1 ;;; faces.el --- Lisp faces
3 ;; Copyright (C) 1992-1996, 1998-2011 Free Software Foundation, Inc.
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
31 (declare-function xw-defined-colors
"term/common-win" (&optional frame
))
33 (defvar help-xref-stack-item
)
35 (defvar face-name-history nil
36 "History list for some commands that read face names.
37 Maximum length of the history list is determined by the value
38 of `history-length', which see.")
41 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
43 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
45 (defgroup font-selection nil
46 "Influencing face font selection."
50 (defcustom face-font-selection-order
51 '(:width
:height
:weight
:slant
)
52 "A list specifying how face font selection chooses fonts.
53 Each of the four symbols `:width', `:height', `:weight', and `:slant'
54 must appear once in the list, and the list must not contain any other
55 elements. Font selection first tries to find a best matching font
56 for those face attributes that appear before in the list. For
57 example, if `:slant' appears before `:height', font selection first
58 tries to find a font with a suitable slant, even if this results in
59 a font height that isn't optimal."
60 :tag
"Font selection order"
61 :type
'(list symbol symbol symbol symbol
)
62 :group
'font-selection
63 :set
#'(lambda (symbol value
)
64 (set-default symbol value
)
65 (internal-set-font-selection-order value
)))
68 ;; In the absence of Fontconfig support, Monospace and Sans Serif are
69 ;; unavailable, and we fall back on the courier and helv families,
70 ;; which are generally available.
71 (defcustom face-font-family-alternatives
72 (mapcar (lambda (arg) (mapcar 'purecopy arg
))
73 '(("Monospace" "courier" "fixed")
74 ("courier" "CMU Typewriter Text" "fixed")
75 ("Sans Serif" "helv" "helvetica" "arial" "fixed")
76 ("helv" "helvetica" "arial" "fixed")))
77 "Alist of alternative font family names.
78 Each element has the form (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...).
79 If fonts of family FAMILY can't be loaded, try ALTERNATIVE1, then
81 :tag
"Alternative font families to try"
82 :type
'(repeat (repeat string
))
83 :group
'font-selection
84 :set
#'(lambda (symbol value
)
85 (set-default symbol value
)
86 (internal-set-alternative-font-family-alist value
)))
89 ;; This is defined originally in xfaces.c.
90 (defcustom face-font-registry-alternatives
91 (mapcar (lambda (arg) (mapcar 'purecopy arg
))
92 (if (eq system-type
'windows-nt
)
93 '(("iso8859-1" "ms-oemlatin")
94 ("gb2312.1980" "gb2312" "gbk" "gb18030")
95 ("jisx0208.1990" "jisx0208.1983" "jisx0208.1978")
96 ("ksc5601.1989" "ksx1001.1992" "ksc5601.1987")
97 ("muletibetan-2" "muletibetan-0"))
98 '(("gb2312.1980" "gb2312.80&gb8565.88" "gbk" "gb18030")
99 ("jisx0208.1990" "jisx0208.1983" "jisx0208.1978")
100 ("ksc5601.1989" "ksx1001.1992" "ksc5601.1987")
101 ("muletibetan-2" "muletibetan-0"))))
102 "Alist of alternative font registry names.
103 Each element has the form (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...).
104 If fonts of registry REGISTRY can be loaded, font selection
105 tries to find a best matching font among all fonts of registry
106 REGISTRY, ALTERNATIVE1, ALTERNATIVE2, and etc."
107 :tag
"Alternative font registries to try"
108 :type
'(repeat (repeat string
))
110 :group
'font-selection
111 :set
#'(lambda (symbol value
)
112 (set-default symbol value
)
113 (internal-set-alternative-font-registry-alist value
)))
116 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
117 ;;; Creation, copying.
118 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
122 "Return a list of all defined faces."
123 (mapcar #'car face-new-frame-defaults
))
126 ;;; ### If not frame-local initialize by what X resources?
128 (defun make-face (face &optional no-init-from-resources
)
129 "Define a new face with name FACE, a symbol.
130 NO-INIT-FROM-RESOURCES non-nil means don't initialize frame-local
131 variants of FACE from X resources. (X resources recognized are found
132 in the global variable `face-x-resources'.) If FACE is already known
133 as a face, leave it unmodified. Value is FACE."
134 (interactive (list (read-from-minibuffer
135 "Make face: " nil nil t
'face-name-history
)))
137 ;; Make frame-local faces (this also makes the global one).
138 (dolist (frame (frame-list))
139 (internal-make-lisp-face face frame
))
140 ;; Add the face to the face menu.
141 (when (fboundp 'facemenu-add-new-face
)
142 (facemenu-add-new-face face
))
143 ;; Define frame-local faces for all frames from X resources.
144 (unless no-init-from-resources
145 (make-face-x-resource-internal face
)))
149 (defun make-empty-face (face)
150 "Define a new, empty face with name FACE.
151 If the face already exists, it is left unmodified. Value is FACE."
152 (interactive (list (read-from-minibuffer
153 "Make empty face: " nil nil t
'face-name-history
)))
154 (make-face face
'no-init-from-resources
))
157 (defun copy-face (old-face new-face
&optional frame new-frame
)
158 "Define a face just like OLD-FACE, with name NEW-FACE.
160 If NEW-FACE already exists as a face, it is modified to be like
161 OLD-FACE. If it doesn't already exist, it is created.
163 If the optional argument FRAME is given as a frame, NEW-FACE is
164 changed on FRAME only.
165 If FRAME is t, the frame-independent default specification for OLD-FACE
166 is copied to NEW-FACE.
167 If FRAME is nil, copying is done for the frame-independent defaults
168 and for each existing frame.
170 If the optional fourth argument NEW-FRAME is given,
171 copy the information from face OLD-FACE on frame FRAME
172 to NEW-FACE on frame NEW-FRAME. In this case, FRAME may not be nil."
173 (let ((inhibit-quit t
))
177 (error "Copying face %s from all frames to one frame"
179 (make-empty-face new-face
)
180 (dolist (frame (frame-list))
181 (copy-face old-face new-face frame
))
182 (copy-face old-face new-face t
))
183 (make-empty-face new-face
)
184 (internal-copy-lisp-face old-face new-face frame new-frame
))
188 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
189 ;;; Predicates, type checks.
190 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
193 "Return non-nil if FACE is a face name; nil otherwise.
194 A face name can be a string or a symbol."
195 (internal-lisp-face-p face
))
198 (defun check-face (face)
199 "Signal an error if FACE doesn't name a face.
202 (error "Not a face: %s" face
))
206 ;; The ID returned is not to be confused with the internally used IDs
207 ;; of realized faces. The ID assigned to Lisp faces is used to
208 ;; support faces in display table entries.
210 (defun face-id (face &optional _frame
)
211 "Return the internal ID of face with name FACE.
212 If FACE is a face-alias, return the ID of the target face.
213 The optional argument FRAME is ignored, since the internal face ID
214 of a face name is the same for all frames."
217 (face-id (get face
'face-alias
))))
219 (defun face-equal (face1 face2
&optional frame
)
220 "Non-nil if faces FACE1 and FACE2 are equal.
221 Faces are considered equal if all their attributes are equal.
222 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
223 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
224 If FRAME is omitted or nil, use the selected frame."
225 (internal-lisp-face-equal-p face1 face2 frame
))
228 (defun face-differs-from-default-p (face &optional frame
)
229 "Return non-nil if FACE displays differently from the default face.
230 If the optional argument FRAME is given, report on face FACE in that frame.
231 If FRAME is t, report on the defaults for face FACE (for new frames).
232 If FRAME is omitted or nil, use the selected frame."
234 (delq :inherit
(mapcar 'car face-attribute-name-alist
)))
236 (while (and attrs
(not differs
))
237 (let* ((attr (pop attrs
))
238 (attr-val (face-attribute face attr frame t
)))
240 (not (eq attr-val
'unspecified
))
241 (display-supports-face-attributes-p (list attr attr-val
)
243 (setq differs attr
))))
247 (defun face-nontrivial-p (face &optional frame
)
248 "True if face FACE has some non-nil attribute.
249 If the optional argument FRAME is given, report on face FACE in that frame.
250 If FRAME is t, report on the defaults for face FACE (for new frames).
251 If FRAME is omitted or nil, use the selected frame."
252 (not (internal-lisp-face-empty-p face frame
)))
256 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
257 ;;; Setting face attributes from X resources.
258 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
260 (defcustom face-x-resources
263 ;; FIXME; can we purecopy some of the conses too?
265 (cons (purecopy (car (cdr arg
))) (purecopy (cdr (cdr arg
))))))
266 '((:family
(".attributeFamily" .
"Face.AttributeFamily"))
267 (:foundry
(".attributeFoundry" .
"Face.AttributeFoundry"))
268 (:width
(".attributeWidth" .
"Face.AttributeWidth"))
269 (:height
(".attributeHeight" .
"Face.AttributeHeight"))
270 (:weight
(".attributeWeight" .
"Face.AttributeWeight"))
271 (:slant
(".attributeSlant" .
"Face.AttributeSlant"))
272 (:foreground
(".attributeForeground" .
"Face.AttributeForeground"))
273 (:background
(".attributeBackground" .
"Face.AttributeBackground"))
274 (:overline
(".attributeOverline" .
"Face.AttributeOverline"))
275 (:strike-through
(".attributeStrikeThrough" .
"Face.AttributeStrikeThrough"))
276 (:box
(".attributeBox" .
"Face.AttributeBox"))
277 (:underline
(".attributeUnderline" .
"Face.AttributeUnderline"))
278 (:inverse-video
(".attributeInverse" .
"Face.AttributeInverse"))
280 (".attributeStipple" .
"Face.AttributeStipple")
281 (".attributeBackgroundPixmap" .
"Face.AttributeBackgroundPixmap"))
282 (:bold
(".attributeBold" .
"Face.AttributeBold"))
283 (:italic
(".attributeItalic" .
"Face.AttributeItalic"))
284 (:font
(".attributeFont" .
"Face.AttributeFont"))
285 (:inherit
(".attributeInherit" .
"Face.AttributeInherit"))))
286 "List of X resources and classes for face attributes.
287 Each element has the form (ATTRIBUTE ENTRY1 ENTRY2...) where ATTRIBUTE is
288 the name of a face attribute, and each ENTRY is a cons of the form
289 \(RESOURCE . CLASS) with RESOURCE being the resource and CLASS being the
290 X resource class for the attribute."
291 :type
'(repeat (cons symbol
(repeat (cons string string
))))
295 (declare-function internal-face-x-get-resource
"xfaces.c"
296 (resource class frame
))
298 (declare-function internal-set-lisp-face-attribute-from-resource
"xfaces.c"
299 (face attr value
&optional frame
))
301 (defun set-face-attribute-from-resource (face attribute resource class frame
)
302 "Set FACE's ATTRIBUTE from X resource RESOURCE, class CLASS on FRAME.
303 Value is the attribute value specified by the resource, or nil
304 if not present. This function displays a message if the resource
305 specifies an invalid attribute."
306 (let* ((face-name (face-name face
))
307 (value (internal-face-x-get-resource (concat face-name resource
)
311 (internal-set-lisp-face-attribute-from-resource
312 face attribute
(downcase value
) frame
)
314 (message "Face %s, frame %s: invalid attribute %s %s from X resource"
315 face-name frame attribute value
))))
319 (defun set-face-attributes-from-resources (face frame
)
320 "Set attributes of FACE from X resources for FRAME."
321 (when (memq (framep frame
) '(x w32
))
322 (dolist (definition face-x-resources
)
323 (let ((attribute (car definition
)))
324 (dolist (entry (cdr definition
))
325 (set-face-attribute-from-resource face attribute
(car entry
)
326 (cdr entry
) frame
))))))
329 (defun make-face-x-resource-internal (face &optional frame
)
330 "Fill frame-local FACE on FRAME from X resources.
331 FRAME nil or not specified means do it for all frames."
333 (dolist (frame (frame-list))
334 (set-face-attributes-from-resources face frame
))
335 (set-face-attributes-from-resources face frame
)))
339 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
340 ;;; Retrieving face attributes.
341 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
343 (defun face-name (face)
344 "Return the name of face FACE."
345 (symbol-name (check-face face
)))
348 (defun face-all-attributes (face &optional frame
)
349 "Return an alist stating the attributes of FACE.
350 Each element of the result has the form (ATTR-NAME . ATTR-VALUE).
351 If FRAME is omitted or nil the value describes the default attributes,
352 but if you specify FRAME, the value describes the attributes
354 (mapcar (lambda (pair)
355 (let ((attr (car pair
)))
356 (cons attr
(face-attribute face attr
(or frame t
)))))
357 face-attribute-name-alist
))
359 (defun face-attribute (face attribute
&optional frame inherit
)
360 "Return the value of FACE's ATTRIBUTE on FRAME.
361 If the optional argument FRAME is given, report on face FACE in that frame.
362 If FRAME is t, report on the defaults for face FACE (for new frames).
363 If FRAME is omitted or nil, use the selected frame.
365 If INHERIT is nil, only attributes directly defined by FACE are considered,
366 so the return value may be `unspecified', or a relative value.
367 If INHERIT is non-nil, FACE's definition of ATTRIBUTE is merged with the
368 faces specified by its `:inherit' attribute; however the return value
369 may still be `unspecified' or relative.
370 If INHERIT is a face or a list of faces, then the result is further merged
371 with that face (or faces), until it becomes specified and absolute.
373 To ensure that the return value is always specified and absolute, use a
374 value of `default' for INHERIT; this will resolve any unspecified or
375 relative values by merging with the `default' face (which is always
376 completely specified)."
377 (let ((value (internal-get-lisp-face-attribute face attribute frame
)))
378 (when (and inherit
(face-attribute-relative-p attribute value
))
379 ;; VALUE is relative, so merge with inherited faces
380 (let ((inh-from (face-attribute face
:inherit frame
)))
381 (unless (or (null inh-from
) (eq inh-from
'unspecified
))
384 (face-attribute-merged-with attribute value inh-from frame
))
385 ;; The `inherit' attribute may point to non existent faces.
389 (face-attribute-relative-p attribute value
))
390 ;; We should merge with INHERIT as well
391 (setq value
(face-attribute-merged-with attribute value inherit frame
)))
394 (defun face-attribute-merged-with (attribute value faces
&optional frame
)
395 "Merges ATTRIBUTE, initially VALUE, with faces from FACES until absolute.
396 FACES may be either a single face or a list of faces.
397 \[This is an internal function.]"
398 (cond ((not (face-attribute-relative-p attribute value
))
403 (face-attribute-merged-with
405 (face-attribute-merged-with attribute value
(car faces
) frame
)
409 (merge-face-attribute attribute
411 (face-attribute faces attribute frame t
)))))
414 (defmacro face-attribute-specified-or
(value &rest body
)
415 "Return VALUE, unless it's `unspecified', in which case evaluate BODY and return the result."
416 (let ((temp (make-symbol "value")))
417 `(let ((,temp
,value
))
418 (if (not (eq ,temp
'unspecified
))
422 (defun face-foreground (face &optional frame inherit
)
423 "Return the foreground color name of FACE, or nil if unspecified.
424 If the optional argument FRAME is given, report on face FACE in that frame.
425 If FRAME is t, report on the defaults for face FACE (for new frames).
426 If FRAME is omitted or nil, use the selected frame.
428 If INHERIT is nil, only a foreground color directly defined by FACE is
429 considered, so the return value may be nil.
430 If INHERIT is t, and FACE doesn't define a foreground color, then any
431 foreground color that FACE inherits through its `:inherit' attribute
432 is considered as well; however the return value may still be nil.
433 If INHERIT is a face or a list of faces, then it is used to try to
434 resolve an unspecified foreground color.
436 To ensure that a valid color is always returned, use a value of
437 `default' for INHERIT; this will resolve any unspecified values by
438 merging with the `default' face (which is always completely specified)."
439 (face-attribute-specified-or (face-attribute face
:foreground frame inherit
)
442 (defun face-background (face &optional frame inherit
)
443 "Return the background color name of FACE, or nil if unspecified.
444 If the optional argument FRAME is given, report on face FACE in that frame.
445 If FRAME is t, report on the defaults for face FACE (for new frames).
446 If FRAME is omitted or nil, use the selected frame.
448 If INHERIT is nil, only a background color directly defined by FACE is
449 considered, so the return value may be nil.
450 If INHERIT is t, and FACE doesn't define a background color, then any
451 background color that FACE inherits through its `:inherit' attribute
452 is considered as well; however the return value may still be nil.
453 If INHERIT is a face or a list of faces, then it is used to try to
454 resolve an unspecified background color.
456 To ensure that a valid color is always returned, use a value of
457 `default' for INHERIT; this will resolve any unspecified values by
458 merging with the `default' face (which is always completely specified)."
459 (face-attribute-specified-or (face-attribute face
:background frame inherit
)
462 (defun face-stipple (face &optional frame inherit
)
463 "Return the stipple pixmap name of FACE, or nil if unspecified.
464 If the optional argument FRAME is given, report on face FACE in that frame.
465 If FRAME is t, report on the defaults for face FACE (for new frames).
466 If FRAME is omitted or nil, use the selected frame.
468 If INHERIT is nil, only a stipple directly defined by FACE is
469 considered, so the return value may be nil.
470 If INHERIT is t, and FACE doesn't define a stipple, then any stipple
471 that FACE inherits through its `:inherit' attribute is considered as
472 well; however the return value may still be nil.
473 If INHERIT is a face or a list of faces, then it is used to try to
474 resolve an unspecified stipple.
476 To ensure that a valid stipple or nil is always returned, use a value of
477 `default' for INHERIT; this will resolve any unspecified values by merging
478 with the `default' face (which is always completely specified)."
479 (face-attribute-specified-or (face-attribute face
:stipple frame inherit
)
483 (defalias 'face-background-pixmap
'face-stipple
)
486 (defun face-underline-p (face &optional frame
)
487 "Return non-nil if FACE is underlined.
488 If the optional argument FRAME is given, report on face FACE in that frame.
489 If FRAME is t, report on the defaults for face FACE (for new frames).
490 If FRAME is omitted or nil, use the selected frame."
491 (eq (face-attribute face
:underline frame
) t
))
494 (defun face-inverse-video-p (face &optional frame
)
495 "Return non-nil if FACE is in inverse video on FRAME.
496 If the optional argument FRAME is given, report on face FACE in that frame.
497 If FRAME is t, report on the defaults for face FACE (for new frames).
498 If FRAME is omitted or nil, use the selected frame."
499 (eq (face-attribute face
:inverse-video frame
) t
))
502 (defun face-bold-p (face &optional frame
)
503 "Return non-nil if the font of FACE is bold on FRAME.
504 If the optional argument FRAME is given, report on face FACE in that frame.
505 If FRAME is t, report on the defaults for face FACE (for new frames).
506 If FRAME is omitted or nil, use the selected frame.
507 Use `face-attribute' for finer control."
508 (let ((bold (face-attribute face
:weight frame
)))
509 (memq bold
'(semi-bold bold extra-bold ultra-bold
))))
512 (defun face-italic-p (face &optional frame
)
513 "Return non-nil if the font of FACE is italic on FRAME.
514 If the optional argument FRAME is given, report on face FACE in that frame.
515 If FRAME is t, report on the defaults for face FACE (for new frames).
516 If FRAME is omitted or nil, use the selected frame.
517 Use `face-attribute' for finer control."
518 (let ((italic (face-attribute face
:slant frame
)))
519 (memq italic
'(italic oblique
))))
523 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
524 ;;; Face documentation.
525 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
527 (defun face-documentation (face)
528 "Get the documentation string for FACE.
529 If FACE is a face-alias, get the documentation for the target face."
530 (let ((alias (get face
'face-alias
))
534 (setq doc
(get alias
'face-documentation
))
535 (format "%s is an alias for the face `%s'.%s" face alias
536 (if doc
(format "\n%s" doc
)
538 (get face
'face-documentation
))))
541 (defun set-face-documentation (face string
)
542 "Set the documentation string for FACE to STRING."
543 ;; Perhaps the text should go in DOC.
544 (put face
'face-documentation
(purecopy string
)))
547 (defalias 'face-doc-string
'face-documentation
)
548 (defalias 'set-face-doc-string
'set-face-documentation
)
552 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
553 ;; Setting face attributes.
554 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
557 (defun set-face-attribute (face frame
&rest args
)
558 "Set attributes of FACE on FRAME from ARGS.
560 FRAME nil means change attributes on all frames. FRAME t means change
561 the default for new frames (this is done automatically each time an
562 attribute is changed on all frames).
564 ARGS must come in pairs ATTRIBUTE VALUE. ATTRIBUTE must be a valid
565 face attribute name. All attributes can be set to `unspecified';
566 this fact is not further mentioned below.
568 The following attributes are recognized:
572 VALUE must be a string specifying the font family, e.g. ``monospace'',
573 or a fontset alias name. If a font family is specified, wild-cards `*'
578 VALUE must be a string specifying the font foundry,
579 e.g. ``adobe''. If a font foundry is specified, wild-cards `*'
584 VALUE specifies the relative proportionate width of the font to use.
585 It must be one of the symbols `ultra-condensed', `extra-condensed',
586 `condensed', `semi-condensed', `normal', `semi-expanded', `expanded',
587 `extra-expanded', or `ultra-expanded'.
591 VALUE specifies the height of the font, in either absolute or relative
592 terms. An absolute height is an integer, and specifies font height in
593 units of 1/10 pt. A relative height is either a floating point number,
594 which specifies a scaling factor for the underlying face height;
595 or a function that takes a single argument (the underlying face height)
596 and returns the new height. Note that for the `default' face,
597 you can only specify an absolute height (since there is nothing
598 for it to be relative to).
602 VALUE specifies the weight of the font to use. It must be one of the
603 symbols `ultra-bold', `extra-bold', `bold', `semi-bold', `normal',
604 `semi-light', `light', `extra-light', `ultra-light'.
608 VALUE specifies the slant of the font to use. It must be one of the
609 symbols `italic', `oblique', `normal', `reverse-italic', or
612 `:foreground', `:background'
614 VALUE must be a color name, a string.
618 VALUE specifies whether characters in FACE should be underlined. If
619 VALUE is t, underline with foreground color of the face. If VALUE is
620 a string, underline with that color. If VALUE is nil, explicitly
625 VALUE specifies whether characters in FACE should be overlined. If
626 VALUE is t, overline with foreground color of the face. If VALUE is a
627 string, overline with that color. If VALUE is nil, explicitly don't
632 VALUE specifies whether characters in FACE should be drawn with a line
633 striking through them. If VALUE is t, use the foreground color of the
634 face. If VALUE is a string, strike-through with that color. If VALUE
635 is nil, explicitly don't strike through.
639 VALUE specifies whether characters in FACE should have a box drawn
640 around them. If VALUE is nil, explicitly don't draw boxes. If
641 VALUE is t, draw a box with lines of width 1 in the foreground color
642 of the face. If VALUE is a string, the string must be a color name,
643 and the box is drawn in that color with a line width of 1. Otherwise,
644 VALUE must be a property list of the form `(:line-width WIDTH
645 :color COLOR :style STYLE)'. If a keyword/value pair is missing from
646 the property list, a default value will be used for the value, as
647 specified below. WIDTH specifies the width of the lines to draw; it
648 defaults to 1. If WIDTH is negative, the absolute value is the width
649 of the lines, and draw top/bottom lines inside the characters area,
650 not around it. COLOR is the name of the color to draw in, default is
651 the foreground color of the face for simple boxes, and the background
652 color of the face for 3D boxes. STYLE specifies whether a 3D box
653 should be draw. If STYLE is `released-button', draw a box looking
654 like a released 3D button. If STYLE is `pressed-button' draw a box
655 that appears like a pressed button. If STYLE is nil, the default if
656 the property list doesn't contain a style specification, draw a 2D
661 VALUE specifies whether characters in FACE should be displayed in
662 inverse video. VALUE must be one of t or nil.
666 If VALUE is a string, it must be the name of a file of pixmap data.
667 The directories listed in the `x-bitmap-file-path' variable are
668 searched. Alternatively, VALUE may be a list of the form (WIDTH
669 HEIGHT DATA) where WIDTH and HEIGHT are the size in pixels, and DATA
670 is a string containing the raw bits of the bitmap. VALUE nil means
671 explicitly don't use a stipple pattern.
673 For convenience, attributes `:family', `:foundry', `:width',
674 `:height', `:weight', and `:slant' may also be set in one step
679 Set font-related face attributes from VALUE. VALUE must be a valid
680 XLFD font name. If it is a font name pattern, the first matching font
683 For compatibility with Emacs 20, keywords `:bold' and `:italic' can
684 be used to specify that a bold or italic font should be used. VALUE
685 must be t or nil in that case. A value of `unspecified' is not allowed.
689 VALUE is the name of a face from which to inherit attributes, or a list
690 of face names. Attributes from inherited faces are merged into the face
691 like an underlying face would be, with higher priority than underlying faces."
692 (setq args
(purecopy args
))
693 (let ((where (if (null frame
) 0 frame
))
696 ;; If we set the new-frame defaults, this face is modified outside Custom.
697 (if (memq where
'(0 t
))
698 (put (or (get face
'face-alias
) face
) 'face-modified t
))
699 ;; If family and/or foundry are specified, set it first. Certain
700 ;; face attributes, e.g. :weight semi-condensed, are not supported
701 ;; in every font. See bug#1127.
703 (cond ((eq (car spec
) :family
)
704 (setq family
(cadr spec
)))
705 ((eq (car spec
) :foundry
)
706 (setq foundry
(cadr spec
))))
707 (setq spec
(cddr spec
)))
708 (when (or family foundry
)
709 (when (and (stringp family
)
710 (string-match "\\([^-]*\\)-\\([^-]*\\)" family
))
712 (setq foundry
(match-string 1 family
)))
713 (setq family
(match-string 2 family
)))
714 (when (or (stringp family
) (eq family
'unspecified
))
715 (internal-set-lisp-face-attribute face
:family
(purecopy family
)
717 (when (or (stringp foundry
) (eq foundry
'unspecified
))
718 (internal-set-lisp-face-attribute face
:foundry
(purecopy foundry
)
721 (unless (memq (car args
) '(:family
:foundry
))
722 (internal-set-lisp-face-attribute face
(car args
)
723 (purecopy (cadr args
))
725 (setq args
(cddr args
)))))
727 (defun make-face-bold (face &optional frame _noerror
)
728 "Make the font of FACE be bold, if possible.
729 FRAME nil or not specified means change face on all frames.
730 Argument NOERROR is ignored and retained for compatibility.
731 Use `set-face-attribute' for finer control of the font weight."
732 (interactive (list (read-face-name "Make which face bold")))
733 (set-face-attribute face frame
:weight
'bold
))
736 (defun make-face-unbold (face &optional frame _noerror
)
737 "Make the font of FACE be non-bold, if possible.
738 FRAME nil or not specified means change face on all frames.
739 Argument NOERROR is ignored and retained for compatibility."
740 (interactive (list (read-face-name "Make which face non-bold")))
741 (set-face-attribute face frame
:weight
'normal
))
744 (defun make-face-italic (face &optional frame _noerror
)
745 "Make the font of FACE be italic, if possible.
746 FRAME nil or not specified means change face on all frames.
747 Argument NOERROR is ignored and retained for compatibility.
748 Use `set-face-attribute' for finer control of the font slant."
749 (interactive (list (read-face-name "Make which face italic")))
750 (set-face-attribute face frame
:slant
'italic
))
753 (defun make-face-unitalic (face &optional frame _noerror
)
754 "Make the font of FACE be non-italic, if possible.
755 FRAME nil or not specified means change face on all frames.
756 Argument NOERROR is ignored and retained for compatibility."
757 (interactive (list (read-face-name "Make which face non-italic")))
758 (set-face-attribute face frame
:slant
'normal
))
761 (defun make-face-bold-italic (face &optional frame _noerror
)
762 "Make the font of FACE be bold and italic, if possible.
763 FRAME nil or not specified means change face on all frames.
764 Argument NOERROR is ignored and retained for compatibility.
765 Use `set-face-attribute' for finer control of font weight and slant."
766 (interactive (list (read-face-name "Make which face bold-italic")))
767 (set-face-attribute face frame
:weight
'bold
:slant
'italic
))
770 (defun set-face-font (face font
&optional frame
)
771 "Change font-related attributes of FACE to those of FONT (a string).
772 FRAME nil or not specified means change face on all frames.
773 This sets the attributes `:family', `:foundry', `:width',
774 `:height', `:weight', and `:slant'. When called interactively,
775 prompt for the face and font."
776 (interactive (read-face-and-attribute :font
))
777 (set-face-attribute face frame
:font font
))
780 ;; Implementation note: Emulating gray background colors with a
781 ;; stipple pattern is now part of the face realization process, and is
782 ;; done in C depending on the frame on which the face is realized.
784 (defun set-face-background (face color
&optional frame
)
785 "Change the background color of face FACE to COLOR (a string).
786 FRAME nil or not specified means change face on all frames.
787 COLOR can be a system-defined color name (see `list-colors-display')
788 or a hex spec of the form #RRGGBB.
789 When called interactively, prompts for the face and color."
790 (interactive (read-face-and-attribute :background
))
791 (set-face-attribute face frame
:background
(or color
'unspecified
)))
794 (defun set-face-foreground (face color
&optional frame
)
795 "Change the foreground color of face FACE to COLOR (a string).
796 FRAME nil or not specified means change face on all frames.
797 COLOR can be a system-defined color name (see `list-colors-display')
798 or a hex spec of the form #RRGGBB.
799 When called interactively, prompts for the face and color."
800 (interactive (read-face-and-attribute :foreground
))
801 (set-face-attribute face frame
:foreground
(or color
'unspecified
)))
804 (defun set-face-stipple (face stipple
&optional frame
)
805 "Change the stipple pixmap of face FACE to STIPPLE.
806 FRAME nil or not specified means change face on all frames.
807 STIPPLE should be a string, the name of a file of pixmap data.
808 The directories listed in the `x-bitmap-file-path' variable are searched.
810 Alternatively, STIPPLE may be a list of the form (WIDTH HEIGHT DATA)
811 where WIDTH and HEIGHT are the size in pixels,
812 and DATA is a string, containing the raw bits of the bitmap."
813 (interactive (read-face-and-attribute :stipple
))
814 (set-face-attribute face frame
:stipple
(or stipple
'unspecified
)))
817 (defun set-face-underline-p (face underline
&optional frame
)
818 "Specify whether face FACE is underlined.
819 UNDERLINE nil means FACE explicitly doesn't underline.
820 UNDERLINE non-nil means FACE explicitly does underlining
821 with the same of the foreground color.
822 If UNDERLINE is a string, underline with the color named UNDERLINE.
823 FRAME nil or not specified means change face on all frames.
824 Use `set-face-attribute' to ``unspecify'' underlining."
826 (let ((list (read-face-and-attribute :underline
)))
827 (list (car list
) (eq (car (cdr list
)) t
))))
828 (set-face-attribute face frame
:underline underline
))
830 (define-obsolete-function-alias 'set-face-underline
831 'set-face-underline-p
"22.1")
834 (defun set-face-inverse-video-p (face inverse-video-p
&optional frame
)
835 "Specify whether face FACE is in inverse video.
836 INVERSE-VIDEO-P non-nil means FACE displays explicitly in inverse video.
837 INVERSE-VIDEO-P nil means FACE explicitly is not in inverse video.
838 FRAME nil or not specified means change face on all frames.
839 Use `set-face-attribute' to ``unspecify'' the inverse video attribute."
841 (let ((list (read-face-and-attribute :inverse-video
)))
842 (list (car list
) (eq (car (cdr list
)) t
))))
843 (set-face-attribute face frame
:inverse-video inverse-video-p
))
846 (defun set-face-bold-p (face bold-p
&optional frame
)
847 "Specify whether face FACE is bold.
848 BOLD-P non-nil means FACE should explicitly display bold.
849 BOLD-P nil means FACE should explicitly display non-bold.
850 FRAME nil or not specified means change face on all frames.
851 Use `set-face-attribute' or `modify-face' for finer control."
853 (make-face-unbold face frame
)
854 (make-face-bold face frame
)))
857 (defun set-face-italic-p (face italic-p
&optional frame
)
858 "Specify whether face FACE is italic.
859 ITALIC-P non-nil means FACE should explicitly display italic.
860 ITALIC-P nil means FACE should explicitly display non-italic.
861 FRAME nil or not specified means change face on all frames.
862 Use `set-face-attribute' or `modify-face' for finer control."
864 (make-face-unitalic face frame
)
865 (make-face-italic face frame
)))
868 (defalias 'set-face-background-pixmap
'set-face-stipple
)
871 (defun invert-face (face &optional frame
)
872 "Swap the foreground and background colors of FACE.
873 If FRAME is omitted or nil, it means change face on all frames.
874 If FACE specifies neither foreground nor background color,
875 set its foreground and background to the background and foreground
876 of the default face. Value is FACE."
877 (interactive (list (read-face-name "Invert face")))
878 (let ((fg (face-attribute face
:foreground frame
))
879 (bg (face-attribute face
:background frame
)))
880 (if (not (and (eq fg
'unspecified
) (eq bg
'unspecified
)))
881 (set-face-attribute face frame
:foreground bg
:background fg
)
882 (set-face-attribute face frame
884 (face-attribute 'default
:background frame
)
886 (face-attribute 'default
:foreground frame
))))
890 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
891 ;;; Interactively modifying faces.
892 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
894 (defun read-face-name (prompt &optional default multiple
)
895 "Read a face, defaulting to the face or faces on the char after point.
896 If it has the property `read-face-name', that overrides the `face' property.
897 PROMPT should be a string that describes what the caller will do with the face;
898 it should not end in a space.
899 The optional argument DEFAULT provides the value to display in the
900 minibuffer prompt that is returned if the user just types RET
901 unless DEFAULT is a string (in which case nil is returned).
902 If MULTIPLE is non-nil, return a list of faces (possibly only one).
903 Otherwise, return a single face."
904 (let ((faceprop (or (get-char-property (point) 'read-face-name
)
905 (get-char-property (point) 'face
)))
909 ;; Try to get a face name from the buffer.
910 (if (memq (intern-soft (thing-at-point 'symbol
)) (face-list))
911 (setq faces
(list (intern-soft (thing-at-point 'symbol
)))))
912 ;; Add the named faces that the `face' property uses.
913 (if (and (listp faceprop
)
914 ;; Don't treat an attribute spec as a list of faces.
915 (not (keywordp (car faceprop
)))
916 (not (memq (car faceprop
) '(foreground-color background-color
))))
920 (if (symbolp faceprop
)
921 (push faceprop faces
)))
924 ;; Build up the completion tables.
925 (mapatoms (lambda (s)
927 (if (get s
'face-alias
)
928 (push (symbol-name s
) aliasfaces
)
929 (push (symbol-name s
) nonaliasfaces
)))))
931 ;; If we only want one, and the default is more than one,
932 ;; discard the unwanted ones now.
935 (setq faces
(list (car faces
)))))
939 (completing-read-multiple
940 (if (or faces default
)
941 (format "%s (default `%s'): " prompt
942 (if faces
(mapconcat 'symbol-name faces
",")
944 (format "%s: " prompt
))
945 (completion-table-in-turn nonaliasfaces aliasfaces
)
946 nil t nil
'face-name-history
947 (if faces
(mapconcat 'symbol-name faces
","))))
948 ;; Canonicalize the output.
950 (cond ((or (equal input
"") (equal input
'("")))
951 (or faces
(unless (stringp default
) default
)))
953 (mapcar 'intern
(split-string input
", *" t
)))
955 (mapcar 'intern input
))
957 ;; Return either a list of faces or just one face.
962 ;; Not defined without X, but behind window-system test.
963 (defvar x-bitmap-file-path
)
965 (defun face-valid-attribute-values (attribute &optional frame
)
966 "Return valid values for face attribute ATTRIBUTE.
967 The optional argument FRAME is used to determine available fonts
968 and colors. If it is nil or not specified, the selected frame is used.
969 Value is an alist of (NAME . VALUE) if ATTRIBUTE expects a value out
970 of a set of discrete values. Value is `integerp' if ATTRIBUTE expects
975 (if (window-system frame
)
976 (mapcar (lambda (x) (cons x x
))
978 ;; Only one font on TTYs.
979 (list (cons "default" "default"))))
983 (mapcar #'(lambda (x) (cons (symbol-name (aref x
1)) (aref x
1)))
986 (mapcar #'(lambda (x) (cons (symbol-name (aref x
1)) (aref x
1)))
989 (mapcar #'(lambda (x) (cons (symbol-name (aref x
1)) (aref x
1)))
992 (mapcar #'(lambda (x) (cons (symbol-name x
) x
))
993 (internal-lisp-face-attribute-values attribute
)))
994 ((:underline
:overline
:strike-through
:box
)
995 (if (window-system frame
)
996 (nconc (mapcar #'(lambda (x) (cons (symbol-name x
) x
))
997 (internal-lisp-face-attribute-values attribute
))
998 (mapcar #'(lambda (c) (cons c c
))
999 (defined-colors frame
)))
1000 (mapcar #'(lambda (x) (cons (symbol-name x
) x
))
1001 (internal-lisp-face-attribute-values attribute
))))
1002 ((:foreground
:background
)
1003 (mapcar #'(lambda (c) (cons c c
))
1004 (defined-colors frame
)))
1008 (and (memq (window-system frame
) '(x ns
)) ; No stipple on w32
1011 (mapcar (lambda (dir)
1012 (and (file-readable-p dir
)
1013 (file-directory-p dir
)
1014 (directory-files dir
)))
1015 x-bitmap-file-path
)))))
1017 (cons '("none" . nil
)
1018 (mapcar #'(lambda (c) (cons (symbol-name c
) c
))
1021 (error "Internal error")))))
1022 (if (and (listp valid
) (not (memq attribute
'(:inherit
))))
1023 (nconc (list (cons "unspecified" 'unspecified
)) valid
)
1027 (defconst face-attribute-name-alist
1028 '((:family .
"font family")
1029 (:foundry .
"font foundry")
1030 (:width .
"character set width")
1031 (:height .
"height in 1/10 pt")
1032 (:weight .
"weight")
1034 (:underline .
"underline")
1035 (:overline .
"overline")
1036 (:strike-through .
"strike-through")
1038 (:inverse-video .
"inverse-video display")
1039 (:foreground .
"foreground color")
1040 (:background .
"background color")
1041 (:stipple .
"background stipple")
1042 (:inherit .
"inheritance"))
1043 "An alist of descriptive names for face attributes.
1044 Each element has the form (ATTRIBUTE-NAME . DESCRIPTION) where
1045 ATTRIBUTE-NAME is a face attribute name (a keyword symbol), and
1046 DESCRIPTION is a descriptive name for ATTRIBUTE-NAME.")
1049 (defun face-descriptive-attribute-name (attribute)
1050 "Return a descriptive name for ATTRIBUTE."
1051 (cdr (assq attribute face-attribute-name-alist
)))
1054 (defun face-read-string (face default name
&optional completion-alist
)
1055 "Interactively read a face attribute string value.
1056 FACE is the face whose attribute is read. If non-nil, DEFAULT is the
1057 default string to return if no new value is entered. NAME is a
1058 descriptive name of the attribute for prompting. COMPLETION-ALIST is an
1059 alist of valid values, if non-nil.
1061 Entering nothing accepts the default string DEFAULT.
1062 Value is the new attribute value."
1063 ;; Capitalize NAME (we don't use `capitalize' because that capitalizes
1064 ;; each word in a string separately).
1065 (setq name
(concat (upcase (substring name
0 1)) (substring name
1)))
1066 (let* ((completion-ignore-case t
)
1067 (value (completing-read
1069 (format "%s for face `%s' (default %s): "
1071 (format "%s for face `%s': " name face
))
1072 completion-alist nil nil nil nil default
)))
1073 (if (equal value
"") default value
)))
1076 (defun face-read-integer (face default name
)
1077 "Interactively read an integer face attribute value.
1078 FACE is the face whose attribute is read. DEFAULT is the default
1079 value to return if no new value is entered. NAME is a descriptive
1080 name of the attribute for prompting. Value is the new attribute value."
1082 (face-read-string face
1083 (format "%s" default
)
1085 (list (cons "unspecified" 'unspecified
)))))
1086 (cond ((equal new-value
"unspecified")
1088 ((member new-value
'("unspecified-fg" "unspecified-bg"))
1091 (string-to-number new-value
)))))
1094 (defun read-face-attribute (face attribute
&optional frame
)
1095 "Interactively read a new value for FACE's ATTRIBUTE.
1096 Optional argument FRAME nil or unspecified means read an attribute value
1097 of a global face. Value is the new attribute value."
1098 (let* ((old-value (face-attribute face attribute frame
))
1099 (attribute-name (face-descriptive-attribute-name attribute
))
1100 (valid (face-valid-attribute-values attribute frame
))
1102 ;; Represent complex attribute values as strings by printing them
1103 ;; out. Stipple can be a vector; (WIDTH HEIGHT DATA). Box can be
1104 ;; a list `(:width WIDTH :color COLOR)' or `(:width WIDTH :shadow
1106 (when (and (or (eq attribute
:stipple
)
1107 (eq attribute
:box
))
1108 (or (consp old-value
)
1109 (vectorp old-value
)))
1110 (setq old-value
(prin1-to-string old-value
)))
1111 (cond ((listp valid
)
1113 (or (car (rassoc old-value valid
))
1114 (format "%s" old-value
))))
1116 (face-read-string face default attribute-name valid
))
1117 (if (equal new-value default
)
1118 ;; Nothing changed, so don't bother with all the stuff
1119 ;; below. In particular, this avoids a non-tty color
1120 ;; from being canonicalized for a tty when the user
1121 ;; just uses the default.
1122 (setq new-value old-value
)
1123 ;; Terminal frames can support colors that don't appear
1124 ;; explicitly in VALID, using color approximation code
1125 ;; in tty-colors.el.
1126 (when (and (memq attribute
'(:foreground
:background
))
1127 (not (memq (window-system frame
) '(x w32 ns
)))
1128 (not (member new-value
1130 "unspecified-fg" "unspecified-bg"))))
1131 (setq new-value
(car (tty-color-desc new-value frame
))))
1132 (when (assoc new-value valid
)
1133 (setq new-value
(cdr (assoc new-value valid
)))))))
1134 ((eq valid
'integerp
)
1135 (setq new-value
(face-read-integer face old-value attribute-name
)))
1136 (t (error "Internal error")))
1137 ;; Convert stipple and box value text we read back to a list or
1138 ;; vector if it looks like one. This makes the assumption that a
1139 ;; pixmap file name won't start with an open-paren.
1140 (when (and (or (eq attribute
:stipple
)
1141 (eq attribute
:box
))
1143 (string-match "^[[(]" new-value
))
1144 (setq new-value
(read new-value
)))
1147 (declare-function fontset-list
"fontset.c" ())
1148 (declare-function x-list-fonts
"xfaces.c"
1149 (pattern &optional face frame maximum width
))
1151 (defun read-face-font (face &optional frame
)
1152 "Read the name of a font for FACE on FRAME.
1153 If optional argument FRAME is nil or omitted, use the selected frame."
1154 (let ((completion-ignore-case t
))
1155 (completing-read (format "Set font attributes of face `%s' from font: " face
)
1156 (append (fontset-list) (x-list-fonts "*" nil frame
)))))
1159 (defun read-all-face-attributes (face &optional frame
)
1160 "Interactively read all attributes for FACE.
1161 If optional argument FRAME is nil or omitted, use the selected frame.
1162 Value is a property list of attribute names and new values."
1164 (dolist (attribute face-attribute-name-alist result
)
1165 (setq result
(cons (car attribute
)
1166 (cons (read-face-attribute face
(car attribute
) frame
)
1169 (defun modify-face (&optional face foreground background stipple
1170 bold-p italic-p underline inverse-p frame
)
1171 "Modify attributes of faces interactively.
1172 If optional argument FRAME is nil or omitted, modify the face used
1173 for newly created frame, i.e. the global face.
1174 For non-interactive use, `set-face-attribute' is preferred.
1175 When called from Lisp, if FACE is nil, all arguments but FRAME are ignored
1176 and the face and its settings are obtained by querying the user."
1179 (set-face-attribute face frame
1180 :foreground
(or foreground
'unspecified
)
1181 :background
(or background
'unspecified
)
1185 :underline underline
1186 :inverse-video inverse-p
)
1187 (setq face
(read-face-name "Modify face"))
1188 (apply #'set-face-attribute face frame
1189 (read-all-face-attributes face frame
))))
1191 (defun read-face-and-attribute (attribute &optional frame
)
1192 "Read face name and face attribute value.
1193 ATTRIBUTE is the attribute whose new value is read.
1194 FRAME nil or unspecified means read attribute value of global face.
1195 Value is a list (FACE NEW-VALUE) where FACE is the face read
1196 \(a symbol), and NEW-VALUE is value read."
1197 (cond ((eq attribute
:font
)
1198 (let* ((prompt "Set font-related attributes of face")
1199 (face (read-face-name prompt
))
1200 (font (read-face-font face frame
)))
1203 (let* ((attribute-name (face-descriptive-attribute-name attribute
))
1204 (prompt (format "Set %s of face" attribute-name
))
1205 (face (read-face-name prompt
))
1206 (new-value (read-face-attribute face attribute frame
)))
1207 (list face new-value
)))))
1211 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1213 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1215 (defconst list-faces-sample-text
1216 "abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1217 "*Text string to display as the sample text for `list-faces-display'.")
1220 ;; The name list-faces would be more consistent, but let's avoid a
1221 ;; conflict with Lucid, which uses that name differently.
1223 (defvar help-xref-stack
)
1224 (defun list-faces-display (&optional regexp
)
1225 "List all faces, using the same sample text in each.
1226 The sample text is a string that comes from the variable
1227 `list-faces-sample-text'.
1229 If REGEXP is non-nil, list only those faces with names matching
1230 this regular expression. When called interactively with a prefix
1231 arg, prompt for a regular expression."
1232 (interactive (list (and current-prefix-arg
1233 (read-regexp "List faces matching regexp"))))
1234 (let ((all-faces (zerop (length regexp
)))
1235 (frame (selected-frame))
1238 disp-frame window face-name
)
1239 ;; We filter and take the max length in one pass
1243 (let ((s (symbol-name f
)))
1244 (when (or all-faces
(string-match regexp s
))
1245 (setq max-length
(max (length s
) max-length
))
1247 (sort (face-list) #'string-lessp
))))
1249 (error "No faces matching \"%s\"" regexp
))
1250 (setq max-length
(1+ max-length
)
1251 line-format
(format "%%-%ds" max-length
))
1252 (with-help-window "*Faces*"
1253 (with-current-buffer standard-output
1254 (setq truncate-lines t
)
1256 (substitute-command-keys
1258 "\\<help-mode-map>Use "
1259 (if (display-mouse-p) "\\[help-follow-mouse] or ")
1260 "\\[help-follow] on a face name to customize it\n"
1261 "or on its sample text for a description of the face.\n\n")))
1262 (setq help-xref-stack nil
)
1263 (dolist (face faces
)
1264 (setq face-name
(symbol-name face
))
1265 (insert (format line-format face-name
))
1266 ;; Hyperlink to a customization buffer for the face. Using
1267 ;; the help xref mechanism may not be the best way.
1270 (search-backward face-name
)
1271 (setq help-xref-stack-item
`(list-faces-display ,regexp
))
1272 (help-xref-button 0 'help-customize-face face
)))
1274 (line-beg (line-beginning-position)))
1275 (insert list-faces-sample-text
)
1276 ;; Hyperlink to a help buffer for the face.
1279 (search-backward list-faces-sample-text
)
1280 (help-xref-button 0 'help-face face
)))
1282 (put-text-property beg
(1- (point)) 'face face
)
1283 ;; Make all face commands default to the proper face
1284 ;; anywhere in the line.
1285 (put-text-property line-beg
(1- (point)) 'read-face-name face
)
1286 ;; If the sample text has multiple lines, line up all of them.
1290 (insert-char ?\s max-length
)
1292 (goto-char (point-min))))
1293 ;; If the *Faces* buffer appears in a different frame,
1294 ;; copy all the face definitions from FRAME,
1295 ;; so that the display will reflect the frame that was selected.
1296 (setq window
(get-buffer-window (get-buffer "*Faces*") t
))
1297 (setq disp-frame
(if window
(window-frame window
)
1298 (car (frame-list))))
1299 (or (eq frame disp-frame
)
1300 (let ((faces (face-list)))
1302 (copy-face (car faces
) (car faces
) frame disp-frame
)
1303 (setq faces
(cdr faces
)))))))
1306 (defun describe-face (face &optional frame
)
1307 "Display the properties of face FACE on FRAME.
1308 Interactively, FACE defaults to the faces of the character after point
1309 and FRAME defaults to the selected frame.
1311 If the optional argument FRAME is given, report on face FACE in that frame.
1312 If FRAME is t, report on the defaults for face FACE (for new frames).
1313 If FRAME is omitted or nil, use the selected frame."
1314 (interactive (list (read-face-name "Describe face" 'default t
)))
1315 (let* ((attrs '((:family .
"Family")
1316 (:foundry .
"Foundry")
1318 (:height .
"Height")
1319 (:weight .
"Weight")
1321 (:foreground .
"Foreground")
1322 (:background .
"Background")
1323 (:underline .
"Underline")
1324 (:overline .
"Overline")
1325 (:strike-through .
"Strike-through")
1327 (:inverse-video .
"Inverse")
1328 (:stipple .
"Stipple")
1330 (:fontset .
"Fontset")
1331 (:inherit .
"Inherit")))
1332 (max-width (apply #'max
(mapcar #'(lambda (x) (length (cdr x
)))
1334 (help-setup-xref (list #'describe-face face
)
1335 (called-interactively-p 'interactive
))
1337 (setq face
'default
))
1338 (if (not (listp face
))
1339 (setq face
(list face
)))
1340 (with-help-window (help-buffer)
1341 (with-current-buffer standard-output
1343 (if (stringp f
) (setq f
(intern f
)))
1344 ;; We may get called for anonymous faces (i.e., faces
1345 ;; expressed using prop-value plists). Those can't be
1346 ;; usefully customized, so ignore them.
1348 (insert "Face: " (symbol-name f
))
1350 (insert " undefined face.\n")
1351 (let ((customize-label "customize this face")
1353 (insert (concat " (" (propertize "sample" 'font-lock-face f
) ")"))
1354 (princ (concat " (" customize-label
")\n"))
1355 ;; FIXME not sure how much of this belongs here, and
1356 ;; how much in `face-documentation'. The latter is
1357 ;; not used much, but needs to return nil for
1358 ;; undocumented faces.
1359 (let ((alias (get f
'face-alias
))
1365 (format "\n %s is an alias for the face `%s'.\n%s"
1367 (if (setq obsolete
(get f
'obsolete-face
))
1368 (format " This face is obsolete%s; use `%s' instead.\n"
1369 (if (stringp obsolete
)
1370 (format " since %s" obsolete
)
1374 (insert "\nDocumentation:\n"
1375 (or (face-documentation face
)
1376 "Not documented as a face.")
1378 (with-current-buffer standard-output
1381 (concat "\\(" customize-label
"\\)") nil t
)
1382 (help-xref-button 1 'help-customize-face f
)))
1383 (setq file-name
(find-lisp-object-file-name f
'defface
))
1385 (princ "Defined in `")
1386 (princ (file-name-nondirectory file-name
))
1388 ;; Make a hyperlink to the library.
1390 (re-search-backward "`\\([^`']+\\)'" nil t
)
1391 (help-xref-button 1 'help-face-def f file-name
))
1396 (let ((attr (face-attribute f
(car a
) frame
)))
1397 (insert (make-string (- max-width
(length (cdr a
))) ?\s
)
1398 (cdr a
) ": " (format "%s" attr
))
1399 (if (and (eq (car a
) :inherit
)
1400 (not (eq attr
'unspecified
)))
1401 ;; Make a hyperlink to the parent face.
1403 (re-search-backward ": \\([^:]+\\)" nil t
)
1404 (help-xref-button 1 'help-face attr
)))
1409 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1410 ;;; Face specifications (defface).
1411 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1413 ;; Parameter FRAME Is kept for call compatibility to with previous
1414 ;; face implementation.
1416 (defun face-attr-construct (face &optional _frame
)
1417 "Return a `defface'-style attribute list for FACE.
1418 Value is a property list of pairs ATTRIBUTE VALUE for all specified
1419 face attributes of FACE where ATTRIBUTE is the attribute name and
1420 VALUE is the specified value of that attribute.
1421 Argument FRAME is ignored and retained for compatibility."
1423 (dolist (entry face-attribute-name-alist result
)
1424 (let* ((attribute (car entry
))
1425 (value (face-attribute face attribute
)))
1426 (unless (eq value
'unspecified
)
1427 (setq result
(nconc (list attribute value
) result
)))))))
1430 (defun face-spec-set-match-display (display frame
)
1431 "Non-nil if DISPLAY matches FRAME.
1432 DISPLAY is part of a spec such as can be used in `defface'.
1433 If FRAME is nil, the current FRAME is used."
1434 (let* ((conjuncts display
)
1435 conjunct req options
1436 ;; t means we have succeeded against all the conjuncts in
1437 ;; DISPLAY that have been tested so far.
1439 (if (eq conjuncts t
)
1440 (setq conjuncts nil
))
1441 (while (and conjuncts match
)
1442 (setq conjunct
(car conjuncts
)
1443 conjuncts
(cdr conjuncts
)
1445 options
(cdr conjunct
)
1446 match
(cond ((eq req
'type
)
1447 (or (memq (window-system frame
) options
)
1448 (and (memq 'graphic options
)
1449 (memq (window-system frame
) '(x w32 ns
)))
1450 ;; FIXME: This should be revisited to use
1451 ;; display-graphic-p, provided that the
1452 ;; color selection depends on the number
1453 ;; of supported colors, and all defface's
1454 ;; are changed to look at number of colors
1455 ;; instead of (type graphic) etc.
1456 (if (null (window-system frame
))
1458 (or (and (memq 'motif options
)
1460 (and (memq 'gtk options
)
1462 (and (memq 'lucid options
)
1463 (featurep 'x-toolkit
)
1464 (not (featurep 'motif
))
1465 (not (featurep 'gtk
)))
1466 (and (memq 'x-toolkit options
)
1467 (featurep 'x-toolkit
))))))
1468 ((eq req
'min-colors
)
1469 (>= (display-color-cells frame
) (car options
)))
1471 (memq (frame-parameter frame
'display-type
) options
))
1472 ((eq req
'background
)
1473 (memq (frame-parameter frame
'background-mode
)
1476 (display-supports-face-attributes-p options frame
))
1477 (t (error "Unknown req `%S' with options `%S'"
1482 (defun face-spec-choose (spec &optional frame
)
1483 "Choose the proper attributes for FRAME, out of SPEC.
1484 If SPEC is nil, return nil."
1486 (setq frame
(selected-frame)))
1490 (let* ((entry (pop tail
))
1491 (display (car entry
))
1494 ;; Get the attributes as actually specified by this alternative.
1496 (if (null (cdr attrs
)) ;; was (listp (car attrs))
1497 ;; Old-style entry, the attribute list is the
1502 ;; If the condition is `default', that sets the default
1503 ;; for following conditions.
1504 (if (eq display
'default
)
1505 (setq defaults thisval
)
1506 ;; Otherwise, if it matches, use it.
1507 (when (face-spec-set-match-display display frame
)
1508 (setq result thisval
)
1510 (if defaults
(append result defaults
) result
)))
1513 (defun face-spec-reset-face (face &optional frame
)
1514 "Reset all attributes of FACE on FRAME to unspecified."
1516 (dolist (attr-and-name face-attribute-name-alist
)
1517 (push 'unspecified reset-args
)
1518 (push (car attr-and-name
) reset-args
))
1519 (apply 'set-face-attribute face frame reset-args
)))
1521 (defun face-spec-set (face spec
&optional for-defface
)
1522 "Set FACE's face spec, which controls its appearance, to SPEC.
1523 If FOR-DEFFACE is t, set the base spec, the one that `defface'
1524 and Custom set. (In that case, the caller must put it in the
1525 appropriate property, because that depends on the caller.)
1526 If FOR-DEFFACE is nil, set the overriding spec (and store it
1527 in the `face-override-spec' property of FACE).
1529 The appearance of FACE is controlled by the base spec,
1530 by any custom theme specs on top of that, and by the
1531 overriding spec on top of all the rest.
1533 FOR-DEFFACE can also be a frame, in which case we set the
1534 frame-specific attributes of FACE for that frame based on SPEC.
1535 That usage is deprecated.
1537 See `defface' for information about the format and meaning of SPEC."
1538 (if (framep for-defface
)
1539 ;; Handle the deprecated case where third arg is a frame.
1540 (face-spec-set-2 face for-defface spec
)
1542 ;; When we reset the face based on its custom spec, then it is
1543 ;; unmodified as far as Custom is concerned.
1544 (put (or (get face
'face-alias
) face
) 'face-modified nil
)
1545 ;; When we change a face based on a spec from outside custom,
1546 ;; record it for future frames.
1547 (put (or (get face
'face-alias
) face
) 'face-override-spec spec
))
1548 ;; Reset each frame according to the rules implied by all its specs.
1549 (dolist (frame (frame-list))
1550 (face-spec-recalc face frame
))))
1552 (defun face-spec-recalc (face frame
)
1553 "Reset the face attributes of FACE on FRAME according to its specs.
1554 This applies the defface/custom spec first, then the custom theme specs,
1555 then the override spec."
1556 (face-spec-reset-face face frame
)
1557 (let ((face-sym (or (get face
'face-alias
) face
)))
1558 (or (get face
'customized-face
)
1559 (get face
'saved-face
)
1560 (face-spec-set-2 face frame
(face-default-spec face
)))
1561 (let ((theme-faces (reverse (get face-sym
'theme-face
))))
1562 (dolist (spec theme-faces
)
1563 (face-spec-set-2 face frame
(cadr spec
))))
1564 (face-spec-set-2 face frame
(get face-sym
'face-override-spec
))))
1566 (defun face-spec-set-2 (face frame spec
)
1567 "Set the face attributes of FACE on FRAME according to SPEC."
1568 (let* ((spec (face-spec-choose spec frame
))
1571 (when (assq (car spec
) face-x-resources
)
1572 (push (car spec
) attrs
)
1573 (push (cadr spec
) attrs
))
1574 (setq spec
(cddr spec
)))
1575 (apply 'set-face-attribute face frame
(nreverse attrs
))))
1577 (defun face-attr-match-p (face attrs
&optional frame
)
1578 "Return t if attributes of FACE match values in plist ATTRS.
1579 Optional parameter FRAME is the frame whose definition of FACE
1580 is used. If nil or omitted, use the selected frame."
1582 (setq frame
(selected-frame)))
1583 (let* ((list face-attribute-name-alist
)
1585 (bold (and (plist-member attrs
:bold
)
1586 (not (plist-member attrs
:weight
))))
1587 (italic (and (plist-member attrs
:italic
)
1588 (not (plist-member attrs
:slant
))))
1589 (plist (if (or bold italic
)
1590 (copy-sequence attrs
)
1592 ;; Handle the Emacs 20 :bold and :italic properties.
1594 (plist-put plist
:weight
(if bold
'bold
'normal
)))
1596 (plist-put plist
:slant
(if italic
'italic
'normal
)))
1597 (while (and match list
)
1598 (let* ((attr (caar list
))
1600 (if (plist-member plist attr
)
1601 (plist-get plist attr
)
1603 (value-now (face-attribute face attr frame
)))
1604 (setq match
(equal specified-value value-now
))
1605 (setq list
(cdr list
))))
1608 (defsubst face-spec-match-p
(face spec
&optional frame
)
1609 "Return t if FACE, on FRAME, matches what SPEC says it should look like."
1610 (face-attr-match-p face
(face-spec-choose spec frame
) frame
))
1612 (defsubst face-default-spec
(face)
1613 "Return the default face-spec for FACE, ignoring any user customization.
1614 If there is no default for FACE, return nil."
1615 (get face
'face-defface-spec
))
1617 (defsubst face-user-default-spec
(face)
1618 "Return the user's customized face-spec for FACE, or the default if none.
1619 If there is neither a user setting nor a default for FACE, return nil."
1620 (or (get face
'customized-face
)
1621 (get face
'saved-face
)
1622 (face-default-spec face
)))
1625 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1626 ;;; Frame-type independent color support.
1627 ;;; We keep the old x-* names as aliases for back-compatibility.
1628 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1630 (defun defined-colors (&optional frame
)
1631 "Return a list of colors supported for a particular frame.
1632 The argument FRAME specifies which frame to try.
1633 The value may be different for frames on different display types.
1634 If FRAME doesn't support colors, the value is nil.
1635 If FRAME is nil, that stands for the selected frame."
1636 (if (memq (framep (or frame
(selected-frame))) '(x w32 ns
))
1637 (xw-defined-colors frame
)
1638 (mapcar 'car
(tty-color-alist frame
))))
1639 (defalias 'x-defined-colors
'defined-colors
)
1641 (declare-function xw-color-defined-p
"xfns.c" (color &optional frame
))
1643 (defun color-defined-p (color &optional frame
)
1644 "Return non-nil if color COLOR is supported on frame FRAME.
1645 If FRAME is omitted or nil, use the selected frame.
1646 If COLOR is the symbol `unspecified' or one of the strings
1647 \"unspecified-fg\" or \"unspecified-bg\", the value is nil."
1648 (if (member color
'(unspecified "unspecified-bg" "unspecified-fg"))
1650 (if (member (framep (or frame
(selected-frame))) '(x w32 ns
))
1651 (xw-color-defined-p color frame
)
1652 (numberp (tty-color-translate color frame
)))))
1653 (defalias 'x-color-defined-p
'color-defined-p
)
1655 (declare-function xw-color-values
"xfns.c" (color &optional frame
))
1657 (defun color-values (color &optional frame
)
1658 "Return a description of the color named COLOR on frame FRAME.
1659 COLOR should be a string naming a color (e.g. \"white\"), or a
1660 string specifying a color's RGB components (e.g. \"#ff12ec\").
1662 Return a list of three integers, (RED GREEN BLUE), each between 0
1663 and either 65280 or 65535 (the maximum depends on the system).
1664 Use `color-name-to-rgb' if you want RGB floating-point values
1667 If FRAME is omitted or nil, use the selected frame.
1668 If FRAME cannot display COLOR, the value is nil.
1670 COLOR can also be the symbol `unspecified' or one of the strings
1671 \"unspecified-fg\" or \"unspecified-bg\", in which case the
1672 return value is nil."
1674 ((member color
'(unspecified "unspecified-fg" "unspecified-bg"))
1676 ((memq (framep (or frame
(selected-frame))) '(x w32 ns
))
1677 (xw-color-values color frame
))
1679 (tty-color-values color frame
))))
1681 (defalias 'x-color-values
'color-values
)
1683 (declare-function xw-display-color-p
"xfns.c" (&optional terminal
))
1685 (defun display-color-p (&optional display
)
1686 "Return t if DISPLAY supports color.
1687 The optional argument DISPLAY specifies which display to ask about.
1688 DISPLAY should be either a frame or a display name (a string).
1689 If omitted or nil, that stands for the selected frame's display."
1690 (if (memq (framep-on-display display
) '(x w32 ns
))
1691 (xw-display-color-p display
)
1692 (tty-display-color-p display
)))
1693 (defalias 'x-display-color-p
'display-color-p
)
1695 (declare-function x-display-grayscale-p
"xfns.c" (&optional terminal
))
1697 (defun display-grayscale-p (&optional display
)
1698 "Return non-nil if frames on DISPLAY can display shades of gray."
1699 (let ((frame-type (framep-on-display display
)))
1701 ((memq frame-type
'(x w32 ns
))
1702 (x-display-grayscale-p display
))
1704 (> (tty-color-gray-shades display
) 2)))))
1706 (defun read-color (&optional prompt convert-to-RGB allow-empty-name msg
)
1707 "Read a color name or RGB triplet of the form \"#RRRRGGGGBBBB\".
1708 Completion is available for color names, but not for RGB triplets.
1710 RGB triplets have the form #XXXXXXXXXXXX, where each X is a hex
1711 digit. The number of Xs must be a multiple of 3, with the same
1712 number of Xs for each of red, green, and blue. The order is red,
1715 In addition to standard color names and RGB hex values, the
1716 following are available as color candidates. In each case, the
1717 corresponding color is used.
1719 * `foreground at point' - foreground under the cursor
1720 * `background at point' - background under the cursor
1722 Optional arg PROMPT is the prompt; if nil, use a default prompt.
1724 Interactively, or with optional arg CONVERT-TO-RGB-P non-nil,
1725 convert an input color name to an RGB hex string. Return the RGB
1728 If optional arg ALLOW-EMPTY-NAME is non-nil, the user is allowed
1729 to enter an empty color name (the empty string).
1731 Interactively, or with optional arg MSG non-nil, print the
1732 resulting color name in the echo area."
1733 (interactive "i\np\ni\np") ; Always convert to RGB interactively.
1734 (let* ((completion-ignore-case t
)
1735 (colors (or facemenu-color-alist
1736 (append '("foreground at point" "background at point")
1737 (if allow-empty-name
'(""))
1739 (color (completing-read
1740 (or prompt
"Color (name or #RGB triplet): ")
1741 ;; Completing function for reading colors, accepting
1742 ;; both color names and RGB triplets.
1743 (lambda (string pred flag
)
1745 ((null flag
) ; Try completion.
1746 (or (try-completion string colors pred
)
1747 (if (color-defined-p string
)
1749 ((eq flag t
) ; List all completions.
1750 (or (all-completions string colors pred
)
1751 (if (color-defined-p string
)
1753 ((eq flag
'lambda
) ; Test completion.
1754 (or (memq string colors
)
1755 (color-defined-p string
)))))
1758 ;; Process named colors.
1759 (when (member color colors
)
1760 (cond ((string-equal color
"foreground at point")
1761 (setq color
(foreground-color-at-point)))
1762 ((string-equal color
"background at point")
1763 (setq color
(background-color-at-point))))
1764 (when (and convert-to-RGB
1765 (not (string-equal color
"")))
1766 (let ((components (x-color-values color
)))
1767 (unless (string-match "^#\\([a-fA-F0-9][a-fA-F0-9][a-fA-F0-9]\\)+$" color
)
1768 (setq color
(format "#%04X%04X%04X"
1769 (logand 65535 (nth 0 components
))
1770 (logand 65535 (nth 1 components
))
1771 (logand 65535 (nth 2 components
))))))))
1772 (when msg
(message "Color: `%s'" color
))
1776 (defun face-at-point ()
1777 "Return the face of the character after point.
1778 If it has more than one face, return the first one.
1779 Return nil if it has no specified face."
1780 (let* ((faceprop (or (get-char-property (point) 'read-face-name
)
1781 (get-char-property (point) 'face
)
1783 (face (cond ((symbolp faceprop
) faceprop
)
1784 ;; List of faces (don't treat an attribute spec).
1785 ;; Just use the first face.
1786 ((and (consp faceprop
) (not (keywordp (car faceprop
)))
1787 (not (memq (car faceprop
)
1788 '(foreground-color background-color
))))
1790 (t nil
)))) ; Invalid face value.
1791 (if (facep face
) face nil
)))
1793 (defun foreground-color-at-point ()
1794 "Return the foreground color of the character after point."
1795 ;; `face-at-point' alone is not sufficient. It only gets named faces.
1796 ;; Need also pick up any face properties that are not associated with named faces.
1797 (let ((face (or (face-at-point)
1798 (get-char-property (point) 'read-face-name
)
1799 (get-char-property (point) 'face
))))
1800 (cond ((and face
(symbolp face
))
1801 (let ((value (face-foreground face nil
'default
)))
1802 (if (member value
'("unspecified-fg" "unspecified-bg"))
1806 (cond ((memq 'foreground-color face
) (cdr (memq 'foreground-color face
)))
1807 ((memq ':foreground face
) (cadr (memq ':foreground face
)))))
1808 (t nil
)))) ; Invalid face value.
1810 (defun background-color-at-point ()
1811 "Return the background color of the character after point."
1812 ;; `face-at-point' alone is not sufficient. It only gets named faces.
1813 ;; Need also pick up any face properties that are not associated with named faces.
1814 (let ((face (or (face-at-point)
1815 (get-char-property (point) 'read-face-name
)
1816 (get-char-property (point) 'face
))))
1817 (cond ((and face
(symbolp face
))
1818 (let ((value (face-background face nil
'default
)))
1819 (if (member value
'("unspecified-fg" "unspecified-bg"))
1823 (cond ((memq 'background-color face
) (cdr (memq 'background-color face
)))
1824 ((memq ':background face
) (cadr (memq ':background face
)))))
1825 (t nil
)))) ; Invalid face value.
1828 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1830 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1832 (declare-function x-parse-geometry
"frame.c" (string))
1834 (defun x-handle-named-frame-geometry (parameters)
1835 "Add geometry parameters for a named frame to parameter list PARAMETERS.
1836 Value is the new parameter list."
1837 ;; Note that `x-resource-name' has a global meaning.
1838 (let ((x-resource-name (cdr (assq 'name parameters
))))
1839 (when x-resource-name
1840 ;; Before checking X resources, we must have an X connection.
1843 (x-open-connection (or (cdr (assq 'display parameters
))
1845 (let (res-geometry parsed
)
1846 (and (setq res-geometry
(x-get-resource "geometry" "Geometry"))
1847 (setq parsed
(x-parse-geometry res-geometry
))
1849 (append parameters parsed
1850 ;; If the resource specifies a position,
1851 ;; take note of that.
1852 (if (or (assq 'top parsed
) (assq 'left parsed
))
1853 '((user-position . t
) (user-size . t
)))))))))
1857 (defun x-handle-reverse-video (frame parameters
)
1858 "Handle the reverse-video frame parameter and X resource.
1859 `x-create-frame' does not handle this one."
1860 (when (cdr (or (assq 'reverse parameters
)
1861 (let ((resource (x-get-resource "reverseVideo"
1864 (cons nil
(member (downcase resource
)
1865 '("on" "true")))))))
1866 (let* ((params (frame-parameters frame
))
1867 (bg (cdr (assq 'foreground-color params
)))
1868 (fg (cdr (assq 'background-color params
))))
1869 (modify-frame-parameters frame
1870 (list (cons 'foreground-color fg
)
1871 (cons 'background-color bg
)))
1872 (if (equal bg
(cdr (assq 'border-color params
)))
1873 (modify-frame-parameters frame
1874 (list (cons 'border-color fg
))))
1875 (if (equal bg
(cdr (assq 'mouse-color params
)))
1876 (modify-frame-parameters frame
1877 (list (cons 'mouse-color fg
))))
1878 (if (equal bg
(cdr (assq 'cursor-color params
)))
1879 (modify-frame-parameters frame
1880 (list (cons 'cursor-color fg
)))))))
1882 (declare-function x-create-frame
"xfns.c" (parms))
1883 (declare-function x-setup-function-keys
"term/common-win" (frame))
1885 (defun x-create-frame-with-faces (&optional parameters
)
1886 "Create and return a frame with frame parameters PARAMETERS.
1887 If PARAMETERS specify a frame name, handle X geometry resources
1888 for that name. If PARAMETERS includes a `reverse' parameter, or
1889 the X resource ``reverseVideo'' is present, handle that."
1890 (setq parameters
(x-handle-named-frame-geometry parameters
))
1891 (let* ((params (copy-tree parameters
))
1892 (visibility-spec (assq 'visibility parameters
))
1893 (delayed-params '(foreground-color background-color font
1894 border-color cursor-color mouse-color
1895 visibility scroll-bar-foreground
1896 scroll-bar-background
))
1898 (dolist (param delayed-params
)
1899 (setq params
(assq-delete-all param params
)))
1900 (setq frame
(x-create-frame `((visibility . nil
) .
,params
)))
1903 (x-setup-function-keys frame
)
1904 (x-handle-reverse-video frame parameters
)
1905 (frame-set-background-mode frame t
)
1906 (face-set-after-frame-default frame parameters
)
1907 (if (null visibility-spec
)
1908 (make-frame-visible frame
)
1909 (modify-frame-parameters frame
(list visibility-spec
)))
1912 (delete-frame frame
)))
1915 (defun face-set-after-frame-default (frame &optional parameters
)
1916 "Initialize the frame-local faces of FRAME.
1917 Calculate the face definitions using the face specs, custom theme
1918 settings, X resources, and `face-new-frame-defaults'.
1919 Finally, apply any relevant face attributes found amongst the
1920 frame parameters in PARAMETERS."
1921 (let ((window-system-p (memq (window-system frame
) '(x w32
))))
1922 ;; The `reverse' is so that `default' goes first.
1923 (dolist (face (nreverse (face-list)))
1926 ;; Initialize faces from face spec and custom theme.
1927 (face-spec-recalc face frame
)
1928 ;; X resouces for the default face are applied during
1929 ;; `x-create-frame'.
1930 (and (not (eq face
'default
)) window-system-p
1931 (make-face-x-resource-internal face frame
))
1932 ;; Apply attributes specified by face-new-frame-defaults
1933 (internal-merge-in-global-face face frame
))
1934 ;; Don't let invalid specs prevent frame creation.
1937 ;; Apply attributes specified by frame parameters.
1938 (let ((face-params '((foreground-color default
:foreground
)
1939 (background-color default
:background
)
1940 (font default
:font
)
1941 (border-color border
:background
)
1942 (cursor-color cursor
:background
)
1943 (scroll-bar-foreground scroll-bar
:foreground
)
1944 (scroll-bar-background scroll-bar
:background
)
1945 (mouse-color mouse
:background
))))
1946 (dolist (param face-params
)
1947 (let* ((param-name (nth 0 param
))
1948 (value (cdr (assq param-name parameters
))))
1950 (set-face-attribute (nth 1 param
) frame
1951 (nth 2 param
) value
))))))
1953 (defun tty-handle-reverse-video (frame parameters
)
1954 "Handle the reverse-video frame parameter for terminal frames."
1955 (when (cdr (assq 'reverse parameters
))
1956 (let* ((params (frame-parameters frame
))
1957 (bg (cdr (assq 'foreground-color params
)))
1958 (fg (cdr (assq 'background-color params
))))
1959 (modify-frame-parameters frame
1960 (list (cons 'foreground-color fg
)
1961 (cons 'background-color bg
)))
1962 (if (equal bg
(cdr (assq 'mouse-color params
)))
1963 (modify-frame-parameters frame
1964 (list (cons 'mouse-color fg
))))
1965 (if (equal bg
(cdr (assq 'cursor-color params
)))
1966 (modify-frame-parameters frame
1967 (list (cons 'cursor-color fg
)))))))
1970 (defun tty-create-frame-with-faces (&optional parameters
)
1971 "Create and return a frame from optional frame parameters PARAMETERS.
1972 If PARAMETERS contains a `reverse' parameter, handle that."
1973 (let ((frame (make-terminal-frame parameters
))
1976 (with-selected-frame frame
1977 (tty-handle-reverse-video frame
(frame-parameters frame
))
1979 (unless (terminal-parameter frame
'terminal-initted
)
1980 (set-terminal-parameter frame
'terminal-initted t
)
1981 (set-locale-environment nil frame
)
1982 (tty-run-terminal-initialization frame
))
1983 (frame-set-background-mode frame t
)
1984 (face-set-after-frame-default frame parameters
)
1987 (delete-frame frame
)))
1990 (defun tty-find-type (pred type
)
1991 "Return the longest prefix of TYPE to which PRED returns non-nil.
1992 TYPE should be a tty type name such as \"xterm-16color\".
1994 The function tries only those prefixes that are followed by a
1995 dash or underscore in the original type name, like \"xterm\" in
1999 (not (funcall pred type
)))
2000 ;; Strip off last hyphen and what follows, then try again
2002 (if (setq hyphend
(string-match "[-_][^-_]+$" type
))
2003 (substring type
0 hyphend
)
2007 (defun tty-run-terminal-initialization (frame &optional type
)
2008 "Run the special initialization code for the terminal type of FRAME.
2009 The optional TYPE parameter may be used to override the autodetected
2010 terminal type to a different value."
2011 (setq type
(or type
(tty-type frame
)))
2012 ;; Load library for our terminal type.
2013 ;; User init file can set term-file-prefix to nil to prevent this.
2014 (with-selected-frame frame
2015 (unless (null term-file-prefix
)
2016 (let* (term-init-func)
2017 ;; First, load the terminal initialization file, if it is
2018 ;; available and it hasn't been loaded already.
2019 (tty-find-type #'(lambda (type)
2020 (let ((file (locate-library (concat term-file-prefix type
))))
2022 (or (assoc file load-history
)
2025 ;; Next, try to find a matching initialization function, and call it.
2026 (tty-find-type #'(lambda (type)
2027 (fboundp (setq term-init-func
2028 (intern (concat "terminal-init-" type
)))))
2030 (when (fboundp term-init-func
)
2031 (funcall term-init-func
))
2032 (set-terminal-parameter frame
'terminal-initted term-init-func
)))))
2034 ;; Called from C function init_display to initialize faces of the
2035 ;; dumped terminal frame on startup.
2037 (defun tty-set-up-initial-frame-faces ()
2038 (let ((frame (selected-frame)))
2039 (frame-set-background-mode frame t
)
2040 (face-set-after-frame-default frame
)))
2044 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2046 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2048 (defgroup basic-faces nil
2049 "The standard faces of Emacs."
2053 '((t nil
)) ; If this were nil, face-defface-spec would not be set.
2054 "Basic default face."
2055 :group
'basic-faces
)
2060 :group
'basic-faces
)
2063 '((((supports :slant italic
))
2065 (((supports :underline t
))
2068 ;; Default to italic, even if it doesn't appear to be supported,
2069 ;; because in some cases the display engine will do its own
2070 ;; workaround (to `dim' on ttys).
2072 "Basic italic face."
2073 :group
'basic-faces
)
2075 (defface bold-italic
2076 '((t :weight bold
:slant italic
))
2077 "Basic bold-italic face."
2078 :group
'basic-faces
)
2081 '((((supports :underline t
))
2083 (((supports :weight bold
))
2086 "Basic underlined face."
2087 :group
'basic-faces
)
2089 (defface fixed-pitch
2090 '((t :family
"Monospace"))
2091 "The basic fixed-pitch face."
2092 :group
'basic-faces
)
2094 (defface variable-pitch
2095 '((t :family
"Sans Serif"))
2096 "The basic variable-pitch face."
2097 :group
'basic-faces
)
2100 '((((class color grayscale
) (min-colors 88) (background light
))
2101 :foreground
"grey50")
2102 (((class color grayscale
) (min-colors 88) (background dark
))
2103 :foreground
"grey70")
2104 (((class color
) (min-colors 8) (background light
))
2105 :foreground
"green")
2106 (((class color
) (min-colors 8) (background dark
))
2107 :foreground
"yellow"))
2108 "Basic face for shadowed text."
2113 '((((class color
) (min-colors 88) (background light
))
2114 :foreground
"RoyalBlue3" :underline t
)
2115 (((class color
) (background light
))
2116 :foreground
"blue" :underline t
)
2117 (((class color
) (min-colors 88) (background dark
))
2118 :foreground
"cyan1" :underline t
)
2119 (((class color
) (background dark
))
2120 :foreground
"cyan" :underline t
)
2121 (t :inherit underline
))
2122 "Basic face for unvisited links."
2126 (defface link-visited
2127 '((default :inherit link
)
2128 (((class color
) (background light
)) :foreground
"magenta4")
2129 (((class color
) (background dark
)) :foreground
"violet"))
2130 "Basic face for visited links."
2135 '((((class color
) (min-colors 88) (background light
))
2136 :background
"darkseagreen2")
2137 (((class color
) (min-colors 88) (background dark
))
2138 :background
"darkolivegreen")
2139 (((class color
) (min-colors 16) (background light
))
2140 :background
"darkseagreen2")
2141 (((class color
) (min-colors 16) (background dark
))
2142 :background
"darkolivegreen")
2143 (((class color
) (min-colors 8))
2144 :background
"green" :foreground
"black")
2145 (t :inverse-video t
))
2146 "Basic face for highlighting."
2147 :group
'basic-faces
)
2149 ;; Region face: under NS, default to the system-defined selection
2150 ;; color (optimized for the fixed white background of other apps),
2151 ;; if background is light.
2153 '((((class color
) (min-colors 88) (background dark
))
2154 :background
"blue3")
2155 (((class color
) (min-colors 88) (background light
) (type gtk
))
2156 :foreground
"gtk_selection_fg_color"
2157 :background
"gtk_selection_bg_color")
2158 (((class color
) (min-colors 88) (background light
) (type ns
))
2159 :background
"ns_selection_color")
2160 (((class color
) (min-colors 88) (background light
))
2161 :background
"lightgoldenrod2")
2162 (((class color
) (min-colors 16) (background dark
))
2163 :background
"blue3")
2164 (((class color
) (min-colors 16) (background light
))
2165 :background
"lightgoldenrod2")
2166 (((class color
) (min-colors 8))
2167 :background
"blue" :foreground
"white")
2168 (((type tty
) (class mono
))
2170 (t :background
"gray"))
2171 "Basic face for highlighting the region."
2173 :group
'basic-faces
)
2175 (defface secondary-selection
2176 '((((class color
) (min-colors 88) (background light
))
2177 :background
"yellow1")
2178 (((class color
) (min-colors 88) (background dark
))
2179 :background
"SkyBlue4")
2180 (((class color
) (min-colors 16) (background light
))
2181 :background
"yellow")
2182 (((class color
) (min-colors 16) (background dark
))
2183 :background
"SkyBlue4")
2184 (((class color
) (min-colors 8))
2185 :background
"cyan" :foreground
"black")
2186 (t :inverse-video t
))
2187 "Basic face for displaying the secondary selection."
2188 :group
'basic-faces
)
2190 (defface trailing-whitespace
2191 '((((class color
) (background light
))
2193 (((class color
) (background dark
))
2195 (t :inverse-video t
))
2196 "Basic face for highlighting trailing whitespace."
2198 :group
'whitespace-faces
; like `show-trailing-whitespace'
2199 :group
'basic-faces
)
2201 (defface escape-glyph
2202 '((((background dark
)) :foreground
"cyan")
2203 ;; See the comment in minibuffer-prompt for
2204 ;; the reason not to use blue on MS-DOS.
2205 (((type pc
)) :foreground
"magenta")
2206 ;; red4 is too dark, but some say blue is too loud.
2207 ;; brown seems to work ok. -- rms.
2208 (t :foreground
"brown"))
2209 "Face for characters displayed as sequences using `^' or `\\'."
2213 (defface nobreak-space
2214 '((((class color
) (min-colors 88)) :inherit escape-glyph
:underline t
)
2215 (((class color
) (min-colors 8)) :background
"magenta")
2216 (t :inverse-video t
))
2217 "Face for displaying nobreak space."
2221 (defgroup mode-line-faces nil
2222 "Faces used in the mode line."
2228 '((((class color
) (min-colors 88))
2229 :box
(:line-width -
1 :style released-button
)
2230 :background
"grey75" :foreground
"black")
2233 "Basic mode line face for selected window."
2235 :group
'mode-line-faces
2236 :group
'basic-faces
)
2237 ;; No need to define aliases of this form for new faces.
2238 (define-obsolete-face-alias 'modeline
'mode-line
"21.1")
2240 (defface mode-line-inactive
2243 (((class color
) (min-colors 88) (background light
))
2245 :box
(:line-width -
1 :color
"grey75" :style nil
)
2246 :foreground
"grey20" :background
"grey90")
2247 (((class color
) (min-colors 88) (background dark
) )
2249 :box
(:line-width -
1 :color
"grey40" :style nil
)
2250 :foreground
"grey80" :background
"grey30"))
2251 "Basic mode line face for non-selected windows."
2253 :group
'mode-line-faces
2254 :group
'basic-faces
)
2255 (define-obsolete-face-alias 'modeline-inactive
'mode-line-inactive
"22.1")
2257 (defface mode-line-highlight
2258 '((((class color
) (min-colors 88))
2259 :box
(:line-width
2 :color
"grey40" :style released-button
))
2261 :inherit highlight
))
2262 "Basic mode line face for highlighting."
2264 :group
'mode-line-faces
2265 :group
'basic-faces
)
2266 (define-obsolete-face-alias 'modeline-highlight
'mode-line-highlight
"22.1")
2268 (defface mode-line-emphasis
2269 '((t (:weight bold
)))
2270 "Face used to emphasize certain mode line features.
2271 Use the face `mode-line-highlight' for features that can be selected."
2273 :group
'mode-line-faces
2274 :group
'basic-faces
)
2276 (defface mode-line-buffer-id
2277 '((t (:weight bold
)))
2278 "Face used for buffer identification parts of the mode line."
2280 :group
'mode-line-faces
2281 :group
'basic-faces
)
2282 (define-obsolete-face-alias 'modeline-buffer-id
'mode-line-buffer-id
"22.1")
2284 (defface header-line
2288 ;; This used to be `:inverse-video t', but that doesn't look very
2289 ;; good when combined with inverse-video mode-lines and multiple
2290 ;; windows. Underlining looks better, and is more consistent with
2291 ;; the window-system face variants, which deemphasize the
2292 ;; header-line in relation to the mode-line face. If a terminal
2293 ;; can't underline, then the header-line will end up without any
2294 ;; highlighting; this may be too confusing in general, although it
2295 ;; happens to look good with the only current use of header-lines,
2296 ;; the info browser. XXX
2297 :inverse-video nil
;Override the value inherited from mode-line.
2299 (((class color grayscale
) (background light
))
2300 :background
"grey90" :foreground
"grey20"
2302 (((class color grayscale
) (background dark
))
2303 :background
"grey20" :foreground
"grey90"
2305 (((class mono
) (background light
))
2306 :background
"white" :foreground
"black"
2310 (((class mono
) (background dark
))
2311 :background
"black" :foreground
"white"
2315 "Basic header-line face."
2317 :group
'basic-faces
)
2319 (defface vertical-border
2320 '((((type tty
)) :inherit mode-line-inactive
))
2321 "Face used for vertical window dividers on ttys."
2323 :group
'basic-faces
)
2325 (defface minibuffer-prompt
2326 '((((background dark
)) :foreground
"cyan")
2327 ;; Don't use blue because many users of the MS-DOS port customize
2328 ;; their foreground color to be blue.
2329 (((type pc
)) :foreground
"magenta")
2330 (t :foreground
"medium blue"))
2331 "Face for minibuffer prompts.
2332 By default, Emacs automatically adds this face to the value of
2333 `minibuffer-prompt-properties', which is a list of text properties
2334 used to display the prompt text."
2336 :group
'basic-faces
)
2338 (setq minibuffer-prompt-properties
2339 (append minibuffer-prompt-properties
(list 'face
'minibuffer-prompt
)))
2342 '((((class color
) (background light
))
2343 :background
"grey95")
2344 (((class color
) (background dark
))
2345 :background
"grey10")
2347 :background
"gray"))
2348 "Basic face for the fringes to the left and right of windows under X."
2351 :group
'basic-faces
)
2353 (defface scroll-bar
'((t nil
))
2354 "Basic face for the scroll bar colors under X."
2357 :group
'basic-faces
)
2359 (defface border
'((t nil
))
2360 "Basic face for the frame border under X."
2363 :group
'basic-faces
)
2366 '((((background light
)) :background
"black")
2367 (((background dark
)) :background
"white"))
2368 "Basic face for the cursor color under X.
2369 Currently, only the `:background' attribute is meaningful; all
2370 other attributes are ignored. The cursor foreground color is
2371 taken from the background color of the underlying text.
2373 Note: Other faces cannot inherit from the cursor face."
2376 :group
'basic-faces
)
2378 (put 'cursor
'face-no-inherit t
)
2380 (defface mouse
'((t nil
))
2381 "Basic face for the mouse color under X."
2384 :group
'basic-faces
)
2388 :box
(:line-width
1 :style released-button
)
2389 :foreground
"black")
2390 (((type x w32 ns
) (class color
))
2391 :background
"grey75")
2392 (((type x
) (class mono
))
2393 :background
"grey"))
2394 "Basic tool-bar face."
2396 :group
'basic-faces
)
2405 "Basic face for the font and colors of the menu bar and popup menus."
2408 :group
'basic-faces
)
2410 (defface help-argument-name
'((((supports :slant italic
)) :inherit italic
))
2411 "Face to highlight argument names in *Help* buffers."
2414 (defface glyphless-char
2415 '((((type tty
)) :inherit underline
)
2416 (((type pc
)) :inherit escape-glyph
)
2418 "Face for displaying non-graphic characters (e.g. U+202A (LRE)).
2419 It is used for characters of no fonts too."
2421 :group
'basic-faces
)
2424 '((((class color
) (min-colors 88) (background light
)) (:foreground
"Red1" :weight bold
))
2425 (((class color
) (min-colors 88) (background dark
)) (:foreground
"Pink" :weight bold
))
2426 (((class color
) (min-colors 16) (background light
)) (:foreground
"Red1" :weight bold
))
2427 (((class color
) (min-colors 16) (background dark
)) (:foreground
"Pink" :weight bold
))
2428 (((class color
) (min-colors 8)) (:foreground
"red"))
2429 (t (:inverse-video t
:weight bold
)))
2430 "Basic face used to highlight errors and to denote failure."
2432 :group
'basic-faces
)
2435 '((((class color
) (min-colors 16)) (:foreground
"DarkOrange" :weight bold
))
2436 (((class color
)) (:foreground
"yellow" :weight bold
))
2438 "Basic face used to highlight warnings."
2440 :group
'basic-faces
)
2443 '((((class color
) (min-colors 16) (background light
))
2444 (:foreground
"ForestGreen" :weight bold
))
2445 (((class color
) (min-colors 88) (background dark
))
2446 (:foreground
"Green1" :weight bold
))
2447 (((class color
) (min-colors 16) (background dark
))
2448 (:foreground
"Green" :weight bold
))
2449 (((class color
)) (:foreground
"green" :weight bold
))
2451 "Basic face used to indicate successful operation."
2453 :group
'basic-faces
)
2456 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2457 ;;; Manipulating font names.
2458 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2460 ;; This is here for compatibility with Emacs 20.2. For example,
2461 ;; international/fontset.el uses x-resolve-font-name. The following
2462 ;; functions are not used in the face implementation itself.
2464 (defvar x-font-regexp nil
)
2465 (defvar x-font-regexp-head nil
)
2466 (defvar x-font-regexp-weight nil
)
2467 (defvar x-font-regexp-slant nil
)
2469 (defconst x-font-regexp-weight-subnum
1)
2470 (defconst x-font-regexp-slant-subnum
2)
2471 (defconst x-font-regexp-swidth-subnum
3)
2472 (defconst x-font-regexp-adstyle-subnum
4)
2474 ;;; Regexps matching font names in "Host Portable Character Representation."
2479 (weight "\\(bold\\|demibold\\|medium\\)") ; 1
2480 ; (weight\? "\\(\\*\\|bold\\|demibold\\|medium\\|\\)") ; 1
2481 (weight\? "\\([^-]*\\)") ; 1
2482 (slant "\\([ior]\\)") ; 2
2483 ; (slant\? "\\([ior?*]?\\)") ; 2
2484 (slant\? "\\([^-]?\\)") ; 2
2485 ; (swidth "\\(\\*\\|normal\\|semicondensed\\|\\)") ; 3
2486 (swidth "\\([^-]*\\)") ; 3
2487 ; (adstyle "\\(\\*\\|sans\\|\\)") ; 4
2488 (adstyle "\\([^-]*\\)") ; 4
2489 (pixelsize "[0-9]+")
2490 (pointsize "[0-9][0-9]+")
2491 (resx "[0-9][0-9]+")
2492 (resy "[0-9][0-9]+")
2499 (purecopy (concat "\\`\\*?[-?*]"
2500 foundry - family - weight
\? - slant
\? - swidth - adstyle -
2501 pixelsize - pointsize - resx - resy - spacing - avgwidth -
2502 registry - encoding
"\\*?\\'"
2504 (setq x-font-regexp-head
2505 (purecopy (concat "\\`[-?*]" foundry - family - weight
\? - slant
\?
2506 "\\([-*?]\\|\\'\\)")))
2507 (setq x-font-regexp-slant
(purecopy (concat - slant -
)))
2508 (setq x-font-regexp-weight
(purecopy (concat - weight -
)))
2512 (defun x-resolve-font-name (pattern &optional face frame
)
2513 "Return a font name matching PATTERN.
2514 All wildcards in PATTERN are instantiated.
2515 If PATTERN is nil, return the name of the frame's base font, which never
2517 Given optional arguments FACE and FRAME, return a font which is
2518 also the same size as FACE on FRAME, or fail."
2520 (setq face
(face-name face
)))
2524 ;; Note that x-list-fonts has code to handle a face with nil as its font.
2525 (let ((fonts (x-list-fonts pattern face frame
1)))
2528 (if (string-match "\\*" pattern
)
2529 (if (null (face-font face
))
2530 (error "No matching fonts are the same height as the frame default font")
2531 (error "No matching fonts are the same height as face `%s'" face
))
2532 (if (null (face-font face
))
2533 (error "Height of font `%s' doesn't match the frame default font"
2535 (error "Height of font `%s' doesn't match face `%s'"
2537 (error "No fonts match `%s'" pattern
)))
2539 (cdr (assq 'font
(frame-parameters (selected-frame))))))
2543 ;;; faces.el ends here