scratch/edwin/mousecom.scm

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#| -*-Scheme-*-
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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2017, 2018, 2019, 2020 Massachusetts Institute of Technology
This file is part of MIT/GNU Scheme.
MIT/GNU Scheme 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 of the License, or (at
your option) any later version.
MIT/GNU Scheme 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 MIT/GNU Scheme; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
USA.
|#
;;;; Mouse Commands
(define-command mouse-select
"Select window the mouse is on."
()
(lambda ()
(select-window (button-event/window (current-button-event)))))
(define-command mouse-keep-one-window
"Select window mouse is on, then kill all other windows."
()
(lambda ()
((ref-command mouse-select))
((ref-command delete-other-windows))))
(define-command mouse-select-and-split
"Select window mouse is on, then split it vertically in half."
()
(lambda ()
((ref-command mouse-select))
((ref-command split-window-vertically) false)))
(define-command mouse-set-point
"Select window mouse is on, and move point to mouse position."
()
(lambda ()
(let ((button-event (current-button-event)))
(let ((window (button-event/window button-event)))
(select-window window)
(set-current-point!
(or (window-coordinates->mark window
(button-event/x button-event)
(button-event/y button-event))
(buffer-end (window-buffer window))))))))
(define-command mouse-set-mark
"Select window mouse is on, and set mark at mouse position.
Display cursor at that position for a second."
()
(lambda ()
(let ((button-event (current-button-event)))
(let ((window (button-event/window button-event)))
(select-window window)
(let ((mark
(or (window-coordinates->mark window
(button-event/x button-event)
(button-event/y button-event))
(buffer-end (window-buffer window)))))
(push-current-mark! mark)
(mark-flash mark))))))
(define-command mouse-show-event
"Show the mouse position in the minibuffer."
()
(lambda ()
(let ((button-event (current-button-event)))
(message "window: " (button-event/window button-event)
" x: " (button-event/x button-event)
" y: " (button-event/y button-event)))))
(define-command mouse-scroll-up
"Scroll up mouse-scroll-increment lines."
()
(lambda ()
(scroll-window (selected-window)
(ref-variable mouse-scroll-increment)
(lambda () unspecific))))
(define-command mouse-scroll-down
"Scroll down mouse-scroll-increment lines."
()
(lambda ()
(scroll-window (selected-window)
(- (ref-variable mouse-scroll-increment))
(lambda () unspecific))))
(define-variable mouse-scroll-increment
"Number of lines by which a mouse-scroll event moves."
5
exact-nonnegative-integer?)
(define-command mouse-ignore
"Don't do anything."
()
(lambda () unspecific))
(define button1-down (make-down-button 0))
(define button2-down (make-down-button 1))
(define button3-down (make-down-button 2))
(define button4-down (make-down-button 3))
(define button5-down (make-down-button 4))
(define button1-up (make-up-button 0))
(define button2-up (make-up-button 1))
(define button3-up (make-up-button 2))
(define button4-up (make-up-button 3))
(define button5-up (make-up-button 4))