Commit | Line | Data |
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55535639 | 1 | ;;; pc-win.el --- setup support for `PC windows' (whatever that is) |
ef88bd2d | 2 | |
5fd6d89f | 3 | ;; Copyright (C) 1994, 1996, 1997, 1999, 2001, 2002, 2003, 2004, |
12dc447f | 4 | ;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
ef88bd2d MW |
5 | |
6 | ;; Author: Morten Welinder <terra@diku.dk> | |
9596811a | 7 | ;; Maintainer: FSF |
ef88bd2d MW |
8 | |
9 | ;; This file is part of GNU Emacs. | |
10 | ||
1fecc8fe | 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
ef88bd2d | 12 | ;; it under the terms of the GNU General Public License as published by |
1fecc8fe GM |
13 | ;; the Free Software Foundation, either version 3 of the License, or |
14 | ;; (at your option) any later version. | |
ef88bd2d MW |
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 | |
1fecc8fe | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
2fe590dc | 23 | |
55535639 PJ |
24 | ;;; Commentary: |
25 | ||
cbcc5ad4 EZ |
26 | ;; This file is preloaded into Emacs by loadup.el. The functions in |
27 | ;; this file are then called during startup from startup.el. This | |
28 | ;; means that just loading this file should not have any side effects | |
29 | ;; besides defining functions and variables, and in particular should | |
30 | ;; NOT initialize any window systems. | |
31 | ||
32 | ;; The main entry points to this file's features are msdos-handle-args, | |
33 | ;; msdos-create-frame-with-faces, msdos-initialize-window-system, | |
34 | ;; terminal-init-internal. The last one is not supposed to be called, | |
35 | ;; so it just errors out. | |
36 | ||
2fe590dc EN |
37 | ;;; Code: |
38 | ||
cbcc5ad4 EZ |
39 | (if (not (fboundp 'msdos-remember-default-colors)) |
40 | (error "%s: Loading pc-win.el but not compiled for MS-DOS" | |
41 | (invocation-name))) | |
42 | ||
ef88bd2d MW |
43 | (load "term/internal" nil t) |
44 | ||
73e6adaa DN |
45 | (declare-function msdos-remember-default-colors "msdos.c") |
46 | (declare-function w16-set-clipboard-data "w16select.c") | |
47 | (declare-function w16-get-clipboard-data "w16select.c") | |
92f9269e | 48 | (declare-function msdos-setup-keyboard "internal" (frame)) |
73e6adaa | 49 | |
cbcc5ad4 | 50 | ;;; This was copied from etc/rgb.txt, except that some values were changed |
f795f633 EZ |
51 | ;;; a bit to make them consistent with DOS console colors, and the RGB |
52 | ;;; values were scaled up to 16 bits, as `tty-define-color' requires. | |
53 | ;;; | |
54 | ;;; The mapping between the 16 standard EGA/VGA colors and X color names | |
55 | ;;; was done by running a Unix version of Emacs inside an X client and a | |
56 | ;;; DJGPP-compiled Emacs on the same PC. The names of X colors used to | |
57 | ;;; define the pixel values are shown as comments to each color below. | |
c4d64969 EZ |
58 | ;;; |
59 | ;;; If you want to change the RGB values, keep in mind that various pieces | |
60 | ;;; of Emacs think that a color whose RGB values add up to less than 0.6 of | |
f795f633 | 61 | ;;; the values for WHITE (i.e. less than 117963) are ``dark'', otherwise the |
c4d64969 EZ |
62 | ;;; color is ``light''; see `frame-set-background-mode' in lisp/faces.el for |
63 | ;;; an example. | |
64 | (defvar msdos-color-values | |
1400df92 | 65 | '(("black" 0 0 0 0) |
f795f633 | 66 | ("blue" 1 0 0 52480) ; MediumBlue |
1400df92 EZ |
67 | ("green" 2 8704 35584 8704) ; ForestGreen |
68 | ("cyan" 3 0 52736 53504) ; DarkTurquoise | |
69 | ("red" 4 45568 8704 8704) ; FireBrick | |
70 | ("magenta" 5 35584 0 35584) ; DarkMagenta | |
71 | ("brown" 6 40960 20992 11520) ; Sienna | |
72 | ("lightgray" 7 48640 48640 48640) ; Gray | |
73 | ("darkgray" 8 26112 26112 26112) ; Gray40 | |
74 | ("lightblue" 9 0 0 65535) ; Blue | |
75 | ("lightgreen" 10 0 65535 0) ; Green | |
76 | ("lightcyan" 11 0 65535 65535) ; Cyan | |
77 | ("lightred" 12 65535 0 0) ; Red | |
78 | ("lightmagenta" 13 65535 0 65535) ; Magenta | |
79 | ("yellow" 14 65535 65535 0) ; Yellow | |
80 | ("white" 15 65535 65535 65535)) | |
f795f633 | 81 | "A list of MS-DOS console colors, their indices and 16-bit RGB values.") |
a13b5fad | 82 | |
ef88bd2d MW |
83 | ;; --------------------------------------------------------------------------- |
84 | ;; We want to delay setting frame parameters until the faces are setup | |
85 | (defvar default-frame-alist nil) | |
cbcc5ad4 | 86 | ;(modify-frame-parameters terminal-frame default-frame-alist) |
ef88bd2d MW |
87 | |
88 | (defun msdos-face-setup () | |
7ced34de EZ |
89 | "Initial setup of faces for the MS-DOS display." |
90 | (set-face-foreground 'bold "yellow") | |
91 | (set-face-foreground 'italic "red") | |
92 | (set-face-foreground 'bold-italic "lightred") | |
93 | (set-face-foreground 'underline "white") | |
ef88bd2d MW |
94 | |
95 | (make-face 'msdos-menu-active-face) | |
96 | (make-face 'msdos-menu-passive-face) | |
97 | (make-face 'msdos-menu-select-face) | |
7ced34de EZ |
98 | (set-face-foreground 'msdos-menu-active-face "white") |
99 | (set-face-foreground 'msdos-menu-passive-face "lightgray") | |
100 | (set-face-background 'msdos-menu-active-face "blue") | |
101 | (set-face-background 'msdos-menu-passive-face "blue") | |
102 | (set-face-background 'msdos-menu-select-face "red")) | |
ef88bd2d | 103 | |
f795f633 EZ |
104 | (defun msdos-handle-reverse-video (frame parameters) |
105 | "Handle the reverse-video frame parameter on MS-DOS frames." | |
c88c89a0 EZ |
106 | (when (cdr (or (assq 'reverse parameters) |
107 | (assq 'reverse default-frame-alist))) | |
f795f633 | 108 | (let* ((params (frame-parameters frame)) |
8fcacf13 EZ |
109 | (fg (cdr (assq 'foreground-color params))) |
110 | (bg (cdr (assq 'background-color params)))) | |
111 | (if (equal fg (cdr (assq 'mouse-color params))) | |
f795f633 | 112 | (modify-frame-parameters frame |
8fcacf13 EZ |
113 | (list (cons 'mouse-color bg)))) |
114 | (if (equal fg (cdr (assq 'cursor-color params))) | |
f795f633 | 115 | (modify-frame-parameters frame |
8fcacf13 | 116 | (list (cons 'cursor-color bg))))))) |
f795f633 EZ |
117 | |
118 | ;; This must run after all the default colors are inserted into | |
119 | ;; tty-color-alist, since msdos-handle-reverse-video needs to know the | |
cbcc5ad4 | 120 | ;; actual frame colors. |
f795f633 EZ |
121 | (defun msdos-setup-initial-frame () |
122 | (modify-frame-parameters terminal-frame default-frame-alist) | |
123 | ;; This remembers the screen colors after applying default-frame-alist, | |
124 | ;; so that all subsequent frames could begin with those colors. | |
125 | (msdos-remember-default-colors terminal-frame) | |
126 | (modify-frame-parameters terminal-frame initial-frame-alist) | |
127 | (msdos-handle-reverse-video terminal-frame | |
128 | (frame-parameters terminal-frame)) | |
129 | ||
130 | (frame-set-background-mode terminal-frame) | |
131 | (face-set-after-frame-default terminal-frame)) | |
132 | ||
cbcc5ad4 EZ |
133 | ;; We create frames as if we were a terminal, but without invoking the |
134 | ;; terminal-initialization function. Also, our handling of reverse | |
135 | ;; video is slightly different. | |
136 | (defun msdos-create-frame-with-faces (&optional parameters) | |
137 | "Create an frame on MS-DOS display. | |
138 | Optional frame parameters PARAMETERS specify the frame parameters. | |
139 | Parameters not specified by PARAMETERS are taken from | |
140 | `default-frame-alist'. If either PARAMETERS or `default-frame-alist' | |
141 | contains a `reverse' parameter, handle that. Value is the new frame | |
142 | created." | |
f795f633 EZ |
143 | (let ((frame (make-terminal-frame parameters)) |
144 | success) | |
68a89a25 | 145 | (unwind-protect |
cbcc5ad4 | 146 | (with-selected-frame frame |
f795f633 | 147 | (msdos-handle-reverse-video frame (frame-parameters frame)) |
cbcc5ad4 EZ |
148 | (unless (terminal-parameter frame 'terminal-initted) |
149 | (set-terminal-parameter frame 'terminal-initted t)) | |
68a89a25 EZ |
150 | (frame-set-background-mode frame) |
151 | (face-set-after-frame-default frame) | |
152 | (setq success t)) | |
153 | (unless success (delete-frame frame))) | |
e2f35ede | 154 | frame)) |
9000684d | 155 | |
ef88bd2d | 156 | ;; --------------------------------------------------------------------------- |
a7acbbe4 | 157 | ;; More or less useful imitations of certain X-functions. A lot of the |
ef88bd2d MW |
158 | ;; values returned are questionable, but usually only the form of the |
159 | ;; returned value matters. Also, by the way, recall that `ignore' is | |
160 | ;; a useful function for returning 'nil regardless of argument. | |
161 | ||
162 | ;; From src/xfns.c | |
cee30b8f | 163 | (defun x-list-fonts (pattern &optional face frame maximum width) |
c0e2e77f EZ |
164 | (if (or (null width) (and (numberp width) (= width 1))) |
165 | (list "ms-dos") | |
cee30b8f | 166 | (list "no-such-font"))) |
a259d337 RS |
167 | (defun x-display-pixel-width (&optional frame) (frame-width frame)) |
168 | (defun x-display-pixel-height (&optional frame) (frame-height frame)) | |
c0e2e77f EZ |
169 | (defun x-display-planes (&optional frame) 4) ;bg switched to 16 colors as well |
170 | (defun x-display-color-cells (&optional frame) 16) | |
ef88bd2d MW |
171 | (defun x-server-max-request-size (&optional frame) 1000000) ; ??? |
172 | (defun x-server-vendor (&optional frame) t "GNU") | |
173 | (defun x-server-version (&optional frame) '(1 0 0)) | |
174 | (defun x-display-screens (&optional frame) 1) | |
c0e2e77f EZ |
175 | (defun x-display-mm-height (&optional frame) 245) ; Guess the size of my |
176 | (defun x-display-mm-width (&optional frame) 322) ; monitor, EZ... | |
ef88bd2d MW |
177 | (defun x-display-backing-store (&optional frame) 'not-useful) |
178 | (defun x-display-visual-class (&optional frame) 'static-color) | |
179 | (fset 'x-display-save-under 'ignore) | |
180 | (fset 'x-get-resource 'ignore) | |
a0c712ae | 181 | |
ef88bd2d | 182 | ;; From lisp/term/x-win.el |
f795f633 EZ |
183 | (defvar x-display-name "pc" |
184 | "The display name specifying the MS-DOS display and frame type.") | |
c0e2e77f | 185 | (defvar x-colors (mapcar 'car msdos-color-values) |
bb3a4574 | 186 | "The list of colors available on a PC display under MS-DOS.") |
c4d64969 | 187 | |
8254b6b4 | 188 | ;; From lisp/term/w32-win.el |
c432c362 EZ |
189 | ; |
190 | ;;;; Selections and cut buffers | |
bb3a4574 | 191 | ; |
c432c362 EZ |
192 | ;;; We keep track of the last text selected here, so we can check the |
193 | ;;; current selection against it, and avoid passing back our own text | |
194 | ;;; from x-cut-buffer-or-selection-value. | |
195 | (defvar x-last-selected-text nil) | |
196 | ||
8c717810 EZ |
197 | (defcustom x-select-enable-clipboard t |
198 | "Non-nil means cutting and pasting uses the clipboard. | |
199 | This is the default on this system, since MS-Windows does not | |
200 | support other types of selections." | |
201 | :type 'boolean | |
202 | :group 'killing) | |
c432c362 EZ |
203 | |
204 | (defun x-select-text (text &optional push) | |
db95369b | 205 | (if x-select-enable-clipboard |
8254b6b4 | 206 | (w16-set-clipboard-data text)) |
c432c362 | 207 | (setq x-last-selected-text text)) |
db95369b | 208 | |
c432c362 EZ |
209 | ;;; Return the value of the current selection. |
210 | ;;; Consult the selection, then the cut buffer. Treat empty strings | |
211 | ;;; as if they were unset. | |
212 | (defun x-get-selection-value () | |
db95369b | 213 | (if x-select-enable-clipboard |
c432c362 EZ |
214 | (let (text) |
215 | ;; Don't die if x-get-selection signals an error. | |
216 | (condition-case c | |
8254b6b4 EZ |
217 | (setq text (w16-get-clipboard-data)) |
218 | (error (message "w16-get-clipboard-data:%s" c))) | |
c432c362 EZ |
219 | (if (string= text "") (setq text nil)) |
220 | (cond | |
221 | ((not text) nil) | |
222 | ((eq text x-last-selected-text) nil) | |
223 | ((string= text x-last-selected-text) | |
224 | ;; Record the newer string, so subsequent calls can use the 'eq' test. | |
225 | (setq x-last-selected-text text) | |
226 | nil) | |
227 | (t | |
228 | (setq x-last-selected-text text)))))) | |
229 | ||
ea6401d7 RS |
230 | ;; From lisp/faces.el: we only have one font, so always return |
231 | ;; it, no matter which variety they've asked for. | |
232 | (defun x-frob-font-slant (font which) | |
233 | font) | |
aa32689c | 234 | (make-obsolete 'x-frob-font-slant 'make-face-... "21.1") |
c0e2e77f EZ |
235 | (defun x-frob-font-weight (font which) |
236 | font) | |
aa32689c | 237 | (make-obsolete 'x-frob-font-weight 'make-face-... "21.1") |
ea6401d7 | 238 | |
cee30b8f RS |
239 | ;; From src/fontset.c: |
240 | (fset 'query-fontset 'ignore) | |
241 | ||
e1ddc4b4 RS |
242 | ;; From lisp/term/x-win.el: make iconify-or-deiconify-frame a no-op. |
243 | (fset 'iconify-or-deiconify-frame 'ignore) | |
244 | ||
ef88bd2d MW |
245 | ;; From lisp/frame.el |
246 | (fset 'set-default-font 'ignore) | |
247 | (fset 'set-mouse-color 'ignore) ; We cannot, I think. | |
248 | (fset 'set-cursor-color 'ignore) ; Hardware determined by char under. | |
249 | (fset 'set-border-color 'ignore) ; Not useful. | |
c8a6e3b9 | 250 | |
23608640 EZ |
251 | (defvar msdos-previous-message nil |
252 | "The content of the echo area before help echo was displayed.") | |
253 | ||
254 | (defun msdos-show-help (help) | |
8fc29035 | 255 | "Function installed as `show-help-function' on MS-DOS frames." |
23608640 EZ |
256 | (when (and (not (window-minibuffer-p)) ;Don't overwrite minibuffer contents. |
257 | ;; Don't know how to reproduce it in Elisp: | |
258 | ;; Don't overwrite a keystroke echo. | |
259 | ;; (NILP (echo_message_buffer) || ok_to_overwrite_keystroke_echo) | |
260 | (not cursor-in-echo-area)) ;Don't overwrite a prompt. | |
261 | (cond | |
262 | ((stringp help) | |
263 | (unless msdos-previous-message | |
264 | (setq msdos-previous-message (current-message))) | |
08792c11 | 265 | (let ((message-truncate-lines nil) |
23608640 EZ |
266 | (message-log-max nil)) |
267 | (message "%s" (replace-regexp-in-string "\n" ", " help)))) | |
268 | ((stringp msdos-previous-message) | |
269 | (let ((message-log-max nil)) | |
270 | (message "%s" msdos-previous-message) | |
271 | (setq msdos-previous-message nil))) | |
272 | (t | |
273 | (message nil))))) | |
274 | ||
275 | ||
cbcc5ad4 | 276 | ;; Initialization. |
ef88bd2d | 277 | ;; --------------------------------------------------------------------------- |
cbcc5ad4 EZ |
278 | ;; This function is run, by faces.el:tty-create-frame-with-faces, only |
279 | ;; for the initial frame (on each terminal, but we have only one). | |
280 | ;; This works by setting the `terminal-initted' terminal parameter to | |
281 | ;; this function, the first time `tty-create-frame-with-faces' is | |
282 | ;; called on that terminal. `tty-create-frame-with-faces' is called | |
283 | ;; directly from startup.el and also by `make-frame' through | |
284 | ;; `frame-creation-function-alist'. `make-frame' will call this | |
285 | ;; function if `msdos-create-frame-with-faces' (see below) is not | |
286 | ;; found in `frame-creation-function-alist', which means something is | |
287 | ;; _very_ wrong, because "internal" terminal emulator should not be | |
288 | ;; turned on if our window-system is not `pc'. Therefore, the only | |
289 | ;; Right Thing for us to do here is scream bloody murder. | |
290 | (defun terminal-init-internal () | |
291 | "Terminal initialization function for the MS-DOS \"internal\" terminal. | |
292 | Errors out because it is not supposed to be called, ever." | |
293 | (error "terminal-init-internal called for window-system `%s'" | |
294 | (window-system))) | |
295 | ||
296 | (defun msdos-initialize-window-system () | |
297 | "Initialization function for the `pc' \"window system\"." | |
298 | (or (eq (window-system) 'pc) | |
299 | (error | |
300 | "`msdos-initialize-window-system' called, but window-system is `%s'" | |
301 | (window-system))) | |
302 | ;; First, the keyboard. | |
303 | (msdos-setup-keyboard terminal-frame) ; see internal.el | |
304 | ;; Next, register the default colors. | |
305 | (let* ((colors msdos-color-values) | |
306 | (color (car colors))) | |
307 | (tty-color-clear) | |
308 | (while colors | |
309 | (tty-color-define (car color) (cadr color) (cddr color)) | |
310 | (setq colors (cdr colors) color (car colors)))) | |
311 | ;; Modifying color mappings means realized faces don't | |
312 | ;; use the right colors, so clear them. | |
313 | (clear-face-cache) | |
314 | ;; Now set up some additional faces. | |
315 | (msdos-face-setup) | |
316 | ;; Set up the initial frame. | |
317 | (msdos-setup-initial-frame) | |
23608640 EZ |
318 | ;; Help echo is displayed in the echo area. |
319 | (setq show-help-function 'msdos-show-help) | |
cbcc5ad4 EZ |
320 | ;; We want to delay the codepage-related setup until after user's |
321 | ;; .emacs is processed, because people might define their | |
322 | ;; `dos-codepage-setup-hook' there. | |
323 | (add-hook 'after-init-hook 'dos-codepage-setup) | |
324 | ;; In multibyte mode, we want unibyte buffers to be displayed | |
325 | ;; using the terminal coding system, so that they display | |
326 | ;; correctly on the DOS terminal; in unibyte mode we want to see | |
327 | ;; all 8-bit characters verbatim. In both cases, we want the | |
328 | ;; entire range of 8-bit characters to arrive at our display code | |
329 | ;; verbatim. | |
330 | (standard-display-8bit 127 255) | |
331 | ;; We are fast enough to make this optimization unnecessary. | |
332 | (setq split-window-keep-point t) | |
333 | ;; Arrange for the kill and yank functions to set and check the | |
334 | ;; clipboard. | |
335 | (setq interprogram-cut-function 'x-select-text) | |
336 | (setq interprogram-paste-function 'x-get-selection-value) | |
337 | (menu-bar-enable-clipboard) | |
338 | (run-hooks 'terminal-init-msdos-hook)) | |
339 | ||
340 | ;; frame-creation-function-alist is examined by frame.el:make-frame. | |
341 | (add-to-list 'frame-creation-function-alist | |
342 | '(pc . msdos-create-frame-with-faces)) | |
343 | ;; window-system-initialization-alist is examined by startup.el:command-line. | |
344 | (add-to-list 'window-system-initialization-alist | |
345 | '(pc . msdos-initialize-window-system)) | |
346 | ;; We don't need anything beyond tty-handle-args for handling | |
347 | ;; command-line argument; see startup.el. | |
348 | (add-to-list 'handle-args-function-alist '(pc . tty-handle-args)) | |
349 | ||
350 | ;; --------------------------------------------------------------------------- | |
351 | ||
352 | (provide 'pc-win) | |
092af6d8 | 353 | |
cbee283d | 354 | ;; arch-tag: 5cbdb455-b495-427b-95d0-e417d77d00b4 |
092af6d8 | 355 | ;;; pc-win.el ends here |