1 ;;; w32-win.el --- parse switches controlling interface with W32 window system.
3 ;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
8 ;; This file is part of GNU Emacs.
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)
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.
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 the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
27 ;; w32-win.el: this file is loaded from ../lisp/startup.el when it recognizes
28 ;; that W32 windows are to be used. Command line switches are parsed and those
29 ;; pertaining to W32 are processed and removed from the command line. The
30 ;; W32 display is opened and hooks are set for popping up the initial window.
32 ;; startup.el will then examine startup files, and eventually call the hooks
33 ;; which create the first window (s).
38 ;; These are the standard X switches from the Xt Initialize.c file of
41 ;; Command line Resource Manager string
44 ;; +synchronous *synchronous
45 ;; -background *background
48 ;; -bordercolor *borderColor
49 ;; -borderwidth .borderWidth
55 ;; -foreground *foreground
56 ;; -geometry .geometry
61 ;; -reverse *reverseVideo
63 ;; -selectionTimeout .selectionTimeout
64 ;; -synchronous *synchronous
67 ;; An alist of X options and the function which handles them. See
70 (if (not (eq window-system 'w32))
71 (error "%s: Loading w32-win.el but not compiled for w32" (invocation-name)))
80 ;; Because Windows scrollbars look and act quite differently compared
81 ;; with the standard X scroll-bars, we don't try to use the normal
82 ;; scroll bar routines.
84 (defun w32-handle-scroll-bar-event (event)
85 "Handle W32 scroll bar events to do normal Window style scrolling."
87 (let ((old-window (selected-window)))
89 (let* ((position (event-start event))
90 (window (nth 0 position))
91 (portion-whole (nth 2 position))
92 (bar-part (nth 4 position)))
94 (select-window window)
97 (goto-char (window-start window))
99 ((eq bar-part 'above-handle)
101 ((eq bar-part 'handle)
102 (scroll-bar-maybe-set-window-start event))
103 ((eq bar-part 'below-handle)
106 (goto-char (window-start window))
109 (select-window old-window))))
111 ;; The following definition is used for debugging.
112 ;(defun w32-handle-scroll-bar-event (event) (interactive "e") (princ event))
114 (global-set-key [vertical-scroll-bar mouse-1] 'w32-handle-scroll-bar-event)
116 ;; (scroll-bar-mode nil)
118 (defvar mouse-wheel-scroll-amount 4
119 "*Number of lines to scroll per click of the mouse wheel.")
121 (defun mouse-wheel-scroll-line (event)
122 "Scroll the current buffer by `mouse-wheel-scroll-amount'."
125 (if (< (car (cdr (cdr event))) 0)
126 (scroll-up mouse-wheel-scroll-amount)
127 (scroll-down mouse-wheel-scroll-amount))
130 ;; for scroll-in-place.el, this way the -scroll-line and -scroll-screen
131 ;; commands won't interact
132 (setq scroll-command-groups (list '(mouse-wheel-scroll-line)))
134 (defun mouse-wheel-scroll-screen (event)
135 "Scroll the current buffer by `mouse-wheel-scroll-amount'."
138 (if (< (car (cdr (cdr event))) 0)
143 ;; Bind the mouse-wheel event:
144 (global-set-key [mouse-wheel] 'mouse-wheel-scroll-line)
145 (global-set-key [C-mouse-wheel] 'mouse-wheel-scroll-screen)
147 (defvar x-invocation-args)
149 (defvar x-command-line-resources nil)
151 (defconst x-option-alist
152 '(("-bw" . x-handle-numeric-switch)
153 ("-d" . x-handle-display)
154 ("-display" . x-handle-display)
155 ("-name" . x-handle-name-rn-switch)
156 ("-rn" . x-handle-name-rn-switch)
157 ("-T" . x-handle-switch)
158 ("-r" . x-handle-switch)
159 ("-rv" . x-handle-switch)
160 ("-reverse" . x-handle-switch)
161 ("-fn" . x-handle-switch)
162 ("-font" . x-handle-switch)
163 ("-ib" . x-handle-numeric-switch)
164 ("-g" . x-handle-geometry)
165 ("-geometry" . x-handle-geometry)
166 ("-fg" . x-handle-switch)
167 ("-foreground". x-handle-switch)
168 ("-bg" . x-handle-switch)
169 ("-background". x-handle-switch)
170 ("-ms" . x-handle-switch)
171 ("-itype" . x-handle-switch)
172 ("-i" . x-handle-switch)
173 ("-iconic" . x-handle-iconic)
174 ("-xrm" . x-handle-xrm-switch)
175 ("-cr" . x-handle-switch)
176 ("-vb" . x-handle-switch)
177 ("-hb" . x-handle-switch)
178 ("-bd" . x-handle-switch)))
180 (defconst x-long-option-alist
181 '(("--border-width" . "-bw")
185 ("--reverse-video" . "-reverse")
187 ("--internal-border" . "-ib")
188 ("--geometry" . "-geometry")
189 ("--foreground-color" . "-fg")
190 ("--background-color" . "-bg")
191 ("--mouse-color" . "-ms")
192 ("--icon-type" . "-itype")
193 ("--iconic" . "-iconic")
195 ("--cursor-color" . "-cr")
196 ("--vertical-scroll-bars" . "-vb")
197 ("--border-color" . "-bd")))
199 (defconst x-switch-definitions
204 ("-reverse" reverse t)
207 ("-ib" internal-border-width)
208 ("-fg" foreground-color)
209 ("-foreground" foreground-color)
210 ("-bg" background-color)
211 ("-background" background-color)
214 ("-itype" icon-type t)
216 ("-vb" vertical-scroll-bars t)
217 ("-hb" horizontal-scroll-bars t)
219 ("-bw" border-width)))
221 ;; Handler for switches of the form "-switch value" or "-switch".
222 (defun x-handle-switch (switch)
223 (let ((aelt (assoc switch x-switch-definitions)))
226 (setq default-frame-alist
227 (cons (cons (nth 1 aelt) (nth 2 aelt))
228 default-frame-alist))
229 (setq default-frame-alist
230 (cons (cons (nth 1 aelt)
231 (car x-invocation-args))
233 x-invocation-args (cdr x-invocation-args))))))
235 ;; Make -iconic apply only to the initial frame!
236 (defun x-handle-iconic (switch)
237 (setq initial-frame-alist
238 (cons '(visibility . icon) initial-frame-alist)))
240 ;; Handler for switches of the form "-switch n"
241 (defun x-handle-numeric-switch (switch)
242 (let ((aelt (assoc switch x-switch-definitions)))
244 (setq default-frame-alist
245 (cons (cons (nth 1 aelt)
246 (string-to-int (car x-invocation-args)))
249 (cdr x-invocation-args)))))
251 ;; Handle the -xrm option.
252 (defun x-handle-xrm-switch (switch)
253 (or (consp x-invocation-args)
254 (error "%s: missing argument to `%s' option" (invocation-name) switch))
255 (setq x-command-line-resources (car x-invocation-args))
256 (setq x-invocation-args (cdr x-invocation-args)))
258 ;; Handle the geometry option
259 (defun x-handle-geometry (switch)
260 (let ((geo (x-parse-geometry (car x-invocation-args))))
261 (setq initial-frame-alist
262 (append initial-frame-alist
263 (if (or (assq 'left geo) (assq 'top geo))
264 '((user-position . t)))
265 (if (or (assq 'height geo) (assq 'width geo))
268 x-invocation-args (cdr x-invocation-args))))
270 ;; Handle the -name and -rn options. Set the variable x-resource-name
271 ;; to the option's operand; if the switch was `-name', set the name of
272 ;; the initial frame, too.
273 (defun x-handle-name-rn-switch (switch)
274 (or (consp x-invocation-args)
275 (error "%s: missing argument to `%s' option" (invocation-name) switch))
276 (setq x-resource-name (car x-invocation-args)
277 x-invocation-args (cdr x-invocation-args))
278 (if (string= switch "-name")
279 (setq initial-frame-alist (cons (cons 'name x-resource-name)
280 initial-frame-alist))))
282 (defvar x-display-name nil
283 "The display name specifying server and frame.")
285 (defun x-handle-display (switch)
286 (setq x-display-name (car x-invocation-args)
287 x-invocation-args (cdr x-invocation-args)))
289 (defvar x-invocation-args nil)
291 (defun x-handle-args (args)
292 "Process the X-related command line options in ARGS.
293 This is done before the user's startup file is loaded. They are copied to
294 x-invocation args from which the X-related things are extracted, first
295 the switch (e.g., \"-fg\") in the following code, and possible values
296 \(e.g., \"black\") in the option handler code (e.g., x-handle-switch).
297 This returns ARGS with the arguments that have been processed removed."
299 (setq x-invocation-args args
301 (while x-invocation-args
302 (let* ((this-switch (car x-invocation-args))
303 (orig-this-switch this-switch)
304 completion argval aelt)
305 (setq x-invocation-args (cdr x-invocation-args))
306 ;; Check for long options with attached arguments
307 ;; and separate out the attached option argument into argval.
308 (if (string-match "^--[^=]*=" this-switch)
309 (setq argval (substring this-switch (match-end 0))
310 this-switch (substring this-switch 0 (1- (match-end 0)))))
311 (setq completion (try-completion this-switch x-long-option-alist))
312 (if (eq completion t)
313 ;; Exact match for long option.
314 (setq this-switch (cdr (assoc this-switch x-long-option-alist)))
315 (if (stringp completion)
316 (let ((elt (assoc completion x-long-option-alist)))
317 ;; Check for abbreviated long option.
319 (error "Option `%s' is ambiguous" this-switch))
320 (setq this-switch (cdr elt)))
321 ;; Check for a short option.
322 (setq argval nil this-switch orig-this-switch)))
323 (setq aelt (assoc this-switch x-option-alist))
326 (let ((x-invocation-args
327 (cons argval x-invocation-args)))
328 (funcall (cdr aelt) this-switch))
329 (funcall (cdr aelt) this-switch))
330 (setq args (cons this-switch args)))))
331 (setq args (nreverse args)))
339 (defvar x-colors '("aquamarine"
397 "medium spring green"
477 "The full list of X colors from the `rgb.text' file.")
479 (defun x-defined-colors (&optional frame)
480 "Return a list of colors supported for a particular frame.
481 The argument FRAME specifies which frame to try.
482 The value may be different for frames on different X displays."
483 (or frame (setq frame (selected-frame)))
484 (let* ((color-map-colors (mapcar (lambda (clr) (car clr)) w32-color-map))
485 (all-colors (or color-map-colors x-colors))
487 (defined-colors nil))
488 (message "Defining colors...")
490 (setq this-color (car all-colors)
491 all-colors (cdr all-colors))
492 (and (face-color-supported-p frame this-color t)
493 (setq defined-colors (cons this-color defined-colors))))
499 ;;; make f10 activate the real menubar rather than the mini-buffer menu
500 ;;; navigation feature.
501 (global-set-key [f10] (lambda ()
502 (interactive) (w32-send-sys-command ?\xf100)))
504 (defun iconify-or-deiconify-frame ()
505 "Iconify the selected frame, or deiconify if it's currently an icon."
507 (if (eq (cdr (assq 'visibility (frame-parameters))) t)
509 (make-frame-visible)))
511 (substitute-key-definition 'suspend-emacs 'iconify-or-deiconify-frame
515 ;;;; Selections and cut buffers
517 ;;; We keep track of the last text selected here, so we can check the
518 ;;; current selection against it, and avoid passing back our own text
519 ;;; from x-cut-buffer-or-selection-value.
520 (defvar x-last-selected-text nil)
522 ;;; It is said that overlarge strings are slow to put into the cut buffer.
523 ;;; Note this value is overridden below.
524 (defvar x-cut-buffer-max 20000
525 "Max number of characters to put in the cut buffer.")
527 (defvar x-select-enable-clipboard t
528 "Non-nil means cutting and pasting uses the clipboard.
529 This is in addition to the primary selection.")
531 (defun x-select-text (text &optional push)
532 (if x-select-enable-clipboard
533 (w32-set-clipboard-data text))
534 (setq x-last-selected-text text))
536 ;;; Return the value of the current selection.
537 ;;; Consult the selection, then the cut buffer. Treat empty strings
538 ;;; as if they were unset.
539 (defun x-get-selection-value ()
540 (if x-select-enable-clipboard
542 ;; Don't die if x-get-selection signals an error.
544 (setq text (w32-get-clipboard-data))
545 (error (message "w32-get-clipboard-data:%s" c)))
546 (if (string= text "") (setq text nil))
549 ((eq text x-last-selected-text) nil)
550 ((string= text x-last-selected-text)
551 ;; Record the newer string, so subsequent calls can use the 'eq' test.
552 (setq x-last-selected-text text)
555 (setq x-last-selected-text text))))))
557 ;;; Do the actual Windows setup here; the above code just defines
558 ;;; functions and variables that we use now.
560 (setq command-line-args (x-handle-args command-line-args))
562 ;;; Make sure we have a valid resource name.
563 (or (stringp x-resource-name)
565 (setq x-resource-name (invocation-name))
567 ;; Change any . or * characters in x-resource-name to hyphens,
568 ;; so as not to choke when we use it in X resource queries.
569 (while (setq i (string-match "[.*]" x-resource-name))
570 (aset x-resource-name i ?-))))
572 ;; For the benefit of older Emacses (19.27 and earlier) that are sharing
573 ;; the same lisp directory, don't pass the third argument unless we seem
574 ;; to have the multi-display support.
575 (if (fboundp 'x-close-connection)
576 (x-open-connection ""
577 x-command-line-resources
578 ;; Exit Emacs with fatal error if this fails.
580 (x-open-connection ""
581 x-command-line-resources))
583 (setq frame-creation-function 'x-create-frame-with-faces)
585 (setq x-cut-buffer-max (min (- (/ (x-server-max-request-size) 2) 100)
588 ;; W32 expects the menu bar cut and paste commands to use the clipboard.
589 ;; This has ,? to match both on Sunos and on Solaris.
590 (menu-bar-enable-clipboard)
592 ;; Apply a geometry resource to the initial frame. Put it at the end
593 ;; of the alist, so that anything specified on the command line takes
595 (let* ((res-geometry (x-get-resource "geometry" "Geometry"))
599 (setq parsed (x-parse-geometry res-geometry))
600 ;; If the resource specifies a position,
601 ;; call the position and size "user-specified".
602 (if (or (assq 'top parsed) (assq 'left parsed))
603 (setq parsed (cons '(user-position . t)
604 (cons '(user-size . t) parsed))))
605 ;; All geometry parms apply to the initial frame.
606 (setq initial-frame-alist (append initial-frame-alist parsed))
607 ;; The size parms apply to all frames.
608 (if (assq 'height parsed)
609 (setq default-frame-alist
610 (cons (cons 'height (cdr (assq 'height parsed)))
611 default-frame-alist)))
612 (if (assq 'width parsed)
613 (setq default-frame-alist
614 (cons (cons 'width (cdr (assq 'width parsed)))
615 default-frame-alist))))))
617 ;; Check the reverseVideo resource.
618 (let ((case-fold-search t))
619 (let ((rv (x-get-resource "reverseVideo" "ReverseVideo")))
621 (string-match "^\\(true\\|yes\\|on\\)$" rv))
622 (setq default-frame-alist
623 (cons '(reverse . t) default-frame-alist)))))
625 ;; Set x-selection-timeout, measured in milliseconds.
626 (let ((res-selection-timeout
627 (x-get-resource "selectionTimeout" "SelectionTimeout")))
628 (setq x-selection-timeout 20000)
629 (if res-selection-timeout
630 (setq x-selection-timeout (string-to-number res-selection-timeout))))
632 (defun x-win-suspend-error ()
633 (error "Suspending an emacs running under W32 makes no sense"))
634 (add-hook 'suspend-hook 'x-win-suspend-error)
636 ;;; Arrange for the kill and yank functions to set and check the clipboard.
637 (setq interprogram-cut-function 'x-select-text)
638 (setq interprogram-paste-function 'x-get-selection-value)
640 ;;; Turn off window-splitting optimization; w32 is usually fast enough
641 ;;; that this is only annoying.
642 (setq split-window-keep-point t)
644 ;; Don't show the frame name; that's redundant.
645 (setq-default mode-line-frame-identification " ")
647 ;;; Set to a system sound if you want a fancy bell.
648 (set-message-beep 'ok)
650 ;; Remap some functions to call w32 common dialogs
652 (defun internal-face-interactive (what &optional bool)
653 (let* ((fn (intern (concat "face-" what)))
654 (prompt (concat "Set " what " of face"))
655 (face (read-face-name (concat prompt ": ")))
656 (default (if (fboundp fn)
657 (or (funcall fn face (selected-frame))
658 (funcall fn 'default (selected-frame)))))
659 (fn-win (intern (concat (symbol-name window-system) "-select-" what)))
664 (y-or-n-p (concat "Should face " (symbol-name face)
666 (read-string (concat prompt " " (symbol-name face) " to: ")
668 (list face (if (equal value "") nil value))))
670 ;; Redefine the font selection to use the standard W32 dialog
672 (defun mouse-set-font (&rest fonts)
674 (set-default-font (w32-select-font)))
676 ;;; w32-win.el ends here