[Emacs-diffs] Changes to emacs/lisp/talk.el [lexbind]

[Miles Bader]

Index: emacs/lisp/talk.el
diff -c /dev/null emacs/lisp/talk.el:1.6.2.1
*** /dev/null   Tue Oct 14 19:52:24 2003
--- emacs/lisp/talk.el  Tue Oct 14 19:51:25 2003
***************
*** 0 ****
--- 1,105 ----
+ ;;; talk.el --- allow several users to talk to each other through Emacs
+ 
+ ;; Copyright (C) 1995 Free Software Foundation, Inc.
+ 
+ ;; Maintainer: FSF
+ ;; Keywords: comm, frames
+ 
+ ;; This file is part of GNU Emacs.
+ 
+ ;; GNU Emacs 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 2, or (at your option)
+ ;; any later version.
+ 
+ ;; GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to the
+ ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ ;; Boston, MA 02111-1307, USA.
+ 
+ ;;; Commentary:
+ 
+ ;; This is a multi-user talk package that runs in Emacs.
+ ;; Use talk-connect to bring a new person into the conversation.
+ 
+ ;;; Code:
+ 
+ (defvar talk-display-alist nil
+   "Alist of displays on which Emacs talk is now running.
+ Each element has the form (DISPLAY FRAME BUFFER).")
+ 
+ ;;;###autoload
+ (defun talk-connect (display)
+   "Connect to display DISPLAY for the Emacs talk group."
+   (interactive "sTalk to display: ")
+   ;; Make sure we have an entry for the current display.
+   (let ((mydisp (cdr (assq 'display (frame-parameters (selected-frame))))))
+     (talk-add-display mydisp))
+   ;; Make sure we have an entry for the specified display.
+   (talk-add-display display)
+   ;; Add the new buffers to all talk frames.
+   (talk-update-buffers))
+ 
+ (defun talk-add-display (display)
+   (let* ((elt (assoc display talk-display-alist))
+        (name (concat "*talk-" display "*"))
+        buffer frame)
+     (if (not (and elt (frame-live-p (setq frame (nth 1 elt)))))
+       (setq frame (make-frame-on-display display (list (cons 'name name)))))
+     (if (not (and elt (buffer-name (get-buffer (setq buffer (nth 2 elt))))))
+       (setq buffer (get-buffer-create name)))
+     (setq talk-display-alist
+         (cons (list display frame buffer) (delq elt talk-display-alist)))))
+ 
+ (defun talk-disconnect ()
+   "Disconnect this display from the Emacs talk group."
+   (interactive)
+   (let* ((mydisp (cdr (assq 'display (frame-parameters (selected-frame)))))
+        (elt (assoc mydisp talk-display-alist)))
+     (delete-frame (nth 1 elt))
+     (kill-buffer (nth 2 elt))
+     (setq talk-display-alist (delq elt talk-display-alist))
+     (talk-update-buffers)))
+ 
+ (defun talk-update-buffers ()
+   "Update all the talk frames so that each shows all the talk buffers."
+   (let ((tail talk-display-alist))
+     (while tail
+       (let ((frame (nth 1 (car tail)))
+           (this-buffer (nth 2 (car tail)))
+           (buffers
+            (mapcar (function (lambda (elt) (nth 2 elt)))
+                    talk-display-alist)))
+       ;; Put this display's own talk buffer
+       ;; at the front of the list.
+       (setq buffers (cons this-buffer (delq this-buffer buffers)))
+       (talk-split-up-frame frame buffers))
+       (setq tail (cdr tail)))))
+ 
+ (defun talk-split-up-frame (frame buffers)
+   "Split FRAME into equal-sized windows displaying the buffers in BUFFERS.
+ Select the first of these windows, displaying the first of the buffers."
+   (let ((lines-per-buffer (/ (frame-height frame) (length buffers)))
+       (old-frame (selected-frame)))
+     (unwind-protect
+       (progn
+         (select-frame frame)
+         (select-window (frame-first-window frame))
+         (delete-other-windows)
+         (while (progn
+                  (switch-to-buffer (car buffers))
+                  (setq buffers (cdr buffers)))
+           (split-window-vertically lines-per-buffer)
+           (other-window 1))
+         (select-window (frame-first-window frame)))
+       (select-frame old-frame))))
+ 
+ (provide 'talk)
+ 
+ ;;; arch-tag: 7ab0ad88-1788-4886-a44c-ae685e6f8a1a
+ ;;; talk.el ends here