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1 | ;;; faces.el --- Lisp interface to the c "face" structure |
2 | ||
3 | ;; Copyright (C) 1992, 1993 Free Software Foundation, Inc. | |
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 | ||
bdda3754 JB |
27 | \f |
28 | ;;;; Functions for manipulating face vectors. | |
29 | ||
30 | ;;; A face vector is a vector of the form: | |
31 | ;;; [face ID FONT FOREGROUND BACKGROUND BACKGROUND-PIXMAP UNDERLINE] | |
32 | ||
33 | ;;; Type checkers. | |
465fceed ER |
34 | (defsubst internal-facep (x) |
35 | (and (vectorp x) (= (length x) 8) (eq (aref x 0) 'face))) | |
36 | ||
37 | (defmacro internal-check-face (face) | |
38 | (` (while (not (internal-facep (, face))) | |
39 | (setq (, face) (signal 'wrong-type-argument (list 'internal-facep (, face))))))) | |
40 | ||
bdda3754 | 41 | ;;; Accessors. |
465fceed ER |
42 | (defsubst face-name (face) |
43 | "Return the name of face FACE." | |
44 | (aref (internal-get-face face) 1)) | |
45 | ||
46 | (defsubst face-id (face) | |
47 | "Return the internal ID number of face FACE." | |
48 | (aref (internal-get-face face) 2)) | |
49 | ||
50 | (defsubst face-font (face &optional frame) | |
51 | "Return the font name of face FACE, or nil if it is unspecified. | |
52 | If the optional argument FRAME is given, report on face FACE in that frame. | |
53 | Otherwise report on the defaults for face FACE (for new frames)." | |
54 | (aref (internal-get-face face frame) 3)) | |
55 | ||
56 | (defsubst face-foreground (face &optional frame) | |
57 | "Return the foreground color name of face FACE, or nil if unspecified. | |
58 | If the optional argument FRAME is given, report on face FACE in that frame. | |
59 | Otherwise report on the defaults for face FACE (for new frames)." | |
60 | (aref (internal-get-face face frame) 4)) | |
61 | ||
62 | (defsubst face-background (face &optional frame) | |
63 | "Return the background color name of face FACE, or nil if unspecified. | |
64 | If the optional argument FRAME is given, report on face FACE in that frame. | |
65 | Otherwise report on the defaults for face FACE (for new frames)." | |
66 | (aref (internal-get-face face frame) 5)) | |
67 | ||
68 | (defsubst face-background-pixmap (face &optional frame) | |
69 | "Return the background pixmap name of face FACE, or nil if unspecified. | |
70 | If the optional argument FRAME is given, report on face FACE in that frame. | |
71 | Otherwise report on the defaults for face FACE (for new frames)." | |
72 | (aref (internal-get-face face frame) 6)) | |
73 | ||
74 | (defsubst face-underline-p (face &optional frame) | |
75 | "Return t if face FACE is underlined. | |
76 | If the optional argument FRAME is given, report on face FACE in that frame. | |
77 | Otherwise report on the defaults for face FACE (for new frames)." | |
78 | (aref (internal-get-face face frame) 7)) | |
79 | ||
bdda3754 JB |
80 | \f |
81 | ;;; Mutators. | |
465fceed ER |
82 | |
83 | (defsubst set-face-font (face font &optional frame) | |
84 | "Change the font of face FACE to FONT (a string). | |
85 | If the optional FRAME argument is provided, change only | |
86 | in that frame; otherwise change each frame." | |
87 | (interactive (internal-face-interactive "font")) | |
f0138172 | 88 | (internal-set-face-1 face 'font font 3 frame)) |
465fceed ER |
89 | |
90 | (defsubst set-face-foreground (face color &optional frame) | |
91 | "Change the foreground color of face FACE to COLOR (a string). | |
92 | If the optional FRAME argument is provided, change only | |
93 | in that frame; otherwise change each frame." | |
94 | (interactive (internal-face-interactive "foreground")) | |
f0138172 | 95 | (internal-set-face-1 face 'foreground color 4 frame)) |
465fceed ER |
96 | |
97 | (defsubst set-face-background (face color &optional frame) | |
98 | "Change the background color of face FACE to COLOR (a string). | |
99 | If the optional FRAME argument is provided, change only | |
100 | in that frame; otherwise change each frame." | |
101 | (interactive (internal-face-interactive "background")) | |
f0138172 | 102 | (internal-set-face-1 face 'background color 5 frame)) |
465fceed ER |
103 | |
104 | (defsubst set-face-background-pixmap (face name &optional frame) | |
105 | "Change the background pixmap of face FACE to PIXMAP. | |
106 | PIXMAP should be a string, the name of a file of pixmap data. | |
107 | The directories listed in the `x-bitmap-file-path' variable are searched. | |
108 | ||
109 | Alternatively, PIXMAP may be a list of the form (WIDTH HEIGHT DATA) | |
110 | where WIDTH and HEIGHT are the size in pixels, | |
111 | and DATA is a string, containing the raw bits of the bitmap. | |
112 | ||
113 | If the optional FRAME argument is provided, change only | |
114 | in that frame; otherwise change each frame." | |
115 | (interactive (internal-face-interactive "background-pixmap")) | |
f0138172 | 116 | (internal-set-face-1 face 'background-pixmap name 6 frame)) |
465fceed ER |
117 | |
118 | (defsubst set-face-underline-p (face underline-p &optional frame) | |
119 | "Specify whether face FACE is underlined. (Yes if UNDERLINE-P is non-nil.) | |
120 | If the optional FRAME argument is provided, change only | |
121 | in that frame; otherwise change each frame." | |
122 | (interactive (internal-face-interactive "underline-p" "underlined")) | |
f0138172 | 123 | (internal-set-face-1 face 'underline underline-p 7 frame)) |
465fceed | 124 | |
bdda3754 JB |
125 | \f |
126 | ;;;; Associating face names (symbols) with their face vectors. | |
127 | ||
128 | (defvar global-face-data nil "do not use this") | |
129 | ||
130 | (defun face-list () | |
131 | "Returns a list of all defined face names." | |
132 | (mapcar 'car global-face-data)) | |
133 | ||
134 | (defun internal-find-face (name &optional frame) | |
135 | "Retrieve the face named NAME. Return nil if there is no such face. | |
136 | If the optional argument FRAME is given, this gets the face NAME for | |
137 | that frame; otherwise, it uses the selected frame. | |
138 | If FRAME is the symbol t, then the global, non-frame face is returned. | |
139 | If NAME is already a face, it is simply returned." | |
140 | (if (and (eq frame t) (not (symbolp name))) | |
141 | (setq name (face-name name))) | |
142 | (if (symbolp name) | |
143 | (cdr (assq name | |
144 | (if (eq frame t) | |
145 | global-face-data | |
146 | (frame-face-alist (or frame (selected-frame)))))) | |
147 | (internal-check-face name) | |
148 | name)) | |
149 | ||
150 | (defun internal-get-face (name &optional frame) | |
151 | "Retrieve the face named NAME; error if there is none. | |
152 | If the optional argument FRAME is given, this gets the face NAME for | |
153 | that frame; otherwise, it uses the selected frame. | |
154 | If FRAME is the symbol t, then the global, non-frame face is returned. | |
155 | If NAME is already a face, it is simply returned." | |
156 | (or (internal-find-face name frame) | |
157 | (internal-check-face name))) | |
158 | ||
159 | ||
160 | (defun internal-set-face-1 (face name value index frame) | |
161 | (let ((inhibit-quit t)) | |
162 | (if (null frame) | |
163 | (let ((frames (frame-list))) | |
164 | (while frames | |
165 | (internal-set-face-1 (face-name face) name value index (car frames)) | |
166 | (setq frames (cdr frames))) | |
167 | (aset (internal-get-face (if (symbolp face) face (face-name face)) t) | |
168 | index value) | |
169 | value) | |
170 | (or (eq frame t) | |
171 | (set-face-attribute-internal (face-id face) name value frame)) | |
172 | (aset (internal-get-face face frame) index value)))) | |
173 | ||
174 | ||
175 | (defun read-face-name (prompt) | |
176 | (let (face) | |
177 | (while (= (length face) 0) | |
178 | (setq face (completing-read prompt | |
179 | (mapcar '(lambda (x) (list (symbol-name x))) | |
180 | (face-list)) | |
181 | nil t))) | |
182 | (intern face))) | |
183 | ||
184 | (defun internal-face-interactive (what &optional bool) | |
185 | (let* ((fn (intern (concat "face-" what))) | |
186 | (prompt (concat "Set " what " of face")) | |
187 | (face (read-face-name (concat prompt ": "))) | |
188 | (default (if (fboundp fn) | |
189 | (or (funcall fn face (selected-frame)) | |
190 | (funcall fn 'default (selected-frame))))) | |
191 | (value (if bool | |
192 | (y-or-n-p (concat "Should face " (symbol-name face) | |
193 | " be " bool "? ")) | |
194 | (read-string (concat prompt " " (symbol-name face) " to: ") | |
195 | default)))) | |
196 | (list face (if (equal value "") nil value)))) | |
197 | ||
198 | ||
465fceed ER |
199 | |
200 | (defun make-face (name) | |
201 | "Define a new FACE on all frames. | |
202 | You can modify the font, color, etc of this face with the set-face- functions. | |
203 | If the face already exists, it is unmodified." | |
19fac299 | 204 | (interactive "SMake face: ") |
465fceed ER |
205 | (or (internal-find-face name) |
206 | (let ((face (make-vector 8 nil))) | |
207 | (aset face 0 'face) | |
208 | (aset face 1 name) | |
209 | (let* ((frames (frame-list)) | |
210 | (inhibit-quit t) | |
211 | (id (internal-next-face-id))) | |
212 | (make-face-internal id) | |
213 | (aset face 2 id) | |
214 | (while frames | |
215 | (set-frame-face-alist (car frames) | |
216 | (cons (cons name (copy-sequence face)) | |
217 | (frame-face-alist (car frames)))) | |
218 | (setq frames (cdr frames))) | |
219 | (setq global-face-data (cons (cons name face) global-face-data))) | |
220 | ;; when making a face after frames already exist | |
221 | (if (eq window-system 'x) | |
222 | (make-face-x-resource-internal face)) | |
223 | face))) | |
224 | ||
225 | ;; Fill in a face by default based on X resources, for all existing frames. | |
226 | ;; This has to be done when a new face is made. | |
227 | (defun make-face-x-resource-internal (face &optional frame set-anyway) | |
228 | (cond ((null frame) | |
229 | (let ((frames (frame-list))) | |
230 | (while frames | |
231 | (make-face-x-resource-internal (face-name face) | |
232 | (car frames) set-anyway) | |
233 | (setq frames (cdr frames))))) | |
234 | (t | |
235 | (setq face (internal-get-face (face-name face) frame)) | |
236 | ;; | |
237 | ;; These are things like "attributeForeground" instead of simply | |
238 | ;; "foreground" because people tend to do things like "*foreground", | |
239 | ;; which would cause all faces to be fully qualified, making faces | |
240 | ;; inherit attributes in a non-useful way. So we've made them slightly | |
241 | ;; less obvious to specify in order to make them work correctly in | |
242 | ;; more random environments. | |
243 | ;; | |
244 | ;; I think these should be called "face.faceForeground" instead of | |
245 | ;; "face.attributeForeground", but they're the way they are for | |
246 | ;; hysterical reasons. | |
247 | ;; | |
248 | (let* ((name (symbol-name (face-name face))) | |
249 | (fn (or (x-get-resource (concat name ".attributeFont") | |
250 | "Face.AttributeFont") | |
251 | (and set-anyway (face-font face)))) | |
252 | (fg (or (x-get-resource (concat name ".attributeForeground") | |
253 | "Face.AttributeForeground") | |
254 | (and set-anyway (face-foreground face)))) | |
255 | (bg (or (x-get-resource (concat name ".attributeBackground") | |
256 | "Face.AttributeBackground") | |
257 | (and set-anyway (face-background face)))) | |
258 | ;; (bgp (or (x-get-resource (concat name ".attributeBackgroundPixmap") | |
259 | ;; "Face.AttributeBackgroundPixmap") | |
260 | ;; (and set-anyway (face-background-pixmap face)))) | |
261 | (ulp (or (x-get-resource (concat name ".attributeUnderline") | |
262 | "Face.AttributeUnderline") | |
263 | (and set-anyway (face-underline-p face)))) | |
264 | ) | |
265 | (if fn | |
266 | (condition-case () | |
267 | (set-face-font face fn frame) | |
268 | (error (message "font `%s' not found for face `%s'" fn name)))) | |
269 | (if fg | |
270 | (condition-case () | |
271 | (set-face-foreground face fg frame) | |
272 | (error (message "color `%s' not allocated for face `%s'" fg name)))) | |
273 | (if bg | |
274 | (condition-case () | |
275 | (set-face-background face bg frame) | |
276 | (error (message "color `%s' not allocated for face `%s'" bg name)))) | |
277 | ;; (if bgp | |
278 | ;; (condition-case () | |
279 | ;; (set-face-background-pixmap face bgp frame) | |
280 | ;; (error (message "pixmap `%s' not found for face `%s'" bgp name)))) | |
281 | (if (or ulp set-anyway) | |
282 | (set-face-underline-p face ulp frame)) | |
283 | ))) | |
284 | face) | |
285 | ||
286 | (defun copy-face (old-face new-name &optional frame) | |
287 | "Define a face just like OLD-FACE, with name NEW-NAME. | |
288 | If NEW-NAME already exists as a face, it is modified to be like OLD-FACE. | |
289 | If the optional argument FRAME is given, this applies only to that frame. | |
290 | Otherwise it applies to each frame separately." | |
291 | (setq old-face (internal-get-face old-face frame)) | |
292 | (let* ((inhibit-quit t) | |
293 | (new-face (or (internal-find-face new-name frame) | |
294 | (make-face new-name)))) | |
295 | (if (null frame) | |
296 | (let ((frames (frame-list))) | |
297 | (while frames | |
298 | (copy-face old-face new-name (car frames)) | |
299 | (setq frames (cdr frames))) | |
300 | (copy-face old-face new-name t)) | |
301 | (set-face-font new-face (face-font old-face frame) frame) | |
302 | (set-face-foreground new-face (face-foreground old-face frame) frame) | |
303 | (set-face-background new-face (face-background old-face frame) frame) | |
8494bbf1 RS |
304 | ;;; (set-face-background-pixmap |
305 | ;;; new-face (face-background-pixmap old-face frame) frame) | |
465fceed ER |
306 | (set-face-underline-p new-face (face-underline-p old-face frame) |
307 | frame)) | |
308 | new-face)) | |
309 | ||
310 | (defun face-equal (face1 face2 &optional frame) | |
ade516a1 | 311 | "True if the faces FACE1 and FACE2 display in the same way." |
465fceed ER |
312 | (setq face1 (internal-get-face face1 frame) |
313 | face2 (internal-get-face face2 frame)) | |
314 | (and (equal (face-foreground face1 frame) (face-foreground face2 frame)) | |
315 | (equal (face-background face1 frame) (face-background face2 frame)) | |
316 | (equal (face-font face1 frame) (face-font face2 frame)) | |
317 | (equal (face-background-pixmap face1 frame) | |
318 | (face-background-pixmap face2 frame)))) | |
319 | ||
320 | (defun face-differs-from-default-p (face &optional frame) | |
321 | "True if face FACE displays differently from the default face, on FRAME. | |
322 | A face is considered to be ``the same'' as the default face if it is | |
323 | actually specified in the same way (equivalent fonts, etc) or if it is | |
324 | fully unspecified, and thus inherits the attributes of any face it | |
325 | is displayed on top of." | |
326 | (let ((default (internal-get-face 'default frame))) | |
327 | (setq face (internal-get-face face frame)) | |
328 | (not (and (or (equal (face-foreground default frame) | |
329 | (face-foreground face frame)) | |
330 | (null (face-foreground face frame))) | |
331 | (or (equal (face-background default frame) | |
332 | (face-background face frame)) | |
333 | (null (face-background face frame))) | |
334 | (or (equal (face-font default frame) (face-font face frame)) | |
335 | (null (face-font face frame))) | |
8494bbf1 RS |
336 | ;;; (or (equal (face-background-pixmap default frame) |
337 | ;;; (face-background-pixmap face frame)) | |
338 | ;;; (null (face-background-pixmap face frame))) | |
465fceed ER |
339 | (equal (face-underline-p default frame) |
340 | (face-underline-p face frame)) | |
341 | )))) | |
342 | ||
343 | ||
344 | (defun invert-face (face &optional frame) | |
345 | "Swap the foreground and background colors of face FACE. | |
346 | If the face doesn't specify both foreground and background, then | |
8494bbf1 | 347 | set its foreground and background to the default background and foreground." |
465fceed ER |
348 | (interactive (list (read-face-name "Invert face: "))) |
349 | (setq face (internal-get-face face frame)) | |
350 | (let ((fg (face-foreground face frame)) | |
351 | (bg (face-background face frame))) | |
352 | (if (or fg bg) | |
353 | (progn | |
354 | (set-face-foreground face bg frame) | |
355 | (set-face-background face fg frame)) | |
8494bbf1 RS |
356 | (set-face-foreground face (or (face-background 'default frame) |
357 | (cdr (assq 'background-color (frame-parameters frame)))) | |
358 | frame) | |
359 | (set-face-background face (or (face-foreground 'default frame) | |
360 | (cdr (assq 'foreground-color (frame-parameters frame)))) | |
361 | frame))) | |
465fceed ER |
362 | face) |
363 | ||
364 | ||
365 | (defun internal-try-face-font (face font &optional frame) | |
366 | "Like set-face-font, but returns nil on failure instead of an error." | |
367 | (condition-case () | |
368 | (set-face-font face font frame) | |
369 | (error nil))) | |
465fceed ER |
370 | \f |
371 | ;; Manipulating font names. | |
372 | ||
373 | (defconst x-font-regexp nil) | |
374 | (defconst x-font-regexp-head nil) | |
375 | (defconst x-font-regexp-weight nil) | |
376 | (defconst x-font-regexp-slant nil) | |
377 | ||
378 | ;;; Regexps matching font names in "Host Portable Character Representation." | |
379 | ;;; | |
380 | (let ((- "[-?]") | |
381 | (foundry "[^-]+") | |
382 | (family "[^-]+") | |
383 | (weight "\\(bold\\|demibold\\|medium\\)") ; 1 | |
384 | ; (weight\? "\\(\\*\\|bold\\|demibold\\|medium\\|\\)") ; 1 | |
385 | (weight\? "\\([^-]*\\)") ; 1 | |
386 | (slant "\\([ior]\\)") ; 2 | |
387 | ; (slant\? "\\([ior?*]?\\)") ; 2 | |
388 | (slant\? "\\([^-]?\\)") ; 2 | |
389 | ; (swidth "\\(\\*\\|normal\\|semicondensed\\|\\)") ; 3 | |
390 | (swidth "\\([^-]*\\)") ; 3 | |
391 | ; (adstyle "\\(\\*\\|sans\\|\\)") ; 4 | |
392 | (adstyle "[^-]*") ; 4 | |
393 | (pixelsize "[0-9]+") | |
394 | (pointsize "[0-9][0-9]+") | |
395 | (resx "[0-9][0-9]+") | |
396 | (resy "[0-9][0-9]+") | |
397 | (spacing "[cmp?*]") | |
398 | (avgwidth "[0-9]+") | |
399 | (registry "[^-]+") | |
400 | (encoding "[^-]+") | |
401 | ) | |
402 | (setq x-font-regexp | |
403 | (concat "\\`\\*?[-?*]" | |
404 | foundry - family - weight\? - slant\? - swidth - adstyle - | |
405 | pixelsize - pointsize - resx - resy - spacing - registry - | |
406 | encoding "[-?*]\\*?\\'" | |
407 | )) | |
408 | (setq x-font-regexp-head | |
409 | (concat "\\`[-?*]" foundry - family - weight\? - slant\? | |
410 | "\\([-*?]\\|\\'\\)")) | |
411 | (setq x-font-regexp-slant (concat - slant -)) | |
412 | (setq x-font-regexp-weight (concat - weight -)) | |
413 | nil) | |
414 | ||
415 | (defun x-frob-font-weight (font which) | |
416 | (if (or (string-match x-font-regexp font) | |
417 | (string-match x-font-regexp-head font) | |
418 | (string-match x-font-regexp-weight font)) | |
419 | (concat (substring font 0 (match-beginning 1)) which | |
420 | (substring font (match-end 1))) | |
421 | nil)) | |
422 | ||
423 | (defun x-frob-font-slant (font which) | |
424 | (cond ((or (string-match x-font-regexp font) | |
425 | (string-match x-font-regexp-head font)) | |
426 | (concat (substring font 0 (match-beginning 2)) which | |
427 | (substring font (match-end 2)))) | |
428 | ((string-match x-font-regexp-slant font) | |
429 | (concat (substring font 0 (match-beginning 1)) which | |
430 | (substring font (match-end 1)))) | |
431 | (t nil))) | |
432 | ||
433 | ||
434 | (defun x-make-font-bold (font) | |
435 | "Given an X font specification, this attempts to make a `bold' version | |
436 | of it. If it fails, it returns nil." | |
437 | (x-frob-font-weight font "bold")) | |
438 | ||
439 | (defun x-make-font-demibold (font) | |
440 | "Given an X font specification, this attempts to make a `demibold' version | |
441 | of it. If it fails, it returns nil." | |
442 | (x-frob-font-weight font "demibold")) | |
443 | ||
444 | (defun x-make-font-unbold (font) | |
445 | "Given an X font specification, this attempts to make a non-bold version | |
446 | of it. If it fails, it returns nil." | |
447 | (x-frob-font-weight font "medium")) | |
448 | ||
449 | (defun x-make-font-italic (font) | |
450 | "Given an X font specification, this attempts to make an `italic' version | |
451 | of it. If it fails, it returns nil." | |
452 | (x-frob-font-slant font "i")) | |
453 | ||
454 | (defun x-make-font-oblique (font) ; you say tomayto... | |
455 | "Given an X font specification, this attempts to make an `italic' version | |
456 | of it. If it fails, it returns nil." | |
457 | (x-frob-font-slant font "o")) | |
458 | ||
459 | (defun x-make-font-unitalic (font) | |
460 | "Given an X font specification, this attempts to make a non-italic version | |
461 | of it. If it fails, it returns nil." | |
462 | (x-frob-font-slant font "r")) | |
463 | ||
464 | \f | |
465 | ;;; non-X-specific interface | |
466 | ||
bb9a81fc | 467 | (defun make-face-bold (face &optional frame noerror) |
465fceed | 468 | "Make the font of the given face be bold, if possible. |
bb9a81fc | 469 | If NOERROR is non-nil, return nil on failure." |
465fceed | 470 | (interactive (list (read-face-name "Make which face bold: "))) |
bb9a81fc JB |
471 | (let ((ofont (face-font face frame)) |
472 | font f2) | |
465fceed ER |
473 | (if (null frame) |
474 | (let ((frames (frame-list))) | |
475 | (while frames | |
476 | (make-face-bold face (car frames)) | |
477 | (setq frames (cdr frames)))) | |
478 | (setq face (internal-get-face face frame)) | |
bb9a81fc JB |
479 | (setq font (or (face-font face frame) |
480 | (face-font face t) | |
481 | (face-font 'default frame) | |
482 | (cdr (assq 'font (frame-parameters frame))))) | |
483 | (or (and (setq f2 (x-make-font-bold font)) | |
484 | (internal-try-face-font face f2)) | |
485 | (and (setq f2 (x-make-font-demibold font)) | |
486 | (internal-try-face-font face f2)))) | |
487 | (or (not (equal ofont (face-font face))) | |
488 | (and (not noerror) | |
489 | (error "No %s version of %S" face ofont))))) | |
490 | ||
491 | (defun make-face-italic (face &optional frame noerror) | |
465fceed | 492 | "Make the font of the given face be italic, if possible. |
bb9a81fc | 493 | If NOERROR is non-nil, return nil on failure." |
465fceed | 494 | (interactive (list (read-face-name "Make which face italic: "))) |
bb9a81fc JB |
495 | (let ((ofont (face-font face frame)) |
496 | font f2) | |
465fceed ER |
497 | (if (null frame) |
498 | (let ((frames (frame-list))) | |
499 | (while frames | |
500 | (make-face-italic face (car frames)) | |
501 | (setq frames (cdr frames)))) | |
502 | (setq face (internal-get-face face frame)) | |
bb9a81fc JB |
503 | (setq font (or (face-font face frame) |
504 | (face-font face t) | |
505 | (face-font 'default frame) | |
506 | (cdr (assq 'font (frame-parameters frame))))) | |
507 | (or (and (setq f2 (x-make-font-italic font)) | |
508 | (internal-try-face-font face f2)) | |
509 | (and (setq f2 (x-make-font-oblique font)) | |
510 | (internal-try-face-font face f2)))) | |
511 | (or (not (equal ofont (face-font face))) | |
512 | (and (not noerror) | |
513 | (error "No %s version of %S" face ofont))))) | |
514 | ||
515 | (defun make-face-bold-italic (face &optional frame noerror) | |
465fceed | 516 | "Make the font of the given face be bold and italic, if possible. |
bb9a81fc | 517 | If NOERROR is non-nil, return nil on failure." |
465fceed | 518 | (interactive (list (read-face-name "Make which face bold-italic: "))) |
bb9a81fc JB |
519 | (let ((ofont (face-font face frame)) |
520 | font f2 f3) | |
465fceed ER |
521 | (if (null frame) |
522 | (let ((frames (frame-list))) | |
523 | (while frames | |
524 | (make-face-bold-italic face (car frames)) | |
525 | (setq frames (cdr frames)))) | |
526 | (setq face (internal-get-face face frame)) | |
bb9a81fc | 527 | (setq font (or (face-font face frame) |
465fceed | 528 | (face-font face t) |
bb9a81fc JB |
529 | (face-font 'default frame) |
530 | (cdr (assq 'font (frame-parameters frame))))) | |
531 | (or (and (setq f2 (x-make-font-italic font)) | |
532 | (not (equal font f2)) | |
533 | (setq f3 (x-make-font-bold f2)) | |
534 | (not (equal f2 f3)) | |
535 | (internal-try-face-font face f3)) | |
536 | (and (setq f2 (x-make-font-oblique font)) | |
537 | (not (equal font f2)) | |
538 | (setq f3 (x-make-font-bold f2)) | |
539 | (not (equal f2 f3)) | |
540 | (internal-try-face-font face f3)) | |
541 | (and (setq f2 (x-make-font-italic font)) | |
542 | (not (equal font f2)) | |
543 | (setq f3 (x-make-font-demibold f2)) | |
544 | (not (equal f2 f3)) | |
545 | (internal-try-face-font face f3)) | |
546 | (and (setq f2 (x-make-font-oblique font)) | |
547 | (not (equal font f2)) | |
548 | (setq f3 (x-make-font-demibold f2)) | |
549 | (not (equal f2 f3)) | |
550 | (internal-try-face-font face f3)))) | |
551 | (or (not (equal ofont (face-font face))) | |
552 | (and (not noerror) | |
553 | (error "No %s version of %S" face ofont))))) | |
554 | ||
555 | (defun make-face-unbold (face &optional frame noerror) | |
465fceed | 556 | "Make the font of the given face be non-bold, if possible. |
bb9a81fc | 557 | If NOERROR is non-nil, return nil on failure." |
465fceed | 558 | (interactive (list (read-face-name "Make which face non-bold: "))) |
bb9a81fc JB |
559 | (let ((ofont (face-font face frame)) |
560 | font font1) | |
465fceed ER |
561 | (if (null frame) |
562 | (let ((frames (frame-list))) | |
563 | (while frames | |
564 | (make-face-unbold face (car frames)) | |
565 | (setq frames (cdr frames)))) | |
566 | (setq face (internal-get-face face frame)) | |
bb9a81fc JB |
567 | (setq font1 (or (face-font face frame) |
568 | (face-font face t) | |
569 | (face-font 'default frame) | |
570 | (cdr (assq 'font (frame-parameters frame))))) | |
571 | (setq font (x-make-font-unbold font1)) | |
572 | (if font (internal-try-face-font face font))) | |
573 | (or (not (equal ofont (face-font face))) | |
574 | (and (not noerror) | |
575 | (error "No %s version of %S" face ofont))))) | |
576 | ||
577 | (defun make-face-unitalic (face &optional frame noerror) | |
465fceed | 578 | "Make the font of the given face be non-italic, if possible. |
bb9a81fc | 579 | If NOERROR is non-nil, return nil on failure." |
465fceed | 580 | (interactive (list (read-face-name "Make which face non-italic: "))) |
bb9a81fc JB |
581 | (let ((ofont (face-font face frame)) |
582 | font font1) | |
465fceed ER |
583 | (if (null frame) |
584 | (let ((frames (frame-list))) | |
585 | (while frames | |
586 | (make-face-unitalic face (car frames)) | |
587 | (setq frames (cdr frames)))) | |
588 | (setq face (internal-get-face face frame)) | |
bb9a81fc JB |
589 | (setq font1 (or (face-font face frame) |
590 | (face-font face t) | |
591 | (face-font 'default frame) | |
592 | (cdr (assq 'font (frame-parameters frame))))) | |
593 | (setq font (x-make-font-unitalic font1)) | |
594 | (if font (internal-try-face-font face font))) | |
595 | (or (not (equal ofont (face-font face))) | |
596 | (and (not noerror) | |
597 | (error "No %s version of %S" face ofont))))) | |
465fceed ER |
598 | \f |
599 | ;;; Make the builtin faces; the C code knows these as faces 0, 1, and 2, | |
600 | ;;; respectively, so they must be the first three faces made. | |
601 | ||
e09c52a8 | 602 | (defun face-initialize () |
465fceed | 603 | (make-face 'default) |
ebea97d8 | 604 | (make-face 'modeline) |
465fceed ER |
605 | (make-face 'highlight) |
606 | ;; | |
607 | ;; These aren't really special in any way, but they're nice to have around. | |
608 | ;; The X-specific code is clever at them. | |
609 | ;; | |
610 | (make-face 'bold) | |
611 | (make-face 'italic) | |
612 | (make-face 'bold-italic) | |
578d09a6 | 613 | (make-face 'region) |
e09c52a8 RS |
614 | (make-face 'secondary-selection) |
615 | ||
578d09a6 | 616 | (setq region-face (face-id 'region)) |
8494bbf1 | 617 | |
e09c52a8 RS |
618 | ;; Set up the faces of all existing X Window frames. |
619 | (let ((frames (frame-list))) | |
620 | (while frames | |
621 | (if (eq (framep (car frames)) 'x) | |
622 | (x-initialize-frame-faces (car frames))) | |
623 | (setq frames (cdr frames))))) | |
624 | ||
465fceed ER |
625 | \f |
626 | ;;; This really belongs in setting a frame's own font. | |
627 | ;;; ;; | |
628 | ;;; ;; No font specified in the resource database; try to cope. | |
629 | ;;; ;; | |
630 | ;;; (internal-try-face-font default "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*" | |
631 | ;;; frame) | |
632 | ;;; (internal-try-face-font default "-*-courier-*-r-*-*-*-120-*-*-*-*-iso8859-*" | |
633 | ;;; frame) | |
634 | ;;; (internal-try-face-font default "-*-*-medium-r-*-*-*-120-*-*-m-*-iso8859-*" frame) | |
635 | ;;; (internal-try-face-font default "-*-*-medium-r-*-*-*-120-*-*-c-*-iso8859-*" frame) | |
636 | ;;; (internal-try-face-font default "-*-*-*-r-*-*-*-120-*-*-m-*-iso8859-*" frame) | |
637 | ;;; (internal-try-face-font default "-*-*-*-r-*-*-*-120-*-*-c-*-iso8859-*" frame) | |
638 | ;;; (internal-try-face-font default "-*-*-*-r-*-*-*-120-*-*-*-*-iso8859-*" frame) | |
639 | ||
640 | ||
641 | ;;; This is called from make-screen-initial-faces to make sure that the | |
642 | ;;; "default" and "modeline" faces for this screen have enough attributes | |
643 | ;;; specified for emacs to be able to display anything on it. This had | |
644 | ;;; better not signal an error. | |
645 | ;;; | |
646 | (defun x-initialize-frame-faces (frame) | |
647 | (or (face-differs-from-default-p 'bold frame) | |
bb9a81fc | 648 | (make-face-bold 'bold frame t) |
465fceed | 649 | ;; if default font is bold, then make the `bold' face be unbold. |
bb9a81fc | 650 | (make-face-unbold 'bold frame t) |
465fceed | 651 | ;; otherwise the luser specified one of the bogus font names |
bb9a81fc | 652 | (internal-x-complain-about-font 'bold frame) |
465fceed ER |
653 | ) |
654 | ||
655 | (or (face-differs-from-default-p 'italic frame) | |
bb9a81fc | 656 | (make-face-italic 'italic frame t) |
465fceed | 657 | (progn |
bb9a81fc JB |
658 | (make-face-bold 'italic frame t) |
659 | (internal-x-complain-about-font 'italic frame)) | |
465fceed ER |
660 | ) |
661 | ||
662 | (or (face-differs-from-default-p 'bold-italic frame) | |
bb9a81fc | 663 | (make-face-bold-italic 'bold-italic frame t) |
465fceed | 664 | ;; if we couldn't get a bold-italic version, try just bold. |
bb9a81fc | 665 | (make-face-bold 'bold-italic frame t) |
465fceed ER |
666 | ;; if we couldn't get bold or bold-italic, then that's probably because |
667 | ;; the default font is bold, so make the `bold-italic' face be unbold. | |
bb9a81fc JB |
668 | (and (make-face-unbold 'bold-italic frame t) |
669 | (make-face-italic 'bold-italic frame t)) | |
465fceed ER |
670 | ;; if that didn't work, try italic (can this ever happen? what the hell.) |
671 | (progn | |
bb9a81fc | 672 | (make-face-italic 'bold-italic frame t) |
465fceed | 673 | ;; then bitch and moan. |
bb9a81fc | 674 | (internal-x-complain-about-font 'bold-italic frame)) |
465fceed ER |
675 | ) |
676 | ||
677 | (or (face-differs-from-default-p 'highlight frame) | |
678 | (condition-case () | |
8494bbf1 RS |
679 | (condition-case () |
680 | (set-face-background 'highlight "darkseagreen2" frame) | |
681 | (error (set-face-background 'highlight "green" frame))) | |
682 | ;;; (set-face-background-pixmap 'highlight "gray1" frame) | |
465fceed ER |
683 | (error (invert-face 'highlight frame)))) |
684 | ||
578d09a6 | 685 | (or (face-differs-from-default-p 'region frame) |
465fceed | 686 | (condition-case () |
578d09a6 RS |
687 | (set-face-background 'region "gray" frame) |
688 | (error (invert-face 'region frame)))) | |
465fceed | 689 | |
ebea97d8 RS |
690 | (or (face-differs-from-default-p 'modeline frame) |
691 | (invert-face 'modeline frame)) | |
692 | ||
465fceed ER |
693 | (or (face-differs-from-default-p 'secondary-selection frame) |
694 | (condition-case () | |
8494bbf1 RS |
695 | (condition-case () |
696 | ;; some older X servers don't have this one. | |
697 | (set-face-background 'secondary-selection "paleturquoise" | |
698 | frame) | |
699 | (error | |
700 | (set-face-background 'secondary-selection "green" frame))) | |
701 | ;;; (set-face-background-pixmap 'secondary-selection "gray1" frame) | |
465fceed | 702 | (error (invert-face 'secondary-selection frame)))) |
bb9a81fc | 703 | ) |
465fceed | 704 | |
bb9a81fc | 705 | (defun internal-x-complain-about-font (face frame) |
8494bbf1 RS |
706 | ;;; It's annoying to bother the user about this, |
707 | ;;; since it happens under normal circumstances. | |
708 | ;;; (message "No %s version of %S" | |
709 | ;;; face | |
710 | ;;; (or (face-font face frame) | |
711 | ;;; (face-font face t) | |
712 | ;;; (face-font 'default frame) | |
713 | ;;; (cdr (assq 'font (frame-parameters frame))))) | |
714 | ;;; (sit-for 1) | |
715 | ) | |
465fceed ER |
716 | \f |
717 | ;; Like x-create-frame but also set up the faces. | |
718 | ||
719 | (defun x-create-frame-with-faces (&optional parameters) | |
e09c52a8 RS |
720 | (if (null global-face-data) |
721 | (x-create-frame parameters) | |
722 | (let* ((frame (x-create-frame parameters)) | |
723 | (faces (copy-alist global-face-data)) | |
ebea97d8 | 724 | (rest faces)) |
e09c52a8 RS |
725 | (set-frame-face-alist frame faces) |
726 | ||
1dd6d2a2 RS |
727 | (if (cdr (or (assq 'reverse parameters) |
728 | (assq 'reverse default-frame-alist))) | |
729 | (let ((params (frame-parameters frame))) | |
730 | (modify-frame-parameters | |
731 | frame | |
732 | (list (cons 'foreground-color (cdr (assq 'background-color params))) | |
733 | (cons 'background-color (cdr (assq 'foreground-color params))) | |
734 | (cons 'mouse-color (cdr (assq 'background-color params))) | |
735 | (cons 'cursor-color (cdr (assq 'background-color params))) | |
736 | (cons 'border-color (cdr (assq 'background-color params))))))) | |
737 | ||
e09c52a8 RS |
738 | ;; Copy the vectors that represent the faces. |
739 | ;; Also fill them in from X resources. | |
740 | (while rest | |
741 | (setcdr (car rest) (copy-sequence (cdr (car rest)))) | |
742 | (make-face-x-resource-internal (cdr (car rest)) frame t) | |
743 | (setq rest (cdr rest))) | |
744 | ||
e09c52a8 RS |
745 | (x-initialize-frame-faces frame) |
746 | ||
e09c52a8 RS |
747 | frame))) |
748 | ||
749 | ;; If we are already using x-window frames, initialize faces for them. | |
750 | (if (eq (framep (selected-frame)) 'x) | |
751 | (face-initialize)) | |
465fceed | 752 | |
f0138172 JB |
753 | (provide 'faces) |
754 | ||
465fceed | 755 | ;;; faces.el ends here |