+++ /dev/null
-;;; bg-mouse.el --- GNU Emacs code for BBN Bitgraph mouse
-
-;; Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
-
-;; Author: John Robinson <jr@bbn-unix.arpa>
-;; Stephen Gildea <gildea@bbn.com>
-;; Maintainer: FSF
-;; Keywords: hardware
-
-;; 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, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
-
-;;; Commentary:
-
-;;; Code:
-
-;;; Original version by John Robinson (jr@bbn-unix.arpa, bbncca!jr), Oct 1985
-;;; Modularized and enhanced by gildea@bbn.com Nov 1987
-;;; Time stamp <89/03/21 14:27:08 gildea>
-
-;;; User customization option:
-
-(defvar bg-mouse-fast-select-window nil
- "*Non-nil for mouse hits to select new window, then execute; else just select.")
-
-;;; These numbers are summed to make the index into the mouse-map.
-;;; The low three bits correspond to what the mouse actually sends.
-(defconst bg-button-r 1)
-(defconst bg-button-m 2)
-(defconst bg-button-c 2)
-(defconst bg-button-l 4)
-(defconst bg-in-modeline 8)
-(defconst bg-in-scrollbar 16)
-(defconst bg-in-minibuf 24)
-
-;;; semicolon screws up indenting, so use this instead
-(defconst semicolon ?\;)
-
-(eval-when-compile
- (defvar bg-mouse-x) (defvar bg-mouse-y) (defvar bg-cursor-window))
-
-;;; Defuns:
-
-(defun bg-mouse-report (prefix-arg)
- "Read, parse, and execute a BBN BitGraph mouse click.
-
-L-- move point | These apply for mouse click in a window.
---R set mark | If bg-mouse-fast-select-window is nil,
-L-R kill region | these commands on a nonselected window
--C- move point and yank | just select that window.
-LC- yank-pop |
--CR or LCR undo | \"Scroll bar\" is right-hand window column.
-
-on modeline: on \"scroll bar\": in minibuffer:
-L-- scroll-up line to top execute-extended-command
---R scroll-down line to bottom eval-expression
--C- proportional goto-char line to middle suspend-emacs
-
-To reinitialize the mouse if the terminal is reset, type ESC : RET"
- (interactive "P")
- (bg-get-tty-num semicolon)
- (let*
- ((screen-mouse-x (min (1- (frame-width)) ;don't hit column 86!
- (/ (bg-get-tty-num semicolon) 9)))
- (screen-mouse-y (- (1- (frame-height)) ;assume default font size.
- (/ (bg-get-tty-num semicolon) 16)))
- (bg-mouse-buttons (% (bg-get-tty-num ?c) 8))
- (bg-mouse-window (bg-window-from-x-y screen-mouse-x screen-mouse-y))
- (bg-cursor-window (selected-window))
- (edges (window-edges bg-mouse-window))
- (minibuf-p (= screen-mouse-y (1- (frame-height))))
- (in-modeline-p (and (not minibuf-p)
- (= screen-mouse-y (1- (nth 3 edges)))))
- (in-scrollbar-p (and (not minibuf-p) (not in-modeline-p)
- (>= screen-mouse-x (1- (nth 2 edges)))))
- (same-window-p (eq bg-mouse-window bg-cursor-window))
- (in-minibuf-p (and minibuf-p
- (not bg-mouse-window))) ;minibuf must be inactive
- (bg-mode-bits (+ (if in-minibuf-p bg-in-minibuf 0)
- (if in-modeline-p bg-in-modeline 0)
- (if in-scrollbar-p bg-in-scrollbar 0)))
- (bg-command
- (lookup-key mouse-map
- (char-to-string (+ bg-mode-bits bg-mouse-buttons))))
- (bg-mouse-x (- screen-mouse-x (nth 0 edges)))
- (bg-mouse-y (- screen-mouse-y (nth 1 edges))))
- (cond ((or in-modeline-p in-scrollbar-p)
- (select-window bg-mouse-window)
- (bg-command-execute bg-command)
- (select-window bg-cursor-window))
- ((or same-window-p in-minibuf-p)
- (bg-command-execute bg-command))
- (t ;in another window
- (select-window bg-mouse-window)
- (if bg-mouse-fast-select-window
- (bg-command-execute bg-command)))
- )))
-
-\f
-;;; Library of commands:
-
-(defun bg-set-point ()
- "Move point to location of BitGraph mouse."
- (interactive)
- (bg-move-point-to-x-y bg-mouse-x bg-mouse-y)
- (setq this-command 'next-line) ;make subsequent line moves work
- (setq temporary-goal-column bg-mouse-x))
-
-(defun bg-set-mark ()
- "Set mark at location of BitGraph mouse."
- (interactive)
- (push-mark)
- (bg-move-point-to-x-y bg-mouse-x bg-mouse-y)
- (exchange-point-and-mark))
-
-(defun bg-yank ()
- "Move point to location of BitGraph mouse and yank."
- (interactive "*")
- (bg-move-point-to-x-y bg-mouse-x bg-mouse-y)
- (setq this-command 'yank)
- (yank))
-
-(defun yank-pop-1 ()
- (interactive "*")
- (yank-pop 1))
-
-(defun bg-yank-or-pop ()
- "Move point to location of BitGraph mouse and yank. If last command
-was a yank, do a yank-pop."
- (interactive "*")
- (if (eq last-command 'yank)
- (yank-pop 1)
- (bg-yank)))
-
-;;; In 18.51, Emacs Lisp doesn't provide most-positive-fixnum
-(defconst bg-most-positive-fixnum 8388607)
-
-(defun bg-move-by-percentage ()
- "Go to location in buffer that is the same percentage of the way
-through the buffer as the BitGraph mouse's X position in the window."
- (interactive)
- ;; check carefully for overflow in intermediate calculations
- (goto-char
- (cond ((zerop bg-mouse-x)
- 0)
- ((< (buffer-size) (/ bg-most-positive-fixnum bg-mouse-x))
- ;; no danger of overflow: compute it exactly
- (/ (* bg-mouse-x (buffer-size))
- (1- (window-width))))
- (t
- ;; overflow possible: approximate
- (* (/ (buffer-size) (1- (window-width)))
- bg-mouse-x))))
- (beginning-of-line)
- (what-cursor-position))
-
-(defun bg-mouse-line-to-top ()
- "Scroll the line pointed to by the BitGraph mouse to the top of the window."
- (interactive)
- (scroll-up bg-mouse-y))
-
-(defun bg-mouse-line-to-center ()
- "Scroll the line pointed to by the BitGraph mouse to the center
-of the window"
- (interactive)
- (scroll-up (/ (+ 2 bg-mouse-y bg-mouse-y (- (window-height))) 2)))
-
-(defun bg-mouse-line-to-bottom ()
- "Scroll the line pointed to by the mouse to the bottom of the window."
- (interactive)
- (scroll-up (+ bg-mouse-y (- 2 (window-height)))))
-
-(defun bg-kill-region ()
- (interactive "*")
- (kill-region (region-beginning) (region-end)))
-
-(defun bg-insert-moused-sexp ()
- "Insert a copy of the word (actually sexp) that the mouse is pointing at.
-Sexp is inserted into the buffer at point (where the text cursor is)."
- (interactive)
- (let ((moused-text
- (save-excursion
- (bg-move-point-to-x-y bg-mouse-x bg-mouse-y)
- (if (looking-at "\\s)")
- (forward-char 1)
- (forward-sexp 1))
- (buffer-substring (save-excursion (backward-sexp 1) (point))
- (point)))))
- (select-window bg-cursor-window)
- (delete-horizontal-space)
- (cond
- ((bolp)
- (indent-according-to-mode))
- ;; In Lisp assume double-quote is closing; in Text assume opening.
- ;; Why? Because it does the right thing most often.
- ((save-excursion (forward-char -1)
- (and (not (looking-at "\\s\""))
- (looking-at "[`'\"\\]\\|\\s(")))
- nil)
- (t
- (insert " ")))
- (insert moused-text)
- (or (eolp)
- (looking-at "\\s.\\|\\s)")
- (and (looking-at "'") (looking-at "\\sw")) ;hack for text mode
- (save-excursion (insert " ")))))
-\f
-;;; Utility functions:
-
-(defun bg-get-tty-num (term-char)
- "Read from terminal until TERM-CHAR is read, and return intervening number.
-If non-numeric not matching TERM-CHAR, reprogram the mouse and signal an error."
- (let
- ((num 0)
- (char (- (read-char) 48)))
- (while (and (>= char 0)
- (<= char 9))
- (setq num (+ (* num 10) char))
- (setq char (- (read-char) 48)))
- (or (eq term-char (+ char 48))
- (progn
- (bg-program-mouse)
- (error
- "Invalid data format in bg-mouse command: mouse reinitialized.")))
- num))
-
-;;; Note that this fails in the minibuf because move-to-column doesn't
-;;; allow for the width of the prompt.
-(defun bg-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)
- ;; if not on a wrapped line, zero-column will be 0
- (let ((zero-column (current-column))
- (scroll-offset (window-hscroll)))
- ;; scrolling takes up column 0 to display the $
- (if (> scroll-offset 0)
- (setq scroll-offset (1- scroll-offset)))
- (move-to-column (+ zero-column scroll-offset x))
- ))
-
-;;; Returns the window that screen position (x, y) is in or nil if none,
-;;; meaning we are in the echo area with a non-active minibuffer.
-(defun bg-window-from-x-y (x y)
- "Find window corresponding to screen coordinates.
-X and Y are 0-based character positions on the screen."
- (get-window-with-predicate (lambda (w)
- (coordinates-in-window-p (cons x y) w))))
-
-(defun bg-command-execute (bg-command)
- (if (commandp bg-command)
- (command-execute bg-command)
- (ding)))
-
-(defun bg-program-mouse ()
- (send-string-to-terminal "\e:0;7;;;360;512;9;16;9;16c"))
-
-;;; Note that the doc string for mouse-map (as defined in subr.el)
-;;; says it is for the X-window mouse. This is wrong; that keymap
-;;; should be used for your mouse no matter what terminal you have.
-
-(or (keymapp mouse-map)
- (setq mouse-map (make-keymap)))
-
-(defun bind-bg-mouse-click (click-code function)
- "Bind bg-mouse CLICK-CODE to run FUNCTION."
- (define-key mouse-map (char-to-string click-code) function))
-
-(bind-bg-mouse-click bg-button-l 'bg-set-point)
-(bind-bg-mouse-click bg-button-m 'bg-yank)
-(bind-bg-mouse-click bg-button-r 'bg-set-mark)
-(bind-bg-mouse-click (+ bg-button-l bg-button-m) 'yank-pop-1)
-(bind-bg-mouse-click (+ bg-button-l bg-button-r) 'bg-kill-region)
-(bind-bg-mouse-click (+ bg-button-m bg-button-r) 'undo)
-(bind-bg-mouse-click (+ bg-button-l bg-button-m bg-button-r) 'undo)
-(bind-bg-mouse-click (+ bg-in-modeline bg-button-l) 'scroll-up)
-(bind-bg-mouse-click (+ bg-in-modeline bg-button-m) 'bg-move-by-percentage)
-(bind-bg-mouse-click (+ bg-in-modeline bg-button-r) 'scroll-down)
-(bind-bg-mouse-click (+ bg-in-scrollbar bg-button-l) 'bg-mouse-line-to-top)
-(bind-bg-mouse-click (+ bg-in-scrollbar bg-button-m) 'bg-mouse-line-to-center)
-(bind-bg-mouse-click (+ bg-in-scrollbar bg-button-r) 'bg-mouse-line-to-bottom)
-(bind-bg-mouse-click (+ bg-in-minibuf bg-button-l) 'execute-extended-command)
-(bind-bg-mouse-click (+ bg-in-minibuf bg-button-m) 'suspend-emacs)
-(bind-bg-mouse-click (+ bg-in-minibuf bg-button-r) 'eval-expression)
-
-(provide 'bg-mouse)
-
-;;; arch-tag: b3d06605-2971-44b1-be2c-e49c24e1a8d3
-;;; bg-mouse.el ends here
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