--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/term/sup-mouse.el	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,207 @@
+;;; sup-mouse.el --- supdup mouse support for lisp machines
+
+;; Copyright (C) Free Software Foundation 1985, 1986
+
+;; Author: Wolfgang Rupprecht
+;; Maintainer: FSF
+;; Created: 21 Nov 1986
+;; Keywords: hardware
+
+;;     (from code originally written by John Robinson@bbn for the bitgraph)
+
+;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+;;; Code:
+
+;;;  User customization option:
+
+(defvar sup-mouse-fast-select-window nil
+  "*Non-nil for mouse hits to select new window, then execute; else just select.")
+
+(defconst mouse-left 0)
+(defconst mouse-center 1)
+(defconst mouse-right 2)
+
+(defconst mouse-2left 4)
+(defconst mouse-2center 5)
+(defconst mouse-2right 6)
+
+(defconst mouse-3left 8)
+(defconst mouse-3center 9)
+(defconst mouse-3right 10)
+
+;;;  Defuns:
+
+(defun sup-mouse-report ()
+  "This function is called directly by the mouse, it parses and
+executes the mouse commands.
+
+ L move point          *  |---- These apply for mouse click in a window.
+2L delete word            |
+3L copy word		  | If sup-mouse-fast-select-window is nil,
+ C move point and yank *  | just selects that window.
+2C yank pop		  |
+ R set mark            *  |
+2R delete region	  |
+3R copy region		  |
+
+on modeline		    on \"scroll bar\"	in minibuffer
+ L scroll-up		    line to top		execute-extended-command
+ C proportional goto-char   line to middle	mouse-help
+ R scroll-down		    line to bottom	eval-expression"
+  
+  (interactive)
+  (let*
+;; expect a string of <esc>:<buttons>;<x-pos>;<y-pos>c
+      ((buttons (sup-get-tty-num ?\;))
+       (x (sup-get-tty-num ?\;))
+       (y (sup-get-tty-num ?c))
+       (window (sup-pos-to-window x y))
+       (edges (window-edges window))
+       (old-window (selected-window))
+       (in-minibuf-p (eq y (1- (frame-height))))
+       (same-window-p (and (not in-minibuf-p) (eq window old-window)))
+       (in-modeline-p (eq y (1- (nth 3 edges))))
+       (in-scrollbar-p (>= x (1- (nth 2 edges)))))
+    (setq x (- x (nth 0 edges)))
+    (setq y (- y (nth 1 edges)))
+
+;    (error "mouse-hit %d %d %d" buttons x y) ;;;; debug
+
+    (cond (in-modeline-p
+	   (select-window window)
+	   (cond ((= buttons mouse-left)
+		  (scroll-up))
+		 ((= buttons mouse-right)
+		  (scroll-down))
+		 ((= buttons mouse-center)
+		  (goto-char (/ (* x
+				   (- (point-max) (point-min)))
+				(1- (window-width))))
+		  (beginning-of-line)
+		  (what-cursor-position)))
+	   (select-window old-window))
+	  (in-scrollbar-p
+	   (select-window window)
+	   (scroll-up
+	    (cond ((= buttons mouse-left)
+		   y)
+		  ((= buttons mouse-right)
+		   (+ y (- 2 (window-height))))
+		  ((= buttons mouse-center)
+		   (/ (+ 2 y y (- (window-height))) 2))
+		  (t
+		   0)))
+	   (select-window old-window))
+	  (same-window-p
+	   (cond ((= buttons mouse-left)
+		  (sup-move-point-to-x-y x y))
+		 ((= buttons mouse-2left)
+		  (sup-move-point-to-x-y x y)
+		  (kill-word 1))
+		 ((= buttons mouse-3left)
+		  (sup-move-point-to-x-y x y)
+		  (save-excursion
+		    (copy-region-as-kill
+		     (point) (progn (forward-word 1) (point))))
+		  (setq this-command 'yank)
+		  )
+		 ((= buttons mouse-right)
+		  (push-mark)
+		  (sup-move-point-to-x-y x y)
+		  (exchange-point-and-mark))
+		 ((= buttons mouse-2right)
+		  (push-mark)
+		  (sup-move-point-to-x-y x y)
+		  (kill-region (mark) (point)))
+		 ((= buttons mouse-3right)
+		  (push-mark)
+		  (sup-move-point-to-x-y x y)
+		  (copy-region-as-kill (mark) (point))
+		  (setq this-command 'yank))
+		 ((= buttons mouse-center)
+		  (sup-move-point-to-x-y x y)
+		  (setq this-command 'yank)
+		  (yank))
+		 ((= buttons mouse-2center)
+		  (yank-pop 1))
+		 )
+	   )
+	  (in-minibuf-p
+	   (cond ((= buttons mouse-right)
+		  (call-interactively 'eval-expression))
+		 ((= buttons mouse-left)
+		  (call-interactively 'execute-extended-command))
+		 ((= buttons mouse-center)
+		  (describe-function 'sup-mouse-report)); silly self help 
+		 ))
+	  (t				;in another window
+	   (select-window window)
+	   (cond ((not sup-mouse-fast-select-window))
+		 ((= buttons mouse-left)
+		  (sup-move-point-to-x-y x y))
+		 ((= buttons mouse-right)
+		  (push-mark)
+		  (sup-move-point-to-x-y x y)
+		  (exchange-point-and-mark))
+		 ((= buttons mouse-center)
+		  (sup-move-point-to-x-y x y)
+		  (setq this-command 'yank)
+		  (yank))
+		 ))
+	  )))
+
+
+(defun sup-get-tty-num (term-char)
+  "Read from terminal until TERM-CHAR is read, and return intervening number.
+Upon non-numeric not matching TERM-CHAR signal an error."
+  (let
+      ((num 0)
+       (char (read-char)))
+    (while (and (>= char ?0)
+		(<= char ?9))
+      (setq num (+ (* num 10) (- char ?0)))
+      (setq char (read-char)))
+    (or (eq term-char char)
+	(error "Invalid data format in mouse command"))
+    num))
+
+(defun sup-move-point-to-x-y (x y)
+  "Position cursor in window coordinates.
+X and Y are 0-based character positions in the window."
+  (move-to-window-line y)
+  (move-to-column x)
+  )
+
+(defun sup-pos-to-window (x y)
+  "Find window corresponding to frame coordinates.
+X and Y are 0-based character positions on the frame."
+  (let ((edges (window-edges))
+	(window nil))
+    (while (and (not (eq window (selected-window)))
+		(or (<  y (nth 1 edges))
+		    (>= y (nth 3 edges))
+		    (<  x (nth 0 edges))
+		    (>= x (nth 2 edges))))
+      (setq window (next-window window))
+      (setq edges (window-edges window))
+      )
+    (or window (selected-window))
+    )
+  )
+
+;;; sup-mouse.el ends here