-;;; avoid.el -- make mouse pointer stay out of the way of editing.
+;;; avoid.el --- make mouse pointer stay out of the way of editing
;;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; 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:
-;;;
-;;; For those who are annoyed by the mouse pointer obscuring text,
-;;; this mode moves the mouse pointer - either just a little out of
-;;; the way, or all the way to the corner of the frame.
-;;; To use, load or evaluate this file and type M-x mouse-avoidance-mode .
-;;; To set up permanently, put the following in your .emacs:
-;;;
-;;; (if window-system (mouse-avoidance-mode 'animate))
-;;;
-;;; The 'animate can be 'jump or 'banish or 'exile or 'protean if you prefer.
-;;; See the documentation for function `mouse-avoidance-mode' for
-;;; details of the different modes.
-;;;
-;;; For added silliness, make the animatee animate...
-;;; put something similar to the following into your .emacs:
-;;;
-;;; (if window-system
-;;; (mouse-avoidance-set-pointer-shape
-;;; (eval (nth (random 4)
-;;; '(x-pointer-man x-pointer-spider
-;;; x-pointer-gobbler x-pointer-gumby)))))
-;;;
-;;; For completely random pointer shape, replace the setq above with:
-;;; (setq x-pointer-shape (mouse-avoidance-random-shape))
-;;;
-;;; Bugs / Warnings / To-Do:
-;;;
-;;; - Using this code does slow emacs down. "banish" mode shouldn't
-;;; be too bad, and on my workstation even "animate" is reasonable.
-;;;
-;;; - It ought to find out where any overlapping frames are and avoid them,
-;;; rather than always raising the frame.
-
-;;; Credits:
-;;; This code was helped by all those who contributed suggestions,
-;;; fixes, and additions
-;;; Joe Harrington (and his advisor), for the original inspiration.
-;;; Ken Manheimer, for dreaming up the Protean mode.
-;;; Richard Stallman, for the awful cat-and-mouse pun, among other things.
-;;; Mike Williams, Denis Howe, Bill Benedetto, Chris Moore, Don Morris,
-;;; Simon Marshall, and M.S. Ashton, for their feedback.
-;;;
+
+;; For those who are annoyed by the mouse pointer obscuring text,
+;; this mode moves the mouse pointer - either just a little out of
+;; the way, or all the way to the corner of the frame.
+;; To use, load or evaluate this file and type M-x mouse-avoidance-mode .
+;; To set up permanently, put the following in your .emacs:
+;;
+;; (if window-system (mouse-avoidance-mode 'animate))
+;;
+;; The 'animate can be 'jump or 'banish or 'exile or 'protean if you prefer.
+;; See the documentation for function `mouse-avoidance-mode' for
+;; details of the different modes.
+;;
+;; For added silliness, make the animatee animate...
+;; put something similar to the following into your .emacs:
+;;
+;; (if window-system
+;; (mouse-avoidance-set-pointer-shape
+;; (eval (nth (random 4)
+;; '(x-pointer-man x-pointer-spider
+;; x-pointer-gobbler x-pointer-gumby)))))
+;;
+;; For completely random pointer shape, replace the setq above with:
+;; (setq x-pointer-shape (mouse-avoidance-random-shape))
+;;
+;; Bugs / Warnings / To-Do:
+;;
+;; - Using this code does slow emacs down. "banish" mode shouldn't
+;; be too bad, and on my workstation even "animate" is reasonable.
+;;
+;; - It ought to find out where any overlapping frames are and avoid them,
+;; rather than always raising the frame.
+
+;; Credits:
+;; This code was helped by all those who contributed suggestions,
+;; fixes, and additions
+;; Joe Harrington (and his advisor), for the original inspiration.
+;; Ken Manheimer, for dreaming up the Protean mode.
+;; Richard Stallman, for the awful cat-and-mouse pun, among other things.
+;; Mike Williams, Denis Howe, Bill Benedetto, Chris Moore, Don Morris,
+;; Simon Marshall, and M.S. Ashton, for their feedback.
+
;;; Code:
(provide 'avoid)
(defvar mouse-avoidance-state nil)
(defvar mouse-avoidance-pointer-shapes nil)
(defvar mouse-avoidance-n-pointer-shapes 0)
+(defvar mouse-avoidance-old-pointer-shape nil)
;;; Functions:
;; Args are the CURRENT location, the desired DELTA for
;; warp-conservation, the DISTANCE we like to move, the VARIABILITY
;; in distance allowed, and the MIN and MAX possible window positions.
- ;; Returns something as close to DELTA as possible withing the constraints.
+ ;; Returns something as close to DELTA as possible within the constraints.
(let ((L1 (max (- min cur) (+ (- dist) (- var))))
(R1 (+ (- dist) var ))
(L2 (+ dist (- var)))
(remove-hook 'post-command-idle-hook 'mouse-avoidance-banish-hook)
(remove-hook 'post-command-idle-hook 'mouse-avoidance-exile-hook)
(remove-hook 'post-command-idle-hook 'mouse-avoidance-fancy-hook)
+
+ ;; Restore pointer shape if necessary
+ (if (eq mouse-avoidance-mode 'proteus)
+ (mouse-avoidance-set-pointer-shape mouse-avoidance-old-pointer-shape))
+
+ ;; Do additional setup depending on version of mode requested
(cond ((eq mode 'none)
(setq mouse-avoidance-mode nil))
((or (eq mode 'jump)
(eq mode 'proteus))
(add-hook 'post-command-idle-hook 'mouse-avoidance-fancy-hook)
(setq mouse-avoidance-mode mode
- mouse-avoidance-state (cons 0 0)))
+ mouse-avoidance-state (cons 0 0)
+ mouse-avoidance-old-pointer-shape x-pointer-shape))
((eq mode 'exile)
(add-hook 'post-command-idle-hook 'mouse-avoidance-exile-hook)
(setq mouse-avoidance-mode mode