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annotate lisp/term/bg-mouse.el @ 5940:c608d4b0b75e cygwin64 tip
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| author | Henry Thompson <ht@markup.co.uk> |
|---|---|
| date | Thu, 16 Dec 2021 18:48:58 +0000 |
| parents | b9167d522a9a |
| children |
| rev | line source |
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| 0 | 1 ;;; bg-mouse.el --- GNU Emacs code for BBN Bitgraph mouse. |
| 2 | |
| 3 ;; Copyright (C) Free Software Foundation, Inc. Oct 1985. | |
| 4 | |
| 5 ;; Author: John Robinson <jr@bbn-unix.arpa> | |
| 6 ;; Stephen Gildea <gildea@bbn.com> | |
| 7 ;; Maintainer: FSF | |
| 8 ;; Keywords: hardware | |
| 9 | |
|
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10 ;; This file is part of XEmacs. |
| 0 | 11 |
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12 ;; XEmacs is free software: you can redistribute it and/or modify it |
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13 ;; under the terms of the GNU General Public License as published by the |
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14 ;; Free Software Foundation, either version 3 of the License, or (at your |
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15 ;; option) any later version. |
| 0 | 16 |
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17 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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18 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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19 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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20 ;; for more details. |
| 0 | 21 |
| 22 ;; You should have received a copy of the GNU General Public License | |
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23 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 0 | 24 |
| 25 ;;; Code: | |
| 26 | |
| 772 | 27 ;;; #### utterly broken. I've put in hacks so we don't get byte-comp |
| 28 ;;; warnings, but this shit should go NOW. --ben | |
| 29 | |
| 0 | 30 ;;; Original version by John Robinson (jr@bbn-unix.arpa, bbncca!jr), Oct 1985 |
| 31 ;;; Modularized and enhanced by gildea@bbn.com Nov 1987 | |
| 32 ;;; Time stamp <89/03/21 14:27:08 gildea> | |
| 33 | |
| 34 ;;; User customization option: | |
| 35 | |
| 36 (defvar bg-mouse-fast-select-window nil | |
| 37 "*Non-nil for mouse hits to select new window, then execute; else just select.") | |
| 38 | |
| 39 ;;; These numbers are summed to make the index into the mouse-map. | |
| 40 ;;; The low three bits correspond to what the mouse actually sends. | |
| 41 (defconst bg-button-r 1) | |
| 42 (defconst bg-button-m 2) | |
| 43 (defconst bg-button-c 2) | |
| 44 (defconst bg-button-l 4) | |
| 45 (defconst bg-in-modeline 8) | |
| 46 (defconst bg-in-scrollbar 16) | |
| 47 (defconst bg-in-minibuf 24) | |
| 48 | |
| 49 ;;; semicolon screws up indenting, so use this instead | |
| 50 (defconst semicolon ?\;) | |
| 51 | |
| 52 ;;; Defuns: | |
| 53 | |
| 772 | 54 ;; #### bunch of crap. |
| 55 (globally-declare-boundp 'mouse-map) | |
| 56 | |
| 57 (defun bg-window-edges (&optional win) | |
| 58 (error "not implemented") | |
| 59 (window-pixel-edges win)) | |
| 60 | |
| 0 | 61 (defun bg-mouse-report (prefix-arg) |
| 62 "Read, parse, and execute a BBN BitGraph mouse click. | |
| 63 | |
| 64 L-- move point | These apply for mouse click in a window. | |
| 65 --R set mark | If bg-mouse-fast-select-window is nil, | |
| 66 L-R kill region | these commands on a nonselected window | |
| 67 -C- move point and yank | just select that window. | |
| 68 LC- yank-pop | | |
| 69 -CR or LCR undo | \"Scroll bar\" is right-hand window column. | |
| 70 | |
| 71 on modeline: on \"scroll bar\": in minibuffer: | |
| 72 L-- scroll-up line to top execute-extended-command | |
| 73 --R scroll-down line to bottom eval-expression | |
| 74 -C- proportional goto-char line to middle suspend-emacs | |
| 75 | |
| 76 To reinitialize the mouse if the terminal is reset, type ESC : RET" | |
| 77 (interactive "P") | |
| 772 | 78 (declare (special bg-mouse-x bg-mouse-y bg-cursor-window)) |
| 0 | 79 (bg-get-tty-num semicolon) |
| 80 (let* | |
| 81 ((screen-mouse-x (min (1- (frame-width)) ;don't hit column 86! | |
| 82 (/ (bg-get-tty-num semicolon) 9))) | |
| 83 (screen-mouse-y (- (1- (frame-height)) ;assume default font size. | |
| 444 | 84 (/ (bg-get-tty-num semicolon) 16))) |
| 0 | 85 (bg-mouse-buttons (% (bg-get-tty-num ?c) 8)) |
| 86 (bg-mouse-window (bg-window-from-x-y screen-mouse-x screen-mouse-y)) | |
| 87 (bg-cursor-window (selected-window)) | |
| 772 | 88 (edges (bg-window-edges bg-mouse-window)) |
| 89 (minibuf-p (= screen-mouse-y (1- (frame-height)))) | |
| 0 | 90 (in-modeline-p (and (not minibuf-p) |
| 91 (= screen-mouse-y (1- (nth 3 edges))))) | |
| 92 (in-scrollbar-p (and (not minibuf-p) (not in-modeline-p) | |
| 93 (>= screen-mouse-x (1- (nth 2 edges))))) | |
| 94 (same-window-p (eq bg-mouse-window bg-cursor-window)) | |
| 95 (in-minibuf-p (and minibuf-p | |
| 96 (not bg-mouse-window))) ;minibuf must be inactive | |
| 97 (bg-mode-bits (+ (if in-minibuf-p bg-in-minibuf 0) | |
| 98 (if in-modeline-p bg-in-modeline 0) | |
| 99 (if in-scrollbar-p bg-in-scrollbar 0))) | |
| 100 (bg-command | |
| 101 (lookup-key mouse-map | |
| 102 (char-to-string (+ bg-mode-bits bg-mouse-buttons)))) | |
| 103 (bg-mouse-x (- screen-mouse-x (nth 0 edges))) | |
| 104 (bg-mouse-y (- screen-mouse-y (nth 1 edges)))) | |
| 105 (cond ((or in-modeline-p in-scrollbar-p) | |
| 106 (select-window bg-mouse-window) | |
| 107 (bg-command-execute bg-command) | |
| 108 (select-window bg-cursor-window)) | |
| 109 ((or same-window-p in-minibuf-p) | |
| 110 (bg-command-execute bg-command)) | |
| 111 (t ;in another window | |
| 112 (select-window bg-mouse-window) | |
| 113 (if bg-mouse-fast-select-window | |
| 114 (bg-command-execute bg-command))) | |
| 115 ))) | |
| 116 | |
| 117 | |
| 118 ;;; Library of commands: | |
| 119 | |
| 120 (defun bg-set-point () | |
| 121 "Move point to location of BitGraph mouse." | |
| 122 (interactive) | |
| 772 | 123 (declare (special bg-mouse-x bg-mouse-y)) |
| 0 | 124 (bg-move-point-to-x-y bg-mouse-x bg-mouse-y) |
| 125 (setq this-command 'next-line) ;make subsequent line moves work | |
| 126 (setq temporary-goal-column bg-mouse-x)) | |
| 127 | |
| 128 (defun bg-set-mark () | |
| 129 "Set mark at location of BitGraph mouse." | |
| 130 (interactive) | |
| 772 | 131 (declare (special bg-mouse-x bg-mouse-y)) |
| 0 | 132 (push-mark) |
| 133 (bg-move-point-to-x-y bg-mouse-x bg-mouse-y) | |
| 134 (exchange-point-and-mark)) | |
| 135 | |
| 136 (defun bg-yank () | |
| 137 "Move point to location of BitGraph mouse and yank." | |
| 138 (interactive "*") | |
| 772 | 139 (declare (special bg-mouse-x bg-mouse-y)) |
| 0 | 140 (bg-move-point-to-x-y bg-mouse-x bg-mouse-y) |
| 141 (setq this-command 'yank) | |
| 142 (yank)) | |
| 143 | |
| 144 (defun yank-pop-1 () | |
| 145 (interactive "*") | |
| 146 (yank-pop 1)) | |
| 147 | |
| 148 (defun bg-yank-or-pop () | |
| 149 "Move point to location of BitGraph mouse and yank. If last command | |
| 150 was a yank, do a yank-pop." | |
| 151 (interactive "*") | |
| 152 (if (eql last-command 'yank) | |
| 153 (yank-pop 1) | |
| 154 (bg-yank))) | |
| 155 | |
| 156 ;;; In 18.51, Emacs Lisp doesn't provide most-positive-fixnum | |
| 157 (defconst bg-most-positive-fixnum 8388607) | |
| 158 | |
| 159 (defun bg-move-by-percentage () | |
| 160 "Go to location in buffer that is the same percentage of the way | |
| 161 through the buffer as the BitGraph mouse's X position in the window." | |
| 162 (interactive) | |
| 772 | 163 (declare (special bg-mouse-x bg-mouse-y)) |
| 0 | 164 ;; check carefully for overflow in intermediate calculations |
| 165 (goto-char | |
| 166 (cond ((zerop bg-mouse-x) | |
| 167 0) | |
| 168 ((< (buffer-size) (/ bg-most-positive-fixnum bg-mouse-x)) | |
| 169 ;; no danger of overflow: compute it exactly | |
| 170 (/ (* bg-mouse-x (buffer-size)) | |
| 171 (1- (window-width)))) | |
| 172 (t | |
| 173 ;; overflow possible: approximate | |
| 174 (* (/ (buffer-size) (1- (window-width))) | |
| 175 bg-mouse-x)))) | |
| 176 (beginning-of-line) | |
| 177 (what-cursor-position)) | |
| 178 | |
| 179 (defun bg-mouse-line-to-top () | |
| 180 "Scroll the line pointed to by the BitGraph mouse to the top of the window." | |
| 181 (interactive) | |
| 772 | 182 (declare (special bg-mouse-x bg-mouse-y)) |
| 0 | 183 (scroll-up bg-mouse-y)) |
| 184 | |
| 185 (defun bg-mouse-line-to-center () | |
| 444 | 186 "Scroll the line pointed to by the BitGraph mouse to the center |
| 187 of the window." | |
| 0 | 188 (interactive) |
| 772 | 189 (declare (special bg-mouse-x bg-mouse-y)) |
| 0 | 190 (scroll-up (/ (+ 2 bg-mouse-y bg-mouse-y (- (window-height))) 2))) |
| 191 | |
| 192 (defun bg-mouse-line-to-bottom () | |
| 193 "Scroll the line pointed to by the mouse to the bottom of the window." | |
| 194 (interactive) | |
| 772 | 195 (declare (special bg-mouse-x bg-mouse-y)) |
| 0 | 196 (scroll-up (+ bg-mouse-y (- 2 (window-height))))) |
| 197 | |
| 198 (defun bg-kill-region () | |
| 199 (interactive "*") | |
| 200 (kill-region (region-beginning) (region-end))) | |
| 201 | |
| 202 (defun bg-insert-moused-sexp () | |
| 203 "Insert a copy of the word (actually sexp) that the mouse is pointing at. | |
| 204 Sexp is inserted into the buffer at point (where the text cursor is)." | |
| 205 (interactive) | |
| 772 | 206 (declare (special bg-mouse-x bg-mouse-y bg-cursor-window)) |
| 0 | 207 (let ((moused-text |
| 208 (save-excursion | |
| 209 (bg-move-point-to-x-y bg-mouse-x bg-mouse-y) | |
| 210 (if (looking-at "\\s)") | |
| 211 (forward-char 1) | |
| 212 (forward-sexp 1)) | |
| 213 (buffer-substring (save-excursion (backward-sexp 1) (point)) | |
| 214 (point))))) | |
| 215 (select-window bg-cursor-window) | |
| 216 (delete-horizontal-space) | |
| 217 (cond | |
| 218 ((bolp) | |
| 219 (indent-according-to-mode)) | |
| 220 ;; In Lisp assume double-quote is closing; in Text assume opening. | |
| 221 ;; Why? Because it does the right thing most often. | |
| 446 | 222 ((save-excursion (backward-char 1) |
| 0 | 223 (and (not (looking-at "\\s\"")) |
| 224 (looking-at "[`'\"\\]\\|\\s("))) | |
| 225 nil) | |
| 226 (t | |
| 227 (insert-string " "))) | |
| 228 (insert-string moused-text) | |
| 229 (or (eolp) | |
| 230 (looking-at "\\s.\\|\\s)") | |
| 231 (and (looking-at "'") (looking-at "\\sw")) ;hack for text mode | |
| 232 (save-excursion (insert-string " "))))) | |
| 233 | |
| 234 ;;; Utility functions: | |
| 235 | |
| 236 (defun bg-get-tty-num (term-char) | |
| 237 "Read from terminal until TERM-CHAR is read, and return intervening number. | |
| 238 If non-numeric not matching TERM-CHAR, reprogram the mouse and signal an error." | |
| 239 (let | |
| 240 ((num 0) | |
| 241 (char (- (read-char) 48))) | |
| 242 (while (and (>= char 0) | |
| 243 (<= char 9)) | |
| 244 (setq num (+ (* num 10) char)) | |
| 245 (setq char (- (read-char) 48))) | |
| 246 (or (eq term-char (+ char 48)) | |
| 247 (progn | |
| 248 (bg-program-mouse) | |
| 249 (error | |
| 250 "Invalid data format in bg-mouse command: mouse reinitialized."))) | |
| 251 num)) | |
| 252 | |
| 253 ;;; Note that this fails in the minibuf because move-to-column doesn't | |
| 254 ;;; allow for the width of the prompt. | |
| 255 (defun bg-move-point-to-x-y (x y) | |
| 256 "Position cursor in window coordinates. | |
| 257 X and Y are 0-based character positions in the window." | |
| 258 (move-to-window-line y) | |
| 259 ;; if not on a wrapped line, zero-column will be 0 | |
| 260 (let ((zero-column (current-column)) | |
| 261 (scroll-offset (window-hscroll))) | |
| 262 ;; scrolling takes up column 0 to display the $ | |
| 263 (if (> scroll-offset 0) | |
| 264 (setq scroll-offset (1- scroll-offset))) | |
| 265 (move-to-column (+ zero-column scroll-offset x)) | |
| 266 )) | |
| 267 | |
| 268 ;;; Returns the window that screen position (x, y) is in or nil if none, | |
| 269 ;;; meaning we are in the echo area with a non-active minibuffer. | |
| 270 ;;; If coordinates-in-window-p were not in an X-windows-specific file | |
| 271 ;;; we could use that. In Emacs 19 can even use locate-window-from-coordinates | |
| 272 (defun bg-window-from-x-y (x y) | |
| 273 "Find window corresponding to screen coordinates. | |
| 274 X and Y are 0-based character positions on the screen." | |
| 772 | 275 (let ((edges (bg-window-edges)) |
| 0 | 276 (window nil)) |
| 277 (while (and (not (eq window (selected-window))) | |
| 278 (or (< y (nth 1 edges)) | |
| 279 (>= y (nth 3 edges)) | |
| 280 (< x (nth 0 edges)) | |
| 281 (>= x (nth 2 edges)))) | |
| 282 (setq window (next-window window)) | |
| 772 | 283 (setq edges (bg-window-edges window))) |
| 0 | 284 (cond ((eq window (selected-window)) |
| 285 nil) ;we've looped: not found | |
| 286 ((not window) | |
| 287 (selected-window)) ;just starting: current window | |
| 288 (t | |
| 289 window)) | |
| 290 )) | |
| 291 | |
| 292 (defun bg-command-execute (bg-command) | |
| 293 (if (commandp bg-command) | |
| 294 (command-execute bg-command) | |
| 295 (ding))) | |
| 296 | |
| 297 (defun bg-program-mouse () | |
| 298 (send-string-to-terminal "\e:0;7;;;360;512;9;16;9;16c")) | |
| 299 | |
| 300 ;;; Note that the doc string for mouse-map (as defined in subr.el) | |
| 301 ;;; says it is for the X-window mouse. This is wrong; that keymap | |
| 302 ;;; should be used for your mouse no matter what terminal you have. | |
| 303 | |
| 304 (or (keymapp mouse-map) | |
| 305 (setq mouse-map (make-keymap))) | |
| 306 | |
| 307 (defun bind-bg-mouse-click (click-code function) | |
| 308 "Bind bg-mouse CLICK-CODE to run FUNCTION." | |
| 309 (define-key mouse-map (char-to-string click-code) function)) | |
| 310 | |
| 444 | 311 (bind-bg-mouse-click bg-button-l 'bg-set-point) |
| 0 | 312 (bind-bg-mouse-click bg-button-m 'bg-yank) |
| 313 (bind-bg-mouse-click bg-button-r 'bg-set-mark) | |
| 314 (bind-bg-mouse-click (+ bg-button-l bg-button-m) 'yank-pop-1) | |
| 315 (bind-bg-mouse-click (+ bg-button-l bg-button-r) 'bg-kill-region) | |
| 316 (bind-bg-mouse-click (+ bg-button-m bg-button-r) 'undo) | |
| 317 (bind-bg-mouse-click (+ bg-button-l bg-button-m bg-button-r) 'undo) | |
| 318 (bind-bg-mouse-click (+ bg-in-modeline bg-button-l) 'scroll-up) | |
| 319 (bind-bg-mouse-click (+ bg-in-modeline bg-button-m) 'bg-move-by-percentage) | |
| 320 (bind-bg-mouse-click (+ bg-in-modeline bg-button-r) 'scroll-down) | |
| 321 (bind-bg-mouse-click (+ bg-in-scrollbar bg-button-l) 'bg-mouse-line-to-top) | |
| 322 (bind-bg-mouse-click (+ bg-in-scrollbar bg-button-m) 'bg-mouse-line-to-center) | |
| 323 (bind-bg-mouse-click (+ bg-in-scrollbar bg-button-r) 'bg-mouse-line-to-bottom) | |
| 324 (bind-bg-mouse-click (+ bg-in-minibuf bg-button-l) 'execute-extended-command) | |
| 325 (bind-bg-mouse-click (+ bg-in-minibuf bg-button-m) 'suspend-emacs) | |
| 326 (bind-bg-mouse-click (+ bg-in-minibuf bg-button-r) 'eval-expression) | |
| 327 | |
| 328 (provide 'bg-mouse) | |
| 329 | |
| 330 ;;; bg-mouse.el ends here |