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|
;;; sup-mouse.el --- supdup mouse support for lisp machines
;; Copyright (C) 1985-1986, 2001-2021 Free Software Foundation, Inc.
;; Author: Wolfgang Rupprecht
;; Maintainer: emacs-devel@gnu.org
;; Created: 21 Nov 1986
;; Keywords: hardware
;; Obsolete-since: 24.4
;; (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 3 of the License, 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. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
;;; User customization option:
(defcustom sup-mouse-fast-select-window nil
"Non-nil means mouse hits select new window, then execute.
Otherwise just select."
:type 'boolean
:group 'mouse)
(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 mode line 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-mode-line-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-mode-line-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."
(get-window-with-predicate (lambda (w)
(coordinates-in-window-p (cons x y) w))))
(provide 'sup-mouse)
;;; sup-mouse.el ends here
|
