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calfw-cal.el
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calfw-cal.el
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;;; calfw-cal.el --- calendar view for emacs diary
;; Copyright (C) 2011 SAKURAI Masashi
;; Author: SAKURAI Masashi <m.sakurai at kiwanami.net>
;; Keywords: calendar
;; 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 of the License, 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, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Display diary items in the calfw buffer.
;; (require 'calfw-cal)
;;
;; M-x cfw:open-diary-calendar
;; Key binding
;; i : insert an entry on the date
;; RET or Click : jump to the entry
;; q : kill-buffer
;; Thanks for furieux's initial code.
;;; Code:
(require 'calfw)
(require 'calendar)
(defvar cfw:cal-diary-regex
(let ((time "[[:digit:]]\\{2\\}:[[:digit:]]\\{2\\}")
(blanks "[[:blank:]]*"))
(concat "\\(" time "\\)?"
"\\(?:" blanks "-" blanks "\\(" time "\\)\\)?"
blanks "\\(.*\\)"))
"Regex extracting start/end time and title from a diary string")
(defun cfw:cal-entry-to-event (date string)
"[internal] Add text properties to string, allowing calfw to act on it."
(let* ((lines (split-string
(replace-regexp-in-string
"[\t ]+" " " (cfw:trim string))
"\n"))
(first (car lines))
(desc (mapconcat 'identity (cdr lines) "\n"))
(title (progn
(string-match cfw:cal-diary-regex first)
(match-string 3 first)))
(start (match-string 1 first))
(end (match-string 2 first))
(properties (list 'mouse-face 'highlight
'help-echo string
'cfw-marker (copy-marker (point-at-bol)))))
(make-cfw:event :title (apply 'propertize title properties)
:start-date date
:start-time (when start
(cfw:parse-str-time start))
:end-time (when end
(cfw:parse-str-time end))
:description (apply 'propertize desc properties))))
(defun cfw:cal-onclick ()
"Jump to the clicked diary item."
(interactive)
(let ((marker (get-text-property (point) 'cfw-marker)))
(when (and marker (marker-buffer marker))
(switch-to-buffer (marker-buffer marker))
(goto-char (marker-position marker)))))
(defvar cfw:cal-text-keymap
(let ((map (make-sparse-keymap)))
(define-key map [mouse-1] 'cfw:cal-onclick)
(define-key map (kbd "<return>") 'cfw:cal-onclick)
map)
"key map on the calendar item text.")
(defun cfw:cal-schedule-period-to-calendar (begin end)
"[internal] Return calfw calendar items between BEGIN and END
from the diary schedule data."
(let ((all (diary-list-entries
begin
(1+ (cfw:days-diff begin end)) t))
non-periods
periods)
(loop for i in all
for date = (car i)
for title = (nth 1 i)
for date-spec = (nth 2 i)
for dmarker = (nth 3 i)
for pspec = (cons date-spec title)
do
(if (string-match "%%(diary-block" date-spec)
(unless (member pspec periods)
(push pspec periods))
(push i non-periods)))
(append
(loop
for (date string . rest) in non-periods
collect (cfw:cal-entry-to-event date string))
(list (cons 'periods
(map 'list (function (lambda (period)
(let ((spec (read (substring (car period) 2))))
(cond
((eq calendar-date-style 'american)
(list
(list (nth 1 spec)
(nth 2 spec)
(nth 3 spec))
(list (nth 4 spec)
(nth 5 spec)
(nth 6 spec))
(cdr period)))
((eq calendar-date-style 'european)
(list
(list (nth 2 spec)
(nth 1 spec)
(nth 3 spec))
(list (nth 5 spec)
(nth 4 spec)
(nth 6 spec))
(cdr period)))
((eq calendar-date-style 'iso)
(list
(list (nth 2 spec)
(nth 3 spec)
(nth 1 spec))
(list (nth 5 spec)
(nth 6 spec)
(nth 4 spec))
(cdr period)))))))
periods))))))
(defvar cfw:cal-schedule-map
(cfw:define-keymap
'(
("q" . kill-buffer)
("i" . cfw:cal-from-calendar)
))
"Key map for the calendar buffer.")
(defun cfw:cal-create-source (&optional color)
"Create diary calendar source."
(make-cfw:source
:name "calendar diary"
:color (or color "SaddleBrown")
:data 'cfw:cal-schedule-period-to-calendar))
(defun cfw:open-diary-calendar ()
"Open the diary schedule calendar in the new buffer."
(interactive)
(save-excursion
(let* ((source1 (cfw:cal-create-source))
(cp (cfw:create-calendar-component-buffer
:view 'month
:custom-map cfw:cal-schedule-map
:contents-sources (list source1))))
(switch-to-buffer (cfw:cp-get-buffer cp)))))
(defun cfw:cal-from-calendar ()
"Insert a new item. This command should be executed on the calfw calendar."
(interactive)
(let* ((mdy (cfw:cursor-to-nearest-date))
(m (calendar-extract-month mdy))
(d (calendar-extract-day mdy))
(y (calendar-extract-year mdy)))
(diary-make-entry (calendar-date-string (cfw:date m d y) t t))
))
;; (progn (eval-current-buffer) (cfw:open-diary-calendar))
(provide 'calfw-cal)
;;; calfw-cal.el ends here