcar 'list (org-buffer-property-keys t nil t))
 681                 nil nil prop))
 682     (setq title (read-string (concat "Column title [" prop "]: ") (or title prop)))
 683     (setq width (read-string "Column width: " (if width (number-to-string width))))
 684     (if (string-match "\\S-" width)
 685         (setq width (string-to-number width))
 686       (setq width nil))
 687     (setq fmt (org-ido-completing-read "Summary [none]: "
 688                                '(("none") ("add_numbers") ("currency") ("add_times") ("checkbox") ("checkbox-n-of-m") ("checkbox-percent"))
 689                                nil t))
 690     (if (string-match "\\S-" fmt)
 691         (setq fmt (intern fmt))
 692       (setq fmt nil))
 693     (if (eq fmt 'none) (setq fmt nil))
 694     (if editp
 695         (progn
 696           (setcar editp prop)
 697           (setcdr editp (list title width nil fmt)))
 698       (setq cell (nthcdr (1- (current-column))
 699                          org-columns-current-fmt-compiled))
 700       (setcdr cell (cons (list prop title width nil fmt)
 701                          (cdr cell))))
 702     (org-columns-store-format)
 703     (org-columns-redo)))
 704
 705 (defun org-columns-delete ()
 706   "Delete the column at point from columns view."
 707   (interactive)
 708   (let* ((n (current-column))
 709          (title (nth 1 (nth n org-columns-current-fmt-compiled))))
 710     (when (y-or-n-p
 711            (format "Are you sure you want to remove column \"%s\"? " title))
 712       (setq org-columns-current-fmt-compiled
 713             (delq (nth n org-columns-current-fmt-compiled)
 714                   org-columns-current-fmt-compiled))
 715       (org-columns-store-format)
 716       (org-columns-redo)
 717       (if (>= (current-column) (length org-columns-current-fmt-compiled))
 718           (backward-char 1)))))
 719
 720 (defun org-columns-edit-attributes ()
 721   "Edit the attributes of the current column."
 722   (interactive)
 723   (let* ((n (current-column))
 724          (info (nth n org-columns-current-fmt-compiled)))
 725     (apply 'org-columns-new info)))
 726
 727 (defun org-columns-widen (arg)
 728   "Make the column wider by ARG characters."
 729   (interactive "p")
 730   (let* ((n (current-column))
 731          (entry (nth n org-columns-current-fmt-compiled))
 732          (width (or (nth 2 entry)
 733                     (cdr (assoc (car entry) org-columns-current-maxwidths)))))
 734     (setq width (max 1 (+ width arg)))
 735     (setcar (nthcdr 2 entry) width)
 736     (org-columns-store-format)
 737     (org-columns-redo)))
 738
 739 (defun org-columns-narrow (arg)
 740   "Make the column narrower by ARG characters."
 741   (interactive "p")
 742   (org-columns-widen (- arg)))
 743
 744 (defun org-columns-move-right ()
 745   "Swap this column with the one to the right."
 746   (interactive)
 747   (let* ((n (current-column))
 748          (cell (nthcdr n org-columns-current-fmt-compiled))
 749          e)
 750     (when (>= n (1- (length org-columns-current-fmt-compiled)))
 751       (error "Cannot shift this column further to the right"))
 752     (setq e (car cell))
 753     (setcar cell (car (cdr cell)))
 754     (setcdr cell (cons e (cdr (cdr cell))))
 755     (org-columns-store-format)
 756     (org-columns-redo)
 757     (forward-char 1)))
 758
 759 (defun org-columns-move-left ()
 760   "Swap this column with the one to the left."
 761   (interactive)
 762   (let* ((n (current-column)))
 763     (when (= n 0)
 764       (error "Cannot shift this column further to the left"))
 765     (backward-char 1)
 766     (org-columns-move-right)
 767     (backward-char 1)))
 768
 769 (defun org-columns-store-format ()
 770   "Store the text version of the current columns format in appropriate place.
 771 This is either in the COLUMNS property of the node starting the current column
 772 display, or in the #+COLUMNS line of the current buffer."
 773   (let (fmt (cnt 0))
 774     (setq fmt (org-columns-uncompile-format org-columns-current-fmt-compiled))
 775     (org-set-local 'org-columns-current-fmt fmt)
 776     (if (marker-position org-columns-top-level-marker)
 777         (save-excursion
 778           (goto-char org-columns-top-level-marker)
 779           (if (and (org-at-heading-p)
 780                    (org-entry-get nil "COLUMNS"))
 781               (org-entry-put nil "COLUMNS" fmt)
 782             (goto-char (point-min))
 783             ;; Overwrite all #+COLUMNS lines....
 784             (while (re-search-forward "^#\\+COLUMNS:.*" nil t)
 785               (setq cnt (1+ cnt))
 786               (replace-match (concat "#+COLUMNS: " fmt) t t))
 787             (unless (> cnt 0)
 788               (goto-char (point-min))
 789               (or (org-on-heading-p t) (outline-next-heading))
 790               (let ((inhibit-read-only t))
 791                 (insert-before-markers "#+COLUMNS: " fmt "\n")))
 792             (org-set-local 'org-columns-default-format fmt))))))
 793
 794 (defvar org-agenda-overriding-columns-format nil
 795   "When set, overrides any other format definition for the agenda.
 796 Don't set this, this is meant for dynamic scoping.")
 797
 798 (defun org-columns-get-autowidth-alist (s cache)
 799   "Derive the maximum column widths from the format and the cache."
 800   (let ((start 0) rtn)
 801     (while (string-match (org-re "%\\([[:alpha:]][[:alnum:]_-]*\\)") s start)
 802       (push (cons (match-string 1 s) 1) rtn)
 803       (setq start (match-end 0)))
 804     (mapc (lambda (x)
 805             (setcdr x (apply 'max
 806                              (mapcar
 807                               (lambda (y)
 808                                 (length (or (cdr (assoc (car x) (cdr y))) " ")))
 809                               cache))))
 810           rtn)
 811     rtn))
 812
 813 (defun org-columns-compute-all ()
 814   "Compute all columns that have operators defined."
 815   (org-unmodified
 816    (remove-text-properties (point-min) (point-max) '(org-summaries t)))
 817   (let ((columns org-columns-current-fmt-compiled) col)
 818     (while (setq col (pop columns))
 819       (when (nth 3 col)
 820         (save-excursion
 821           (org-columns-compute (car col)))))))
 822
 823 (defun org-columns-update (property)
 824   "Recompute PROPERTY, and update the columns display for it."
 825   (org-columns-compute property)
 826   (let (fmt val pos)
 827     (save-excursion
 828       (mapc (lambda (ov)
 829               (when (equal (org-overlay-get ov 'org-columns-key) property)
 830                 (setq pos (org-overlay-start ov))
 831                 (goto-char pos)
 832                 (when (setq val (cdr (assoc property
 833                                             (get-text-property
 834                                              (point-at-bol) 'org-summaries))))
 835                   (setq fmt (org-overlay-get ov 'org-columns-format))
 836                   (org-overlay-put ov 'org-columns-value val)
 837                   (org-overlay-put ov 'display (format fmt val)))))
 838             org-columns-overlays))))
 839
 840 (defun org-columns-compute (property)
 841   "Sum the values of property PROPERTY hierarchically, for the entire buffer."
 842   (interactive)
 843   (let* ((re (concat "^" outline-regexp))
 844          (lmax 30) ; Does anyone use deeper levels???
 845          (lsum (make-vector lmax 0))
 846          (lflag (make-vector lmax nil))
 847          (level 0)
 848          (ass (assoc property org-columns-current-fmt-compiled))
 849          (format (nth 4 ass))
 850          (printf (nth 5 ass))
 851          (beg org-columns-top-level-marker)
 852          last-level val valflag flag end sumpos sum-alist sum str str1 useval)
 853     (save-excursion
 854       ;; Find the region to compute
 855       (goto-char beg)
 856       (setq end (condition-case nil (org-end-of-subtree t) (error (point-max))))
 857       (goto-char end)
 858       ;; Walk the tree from the back and do the computations
 859       (while (re-search-backward re beg t)
 860         (setq sumpos (match-beginning 0)
 861               last-level level
 862               level (org-outline-level)
 863               val (org-entry-get nil property)
 864               valflag (and val (string-match "\\S-" val)))
 865         (cond
 866          ((< level last-level)
 867           ;; put the sum of lower levels here as a property
 868           (setq sum (aref lsum last-level)   ; current sum
 869                 flag (aref lflag last-level) ; any valid entries from children?
 870                 str (org-columns-number-to-string sum format printf)
 871                 str1 (org-add-props (copy-sequence str) nil 'org-computed t 'face 'bold)
 872                 useval (if flag str1 (if valflag val ""))
 873                 sum-alist (get-text-property sumpos 'org-summaries))
 874           (if (assoc property sum-alist)
 875               (setcdr (assoc property sum-alist) useval)
 876             (push (cons property useval) sum-alist)
 877             (org-unmodified
 878              (add-text-properties sumpos (1+ sumpos)
 879                                   (list 'org-summaries sum-alist))))
 880           (when (and val (not (equal val (if flag str val))))
 881             (org-entry-put nil property (if flag str val)))
 882           ;; add current to current  level accumulator
 883           (when (or flag valflag)
 884             (aset lsum level (+ (aref lsum level)
 885                                 (if flag sum (org-column-string-to-number
 886                                               (if flag str val) format))))
 887             (aset lflag level t))
 888           ;; clear accumulators for deeper levels
 889           (loop for l from (1+ level) to (1- lmax) do
 890                 (aset lsum l 0)
 891                 (aset lflag l nil)))
 892          ((>= level last-level)
 893           ;; add what we have here to the accumulator for this level
 894           (aset lsum level (+ (aref lsum level)
 895                               (org-column-string-to-number (or val "0") format)))
 896           (and valflag (aset lflag level t)))
 897          (t (error "This should not happen")))))))
 898
 899 (defun org-columns-redo ()
 900   "Construct the column display again."
 901   (interactive)
 902   (message "Recomputing columns...")
 903   (let ((line (org-current-line))
 904         (col (current-column)))
 905     (save-excursion
 906       (if (marker-position org-columns-begin-marker)
 907           (goto-char org-columns-begin-marker))
 908       (org-columns-remove-overlays)
 909       (if (org-mode-p)
 910           (call-interactively 'org-columns)
 911         (org-agenda-redo)
 912         (call-interactively 'org-agenda-columns)))
 913     (goto-line line)
 914     (move-to-column col))
 915   (message "Recomputing columns...done"))
 916
 917 (defun org-columns-not-in-agenda ()
 918   (if (eq major-mode 'org-agenda-mode)
 919       (error "This command is only allowed in Org-mode buffers")))
 920
 921
 922 (defun org-string-to-number (s)
 923   "Convert string to number, and interpret hh:mm:ss."
 924   (if (not (string-match ":" s))
 925       (string-to-number s)
 926     (let ((l (nreverse (org-split-string s ":"))) (sum 0.0))
 927       (while l
 928         (setq sum (+ (string-to-number (pop l)) (/ sum 60))))
 929       sum)))
 930
 931 (defun org-columns-number-to-string (n fmt &optional printf)
 932   "Convert a computed column number to a string value, according to FMT."
 933   (cond
 934    ((eq fmt 'add_times)
 935     (let* ((h (floor n)) (m (floor (+ 0.5 (* 60 (- n h))))))
 936       (format org-time-clocksum-format h m)))
 937    ((eq fmt 'checkbox)
 938     (cond ((= n (floor n)) "[X]")
 939           ((> n 1.) "[-]")
 940           (t "[ ]")))
 941    ((memq fmt '(checkbox-n-of-m checkbox-percent))
 942     (let* ((n1 (floor n)) (n2 (floor (+ .5 (* 1000000 (- n n1))))))
 943       (org-nofm-to-completion n1 (+ n2 n1) (eq fmt 'checkbox-percent))))
 944    (printf (format printf n))
 945    ((eq fmt 'currency)
 946     (format "%.2f" n))
 947    (t (number-to-string n))))
 948
 949 (defun org-nofm-to-completion (n m &optional percent)
 950   (if (not percent)
 951       (format "[%d/%d]" n m)
 952     (format "[%d%%]"(floor (+ 0.5 (* 100. (/ (* 1.0 n) m)))))))
 953
 954 (defun org-column-string-to-number (s fmt)
 955   "Convert a column value to a number that can be used for column computing."
 956   (cond
 957    ((string-match ":" s)
 958     (let ((l (nreverse (org-split-string s ":"))) (sum 0.0))
 959       (while l
 960         (setq sum (+ (string-to-number (pop l)) (/ sum 60))))
 961       sum))
 962    ((memq fmt '(checkbox checkbox-n-of-m checkbox-percent))
 963     (if (equal s "[X]") 1. 0.000001))
 964    (t (string-to-number s))))
 965
 966 (defun org-columns-uncompile-format (cfmt)
 967   "Turn the compiled columns format back into a string representation."
 968   (let ((rtn "") e s prop title op width fmt printf)
 969     (while (setq e (pop cfmt))
 970       (setq prop (car e)
 971             title (nth 1 e)
 972             width (nth 2 e)
 973             op (nth 3 e)
 974             fmt (nth 4 e)
 975             printf (nth 5 e))
 976       (cond
 977        ((eq fmt 'add_times) (setq op ":"))
 978        ((eq fmt 'checkbox) (setq op "X"))
 979        ((eq fmt 'checkbox-n-of-m) (setq op "X/"))
 980        ((eq fmt 'checkbox-percent) (setq op "X%"))
 981        ((eq fmt 'add_numbers) (setq op "+"))
 982        ((eq fmt 'currency) (setq op "$")))
 983       (if (and op printf) (setq op (concat op ";" printf)))
 984       (if (equal title prop) (setq title nil))
 985       (setq s (concat "%" (if width (number-to-string width))
 986                       prop
 987                       (if title (concat "(" title ")"))
 988                       (if op (concat "{" op "}"))))
 989       (setq rtn (concat rtn " " s)))
 990     (org-trim rtn)))
 991
 992 (defun org-columns-compile-format (fmt)
 993   "Turn a column format string into an alist of specifications.
 994 The alist has one entry for each column in the format.  The elements of
 995 that list are:
 996 property     the property
 997 title        the title field for the columns
 998 width        the column width in characters, can be nil for automatic
 999 operator     the operator if any
1000 format       the output format for computed results, derived from operator
1001 printf       a printf format for computed values"
1002   (let ((start 0) width prop title op f printf)
1003     (setq org-columns-current-fmt-compiled nil)
1004     (while (string-match
1005             (org-re "%\\([0-9]+\\)?\\([[:alnum:]_-]+\\)\\(?:(\\([^)]+\\))\\)?\\(?:{\\([^}]+\\)}\\)?\\s-*")
1006             fmt start)
1007       (setq start (match-end 0)
1008             width (match-string 1 fmt)
1009             prop (match-string 2 fmt)
1010             title (or (match-string 3 fmt) prop)
1011             op (match-string 4 fmt)
1012             f nil
1013             printf nil)
1014       (if width (setq width (string-to-number width)))
1015       (when (and op (string-match ";" op))
1016         (setq printf (substring op (match-end 0))
1017               op (substring op 0 (match-beginning 0))))
1018       (cond
1019        ((equal op "+")  (setq f 'add_numbers))
1020        ((equal op "$")  (setq f 'currency))
1021        ((equal op ":")  (setq f 'add_times))
1022        ((equal op "X")  (setq f 'checkbox))
1023        ((equal op "X/") (setq f 'checkbox-n-of-m))
1024        ((equal op "X%") (setq f 'checkbox-percent))
1025        )
1026       (push (list prop title width op f printf) org-columns-current-fmt-compiled))
1027     (setq org-columns-current-fmt-compiled
1028           (nreverse org-columns-current-fmt-compiled))))
1029
1030
1031 ;;; Dynamic block for Column view
1032
1033 (defun org-columns-capture-view (&optional maxlevel skip-empty-rows)
1034   "Get the column view of the current buffer or subtree.
1035 The first optional argument MAXLEVEL sets the level limit.  A
1036 second optional argument SKIP-EMPTY-ROWS tells whether to skip
1037 empty rows, an empty row being one where all the column view
1038 specifiers except ITEM are empty.  This function returns a list
1039 containing the title row and all other rows.  Each row is a list
1040 of fields."
1041   (save-excursion
1042     (let* ((title (mapcar 'cadr org-columns-current-fmt-compiled))
1043            (n (length title)) row tbl)
1044       (goto-char (point-min))
1045       (while (re-search-forward "^\\(\\*+\\) " nil t)
1046         (when (and (or (null maxlevel)
1047                        (>= maxlevel
1048                            (if org-odd-levels-only
1049                                (/ (1+ (length (match-string 1))) 2)
1050                              (length (match-string 1)))))
1051                    (get-char-property (match-beginning 0) 'org-columns-key))
1052           (setq row nil)
1053           (loop for i from 0 to (1- n) do
1054                 (push (or (get-char-property (+ (match-beginning 0) i) 'org-columns-value-modified)
1055                           (get-char-property (+ (match-beginning 0) i) 'org-columns-value)
1056                           "")
1057                       row))
1058           (setq row (nreverse row))
1059           (unless (and skip-empty-rows
1060                        (eq 1 (length (delete "" (delete-dups row)))))
1061             (push row tbl))))
1062       (append (list title 'hline) (nreverse tbl)))))
1063
1064 (defun org-dblock-write:columnview (params)
1065   "Write the column view table.
1066 PARAMS is a property list of parameters:
1067
1068 :width    enforce same column widths with <N> specifiers.
1069 :id       the :ID: property of the entry where the columns view
1070           should be built.  When the symbol `local', call locally.
1071           When `global' call column view with the cursor at the beginning
1072           of the buffer (usually this means that the whole buffer switches
1073           to column view).  When \"file:path/to/file.org\", invoke column
1074           view at the start of that file.  Otherwise, the ID is located
1075           using `org-id-find'.
1076 :hlines   When t, insert a hline before each item.  When a number, insert
1077           a hline before each level <= that number.
1078 :vlines   When t, make each column a colgroup to enforce vertical lines.
1079 :maxlevel When set to a number, don't capture headlines below this level.
1080 :skip-empty-rows
1081           When t, skip rows where all specifiers other than ITEM are empty."
1082   (let ((pos (move-marker (make-marker) (point)))
1083         (hlines (plist-get params :hlines))
1084         (vlines (plist-get params :vlines))
1085         (maxlevel (plist-get params :maxlevel))
1086         (content-lines (org-split-string (plist-get params :content) "\n"))
1087         (skip-empty-rows (plist-get params :skip-empty-rows))
1088         tbl id idpos nfields tmp recalc line
1089         id-as-string view-file view-pos)
1090     (when (setq id (plist-get params :id))
1091       (setq id-as-string (cond ((numberp id) (number-to-string id))
1092                                ((symbolp id) (symbol-name id))
1093                                ((stringp id) id)
1094                                (t "")))
1095       (cond ((not id) nil)
1096             ((eq id 'global) (setq view-pos (point-min)))
1097             ((eq id 'local))
1098             ((string-match "^file:\\(.*\\)" id-as-string)
1099              (setq view-file (match-string 1 id-as-string)
1100                    view-pos 1)
1101              (unless (file-exists-p view-file)
1102                (error "No such file: \"%s\"" id-as-string)))
1103             ((setq idpos (org-find-entry-with-id id))
1104              (setq view-pos idpos))
1105             ((setq idpos (org-id-find id))
1106              (setq view-file (car idpos))
1107              (setq view-pos (cdr idpos)))
1108             (t (error "Cannot find entry with :ID: %s" id))))
1109     (with-current-buffer (if view-file
1110                              (get-file-buffer view-file)
1111                            (current-buffer))
1112       (save-excursion
1113         (save-restriction
1114           (widen)
1115           (goto-char (or view-pos (point)))
1116           (org-columns)
1117           (setq tbl (org-columns-capture-view maxlevel skip-empty-rows))
1118           (setq nfields (length (car tbl)))
1119           (org-columns-quit))))
1120     (goto-char pos)
1121     (move-marker pos nil)
1122     (when tbl
1123       (when (plist-get params :hlines)
1124         (setq tmp nil)
1125         (while tbl
1126           (if (eq (car tbl) 'hline)
1127               (push (pop tbl) tmp)
1128             (if (string-match "\\` *\\(\\*+\\)" (caar tbl))
1129                 (if (and (not (eq (car tmp) 'hline))
1130                          (or (eq hlines t)
1131                              (and (numberp hlines)
1132                                   (<= (- (match-end 1) (match-beginning 1))
1133                                       hlines))))
1134                     (push 'hline tmp)))
1135             (push (pop tbl) tmp)))
1136         (setq tbl (nreverse tmp)))
1137       (when vlines
1138         (setq tbl (mapcar (lambda (x)
1139                             (if (eq 'hline x) x (cons "" x)))
1140                           tbl))
1141         (setq tbl (append tbl (list (cons "/" (make-list nfields "<>"))))))
1142       (setq pos (point))
1143       (when content-lines
1144         (while (string-match "^#" (car content-lines))
1145           (insert (pop content-lines) "\n")))
1146       (insert (org-listtable-to-string tbl))
1147       (when (plist-get params :width)
1148         (insert "\n|" (mapconcat (lambda (x) (format "<%d>" (max 3 x)))
1149                                  org-columns-current-widths "|")))
1150       (while (setq line (pop content-lines))
1151         (when (string-match "^#" line)
1152           (insert "\n" line)
1153           (when (string-match "^#\\+TBLFM" line)
1154             (setq recalc t))))
1155       (if recalc
1156           (progn (goto-char pos) (org-table-recalculate 'all))
1157         (goto-char pos)
1158         (org-table-align)))))
1159
1160 (defun org-listtable-to-string (tbl)
1161   "Convert a listtable TBL to a string that contains the Org-mode table.
1162 The table still need to be aligned.  The resulting string has no leading
1163 and tailing newline characters."
1164   (mapconcat
1165    (lambda (x)
1166      (cond
1167       ((listp x)
1168        (concat "|" (mapconcat 'identity x "|") "|"))
1169       ((eq x 'hline) "|-|")
1170       (t (error "Garbage in listtable: %s" x))))
1171    tbl "\n"))
1172
1173 (defun org-insert-columns-dblock ()
1174   "Create a dynamic block capturing a column view table."
1175   (interactive)
1176   (let ((defaults '(:name "columnview" :hlines 1))
1177         (id (org-ido-completing-read
1178              "Capture columns (local, global, entry with :ID: property) [local]: "
1179              (append '(("global") ("local"))
1180                      (mapcar 'list (org-property-values "ID"))))))
1181     (if (equal id "") (setq id 'local))
1182     (if (equal id "global") (setq id 'global))
1183     (setq defaults (append defaults (list :id id)))
1184     (org-create-dblock defaults)
1185     (org-update-dblock)))
1186
1187 ;;; Column view in the agenda
1188
1189 (defvar org-agenda-view-columns-initially nil
1190   "When set, switch to columns view immediately after creating the agenda.")
1191
1192 (defvar org-agenda-columns-show-summaries) ; defined in org-agenda.el
1193 (defvar org-agenda-columns-compute-summary-properties); defined in org-agenda.el
1194 (defvar org-agenda-columns-add-appointments-to-effort-sum); as well
1195
1196 (defun org-agenda-columns ()
1197   "Turn on or update column view in the agenda."
1198   (interactive)
1199   (org-verify-version 'columns)
1200   (org-columns-remove-overlays)
1201   (move-marker org-columns-begin-marker (point))
1202   (let (fmt cache maxwidths m p a d)
1203     (cond
1204      ((and (boundp 'org-agenda-overriding-columns-format)
1205            org-agenda-overriding-columns-format)
1206       (setq fmt org-agenda-overriding-columns-format)
1207       (org-set-local 'org-agenda-overriding-columns-format fmt))
1208      ((setq m (get-text-property (point-at-bol) 'org-hd-marker))
1209       (setq fmt (or (org-entry-get m "COLUMNS" t)
1210                     (with-current-buffer (marker-buffer m)
1211                       org-columns-default-format))))
1212      ((and (boundp 'org-columns-current-fmt)
1213            (local-variable-p 'org-columns-current-fmt)
1214            org-columns-current-fmt)
1215       (setq fmt org-columns-current-fmt))
1216      ((setq m (next-single-property-change (point-min) 'org-hd-marker))
1217       (setq m (get-text-property m 'org-hd-marker))
1218       (setq fmt (or (org-entry-get m "COLUMNS" t)
1219                     (with-current-buffer (marker-buffer m)
1220                       org-columns-default-format)))))
1221     (setq fmt (or fmt org-columns-default-format))
1222     (org-set-local 'org-columns-current-fmt fmt)
1223     (org-columns-compile-format fmt)
1224     (when org-agenda-columns-compute-summary-properties
1225       (org-agenda-colview-compute org-columns-current-fmt-compiled))
1226     (save-excursion
1227       ;; Get and cache the properties
1228       (goto-char (point-min))
1229       (while (not (eobp))
1230         (when (setq m (or (get-text-property (point) 'org-hd-marker)
1231                           (get-text-property (point) 'org-marker)))
1232           (setq p (org-entry-properties m))
1233
1234           (when (or (not (setq a (assoc org-effort-property p)))
1235                          (not (string-match "\\S-" (or (cdr a) ""))))
1236             ;; OK, the property is not defined.  Use appointment duration?
1237             (when (and org-agenda-columns-add-appointments-to-effort-sum
1238                        (setq d (get-text-property (point) 'duration)))
1239               (setq d (org-minutes-to-hh:mm-string d))
1240               (put-text-property 0 (length d) 'face 'org-warning d)
1241               (push (cons org-effort-property d) p)))
1242           (push (cons (org-current-line) p) cache))
1243         (beginning-of-line 2))
1244       (when cache
1245         (setq maxwidths (org-columns-get-autowidth-alist fmt cache))
1246         (org-set-local 'org-columns-current-maxwidths maxwidths)
1247         (org-columns-display-here-title)
1248         (when (org-set-local 'org-columns-flyspell-was-active
1249                              (org-bound-and-true-p flyspell-mode))
1250           (flyspell-mode 0))
1251         (mapc (lambda (x)
1252                 (goto-line (car x))
1253                 (org-columns-display-here (cdr x)))
1254               cache)
1255         (when org-agenda-columns-show-summaries
1256           (org-agenda-colview-summarize cache))))))
1257
1258 (defun org-agenda-colview-summarize (cache)
1259   "Summarize the summarizable columns in column view in the agenda.
1260 This will add overlays to the date lines, to show the summary for each day."
1261   (let* ((fmt (mapcar (lambda (x)
1262                         (list (car x) (if (equal (car x) "CLOCKSUM")
1263                                           'add_times (nth 4 x))))
1264                       org-columns-current-fmt-compiled))
1265          line c c1 stype props lsum entries prop v)
1266     (catch 'exit
1267       (when (delq nil (mapcar 'cadr fmt))
1268         ;; OK, at least one summation column, it makes sense to try this
1269         (goto-char (point-max))
1270         (while t
1271           (when (or (get-text-property (point) 'org-date-line)
1272                     (eq (get-text-property (point) 'face)
1273                         'org-agenda-structure))
1274             ;; OK, this is a date line that should be used
1275             (setq line (org-current-line))
1276             (setq entries nil c cache cache nil)
1277             (while (setq c1 (pop c))
1278               (if (> (car c1) line)
1279                   (push c1 entries)
1280                 (push c1 cache)))
1281             ;; now ENTRIES are the ones we want to use, CACHE is the rest
1282             ;; Compute the summaries for the properties we want,
1283             ;; set nil properties for the rest.
1284             (when (setq entries (mapcar 'cdr entries))
1285               (setq props
1286                     (mapcar
1287                      (lambda (f)
1288                        (setq prop (car f) stype (nth 1 f))
1289                        (cond
1290                         ((equal prop "ITEM")
1291                          (cons prop (buffer-substring (point-at-bol)
1292                                                       (point-at-eol))))
1293                         ((not stype) (cons prop ""))
1294                         (t
1295                          ;; do the summary
1296                          (setq lsum 0)
1297                          (mapc (lambda (x)
1298                                  (setq v (cdr (assoc prop x)))
1299                                  (if v (setq lsum (+ lsum
1300                                                      (org-column-string-to-number
1301                                                       v stype)))))
1302                                entries)
1303                          (setq lsum (org-columns-number-to-string lsum stype))
1304                          (put-text-property
1305                           0 (length lsum) 'face 'bold lsum)
1306                          (cons prop lsum))))
1307                      fmt))
1308               (org-columns-display-here props 'dateline)
1309               (org-set-local 'org-agenda-columns-active t)))
1310           (if (bobp) (throw 'exit t))
1311           (beginning-of-line 0))))))
1312
1313 (defun org-agenda-colview-compute (fmt)
1314   "Compute the relevant columns in the contributing source buffers."
1315   (let ((files org-agenda-contributing-files)
1316         (org-columns-begin-marker (make-marker))
1317         (org-columns-top-level-marker (make-marker))
1318         f fm a b)
1319     (while (setq f (pop files))
1320       (setq b (find-buffer-visiting f))
1321       (with-current-buffer (or (buffer-base-buffer b) b)
1322         (save-excursion
1323           (save-restriction
1324             (widen)
1325             (org-unmodified
1326              (remove-text-properties (point-min) (point-max)
1327                                      '(org-summaries t)))
1328             (goto-char (point-min))
1329             (org-columns-get-format-and-top-level)
1330             (while (setq fm (pop fmt))
1331               (if (equal (car fm) "CLOCKSUM")
1332                   (org-clock-sum)
1333                 (when (and (nth 4 fm)
1334                            (setq a (assoc (car fm)
1335                                           org-columns-current-fmt-compiled))
1336                            (equal (nth 4 a) (nth 4 fm)))
1337                   (org-columns-compute (car fm)))))))))))
1338
1339 (provide 'org-colview)
1340
1341 ;; arch-tag: 61f5128d-747c-4983-9479-e3871fa3d73c
1342
1343 ;;; org-colview.el ends here