lisp/obsolete/sup-mouse.el

   1 ;;; sup-mouse.el --- supdup mouse support for lisp machines
   2
   3 ;; Copyright (C) 1985-1986, 2001-2017 Free Software Foundation, Inc.
   4
   5 ;; Author: Wolfgang Rupprecht
   6 ;; Maintainer: emacs-devel@gnu.org
   7 ;; Created: 21 Nov 1986
   8 ;; Keywords: hardware
   9 ;; Obsolete-since: 24.4
  10
  11 ;;     (from code originally written by John Robinson@bbn for the bitgraph)
  12
  13 ;; This file is part of GNU Emacs.
  14
  15 ;; GNU Emacs is free software: you can redistribute it and/or modify
  16 ;; it under the terms of the GNU General Public License as published by
  17 ;; the Free Software Foundation, either version 3 of the License, or
  18 ;; (at your option) any later version.
  19
  20 ;; GNU Emacs is distributed in the hope that it will be useful,
  21 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 ;; GNU General Public License for more details.
  24
  25 ;; You should have received a copy of the GNU General Public License
  26 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  27
  28 ;;; Commentary:
  29
  30 ;;; Code:
  31
  32 ;;;  User customization option:
  33
  34 (defcustom sup-mouse-fast-select-window nil
  35   "Non-nil means mouse hits select new window, then execute.
  36 Otherwise just select."
  37   :type 'boolean
  38   :group 'mouse)
  39
  40 (defconst mouse-left 0)
  41 (defconst mouse-center 1)
  42 (defconst mouse-right 2)
  43
  44 (defconst mouse-2left 4)
  45 (defconst mouse-2center 5)
  46 (defconst mouse-2right 6)
  47
  48 (defconst mouse-3left 8)
  49 (defconst mouse-3center 9)
  50 (defconst mouse-3right 10)
  51
  52 ;;;  Defuns:
  53
  54 (defun sup-mouse-report ()
  55   "This function is called directly by the mouse, it parses and
  56 executes the mouse commands.
  57
  58  L move point          *  |---- These apply for mouse click in a window.
  59 2L delete word            |
  60 3L copy word              | If sup-mouse-fast-select-window is nil,
  61  C move point and yank *  | just selects that window.
  62 2C yank pop               |
  63  R set mark            *  |
  64 2R delete region          |
  65 3R copy region            |
  66
  67 on mode line                on \"scroll bar\"   in minibuffer
  68  L scroll-up                line to top         execute-extended-command
  69  C proportional goto-char   line to middle      mouse-help
  70  R scroll-down              line to bottom      eval-expression"
  71
  72   (interactive)
  73   (let*
  74 ;; expect a string of <esc>:<buttons>;<x-pos>;<y-pos>c
  75       ((buttons (sup-get-tty-num ?\;))
  76        (x (sup-get-tty-num ?\;))
  77        (y (sup-get-tty-num ?c))
  78        (window (sup-pos-to-window x y))
  79        (edges (window-edges window))
  80        (old-window (selected-window))
  81        (in-minibuf-p (eq y (1- (frame-height))))
  82        (same-window-p (and (not in-minibuf-p) (eq window old-window)))
  83        (in-mode-line-p (eq y (1- (nth 3 edges))))
  84        (in-scrollbar-p (>= x (1- (nth 2 edges)))))
  85     (setq x (- x (nth 0 edges)))
  86     (setq y (- y (nth 1 edges)))
  87
  88 ;    (error "mouse-hit %d %d %d" buttons x y) ;;;; debug
  89
  90     (cond (in-mode-line-p
  91            (select-window window)
  92            (cond ((= buttons mouse-left)
  93                   (scroll-up))
  94                  ((= buttons mouse-right)
  95                   (scroll-down))
  96                  ((= buttons mouse-center)
  97                   (goto-char (/ (* x
  98                                    (- (point-max) (point-min)))
  99                                 (1- (window-width))))
 100                   (beginning-of-line)
 101                   (what-cursor-position)))
 102            (select-window old-window))
 103           (in-scrollbar-p
 104            (select-window window)
 105            (scroll-up
 106             (cond ((= buttons mouse-left)
 107                    y)
 108                   ((= buttons mouse-right)
 109                    (+ y (- 2 (window-height))))
 110                   ((= buttons mouse-center)
 111                    (/ (+ 2 y y (- (window-height))) 2))
 112                   (t
 113                    0)))
 114            (select-window old-window))
 115           (same-window-p
 116            (cond ((= buttons mouse-left)
 117                   (sup-move-point-to-x-y x y))
 118                  ((= buttons mouse-2left)
 119                   (sup-move-point-to-x-y x y)
 120                   (kill-word 1))
 121                  ((= buttons mouse-3left)
 122                   (sup-move-point-to-x-y x y)
 123                   (save-excursion
 124                     (copy-region-as-kill
 125                      (point) (progn (forward-word 1) (point))))
 126                   (setq this-command 'yank)
 127                   )
 128                  ((= buttons mouse-right)
 129                   (push-mark)
 130                   (sup-move-point-to-x-y x y)
 131                   (exchange-point-and-mark))
 132                  ((= buttons mouse-2right)
 133                   (push-mark)
 134                   (sup-move-point-to-x-y x y)
 135                   (kill-region (mark) (point)))
 136                  ((= buttons mouse-3right)
 137                   (push-mark)
 138                   (sup-move-point-to-x-y x y)
 139                   (copy-region-as-kill (mark) (point))
 140                   (setq this-command 'yank))
 141                  ((= buttons mouse-center)
 142                   (sup-move-point-to-x-y x y)
 143                   (setq this-command 'yank)
 144                   (yank))
 145                  ((= buttons mouse-2center)
 146                   (yank-pop 1))
 147                  )
 148            )
 149           (in-minibuf-p
 150            (cond ((= buttons mouse-right)
 151                   (call-interactively 'eval-expression))
 152                  ((= buttons mouse-left)
 153                   (call-interactively 'execute-extended-command))
 154                  ((= buttons mouse-center)
 155                   (describe-function 'sup-mouse-report)); silly self help
 156                  ))
 157           (t                            ;in another window
 158            (select-window window)
 159            (cond ((not sup-mouse-fast-select-window))
 160                  ((= buttons mouse-left)
 161                   (sup-move-point-to-x-y x y))
 162                  ((= buttons mouse-right)
 163                   (push-mark)
 164                   (sup-move-point-to-x-y x y)
 165                   (exchange-point-and-mark))
 166                  ((= buttons mouse-center)
 167                   (sup-move-point-to-x-y x y)
 168                   (setq this-command 'yank)
 169                   (yank))
 170                  ))
 171           )))
 172 \f
 173
 174 (defun sup-get-tty-num (term-char)
 175   "Read from terminal until TERM-CHAR is read, and return intervening number.
 176 Upon non-numeric not matching TERM-CHAR signal an error."
 177   (let
 178       ((num 0)
 179        (char (read-char)))
 180     (while (and (>= char ?0)
 181                 (<= char ?9))
 182       (setq num (+ (* num 10) (- char ?0)))
 183       (setq char (read-char)))
 184     (or (eq term-char char)
 185         (error "Invalid data format in mouse command"))
 186     num))
 187
 188 (defun sup-move-point-to-x-y (x y)
 189   "Position cursor in window coordinates.
 190 X and Y are 0-based character positions in the window."
 191   (move-to-window-line y)
 192   (move-to-column x)
 193   )
 194
 195 (defun sup-pos-to-window (x y)
 196   "Find window corresponding to frame coordinates.
 197 X and Y are 0-based character positions on the frame."
 198   (get-window-with-predicate (lambda (w)
 199                                (coordinates-in-window-p (cons x y) w))))
 200
 201 (provide 'sup-mouse)
 202
 203 ;;; sup-mouse.el ends here