code.delx.au - gnu-emacs/blob - lisp/term/w32-win.el

   1 ;;; w32-win.el --- parse switches controlling interface with W32 window system
   2
   3 ;; Copyright (C) 1993, 1994, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   4 ;;   2008, 2009, 2010  Free Software Foundation, Inc.
   5
   6 ;; Author: Kevin Gallo
   7 ;; Keywords: terminals
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;; w32-win.el:  this file is loaded from ../lisp/startup.el when it recognizes
  27 ;; that W32 windows are to be used.  Command line switches are parsed and those
  28 ;; pertaining to W32 are processed and removed from the command line.  The
  29 ;; W32 display is opened and hooks are set for popping up the initial window.
  30
  31 ;; startup.el will then examine startup files, and eventually call the hooks
  32 ;; which create the first window (s).
  33
  34 ;;; Code:
  35 \f
  36
  37 ;; These are the standard X switches from the Xt Initialize.c file of
  38 ;; Release 4.
  39
  40 ;; Command line         Resource Manager string
  41
  42 ;; +rv                  *reverseVideo
  43 ;; +synchronous         *synchronous
  44 ;; -background          *background
  45 ;; -bd                  *borderColor
  46 ;; -bg                  *background
  47 ;; -bordercolor         *borderColor
  48 ;; -borderwidth         .borderWidth
  49 ;; -bw                  .borderWidth
  50 ;; -display             .display
  51 ;; -fg                  *foreground
  52 ;; -fn                  *font
  53 ;; -font                *font
  54 ;; -foreground          *foreground
  55 ;; -geometry            .geometry
  56 ;; -i                   .iconType
  57 ;; -itype               .iconType
  58 ;; -iconic              .iconic
  59 ;; -name                .name
  60 ;; -reverse             *reverseVideo
  61 ;; -rv                  *reverseVideo
  62 ;; -selectionTimeout    .selectionTimeout
  63 ;; -synchronous         *synchronous
  64 ;; -xrm
  65
  66 ;; An alist of X options and the function which handles them.  See
  67 ;; ../startup.el.
  68
  69 ;; (if (not (eq window-system 'w32))
  70 ;;     (error "%s: Loading w32-win.el but not compiled for w32" (invocation-name)))
  71
  72 (require 'frame)
  73 (require 'mouse)
  74 (require 'scroll-bar)
  75 (require 'faces)
  76 (require 'select)
  77 (require 'menu-bar)
  78 (require 'dnd)
  79 (require 'w32-vars)
  80
  81 ;; Keep an obsolete alias for w32-focus-frame and w32-select-font in case
  82 ;; they are used by code outside Emacs.
  83 (define-obsolete-function-alias 'w32-focus-frame 'x-focus-frame "23.1")
  84 (declare-function x-select-font "w32font.c"
  85                   (&optional frame exclude-proportional))
  86 (define-obsolete-function-alias 'w32-select-font 'x-select-font "23.1")
  87
  88 (defvar w32-color-map) ;; defined in w32fns.c
  89
  90 (declare-function w32-send-sys-command "w32fns.c")
  91 (declare-function set-message-beep "w32console.c")
  92
  93 ;; Conditional on new-fontset so bootstrapping works on non-GUI compiles
  94 (if (fboundp 'new-fontset)
  95     (require 'fontset))
  96
  97 ;; The following definition is used for debugging scroll bar events.
  98 ;(defun w32-handle-scroll-bar-event (event) (interactive "e") (princ event))
  99
 100 ;; (defun w32-drag-n-drop-debug (event)
 101 ;;   "Print the drag-n-drop EVENT in a readable form."
 102 ;;   (interactive "e")
 103 ;;   (princ event))
 104
 105 (defun w32-drag-n-drop (event)
 106   "Edit the files listed in the drag-n-drop EVENT.
 107 Switch to a buffer editing the last file dropped."
 108   (interactive "e")
 109   (save-excursion
 110     ;; Make sure the drop target has positive co-ords
 111     ;; before setting the selected frame - otherwise it
 112     ;; won't work.  <skx@tardis.ed.ac.uk>
 113     (let* ((window (posn-window (event-start event)))
 114            (coords (posn-x-y (event-start event)))
 115            (x (car coords))
 116            (y (cdr coords)))
 117       (if (and (> x 0) (> y 0))
 118           (set-frame-selected-window nil window))
 119       (mapc (lambda (file-name)
 120                 (let ((f (subst-char-in-string ?\\ ?/ file-name))
 121                       (coding (or file-name-coding-system
 122                                   default-file-name-coding-system)))
 123                   (setq file-name
 124                         (mapconcat 'url-hexify-string
 125                                    (split-string (encode-coding-string f coding)
 126                                                  "/")
 127                                    "/")))
 128                 (dnd-handle-one-url window 'private
 129                                     (concat "file:" file-name)))
 130                 (car (cdr (cdr event)))))
 131   (raise-frame)))
 132
 133 (defun w32-drag-n-drop-other-frame (event)
 134   "Edit the files listed in the drag-n-drop EVENT, in other frames.
 135 May create new frames, or reuse existing ones.  The frame editing
 136 the last file dropped is selected."
 137   (interactive "e")
 138   (mapcar 'find-file-other-frame (car (cdr (cdr event)))))
 139
 140 ;; Bind the drag-n-drop event.
 141 (global-set-key [drag-n-drop] 'w32-drag-n-drop)
 142 (global-set-key [C-drag-n-drop] 'w32-drag-n-drop-other-frame)
 143
 144 ;; Keyboard layout/language change events
 145 ;; For now ignore language-change events; in the future
 146 ;; we should switch the Emacs Input Method to match the
 147 ;; new layout/language selected by the user.
 148 (global-set-key [language-change] 'ignore)
 149
 150 (defvar x-resource-name)
 151
 152 \f
 153 ;;;; Function keys
 154
 155  ;;; make f10 activate the real menubar rather than the mini-buffer menu
 156  ;;; navigation feature.
 157  (defun w32-menu-bar-open (&optional frame)
 158    "Start key navigation of the menu bar in FRAME.
 159
 160 This initially activates the first menu-bar item, and you can then navigate
 161 with the arrow keys, select a menu entry with the Return key or cancel with
 162 the Escape key.  If FRAME has no menu bar, this function does nothing.
 163
 164 If FRAME is nil or not given, use the selected frame.
 165 If FRAME does not have the menu bar enabled, display a text menu using
 166 `tmm-menubar'."
 167    (interactive "i")
 168    (if menu-bar-mode
 169        (w32-send-sys-command ?\xf100 frame)
 170      (with-selected-frame (or frame (selected-frame))
 171        (tmm-menubar))))
 172 \f
 173
 174 ;; W32 systems have different fonts than commonly found on X, so
 175 ;; we define our own standard fontset here.
 176 (defvar w32-standard-fontset-spec
 177  "-*-Courier New-normal-r-*-*-13-*-*-*-c-*-fontset-standard"
 178  "String of fontset spec of the standard fontset.
 179 This defines a fontset consisting of the Courier New variations for
 180 European languages which are distributed with Windows as
 181 \"Multilanguage Support\".
 182
 183 See the documentation of `create-fontset-from-fontset-spec' for the format.")
 184
 185 (defun x-win-suspend-error ()
 186   "Report an error when a suspend is attempted."
 187   (error "Suspending an Emacs running under W32 makes no sense"))
 188
 189 (defvar dynamic-library-alist)
 190
 191 ;;; Set default known names for external libraries
 192 (setq dynamic-library-alist
 193       '((xpm "libxpm.dll" "xpm4.dll" "libXpm-nox4.dll")
 194         (png "libpng12d.dll" "libpng12.dll" "libpng.dll"
 195          ;; these are libpng 1.2.8 from GTK+
 196          "libpng13d.dll" "libpng13.dll")
 197         (jpeg "jpeg62.dll" "libjpeg.dll" "jpeg-62.dll" "jpeg.dll")
 198         (tiff "libtiff3.dll" "libtiff.dll")
 199         (gif "giflib4.dll" "libungif4.dll" "libungif.dll")
 200         (svg "librsvg-2-2.dll")
 201         (gdk-pixbuf "libgdk_pixbuf-2.0-0.dll")
 202         (glib "libglib-2.0-0.dll")
 203         (gobject "libgobject-2.0-0.dll")))
 204
 205 ;;; multi-tty support
 206 (defvar w32-initialized nil
 207   "Non-nil if the w32 window system has been initialized.")
 208
 209 (declare-function x-open-connection "w32fns.c"
 210                   (display &optional xrm-string must-succeed))
 211 (declare-function create-fontset-from-fontset-spec "fontset"
 212                   (fontset-spec &optional style-variant noerror))
 213 (declare-function create-fontset-from-x-resource "fontset" ())
 214 (declare-function x-get-resource "frame.c"
 215                   (attribute class &optional component subclass))
 216 (declare-function x-handle-args "common-win" (args))
 217 (declare-function x-parse-geometry "frame.c" (string))
 218 (defvar x-command-line-resources)
 219
 220 (defun w32-initialize-window-system ()
 221   "Initialize Emacs for W32 GUI frames."
 222
 223   ;; Do the actual Windows setup here; the above code just defines
 224   ;; functions and variables that we use now.
 225
 226   (setq command-line-args (x-handle-args command-line-args))
 227
 228   ;; Make sure we have a valid resource name.
 229   (or (stringp x-resource-name)
 230       (setq x-resource-name
 231             ;; Change any . or * characters in x-resource-name to hyphens,
 232             ;; so as not to choke when we use it in X resource queries.
 233             (replace-regexp-in-string "[.*]" "-" (invocation-name))))
 234
 235   (x-open-connection "" x-command-line-resources
 236                      ;; Exit with a fatal error if this fails and we
 237                      ;; are the initial display
 238                      (eq initial-window-system 'w32))
 239
 240   ;; Create the default fontset.
 241   (create-default-fontset)
 242   ;; Create the standard fontset.
 243   (condition-case err
 244       (create-fontset-from-fontset-spec w32-standard-fontset-spec t)
 245     (error (display-warning
 246             'initialization
 247             (format "Creation of the standard fontset failed: %s" err)
 248             :error)))
 249   ;; Create fontset specified in X resources "Fontset-N" (N is 0, 1,...).
 250   (create-fontset-from-x-resource)
 251
 252   ;; Apply a geometry resource to the initial frame.  Put it at the end
 253   ;; of the alist, so that anything specified on the command line takes
 254   ;; precedence.
 255   (let* ((res-geometry (x-get-resource "geometry" "Geometry"))
 256          parsed)
 257     (if res-geometry
 258         (progn
 259           (setq parsed (x-parse-geometry res-geometry))
 260           ;; If the resource specifies a position,
 261           ;; call the position and size "user-specified".
 262           (if (or (assq 'top parsed) (assq 'left parsed))
 263               (setq parsed (cons '(user-position . t)
 264                                  (cons '(user-size . t) parsed))))
 265           ;; All geometry parms apply to the initial frame.
 266           (setq initial-frame-alist (append initial-frame-alist parsed))
 267           ;; The size parms apply to all frames.
 268           (if (and (assq 'height parsed)
 269                    (not (assq 'height default-frame-alist)))
 270               (setq default-frame-alist
 271                     (cons (cons 'height (cdr (assq 'height parsed)))
 272                           default-frame-alist))
 273           (if (and (assq 'width parsed)
 274                    (not (assq 'width default-frame-alist)))
 275               (setq default-frame-alist
 276                     (cons (cons 'width (cdr (assq 'width parsed)))
 277                           default-frame-alist)))))))
 278
 279   ;; Check the reverseVideo resource.
 280   (let ((case-fold-search t))
 281     (let ((rv (x-get-resource "reverseVideo" "ReverseVideo")))
 282       (if (and rv (string-match "^\\(true\\|yes\\|on\\)$" rv))
 283           (setq default-frame-alist
 284                 (cons '(reverse . t) default-frame-alist)))))
 285
 286   ;; Don't let Emacs suspend under w32 gui
 287   (add-hook 'suspend-hook 'x-win-suspend-error)
 288
 289   ;; Turn off window-splitting optimization; w32 is usually fast enough
 290   ;; that this is only annoying.
 291   (setq split-window-keep-point t)
 292
 293   ;; W32 expects the menu bar cut and paste commands to use the clipboard.
 294   (menu-bar-enable-clipboard)
 295
 296   ;; Don't show the frame name; that's redundant.
 297   (setq-default mode-line-frame-identification "  ")
 298
 299   ;; Set to a system sound if you want a fancy bell.
 300   (set-message-beep 'ok)
 301   (setq w32-initialized t))
 302
 303 (add-to-list 'handle-args-function-alist '(w32 . x-handle-args))
 304 (add-to-list 'frame-creation-function-alist '(w32 . x-create-frame-with-faces))
 305 (add-to-list 'window-system-initialization-alist '(w32 . w32-initialize-window-system))
 306
 307 (provide 'w32-win)
 308
 309 ;;; w32-win.el ends here