lisp/mouse.el

   1 ;;; mouse.el --- window system-independent mouse support.
   2
   3 ;;; Copyright (C) 1993 Free Software Foundation, Inc.
   4
   5 ;; Maintainer: FSF
   6 ;; Keywords: hardware
   7
   8 ;;; This file is part of GNU Emacs.
   9
  10 ;;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;;; it under the terms of the GNU General Public License as published by
  12 ;;; the Free Software Foundation; either version 2, or (at your option)
  13 ;;; any later version.
  14
  15 ;;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;;; GNU General Public License for more details.
  19
  20 ;;; You should have received a copy of the GNU General Public License
  21 ;;; along with GNU Emacs; see the file COPYING.  If not, write to
  22 ;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23
  24 ;;; Utility functions.
  25
  26 ;;; Indent track-mouse like progn.
  27 (put 'track-mouse 'lisp-indent-function 0)
  28
  29 \f
  30 (defun mouse-delete-window (click)
  31   "Delete the window you click on.
  32 This must be bound to a mouse click."
  33   (interactive "e")
  34   (delete-window (posn-window (event-start click))))
  35
  36 (defun mouse-tear-off-window (click)
  37   "Delete the window clicked on, and create a new frame displaying its buffer."
  38   (interactive "e")
  39   (let* ((window (posn-window (event-start click)))
  40          (buf (window-buffer window))
  41          (frame (new-frame)))
  42     (select-frame frame)
  43     (switch-to-buffer buf)
  44     (delete-window window)))
  45
  46 (defun mouse-delete-other-windows ()
  47   "Delete all window except the one you click on."
  48   (interactive "@")
  49   (delete-other-windows))
  50
  51 (defun mouse-split-window-vertically (click)
  52   "Select Emacs window mouse is on, then split it vertically in half.
  53 The window is split at the line clicked on.
  54 This command must be bound to a mouse click."
  55   (interactive "@e")
  56   (let ((start (event-start click)))
  57     (select-window (posn-window start))
  58     (let ((new-height (1+ (cdr (posn-col-row (event-end click)))))
  59           (first-line window-min-height)
  60           (last-line (- (window-height) window-min-height)))
  61       (if (< last-line first-line)
  62           (error "window too short to split")
  63         (split-window-vertically
  64          (min (max new-height first-line) last-line))))))
  65
  66 (defun mouse-split-window-horizontally (click)
  67   "Select Emacs window mouse is on, then split it horizontally in half.
  68 The window is split at the column clicked on.
  69 This command must be bound to a mouse click."
  70   (interactive "@e")
  71   (let ((start (event-start click)))
  72     (select-window (posn-window start))
  73     (let ((new-width (1+ (car (posn-col-row (event-end click)))))
  74           (first-col window-min-width)
  75           (last-col (- (window-width) window-min-width)))
  76       (if (< last-col first-col)
  77           (error "window too narrow to split")
  78         (split-window-horizontally
  79          (min (max new-width first-col) last-col))))))
  80
  81 (defun mouse-set-point (click)
  82   "Move point to the position clicked on with the mouse.
  83 This must be bound to a mouse click."
  84   (interactive "e")
  85   (let ((posn (event-start click)))
  86     (select-window (posn-window posn))
  87     (if (numberp (posn-point posn))
  88         (goto-char (posn-point posn)))))
  89
  90 (defun mouse-set-region (click)
  91   "Set the region to the text that the mouse is dragged over.
  92 This must be bound to a mouse click."
  93   (interactive "e")
  94   (let ((posn (event-start click))
  95         (end (event-end click)))
  96     (select-window (posn-window posn))
  97     (if (numberp (posn-point posn))
  98         (goto-char (posn-point posn)))
  99     (sit-for 1)
 100     (push-mark)
 101     (if (numberp (posn-point end))
 102         (goto-char (posn-point end)))))
 103
 104 (defun mouse-set-mark (click)
 105   "Set mark at the position clicked on with the mouse.
 106 Display cursor at that position for a second.
 107 This must be bound to a mouse click."
 108   (interactive "e")
 109   (let ((point-save (point)))
 110     (unwind-protect
 111         (progn (mouse-set-point click)
 112                (push-mark nil t)
 113                (sit-for 1))
 114       (goto-char point-save))))
 115
 116 (defun mouse-kill (click)
 117   "Kill the region between point and the mouse click.
 118 The text is saved in the kill ring, as with \\[kill-region]."
 119   (interactive "e")
 120   (let ((click-posn (posn-point (event-start click))))
 121     (if (numberp click-posn)
 122         (kill-region (min (point) click-posn)
 123                      (max (point) click-posn)))))
 124
 125 (defun mouse-yank-at-click (click arg)
 126   "Insert the last stretch of killed text at the position clicked on.
 127 Prefix arguments are interpreted as with \\[yank]."
 128   (interactive "e\nP")
 129   (mouse-set-point click)
 130   (yank arg))
 131
 132 (defun mouse-kill-ring-save (click)
 133   "Copy the region between point and the mouse click in the kill ring.
 134 This does not delete the region; it acts like \\[kill-ring-save]."
 135   (interactive "e")
 136   (mouse-set-mark click)
 137   (call-interactively 'kill-ring-save))
 138
 139 ;;; This function used to delete the text between point and the mouse
 140 ;;; whenever it was equal to the front of the kill ring, but some
 141 ;;; people found that confusing.
 142
 143 ;;; A list (TEXT START END), describing the text and position of the last
 144 ;;; invocation of mouse-save-then-kill.
 145 (defvar mouse-save-then-kill-posn nil)
 146
 147 (defun mouse-save-then-kill (click)
 148   "Save text to point in kill ring; the second time, kill the text.
 149 If the text between point and the mouse is the same as what's
 150 at the front of the kill ring, this deletes the text.
 151 Otherwise, it adds the text to the kill ring, like \\[kill-ring-save],
 152 which prepares for a second click to delete the text."
 153   (interactive "e")
 154   (let ((click-posn (posn-point (event-start click))))
 155     (if (and (eq last-command 'kill-region)
 156              mouse-save-then-kill-posn
 157              (eq (car mouse-save-then-kill-posn) (car kill-ring))
 158              (equal (cdr mouse-save-then-kill-posn) (list (point) click-posn)))
 159         ;; If this is the second time we've called
 160         ;; mouse-save-then-kill, delete the text from the buffer.
 161         (progn
 162           (let ((buffer-undo-list t))
 163             (delete-region (point) (mark)))
 164           ;; Make the undo list by hand so it is shared.
 165           (if (not (eq buffer-undo-list t))
 166               (setq buffer-undo-list
 167                     (cons (cons (car kill-ring) (point)) buffer-undo-list))))
 168       ;; Otherwise, save this region.
 169       (mouse-set-mark click)
 170       (call-interactively 'kill-ring-save)
 171       (setq mouse-save-then-kill-posn
 172             (list (car kill-ring) (point) click-posn)))))
 173
 174 (defun mouse-buffer-menu (event)
 175   "Pop up a menu of buffers for selection with the mouse.
 176 This switches buffers in the window that you clicked on,
 177 and selects that window."
 178   (interactive "e")
 179   (let ((menu
 180          (list "Buffer Menu"
 181                (cons "Select Buffer"
 182                      (let ((tail (buffer-list))
 183                            head)
 184                        (while tail
 185                          (let ((elt (car tail)))
 186                            (if (not (string-match "^ "
 187                                                   (buffer-name elt)))
 188                                (setq head (cons
 189                                            (cons
 190                                             (format
 191                                              "%14s   %s"
 192                                              (buffer-name elt)
 193                                              (or (buffer-file-name elt) ""))
 194                                             elt)
 195                                            head))))
 196                          (setq tail (cdr tail)))
 197                        (reverse head))))))
 198     (let ((buf (x-popup-menu event menu))
 199           (window (posn-window (event-start event))))
 200       (if buf
 201           (progn
 202             (select-window window)
 203             (switch-to-buffer buf))))))
 204 \f
 205 ;;; These need to be rewritten for the new scroll bar implementation.
 206
 207 ;;;!! ;; Commands for the scroll bar.
 208 ;;;!!
 209 ;;;!! (defun mouse-scroll-down (click)
 210 ;;;!!   (interactive "@e")
 211 ;;;!!   (scroll-down (1+ (cdr (mouse-coords click)))))
 212 ;;;!!
 213 ;;;!! (defun mouse-scroll-up (click)
 214 ;;;!!   (interactive "@e")
 215 ;;;!!   (scroll-up (1+ (cdr (mouse-coords click)))))
 216 ;;;!!
 217 ;;;!! (defun mouse-scroll-down-full ()
 218 ;;;!!   (interactive "@")
 219 ;;;!!   (scroll-down nil))
 220 ;;;!!
 221 ;;;!! (defun mouse-scroll-up-full ()
 222 ;;;!!   (interactive "@")
 223 ;;;!!   (scroll-up nil))
 224 ;;;!!
 225 ;;;!! (defun mouse-scroll-move-cursor (click)
 226 ;;;!!   (interactive "@e")
 227 ;;;!!   (move-to-window-line (1+ (cdr (mouse-coords click)))))
 228 ;;;!!
 229 ;;;!! (defun mouse-scroll-absolute (event)
 230 ;;;!!   (interactive "@e")
 231 ;;;!!   (let* ((pos (car event))
 232 ;;;!!    (position (car pos))
 233 ;;;!!    (length (car (cdr pos))))
 234 ;;;!!     (if (<= length 0) (setq length 1))
 235 ;;;!!     (let* ((scale-factor (max 1 (/ length (/ 8000000 (buffer-size)))))
 236 ;;;!!      (newpos (* (/ (* (/ (buffer-size) scale-factor)
 237 ;;;!!                       position)
 238 ;;;!!                    length)
 239 ;;;!!                 scale-factor)))
 240 ;;;!!       (goto-char newpos)
 241 ;;;!!       (recenter '(4)))))
 242 ;;;!!
 243 ;;;!! (defun mouse-scroll-left (click)
 244 ;;;!!   (interactive "@e")
 245 ;;;!!   (scroll-left (1+ (car (mouse-coords click)))))
 246 ;;;!!
 247 ;;;!! (defun mouse-scroll-right (click)
 248 ;;;!!   (interactive "@e")
 249 ;;;!!   (scroll-right (1+ (car (mouse-coords click)))))
 250 ;;;!!
 251 ;;;!! (defun mouse-scroll-left-full ()
 252 ;;;!!   (interactive "@")
 253 ;;;!!   (scroll-left nil))
 254 ;;;!!
 255 ;;;!! (defun mouse-scroll-right-full ()
 256 ;;;!!   (interactive "@")
 257 ;;;!!   (scroll-right nil))
 258 ;;;!!
 259 ;;;!! (defun mouse-scroll-move-cursor-horizontally (click)
 260 ;;;!!   (interactive "@e")
 261 ;;;!!   (move-to-column (1+ (car (mouse-coords click)))))
 262 ;;;!!
 263 ;;;!! (defun mouse-scroll-absolute-horizontally (event)
 264 ;;;!!   (interactive "@e")
 265 ;;;!!   (let* ((pos (car event))
 266 ;;;!!    (position (car pos))
 267 ;;;!!    (length (car (cdr pos))))
 268 ;;;!!   (set-window-hscroll (selected-window) 33)))
 269 ;;;!!
 270 ;;;!! (global-set-key [scroll-bar mouse-1] 'mouse-scroll-up)
 271 ;;;!! (global-set-key [scroll-bar mouse-2] 'mouse-scroll-absolute)
 272 ;;;!! (global-set-key [scroll-bar mouse-3] 'mouse-scroll-down)
 273 ;;;!!
 274 ;;;!! (global-set-key [vertical-slider mouse-1] 'mouse-scroll-move-cursor)
 275 ;;;!! (global-set-key [vertical-slider mouse-2] 'mouse-scroll-move-cursor)
 276 ;;;!! (global-set-key [vertical-slider mouse-3] 'mouse-scroll-move-cursor)
 277 ;;;!!
 278 ;;;!! (global-set-key [thumbup mouse-1] 'mouse-scroll-up-full)
 279 ;;;!! (global-set-key [thumbup mouse-2] 'mouse-scroll-up-full)
 280 ;;;!! (global-set-key [thumbup mouse-3] 'mouse-scroll-up-full)
 281 ;;;!!
 282 ;;;!! (global-set-key [thumbdown mouse-1] 'mouse-scroll-down-full)
 283 ;;;!! (global-set-key [thumbdown mouse-2] 'mouse-scroll-down-full)
 284 ;;;!! (global-set-key [thumbdown mouse-3] 'mouse-scroll-down-full)
 285 ;;;!!
 286 ;;;!! (global-set-key [horizontal-scroll-bar mouse-1] 'mouse-scroll-left)
 287 ;;;!! (global-set-key [horizontal-scroll-bar mouse-2]
 288 ;;;!!           'mouse-scroll-absolute-horizontally)
 289 ;;;!! (global-set-key [horizontal-scroll-bar mouse-3] 'mouse-scroll-right)
 290 ;;;!!
 291 ;;;!! (global-set-key [horizontal-slider mouse-1]
 292 ;;;!!           'mouse-scroll-move-cursor-horizontally)
 293 ;;;!! (global-set-key [horizontal-slider mouse-2]
 294 ;;;!!           'mouse-scroll-move-cursor-horizontally)
 295 ;;;!! (global-set-key [horizontal-slider mouse-3]
 296 ;;;!!           'mouse-scroll-move-cursor-horizontally)
 297 ;;;!!
 298 ;;;!! (global-set-key [thumbleft mouse-1] 'mouse-scroll-left-full)
 299 ;;;!! (global-set-key [thumbleft mouse-2] 'mouse-scroll-left-full)
 300 ;;;!! (global-set-key [thumbleft mouse-3] 'mouse-scroll-left-full)
 301 ;;;!!
 302 ;;;!! (global-set-key [thumbright mouse-1] 'mouse-scroll-right-full)
 303 ;;;!! (global-set-key [thumbright mouse-2] 'mouse-scroll-right-full)
 304 ;;;!! (global-set-key [thumbright mouse-3] 'mouse-scroll-right-full)
 305 ;;;!!
 306 ;;;!! (global-set-key [horizontal-scroll-bar S-mouse-2]
 307 ;;;!!           'mouse-split-window-horizontally)
 308 ;;;!! (global-set-key [mode-line S-mouse-2]
 309 ;;;!!           'mouse-split-window-horizontally)
 310 ;;;!! (global-set-key [vertical-scroll-bar S-mouse-2]
 311 ;;;!!           'mouse-split-window)
 312 \f
 313 ;;;!! ;;;;
 314 ;;;!! ;;;; Here are experimental things being tested.  Mouse events
 315 ;;;!! ;;;; are of the form:
 316 ;;;!! ;;;;      ((x y) window screen-part key-sequence timestamp)
 317 ;;;!! ;;
 318 ;;;!! ;;;;
 319 ;;;!! ;;;; Dynamically track mouse coordinates
 320 ;;;!! ;;;;
 321 ;;;!! ;;
 322 ;;;!! ;;(defun track-mouse (event)
 323 ;;;!! ;;  "Track the coordinates, absolute and relative, of the mouse."
 324 ;;;!! ;;  (interactive "@e")
 325 ;;;!! ;;  (while mouse-grabbed
 326 ;;;!! ;;    (let* ((pos (read-mouse-position (selected-screen)))
 327 ;;;!! ;;           (abs-x (car pos))
 328 ;;;!! ;;           (abs-y (cdr pos))
 329 ;;;!! ;;           (relative-coordinate (coordinates-in-window-p
 330 ;;;!! ;;                                 (list (car pos) (cdr pos))
 331 ;;;!! ;;                                 (selected-window))))
 332 ;;;!! ;;      (if (consp relative-coordinate)
 333 ;;;!! ;;          (message "mouse: [%d %d], (%d %d)" abs-x abs-y
 334 ;;;!! ;;                   (car relative-coordinate)
 335 ;;;!! ;;                   (car (cdr relative-coordinate)))
 336 ;;;!! ;;        (message "mouse: [%d %d]" abs-x abs-y)))))
 337 ;;;!!
 338 ;;;!! ;;
 339 ;;;!! ;; Dynamically put a box around the line indicated by point
 340 ;;;!! ;;
 341 ;;;!! ;;
 342 ;;;!! ;;(require 'backquote)
 343 ;;;!! ;;
 344 ;;;!! ;;(defun mouse-select-buffer-line (event)
 345 ;;;!! ;;  (interactive "@e")
 346 ;;;!! ;;  (let ((relative-coordinate
 347 ;;;!! ;;         (coordinates-in-window-p (car event) (selected-window)))
 348 ;;;!! ;;        (abs-y (car (cdr (car event)))))
 349 ;;;!! ;;    (if (consp relative-coordinate)
 350 ;;;!! ;;        (progn
 351 ;;;!! ;;          (save-excursion
 352 ;;;!! ;;            (move-to-window-line (car (cdr relative-coordinate)))
 353 ;;;!! ;;            (x-draw-rectangle
 354 ;;;!! ;;             (selected-screen)
 355 ;;;!! ;;             abs-y 0
 356 ;;;!! ;;             (save-excursion
 357 ;;;!! ;;                 (move-to-window-line (car (cdr relative-coordinate)))
 358 ;;;!! ;;                 (end-of-line)
 359 ;;;!! ;;                 (push-mark nil t)
 360 ;;;!! ;;                 (beginning-of-line)
 361 ;;;!! ;;                 (- (region-end) (region-beginning))) 1))
 362 ;;;!! ;;          (sit-for 1)
 363 ;;;!! ;;          (x-erase-rectangle (selected-screen))))))
 364 ;;;!! ;;
 365 ;;;!! ;;(defvar last-line-drawn nil)
 366 ;;;!! ;;(defvar begin-delim "[^ \t]")
 367 ;;;!! ;;(defvar end-delim   "[^ \t]")
 368 ;;;!! ;;
 369 ;;;!! ;;(defun mouse-boxing (event)
 370 ;;;!! ;;  (interactive "@e")
 371 ;;;!! ;;  (save-excursion
 372 ;;;!! ;;    (let ((screen (selected-screen)))
 373 ;;;!! ;;      (while (= (x-mouse-events) 0)
 374 ;;;!! ;;        (let* ((pos (read-mouse-position screen))
 375 ;;;!! ;;               (abs-x (car pos))
 376 ;;;!! ;;               (abs-y (cdr pos))
 377 ;;;!! ;;               (relative-coordinate
 378 ;;;!! ;;                (coordinates-in-window-p (` ((, abs-x) (, abs-y)))
 379 ;;;!! ;;                                         (selected-window)))
 380 ;;;!! ;;               (begin-reg nil)
 381 ;;;!! ;;               (end-reg nil)
 382 ;;;!! ;;               (end-column nil)
 383 ;;;!! ;;               (begin-column nil))
 384 ;;;!! ;;          (if (and (consp relative-coordinate)
 385 ;;;!! ;;                   (or (not last-line-drawn)
 386 ;;;!! ;;                       (not (= last-line-drawn abs-y))))
 387 ;;;!! ;;              (progn
 388 ;;;!! ;;                (move-to-window-line (car (cdr relative-coordinate)))
 389 ;;;!! ;;                (if (= (following-char) 10)
 390 ;;;!! ;;                    ()
 391 ;;;!! ;;                  (progn
 392 ;;;!! ;;                    (setq begin-reg (1- (re-search-forward end-delim)))
 393 ;;;!! ;;                    (setq begin-column (1- (current-column)))
 394 ;;;!! ;;                    (end-of-line)
 395 ;;;!! ;;                    (setq end-reg (1+ (re-search-backward begin-delim)))
 396 ;;;!! ;;                    (setq end-column (1+ (current-column)))
 397 ;;;!! ;;                    (message "%s" (buffer-substring begin-reg end-reg))
 398 ;;;!! ;;                    (x-draw-rectangle screen
 399 ;;;!! ;;                                      (setq last-line-drawn abs-y)
 400 ;;;!! ;;                                      begin-column
 401 ;;;!! ;;                                      (- end-column begin-column) 1))))))))))
 402 ;;;!! ;;
 403 ;;;!! ;;(defun mouse-erase-box ()
 404 ;;;!! ;;  (interactive)
 405 ;;;!! ;;  (if last-line-drawn
 406 ;;;!! ;;      (progn
 407 ;;;!! ;;        (x-erase-rectangle (selected-screen))
 408 ;;;!! ;;        (setq last-line-drawn nil))))
 409 ;;;!!
 410 ;;;!! ;;; (defun test-x-rectangle ()
 411 ;;;!! ;;;   (use-local-mouse-map (setq rectangle-test-map (make-sparse-keymap)))
 412 ;;;!! ;;;   (define-key rectangle-test-map mouse-motion-button-left 'mouse-boxing)
 413 ;;;!! ;;;   (define-key rectangle-test-map mouse-button-left-up 'mouse-erase-box))
 414 ;;;!!
 415 ;;;!! ;;
 416 ;;;!! ;; Here is how to do double clicking in lisp.  About to change.
 417 ;;;!! ;;
 418 ;;;!!
 419 ;;;!! (defvar double-start nil)
 420 ;;;!! (defconst double-click-interval 300
 421 ;;;!!   "Max ticks between clicks")
 422 ;;;!!
 423 ;;;!! (defun double-down (event)
 424 ;;;!!   (interactive "@e")
 425 ;;;!!   (if double-start
 426 ;;;!!       (let ((interval (- (nth 4 event) double-start)))
 427 ;;;!!   (if (< interval double-click-interval)
 428 ;;;!!       (progn
 429 ;;;!!         (backward-up-list 1)
 430 ;;;!!         ;;      (message "Interval %d" interval)
 431 ;;;!!         (sleep-for 1)))
 432 ;;;!!   (setq double-start nil))
 433 ;;;!!     (setq double-start (nth 4 event))))
 434 ;;;!!
 435 ;;;!! (defun double-up (event)
 436 ;;;!!   (interactive "@e")
 437 ;;;!!   (and double-start
 438 ;;;!!        (> (- (nth 4 event ) double-start) double-click-interval)
 439 ;;;!!        (setq double-start nil)))
 440 ;;;!!
 441 ;;;!! ;;; (defun x-test-doubleclick ()
 442 ;;;!! ;;;   (use-local-mouse-map (setq doubleclick-test-map (make-sparse-keymap)))
 443 ;;;!! ;;;   (define-key doubleclick-test-map mouse-button-left 'double-down)
 444 ;;;!! ;;;   (define-key doubleclick-test-map mouse-button-left-up 'double-up))
 445 ;;;!!
 446 ;;;!! ;;
 447 ;;;!! ;; This scrolls while button is depressed.  Use preferable in scroll bar.
 448 ;;;!! ;;
 449 ;;;!!
 450 ;;;!! (defvar scrolled-lines 0)
 451 ;;;!! (defconst scroll-speed 1)
 452 ;;;!!
 453 ;;;!! (defun incr-scroll-down (event)
 454 ;;;!!   (interactive "@e")
 455 ;;;!!   (setq scrolled-lines 0)
 456 ;;;!!   (incremental-scroll scroll-speed))
 457 ;;;!!
 458 ;;;!! (defun incr-scroll-up (event)
 459 ;;;!!   (interactive "@e")
 460 ;;;!!   (setq scrolled-lines 0)
 461 ;;;!!   (incremental-scroll (- scroll-speed)))
 462 ;;;!!
 463 ;;;!! (defun incremental-scroll (n)
 464 ;;;!!   (while (= (x-mouse-events) 0)
 465 ;;;!!     (setq scrolled-lines (1+ (* scroll-speed scrolled-lines)))
 466 ;;;!!     (scroll-down n)
 467 ;;;!!     (sit-for 300 t)))
 468 ;;;!!
 469 ;;;!! (defun incr-scroll-stop (event)
 470 ;;;!!   (interactive "@e")
 471 ;;;!!   (message "Scrolled %d lines" scrolled-lines)
 472 ;;;!!   (setq scrolled-lines 0)
 473 ;;;!!   (sleep-for 1))
 474 ;;;!!
 475 ;;;!! ;;; (defun x-testing-scroll ()
 476 ;;;!! ;;;   (let ((scrolling-map (function mouse-vertical-scroll-bar-prefix)))
 477 ;;;!! ;;;     (define-key scrolling-map mouse-button-left 'incr-scroll-down)
 478 ;;;!! ;;;     (define-key scrolling-map mouse-button-right 'incr-scroll-up)
 479 ;;;!! ;;;     (define-key scrolling-map mouse-button-left-up 'incr-scroll-stop)
 480 ;;;!! ;;;     (define-key scrolling-map mouse-button-right-up 'incr-scroll-stop)))
 481 ;;;!!
 482 ;;;!! ;;
 483 ;;;!! ;; Some playthings suitable for picture mode?  They need work.
 484 ;;;!! ;;
 485 ;;;!!
 486 ;;;!! (defun mouse-kill-rectangle (event)
 487 ;;;!!   "Kill the rectangle between point and the mouse cursor."
 488 ;;;!!   (interactive "@e")
 489 ;;;!!   (let ((point-save (point)))
 490 ;;;!!     (save-excursion
 491 ;;;!!       (mouse-set-point event)
 492 ;;;!!       (push-mark nil t)
 493 ;;;!!       (if (> point-save (point))
 494 ;;;!!     (kill-rectangle (point) point-save)
 495 ;;;!!   (kill-rectangle point-save (point))))))
 496 ;;;!!
 497 ;;;!! (defun mouse-open-rectangle (event)
 498 ;;;!!   "Kill the rectangle between point and the mouse cursor."
 499 ;;;!!   (interactive "@e")
 500 ;;;!!   (let ((point-save (point)))
 501 ;;;!!     (save-excursion
 502 ;;;!!       (mouse-set-point event)
 503 ;;;!!       (push-mark nil t)
 504 ;;;!!       (if (> point-save (point))
 505 ;;;!!     (open-rectangle (point) point-save)
 506 ;;;!!   (open-rectangle point-save (point))))))
 507 ;;;!!
 508 ;;;!! ;; Must be a better way to do this.
 509 ;;;!!
 510 ;;;!! (defun mouse-multiple-insert (n char)
 511 ;;;!!   (while (> n 0)
 512 ;;;!!     (insert char)
 513 ;;;!!     (setq n (1- n))))
 514 ;;;!!
 515 ;;;!! ;; What this could do is not finalize until button was released.
 516 ;;;!!
 517 ;;;!! (defun mouse-move-text (event)
 518 ;;;!!   "Move text from point to cursor position, inserting spaces."
 519 ;;;!!   (interactive "@e")
 520 ;;;!!   (let* ((relative-coordinate
 521 ;;;!!     (coordinates-in-window-p (car event) (selected-window))))
 522 ;;;!!     (if (consp relative-coordinate)
 523 ;;;!!   (cond ((> (current-column) (car relative-coordinate))
 524 ;;;!!          (delete-char
 525 ;;;!!           (- (car relative-coordinate) (current-column))))
 526 ;;;!!         ((< (current-column) (car relative-coordinate))
 527 ;;;!!          (mouse-multiple-insert
 528 ;;;!!           (- (car relative-coordinate) (current-column)) " "))
 529 ;;;!!         ((= (current-column) (car relative-coordinate)) (ding))))))
 530 \f
 531 ;; Font selection.
 532
 533 (defvar x-fixed-font-alist
 534   '("Font menu"
 535     ("Misc"
 536      ("fixed" "fixed")
 537      ("6x10" "6x10")
 538      ("6x12" "6x12")
 539      ("6x13" "6x13")
 540      ("7x13" "7x13")
 541      ("7x14" "7x14")
 542      ("8x13" "8x13")
 543      ("8x13 bold" "8x13bold")
 544      ("8x16" "8x16")
 545      ("9x15" "9x15")
 546      ("9x15 bold" "9x15bold")
 547      ("10x20" "10x20")
 548      ("11x18" "11x18")
 549      ("12x24" "12x24"))
 550 ;;; We don't seem to have these; who knows what they are.
 551 ;;;    ("fg-18" "fg-18")
 552 ;;;    ("fg-25" "fg-25")
 553 ;;;    ("lucidasanstypewriter-12" "lucidasanstypewriter-12")
 554 ;;;    ("lucidasanstypewriter-bold-14" "lucidasanstypewriter-bold-14")
 555 ;;;    ("lucidasanstypewriter-bold-24" "lucidasanstypewriter-bold-24")
 556 ;;;    ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
 557 ;;;    ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
 558     ("Courier"
 559      ("8" "-adobe-courier-medium-r-normal--8-*-*-*-m-*-iso8859-1")
 560      ("10" "-adobe-courier-medium-r-normal--10-*-*-*-m-*-iso8859-1")
 561      ("12" "-adobe-courier-medium-r-normal--12-*-*-*-m-*-iso8859-1")
 562      ("14" "-adobe-courier-medium-r-normal--14-*-*-*-m-*-iso8859-1")
 563      ("18" "-adobe-courier-medium-r-normal--18-*-*-*-m-*-iso8859-1")
 564      ("24" "-adobe-courier-medium-r-normal--24-*-*-*-m-*-iso8859-1")
 565      ("8 bold" "-adobe-courier-bold-r-normal--8-*-*-*-m-*-iso8859-1")
 566      ("10 bold" "-adobe-courier-bold-r-normal--10-*-*-*-m-*-iso8859-1")
 567      ("12 bold" "-adobe-courier-bold-r-normal--12-*-*-*-m-*-iso8859-1")
 568      ("14 bold" "-adobe-courier-bold-r-normal--14-*-*-*-m-*-iso8859-1")
 569      ("18 bold" "-adobe-courier-bold-r-normal--18-*-*-*-m-*-iso8859-1")
 570      ("24 bold" "-adobe-courier-bold-r-normal--24-*-*-*-m-*-iso8859-1")
 571      ("8 slant" "-adobe-courier-medium-o-normal--8-*-*-*-m-*-iso8859-1")
 572      ("10 slant" "-adobe-courier-medium-o-normal--10-*-*-*-m-*-iso8859-1")
 573      ("12 slant" "-adobe-courier-medium-o-normal--12-*-*-*-m-*-iso8859-1")
 574      ("14 slant" "-adobe-courier-medium-o-normal--14-*-*-*-m-*-iso8859-1")
 575      ("18 slant" "-adobe-courier-medium-o-normal--18-*-*-*-m-*-iso8859-1")
 576      ("24 slant" "-adobe-courier-medium-o-normal--24-*-*-*-m-*-iso8859-1")
 577      ("8 bold slant" "-adobe-courier-bold-o-normal--8-*-*-*-m-*-iso8859-1")
 578      ("10 bold slant" "-adobe-courier-bold-o-normal--10-*-*-*-m-*-iso8859-1")
 579      ("12 bold slant" "-adobe-courier-bold-o-normal--12-*-*-*-m-*-iso8859-1")
 580      ("14 bold slant" "-adobe-courier-bold-o-normal--14-*-*-*-m-*-iso8859-1")
 581      ("18 bold slant" "-adobe-courier-bold-o-normal--18-*-*-*-m-*-iso8859-1")
 582      ("24 bold slant" "-adobe-courier-bold-o-normal--24-*-*-*-m-*-iso8859-1"))
 583     )
 584   "X fonts suitable for use in Emacs.")
 585
 586 (defun mouse-set-font (&optional font)
 587   "Select an emacs font from a list of known good fonts"
 588   (interactive
 589    (x-popup-menu last-nonmenu-event x-fixed-font-alist))
 590   (if font
 591       (modify-frame-parameters (selected-frame)
 592                                (list (cons 'font font)))))
 593 \f
 594 ;;; Bindings for mouse commands.
 595
 596 ;; This won't be needed once the drag and down events
 597 ;; are properly implemented.
 598 (global-set-key [mouse-1]       'mouse-set-point)
 599
 600 (global-set-key [drag-mouse-1]  'mouse-set-region)
 601 (global-set-key [mouse-2]       'mouse-yank-at-click)
 602 (global-set-key [mouse-3]       'mouse-save-then-kill)
 603
 604 ;; By binding these to down-going events, we let the user use the up-going
 605 ;; event to make the selection, saving a click.
 606 (global-set-key [C-down-mouse-1]        'mouse-buffer-menu)
 607 (global-set-key [C-down-mouse-3]        'mouse-set-font)
 608
 609 ;; Replaced with dragging mouse-1
 610 ;; (global-set-key [S-mouse-1]  'mouse-set-mark)
 611
 612 (global-set-key [mode-line mouse-1] 'mouse-delete-other-windows)
 613 (global-set-key [mode-line mouse-3] 'mouse-delete-window)
 614 (global-set-key [mode-line S-mouse-2] 'mouse-split-window-horizontally)
 615 \f
 616 ;; Define the mouse help menu tree.
 617
 618 (defvar help-menu-map '(keymap "Help"))
 619 (global-set-key [C-down-mouse-2] help-menu-map)
 620
 621 (defvar help-apropos-map (make-sparse-keymap "Is there a command that..."))
 622 (defvar help-keys-map (make-sparse-keymap "Key Commands <==> Functions"))
 623 (defvar help-manual-map (make-sparse-keymap "Manual and tutorial"))
 624 (defvar help-misc-map (make-sparse-keymap "Odds and ends"))
 625 (defvar help-modes-map (make-sparse-keymap "Modes"))
 626 (defvar help-admin-map (make-sparse-keymap "Administrivia"))
 627
 628 (define-key help-menu-map [apropos]
 629   (cons "@Is there a command that..." help-apropos-map))
 630 (define-key help-menu-map [keys]
 631   (cons "@Key Commands <==> Functions" help-keys-map))
 632 (define-key help-menu-map [manuals]
 633   (cons "@Manual and tutorial" help-manual-map))
 634 (define-key help-menu-map [misc]
 635   (cons "@Odds and ends" help-misc-map))
 636 (define-key help-menu-map [modes]
 637   (cons "@Modes" help-modes-map))
 638 (define-key help-menu-map [admin]
 639   (cons "@Administrivia" help-admin-map))
 640
 641 (define-key help-apropos-map "c" '("Command Apropos" . command-apropos))
 642 (define-key help-apropos-map "a" '("Apropos" . apropos))
 643
 644 (define-key help-keys-map "b"
 645   '("List all keystroke commands" . describe-bindings))
 646 (define-key help-keys-map "c"
 647   '("Describe key briefly" . describe-key-briefly))
 648 (define-key help-keys-map "k"
 649   '("Describe key verbose" . describe-key))
 650 (define-key help-keys-map "f"
 651   '("Describe Lisp function" . describe-function))
 652 (define-key help-keys-map "w"
 653   '("Where is this command" . where-is))
 654
 655 (define-key help-manual-map "i" '("Info system" . info))
 656 (define-key help-manual-map "t"
 657   '("Invoke Emacs tutorial" . help-with-tutorial))
 658
 659 (define-key help-misc-map "l" '("Last 100 Keystrokes" . view-lossage))
 660 (define-key help-misc-map "s" '("Describe syntax table" . describe-syntax))
 661
 662 (define-key help-modes-map "m"
 663   '("Describe current major mode" . describe-mode))
 664 (define-key help-modes-map "b"
 665   '("List all keystroke commands" . describe-bindings))
 666
 667 (define-key help-admin-map "n"
 668   '("view Emacs news" . view-emacs-news))
 669 (define-key help-admin-map "l"
 670   '("View the GNU Emacs license" . describe-copying))
 671 (define-key help-admin-map "d"
 672   '("Describe distribution" . describe-distribution))
 673 (define-key help-admin-map "w"
 674   '("Describe (non)warranty" . describe-no-warranty))
 675
 676 (provide 'mouse)
 677
 678 ;;; mouse.el ends here