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465fceed ER |
1 | ;;; faces.el --- Lisp interface to the c "face" structure |
2 | ||
19ae9866 | 3 | ;; Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. |
465fceed ER |
4 | |
5 | ;; This file is part of GNU Emacs. | |
6 | ||
7 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
8 | ;; it under the terms of the GNU General Public License as published by | |
9 | ;; the Free Software Foundation; either version 2, or (at your option) | |
10 | ;; any later version. | |
11 | ||
12 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
13 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | ;; GNU General Public License for more details. | |
16 | ||
17 | ;; You should have received a copy of the GNU General Public License | |
18 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
19 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | ||
21 | ;;; Commentary: | |
22 | ||
23 | ;; Mostly derived from Lucid. | |
24 | ||
25 | ;;; Code: | |
26 | ||
39b3b754 RS |
27 | (eval-when-compile |
28 | ;; These used to be defsubsts, now they're subrs. Avoid losing if we're | |
29 | ;; being compiled with an old Emacs that still has defsubrs in it. | |
30 | (put 'face-name 'byte-optimizer nil) | |
31 | (put 'face-id 'byte-optimizer nil) | |
32 | (put 'face-font 'byte-optimizer nil) | |
33 | (put 'face-foreground 'byte-optimizer nil) | |
34 | (put 'face-background 'byte-optimizer nil) | |
35 | (put 'face-stipple 'byte-optimizer nil) | |
36 | (put 'face-underline-p 'byte-optimizer nil) | |
37 | (put 'set-face-font 'byte-optimizer nil) | |
38 | (put 'set-face-foreground 'byte-optimizer nil) | |
39 | (put 'set-face-background 'byte-optimizer nil) | |
40 | (put 'set-stipple 'byte-optimizer nil) | |
41 | (put 'set-face-underline-p 'byte-optimizer nil)) | |
bdda3754 JB |
42 | \f |
43 | ;;;; Functions for manipulating face vectors. | |
44 | ||
45 | ;;; A face vector is a vector of the form: | |
72418504 | 46 | ;;; [face NAME ID FONT FOREGROUND BACKGROUND STIPPLE UNDERLINE] |
bdda3754 JB |
47 | |
48 | ;;; Type checkers. | |
465fceed ER |
49 | (defsubst internal-facep (x) |
50 | (and (vectorp x) (= (length x) 8) (eq (aref x 0) 'face))) | |
51 | ||
52 | (defmacro internal-check-face (face) | |
53 | (` (while (not (internal-facep (, face))) | |
54 | (setq (, face) (signal 'wrong-type-argument (list 'internal-facep (, face))))))) | |
55 | ||
bdda3754 | 56 | ;;; Accessors. |
feaad827 | 57 | (defun face-name (face) |
465fceed ER |
58 | "Return the name of face FACE." |
59 | (aref (internal-get-face face) 1)) | |
60 | ||
feaad827 | 61 | (defun face-id (face) |
465fceed ER |
62 | "Return the internal ID number of face FACE." |
63 | (aref (internal-get-face face) 2)) | |
64 | ||
feaad827 | 65 | (defun face-font (face &optional frame) |
465fceed ER |
66 | "Return the font name of face FACE, or nil if it is unspecified. |
67 | If the optional argument FRAME is given, report on face FACE in that frame. | |
f3f31ccf RS |
68 | If FRAME is t, report on the defaults for face FACE (for new frames). |
69 | The font default for a face is either nil, or a list | |
70 | of the form (bold), (italic) or (bold italic). | |
71 | If FRAME is omitted or nil, use the selected frame." | |
465fceed ER |
72 | (aref (internal-get-face face frame) 3)) |
73 | ||
feaad827 | 74 | (defun face-foreground (face &optional frame) |
465fceed ER |
75 | "Return the foreground color name of face FACE, or nil if unspecified. |
76 | If the optional argument FRAME is given, report on face FACE in that frame. | |
f3f31ccf RS |
77 | If FRAME is t, report on the defaults for face FACE (for new frames). |
78 | If FRAME is omitted or nil, use the selected frame." | |
465fceed ER |
79 | (aref (internal-get-face face frame) 4)) |
80 | ||
feaad827 | 81 | (defun face-background (face &optional frame) |
465fceed ER |
82 | "Return the background color name of face FACE, or nil if unspecified. |
83 | If the optional argument FRAME is given, report on face FACE in that frame. | |
f3f31ccf RS |
84 | If FRAME is t, report on the defaults for face FACE (for new frames). |
85 | If FRAME is omitted or nil, use the selected frame." | |
465fceed ER |
86 | (aref (internal-get-face face frame) 5)) |
87 | ||
feaad827 | 88 | (defun face-stipple (face &optional frame) |
72418504 RS |
89 | "Return the stipple pixmap name of face FACE, or nil if unspecified. |
90 | If the optional argument FRAME is given, report on face FACE in that frame. | |
91 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
92 | If FRAME is omitted or nil, use the selected frame." | |
93 | (aref (internal-get-face face frame) 6)) | |
94 | ||
95 | (defalias 'face-background-pixmap 'face-stipple) | |
465fceed | 96 | |
feaad827 | 97 | (defun face-underline-p (face &optional frame) |
465fceed ER |
98 | "Return t if face FACE is underlined. |
99 | If the optional argument FRAME is given, report on face FACE in that frame. | |
f3f31ccf RS |
100 | If FRAME is t, report on the defaults for face FACE (for new frames). |
101 | If FRAME is omitted or nil, use the selected frame." | |
465fceed ER |
102 | (aref (internal-get-face face frame) 7)) |
103 | ||
bdda3754 JB |
104 | \f |
105 | ;;; Mutators. | |
465fceed | 106 | |
feaad827 | 107 | (defun set-face-font (face font &optional frame) |
465fceed ER |
108 | "Change the font of face FACE to FONT (a string). |
109 | If the optional FRAME argument is provided, change only | |
110 | in that frame; otherwise change each frame." | |
111 | (interactive (internal-face-interactive "font")) | |
e17dbede | 112 | (if (stringp font) (setq font (x-resolve-font-name font 'default frame))) |
10d89673 | 113 | (internal-set-face-1 face 'font font 3 frame)) |
465fceed | 114 | |
feaad827 | 115 | (defun set-face-foreground (face color &optional frame) |
465fceed ER |
116 | "Change the foreground color of face FACE to COLOR (a string). |
117 | If the optional FRAME argument is provided, change only | |
118 | in that frame; otherwise change each frame." | |
119 | (interactive (internal-face-interactive "foreground")) | |
f0138172 | 120 | (internal-set-face-1 face 'foreground color 4 frame)) |
465fceed | 121 | |
feaad827 | 122 | (defun set-face-background (face color &optional frame) |
465fceed ER |
123 | "Change the background color of face FACE to COLOR (a string). |
124 | If the optional FRAME argument is provided, change only | |
125 | in that frame; otherwise change each frame." | |
126 | (interactive (internal-face-interactive "background")) | |
ee09252a RS |
127 | ;; For a specific frame, use gray stipple instead of gray color |
128 | ;; if the display does not support a gray color. | |
129 | (if (and frame (not (eq frame t)) | |
130 | (member color '("gray" "gray1" "gray3")) | |
0fd8a324 RS |
131 | (not (x-display-color-p frame)) |
132 | (not (x-display-grayscale-p frame))) | |
ee09252a RS |
133 | (set-face-stipple face color frame) |
134 | (internal-set-face-1 face 'background color 5 frame))) | |
465fceed | 135 | |
feaad827 | 136 | (defun set-face-stipple (face name &optional frame) |
72418504 RS |
137 | "Change the stipple pixmap of face FACE to PIXMAP. |
138 | PIXMAP should be a string, the name of a file of pixmap data. | |
139 | The directories listed in the `x-bitmap-file-path' variable are searched. | |
465fceed | 140 | |
72418504 RS |
141 | Alternatively, PIXMAP may be a list of the form (WIDTH HEIGHT DATA) |
142 | where WIDTH and HEIGHT are the size in pixels, | |
143 | and DATA is a string, containing the raw bits of the bitmap. | |
465fceed | 144 | |
72418504 RS |
145 | If the optional FRAME argument is provided, change only |
146 | in that frame; otherwise change each frame." | |
147 | (interactive (internal-face-interactive "stipple")) | |
148 | (internal-set-face-1 face 'background-pixmap name 6 frame)) | |
149 | ||
150 | (defalias 'set-face-background-pixmap 'set-face-stipple) | |
465fceed | 151 | |
feaad827 | 152 | (defun set-face-underline-p (face underline-p &optional frame) |
465fceed ER |
153 | "Specify whether face FACE is underlined. (Yes if UNDERLINE-P is non-nil.) |
154 | If the optional FRAME argument is provided, change only | |
155 | in that frame; otherwise change each frame." | |
156 | (interactive (internal-face-interactive "underline-p" "underlined")) | |
f0138172 | 157 | (internal-set-face-1 face 'underline underline-p 7 frame)) |
1c0a8710 RS |
158 | \f |
159 | (defun modify-face (face foreground background bold-p italic-p underline-p) | |
160 | "Change the display attributes for face FACE. | |
161 | FOREGROUND and BACKGROUND should be color strings. (Default color if nil.) | |
162 | BOLD-P, ITALIC-P, and UNDERLINE-P specify whether the face should be set bold, | |
163 | in italic, and underlined, respectively. (Yes if non-nil.) | |
164 | If called interactively, prompts for a face and face attributes." | |
165 | (interactive | |
166 | (let* ((completion-ignore-case t) | |
167 | (face (symbol-name (read-face-name "Face: "))) | |
168 | (foreground (completing-read | |
169 | (format "Face %s set foreground (default %s): " face | |
170 | (downcase (or (face-foreground (intern face)) | |
171 | "foreground"))) | |
172 | (mapcar 'list (x-defined-colors)))) | |
173 | (background (completing-read | |
174 | (format "Face %s set background (default %s): " face | |
175 | (downcase (or (face-background (intern face)) | |
176 | "background"))) | |
177 | (mapcar 'list (x-defined-colors)))) | |
178 | (bold-p (y-or-n-p (concat "Face " face ": set bold "))) | |
179 | (italic-p (y-or-n-p (concat "Face " face ": set italic "))) | |
180 | (underline-p (y-or-n-p (concat "Face " face ": set underline ")))) | |
181 | (if (string-equal background "") (setq background nil)) | |
182 | (if (string-equal foreground "") (setq foreground nil)) | |
183 | (message "Face %s: %s" face | |
184 | (mapconcat 'identity | |
185 | (delq nil | |
186 | (list (and foreground (concat (downcase foreground) " foreground")) | |
187 | (and background (concat (downcase background) " background")) | |
188 | (and bold-p "bold") (and italic-p "italic") | |
189 | (and underline-p "underline"))) ", ")) | |
190 | (list (intern face) foreground background bold-p italic-p underline-p))) | |
191 | (condition-case nil (set-face-foreground face foreground) (error nil)) | |
192 | (condition-case nil (set-face-background face background) (error nil)) | |
193 | (funcall (if bold-p 'make-face-bold 'make-face-unbold) face nil t) | |
194 | (funcall (if italic-p 'make-face-italic 'make-face-unitalic) face nil t) | |
195 | (set-face-underline-p face underline-p) | |
196 | (and (interactive-p) (redraw-display))) | |
bdda3754 JB |
197 | \f |
198 | ;;;; Associating face names (symbols) with their face vectors. | |
199 | ||
66a5c2c6 JB |
200 | (defvar global-face-data nil |
201 | "Internal data for face support functions. Not for external use. | |
202 | This is an alist associating face names with the default values for | |
203 | their parameters. Newly created frames get their data from here.") | |
204 | ||
bdda3754 JB |
205 | (defun face-list () |
206 | "Returns a list of all defined face names." | |
207 | (mapcar 'car global-face-data)) | |
208 | ||
209 | (defun internal-find-face (name &optional frame) | |
210 | "Retrieve the face named NAME. Return nil if there is no such face. | |
211 | If the optional argument FRAME is given, this gets the face NAME for | |
212 | that frame; otherwise, it uses the selected frame. | |
213 | If FRAME is the symbol t, then the global, non-frame face is returned. | |
214 | If NAME is already a face, it is simply returned." | |
215 | (if (and (eq frame t) (not (symbolp name))) | |
216 | (setq name (face-name name))) | |
217 | (if (symbolp name) | |
218 | (cdr (assq name | |
219 | (if (eq frame t) | |
220 | global-face-data | |
221 | (frame-face-alist (or frame (selected-frame)))))) | |
222 | (internal-check-face name) | |
223 | name)) | |
224 | ||
225 | (defun internal-get-face (name &optional frame) | |
226 | "Retrieve the face named NAME; error if there is none. | |
227 | If the optional argument FRAME is given, this gets the face NAME for | |
228 | that frame; otherwise, it uses the selected frame. | |
229 | If FRAME is the symbol t, then the global, non-frame face is returned. | |
230 | If NAME is already a face, it is simply returned." | |
231 | (or (internal-find-face name frame) | |
232 | (internal-check-face name))) | |
233 | ||
234 | ||
235 | (defun internal-set-face-1 (face name value index frame) | |
236 | (let ((inhibit-quit t)) | |
237 | (if (null frame) | |
238 | (let ((frames (frame-list))) | |
239 | (while frames | |
240 | (internal-set-face-1 (face-name face) name value index (car frames)) | |
241 | (setq frames (cdr frames))) | |
242 | (aset (internal-get-face (if (symbolp face) face (face-name face)) t) | |
243 | index value) | |
244 | value) | |
245 | (or (eq frame t) | |
246 | (set-face-attribute-internal (face-id face) name value frame)) | |
247 | (aset (internal-get-face face frame) index value)))) | |
248 | ||
249 | ||
250 | (defun read-face-name (prompt) | |
251 | (let (face) | |
252 | (while (= (length face) 0) | |
253 | (setq face (completing-read prompt | |
254 | (mapcar '(lambda (x) (list (symbol-name x))) | |
255 | (face-list)) | |
256 | nil t))) | |
257 | (intern face))) | |
258 | ||
259 | (defun internal-face-interactive (what &optional bool) | |
260 | (let* ((fn (intern (concat "face-" what))) | |
261 | (prompt (concat "Set " what " of face")) | |
262 | (face (read-face-name (concat prompt ": "))) | |
263 | (default (if (fboundp fn) | |
264 | (or (funcall fn face (selected-frame)) | |
265 | (funcall fn 'default (selected-frame))))) | |
266 | (value (if bool | |
267 | (y-or-n-p (concat "Should face " (symbol-name face) | |
268 | " be " bool "? ")) | |
269 | (read-string (concat prompt " " (symbol-name face) " to: ") | |
270 | default)))) | |
271 | (list face (if (equal value "") nil value)))) | |
272 | ||
273 | ||
465fceed ER |
274 | |
275 | (defun make-face (name) | |
276 | "Define a new FACE on all frames. | |
277 | You can modify the font, color, etc of this face with the set-face- functions. | |
278 | If the face already exists, it is unmodified." | |
19fac299 | 279 | (interactive "SMake face: ") |
465fceed ER |
280 | (or (internal-find-face name) |
281 | (let ((face (make-vector 8 nil))) | |
282 | (aset face 0 'face) | |
283 | (aset face 1 name) | |
284 | (let* ((frames (frame-list)) | |
285 | (inhibit-quit t) | |
286 | (id (internal-next-face-id))) | |
287 | (make-face-internal id) | |
288 | (aset face 2 id) | |
289 | (while frames | |
290 | (set-frame-face-alist (car frames) | |
291 | (cons (cons name (copy-sequence face)) | |
292 | (frame-face-alist (car frames)))) | |
293 | (setq frames (cdr frames))) | |
294 | (setq global-face-data (cons (cons name face) global-face-data))) | |
295 | ;; when making a face after frames already exist | |
296 | (if (eq window-system 'x) | |
297 | (make-face-x-resource-internal face)) | |
33af44e8 BG |
298 | ;; add to menu |
299 | (if (fboundp 'facemenu-add-new-face) | |
300 | (facemenu-add-new-face name)) | |
7ee29ed8 RS |
301 | face)) |
302 | name) | |
465fceed ER |
303 | |
304 | ;; Fill in a face by default based on X resources, for all existing frames. | |
305 | ;; This has to be done when a new face is made. | |
306 | (defun make-face-x-resource-internal (face &optional frame set-anyway) | |
307 | (cond ((null frame) | |
308 | (let ((frames (frame-list))) | |
309 | (while frames | |
586ab698 RS |
310 | (if (eq (framep (car frames)) 'x) |
311 | (make-face-x-resource-internal (face-name face) | |
312 | (car frames) set-anyway)) | |
465fceed ER |
313 | (setq frames (cdr frames))))) |
314 | (t | |
315 | (setq face (internal-get-face (face-name face) frame)) | |
316 | ;; | |
317 | ;; These are things like "attributeForeground" instead of simply | |
318 | ;; "foreground" because people tend to do things like "*foreground", | |
319 | ;; which would cause all faces to be fully qualified, making faces | |
320 | ;; inherit attributes in a non-useful way. So we've made them slightly | |
321 | ;; less obvious to specify in order to make them work correctly in | |
322 | ;; more random environments. | |
323 | ;; | |
324 | ;; I think these should be called "face.faceForeground" instead of | |
325 | ;; "face.attributeForeground", but they're the way they are for | |
326 | ;; hysterical reasons. | |
327 | ;; | |
328 | (let* ((name (symbol-name (face-name face))) | |
329 | (fn (or (x-get-resource (concat name ".attributeFont") | |
330 | "Face.AttributeFont") | |
331 | (and set-anyway (face-font face)))) | |
332 | (fg (or (x-get-resource (concat name ".attributeForeground") | |
333 | "Face.AttributeForeground") | |
334 | (and set-anyway (face-foreground face)))) | |
335 | (bg (or (x-get-resource (concat name ".attributeBackground") | |
336 | "Face.AttributeBackground") | |
337 | (and set-anyway (face-background face)))) | |
72418504 RS |
338 | (bgp (or (x-get-resource (concat name ".attributeStipple") |
339 | "Face.AttributeStipple") | |
340 | (x-get-resource (concat name ".attributeBackgroundPixmap") | |
341 | "Face.AttributeBackgroundPixmap") | |
342 | (and set-anyway (face-stipple face)))) | |
69718e9d RS |
343 | (ulp (let ((resource (x-get-resource |
344 | (concat name ".attributeUnderline") | |
345 | "Face.AttributeUnderline"))) | |
346 | (if resource | |
347 | (member (downcase resource) '("on" "true")) | |
348 | (and set-anyway (face-underline-p face))))) | |
465fceed ER |
349 | ) |
350 | (if fn | |
351 | (condition-case () | |
352 | (set-face-font face fn frame) | |
353 | (error (message "font `%s' not found for face `%s'" fn name)))) | |
354 | (if fg | |
355 | (condition-case () | |
356 | (set-face-foreground face fg frame) | |
357 | (error (message "color `%s' not allocated for face `%s'" fg name)))) | |
358 | (if bg | |
359 | (condition-case () | |
360 | (set-face-background face bg frame) | |
361 | (error (message "color `%s' not allocated for face `%s'" bg name)))) | |
72418504 RS |
362 | (if bgp |
363 | (condition-case () | |
364 | (set-face-stipple face bgp frame) | |
365 | (error (message "pixmap `%s' not found for face `%s'" bgp name)))) | |
465fceed ER |
366 | (if (or ulp set-anyway) |
367 | (set-face-underline-p face ulp frame)) | |
368 | ))) | |
369 | face) | |
370 | ||
2f2ddd1e RS |
371 | (defun copy-face (old-face new-face &optional frame new-frame) |
372 | "Define a face just like OLD-FACE, with name NEW-FACE. | |
373 | If NEW-FACE already exists as a face, it is modified to be like OLD-FACE. | |
374 | If it doesn't already exist, it is created. | |
375 | ||
376 | If the optional argument FRAME is given as a frame, | |
377 | NEW-FACE is changed on FRAME only. | |
378 | If FRAME is t, the frame-independent default specification for OLD-FACE | |
379 | is copied to NEW-FACE. | |
380 | If FRAME is nil, copying is done for the frame-independent defaults | |
381 | and for each existing frame. | |
710e7005 RS |
382 | If the optional fourth argument NEW-FRAME is given, |
383 | copy the information from face OLD-FACE on frame FRAME | |
2f2ddd1e | 384 | to NEW-FACE on frame NEW-FRAME." |
710e7005 | 385 | (or new-frame (setq new-frame frame)) |
da41135a | 386 | (let ((inhibit-quit t)) |
465fceed ER |
387 | (if (null frame) |
388 | (let ((frames (frame-list))) | |
389 | (while frames | |
2f2ddd1e | 390 | (copy-face old-face new-face (car frames)) |
465fceed | 391 | (setq frames (cdr frames))) |
2f2ddd1e | 392 | (copy-face old-face new-face t)) |
da41135a KH |
393 | (setq old-face (internal-get-face old-face frame)) |
394 | (setq new-face (or (internal-find-face new-face new-frame) | |
395 | (make-face new-face))) | |
52267b56 RS |
396 | (condition-case nil |
397 | ;; A face that has a global symbolic font modifier such as `bold' | |
398 | ;; might legitimately get an error here. | |
399 | ;; Use the frame's default font in that case. | |
400 | (set-face-font new-face (face-font old-face frame) new-frame) | |
401 | (error | |
402 | (set-face-font new-face nil new-frame))) | |
710e7005 RS |
403 | (set-face-foreground new-face (face-foreground old-face frame) new-frame) |
404 | (set-face-background new-face (face-background old-face frame) new-frame) | |
72418504 RS |
405 | (set-face-stipple new-face |
406 | (face-stipple old-face frame) | |
407 | new-frame) | |
465fceed | 408 | (set-face-underline-p new-face (face-underline-p old-face frame) |
710e7005 | 409 | new-frame)) |
465fceed ER |
410 | new-face)) |
411 | ||
412 | (defun face-equal (face1 face2 &optional frame) | |
ade516a1 | 413 | "True if the faces FACE1 and FACE2 display in the same way." |
465fceed ER |
414 | (setq face1 (internal-get-face face1 frame) |
415 | face2 (internal-get-face face2 frame)) | |
416 | (and (equal (face-foreground face1 frame) (face-foreground face2 frame)) | |
417 | (equal (face-background face1 frame) (face-background face2 frame)) | |
418 | (equal (face-font face1 frame) (face-font face2 frame)) | |
ae0249df | 419 | (eq (face-underline-p face1 frame) (face-underline-p face2 frame)) |
72418504 RS |
420 | (equal (face-stipple face1 frame) |
421 | (face-stipple face2 frame)))) | |
465fceed ER |
422 | |
423 | (defun face-differs-from-default-p (face &optional frame) | |
424 | "True if face FACE displays differently from the default face, on FRAME. | |
425 | A face is considered to be ``the same'' as the default face if it is | |
426 | actually specified in the same way (equivalent fonts, etc) or if it is | |
427 | fully unspecified, and thus inherits the attributes of any face it | |
93d6fcef RS |
428 | is displayed on top of. |
429 | ||
430 | The optional argument FRAME specifies which frame to test; | |
431 | if FRAME is t, test the default for new frames. | |
432 | If FRAME is nil or omitted, test the selected frame." | |
465fceed ER |
433 | (let ((default (internal-get-face 'default frame))) |
434 | (setq face (internal-get-face face frame)) | |
435 | (not (and (or (equal (face-foreground default frame) | |
436 | (face-foreground face frame)) | |
437 | (null (face-foreground face frame))) | |
438 | (or (equal (face-background default frame) | |
439 | (face-background face frame)) | |
440 | (null (face-background face frame))) | |
441 | (or (equal (face-font default frame) (face-font face frame)) | |
442 | (null (face-font face frame))) | |
72418504 RS |
443 | (or (equal (face-stipple default frame) |
444 | (face-stipple face frame)) | |
445 | (null (face-stipple face frame))) | |
465fceed ER |
446 | (equal (face-underline-p default frame) |
447 | (face-underline-p face frame)) | |
448 | )))) | |
449 | ||
93d6fcef RS |
450 | (defun face-nontrivial-p (face &optional frame) |
451 | "True if face FACE has some non-nil attribute. | |
452 | The optional argument FRAME specifies which frame to test; | |
453 | if FRAME is t, test the default for new frames. | |
454 | If FRAME is nil or omitted, test the selected frame." | |
455 | (setq face (internal-get-face face frame)) | |
456 | (or (face-foreground face frame) | |
457 | (face-background face frame) | |
458 | (face-font face frame) | |
459 | (face-stipple face frame) | |
460 | (face-underline-p face frame))) | |
461 | ||
465fceed ER |
462 | |
463 | (defun invert-face (face &optional frame) | |
464 | "Swap the foreground and background colors of face FACE. | |
465 | If the face doesn't specify both foreground and background, then | |
8494bbf1 | 466 | set its foreground and background to the default background and foreground." |
465fceed ER |
467 | (interactive (list (read-face-name "Invert face: "))) |
468 | (setq face (internal-get-face face frame)) | |
469 | (let ((fg (face-foreground face frame)) | |
470 | (bg (face-background face frame))) | |
471 | (if (or fg bg) | |
472 | (progn | |
473 | (set-face-foreground face bg frame) | |
474 | (set-face-background face fg frame)) | |
8494bbf1 RS |
475 | (set-face-foreground face (or (face-background 'default frame) |
476 | (cdr (assq 'background-color (frame-parameters frame)))) | |
477 | frame) | |
478 | (set-face-background face (or (face-foreground 'default frame) | |
479 | (cdr (assq 'foreground-color (frame-parameters frame)))) | |
480 | frame))) | |
465fceed ER |
481 | face) |
482 | ||
483 | ||
484 | (defun internal-try-face-font (face font &optional frame) | |
485 | "Like set-face-font, but returns nil on failure instead of an error." | |
486 | (condition-case () | |
487 | (set-face-font face font frame) | |
488 | (error nil))) | |
465fceed ER |
489 | \f |
490 | ;; Manipulating font names. | |
491 | ||
492 | (defconst x-font-regexp nil) | |
493 | (defconst x-font-regexp-head nil) | |
494 | (defconst x-font-regexp-weight nil) | |
495 | (defconst x-font-regexp-slant nil) | |
496 | ||
497 | ;;; Regexps matching font names in "Host Portable Character Representation." | |
498 | ;;; | |
499 | (let ((- "[-?]") | |
500 | (foundry "[^-]+") | |
501 | (family "[^-]+") | |
502 | (weight "\\(bold\\|demibold\\|medium\\)") ; 1 | |
503 | ; (weight\? "\\(\\*\\|bold\\|demibold\\|medium\\|\\)") ; 1 | |
504 | (weight\? "\\([^-]*\\)") ; 1 | |
505 | (slant "\\([ior]\\)") ; 2 | |
506 | ; (slant\? "\\([ior?*]?\\)") ; 2 | |
507 | (slant\? "\\([^-]?\\)") ; 2 | |
508 | ; (swidth "\\(\\*\\|normal\\|semicondensed\\|\\)") ; 3 | |
509 | (swidth "\\([^-]*\\)") ; 3 | |
510 | ; (adstyle "\\(\\*\\|sans\\|\\)") ; 4 | |
511 | (adstyle "[^-]*") ; 4 | |
512 | (pixelsize "[0-9]+") | |
513 | (pointsize "[0-9][0-9]+") | |
514 | (resx "[0-9][0-9]+") | |
515 | (resy "[0-9][0-9]+") | |
516 | (spacing "[cmp?*]") | |
517 | (avgwidth "[0-9]+") | |
518 | (registry "[^-]+") | |
519 | (encoding "[^-]+") | |
520 | ) | |
521 | (setq x-font-regexp | |
522 | (concat "\\`\\*?[-?*]" | |
523 | foundry - family - weight\? - slant\? - swidth - adstyle - | |
524 | pixelsize - pointsize - resx - resy - spacing - registry - | |
525 | encoding "[-?*]\\*?\\'" | |
526 | )) | |
527 | (setq x-font-regexp-head | |
528 | (concat "\\`[-?*]" foundry - family - weight\? - slant\? | |
529 | "\\([-*?]\\|\\'\\)")) | |
530 | (setq x-font-regexp-slant (concat - slant -)) | |
531 | (setq x-font-regexp-weight (concat - weight -)) | |
532 | nil) | |
533 | ||
281dc1c2 JB |
534 | (defun x-resolve-font-name (pattern &optional face frame) |
535 | "Return a font name matching PATTERN. | |
536 | All wildcards in PATTERN become substantiated. | |
10d89673 JB |
537 | If PATTERN is nil, return the name of the frame's base font, which never |
538 | contains wildcards. | |
e17dbede RS |
539 | Given optional arguments FACE and FRAME, return a font which is |
540 | also the same size as FACE on FRAME, or fail." | |
14e6867c RS |
541 | (or (symbolp face) |
542 | (setq face (face-name face))) | |
543 | (and (eq frame t) | |
544 | (setq frame nil)) | |
10d89673 | 545 | (if pattern |
8db93e45 RS |
546 | ;; Note that x-list-fonts has code to handle a face with nil as its font. |
547 | (let ((fonts (x-list-fonts pattern face frame))) | |
10d89673 JB |
548 | (or fonts |
549 | (if face | |
7cf6fac1 | 550 | (error "No fonts matching pattern are the same size as `%s'" |
e17dbede RS |
551 | (if (null (face-font face)) |
552 | (cdr (assq 'font (frame-parameters frame))) | |
553 | face)) | |
7cf6fac1 | 554 | (error "No fonts match `%s'" pattern))) |
10d89673 JB |
555 | (car fonts)) |
556 | (cdr (assq 'font (frame-parameters (selected-frame)))))) | |
281dc1c2 | 557 | |
465fceed ER |
558 | (defun x-frob-font-weight (font which) |
559 | (if (or (string-match x-font-regexp font) | |
560 | (string-match x-font-regexp-head font) | |
561 | (string-match x-font-regexp-weight font)) | |
562 | (concat (substring font 0 (match-beginning 1)) which | |
563 | (substring font (match-end 1))) | |
564 | nil)) | |
565 | ||
566 | (defun x-frob-font-slant (font which) | |
567 | (cond ((or (string-match x-font-regexp font) | |
568 | (string-match x-font-regexp-head font)) | |
569 | (concat (substring font 0 (match-beginning 2)) which | |
570 | (substring font (match-end 2)))) | |
571 | ((string-match x-font-regexp-slant font) | |
572 | (concat (substring font 0 (match-beginning 1)) which | |
573 | (substring font (match-end 1)))) | |
574 | (t nil))) | |
575 | ||
576 | ||
577 | (defun x-make-font-bold (font) | |
f3f31ccf RS |
578 | "Given an X font specification, make a bold version of it. |
579 | If that can't be done, return nil." | |
465fceed ER |
580 | (x-frob-font-weight font "bold")) |
581 | ||
582 | (defun x-make-font-demibold (font) | |
f3f31ccf RS |
583 | "Given an X font specification, make a demibold version of it. |
584 | If that can't be done, return nil." | |
465fceed ER |
585 | (x-frob-font-weight font "demibold")) |
586 | ||
587 | (defun x-make-font-unbold (font) | |
f3f31ccf RS |
588 | "Given an X font specification, make a non-bold version of it. |
589 | If that can't be done, return nil." | |
465fceed ER |
590 | (x-frob-font-weight font "medium")) |
591 | ||
592 | (defun x-make-font-italic (font) | |
f3f31ccf RS |
593 | "Given an X font specification, make an italic version of it. |
594 | If that can't be done, return nil." | |
465fceed ER |
595 | (x-frob-font-slant font "i")) |
596 | ||
597 | (defun x-make-font-oblique (font) ; you say tomayto... | |
f3f31ccf RS |
598 | "Given an X font specification, make an oblique version of it. |
599 | If that can't be done, return nil." | |
465fceed ER |
600 | (x-frob-font-slant font "o")) |
601 | ||
602 | (defun x-make-font-unitalic (font) | |
f3f31ccf RS |
603 | "Given an X font specification, make a non-italic version of it. |
604 | If that can't be done, return nil." | |
465fceed | 605 | (x-frob-font-slant font "r")) |
465fceed ER |
606 | \f |
607 | ;;; non-X-specific interface | |
608 | ||
bb9a81fc | 609 | (defun make-face-bold (face &optional frame noerror) |
465fceed | 610 | "Make the font of the given face be bold, if possible. |
bb9a81fc | 611 | If NOERROR is non-nil, return nil on failure." |
465fceed | 612 | (interactive (list (read-face-name "Make which face bold: "))) |
534dbc97 | 613 | (if (and (eq frame t) (listp (face-font face t))) |
f3f31ccf RS |
614 | (set-face-font face (if (memq 'italic (face-font face t)) |
615 | '(bold italic) '(bold)) | |
616 | t) | |
617 | (let ((ofont (face-font face frame)) | |
4b3203d9 | 618 | font) |
f3f31ccf RS |
619 | (if (null frame) |
620 | (let ((frames (frame-list))) | |
621 | ;; Make this face bold in global-face-data. | |
622 | (make-face-bold face t noerror) | |
623 | ;; Make this face bold in each frame. | |
624 | (while frames | |
625 | (make-face-bold face (car frames) noerror) | |
626 | (setq frames (cdr frames)))) | |
627 | (setq face (internal-get-face face frame)) | |
628 | (setq font (or (face-font face frame) | |
629 | (face-font face t))) | |
630 | (if (listp font) | |
631 | (setq font nil)) | |
632 | (setq font (or font | |
633 | (face-font 'default frame) | |
634 | (cdr (assq 'font (frame-parameters frame))))) | |
96616c04 | 635 | (and font (make-face-bold-internal face frame font))) |
f3f31ccf RS |
636 | (or (not (equal ofont (face-font face))) |
637 | (and (not noerror) | |
638 | (error "No bold version of %S" font)))))) | |
639 | ||
4b3203d9 RS |
640 | (defun make-face-bold-internal (face frame font) |
641 | (let (f2) | |
642 | (or (and (setq f2 (x-make-font-bold font)) | |
643 | (internal-try-face-font face f2 frame)) | |
644 | (and (setq f2 (x-make-font-demibold font)) | |
645 | (internal-try-face-font face f2 frame))))) | |
bb9a81fc JB |
646 | |
647 | (defun make-face-italic (face &optional frame noerror) | |
465fceed | 648 | "Make the font of the given face be italic, if possible. |
bb9a81fc | 649 | If NOERROR is non-nil, return nil on failure." |
465fceed | 650 | (interactive (list (read-face-name "Make which face italic: "))) |
534dbc97 | 651 | (if (and (eq frame t) (listp (face-font face t))) |
f3f31ccf RS |
652 | (set-face-font face (if (memq 'bold (face-font face t)) |
653 | '(bold italic) '(italic)) | |
654 | t) | |
655 | (let ((ofont (face-font face frame)) | |
4b3203d9 | 656 | font) |
f3f31ccf RS |
657 | (if (null frame) |
658 | (let ((frames (frame-list))) | |
659 | ;; Make this face italic in global-face-data. | |
660 | (make-face-italic face t noerror) | |
661 | ;; Make this face italic in each frame. | |
662 | (while frames | |
663 | (make-face-italic face (car frames) noerror) | |
664 | (setq frames (cdr frames)))) | |
665 | (setq face (internal-get-face face frame)) | |
666 | (setq font (or (face-font face frame) | |
667 | (face-font face t))) | |
668 | (if (listp font) | |
669 | (setq font nil)) | |
670 | (setq font (or font | |
671 | (face-font 'default frame) | |
672 | (cdr (assq 'font (frame-parameters frame))))) | |
96616c04 | 673 | (and font (make-face-italic-internal face frame font))) |
f3f31ccf RS |
674 | (or (not (equal ofont (face-font face))) |
675 | (and (not noerror) | |
676 | (error "No italic version of %S" font)))))) | |
677 | ||
4b3203d9 RS |
678 | (defun make-face-italic-internal (face frame font) |
679 | (let (f2) | |
680 | (or (and (setq f2 (x-make-font-italic font)) | |
681 | (internal-try-face-font face f2 frame)) | |
682 | (and (setq f2 (x-make-font-oblique font)) | |
683 | (internal-try-face-font face f2 frame))))) | |
bb9a81fc JB |
684 | |
685 | (defun make-face-bold-italic (face &optional frame noerror) | |
465fceed | 686 | "Make the font of the given face be bold and italic, if possible. |
bb9a81fc | 687 | If NOERROR is non-nil, return nil on failure." |
465fceed | 688 | (interactive (list (read-face-name "Make which face bold-italic: "))) |
534dbc97 | 689 | (if (and (eq frame t) (listp (face-font face t))) |
f3f31ccf RS |
690 | (set-face-font face '(bold italic) t) |
691 | (let ((ofont (face-font face frame)) | |
692 | font) | |
693 | (if (null frame) | |
694 | (let ((frames (frame-list))) | |
695 | ;; Make this face bold-italic in global-face-data. | |
696 | (make-face-bold-italic face t noerror) | |
697 | ;; Make this face bold in each frame. | |
698 | (while frames | |
699 | (make-face-bold-italic face (car frames) noerror) | |
700 | (setq frames (cdr frames)))) | |
701 | (setq face (internal-get-face face frame)) | |
702 | (setq font (or (face-font face frame) | |
703 | (face-font face t))) | |
704 | (if (listp font) | |
705 | (setq font nil)) | |
706 | (setq font (or font | |
707 | (face-font 'default frame) | |
708 | (cdr (assq 'font (frame-parameters frame))))) | |
96616c04 | 709 | (and font (make-face-bold-italic-internal face frame font))) |
f3f31ccf RS |
710 | (or (not (equal ofont (face-font face))) |
711 | (and (not noerror) | |
712 | (error "No bold italic version of %S" font)))))) | |
713 | ||
4b3203d9 | 714 | (defun make-face-bold-italic-internal (face frame font) |
f3f31ccf RS |
715 | (let (f2 f3) |
716 | (or (and (setq f2 (x-make-font-italic font)) | |
717 | (not (equal font f2)) | |
718 | (setq f3 (x-make-font-bold f2)) | |
719 | (not (equal f2 f3)) | |
720 | (internal-try-face-font face f3 frame)) | |
721 | (and (setq f2 (x-make-font-oblique font)) | |
722 | (not (equal font f2)) | |
723 | (setq f3 (x-make-font-bold f2)) | |
724 | (not (equal f2 f3)) | |
725 | (internal-try-face-font face f3 frame)) | |
726 | (and (setq f2 (x-make-font-italic font)) | |
727 | (not (equal font f2)) | |
728 | (setq f3 (x-make-font-demibold f2)) | |
729 | (not (equal f2 f3)) | |
730 | (internal-try-face-font face f3 frame)) | |
731 | (and (setq f2 (x-make-font-oblique font)) | |
732 | (not (equal font f2)) | |
733 | (setq f3 (x-make-font-demibold f2)) | |
734 | (not (equal f2 f3)) | |
735 | (internal-try-face-font face f3 frame))))) | |
bb9a81fc JB |
736 | |
737 | (defun make-face-unbold (face &optional frame noerror) | |
465fceed | 738 | "Make the font of the given face be non-bold, if possible. |
bb9a81fc | 739 | If NOERROR is non-nil, return nil on failure." |
465fceed | 740 | (interactive (list (read-face-name "Make which face non-bold: "))) |
534dbc97 | 741 | (if (and (eq frame t) (listp (face-font face t))) |
f3f31ccf RS |
742 | (set-face-font face (if (memq 'italic (face-font face t)) |
743 | '(italic) nil) | |
744 | t) | |
745 | (let ((ofont (face-font face frame)) | |
746 | font font1) | |
747 | (if (null frame) | |
748 | (let ((frames (frame-list))) | |
749 | ;; Make this face unbold in global-face-data. | |
750 | (make-face-unbold face t noerror) | |
751 | ;; Make this face unbold in each frame. | |
752 | (while frames | |
753 | (make-face-unbold face (car frames) noerror) | |
754 | (setq frames (cdr frames)))) | |
755 | (setq face (internal-get-face face frame)) | |
756 | (setq font1 (or (face-font face frame) | |
757 | (face-font face t))) | |
758 | (if (listp font1) | |
759 | (setq font1 nil)) | |
760 | (setq font1 (or font1 | |
761 | (face-font 'default frame) | |
762 | (cdr (assq 'font (frame-parameters frame))))) | |
96616c04 | 763 | (setq font (and font1 (x-make-font-unbold font1))) |
f3f31ccf RS |
764 | (if font (internal-try-face-font face font frame))) |
765 | (or (not (equal ofont (face-font face))) | |
766 | (and (not noerror) | |
767 | (error "No unbold version of %S" font1)))))) | |
bb9a81fc JB |
768 | |
769 | (defun make-face-unitalic (face &optional frame noerror) | |
465fceed | 770 | "Make the font of the given face be non-italic, if possible. |
bb9a81fc | 771 | If NOERROR is non-nil, return nil on failure." |
465fceed | 772 | (interactive (list (read-face-name "Make which face non-italic: "))) |
534dbc97 | 773 | (if (and (eq frame t) (listp (face-font face t))) |
f3f31ccf RS |
774 | (set-face-font face (if (memq 'bold (face-font face t)) |
775 | '(bold) nil) | |
776 | t) | |
777 | (let ((ofont (face-font face frame)) | |
778 | font font1) | |
779 | (if (null frame) | |
780 | (let ((frames (frame-list))) | |
781 | ;; Make this face unitalic in global-face-data. | |
782 | (make-face-unitalic face t noerror) | |
783 | ;; Make this face unitalic in each frame. | |
784 | (while frames | |
785 | (make-face-unitalic face (car frames) noerror) | |
786 | (setq frames (cdr frames)))) | |
787 | (setq face (internal-get-face face frame)) | |
788 | (setq font1 (or (face-font face frame) | |
789 | (face-font face t))) | |
790 | (if (listp font1) | |
791 | (setq font1 nil)) | |
792 | (setq font1 (or font1 | |
793 | (face-font 'default frame) | |
794 | (cdr (assq 'font (frame-parameters frame))))) | |
96616c04 | 795 | (setq font (and font1 (x-make-font-unitalic font1))) |
f3f31ccf RS |
796 | (if font (internal-try-face-font face font frame))) |
797 | (or (not (equal ofont (face-font face))) | |
798 | (and (not noerror) | |
799 | (error "No unitalic version of %S" font1)))))) | |
465fceed | 800 | \f |
710e7005 RS |
801 | (defvar list-faces-sample-text |
802 | "abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
803 | "*Text string to display as the sample text for `list-faces-display'.") | |
804 | ||
805 | ;; The name list-faces would be more consistent, but let's avoid a conflict | |
806 | ;; with Lucid, which uses that name differently. | |
807 | (defun list-faces-display () | |
808 | "List all faces, using the same sample text in each. | |
809 | The sample text is a string that comes from the variable | |
810 | `list-faces-sample-text'. | |
811 | ||
812 | It is possible to give a particular face name different appearances in | |
813 | different frames. This command shows the appearance in the | |
814 | selected frame." | |
815 | (interactive) | |
816 | (let ((faces (sort (face-list) (function string-lessp))) | |
817 | (face nil) | |
818 | (frame (selected-frame)) | |
819 | disp-frame window) | |
820 | (with-output-to-temp-buffer "*Faces*" | |
821 | (save-excursion | |
822 | (set-buffer standard-output) | |
823 | (setq truncate-lines t) | |
824 | (while faces | |
825 | (setq face (car faces)) | |
826 | (setq faces (cdr faces)) | |
827 | (insert (format "%25s " (symbol-name face))) | |
828 | (let ((beg (point))) | |
829 | (insert list-faces-sample-text) | |
830 | (insert "\n") | |
23b04eac RS |
831 | (put-text-property beg (1- (point)) 'face face) |
832 | ;; If the sample text has multiple lines, line up all of them. | |
833 | (goto-char beg) | |
834 | (forward-line 1) | |
835 | (while (not (eobp)) | |
836 | (insert " ") | |
837 | (forward-line 1)))) | |
710e7005 RS |
838 | (goto-char (point-min)))) |
839 | ;; If the *Faces* buffer appears in a different frame, | |
840 | ;; copy all the face definitions from FRAME, | |
841 | ;; so that the display will reflect the frame that was selected. | |
842 | (setq window (get-buffer-window (get-buffer "*Faces*") t)) | |
843 | (setq disp-frame (if window (window-frame window) | |
844 | (car (frame-list)))) | |
845 | (or (eq frame disp-frame) | |
846 | (let ((faces (face-list))) | |
847 | (while faces | |
848 | (copy-face (car faces) (car faces) frame disp-frame) | |
849 | (setq faces (cdr faces))))))) | |
850 | \f | |
19ae9866 RS |
851 | ;;; Make the standard faces. |
852 | ;;; The C code knows the default and modeline faces as faces 0 and 1, | |
853 | ;;; so they must be the first two faces made. | |
e09c52a8 | 854 | (defun face-initialize () |
465fceed | 855 | (make-face 'default) |
ebea97d8 | 856 | (make-face 'modeline) |
465fceed | 857 | (make-face 'highlight) |
19ae9866 | 858 | |
465fceed | 859 | ;; These aren't really special in any way, but they're nice to have around. |
19ae9866 | 860 | |
465fceed ER |
861 | (make-face 'bold) |
862 | (make-face 'italic) | |
863 | (make-face 'bold-italic) | |
578d09a6 | 864 | (make-face 'region) |
e09c52a8 | 865 | (make-face 'secondary-selection) |
f4b9e76b | 866 | (make-face 'underline) |
e09c52a8 | 867 | |
578d09a6 | 868 | (setq region-face (face-id 'region)) |
8494bbf1 | 869 | |
19ae9866 RS |
870 | ;; Specify the global properties of these faces |
871 | ;; so they will come out right on new frames. | |
872 | ||
873 | (make-face-bold 'bold t) | |
874 | (make-face-italic 'italic t) | |
875 | (make-face-bold-italic 'bold-italic t) | |
876 | ||
877 | (set-face-background 'highlight '("darkseagreen2" "green" t) t) | |
566b0ad2 | 878 | (set-face-background 'region '("gray" underline) t) |
19ae9866 RS |
879 | (set-face-background 'secondary-selection '("paleturquoise" "green" t) t) |
880 | (set-face-background 'modeline '(t) t) | |
881 | (set-face-underline-p 'underline t t) | |
882 | ||
883 | ;; Set up the faces of all existing X Window frames | |
884 | ;; from those global properties, unless already set in a given frame. | |
885 | ||
e09c52a8 RS |
886 | (let ((frames (frame-list))) |
887 | (while frames | |
e17dbede | 888 | (if (not (memq (framep (car frames)) '(t nil))) |
19ae9866 RS |
889 | (let ((frame (car frames)) |
890 | (rest global-face-data)) | |
891 | (while rest | |
892 | (let ((face (car (car rest)))) | |
893 | (or (face-differs-from-default-p face) | |
894 | (face-fill-in face (cdr (car rest)) frame))) | |
895 | (setq rest (cdr rest))))) | |
e09c52a8 RS |
896 | (setq frames (cdr frames))))) |
897 | ||
465fceed | 898 | \f |
465fceed ER |
899 | ;; Like x-create-frame but also set up the faces. |
900 | ||
901 | (defun x-create-frame-with-faces (&optional parameters) | |
e09c52a8 RS |
902 | (if (null global-face-data) |
903 | (x-create-frame parameters) | |
e69e8fad RS |
904 | (let* ((visibility-spec (assq 'visibility parameters)) |
905 | (frame (x-create-frame (cons '(visibility . nil) parameters))) | |
e09c52a8 | 906 | (faces (copy-alist global-face-data)) |
e7cc6aa5 | 907 | success |
ebea97d8 | 908 | (rest faces)) |
e7cc6aa5 RS |
909 | (unwind-protect |
910 | (progn | |
911 | (set-frame-face-alist frame faces) | |
912 | ||
913 | (if (cdr (or (assq 'reverse parameters) | |
914 | (assq 'reverse default-frame-alist) | |
915 | (let ((resource (x-get-resource "reverseVideo" | |
916 | "ReverseVideo"))) | |
917 | (if resource | |
918 | (cons nil (member (downcase resource) | |
919 | '("on" "true"))))))) | |
920 | (let ((params (frame-parameters frame))) | |
921 | (modify-frame-parameters | |
922 | frame | |
923 | (list (cons 'foreground-color (cdr (assq 'background-color params))) | |
924 | (cons 'background-color (cdr (assq 'foreground-color params))) | |
925 | (cons 'mouse-color (cdr (assq 'background-color params))) | |
926 | (cons 'border-color (cdr (assq 'background-color params))))) | |
927 | (modify-frame-parameters | |
928 | frame | |
929 | (list (cons 'cursor-color (cdr (assq 'background-color params))))))) | |
930 | ||
931 | ;; Copy the vectors that represent the faces. | |
932 | ;; Also fill them in from X resources. | |
933 | (while rest | |
934 | (let ((global (cdr (car rest)))) | |
935 | (setcdr (car rest) (vector 'face | |
936 | (face-name (cdr (car rest))) | |
937 | (face-id (cdr (car rest))) | |
938 | nil nil nil nil nil)) | |
939 | (face-fill-in (car (car rest)) global frame)) | |
940 | (make-face-x-resource-internal (cdr (car rest)) frame t) | |
941 | (setq rest (cdr rest))) | |
942 | (if (null visibility-spec) | |
943 | (make-frame-visible frame) | |
944 | (modify-frame-parameters frame (list visibility-spec))) | |
945 | (setq success t) | |
946 | frame) | |
947 | (or success | |
948 | (delete-frame frame)))))) | |
e09c52a8 | 949 | |
9d52c8d3 RS |
950 | ;; Update a frame's faces when we change its default font. |
951 | (defun frame-update-faces (frame) | |
952 | (let* ((faces global-face-data) | |
953 | (rest faces)) | |
954 | (while rest | |
955 | (let* ((face (car (car rest))) | |
956 | (font (face-font face t))) | |
957 | (if (listp font) | |
958 | (let ((bold (memq 'bold font)) | |
959 | (italic (memq 'italic font))) | |
99fb9482 KH |
960 | ;; Ignore any previous (string-valued) font, it might not even |
961 | ;; be the right size anymore. | |
962 | (set-face-font face nil frame) | |
9d52c8d3 RS |
963 | (cond ((and bold italic) |
964 | (make-face-bold-italic face frame t)) | |
965 | (bold | |
966 | (make-face-bold face frame t)) | |
967 | (italic | |
968 | (make-face-italic face frame t))))) | |
969 | (setq rest (cdr rest))) | |
970 | frame))) | |
971 | ||
f16c38ae RS |
972 | ;; Update the colors of FACE, after FRAME's own colors have been changed. |
973 | ;; This applies only to faces with global color specifications | |
974 | ;; that are not simple constants. | |
975 | (defun frame-update-face-colors (frame) | |
976 | (let ((faces global-face-data)) | |
977 | (while faces | |
978 | (condition-case nil | |
979 | (let* ((data (cdr (car faces))) | |
980 | (face (car (car faces))) | |
981 | (foreground (face-foreground data)) | |
982 | (background (face-background data))) | |
983 | ;; If the global spec is a specific color, | |
984 | ;; which doesn't depend on the frame's attributes, | |
985 | ;; we don't need to recalculate it now. | |
986 | (or (listp foreground) | |
987 | (setq foreground nil)) | |
988 | (or (listp background) | |
989 | (setq background nil)) | |
990 | ;; If we are going to frob this face at all, | |
991 | ;; reinitialize it first. | |
992 | (if (or foreground background) | |
993 | (progn (set-face-foreground face nil frame) | |
994 | (set-face-background face nil frame))) | |
995 | (if foreground | |
996 | (face-try-color-list 'set-face-foreground | |
997 | face foreground frame)) | |
998 | (if background | |
999 | (face-try-color-list 'set-face-background | |
1000 | face background frame))) | |
1001 | (error nil)) | |
1002 | (setq faces (cdr faces))))) | |
1003 | ||
19ae9866 RS |
1004 | ;; Fill in the face FACE from frame-independent face data DATA. |
1005 | ;; DATA should be the non-frame-specific ("global") face vector | |
1006 | ;; for the face. FACE should be a face name or face object. | |
1007 | ;; FRAME is the frame to act on; it must be an actual frame, not nil or t. | |
1008 | (defun face-fill-in (face data frame) | |
1009 | (condition-case nil | |
1010 | (let ((foreground (face-foreground data)) | |
1011 | (background (face-background data)) | |
1012 | (font (face-font data))) | |
1013 | (set-face-underline-p face (face-underline-p data) frame) | |
1014 | (if foreground | |
1015 | (face-try-color-list 'set-face-foreground | |
1016 | face foreground frame)) | |
1017 | (if background | |
1018 | (face-try-color-list 'set-face-background | |
1019 | face background frame)) | |
1020 | (if (listp font) | |
1021 | (let ((bold (memq 'bold font)) | |
1022 | (italic (memq 'italic font))) | |
1023 | (cond ((and bold italic) | |
1024 | (make-face-bold-italic face frame)) | |
1025 | (bold | |
1026 | (make-face-bold face frame)) | |
1027 | (italic | |
1028 | (make-face-italic face frame)))) | |
1029 | (if font | |
1030 | (set-face-font face font frame)))) | |
1031 | (error nil))) | |
e09c52a8 | 1032 | |
4099a32d RS |
1033 | ;; Assuming COLOR is a valid color name, |
1034 | ;; return t if it can be displayed on FRAME. | |
1035 | (defun face-color-supported-p (frame color background-p) | |
1036 | (or (x-display-color-p frame) | |
1037 | ;; A black-and-white display can implement these. | |
1038 | (member color '("black" "white")) | |
1039 | ;; A black-and-white display can fake these for background. | |
1040 | (and background-p | |
1041 | (member color '("gray" "gray1" "gray3"))) | |
1042 | ;; A grayscale display can implement colors that are gray (more or less). | |
1043 | (and (x-display-grayscale-p frame) | |
1044 | (let* ((values (x-color-values color frame)) | |
1045 | (r (nth 0 values)) | |
1046 | (g (nth 1 values)) | |
1047 | (b (nth 2 values))) | |
1048 | (and (< (abs (- r g)) (/ (abs (+ r g)) 20)) | |
1049 | (< (abs (- g b)) (/ (abs (+ g b)) 20)) | |
1050 | (< (abs (- b r)) (/ (abs (+ b r)) 20))))))) | |
1051 | ||
19ae9866 RS |
1052 | ;; Use FUNCTION to store a color in FACE on FRAME. |
1053 | ;; COLORS is either a single color or a list of colors. | |
1054 | ;; If it is a list, try the colors one by one until one of them | |
1055 | ;; succeeds. We signal an error only if all the colors failed. | |
1056 | ;; t as COLORS or as an element of COLORS means to invert the face. | |
1057 | ;; That can't fail, so any subsequent elements after the t are ignored. | |
1058 | (defun face-try-color-list (function face colors frame) | |
1059 | (if (stringp colors) | |
4099a32d RS |
1060 | (if (face-color-supported-p frame colors |
1061 | (eq function 'set-face-background)) | |
1062 | (funcall function face colors frame)) | |
19ae9866 RS |
1063 | (if (eq colors t) |
1064 | (invert-face face frame) | |
1065 | (let (done) | |
1066 | (while (and colors (not done)) | |
de52827f | 1067 | (if (or (memq (car colors) '(t underline)) |
4099a32d RS |
1068 | (face-color-supported-p frame (car colors) |
1069 | (eq function 'set-face-background))) | |
1070 | (if (cdr colors) | |
1071 | ;; If there are more colors to try, catch errors | |
1072 | ;; and set `done' if we succeed. | |
1073 | (condition-case nil | |
1074 | (progn | |
1075 | (cond ((eq (car colors) t) | |
1076 | (invert-face face frame)) | |
1077 | ((eq (car colors) 'underline) | |
1078 | (set-face-underline-p face t frame)) | |
1079 | (t | |
1080 | (funcall function face (car colors) frame))) | |
1081 | (setq done t)) | |
1082 | (error nil)) | |
1083 | ;; If this is the last color, let the error get out if it fails. | |
1084 | ;; If it succeeds, we will exit anyway after this iteration. | |
1085 | (cond ((eq (car colors) t) | |
1086 | (invert-face face frame)) | |
1087 | ((eq (car colors) 'underline) | |
1088 | (set-face-underline-p face t frame)) | |
1089 | (t | |
1090 | (funcall function face (car colors) frame))))) | |
19ae9866 | 1091 | (setq colors (cdr colors))))))) |
e09c52a8 RS |
1092 | |
1093 | ;; If we are already using x-window frames, initialize faces for them. | |
1094 | (if (eq (framep (selected-frame)) 'x) | |
1095 | (face-initialize)) | |
465fceed | 1096 | |
f0138172 JB |
1097 | (provide 'faces) |
1098 | ||
465fceed | 1099 | ;;; faces.el ends here |