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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; File: sup-mouse.el ;;
;; Author: Wolfgang Rupprecht ;;
;; Created: Fri Nov 21 19:22:22 1986 ;;
;; Contents: supdup mouse support for lisp machines ;;
;; ;;
;; (from code originally written by John Robinson@bbn for the bitgraph) ;;
;; ;;
;; $Log$ ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; GNU Emacs code for lambda/supdup mouse
;; Copyright (C) Free Software Foundation 1985, 1986
;; 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 1, 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.
;;; 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- (screen-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 screen coordinates.
X and Y are 0-based character positions on the screen."
(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))
)
)
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