root/trunk/lisp/calendar/cal-x.el

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1 ;;; cal-x.el --- calendar windows in dedicated frames in X
2
3 ;; Copyright (C) 1994, 1995, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 ;;   Free Software Foundation, Inc.
5
6 ;; Author: Michael Kifer <kifer@cs.sunysb.edu>
7 ;;      Edward M. Reingold <reingold@cs.uiuc.edu>
8 ;; Maintainer: Glenn Morris <rgm@gnu.org>
9 ;; Keywords: calendar
10 ;; Human-Keywords: calendar, dedicated frames, X Window System
11
12 ;; This file is part of GNU Emacs.
13
14 ;; GNU Emacs is free software; you can redistribute it and/or modify
15 ;; it under the terms of the GNU General Public License as published by
16 ;; the Free Software Foundation; either version 3, or (at your option)
17 ;; any later version.
18
19 ;; GNU Emacs is distributed in the hope that it will be useful,
20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
22 ;; GNU General Public License for more details.
23
24 ;; You should have received a copy of the GNU General Public License
25 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
26 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
27 ;; Boston, MA 02110-1301, USA.
28
29 ;;; Commentary:
30
31 ;; This collection of functions implements dedicated frames in X for
32 ;; calendar.el.
33
34 ;;; Code:
35
36 (require 'calendar)
37
38 (defvar calendar-frame nil "Frame in which to display the calendar.")
39
40 (defvar diary-frame nil "Frame in which to display the diary.")
41
42 ;; This should not specify the font.  That's up to the user.
43 ;; Certainly it should not specify auto-lower and auto-raise
44 ;; since most users won't like that.
45 (defvar diary-frame-parameters
46   '((name . "Diary") (title . "Diary") (height . 10) (width . 80)
47     (unsplittable . t) (minibuffer . nil))
48   "Parameters of the diary frame, if the diary is in its own frame.
49 Location and color should be set in .Xdefaults.")
50
51 (defvar calendar-frame-parameters
52   '((name . "Calendar") (title . "Calendar") (minibuffer . nil)
53     (height . 10) (width . 80) (unsplittable . t) (vertical-scroll-bars . nil))
54   "Parameters of the calendar frame, if the calendar is in a separate frame.
55 Location and color should be set in .Xdefaults.")
56
57 (defvar calendar-and-diary-frame-parameters
58   '((name . "Calendar") (title . "Calendar") (height . 28) (width . 80)
59     (minibuffer . nil))
60   "Parameters of the frame that displays both the calendar and the diary.
61 Location and color should be set in .Xdefaults.")
62
63 (defvar calendar-after-frame-setup-hooks nil
64   "Hooks to be run just after setting up a calendar frame.
65 Can be used to change frame parameters, such as font, color, location, etc.")
66
67 (defun calendar-one-frame-setup (&optional arg)
68   "Start calendar and display it in a dedicated frame together with the diary.
69 This function requires a display capable of multiple frames, else
70 `calendar-basic-setup' is used instead."
71   (if (not (display-multi-frame-p))
72       (calendar-basic-setup arg)
73     (if (frame-live-p calendar-frame) (delete-frame calendar-frame))
74     (if (frame-live-p diary-frame) (delete-frame diary-frame))
75     (let ((special-display-buffer-names nil)
76           (view-diary-entries-initially t))
77       (save-window-excursion
78         (save-excursion
79           (setq calendar-frame
80                 (make-frame calendar-and-diary-frame-parameters))
81           (run-hooks 'calendar-after-frame-setup-hooks)
82           (select-frame calendar-frame)
83           (if (eq 'icon (cdr (assoc 'visibility
84                                      (frame-parameters calendar-frame))))
85               (iconify-or-deiconify-frame))
86           (calendar-basic-setup arg)
87           (set-window-dedicated-p (selected-window) t)
88           (set-window-dedicated-p
89            (display-buffer
90             (if (not (memq 'fancy-diary-display diary-display-hook))
91                 (get-file-buffer diary-file)
92               (if (not (bufferp (get-buffer fancy-diary-buffer)))
93                   (make-fancy-diary-buffer))
94               fancy-diary-buffer))
95            t))))))
96
97 (defun calendar-only-one-frame-setup (&optional arg)
98   "Start calendar and display it in a dedicated frame.
99 This function requires a display capable of multiple frames, else
100 `calendar-basic-setup' is used instead."
101   (if (not (display-multi-frame-p))
102       (calendar-basic-setup arg)
103     (if (frame-live-p calendar-frame) (delete-frame calendar-frame))
104     (let ((special-display-buffer-names nil)
105           (view-diary-entries-initially nil))
106       (save-window-excursion
107         (save-excursion
108           (setq calendar-frame
109                 (make-frame calendar-frame-parameters))
110           (run-hooks 'calendar-after-frame-setup-hooks)
111           (select-frame calendar-frame)
112           (if (eq 'icon (cdr (assoc 'visibility
113                                      (frame-parameters calendar-frame))))
114               (iconify-or-deiconify-frame))
115           (calendar-basic-setup arg)
116           (set-window-dedicated-p (selected-window) t))))))
117
118 (defun calendar-two-frame-setup (&optional arg)
119   "Start calendar and diary in separate, dedicated frames.
120 This function requires a display capable of multiple frames, else
121 `calendar-basic-setup' is used instead."
122   (if (not (display-multi-frame-p))
123       (calendar-basic-setup arg)
124     (if (frame-live-p calendar-frame) (delete-frame calendar-frame))
125     (if (frame-live-p diary-frame) (delete-frame diary-frame))
126     (let ((pop-up-windows nil)
127           (view-diary-entries-initially nil)
128           (special-display-buffer-names nil))
129       (save-window-excursion
130         (save-excursion (calendar-basic-setup arg))
131         (setq calendar-frame (make-frame calendar-frame-parameters))
132         (run-hooks 'calendar-after-frame-setup-hooks)
133         (select-frame calendar-frame)
134         (if (eq 'icon (cdr (assoc 'visibility
135                                   (frame-parameters calendar-frame))))
136             (iconify-or-deiconify-frame))
137         (display-buffer calendar-buffer)
138         (set-window-dedicated-p (selected-window) t)
139         (setq diary-frame (make-frame diary-frame-parameters))
140         (run-hooks 'calendar-after-frame-setup-hooks)
141         (select-frame diary-frame)
142         (if (eq 'icon (cdr (assoc 'visibility
143                                   (frame-parameters diary-frame))))
144             (iconify-or-deiconify-frame))
145         (save-excursion (diary))
146         (set-window-dedicated-p
147          (display-buffer
148           (if (not (memq 'fancy-diary-display diary-display-hook))
149               (get-file-buffer diary-file)
150             (if (not (bufferp (get-buffer fancy-diary-buffer)))
151                 (make-fancy-diary-buffer))
152             fancy-diary-buffer))
153          t)))))
154
155 ;; Formerly (get-file-buffer diary-file) was added to the list here,
156 ;; but that isn't clean, and the value could even be nil.
157 (setq special-display-buffer-names
158       (append special-display-buffer-names
159               (list "*Yahrzeits*" lunar-phases-buffer holiday-buffer
160                     fancy-diary-buffer
161                     other-calendars-buffer calendar-buffer)))
162
163 (run-hooks 'cal-x-load-hook)
164
165 (provide 'cal-x)
166
167 ;;; arch-tag: c6dbddca-ae84-442d-87fc-244b76e38e17
168 ;;; cal-x.el ends here
169
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