1 ;;; sup-mouse.el --- supdup mouse support for lisp machines
3 ;; Copyright (C) Free Software Foundation 1985, 1986
5 ;; Author: Wolfgang Rupprecht
7 ;; Created: 21 Nov 1986
10 ;; (from code originally written by John Robinson@bbn for the bitgraph)
12 ;; This file is part of GNU Emacs.
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 2, or (at your option)
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.
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., 59 Temple Place - Suite 330,
27 ;; Boston, MA 02111-1307, USA.
33 ;;; User customization option:
35 (defvar sup-mouse-fast-select-window nil
36 "*Non-nil for mouse hits to select new window, then execute; else just select.")
38 (defconst mouse-left 0)
39 (defconst mouse-center 1)
40 (defconst mouse-right 2)
42 (defconst mouse-2left 4)
43 (defconst mouse-2center 5)
44 (defconst mouse-2right 6)
46 (defconst mouse-3left 8)
47 (defconst mouse-3center 9)
48 (defconst mouse-3right 10)
52 (defun sup-mouse-report ()
53 "This function is called directly by the mouse, it parses and
54 executes the mouse commands.
56 L move point * |---- These apply for mouse click in a window.
58 3L copy word | If sup-mouse-fast-select-window is nil,
59 C move point and yank * | just selects that window.
65 on modeline on \"scroll bar\" in minibuffer
66 L scroll-up line to top execute-extended-command
67 C proportional goto-char line to middle mouse-help
68 R scroll-down line to bottom eval-expression"
72 ;; expect a string of <esc>:<buttons>;<x-pos>;<y-pos>c
73 ((buttons (sup-get-tty-num ?\;))
74 (x (sup-get-tty-num ?\;))
75 (y (sup-get-tty-num ?c))
76 (window (sup-pos-to-window x y))
77 (edges (window-edges window))
78 (old-window (selected-window))
79 (in-minibuf-p (eq y (1- (frame-height))))
80 (same-window-p (and (not in-minibuf-p) (eq window old-window)))
81 (in-modeline-p (eq y (1- (nth 3 edges))))
82 (in-scrollbar-p (>= x (1- (nth 2 edges)))))
83 (setq x (- x (nth 0 edges)))
84 (setq y (- y (nth 1 edges)))
86 ; (error "mouse-hit %d %d %d" buttons x y) ;;;; debug
89 (select-window window)
90 (cond ((= buttons mouse-left)
92 ((= buttons mouse-right)
94 ((= buttons mouse-center)
96 (- (point-max) (point-min)))
99 (what-cursor-position)))
100 (select-window old-window))
102 (select-window window)
104 (cond ((= buttons mouse-left)
106 ((= buttons mouse-right)
107 (+ y (- 2 (window-height))))
108 ((= buttons mouse-center)
109 (/ (+ 2 y y (- (window-height))) 2))
112 (select-window old-window))
114 (cond ((= buttons mouse-left)
115 (sup-move-point-to-x-y x y))
116 ((= buttons mouse-2left)
117 (sup-move-point-to-x-y x y)
119 ((= buttons mouse-3left)
120 (sup-move-point-to-x-y x y)
123 (point) (progn (forward-word 1) (point))))
124 (setq this-command 'yank)
126 ((= buttons mouse-right)
128 (sup-move-point-to-x-y x y)
129 (exchange-point-and-mark))
130 ((= buttons mouse-2right)
132 (sup-move-point-to-x-y x y)
133 (kill-region (mark) (point)))
134 ((= buttons mouse-3right)
136 (sup-move-point-to-x-y x y)
137 (copy-region-as-kill (mark) (point))
138 (setq this-command 'yank))
139 ((= buttons mouse-center)
140 (sup-move-point-to-x-y x y)
141 (setq this-command 'yank)
143 ((= buttons mouse-2center)
148 (cond ((= buttons mouse-right)
149 (call-interactively 'eval-expression))
150 ((= buttons mouse-left)
151 (call-interactively 'execute-extended-command))
152 ((= buttons mouse-center)
153 (describe-function 'sup-mouse-report)); silly self help
155 (t ;in another window
156 (select-window window)
157 (cond ((not sup-mouse-fast-select-window))
158 ((= buttons mouse-left)
159 (sup-move-point-to-x-y x y))
160 ((= buttons mouse-right)
162 (sup-move-point-to-x-y x y)
163 (exchange-point-and-mark))
164 ((= buttons mouse-center)
165 (sup-move-point-to-x-y x y)
166 (setq this-command 'yank)
172 (defun sup-get-tty-num (term-char)
173 "Read from terminal until TERM-CHAR is read, and return intervening number.
174 Upon non-numeric not matching TERM-CHAR signal an error."
178 (while (and (>= char ?0)
180 (setq num (+ (* num 10) (- char ?0)))
181 (setq char (read-char)))
182 (or (eq term-char char)
183 (error "Invalid data format in mouse command"))
186 (defun sup-move-point-to-x-y (x y)
187 "Position cursor in window coordinates.
188 X and Y are 0-based character positions in the window."
189 (move-to-window-line y)
193 (defun sup-pos-to-window (x y)
194 "Find window corresponding to frame coordinates.
195 X and Y are 0-based character positions on the frame."
196 (get-window-with-predicate (lambda (w)
197 (coordinates-in-window-p (cons x y) w))))
199 ;;; arch-tag: ec644ed4-cac4-43b8-b3db-cfe83e9098d7
200 ;;; sup-mouse.el ends here