I discovered the < key in the agenda yesterday (by accident!), which filters the Agenda down to entries having the same category. However, I use both *categories* and *projects*. For example: * Work :CATEGORY: Work :OVERLAY: (face (:background "#fdfdeb")) ** PROJECT Foo :CATEGORY: Foo I use :CATEGORY: for my project here so it shows up in the leftmost column of my agenda. I don't want every project displaying as just "Work". I use the :OVERLAY: so that all Work items have the same background color, which is a better way of seeing at a glance which *category* every item falls into. What this means is that although I can use < to filter by *project*, I can't filter down to the "Work" *category*. So that's what the code below does. I bind it to >, since I wasn't using what that binding does. Also, I found a bug: passing a prefix argument to < doesn't have any effect. The code doesn't use that argument in any meaningful way. John (define-key org-agenda-mode-map ">" 'org-agenda-filter-by-top-category) (defun org-find-top-category (&optional pos) (save-excursion (with-current-buffer (if pos (marker-buffer pos) (current-buffer)) (if pos (goto-char pos)) ;; Skip up to the topmost parent (while (ignore-errors (outline-up-heading 1) t)) (ignore-errors (nth 4 (org-heading-components)))))) (defvar org-agenda-filtered-by-top-category nil) (defun org-agenda-filter-by-top-category (strip) "Keep only those lines in the agenda buffer that have a specific category. The category is that of the current line." (interactive "P") (if org-agenda-filtered-by-top-category (progn (setq org-agenda-filtered-by-top-category nil) (org-agenda-filter-show-all-cat)) (let ((cat (org-find-top-category (org-get-at-bol 'org-hd-marker)))) (if cat (org-agenda-filter-top-category-apply cat) (error "No top-level category at point"))))) (defun org-agenda-filter-top-category-apply (category) "Set FILTER as the new agenda filter and apply it." (org-agenda-set-mode-name) (save-excursion (goto-char (point-min)) (while (not (eobp)) (let* ((pos (org-get-at-bol 'org-hd-marker)) (topcat (and pos (org-find-top-category pos)))) (if (and topcat (not (string= category topcat))) (org-agenda-filter-hide-line 'category))) (beginning-of-line 2))) (if (get-char-property (point) 'invisible) (org-agenda-previous-line)) (setq org-agenda-filtered-by-top-category t))
Hi John, John Wiegley <jwiegley@gmail.com> writes: > I discovered the < key in the agenda yesterday (by accident!), which filters > the Agenda down to entries having the same category. > > However, I use both *categories* and *projects*. For example: > > * Work > :CATEGORY: Work > :OVERLAY: (face (:background "#fdfdeb")) > ** PROJECT Foo > :CATEGORY: Foo > > I use :CATEGORY: for my project here so it shows up in the leftmost column of > my agenda. I don't want every project displaying as just "Work". I use the > :OVERLAY: so that all Work items have the same background color, which is a > better way of seeing at a glance which *category* every item falls into. > > What this means is that although I can use < to filter by *project*, I can't > filter down to the "Work" *category*. So that's what the code below does. I > bind it to >, since I wasn't using what that binding does. I tested the code and it looks useful. Could you make a patch against current master? > Also, I found a bug: passing a prefix argument to < doesn't have any effect. > The code doesn't use that argument in any meaningful way. This is now fixed. You can use `C-u <' to filter out the category of the current line. Thanks for spotting this! -- Bastien