1 ;;; faces.el --- Lisp interface to the C "face" structure
3 ;; Copyright (C) 1992-4, 1997 Free Software Foundation, Inc.
4 ;; Copyright (C) 1995 Board of Trustees, University of Illinois
5 ;; Copyright (C) 1995, 1996 Ben Wing
7 ;; Author: Ben Wing <ben@xemacs.org>
8 ;; Keywords: faces, internal, dumped
10 ;; This file is part of XEmacs.
12 ;; XEmacs is free software; you can redistribute it and/or modify it
13 ;; under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
17 ;; XEmacs is distributed in the hope that it will be useful, but
18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 ;; General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with XEmacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 ;; Boston, MA 02111-1307, USA.
27 ;;; Synched up with: Not synched with FSF. Almost completely divergent.
31 ;; This file is dumped with XEmacs.
33 ;; face implementation #1 (used Lisp vectors and parallel C vectors;
34 ;; FSFmacs still uses this) authored by Jamie Zawinski <jwz@jwz.org>
35 ;; pre Lucid-Emacs 19.0.
37 ;; face implementation #2 (used one face object per frame per face)
38 ;; authored by Jamie Zawinski for 19.9.
40 ;; face implementation #3 (use one face object per face) originally
41 ;; authored for 19.12 by Chuck Thompson <cthomp@cs.uiuc.edu>,
42 ;; rewritten by Ben Wing with the advent of specifiers.
45 ;;; Some stuff in FSF's faces.el is in our x-faces.el.
50 "Support for multiple text attributes (fonts, colors, ...)
51 Such a collection of attributes is called a \"face\"."
55 (defun read-face-name (prompt)
57 (while (= (length face) 0) ; nil or ""
58 (setq face (completing-read prompt
59 (mapcar (lambda (x) (list (symbol-name x)))
64 (defun face-interactive (what &optional bool)
65 (let* ((fn (intern (concat "face-" what "-instance")))
66 (face (read-face-name (format "Set %s of face: " what)))
67 (default (if (fboundp fn)
68 ;; #### we should distinguish here between
69 ;; explicitly setting the value to be the
70 ;; same as the default face's value, and
71 ;; not setting a value at all.
74 (y-or-n-p (format "Should face %s be %s? "
75 (symbol-name face) bool))
76 (read-string (format "Set %s of face %s to: "
77 what (symbol-name face))
78 (cond ((font-instance-p default)
79 (font-instance-name default))
80 ((color-instance-p default)
81 (color-instance-name default))
82 ((image-instance-p default)
83 (image-instance-file-name default))
85 (list face (if (equal value "") nil value))))
87 (defconst built-in-face-specifiers
88 (built-in-face-specifiers)
89 "A list of the built-in face properties that are specifiers.")
91 (defun face-property (face property &optional locale tag-set exact-p)
92 "Return FACE's value of the given PROPERTY.
94 If LOCALE is omitted, the FACE's actual value for PROPERTY will be
95 returned. For built-in properties, this will be a specifier object
96 of a type appropriate to the property (e.g. a font or color
97 specifier). For other properties, this could be anything.
99 If LOCALE is supplied, then instead of returning the actual value,
100 the specification(s) for the given locale or locale type will
101 be returned. This will only work if the actual value of
102 PROPERTY is a specifier (this will always be the case for built-in
103 properties, but not or not may apply to user-defined properties).
104 If the actual value of PROPERTY is not a specifier, this value
105 will simply be returned regardless of LOCALE.
107 The return value will be a list of instantiators (e.g. strings
108 specifying a font or color name), or a list of specifications, each
109 of which is a cons of a locale and a list of instantiators.
110 Specifically, if LOCALE is a particular locale (a buffer, window,
111 frame, device, or 'global), a list of instantiators for that locale
112 will be returned. Otherwise, if LOCALE is a locale type (one of
113 the symbols 'buffer, 'window, 'frame, or 'device), the specifications
114 for all locales of that type will be returned. Finally, if LOCALE is
115 'all, the specifications for all locales of all types will be returned.
117 The specifications in a specifier determine what the value of
118 PROPERTY will be in a particular \"domain\" or set of circumstances,
119 which is typically a particular Emacs window along with the buffer
120 it contains and the frame and device it lies within. The value is
121 derived from the instantiator associated with the most specific
122 locale (in the order buffer, window, frame, device, and 'global)
123 that matches the domain in question. In other words, given a domain
124 (i.e. an Emacs window, usually), the specifier for PROPERTY will
125 first be searched for a specification whose locale is the buffer
126 contained within that window; then for a specification whose locale
127 is the window itself; then for a specification whose locale is the
128 frame that the window is contained within; etc. The first
129 instantiator that is valid for the domain (usually this means that
130 the instantiator is recognized by the device [i.e. MS Windows, the X
131 server or TTY device] that the domain is on. The function
132 `face-property-instance' actually does all this, and is used to
133 determine how to display the face.
135 See `set-face-property' for the built-in property-names."
137 (setq face (get-face face))
138 (let ((value (get face property)))
140 (or (memq property built-in-face-specifiers)
142 (setq value (specifier-specs value locale tag-set exact-p)))
145 (defun convert-face-property-into-specifier (face property)
146 "Convert PROPERTY on FACE into a specifier, if it's not already."
147 (setq face (get-face face))
148 (let ((specifier (get face property)))
149 ;; if a user-property does not have a specifier but a
150 ;; locale was specified, put a specifier there.
151 ;; If there was already a value there, convert it to a
152 ;; specifier with the value as its 'global instantiator.
153 (unless (specifierp specifier)
154 (let ((new-specifier (make-specifier 'generic)))
155 (if (or (not (null specifier))
156 ;; make sure the nil returned from `get' wasn't
157 ;; actually the value of the property
158 (null (get face property t)))
159 (add-spec-to-specifier new-specifier specifier))
160 (setq specifier new-specifier)
161 (put face property specifier)))))
163 (defun face-property-instance (face property
164 &optional domain default no-fallback)
165 "Return the instance of FACE's PROPERTY in the specified DOMAIN.
167 Under most circumstances, DOMAIN will be a particular window,
168 and the returned instance describes how the specified property
169 actually is displayed for that window and the particular buffer
170 in it. Note that this may not be the same as how the property
171 appears when the buffer is displayed in a different window or
172 frame, or how the property appears in the same window if you
173 switch to another buffer in that window; and in those cases,
174 the returned instance would be different.
176 The returned instance will typically be a color-instance,
177 font-instance, or pixmap-instance object, and you can query
178 it using the appropriate object-specific functions. For example,
179 you could use `color-instance-rgb-components' to find out the
180 RGB (red, green, and blue) components of how the 'background
181 property of the 'highlight face is displayed in a particular
182 window. The results might be different from the results
183 you would get for another window (perhaps the user
184 specified a different color for the frame that window is on;
185 or perhaps the same color was specified but the window is
186 on a different X server, and that X server has different RGB
187 values for the color from this one).
189 DOMAIN defaults to the selected window if omitted.
191 DOMAIN can be a frame or device, instead of a window. The value
192 returned for a such a domain is used in special circumstances
193 when a more specific domain does not apply; for example, a frame
194 value might be used for coloring a toolbar, which is conceptually
195 attached to a frame rather than a particular window. The value
196 is also useful in determining what the value would be for a
197 particular window within the frame or device, if it is not
198 overridden by a more specific specification.
200 If PROPERTY does not name a built-in property, its value will
201 simply be returned unless it is a specifier object, in which case
202 it will be instanced using `specifier-instance'.
204 Optional arguments DEFAULT and NO-FALLBACK are the same as in
205 `specifier-instance'."
207 (setq face (get-face face))
208 (let ((value (get face property)))
209 (if (specifierp value)
210 (setq value (specifier-instance value domain default no-fallback)))
213 (defun face-property-matching-instance (face property matchspec
214 &optional domain default
216 "Return the instance of FACE's PROPERTY matching MATCHSPEC in DOMAIN.
217 Currently the only useful value for MATCHSPEC is a charset, when used
218 in conjunction with the face's font; this allows you to retrieve a
219 font that can be used to display a particular charset, rather than just
222 Other than MATCHSPEC, this function is identical to `face-property-instance'.
223 See also `specifier-matching-instance' for a fuller description of the
226 (setq face (get-face face))
227 (let ((value (get face property)))
228 (if (specifierp value)
229 (setq value (specifier-matching-instance value matchspec domain
230 default no-fallback)))
233 (defun set-face-property (face property value &optional locale tag-set
235 "Change a property of FACE.
237 NOTE: If you want to remove a property from a face, use `remove-face-property'
238 rather than attempting to set a value of nil for the property.
240 For built-in properties, the actual value of the property is a
241 specifier and you cannot change this; but you can change the
242 specifications within the specifier, and that is what this function
243 will do. For user-defined properties, you can use this function
244 to either change the actual value of the property or, if this value
245 is a specifier, change the specifications within it.
247 If PROPERTY is a built-in property, the specifications to be added to
248 this property can be supplied in many different ways:
250 -- If VALUE is a simple instantiator (e.g. a string naming a font or
251 color) or a list of instantiators, then the instantiator(s) will
252 be added as a specification of the property for the given LOCALE
253 (which defaults to 'global if omitted).
254 -- If VALUE is a list of specifications (each of which is a cons of
255 a locale and a list of instantiators), then LOCALE must be nil
256 (it does not make sense to explicitly specify a locale in this
257 case), and specifications will be added as given.
258 -- If VALUE is a specifier (as would be returned by `face-property'
259 if no LOCALE argument is given), then some or all of the
260 specifications in the specifier will be added to the property.
261 In this case, the function is really equivalent to
262 `copy-specifier' and LOCALE has the same semantics (if it is
263 a particular locale, the specification for the locale will be
264 copied; if a locale type, specifications for all locales of
265 that type will be copied; if nil or 'all, then all
266 specifications will be copied).
268 HOW-TO-ADD should be either nil or one of the symbols 'prepend,
269 'append, 'remove-tag-set-prepend, 'remove-tag-set-append, 'remove-locale,
270 'remove-locale-type, or 'remove-all. See `copy-specifier' and
271 `add-spec-to-specifier' for a description of what each of
272 these means. Most of the time, you do not need to worry about
273 this argument; the default behavior usually is fine.
275 In general, it is OK to pass an instance object (e.g. as returned
276 by `face-property-instance') as an instantiator in place of
277 an actual instantiator. In such a case, the instantiator used
278 to create that instance object will be used (for example, if
279 you set a font-instance object as the value of the 'font
280 property, then the font name used to create that object will
281 be used instead). If some cases, however, doing this
282 conversion does not make sense, and this will be noted in
283 the documentation for particular types of instance objects.
285 If PROPERTY is not a built-in property, then this function will
286 simply set its value if LOCALE is nil. However, if LOCALE is
287 given, then this function will attempt to add VALUE as the
288 instantiator for the given LOCALE, using `add-spec-to-specifier'.
289 If the value of the property is not a specifier, it will
290 automatically be converted into a 'generic specifier.
293 The following symbols have predefined meanings:
295 foreground The foreground color of the face.
296 For valid instantiators, see `make-color-specifier'.
298 background The background color of the face.
299 For valid instantiators, see `make-color-specifier'.
301 font The font used to display text covered by this face.
302 For valid instantiators, see `make-font-specifier'.
304 display-table The display table of the face.
305 This should be a vector of 256 elements.
307 background-pixmap The pixmap displayed in the background of the face.
308 Only used by faces on X and MS Windows devices.
309 For valid instantiators, see `make-image-specifier'.
311 underline Underline all text covered by this face.
312 For valid instantiators, see `make-face-boolean-specifier'.
314 strikethru Draw a line through all text covered by this face.
315 For valid instantiators, see `make-face-boolean-specifier'.
317 highlight Highlight all text covered by this face.
318 Only used by faces on TTY devices.
319 For valid instantiators, see `make-face-boolean-specifier'.
321 dim Dim all text covered by this face.
322 For valid instantiators, see `make-face-boolean-specifier'.
324 blinking Blink all text covered by this face.
325 Only used by faces on TTY devices.
326 For valid instantiators, see `make-face-boolean-specifier'.
328 reverse Reverse the foreground and background colors.
329 Only used by faces on TTY devices.
330 For valid instantiators, see `make-face-boolean-specifier'.
332 doc-string Description of what the face's normal use is.
333 NOTE: This is not a specifier, unlike all
334 the other built-in properties, and cannot
335 contain locale-specific values."
337 (setq face (get-face face))
338 (if (memq property built-in-face-specifiers)
339 (set-specifier (get face property) value locale tag-set how-to-add)
341 ;; This section adds user defined properties.
343 (put face property value)
344 (convert-face-property-into-specifier face property)
345 (add-spec-to-specifier (get face property) value locale tag-set
349 (defun remove-face-property (face property &optional locale tag-set exact-p)
350 "Remove a property from FACE.
351 For built-in properties, this is analogous to `remove-specifier'.
352 See `remove-specifier' for the meaning of the LOCALE, TAG-SET, and EXACT-P
354 (or locale (setq locale 'all))
355 (if (memq property built-in-face-specifiers)
356 (remove-specifier (face-property face property) locale tag-set exact-p)
358 (remprop (get-face face) property)
359 (convert-face-property-into-specifier face property)
360 (remove-specifier (face-property face property) locale tag-set
363 (defun reset-face (face &optional locale tag-set exact-p)
364 "Clear all existing built-in specifications from FACE.
365 This makes FACE inherit all its display properties from 'default.
366 WARNING: Be absolutely sure you want to do this!!! It is a dangerous
367 operation and is not undoable.
369 The arguments LOCALE, TAG-SET and EXACT-P are the same as for
372 (remove-specifier (face-property face x) locale tag-set exact-p))
373 built-in-face-specifiers)
376 (defun set-face-parent (face parent &optional locale tag-set how-to-add)
377 "Set the parent of FACE to PARENT, for all properties.
378 This makes all properties of FACE inherit from PARENT."
379 (setq parent (get-face parent))
381 (set-face-property face x (vector parent) locale tag-set
384 (delq 'background-pixmap
385 (copy-sequence built-in-face-specifiers))))
386 (set-face-background-pixmap face (vector 'inherit ':face parent)
387 locale tag-set how-to-add)
390 (defun face-doc-string (face)
391 "Return the documentation string for FACE."
392 (face-property face 'doc-string))
394 (defun set-face-doc-string (face doc-string)
395 "Change the documentation string of FACE to DOC-STRING."
396 (interactive (face-interactive "doc-string"))
397 (set-face-property face 'doc-string doc-string))
399 (defun face-font-name (face &optional domain charset)
400 "Return the font name of FACE in DOMAIN, or nil if it is unspecified.
401 DOMAIN is as in `face-font-instance'."
402 (let ((f (face-font-instance face domain charset)))
403 (and f (font-instance-name f))))
405 (defun face-font (face &optional locale tag-set exact-p)
406 "Return the font of FACE in LOCALE, or nil if it is unspecified.
408 FACE may be either a face object or a symbol representing a face.
410 LOCALE may be a locale (the instantiators for that particular locale
411 will be returned), a locale type (the specifications for all locales
412 of that type will be returned), 'all (all specifications will be
413 returned), or nil (the actual specifier object will be returned).
415 See `face-property' for more information."
416 (face-property face 'font locale tag-set exact-p))
418 (defun face-font-instance (face &optional domain charset)
419 "Return the instance of FACE's font in DOMAIN.
421 FACE may be either a face object or a symbol representing a face.
423 Normally DOMAIN will be a window or nil (meaning the selected window),
424 and an instance object describing how the font appears in that
425 particular window and buffer will be returned.
427 See `face-property-instance' for more information."
429 (face-property-matching-instance face 'font charset domain)
430 (face-property-instance face 'font domain)))
432 (defun set-face-font (face font &optional locale tag-set how-to-add)
433 "Change the font of FACE to FONT in LOCALE.
435 FACE may be either a face object or a symbol representing a face.
437 FONT should be an instantiator (see `make-font-specifier'), a list of
438 instantiators, an alist of specifications (each mapping a
439 locale to an instantiator list), or a font specifier object.
441 If FONT is an alist, LOCALE must be omitted. If FONT is a
442 specifier object, LOCALE can be a locale, a locale type, 'all,
443 or nil; see `copy-specifier' for its semantics. Otherwise LOCALE
444 specifies the locale under which the specified instantiator(s)
445 will be added, and defaults to 'global.
447 See `set-face-property' for more information."
448 (interactive (face-interactive "font"))
449 (set-face-property face 'font font locale tag-set how-to-add))
451 (defun face-foreground (face &optional locale tag-set exact-p)
452 "Return the foreground of FACE in LOCALE, or nil if it is unspecified.
454 FACE may be either a face object or a symbol representing a face.
456 LOCALE may be a locale (the instantiators for that particular locale
457 will be returned), a locale type (the specifications for all locales
458 of that type will be returned), 'all (all specifications will be
459 returned), or nil (the actual specifier object will be returned).
461 See `face-property' for more information."
462 (face-property face 'foreground locale tag-set exact-p))
464 (defun face-foreground-instance (face &optional domain default no-fallback)
465 "Return the instance of FACE's foreground in DOMAIN.
467 FACE may be either a face object or a symbol representing a face.
469 Normally DOMAIN will be a window or nil (meaning the selected window),
470 and an instance object describing how the foreground appears in that
471 particular window and buffer will be returned.
473 See `face-property-instance' for more information."
474 (face-property-instance face 'foreground domain default no-fallback))
476 (defun face-foreground-name (face &optional domain default no-fallback)
477 "Return the name of FACE's foreground color in DOMAIN.
479 FACE may be either a face object or a symbol representing a face.
481 Normally DOMAIN will be a window or nil (meaning the selected window),
482 and an instance object describing how the background appears in that
483 particular window and buffer will be returned.
485 See `face-property-instance' for more information."
486 (color-instance-name (face-foreground-instance
487 face domain default no-fallback)))
489 (defun set-face-foreground (face color &optional locale tag-set how-to-add)
490 "Change the foreground color of FACE to COLOR in LOCALE.
492 FACE may be either a face object or a symbol representing a face.
494 COLOR should be an instantiator (see `make-color-specifier'), a list of
495 instantiators, an alist of specifications (each mapping a locale to
496 an instantiator list), or a color specifier object.
498 If COLOR is an alist, LOCALE must be omitted. If COLOR is a
499 specifier object, LOCALE can be a locale, a locale type, 'all,
500 or nil; see `copy-specifier' for its semantics. Otherwise LOCALE
501 specifies the locale under which the specified instantiator(s)
502 will be added, and defaults to 'global.
504 See `set-face-property' for more information."
505 (interactive (face-interactive "foreground"))
506 (set-face-property face 'foreground color locale tag-set how-to-add))
508 (defun face-background (face &optional locale tag-set exact-p)
509 "Return the background color of FACE in LOCALE, or nil if it is unspecified.
511 FACE may be either a face object or a symbol representing a face.
513 LOCALE may be a locale (the instantiators for that particular locale
514 will be returned), a locale type (the specifications for all locales
515 of that type will be returned), 'all (all specifications will be
516 returned), or nil (the actual specifier object will be returned).
518 See `face-property' for more information."
519 (face-property face 'background locale tag-set exact-p))
521 (defun face-background-instance (face &optional domain default no-fallback)
522 "Return the instance of FACE's background in DOMAIN.
524 FACE may be either a face object or a symbol representing a face.
526 Normally DOMAIN will be a window or nil (meaning the selected window),
527 and an instance object describing how the background appears in that
528 particular window and buffer will be returned.
530 See `face-property-instance' for more information."
531 (face-property-instance face 'background domain default no-fallback))
533 (defun face-background-name (face &optional domain default no-fallback)
534 "Return the name of FACE's background color in DOMAIN.
536 FACE may be either a face object or a symbol representing a face.
538 Normally DOMAIN will be a window or nil (meaning the selected window),
539 and an instance object describing how the background appears in that
540 particular window and buffer will be returned.
542 See `face-property-instance' for more information."
543 (color-instance-name (face-background-instance
544 face domain default no-fallback)))
546 (defun set-face-background (face color &optional locale tag-set how-to-add)
547 "Change the background color of FACE to COLOR in LOCALE.
549 FACE may be either a face object or a symbol representing a face.
551 COLOR should be an instantiator (see `make-color-specifier'), a list of
552 instantiators, an alist of specifications (each mapping a locale to
553 an instantiator list), or a color specifier object.
555 If COLOR is an alist, LOCALE must be omitted. If COLOR is a
556 specifier object, LOCALE can be a locale, a locale type, 'all,
557 or nil; see `copy-specifier' for its semantics. Otherwise LOCALE
558 specifies the locale under which the specified instantiator(s)
559 will be added, and defaults to 'global.
561 See `set-face-property' for more information."
562 (interactive (face-interactive "background"))
563 (set-face-property face 'background color locale tag-set how-to-add))
565 (defun face-background-pixmap (face &optional locale tag-set exact-p)
566 "Return the background pixmap of FACE in LOCALE, or nil if it is unspecified.
567 This property is only used on window system devices.
569 FACE may be either a face object or a symbol representing a face.
571 LOCALE may be a locale (the instantiators for that particular locale
572 will be returned), a locale type (the specifications for all locales
573 of that type will be returned), 'all (all specifications will be
574 returned), or nil (the actual specifier object will be returned).
576 See `face-property' for more information."
577 (face-property face 'background-pixmap locale tag-set exact-p))
579 (defun face-background-pixmap-instance (face &optional domain default
581 "Return the instance of FACE's background pixmap in DOMAIN.
583 FACE may be either a face object or a symbol representing a face.
585 Normally DOMAIN will be a window or nil (meaning the selected window),
586 and an instance object describing how the background appears in that
587 particular window and buffer will be returned.
589 See `face-property-instance' for more information."
590 (face-property-instance face 'background-pixmap domain default no-fallback))
592 (defun set-face-background-pixmap (face pixmap &optional locale tag-set
594 "Change the background pixmap of FACE to PIXMAP in LOCALE.
595 This property is only used on window system devices.
597 FACE may be either a face object or a symbol representing a face.
599 PIXMAP should be an instantiator (see `make-image-specifier'), a list
600 of instantiators, an alist of specifications (each mapping a locale
601 to an instantiator list), or an image specifier object.
603 If PIXMAP is an alist, LOCALE must be omitted. If PIXMAP is a
604 specifier object, LOCALE can be a locale, a locale type, 'all,
605 or nil; see `copy-specifier' for its semantics. Otherwise LOCALE
606 specifies the locale under which the specified instantiator(s)
607 will be added, and defaults to 'global.
609 See `set-face-property' for more information."
610 (interactive (face-interactive "background-pixmap"))
611 (set-face-property face 'background-pixmap pixmap locale tag-set how-to-add))
613 (defun face-display-table (face &optional locale tag-set exact-p)
614 "Return the display table of FACE in LOCALE.
616 A vector (as returned by `make-display-table') will be returned.
618 LOCALE may be a locale (the instantiators for that particular locale
619 will be returned), a locale type (the specifications for all locales
620 of that type will be returned), 'all (all specifications will be
621 returned), or nil (the actual specifier object will be returned).
623 See `face-property' for more information."
624 (face-property face 'display-table locale tag-set exact-p))
626 (defun face-display-table-instance (face &optional domain default no-fallback)
627 "Return the instance of FACE's display table in DOMAIN.
628 A vector (as returned by `make-display-table') will be returned.
630 See `face-property-instance' for the semantics of the DOMAIN argument."
631 (face-property-instance face 'display-table domain default no-fallback))
633 (defun set-face-display-table (face display-table &optional locale tag-set
635 "Change the display table of FACE to DISPLAY-TABLE in LOCALE.
636 DISPLAY-TABLE should be a vector as returned by `make-display-table'.
638 See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
639 HOW-TO-ADD arguments."
640 (interactive (face-interactive "display-table"))
641 (set-face-property face 'display-table display-table locale tag-set
644 ;; The following accessors and mutators are, IMHO, good
645 ;; implementation. Cf. with `make-face-bold'.
647 (defun face-underline-p (face &optional domain default no-fallback)
648 "Return t if FACE is underlined in DOMAIN.
649 See `face-property-instance' for the semantics of the DOMAIN argument."
650 (face-property-instance face 'underline domain default no-fallback))
652 (defun set-face-underline-p (face underline-p &optional locale tag-set
654 "Change the underline property of FACE to UNDERLINE-P.
655 UNDERLINE-P is normally a face-boolean instantiator; see
656 `make-face-boolean-specifier'.
657 See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
658 HOW-TO-ADD arguments."
659 (interactive (face-interactive "underline-p" "underlined"))
660 (set-face-property face 'underline underline-p locale tag-set how-to-add))
662 (defun face-strikethru-p (face &optional domain default no-fallback)
663 "Return t if FACE is strikethru-d (i.e. struck through) in DOMAIN.
664 See `face-property-instance' for the semantics of the DOMAIN argument."
665 (face-property-instance face 'strikethru domain default no-fallback))
667 (defun set-face-strikethru-p (face strikethru-p &optional locale tag-set
669 "Change whether FACE is strikethru-d (i.e. struck through) in LOCALE.
670 STRIKETHRU-P is normally a face-boolean instantiator; see
671 `make-face-boolean-specifier'.
672 See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
673 HOW-TO-ADD arguments."
674 (interactive (face-interactive "strikethru-p" "strikethru-d"))
675 (set-face-property face 'strikethru strikethru-p locale tag-set how-to-add))
677 (defun face-highlight-p (face &optional domain default no-fallback)
678 "Return t if FACE is highlighted in DOMAIN (TTY domains only).
679 See `face-property-instance' for the semantics of the DOMAIN argument."
680 (face-property-instance face 'highlight domain default no-fallback))
682 (defun set-face-highlight-p (face highlight-p &optional locale tag-set
684 "Change whether FACE is highlighted in LOCALE (TTY locales only).
685 HIGHLIGHT-P is normally a face-boolean instantiator; see
686 `make-face-boolean-specifier'.
687 See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
688 HOW-TO-ADD arguments."
689 (interactive (face-interactive "highlight-p" "highlighted"))
690 (set-face-property face 'highlight highlight-p locale tag-set how-to-add))
692 (defun face-dim-p (face &optional domain default no-fallback)
693 "Return t if FACE is dimmed in DOMAIN.
694 See `face-property-instance' for the semantics of the DOMAIN argument."
695 (face-property-instance face 'dim domain default no-fallback))
697 (defun set-face-dim-p (face dim-p &optional locale tag-set how-to-add)
698 "Change whether FACE is dimmed in LOCALE.
699 DIM-P is normally a face-boolean instantiator; see
700 `make-face-boolean-specifier'.
701 See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
702 HOW-TO-ADD arguments."
703 (interactive (face-interactive "dim-p" "dimmed"))
704 (set-face-property face 'dim dim-p locale tag-set how-to-add))
706 (defun face-blinking-p (face &optional domain default no-fallback)
707 "Return t if FACE is blinking in DOMAIN (TTY domains only).
708 See `face-property-instance' for the semantics of the DOMAIN argument."
709 (face-property-instance face 'blinking domain default no-fallback))
711 (defun set-face-blinking-p (face blinking-p &optional locale tag-set
713 "Change whether FACE is blinking in LOCALE (TTY locales only).
714 BLINKING-P is normally a face-boolean instantiator; see
715 `make-face-boolean-specifier'.
716 See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
717 HOW-TO-ADD arguments."
718 (interactive (face-interactive "blinking-p" "blinking"))
719 (set-face-property face 'blinking blinking-p locale tag-set how-to-add))
721 (defun face-reverse-p (face &optional domain default no-fallback)
722 "Return t if FACE is reversed in DOMAIN (TTY domains only).
723 See `face-property-instance' for the semantics of the DOMAIN argument."
724 (face-property-instance face 'reverse domain default no-fallback))
726 (defun set-face-reverse-p (face reverse-p &optional locale tag-set how-to-add)
727 "Change whether FACE is reversed in LOCALE (TTY locales only).
728 REVERSE-P is normally a face-boolean instantiator; see
729 `make-face-boolean-specifier'.
730 See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
731 HOW-TO-ADD arguments."
732 (interactive (face-interactive "reverse-p" "reversed"))
733 (set-face-property face 'reverse reverse-p locale tag-set how-to-add))
736 (defun face-property-equal (face1 face2 prop domain)
737 (equal (face-property-instance face1 prop domain)
738 (face-property-instance face2 prop domain)))
740 (defun face-equal-loop (props face1 face2 domain)
742 (face-property-equal face1 face2 (car props) domain))
743 (setq props (cdr props)))
746 (defun face-equal (face1 face2 &optional domain)
747 "Return t if FACE1 and FACE2 will display in the same way in DOMAIN.
748 See `face-property-instance' for the semantics of the DOMAIN argument."
749 (if (null domain) (setq domain (selected-window)))
750 (if (not (valid-specifier-domain-p domain))
751 (error "Invalid specifier domain"))
752 (let ((device (dfw-device domain))
753 (common-props '(foreground background font display-table underline
755 (win-props '(background-pixmap strikethru))
756 (tty-props '(highlight blinking reverse)))
758 ;; First check the properties which are used in common between the
759 ;; x and tty devices. Then, check those properties specific to
760 ;; the particular device type.
761 (and (face-equal-loop common-props face1 face2 domain)
762 (cond ((eq 'tty (device-type device))
763 (face-equal-loop tty-props face1 face2 domain))
764 ((or (eq 'x (device-type device))
765 (eq 'mswindows (device-type device)))
766 (face-equal-loop win-props face1 face2 domain))
769 (defun face-differs-from-default-p (face &optional domain)
770 "Return t if FACE will display differently from the default face in DOMAIN.
771 See `face-property-instance' for the semantics of the DOMAIN argument."
772 (not (face-equal face 'default domain)))
774 ; moved from x-faces.el
775 (defun try-font-name (name &optional device)
776 ;; yes, name really should be here twice.
777 (and name (make-font-instance name device t) name))
780 ;; This function is a terrible, disgusting hack!!!! Need to
781 ;; separate out the font elements as separate face properties!
783 ;; WE DEMAND LEXICAL SCOPING!!!
784 ;; WE DEMAND LEXICAL SCOPING!!!
785 ;; WE DEMAND LEXICAL SCOPING!!!
786 ;; WE DEMAND LEXICAL SCOPING!!!
787 ;; WE DEMAND LEXICAL SCOPING!!!
788 ;; WE DEMAND LEXICAL SCOPING!!!
789 ;; WE DEMAND LEXICAL SCOPING!!!
790 ;; WE DEMAND LEXICAL SCOPING!!!
791 ;; WE DEMAND LEXICAL SCOPING!!!
792 ;; WE DEMAND LEXICAL SCOPING!!!
793 ;; WE DEMAND LEXICAL SCOPING!!!
794 ;; WE DEMAND LEXICAL SCOPING!!!
795 ;; WE DEMAND LEXICAL SCOPING!!!
796 ;; WE DEMAND LEXICAL SCOPING!!!
797 ;; WE DEMAND LEXICAL SCOPING!!!
798 (defun frob-face-property (face property func device-tags &optional
800 "Change the specifier for FACE's PROPERTY according to FUNC, in LOCALE.
801 This function is ugly and messy and is primarily used as an internal
802 helper function for `make-face-bold' et al., so you probably don't
803 want to use it or read the rest of the documentation. But if you do ...
805 FUNC should be a function of two arguments (an instance and a device)
806 that returns a modified name that is valid for the given device.
807 If LOCALE specifies a valid domain (i.e. a window, frame, or device),
808 this function instantiates the specifier over that domain, applies FUNC
809 to the resulting instance, and adds the result back as an instantiator
810 for that locale. Otherwise, LOCALE should be a locale, locale type, or
811 'all (defaults to 'all if omitted). For each specification thusly
812 included: if the locale given is a valid domain, FUNC will be
813 iterated over all valid instantiators for the device of the domain
814 until a non-nil result is found (if there is no such result, the
815 first valid instantiator is used), and that result substituted for
816 the specification; otherwise, the process just outlined is
817 iterated over each existing device and the concatenated results
818 substituted for the specification.
820 DEVICE-TAGS is a list of tags that each device must match in order for
821 the function to be called on it."
822 (let ((sp (face-property face property))
824 (if (valid-specifier-domain-p locale)
826 (let* ((inst (face-property-instance face property locale))
828 (device-matches-specifier-tag-set-p
829 (dfw-device locale) device-tags)
830 (funcall func inst (dfw-device locale)))))
832 (add-spec-to-specifier sp name locale tags)))
833 ;; otherwise, map over all specifications ...
834 ;; but first, some further kludging:
835 ;; (1) if we're frobbing the global property, make sure
836 ;; that something is there (copy from the default face,
837 ;; if necessary). Otherwise, something like
838 ;; (make-face-larger 'modeline)
839 ;; won't do anything at all if the modeline simply
840 ;; inherits its font from 'default.
841 ;; (2) if we're frobbing a particular locale, nothing would
842 ;; happen if that locale has no instantiators. So signal
843 ;; an error to indicate this.
846 (setq temp-sp (copy-specifier sp))
847 (if (and (or (eq locale 'global) (eq locale 'all) (not locale))
848 (not (face-property face property 'global)))
849 (copy-specifier (face-property 'default property)
851 (if (and (valid-specifier-locale-p locale)
852 (not (specifier-specs temp-sp locale)))
853 (error "Property must have a specification in locale %S" locale))
856 (lambda (sp-arg locale inst-list func)
857 (let* ((device (dfw-device locale))
858 ;; if a device can be derived from the locale,
859 ;; call frob-face-property-1 for that device.
860 ;; Otherwise map frob-face-property-1 over each device.
863 (list (and (device-matches-specifier-tag-set-p
865 (frob-face-property-1 sp-arg device inst-list
867 (mapcar (lambda (device)
868 (and (device-matches-specifier-tag-set-p
870 (frob-face-property-1 sp-arg device
874 ;; remove duplicates and nils from the obtained list of
875 ;; instantiators. Also add tags amd remove 'defaults'.
876 (mapcar (lambda (arg)
878 (if (not (consp arg))
879 (setq arg (cons tags arg))
880 (setcar arg (append tags (delete 'default
882 (when (and arg (not (member arg new-result)))
883 (setq new-result (cons arg new-result))))
886 (add-spec-list-to-specifier sp (list (cons locale new-result)))
887 ;; tell map-specifier to keep going.
892 (defun frob-face-property-1 (sp device inst-list func)
895 (while (and inst-list (not result))
896 (let* ((inst-pair (car inst-list))
897 (tag-set (car inst-pair))
898 (sp-inst (specifier-instance-from-inst-list
899 sp device (list inst-pair))))
902 (if (not first-valid)
903 (setq first-valid inst-pair))
904 (setq result (funcall func sp-inst device))
906 (setq result (cons tag-set result))))))
907 (setq inst-list (cdr inst-list)))
908 (or result first-valid)))
910 (defcustom face-frob-from-locale-first nil
911 "*If non nil, use kludgy way of frobbing fonts suitable for non-mule
912 multi-charset environments."
916 (defun frob-face-font-2 (face locale tags unfrobbed-face frobbed-face
917 tty-thunk ws-thunk standard-face-mapping)
918 ;; another kludge to make things more intuitive. If we're
919 ;; inheriting from a standard face in this locale, frob the
920 ;; inheritance as appropriate. Else, if, after the first
921 ;; window-system frobbing pass, the face hasn't changed and still
922 ;; looks like the standard unfrobbed face (e.g. 'default), make it
923 ;; inherit from the standard frobbed face (e.g. 'bold). Regardless
924 ;; of things, do the TTY frobbing.
926 ;; yuck -- The LOCALE argument to make-face-bold is not actually a locale,
927 ;; but is a "locale, locale-type, or nil for all". So ... do our extra
928 ;; frobbing only if it's actually a locale; or for nil, do the frobbing
929 ;; on 'global. This specifier stuff needs some rethinking.
930 (let* ((the-locale (cond ((null locale) 'global)
931 ((valid-specifier-locale-p locale) locale)
936 (specifier-spec-list (get (get-face face) 'font) the-locale tags t)))
940 (cdr (assoc (cdadar spec-list) standard-face-mapping)))))
942 (not (memq (face-name (find-face face))
943 '(default bold italic bold-italic))))
945 (or (equal change-it t)
946 (set-face-property face 'font change-it the-locale tags))
948 (let* ((domain (cond ((null the-locale) nil)
949 ((valid-specifier-domain-p the-locale) the-locale)
950 ;; OK, this next one is truly a kludge, but
951 ;; it results in more intuitive behavior most
952 ;; of the time. (really!)
953 ((or (eq the-locale 'global) (eq the-locale 'all))
956 (inst (and domain (face-property-instance face 'font domain))))
957 ;; If it's reasonable to do the inherit-from-standard-face trick,
958 ;; and it's called for, then do it now.
960 face-frob-from-locale-first
961 (eq the-locale 'global)
963 (equal inst (face-property-instance face 'font domain))
964 ;; don't do it for standard faces, or you'll get inheritance loops.
965 ;; #### This makes XEmacs seg fault! fix this bug.
966 (not (memq (face-name (find-face face))
967 '(default bold italic bold-italic)))
968 (equal (face-property-instance face 'font domain)
969 (face-property-instance unfrobbed-face 'font domain)))
970 (set-face-property face 'font (vector frobbed-face)
972 ;; and only otherwise try to build new property value artificially
977 (equal inst (face-property-instance face 'font domain))
978 ;; don't do it for standard faces, or you'll get inheritance loops.
979 ;; #### This makes XEmacs seg fault! fix this bug.
980 (not (memq (face-name (find-face face))
981 '(default bold italic bold-italic)))
982 (equal (face-property-instance face 'font domain)
983 (face-property-instance unfrobbed-face 'font domain))
984 (set-face-property face 'font (vector frobbed-face) the-locale tags)))))))
986 (defun make-face-bold (face &optional locale tags)
987 "Make FACE bold in LOCALE, if possible.
988 This will attempt to make the font bold for X/MSW locales and will set the
989 highlight flag for TTY locales.
991 If LOCALE is nil, omitted, or `all', this will attempt to frob all
992 font specifications for FACE to make them appear bold. Similarly, if
993 LOCALE is a locale type, this frobs all font specifications for locales
994 of that type. If LOCALE is a particular locale, what happens depends on
995 what sort of locale is given. If you gave a device, frame, or window,
996 then it's always possible to determine what the font actually will be,
997 so this is determined and the resulting font is frobbed and added back as a
998 specification for this locale. If LOCALE is a buffer, however, you can't
999 determine what the font will actually be unless there's actually a
1000 specification given for that particular buffer (otherwise, it depends
1001 on what window and frame the buffer appears in, and might not even be
1002 well-defined if the buffer appears multiple times in different places);
1003 therefore you will get an error unless there's a specification for the
1006 Finally, in some cases (specifically, when LOCALE is not a locale type),
1007 if the frobbing didn't actually make the font look any different
1008 \(this happens, for example, if your font specification is already bold
1009 or has no bold equivalent), and currently looks like the font of the
1010 'default face, it is set to inherit from the 'bold face. This is kludgy
1011 but it makes `make-face-bold' have more intuitive behavior in many
1013 (interactive (list (read-face-name "Make which face bold: ")))
1015 face locale tags 'default 'bold
1017 ;; handle TTY specific entries
1018 (when (featurep 'tty)
1019 (set-face-highlight-p face t locale (cons 'tty tags))))
1021 ;; handle X/MS Windows specific entries
1023 (frob-face-property face 'font 'x-make-font-bold
1025 (when (featurep 'mswindows)
1026 (frob-face-property face 'font 'mswindows-make-font-bold
1027 '(mswindows) locale tags))
1029 '(([default] . [bold])
1031 ([italic] . [bold-italic])
1032 ([bold-italic] . t))))
1034 (defun make-face-italic (face &optional locale tags)
1035 "Make FACE italic in LOCALE, if possible.
1036 This will attempt to make the font italic for X/MS Windows locales and
1037 will set the underline flag for TTY locales. See `make-face-bold' for
1038 the semantics of the LOCALE argument and for more specifics on exactly
1039 how this function works."
1040 (interactive (list (read-face-name "Make which face italic: ")))
1042 face locale tags 'default 'italic
1044 ;; handle TTY specific entries
1045 (when (featurep 'tty)
1046 (set-face-underline-p face t locale (cons 'tty tags))))
1048 ;; handle X specific entries
1050 (frob-face-property face 'font 'x-make-font-italic
1052 (when (featurep 'mswindows)
1053 (frob-face-property face 'font 'mswindows-make-font-italic
1054 '(mswindows) locale tags))
1056 '(([default] . [italic])
1057 ([bold] . [bold-italic])
1059 ([bold-italic] . t))))
1061 (defun make-face-bold-italic (face &optional locale tags)
1062 "Make FACE bold and italic in LOCALE, if possible.
1063 This will attempt to make the font bold-italic for X/MS Windows
1064 locales and will set the highlight and underline flags for TTY
1065 locales. See `make-face-bold' for the semantics of the LOCALE
1066 argument and for more specifics on exactly how this function works."
1067 (interactive (list (read-face-name "Make which face bold-italic: ")))
1069 face locale tags 'default 'bold-italic
1071 ;; handle TTY specific entries
1072 (when (featurep 'tty)
1073 (set-face-highlight-p face t locale (cons 'tty tags))
1074 (set-face-underline-p face t locale (cons 'tty tags))))
1076 ;; handle X specific entries
1078 (frob-face-property face 'font 'x-make-font-bold-italic
1080 (when (featurep 'mswindows)
1081 (frob-face-property face 'font 'mswindows-make-font-bold-italic
1082 '(mswindows) locale tags))
1084 '(([default] . [italic])
1085 ([bold] . [bold-italic])
1086 ([italic] . [bold-italic])
1087 ([bold-italic] . t))))
1089 (defun make-face-unbold (face &optional locale tags)
1090 "Make FACE non-bold in LOCALE, if possible.
1091 This will attempt to make the font non-bold for X/MS Windows locales
1092 and will unset the highlight flag for TTY locales. See
1093 `make-face-bold' for the semantics of the LOCALE argument and for more
1094 specifics on exactly how this function works."
1095 (interactive (list (read-face-name "Make which face non-bold: ")))
1097 face locale tags 'bold 'default
1099 ;; handle TTY specific entries
1100 (when (featurep 'tty)
1101 (set-face-highlight-p face nil locale (cons 'tty tags))))
1103 ;; handle X specific entries
1105 (frob-face-property face 'font 'x-make-font-unbold
1107 (when (featurep 'mswindows)
1108 (frob-face-property face 'font 'mswindows-make-font-unbold
1109 '(mswindows) locale tags))
1112 ([bold] . [default])
1114 ([bold-italic] . [italic]))))
1116 (defun make-face-unitalic (face &optional locale tags)
1117 "Make FACE non-italic in LOCALE, if possible.
1118 This will attempt to make the font non-italic for X/MS Windows locales
1119 and will unset the underline flag for TTY locales. See
1120 `make-face-bold' for the semantics of the LOCALE argument and for more
1121 specifics on exactly how this function works."
1122 (interactive (list (read-face-name "Make which face non-italic: ")))
1124 face locale tags 'italic 'default
1126 ;; handle TTY specific entries
1127 (when (featurep 'tty)
1128 (set-face-underline-p face nil locale (cons 'tty tags))))
1130 ;; handle X specific entries
1132 (frob-face-property face 'font 'x-make-font-unitalic
1134 (when (featurep 'mswindows)
1135 (frob-face-property face 'font 'mswindows-make-font-unitalic
1136 '(mswindows) locale tags))
1140 ([italic] . [default])
1141 ([bold-italic] . [bold]))))
1144 ;; Why do the following two functions lose so badly in so many
1147 (defun make-face-smaller (face &optional locale)
1148 "Make the font of FACE be smaller, if possible.
1149 LOCALE works as in `make-face-bold' et al., but the ``inheriting-
1150 from-the-bold-face'' operations described there are not done
1151 because they don't make sense in this context."
1152 (interactive (list (read-face-name "Shrink which face: ")))
1153 ;; handle X specific entries
1155 (frob-face-property face 'font 'x-find-smaller-font
1157 (when (featurep 'mswindows)
1158 (frob-face-property face 'font 'mswindows-find-smaller-font
1159 '(mswindows) locale)))
1161 (defun make-face-larger (face &optional locale)
1162 "Make the font of FACE be larger, if possible.
1163 See `make-face-smaller' for the semantics of the LOCALE argument."
1164 (interactive (list (read-face-name "Enlarge which face: ")))
1165 ;; handle X specific entries
1167 (frob-face-property face 'font 'x-find-larger-font
1169 (when (featurep 'mswindows)
1170 (frob-face-property face 'font 'mswindows-find-larger-font
1171 '(mswindows) locale)))
1173 (defun invert-face (face &optional locale)
1174 "Swap the foreground and background colors of the face."
1175 (interactive (list (read-face-name "Invert face: ")))
1176 (if (valid-specifier-domain-p locale)
1177 (let ((foreface (face-foreground-instance face locale)))
1178 (set-face-foreground face (face-background-instance face locale)
1180 (set-face-background face foreface locale))
1181 (let ((forespec (copy-specifier (face-foreground face) nil locale)))
1182 (copy-specifier (face-background face) (face-foreground face) locale)
1183 (copy-specifier forespec (face-background face) locale))))
1186 ;;; Convenience functions
1188 (defun face-ascent (face &optional domain charset)
1189 "Return the ascent of FACE in DOMAIN.
1190 See `face-property-instance' for the semantics of the DOMAIN argument."
1191 (font-ascent (face-font face) domain charset))
1193 (defun face-descent (face &optional domain charset)
1194 "Return the descent of FACE in DOMAIN.
1195 See `face-property-instance' for the semantics of the DOMAIN argument."
1196 (font-descent (face-font face) domain charset))
1198 (defun face-width (face &optional domain charset)
1199 "Return the width of FACE in DOMAIN.
1200 See `face-property-instance' for the semantics of the DOMAIN argument."
1201 (font-width (face-font face) domain charset))
1203 (defun face-height (face &optional domain charset)
1204 "Return the height of FACE in DOMAIN.
1205 See `face-property-instance' for the semantics of the DOMAIN argument."
1206 (+ (face-ascent face domain charset) (face-descent face domain charset)))
1208 (defun face-proportional-p (face &optional domain charset)
1209 "Return t if FACE is proportional in DOMAIN.
1210 See `face-property-instance' for the semantics of the DOMAIN argument."
1211 (font-proportional-p (face-font face) domain charset))
1214 ;; Functions that used to be in cus-face.el, but logically go here.
1216 (defcustom frame-background-mode nil
1217 "*The brightness of the background.
1218 Set this to the symbol dark if your background color is dark, light if
1219 your background is light, or nil (default) if you want Emacs to
1220 examine the brightness for you."
1222 :type '(choice (choice-item dark)
1224 (choice-item :tag "Auto" nil)))
1226 ;; The old variable that many people still have in .emacs files.
1227 (define-obsolete-variable-alias 'custom-background-mode
1228 'frame-background-mode)
1230 (defun get-frame-background-mode (frame)
1231 "Detect background mode for FRAME."
1232 (let* ((color-instance (face-background-instance 'default frame))
1233 (mode (condition-case nil
1234 (if (< (apply '+ (color-instance-rgb-components
1235 color-instance)) 65536)
1237 ;; Here, we get an error on a TTY. As we don't have
1238 ;; a good way of detecting whether a TTY is light or
1239 ;; dark, we'll guess it's dark.
1241 (set-frame-property frame 'background-mode mode)
1244 (defun extract-custom-frame-properties (frame)
1245 "Return a plist with the frame properties of FRAME used by custom."
1246 (list 'type (or (frame-property frame 'display-type)
1247 (device-type (frame-device frame)))
1248 'class (device-class (frame-device frame))
1249 'background (or frame-background-mode
1250 (frame-property frame 'background-mode)
1251 (get-frame-background-mode frame))))
1253 (defcustom init-face-from-resources t
1254 "If non nil, attempt to initialize faces from the resource database."
1258 ;; Old name, used by custom. Also, FSFmacs name.
1259 (defvaralias 'initialize-face-resources 'init-face-from-resources)
1261 ;; Make sure all custom setting are added with this tag so we can
1263 (define-specifier-tag 'custom)
1265 (defun face-spec-set (face spec &optional frame tags)
1266 "Set FACE's face attributes according to the first matching entry in SPEC.
1267 If optional FRAME is non-nil, set it for that frame only.
1268 If it is nil, then apply SPEC to each frame individually.
1269 See `defface' for information about SPEC."
1272 (reset-face face frame tags)
1273 (face-display-set face spec frame tags)
1274 (init-face-from-resources face frame))
1275 (let ((frames (relevant-custom-frames)))
1276 (reset-face face nil tags)
1277 ;; This should not be needed. We only remove our own specifiers
1278 ;; (if (and (eq 'default face) (featurep 'x))
1279 ;; (x-init-global-faces))
1280 (face-display-set face spec nil tags)
1282 (face-display-set face spec (car frames) tags)
1284 (init-face-from-resources face))))
1286 (defun face-display-set (face spec &optional frame tags)
1287 "Set FACE to the attributes to the first matching entry in SPEC.
1288 Iff optional FRAME is non-nil, set it for that frame only.
1289 See `defface' for information about SPEC."
1291 (let ((display (caar spec))
1292 (atts (cadar spec)))
1294 (when (face-spec-set-match-display display frame)
1295 ;; Avoid creating frame local duplicates of the global face.
1296 (unless (and frame (eq display (get face 'custom-face-display)))
1297 (apply 'face-custom-attributes-set face frame tags atts))
1299 (put face 'custom-face-display display))
1302 (defvar default-custom-frame-properties nil
1303 "The frame properties used for the global faces.
1304 Frames not matching these properties should have frame local faces.
1305 The value should be nil, if uninitialized, or a plist otherwise.
1306 See `defface' for a list of valid keys and values for the plist.")
1308 (defun get-custom-frame-properties (&optional frame)
1309 "Return a plist with the frame properties of FRAME used by custom.
1310 If FRAME is nil, return the default frame properties."
1312 ;; Try to get from cache.
1313 (let ((cache (frame-property frame 'custom-properties)))
1315 ;; Oh well, get it then.
1316 (setq cache (extract-custom-frame-properties frame))
1318 (set-frame-property frame 'custom-properties cache))
1320 (default-custom-frame-properties)
1322 (setq default-custom-frame-properties
1323 (extract-custom-frame-properties (selected-frame))))))
1325 (defun face-spec-update-all-matching (spec display plist)
1326 "Update all entries in the face spec that could match display to
1327 have the entries from the new plist and return the new spec."
1330 (let ((entries (car e))
1336 (unless (eq display t)
1338 (setq dplist (plist-put dplist (car arg) (cadr arg))))
1340 (unless (eq entries t)
1342 (setq match (and match (eq (cadr arg)
1351 (plist-put options (car new-options) (cadr new-options)))
1352 (setq new-options (cddr new-options)))
1353 (list entries options))))
1354 (copy-sequence spec)))
1358 (defun face-spec-set-match-display (display &optional frame)
1359 "Return non-nil if DISPLAY matches FRAME.
1360 DISPLAY is part of a spec such as can be used in `defface'.
1361 If FRAME is nil or omitted, the selected frame is used."
1364 (let* ((props (get-custom-frame-properties frame))
1365 (type (plist-get props 'type))
1366 (class (plist-get props 'class))
1367 (background (plist-get props 'background))
1371 (while (and entries match)
1372 (setq entry (car entries)
1373 entries (cdr entries)
1377 (type (memq type options))
1378 (class (memq class options))
1379 (background (memq background options))
1380 (t (warn "Unknown req `%S' with options `%S'"
1385 (defun relevant-custom-frames ()
1386 "List of frames whose custom properties differ from the default."
1387 (let ((relevant nil)
1388 (default (get-custom-frame-properties))
1389 (frames (frame-list))
1392 (setq frame (car frames)
1393 frames (cdr frames))
1394 (unless (equal default (get-custom-frame-properties frame))
1395 (push frame relevant)))
1398 (defun initialize-custom-faces (&optional frame)
1399 "Initialize all custom faces for FRAME.
1400 If FRAME is nil or omitted, initialize them for all frames."
1401 (mapc (lambda (symbol)
1402 (let ((spec (or (get symbol 'saved-face)
1403 (get symbol 'face-defface-spec))))
1405 ;; No need to init-face-from-resources -- code in
1406 ;; `init-frame-faces' does it already.
1407 (face-display-set symbol spec frame))))
1410 (defun custom-initialize-frame (frame)
1411 "Initialize frame-local custom faces for FRAME if necessary."
1412 (unless (equal (get-custom-frame-properties)
1413 (get-custom-frame-properties frame))
1414 (initialize-custom-faces frame)))
1416 (defun startup-initialize-custom-faces ()
1417 "Reset faces created by defface. Only called at startup.
1418 Don't use this function in your program."
1419 (when default-custom-frame-properties
1420 ;; Reset default value to the actual frame, not stream.
1421 (setq default-custom-frame-properties
1422 (extract-custom-frame-properties (selected-frame)))
1423 ;; like initialize-custom-faces but removes property first.
1424 (mapc (lambda (symbol)
1425 (let ((spec (or (get symbol 'saved-face)
1426 (get symbol 'face-defface-spec))))
1428 ;; Reset faces created during auto-autoloads loading.
1430 ;; And set it according to the spec.
1431 (face-display-set symbol spec nil))))
1435 (defun make-empty-face (name &optional doc-string temporary)
1436 "Like `make-face', but doesn't query the resource database."
1437 (let ((init-face-from-resources nil))
1438 (make-face name doc-string temporary)))
1440 (defun init-face-from-resources (face &optional locale)
1441 "Initialize FACE from the resource database.
1442 If LOCALE is specified, it should be a frame, device, or 'global, and
1443 the face will be resourced over that locale. Otherwise, the face will
1444 be resourced over all possible locales (i.e. all frames, all devices,
1446 (cond ((null init-face-from-resources)
1450 ;; Global, set for all frames.
1452 (init-face-from-resources face 'global)
1453 (let ((devices (device-list)))
1455 (init-face-from-resources face (car devices))
1456 (setq devices (cdr devices))))
1457 (let ((frames (frame-list)))
1459 (init-face-from-resources face (car frames))
1460 (setq frames (cdr frames))))))
1463 (let ((devtype (cond ((devicep locale) (device-type locale))
1464 ((framep locale) (frame-type locale))
1466 (cond ((or (and (not devtype) (featurep 'x)) (eq 'x devtype))
1467 (x-init-face-from-resources face locale))
1468 ((or (not devtype) (eq 'tty devtype))
1469 ;; Nothing to do for TTYs?
1472 (defun init-device-faces (device)
1473 ;; First, add any device-local face resources.
1474 (when init-face-from-resources
1475 (loop for face in (face-list) do
1476 (init-face-from-resources face device))
1477 ;; Then do any device-specific initialization.
1478 (cond ((eq 'x (device-type device))
1479 (x-init-device-faces device))
1480 ((eq 'mswindows (device-type device))
1481 (mswindows-init-device-faces device))
1482 ;; Nothing to do for TTYs?
1484 (or (eq 'stream (device-type device))
1485 (init-other-random-faces device))))
1487 (defun init-frame-faces (frame)
1488 (when init-face-from-resources
1489 ;; First, add any frame-local face resources.
1490 (loop for face in (face-list) do
1491 (init-face-from-resources face frame))
1492 ;; Then do any frame-specific initialization.
1493 (cond ((eq 'x (frame-type frame))
1494 (x-init-frame-faces frame))
1495 ((eq 'mswindows (frame-type frame))
1496 (mswindows-init-frame-faces frame))
1497 ;; Is there anything which should be done for TTY's?
1500 ;; #### This is somewhat X-specific, and is called when the first
1501 ;; X device is created (even if there were TTY devices created
1502 ;; beforehand). The concept of resources has not been generalized
1503 ;; outside of X-specificness, so we have to live with this
1504 ;; breach of device-independence.
1506 (defun init-global-faces ()
1507 ;; Look for global face resources.
1508 (loop for face in (face-list) do
1509 (init-face-from-resources face 'global))
1510 ;; Further X frobbing.
1511 (x-init-global-faces)
1512 ;; for bold and the like, make the global specification be bold etc.
1513 ;; if the user didn't already specify a value. These will also be
1514 ;; frobbed further in init-other-random-faces.
1515 (unless (face-font 'bold 'global)
1516 (make-face-bold 'bold 'global))
1518 (unless (face-font 'italic 'global)
1519 (make-face-italic 'italic 'global))
1521 (unless (face-font 'bold-italic 'global)
1522 (make-face-bold-italic 'bold-italic 'global)
1523 (unless (face-font 'bold-italic 'global)
1524 (copy-face 'bold 'bold-italic)
1525 (make-face-italic 'bold-italic)))
1527 (when (face-equal 'bold 'bold-italic)
1528 (copy-face 'italic 'bold-italic)
1529 (make-face-bold 'bold-italic))
1531 ;; Nothing more to be done for X or TTY's?
1535 ;; These warnings are there for a reason. Just specify your fonts
1536 ;; correctly. Deal with it. Additionally, one can use
1537 ;; `log-warning-minimum-level' instead of this.
1538 ;(defvar inhibit-font-complaints nil
1539 ; "Whether to suppress complaints about incomplete sets of fonts.")
1541 (defun face-complain-about-font (face device)
1542 (if (symbolp face) (setq face (symbol-name face)))
1543 ;; (if (not inhibit-font-complaints)
1546 (let ((default-name (face-font-name 'default device)))
1547 (format "%s: couldn't deduce %s %s version of the font
1550 Please specify X resources to make the %s face
1551 visually distinguishable from the default face.
1552 For example, you could add one of the following to $HOME/Emacs:
1554 Emacs.%s.attributeFont: -dt-*-medium-i-*
1556 Emacs.%s.attributeForeground: hotpink\n"
1558 (if (string-match "\\`[aeiouAEIOU]" face) "an" "a")
1567 ;; #### This is quite a mess. We should use the custom mechanism for
1568 ;; most of this stuff. Currently we don't do it, because Custom
1569 ;; doesn't use specifiers (yet.) FSF does it the Right Way.
1571 ;; For instance, the definition of `bold' should be something like
1572 ;; (defface bold ((t (:bold t))) "Bold text.") -- and `:bold t' should
1573 ;; make sure that everything works properly.
1575 (defun init-other-random-faces (device)
1576 "Initialize the colors and fonts of the bold, italic, bold-italic,
1577 zmacs-region, list-mode-item-selected, highlight, primary-selection,
1578 secondary-selection, and isearch faces when each device is created. If
1579 you want to add code to do stuff like this, use the create-device-hook."
1581 ;; try to make 'bold look different from the default on this device.
1582 ;; If that doesn't work at all, then issue a warning.
1583 (unless (face-differs-from-default-p 'bold device)
1584 (make-face-bold 'bold device)
1585 (unless (face-differs-from-default-p 'bold device)
1586 (make-face-unbold 'bold device)
1587 (unless (face-differs-from-default-p 'bold device)
1588 ;; the luser specified one of the bogus font names
1589 (face-complain-about-font 'bold device))))
1591 ;; Similar for italic.
1592 ;; It's unreasonable to expect to be able to make a font italic all
1593 ;; the time. For many languages, italic is an alien concept.
1594 ;; Basically, because italic is not a globally meaningful concept,
1595 ;; the use of the italic face should really be obsoleted.
1597 ;; I disagree with above. In many languages, the concept of capital
1598 ;; letters is just as alien, and yet we use them. Italic is here to
1601 ;; In a Solaris Japanese environment, there just aren't any italic
1602 ;; fonts - period. CDE recognizes this reality, and fonts
1603 ;; -dt-interface user-medium-r-normal-*-*-*-*-*-*-*-*-* don't come
1604 ;; in italic versions. So we first try to make the font bold before
1606 (unless (face-differs-from-default-p 'italic device)
1607 (make-face-italic 'italic device)
1608 (unless (face-differs-from-default-p 'italic device)
1609 (make-face-bold 'italic device)
1610 (unless (face-differs-from-default-p 'italic device)
1611 (face-complain-about-font 'italic device))))
1613 ;; similar for bold-italic.
1614 (unless (face-differs-from-default-p 'bold-italic device)
1615 (make-face-bold-italic 'bold-italic device)
1616 ;; if we couldn't get a bold-italic version, try just bold.
1617 (unless (face-differs-from-default-p 'bold-italic device)
1618 (make-face-bold 'bold-italic device)
1619 ;; if we couldn't get bold or bold-italic, then that's probably because
1620 ;; the default font is bold, so make the `bold-italic' face be unbold.
1621 (unless (face-differs-from-default-p 'bold-italic device)
1622 (make-face-unbold 'bold-italic device)
1623 (make-face-italic 'bold-italic device)
1624 (unless (face-differs-from-default-p 'bold-italic device)
1625 ;; if that didn't work, try plain italic
1626 ;; (can this ever happen? what the hell.)
1627 (make-face-italic 'bold-italic device)
1628 (unless (face-differs-from-default-p 'bold-italic device)
1629 ;; then bitch and moan.
1630 (face-complain-about-font 'bold-italic device))))))
1632 ;; Set the text-cursor colors unless already specified.
1633 (when (and (not (eq 'tty (device-type device)))
1634 (not (face-background 'text-cursor 'global))
1635 (face-property-equal 'text-cursor 'default 'background device))
1636 (set-face-background 'text-cursor [default foreground] 'global
1638 (when (and (not (eq 'tty (device-type device)))
1639 (not (face-foreground 'text-cursor 'global))
1640 (face-property-equal 'text-cursor 'default 'foreground device))
1641 (set-face-foreground 'text-cursor [default background] 'global
1645 ;; New function with 20.1, suggested by Per Abrahamsen, coded by Kyle
1646 ;; Jones and Hrvoje Niksic.
1647 (defun set-face-stipple (face pixmap &optional frame)
1648 "Change the stipple pixmap of FACE to PIXMAP.
1649 This is an Emacs compatibility function; consider using
1650 set-face-background-pixmap instead.
1652 PIXMAP should be a string, the name of a file of pixmap data.
1653 The directories listed in the variables `x-bitmap-file-path' and
1654 `mswindows-bitmap-file-path' under X and MS Windows respectively
1657 Alternatively, PIXMAP may be a list of the form (WIDTH HEIGHT
1658 DATA) where WIDTH and HEIGHT are the size in pixels, and DATA is
1659 a string, containing the raw bits of the bitmap. XBM data is
1660 expected in this case, other types of image data will not work.
1662 If the optional FRAME argument is provided, change only
1663 in that frame; otherwise change each frame."
1664 (while (not (find-face face))
1665 (setq face (wrong-type-argument 'facep face)))
1666 (let ((bitmap-path (ecase (console-type)
1667 (x x-bitmap-file-path)
1668 (mswindows mswindows-bitmap-file-path)))
1673 (cond ((stringp pixmap)
1674 (let ((file (if (file-name-absolute-p pixmap)
1676 (locate-file pixmap bitmap-path
1679 `[xbm :file ,file])))
1680 ((and (listp pixmap) (= (length pixmap) 3))
1681 `[xbm :data ,pixmap])
1683 ;; We're signaling a continuable error; let's make sure the
1684 ;; function `stipple-pixmap-p' at least exists.
1685 (flet ((stipple-pixmap-p (pixmap)
1686 (or (stringp pixmap)
1687 (and (listp pixmap) (= (length pixmap) 3)))))
1688 (setq pixmap (signal 'wrong-type-argument
1689 (list 'stipple-pixmap-p pixmap)))))
1690 (check-type frame (or null frame))
1691 (set-face-background-pixmap face instantiator frame)))
1694 ;; Create the remaining standard faces now. This way, packages that we dump
1695 ;; can reference these faces as parents.
1697 ;; The default, modeline, left-margin, right-margin, text-cursor,
1698 ;; and pointer faces are created in C.
1700 (make-face 'bold "Bold text.")
1701 (make-face 'italic "Italic text.")
1702 (make-face 'bold-italic "Bold-italic text.")
1703 (make-face 'underline "Underlined text.")
1704 (or (face-differs-from-default-p 'underline)
1705 (set-face-underline-p 'underline t 'global '(default)))
1706 (make-face 'zmacs-region "Used on highlightes region between point and mark.")
1707 (make-face 'isearch "Used on region matched by isearch.")
1708 (make-face 'isearch-secondary "Face to use for highlighting all matches.")
1709 (make-face 'list-mode-item-selected
1710 "Face for the selected list item in list-mode.")
1711 (make-face 'highlight "Highlight face.")
1712 (make-face 'primary-selection "Primary selection face.")
1713 (make-face 'secondary-selection "Secondary selection face.")
1715 ;; Several useful color faces.
1716 (eval-when-compile (load "cl-macs"))
1717 (dolist (color '(red green blue yellow))
1718 (make-face color (concat (symbol-name color) " text."))
1719 (set-face-foreground color (symbol-name color) nil 'color))
1721 ;; Make some useful faces. This happens very early, before creating
1722 ;; the first non-stream device.
1724 (set-face-background 'text-cursor
1725 '(((x default) . "Red3")
1726 ((mswindows default) . "Red3"))
1729 ;; some older X servers don't recognize "darkseagreen2"
1730 (set-face-background 'highlight
1731 '(((x default color) . "darkseagreen2")
1732 ((x default color) . "green")
1733 ((x default grayscale) . "gray53")
1734 ((mswindows default color) . "darkseagreen2")
1735 ((mswindows default color) . "green")
1736 ((mswindows default grayscale) . "gray53"))
1738 (set-face-background-pixmap 'highlight
1739 '(((x default mono) . "gray1")
1740 ((mswindows default mono) . "gray1"))
1743 (set-face-background 'zmacs-region
1744 '(((x default color) . "gray65")
1745 ((x default grayscale) . "gray65")
1746 ((mswindows default color) . "gray65")
1747 ((mswindows default grayscale) . "gray65"))
1749 (set-face-background-pixmap 'zmacs-region
1750 '(((x default mono) . "gray3")
1751 ((mswindows default mono) . "gray3"))
1754 (set-face-background 'list-mode-item-selected
1755 '(((x default color) . "gray68")
1756 ((x default grayscale) . "gray68")
1757 ((x default mono) . [default foreground])
1758 ((mswindows default color) . "gray68")
1759 ((mswindows default grayscale) . "gray68")
1760 ((mswindows default mono) . [default foreground]))
1762 (set-face-foreground 'list-mode-item-selected
1763 '(((x default mono) . [default background])
1764 ((mswindows default mono) . [default background]))
1767 (set-face-background 'primary-selection
1768 '(((x default color) . "gray65")
1769 ((x default grayscale) . "gray65")
1770 ((mswindows default color) . "gray65")
1771 ((mswindows default grayscale) . "gray65"))
1773 (set-face-background-pixmap 'primary-selection
1774 '(((x default mono) . "gray3")
1775 ((mswindows default mono) . "gray3"))
1778 (set-face-background 'secondary-selection
1779 '(((x default color) . "paleturquoise")
1780 ((x default color) . "green")
1781 ((x default grayscale) . "gray53")
1782 ((mswindows default color) . "paleturquoise")
1783 ((mswindows default color) . "green")
1784 ((mswindows default grayscale) . "gray53"))
1786 (set-face-background-pixmap 'secondary-selection
1787 '(((x default mono) . "gray1")
1788 ((mswindows default mono) . "gray1"))
1791 (set-face-background 'isearch
1792 '(((x default color) . "paleturquoise")
1793 ((x default color) . "green")
1794 ((mswindows default color) . "paleturquoise")
1795 ((mswindows default color) . "green"))
1798 ;; #### This should really, I mean *really*, be converted to some form
1799 ;; of `defface' one day.
1800 (set-face-foreground 'isearch-secondary
1801 '(((x default color) . "red3")
1802 ((mswindows default color) . "red3"))
1805 ;; Define some logical color names to be used when reading the pixmap files.
1807 (setq xpm-color-symbols
1809 '("foreground" (face-foreground 'default))
1810 '("background" (face-background 'default))
1811 '("backgroundToolBarColor"
1815 (x-get-resource "backgroundToolBarColor"
1816 "BackgroundToolBarColor" 'string
1819 (face-background 'toolbar)))
1820 '("foregroundToolBarColor"
1824 (x-get-resource "foregroundToolBarColor"
1825 "ForegroundToolBarColor" 'string
1827 (face-foreground 'toolbar)))
1830 (when (featurep 'tty)
1831 (set-face-highlight-p 'bold t 'global '(default tty))
1832 (set-face-underline-p 'italic t 'global '(default tty))
1833 (set-face-highlight-p 'bold-italic t 'global '(default tty))
1834 (set-face-underline-p 'bold-italic t 'global '(default tty))
1835 (set-face-highlight-p 'highlight t 'global '(default tty))
1836 (set-face-reverse-p 'text-cursor t 'global '(default tty))
1837 (set-face-reverse-p 'modeline t 'global '(default tty))
1838 (set-face-reverse-p 'zmacs-region t 'global '(default tty))
1839 (set-face-reverse-p 'primary-selection t 'global '(default tty))
1840 (set-face-underline-p 'secondary-selection t 'global '(default tty))
1841 (set-face-reverse-p 'list-mode-item-selected t 'global '(default tty))
1842 (set-face-reverse-p 'isearch t 'global '(default tty))
1845 ;;; faces.el ends here