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1 ;;; w32-win.el --- parse switches controlling interface with W32 window system.
2
3 ;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
4
5 ;; Author: Kevin Gallo
6 ;; Keywords: terminals
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 the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
24
25 ;;; Commentary:
26
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.
31
32 ;; startup.el will then examine startup files, and eventually call the hooks
33 ;; which create the first window (s).
34
35 ;;; Code:
36 \f
37
38 ;; These are the standard X switches from the Xt Initialize.c file of
39 ;; Release 4.
40
41 ;; Command line Resource Manager string
42
43 ;; +rv *reverseVideo
44 ;; +synchronous *synchronous
45 ;; -background *background
46 ;; -bd *borderColor
47 ;; -bg *background
48 ;; -bordercolor *borderColor
49 ;; -borderwidth .borderWidth
50 ;; -bw .borderWidth
51 ;; -display .display
52 ;; -fg *foreground
53 ;; -fn *font
54 ;; -font *font
55 ;; -foreground *foreground
56 ;; -geometry .geometry
57 ;; -i .iconType
58 ;; -itype .iconType
59 ;; -iconic .iconic
60 ;; -name .name
61 ;; -reverse *reverseVideo
62 ;; -rv *reverseVideo
63 ;; -selectionTimeout .selectionTimeout
64 ;; -synchronous *synchronous
65 ;; -xrm
66
67 ;; An alist of X options and the function which handles them. See
68 ;; ../startup.el.
69
70 (if (not (eq window-system 'w32))
71 (error "%s: Loading w32-win.el but not compiled for w32" (invocation-name)))
72
73 (require 'frame)
74 (require 'mouse)
75 (require 'scroll-bar)
76 (require 'faces)
77 (require 'select)
78 (require 'menu-bar)
79
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.
83
84 (defun w32-handle-scroll-bar-event (event)
85 "Handle W32 scroll bar events to do normal Window style scrolling."
86 (interactive "e")
87 (let ((old-window (selected-window)))
88 (unwind-protect
89 (let* ((position (event-start event))
90 (window (nth 0 position))
91 (portion-whole (nth 2 position))
92 (bar-part (nth 4 position)))
93 (save-excursion
94 (select-window window)
95 (cond
96 ((eq bar-part 'up)
97 (goto-char (window-start window))
98 (scroll-down 1))
99 ((eq bar-part 'above-handle)
100 (scroll-down))
101 ((eq bar-part 'handle)
102 (scroll-bar-maybe-set-window-start event))
103 ((eq bar-part 'below-handle)
104 (scroll-up))
105 ((eq bar-part 'down)
106 (goto-char (window-start window))
107 (scroll-up 1))
108 )))
109 (select-window old-window))))
110
111 ;; The following definition is used for debugging.
112 ;(defun w32-handle-scroll-bar-event (event) (interactive "e") (princ event))
113
114 (global-set-key [vertical-scroll-bar mouse-1] 'w32-handle-scroll-bar-event)
115
116 ;; (scroll-bar-mode nil)
117
118 (defvar mouse-wheel-scroll-amount 4
119 "*Number of lines to scroll per click of the mouse wheel.")
120
121 (defun mouse-wheel-scroll-line (event)
122 "Scroll the current buffer by `mouse-wheel-scroll-amount'."
123 (interactive "e")
124 (condition-case nil
125 (if (< (car (cdr (cdr event))) 0)
126 (scroll-up mouse-wheel-scroll-amount)
127 (scroll-down mouse-wheel-scroll-amount))
128 (error nil)))
129
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)))
133
134 (defun mouse-wheel-scroll-screen (event)
135 "Scroll the current buffer by `mouse-wheel-scroll-amount'."
136 (interactive "e")
137 (condition-case nil
138 (if (< (car (cdr (cdr event))) 0)
139 (scroll-up)
140 (scroll-down))
141 (error nil)))
142
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)
146
147 (defvar x-invocation-args)
148
149 (defvar x-command-line-resources nil)
150
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)))
179
180 (defconst x-long-option-alist
181 '(("--border-width" . "-bw")
182 ("--display" . "-d")
183 ("--name" . "-name")
184 ("--title" . "-T")
185 ("--reverse-video" . "-reverse")
186 ("--font" . "-font")
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")
194 ("--xrm" . "-xrm")
195 ("--cursor-color" . "-cr")
196 ("--vertical-scroll-bars" . "-vb")
197 ("--border-color" . "-bd")))
198
199 (defconst x-switch-definitions
200 '(("-name" name)
201 ("-T" name)
202 ("-r" reverse t)
203 ("-rv" reverse t)
204 ("-reverse" reverse t)
205 ("-fn" font)
206 ("-font" font)
207 ("-ib" internal-border-width)
208 ("-fg" foreground-color)
209 ("-foreground" foreground-color)
210 ("-bg" background-color)
211 ("-background" background-color)
212 ("-ms" mouse-color)
213 ("-cr" cursor-color)
214 ("-itype" icon-type t)
215 ("-i" icon-type t)
216 ("-vb" vertical-scroll-bars t)
217 ("-hb" horizontal-scroll-bars t)
218 ("-bd" border-color)
219 ("-bw" border-width)))
220
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)))
224 (if aelt
225 (if (nth 2 aelt)
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))
232 default-frame-alist)
233 x-invocation-args (cdr x-invocation-args))))))
234
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)))
239
240 ;; Handler for switches of the form "-switch n"
241 (defun x-handle-numeric-switch (switch)
242 (let ((aelt (assoc switch x-switch-definitions)))
243 (if aelt
244 (setq default-frame-alist
245 (cons (cons (nth 1 aelt)
246 (string-to-int (car x-invocation-args)))
247 default-frame-alist)
248 x-invocation-args
249 (cdr x-invocation-args)))))
250
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)))
257
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))
266 '((user-size . t)))
267 geo)
268 x-invocation-args (cdr x-invocation-args))))
269
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))))
281
282 (defvar x-display-name nil
283 "The display name specifying server and frame.")
284
285 (defun x-handle-display (switch)
286 (setq x-display-name (car x-invocation-args)
287 x-invocation-args (cdr x-invocation-args)))
288
289 (defvar x-invocation-args nil)
290
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."
298 (message "%s" args)
299 (setq x-invocation-args args
300 args nil)
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.
318 (or elt
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))
324 (if aelt
325 (if argval
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)))
332
333
334 \f
335 ;;
336 ;; Available colors
337 ;;
338
339 (defvar x-colors '("aquamarine"
340 "Aquamarine"
341 "medium aquamarine"
342 "MediumAquamarine"
343 "black"
344 "Black"
345 "blue"
346 "Blue"
347 "cadet blue"
348 "CadetBlue"
349 "cornflower blue"
350 "CornflowerBlue"
351 "dark slate blue"
352 "DarkSlateBlue"
353 "light blue"
354 "LightBlue"
355 "light steel blue"
356 "LightSteelBlue"
357 "medium blue"
358 "MediumBlue"
359 "medium slate blue"
360 "MediumSlateBlue"
361 "midnight blue"
362 "MidnightBlue"
363 "navy blue"
364 "NavyBlue"
365 "navy"
366 "Navy"
367 "sky blue"
368 "SkyBlue"
369 "slate blue"
370 "SlateBlue"
371 "steel blue"
372 "SteelBlue"
373 "coral"
374 "Coral"
375 "cyan"
376 "Cyan"
377 "firebrick"
378 "Firebrick"
379 "brown"
380 "Brown"
381 "gold"
382 "Gold"
383 "goldenrod"
384 "Goldenrod"
385 "green"
386 "Green"
387 "dark green"
388 "DarkGreen"
389 "dark olive green"
390 "DarkOliveGreen"
391 "forest green"
392 "ForestGreen"
393 "lime green"
394 "LimeGreen"
395 "medium sea green"
396 "MediumSeaGreen"
397 "medium spring green"
398 "MediumSpringGreen"
399 "pale green"
400 "PaleGreen"
401 "sea green"
402 "SeaGreen"
403 "spring green"
404 "SpringGreen"
405 "yellow green"
406 "YellowGreen"
407 "dark slate grey"
408 "DarkSlateGrey"
409 "dark slate gray"
410 "DarkSlateGray"
411 "dim grey"
412 "DimGrey"
413 "dim gray"
414 "DimGray"
415 "light grey"
416 "LightGrey"
417 "light gray"
418 "LightGray"
419 "gray"
420 "grey"
421 "Gray"
422 "Grey"
423 "khaki"
424 "Khaki"
425 "magenta"
426 "Magenta"
427 "maroon"
428 "Maroon"
429 "orange"
430 "Orange"
431 "orchid"
432 "Orchid"
433 "dark orchid"
434 "DarkOrchid"
435 "medium orchid"
436 "MediumOrchid"
437 "pink"
438 "Pink"
439 "plum"
440 "Plum"
441 "red"
442 "Red"
443 "indian red"
444 "IndianRed"
445 "medium violet red"
446 "MediumVioletRed"
447 "orange red"
448 "OrangeRed"
449 "violet red"
450 "VioletRed"
451 "salmon"
452 "Salmon"
453 "sienna"
454 "Sienna"
455 "tan"
456 "Tan"
457 "thistle"
458 "Thistle"
459 "turquoise"
460 "Turquoise"
461 "dark turquoise"
462 "DarkTurquoise"
463 "medium turquoise"
464 "MediumTurquoise"
465 "violet"
466 "Violet"
467 "blue violet"
468 "BlueViolet"
469 "wheat"
470 "Wheat"
471 "white"
472 "White"
473 "yellow"
474 "Yellow"
475 "green yellow"
476 "GreenYellow")
477 "The full list of X colors from the `rgb.text' file.")
478
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))
486 (this-color nil)
487 (defined-colors nil))
488 (message "Defining colors...")
489 (while all-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))))
494 defined-colors))
495 \f
496 \f
497 ;;;; Function keys
498
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)))
503
504 (defun iconify-or-deiconify-frame ()
505 "Iconify the selected frame, or deiconify if it's currently an icon."
506 (interactive)
507 (if (eq (cdr (assq 'visibility (frame-parameters))) t)
508 (iconify-frame)
509 (make-frame-visible)))
510
511 (substitute-key-definition 'suspend-emacs 'iconify-or-deiconify-frame
512 global-map)
513
514 \f
515 ;;;; Selections and cut buffers
516
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)
521
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.")
526
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.")
530
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))
535
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
541 (let (text)
542 ;; Don't die if x-get-selection signals an error.
543 (condition-case c
544 (setq text (w32-get-clipboard-data))
545 (error (message "w32-get-clipboard-data:%s" c)))
546 (if (string= text "") (setq text nil))
547 (cond
548 ((not 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)
553 nil)
554 (t
555 (setq x-last-selected-text text))))))
556 \f
557 ;;; Do the actual Windows setup here; the above code just defines
558 ;;; functions and variables that we use now.
559
560 (setq command-line-args (x-handle-args command-line-args))
561
562 ;;; Make sure we have a valid resource name.
563 (or (stringp x-resource-name)
564 (let (i)
565 (setq x-resource-name (invocation-name))
566
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 ?-))))
571
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.
579 t)
580 (x-open-connection ""
581 x-command-line-resources))
582
583 (setq frame-creation-function 'x-create-frame-with-faces)
584
585 (setq x-cut-buffer-max (min (- (/ (x-server-max-request-size) 2) 100)
586 x-cut-buffer-max))
587
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)
591
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
594 ;; precedence.
595 (let* ((res-geometry (x-get-resource "geometry" "Geometry"))
596 parsed)
597 (if res-geometry
598 (progn
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))))))
616
617 ;; Check the reverseVideo resource.
618 (let ((case-fold-search t))
619 (let ((rv (x-get-resource "reverseVideo" "ReverseVideo")))
620 (if (and rv
621 (string-match "^\\(true\\|yes\\|on\\)$" rv))
622 (setq default-frame-alist
623 (cons '(reverse . t) default-frame-alist)))))
624
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))))
631
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)
635
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)
639
640 ;;; Turn off window-splitting optimization; w32 is usually fast enough
641 ;;; that this is only annoying.
642 (setq split-window-keep-point t)
643
644 ;; Don't show the frame name; that's redundant.
645 (setq-default mode-line-frame-identification " ")
646
647 ;;; Set to a system sound if you want a fancy bell.
648 (set-message-beep 'ok)
649
650 ;; Remap some functions to call w32 common dialogs
651
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)))
660 (value
661 (if (fboundp fn-win)
662 (funcall fn-win)
663 (if bool
664 (y-or-n-p (concat "Should face " (symbol-name face)
665 " be " bool "? "))
666 (read-string (concat prompt " " (symbol-name face) " to: ")
667 default)))))
668 (list face (if (equal value "") nil value))))
669
670 ;; Redefine the font selection to use the standard W32 dialog
671
672 (defun mouse-set-font (&rest fonts)
673 (interactive)
674 (set-default-font (w32-select-font)))
675
676 ;;; w32-win.el ends here