1;;; faces.el --- Lisp faces 2 3;; Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 4;; 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. 5 6;; Maintainer: FSF 7;; Keywords: internal 8 9;; This file is part of GNU Emacs. 10 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 2, or (at your option) 14;; any later version. 15 16;; GNU Emacs is distributed in the hope that it will be useful, 17;; but WITHOUT ANY WARRANTY; without even the implied warranty of 18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19;; GNU General Public License for more details. 20 21;; You should have received a copy of the GNU General Public License 22;; along with GNU Emacs; see the file COPYING. If not, write to the 23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 24;; Boston, MA 02110-1301, USA. 25 26;;; Commentary: 27 28;;; Code: 29 30(eval-when-compile 31 (require 'cl) 32 ;; Warning suppression -- can't require x-win in batch: 33 (autoload 'xw-defined-colors "x-win")) 34 35(defvar help-xref-stack-item) 36 37;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 38;;; Font selection. 39;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 40 41(defgroup font-selection nil 42 "Influencing face font selection." 43 :group 'faces) 44 45 46(defcustom face-font-selection-order 47 '(:width :height :weight :slant) 48 "*A list specifying how face font selection chooses fonts. 49Each of the four symbols `:width', `:height', `:weight', and `:slant' 50must appear once in the list, and the list must not contain any other 51elements. Font selection tries to find a best matching font for 52those face attributes first that appear first in the list. For 53example, if `:slant' appears before `:height', font selection first 54tries to find a font with a suitable slant, even if this results in 55a font height that isn't optimal." 56 :tag "Font selection order" 57 :type '(list symbol symbol symbol symbol) 58 :group 'font-selection 59 :set #'(lambda (symbol value) 60 (set-default symbol value) 61 (internal-set-font-selection-order value))) 62 63 64;; This is defined originally in xfaces.c. 65(defcustom face-font-family-alternatives 66 '(("courier" "fixed") 67 ("helv" "helvetica" "arial" "fixed")) 68 "*Alist of alternative font family names. 69Each element has the form (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...). 70If fonts of family FAMILY can't be loaded, try ALTERNATIVE1, then 71ALTERNATIVE2 etc." 72 :tag "Alternative font families to try" 73 :type '(repeat (repeat string)) 74 :group 'font-selection 75 :set #'(lambda (symbol value) 76 (set-default symbol value) 77 (internal-set-alternative-font-family-alist value))) 78 79 80;; This is defined originally in xfaces.c. 81(defcustom face-font-registry-alternatives 82 (if (eq system-type 'windows-nt) 83 '(("iso8859-1" "ms-oemlatin") 84 ("gb2312.1980" "gb2312") 85 ("jisx0208.1990" "jisx0208.1983" "jisx0208.1978") 86 ("ksc5601.1989" "ksx1001.1992" "ksc5601.1987") 87 ("muletibetan-2" "muletibetan-0")) 88 '(("gb2312.1980" "gb2312.80&gb8565.88" "gbk*") 89 ("jisx0208.1990" "jisx0208.1983" "jisx0208.1978") 90 ("ksc5601.1989" "ksx1001.1992" "ksc5601.1987") 91 ("muletibetan-2" "muletibetan-0"))) 92 "*Alist of alternative font registry names. 93Each element has the form (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...). 94If fonts of registry REGISTRY can be loaded, font selection 95tries to find a best matching font among all fonts of registry 96REGISTRY, ALTERNATIVE1, ALTERNATIVE2, and etc." 97 :tag "Alternative font registries to try" 98 :type '(repeat (repeat string)) 99 :version "21.1" 100 :group 'font-selection 101 :set #'(lambda (symbol value) 102 (set-default symbol value) 103 (internal-set-alternative-font-registry-alist value))) 104 105 106 107;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 108;;; Creation, copying. 109;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 110 111 112(defun face-list () 113 "Return a list of all defined face names." 114 (mapcar #'car face-new-frame-defaults)) 115 116 117;;; ### If not frame-local initialize by what X resources? 118 119(defun make-face (face &optional no-init-from-resources) 120 "Define a new face with name FACE, a symbol. 121NO-INIT-FROM-RESOURCES non-nil means don't initialize frame-local 122variants of FACE from X resources. (X resources recognized are found 123in the global variable `face-x-resources'.) If FACE is already known 124as a face, leave it unmodified. Value is FACE." 125 (interactive "SMake face: ") 126 (unless (facep face) 127 ;; Make frame-local faces (this also makes the global one). 128 (dolist (frame (frame-list)) 129 (internal-make-lisp-face face frame)) 130 ;; Add the face to the face menu. 131 (when (fboundp 'facemenu-add-new-face) 132 (facemenu-add-new-face face)) 133 ;; Define frame-local faces for all frames from X resources. 134 (unless no-init-from-resources 135 (make-face-x-resource-internal face))) 136 face) 137 138 139(defun make-empty-face (face) 140 "Define a new, empty face with name FACE. 141If the face already exists, it is left unmodified. Value is FACE." 142 (interactive "SMake empty face: ") 143 (make-face face 'no-init-from-resources)) 144 145 146(defun copy-face (old-face new-face &optional frame new-frame) 147 "Define a face just like OLD-FACE, with name NEW-FACE. 148 149If NEW-FACE already exists as a face, it is modified to be like 150OLD-FACE. If it doesn't already exist, it is created. 151 152If the optional argument FRAME is given as a frame, NEW-FACE is 153changed on FRAME only. 154If FRAME is t, the frame-independent default specification for OLD-FACE 155is copied to NEW-FACE. 156If FRAME is nil, copying is done for the frame-independent defaults 157and for each existing frame. 158 159If the optional fourth argument NEW-FRAME is given, 160copy the information from face OLD-FACE on frame FRAME 161to NEW-FACE on frame NEW-FRAME." 162 (let ((inhibit-quit t)) 163 (if (null frame) 164 (progn 165 (dolist (frame (frame-list)) 166 (copy-face old-face new-face frame)) 167 (copy-face old-face new-face t)) 168 (internal-copy-lisp-face old-face new-face frame new-frame)) 169 new-face)) 170 171 172 173;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 174;;; Obsolete functions 175;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 176 177;; The functions in this section are defined because Lisp packages use 178;; them, despite the prefix `internal-' suggesting that they are 179;; private to the face implementation. 180 181(defun internal-find-face (name &optional frame) 182 "Retrieve the face named NAME. 183Return nil if there is no such face. 184If NAME is already a face, it is simply returned. 185The optional argument FRAME is ignored." 186 (facep name)) 187(make-obsolete 'internal-find-face 'facep "21.1") 188 189 190(defun internal-get-face (name &optional frame) 191 "Retrieve the face named NAME; error if there is none. 192If NAME is already a face, it is simply returned. 193The optional argument FRAME is ignored." 194 (or (facep name) 195 (check-face name))) 196(make-obsolete 'internal-get-face "see `facep' and `check-face'." "21.1") 197 198 199;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 200;;; Predicates, type checks. 201;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 202 203(defun facep (face) 204 "Return non-nil if FACE is a face name or internal face object. 205Return nil otherwise. A face name can be a string or a symbol. 206An internal face object is a vector of the kind used internally 207to record face data." 208 (internal-lisp-face-p face)) 209 210 211(defun check-face (face) 212 "Signal an error if FACE doesn't name a face. 213Value is FACE." 214 (unless (facep face) 215 (error "Not a face: %s" face)) 216 face) 217 218 219;; The ID returned is not to be confused with the internally used IDs 220;; of realized faces. The ID assigned to Lisp faces is used to 221;; support faces in display table entries. 222 223(defun face-id (face &optional frame) 224 "Return the internal ID of face with name FACE. 225The optional argument FRAME is ignored, since the internal face ID 226of a face name is the same for all frames." 227 (check-face face) 228 (get face 'face)) 229 230 231(defun face-equal (face1 face2 &optional frame) 232 "Non-nil if faces FACE1 and FACE2 are equal. 233Faces are considered equal if all their attributes are equal. 234If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame. 235If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames). 236If FRAME is omitted or nil, use the selected frame." 237 (internal-lisp-face-equal-p face1 face2 frame)) 238 239 240(defun face-differs-from-default-p (face &optional frame) 241 "Return non-nil if FACE displays differently from the default face. 242If the optional argument FRAME is given, report on face FACE in that frame. 243If FRAME is t, report on the defaults for face FACE (for new frames). 244If FRAME is omitted or nil, use the selected frame." 245 (let ((attrs 246 '(:family :width :height :weight :slant :foreground 247 :background :underline :overline :strike-through 248 :box :inverse-video)) 249 (differs nil)) 250 (while (and attrs (not differs)) 251 (let* ((attr (pop attrs)) 252 (attr-val (face-attribute face attr frame t))) 253 (when (and 254 (not (eq attr-val 'unspecified)) 255 (display-supports-face-attributes-p (list attr attr-val) 256 frame)) 257 (setq differs attr)))) 258 differs)) 259 260 261(defun face-nontrivial-p (face &optional frame) 262 "True if face FACE has some non-nil attribute. 263If the optional argument FRAME is given, report on face FACE in that frame. 264If FRAME is t, report on the defaults for face FACE (for new frames). 265If FRAME is omitted or nil, use the selected frame." 266 (not (internal-lisp-face-empty-p face frame))) 267 268 269 270;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 271;;; Setting face attributes from X resources. 272;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 273 274(defcustom face-x-resources 275 '((:family (".attributeFamily" . "Face.AttributeFamily")) 276 (:width (".attributeWidth" . "Face.AttributeWidth")) 277 (:height (".attributeHeight" . "Face.AttributeHeight")) 278 (:weight (".attributeWeight" . "Face.AttributeWeight")) 279 (:slant (".attributeSlant" . "Face.AttributeSlant")) 280 (:foreground (".attributeForeground" . "Face.AttributeForeground")) 281 (:background (".attributeBackground" . "Face.AttributeBackground")) 282 (:overline (".attributeOverline" . "Face.AttributeOverline")) 283 (:strike-through (".attributeStrikeThrough" . "Face.AttributeStrikeThrough")) 284 (:box (".attributeBox" . "Face.AttributeBox")) 285 (:underline (".attributeUnderline" . "Face.AttributeUnderline")) 286 (:inverse-video (".attributeInverse" . "Face.AttributeInverse")) 287 (:stipple 288 (".attributeStipple" . "Face.AttributeStipple") 289 (".attributeBackgroundPixmap" . "Face.AttributeBackgroundPixmap")) 290 (:bold (".attributeBold" . "Face.AttributeBold")) 291 (:italic (".attributeItalic" . "Face.AttributeItalic")) 292 (:font (".attributeFont" . "Face.AttributeFont")) 293 (:inherit (".attributeInherit" . "Face.AttributeInherit"))) 294 "*List of X resources and classes for face attributes. 295Each element has the form (ATTRIBUTE ENTRY1 ENTRY2...) where ATTRIBUTE is 296the name of a face attribute, and each ENTRY is a cons of the form 297\(RESOURCE . CLASS) with RESOURCE being the resource and CLASS being the 298X resource class for the attribute." 299 :type '(repeat (cons symbol (repeat (cons string string)))) 300 :group 'faces) 301 302 303(defun set-face-attribute-from-resource (face attribute resource class frame) 304 "Set FACE's ATTRIBUTE from X resource RESOURCE, class CLASS on FRAME. 305Value is the attribute value specified by the resource, or nil 306if not present. This function displays a message if the resource 307specifies an invalid attribute." 308 (let* ((face-name (face-name face)) 309 (value (internal-face-x-get-resource (concat face-name resource) 310 class frame))) 311 (when value 312 (condition-case () 313 (internal-set-lisp-face-attribute-from-resource 314 face attribute (downcase value) frame) 315 (error 316 (message "Face %s, frame %s: invalid attribute %s %s from X resource" 317 face-name frame attribute value)))) 318 value)) 319 320 321(defun set-face-attributes-from-resources (face frame) 322 "Set attributes of FACE from X resources for FRAME." 323 (when (memq (framep frame) '(x w32 mac)) 324 (dolist (definition face-x-resources) 325 (let ((attribute (car definition))) 326 (dolist (entry (cdr definition)) 327 (set-face-attribute-from-resource face attribute (car entry) 328 (cdr entry) frame)))))) 329 330 331(defun make-face-x-resource-internal (face &optional frame) 332 "Fill frame-local FACE on FRAME from X resources. 333FRAME nil or not specified means do it for all frames." 334 (if (null frame) 335 (dolist (frame (frame-list)) 336 (set-face-attributes-from-resources face frame)) 337 (set-face-attributes-from-resources face frame))) 338 339 340 341;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 342;;; Retrieving face attributes. 343;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 344 345(defun face-name (face) 346 "Return the name of face FACE." 347 (symbol-name (check-face face))) 348 349 350(defun face-attribute (face attribute &optional frame inherit) 351 "Return the value of FACE's ATTRIBUTE on FRAME. 352If the optional argument FRAME is given, report on face FACE in that frame. 353If FRAME is t, report on the defaults for face FACE (for new frames). 354If FRAME is omitted or nil, use the selected frame. 355 356If INHERIT is nil, only attributes directly defined by FACE are considered, 357 so the return value may be `unspecified', or a relative value. 358If INHERIT is non-nil, FACE's definition of ATTRIBUTE is merged with the 359 faces specified by its `:inherit' attribute; however the return value 360 may still be `unspecified' or relative. 361If INHERIT is a face or a list of faces, then the result is further merged 362 with that face (or faces), until it becomes specified and absolute. 363 364To ensure that the return value is always specified and absolute, use a 365value of `default' for INHERIT; this will resolve any unspecified or 366relative values by merging with the `default' face (which is always 367completely specified)." 368 (let ((value (internal-get-lisp-face-attribute face attribute frame))) 369 (when (and inherit (face-attribute-relative-p attribute value)) 370 ;; VALUE is relative, so merge with inherited faces 371 (let ((inh-from (face-attribute face :inherit frame))) 372 (unless (or (null inh-from) (eq inh-from 'unspecified)) 373 (condition-case nil 374 (setq value 375 (face-attribute-merged-with attribute value inh-from frame)) 376 ;; The `inherit' attribute may point to non existent faces. 377 (error nil))))) 378 (when (and inherit 379 (not (eq inherit t)) 380 (face-attribute-relative-p attribute value)) 381 ;; We should merge with INHERIT as well 382 (setq value (face-attribute-merged-with attribute value inherit frame))) 383 value)) 384 385(defun face-attribute-merged-with (attribute value faces &optional frame) 386 "Merges ATTRIBUTE, initially VALUE, with faces from FACES until absolute. 387FACES may be either a single face or a list of faces. 388\[This is an internal function.]" 389 (cond ((not (face-attribute-relative-p attribute value)) 390 value) 391 ((null faces) 392 value) 393 ((consp faces) 394 (face-attribute-merged-with 395 attribute 396 (face-attribute-merged-with attribute value (car faces) frame) 397 (cdr faces) 398 frame)) 399 (t 400 (merge-face-attribute attribute 401 value 402 (face-attribute faces attribute frame t))))) 403 404 405(defmacro face-attribute-specified-or (value &rest body) 406 "Return VALUE, unless it's `unspecified', in which case evaluate BODY and return the result." 407 (let ((temp (make-symbol "value"))) 408 `(let ((,temp ,value)) 409 (if (not (eq ,temp 'unspecified)) 410 ,temp 411 ,@body)))) 412 413(defun face-foreground (face &optional frame inherit) 414 "Return the foreground color name of FACE, or nil if unspecified. 415If the optional argument FRAME is given, report on face FACE in that frame. 416If FRAME is t, report on the defaults for face FACE (for new frames). 417If FRAME is omitted or nil, use the selected frame. 418 419If INHERIT is nil, only a foreground color directly defined by FACE is 420 considered, so the return value may be nil. 421If INHERIT is t, and FACE doesn't define a foreground color, then any 422 foreground color that FACE inherits through its `:inherit' attribute 423 is considered as well; however the return value may still be nil. 424If INHERIT is a face or a list of faces, then it is used to try to 425 resolve an unspecified foreground color. 426 427To ensure that a valid color is always returned, use a value of 428`default' for INHERIT; this will resolve any unspecified values by 429merging with the `default' face (which is always completely specified)." 430 (face-attribute-specified-or (face-attribute face :foreground frame inherit) 431 nil)) 432 433(defun face-background (face &optional frame inherit) 434 "Return the background color name of FACE, or nil if unspecified. 435If the optional argument FRAME is given, report on face FACE in that frame. 436If FRAME is t, report on the defaults for face FACE (for new frames). 437If FRAME is omitted or nil, use the selected frame. 438 439If INHERIT is nil, only a background color directly defined by FACE is 440 considered, so the return value may be nil. 441If INHERIT is t, and FACE doesn't define a background color, then any 442 background color that FACE inherits through its `:inherit' attribute 443 is considered as well; however the return value may still be nil. 444If INHERIT is a face or a list of faces, then it is used to try to 445 resolve an unspecified background color. 446 447To ensure that a valid color is always returned, use a value of 448`default' for INHERIT; this will resolve any unspecified values by 449merging with the `default' face (which is always completely specified)." 450 (face-attribute-specified-or (face-attribute face :background frame inherit) 451 nil)) 452 453(defun face-stipple (face &optional frame inherit) 454 "Return the stipple pixmap name of FACE, or nil if unspecified. 455If the optional argument FRAME is given, report on face FACE in that frame. 456If FRAME is t, report on the defaults for face FACE (for new frames). 457If FRAME is omitted or nil, use the selected frame. 458 459If INHERIT is nil, only a stipple directly defined by FACE is 460 considered, so the return value may be nil. 461If INHERIT is t, and FACE doesn't define a stipple, then any stipple 462 that FACE inherits through its `:inherit' attribute is considered as 463 well; however the return value may still be nil. 464If INHERIT is a face or a list of faces, then it is used to try to 465 resolve an unspecified stipple. 466 467To ensure that a valid stipple or nil is always returned, use a value of 468`default' for INHERIT; this will resolve any unspecified values by merging 469with the `default' face (which is always completely specified)." 470 (face-attribute-specified-or (face-attribute face :stipple frame inherit) 471 nil)) 472 473 474(defalias 'face-background-pixmap 'face-stipple) 475 476 477(defun face-underline-p (face &optional frame) 478 "Return non-nil if FACE is underlined. 479If the optional argument FRAME is given, report on face FACE in that frame. 480If FRAME is t, report on the defaults for face FACE (for new frames). 481If FRAME is omitted or nil, use the selected frame." 482 (eq (face-attribute face :underline frame) t)) 483 484 485(defun face-inverse-video-p (face &optional frame) 486 "Return non-nil if FACE is in inverse video on FRAME. 487If the optional argument FRAME is given, report on face FACE in that frame. 488If FRAME is t, report on the defaults for face FACE (for new frames). 489If FRAME is omitted or nil, use the selected frame." 490 (eq (face-attribute face :inverse-video frame) t)) 491 492 493(defun face-bold-p (face &optional frame) 494 "Return non-nil if the font of FACE is bold on FRAME. 495If the optional argument FRAME is given, report on face FACE in that frame. 496If FRAME is t, report on the defaults for face FACE (for new frames). 497If FRAME is omitted or nil, use the selected frame. 498Use `face-attribute' for finer control." 499 (let ((bold (face-attribute face :weight frame))) 500 (memq bold '(semi-bold bold extra-bold ultra-bold)))) 501 502 503(defun face-italic-p (face &optional frame) 504 "Return non-nil if the font of FACE is italic on FRAME. 505If the optional argument FRAME is given, report on face FACE in that frame. 506If FRAME is t, report on the defaults for face FACE (for new frames). 507If FRAME is omitted or nil, use the selected frame. 508Use `face-attribute' for finer control." 509 (let ((italic (face-attribute face :slant frame))) 510 (memq italic '(italic oblique)))) 511 512 513 514;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 515;;; Face documentation. 516;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 517 518(defun face-documentation (face) 519 "Get the documentation string for FACE. 520If FACE is a face-alias, get the documentation for the target face." 521 (let ((alias (get face 'face-alias)) 522 doc) 523 (if alias 524 (progn 525 (setq doc (get alias 'face-documentation)) 526 (format "%s is an alias for the face `%s'.%s" face alias 527 (if doc (format "\n%s" doc) 528 ""))) 529 (get face 'face-documentation)))) 530 531 532(defun set-face-documentation (face string) 533 "Set the documentation string for FACE to STRING." 534 ;; Perhaps the text should go in DOC. 535 (put face 'face-documentation (purecopy string))) 536 537 538(defalias 'face-doc-string 'face-documentation) 539(defalias 'set-face-doc-string 'set-face-documentation) 540 541 542 543;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 544;; Setting face attributes. 545;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 546 547 548(defvar inhibit-face-set-after-frame-default nil 549 "If non-nil, that tells `face-set-after-frame-default' to do nothing.") 550 551(defun set-face-attribute (face frame &rest args) 552 "Set attributes of FACE on FRAME from ARGS. 553 554FRAME nil means change attributes on all frames. FRAME t means change 555the default for new frames (this is done automatically each time an 556attribute is changed on all frames). 557 558ARGS must come in pairs ATTRIBUTE VALUE. ATTRIBUTE must be a valid 559face attribute name. All attributes can be set to `unspecified'; 560this fact is not further mentioned below. 561 562The following attributes are recognized: 563 564`:family' 565 566VALUE must be a string specifying the font family, e.g. ``courier'', 567or a fontset alias name. If a font family is specified, wild-cards `*' 568and `?' are allowed. 569 570`:width' 571 572VALUE specifies the relative proportionate width of the font to use. 573It must be one of the symbols `ultra-condensed', `extra-condensed', 574`condensed', `semi-condensed', `normal', `semi-expanded', `expanded', 575`extra-expanded', or `ultra-expanded'. 576 577`:height' 578 579VALUE must be either an integer specifying the height of the font to use 580in 1/10 pt, a floating point number specifying the amount by which to 581scale any underlying face, or a function, which is called with the old 582height (from the underlying face), and should return the new height. 583 584`:weight' 585 586VALUE specifies the weight of the font to use. It must be one of the 587symbols `ultra-bold', `extra-bold', `bold', `semi-bold', `normal', 588`semi-light', `light', `extra-light', `ultra-light'. 589 590`:slant' 591 592VALUE specifies the slant of the font to use. It must be one of the 593symbols `italic', `oblique', `normal', `reverse-italic', or 594`reverse-oblique'. 595 596`:foreground', `:background' 597 598VALUE must be a color name, a string. 599 600`:underline' 601 602VALUE specifies whether characters in FACE should be underlined. If 603VALUE is t, underline with foreground color of the face. If VALUE is 604a string, underline with that color. If VALUE is nil, explicitly 605don't underline. 606 607`:overline' 608 609VALUE specifies whether characters in FACE should be overlined. If 610VALUE is t, overline with foreground color of the face. If VALUE is a 611string, overline with that color. If VALUE is nil, explicitly don't 612overline. 613 614`:strike-through' 615 616VALUE specifies whether characters in FACE should be drawn with a line 617striking through them. If VALUE is t, use the foreground color of the 618face. If VALUE is a string, strike-through with that color. If VALUE 619is nil, explicitly don't strike through. 620 621`:box' 622 623VALUE specifies whether characters in FACE should have a box drawn 624around them. If VALUE is nil, explicitly don't draw boxes. If 625VALUE is t, draw a box with lines of width 1 in the foreground color 626of the face. If VALUE is a string, the string must be a color name, 627and the box is drawn in that color with a line width of 1. Otherwise, 628VALUE must be a property list of the form `(:line-width WIDTH 629:color COLOR :style STYLE)'. If a keyword/value pair is missing from 630the property list, a default value will be used for the value, as 631specified below. WIDTH specifies the width of the lines to draw; it 632defaults to 1. If WIDTH is negative, the absolute value is the width 633of the lines, and draw top/bottom lines inside the characters area, 634not around it. COLOR is the name of the color to draw in, default is 635the foreground color of the face for simple boxes, and the background 636color of the face for 3D boxes. STYLE specifies whether a 3D box 637should be draw. If STYLE is `released-button', draw a box looking 638like a released 3D button. If STYLE is `pressed-button' draw a box 639that appears like a pressed button. If STYLE is nil, the default if 640the property list doesn't contain a style specification, draw a 2D 641box. 642 643`:inverse-video' 644 645VALUE specifies whether characters in FACE should be displayed in 646inverse video. VALUE must be one of t or nil. 647 648`:stipple' 649 650If VALUE is a string, it must be the name of a file of pixmap data. 651The directories listed in the `x-bitmap-file-path' variable are 652searched. Alternatively, VALUE may be a list of the form (WIDTH 653HEIGHT DATA) where WIDTH and HEIGHT are the size in pixels, and DATA 654is a string containing the raw bits of the bitmap. VALUE nil means 655explicitly don't use a stipple pattern. 656 657For convenience, attributes `:family', `:width', `:height', `:weight', 658and `:slant' may also be set in one step from an X font name: 659 660`:font' 661 662Set font-related face attributes from VALUE. VALUE must be a valid 663XLFD font name. If it is a font name pattern, the first matching font 664will be used. 665 666For compatibility with Emacs 20, keywords `:bold' and `:italic' can 667be used to specify that a bold or italic font should be used. VALUE 668must be t or nil in that case. A value of `unspecified' is not allowed. 669 670`:inherit' 671 672VALUE is the name of a face from which to inherit attributes, or a list 673of face names. Attributes from inherited faces are merged into the face 674like an underlying face would be, with higher priority than underlying faces." 675 (let ((where (if (null frame) 0 frame))) 676 (setq args (purecopy args)) 677 ;; If we set the new-frame defaults, this face is modified outside Custom. 678 (if (memq where '(0 t)) 679 (put (or (get face 'face-alias) face) 'face-modified t)) 680 (while args 681 ;; Don't recursively set the attributes from the frame's font param 682 ;; when we update the frame's font param fro the attributes. 683 (let ((inhibit-face-set-after-frame-default t)) 684 (internal-set-lisp-face-attribute face (car args) 685 (purecopy (cadr args)) 686 where)) 687 (setq args (cdr (cdr args)))))) 688 689 690(defun make-face-bold (face &optional frame noerror) 691 "Make the font of FACE be bold, if possible. 692FRAME nil or not specified means change face on all frames. 693Argument NOERROR is ignored and retained for compatibility. 694Use `set-face-attribute' for finer control of the font weight." 695 (interactive (list (read-face-name "Make which face bold"))) 696 (set-face-attribute face frame :weight 'bold)) 697 698 699(defun make-face-unbold (face &optional frame noerror) 700 "Make the font of FACE be non-bold, if possible. 701FRAME nil or not specified means change face on all frames. 702Argument NOERROR is ignored and retained for compatibility." 703 (interactive (list (read-face-name "Make which face non-bold"))) 704 (set-face-attribute face frame :weight 'normal)) 705 706 707(defun make-face-italic (face &optional frame noerror) 708 "Make the font of FACE be italic, if possible. 709FRAME nil or not specified means change face on all frames. 710Argument NOERROR is ignored and retained for compatibility. 711Use `set-face-attribute' for finer control of the font slant." 712 (interactive (list (read-face-name "Make which face italic"))) 713 (set-face-attribute face frame :slant 'italic)) 714 715 716(defun make-face-unitalic (face &optional frame noerror) 717 "Make the font of FACE be non-italic, if possible. 718FRAME nil or not specified means change face on all frames. 719Argument NOERROR is ignored and retained for compatibility." 720 (interactive (list (read-face-name "Make which face non-italic"))) 721 (set-face-attribute face frame :slant 'normal)) 722 723 724(defun make-face-bold-italic (face &optional frame noerror) 725 "Make the font of FACE be bold and italic, if possible. 726FRAME nil or not specified means change face on all frames. 727Argument NOERROR is ignored and retained for compatibility. 728Use `set-face-attribute' for finer control of font weight and slant." 729 (interactive (list (read-face-name "Make which face bold-italic"))) 730 (set-face-attribute face frame :weight 'bold :slant 'italic)) 731 732 733(defun set-face-font (face font &optional frame) 734 "Change font-related attributes of FACE to those of FONT (a string). 735FRAME nil or not specified means change face on all frames. 736This sets the attributes `:family', `:width', `:height', `:weight', 737and `:slant'. When called interactively, prompt for the face and font." 738 (interactive (read-face-and-attribute :font)) 739 (set-face-attribute face frame :font font)) 740 741 742;; Implementation note: Emulating gray background colors with a 743;; stipple pattern is now part of the face realization process, and is 744;; done in C depending on the frame on which the face is realized. 745 746(defun set-face-background (face color &optional frame) 747 "Change the background color of face FACE to COLOR (a string). 748FRAME nil or not specified means change face on all frames. 749COLOR can be a system-defined color name (see `list-colors-display') 750or a hex spec of the form #RRGGBB. 751When called interactively, prompts for the face and color." 752 (interactive (read-face-and-attribute :background)) 753 (set-face-attribute face frame :background (or color 'unspecified))) 754 755 756(defun set-face-foreground (face color &optional frame) 757 "Change the foreground color of face FACE to COLOR (a string). 758FRAME nil or not specified means change face on all frames. 759COLOR can be a system-defined color name (see `list-colors-display') 760or a hex spec of the form #RRGGBB. 761When called interactively, prompts for the face and color." 762 (interactive (read-face-and-attribute :foreground)) 763 (set-face-attribute face frame :foreground (or color 'unspecified))) 764 765 766(defun set-face-stipple (face stipple &optional frame) 767 "Change the stipple pixmap of face FACE to STIPPLE. 768FRAME nil or not specified means change face on all frames. 769STIPPLE should be a string, the name of a file of pixmap data. 770The directories listed in the `x-bitmap-file-path' variable are searched. 771 772Alternatively, STIPPLE may be a list of the form (WIDTH HEIGHT DATA) 773where WIDTH and HEIGHT are the size in pixels, 774and DATA is a string, containing the raw bits of the bitmap." 775 (interactive (read-face-and-attribute :stipple)) 776 (set-face-attribute face frame :stipple (or stipple 'unspecified))) 777 778 779(defun set-face-underline-p (face underline &optional frame) 780 "Specify whether face FACE is underlined. 781UNDERLINE nil means FACE explicitly doesn't underline. 782UNDERLINE non-nil means FACE explicitly does underlining 783with the same of the foreground color. 784If UNDERLINE is a string, underline with the color named UNDERLINE. 785FRAME nil or not specified means change face on all frames. 786Use `set-face-attribute' to ``unspecify'' underlining." 787 (interactive 788 (let ((list (read-face-and-attribute :underline))) 789 (list (car list) (eq (car (cdr list)) t)))) 790 (set-face-attribute face frame :underline underline)) 791 792(define-obsolete-function-alias 'set-face-underline 793 'set-face-underline-p "22.1") 794 795 796(defun set-face-inverse-video-p (face inverse-video-p &optional frame) 797 "Specify whether face FACE is in inverse video. 798INVERSE-VIDEO-P non-nil means FACE displays explicitly in inverse video. 799INVERSE-VIDEO-P nil means FACE explicitly is not in inverse video. 800FRAME nil or not specified means change face on all frames. 801Use `set-face-attribute' to ``unspecify'' the inverse video attribute." 802 (interactive 803 (let ((list (read-face-and-attribute :inverse-video))) 804 (list (car list) (eq (car (cdr list)) t)))) 805 (set-face-attribute face frame :inverse-video inverse-video-p)) 806 807 808(defun set-face-bold-p (face bold-p &optional frame) 809 "Specify whether face FACE is bold. 810BOLD-P non-nil means FACE should explicitly display bold. 811BOLD-P nil means FACE should explicitly display non-bold. 812FRAME nil or not specified means change face on all frames. 813Use `set-face-attribute' or `modify-face' for finer control." 814 (if (null bold-p) 815 (make-face-unbold face frame) 816 (make-face-bold face frame))) 817 818 819(defun set-face-italic-p (face italic-p &optional frame) 820 "Specify whether face FACE is italic. 821ITALIC-P non-nil means FACE should explicitly display italic. 822ITALIC-P nil means FACE should explicitly display non-italic. 823FRAME nil or not specified means change face on all frames. 824Use `set-face-attribute' or `modify-face' for finer control." 825 (if (null italic-p) 826 (make-face-unitalic face frame) 827 (make-face-italic face frame))) 828 829 830(defalias 'set-face-background-pixmap 'set-face-stipple) 831 832 833(defun invert-face (face &optional frame) 834 "Swap the foreground and background colors of FACE. 835If FRAME is omitted or nil, it means change face on all frames. 836If FACE specifies neither foreground nor background color, 837set its foreground and background to the background and foreground 838of the default face. Value is FACE." 839 (interactive (list (read-face-name "Invert face"))) 840 (let ((fg (face-attribute face :foreground frame)) 841 (bg (face-attribute face :background frame))) 842 (if (not (and (eq fg 'unspecified) (eq bg 'unspecified))) 843 (set-face-attribute face frame :foreground bg :background fg) 844 (set-face-attribute face frame 845 :foreground 846 (face-attribute 'default :background frame) 847 :background 848 (face-attribute 'default :foreground frame)))) 849 face) 850 851 852;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 853;;; Interactively modifying faces. 854;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 855 856(defun read-face-name (prompt &optional string-describing-default multiple) 857 "Read a face, defaulting to the face or faces on the char after point. 858If it has the property `read-face-name', that overrides the `face' property. 859PROMPT should be a string that describes what the caller will do with the face; 860it should not end in a space. 861STRING-DESCRIBING-DEFAULT should describe what default the caller will use if 862the user just types RET; you can omit it. 863If MULTIPLE is non-nil, return a list of faces (possibly only one). 864Otherwise, return a single face." 865 (let ((faceprop (or (get-char-property (point) 'read-face-name) 866 (get-char-property (point) 'face))) 867 (aliasfaces nil) 868 (nonaliasfaces nil) 869 faces) 870 ;; Try to get a face name from the buffer. 871 (if (memq (intern-soft (thing-at-point 'symbol)) (face-list)) 872 (setq faces (list (intern-soft (thing-at-point 'symbol))))) 873 ;; Add the named faces that the `face' property uses. 874 (if (and (listp faceprop) 875 ;; Don't treat an attribute spec as a list of faces. 876 (not (keywordp (car faceprop))) 877 (not (memq (car faceprop) '(foreground-color background-color)))) 878 (dolist (f faceprop) 879 (if (symbolp f) 880 (push f faces))) 881 (if (symbolp faceprop) 882 (push faceprop faces))) 883 (delete-dups faces) 884 885 ;; Build up the completion tables. 886 (mapatoms (lambda (s) 887 (if (custom-facep s) 888 (if (get s 'face-alias) 889 (push (symbol-name s) aliasfaces) 890 (push (symbol-name s) nonaliasfaces))))) 891 892 ;; If we only want one, and the default is more than one, 893 ;; discard the unwanted ones now. 894 (unless multiple 895 (if faces 896 (setq faces (list (car faces))))) 897 (require 'crm) 898 (let* ((input 899 ;; Read the input. 900 (completing-read-multiple 901 (if (or faces string-describing-default) 902 (format "%s (default %s): " prompt 903 (if faces (mapconcat 'symbol-name faces ",") 904 string-describing-default)) 905 (format "%s: " prompt)) 906 (complete-in-turn nonaliasfaces aliasfaces) 907 nil t nil nil 908 (if faces (mapconcat 'symbol-name faces ",")))) 909 ;; Canonicalize the output. 910 (output 911 (cond ((or (equal input "") (equal input '(""))) 912 faces) 913 ((stringp input) 914 (mapcar 'intern (split-string input ", *" t))) 915 ((listp input) 916 (mapcar 'intern input)) 917 (input)))) 918 ;; Return either a list of faces or just one face. 919 (if multiple 920 output 921 (car output))))) 922 923 924(defun face-valid-attribute-values (attribute &optional frame) 925 "Return valid values for face attribute ATTRIBUTE. 926The optional argument FRAME is used to determine available fonts 927and colors. If it is nil or not specified, the selected frame is 928used. Value is an alist of (NAME . VALUE) if ATTRIBUTE expects a value 929out of a set of discrete values. Value is `integerp' if ATTRIBUTE expects 930an integer value." 931 (let ((valid 932 (case attribute 933 (:family 934 (if window-system 935 (mapcar #'(lambda (x) (cons (car x) (car x))) 936 (x-font-family-list)) 937 ;; Only one font on TTYs. 938 (list (cons "default" "default")))) 939 ((:width :weight :slant :inverse-video) 940 (mapcar #'(lambda (x) (cons (symbol-name x) x)) 941 (internal-lisp-face-attribute-values attribute))) 942 ((:underline :overline :strike-through :box) 943 (if window-system 944 (nconc (mapcar #'(lambda (x) (cons (symbol-name x) x)) 945 (internal-lisp-face-attribute-values attribute)) 946 (mapcar #'(lambda (c) (cons c c)) 947 (defined-colors frame))) 948 (mapcar #'(lambda (x) (cons (symbol-name x) x)) 949 (internal-lisp-face-attribute-values attribute)))) 950 ((:foreground :background) 951 (mapcar #'(lambda (c) (cons c c)) 952 (defined-colors frame))) 953 ((:height) 954 'integerp) 955 (:stipple 956 (and (memq window-system '(x w32 mac)) 957 (mapcar #'list 958 (apply #'nconc 959 (mapcar (lambda (dir) 960 (and (file-readable-p dir) 961 (file-directory-p dir) 962 (directory-files dir))) 963 x-bitmap-file-path))))) 964 (:inherit 965 (cons '("none" . nil) 966 (mapcar #'(lambda (c) (cons (symbol-name c) c)) 967 (face-list)))) 968 (t 969 (error "Internal error"))))) 970 (if (and (listp valid) (not (memq attribute '(:inherit)))) 971 (nconc (list (cons "unspecified" 'unspecified)) valid) 972 valid))) 973 974 975(defvar face-attribute-name-alist 976 '((:family . "font family") 977 (:width . "character set width") 978 (:height . "height in 1/10 pt") 979 (:weight . "weight") 980 (:slant . "slant") 981 (:underline . "underline") 982 (:overline . "overline") 983 (:strike-through . "strike-through") 984 (:box . "box") 985 (:inverse-video . "inverse-video display") 986 (:foreground . "foreground color") 987 (:background . "background color") 988 (:stipple . "background stipple") 989 (:inherit . "inheritance")) 990 "An alist of descriptive names for face attributes. 991Each element has the form (ATTRIBUTE-NAME . DESCRIPTION) where 992ATTRIBUTE-NAME is a face attribute name (a keyword symbol), and 993DESCRIPTION is a descriptive name for ATTRIBUTE-NAME.") 994 995 996(defun face-descriptive-attribute-name (attribute) 997 "Return a descriptive name for ATTRIBUTE." 998 (cdr (assq attribute face-attribute-name-alist))) 999 1000 1001(defun face-read-string (face default name &optional completion-alist) 1002 "Interactively read a face attribute string value. 1003FACE is the face whose attribute is read. If non-nil, DEFAULT is the 1004default string to return if no new value is entered. NAME is a 1005descriptive name of the attribute for prompting. COMPLETION-ALIST is an 1006alist of valid values, if non-nil. 1007 1008Entering nothing accepts the default string DEFAULT. 1009Value is the new attribute value." 1010 ;; Capitalize NAME (we don't use `capitalize' because that capitalizes 1011 ;; each word in a string separately). 1012 (setq name (concat (upcase (substring name 0 1)) (substring name 1))) 1013 (let* ((completion-ignore-case t) 1014 (value (completing-read 1015 (if default 1016 (format "%s for face `%s' (default %s): " 1017 name face default) 1018 (format "%s for face `%s': " name face)) 1019 completion-alist nil nil nil nil default))) 1020 (if (equal value "") default value))) 1021 1022 1023(defun face-read-integer (face default name) 1024 "Interactively read an integer face attribute value. 1025FACE is the face whose attribute is read. DEFAULT is the default 1026value to return if no new value is entered. NAME is a descriptive 1027name of the attribute for prompting. Value is the new attribute value." 1028 (let ((new-value 1029 (face-read-string face 1030 (format "%s" default) 1031 name 1032 (list (cons "unspecified" 'unspecified))))) 1033 (cond ((equal new-value "unspecified") 1034 'unspecified) 1035 ((member new-value '("unspecified-fg" "unspecified-bg")) 1036 new-value) 1037 (t 1038 (string-to-number new-value))))) 1039 1040 1041(defun read-face-attribute (face attribute &optional frame) 1042 "Interactively read a new value for FACE's ATTRIBUTE. 1043Optional argument FRAME nil or unspecified means read an attribute value 1044of a global face. Value is the new attribute value." 1045 (let* ((old-value (face-attribute face attribute frame)) 1046 (attribute-name (face-descriptive-attribute-name attribute)) 1047 (valid (face-valid-attribute-values attribute frame)) 1048 new-value) 1049 ;; Represent complex attribute values as strings by printing them 1050 ;; out. Stipple can be a vector; (WIDTH HEIGHT DATA). Box can be 1051 ;; a list `(:width WIDTH :color COLOR)' or `(:width WIDTH :shadow 1052 ;; SHADOW)'. 1053 (when (and (or (eq attribute :stipple) 1054 (eq attribute :box)) 1055 (or (consp old-value) 1056 (vectorp old-value))) 1057 (setq old-value (prin1-to-string old-value))) 1058 (cond ((listp valid) 1059 (let ((default 1060 (or (car (rassoc old-value valid)) 1061 (format "%s" old-value)))) 1062 (setq new-value 1063 (face-read-string face default attribute-name valid)) 1064 (if (equal new-value default) 1065 ;; Nothing changed, so don't bother with all the stuff 1066 ;; below. In particular, this avoids a non-tty color 1067 ;; from being canonicalized for a tty when the user 1068 ;; just uses the default. 1069 (setq new-value old-value) 1070 ;; Terminal frames can support colors that don't appear 1071 ;; explicitly in VALID, using color approximation code 1072 ;; in tty-colors.el. 1073 (when (and (memq attribute '(:foreground :background)) 1074 (not (memq window-system '(x w32 mac))) 1075 (not (member new-value 1076 '("unspecified" 1077 "unspecified-fg" "unspecified-bg")))) 1078 (setq new-value (car (tty-color-desc new-value frame)))) 1079 (when (assoc new-value valid) 1080 (setq new-value (cdr (assoc new-value valid))))))) 1081 ((eq valid 'integerp) 1082 (setq new-value (face-read-integer face old-value attribute-name))) 1083 (t (error "Internal error"))) 1084 ;; Convert stipple and box value text we read back to a list or 1085 ;; vector if it looks like one. This makes the assumption that a 1086 ;; pixmap file name won't start with an open-paren. 1087 (when (and (or (eq attribute :stipple) 1088 (eq attribute :box)) 1089 (stringp new-value) 1090 (string-match "^[[(]" new-value)) 1091 (setq new-value (read new-value))) 1092 new-value)) 1093 1094 1095(defun read-face-font (face &optional frame) 1096 "Read the name of a font for FACE on FRAME. 1097If optional argument FRAME is nil or omitted, use the selected frame." 1098 (let ((completion-ignore-case t)) 1099 (completing-read (format "Set font attributes of face `%s' from font: " face) 1100 (x-list-fonts "*" nil frame)))) 1101 1102 1103(defun read-all-face-attributes (face &optional frame) 1104 "Interactively read all attributes for FACE. 1105If optional argument FRAME is nil or omitted, use the selected frame. 1106Value is a property list of attribute names and new values." 1107 (let (result) 1108 (dolist (attribute face-attribute-name-alist result) 1109 (setq result (cons (car attribute) 1110 (cons (read-face-attribute face (car attribute) frame) 1111 result)))))) 1112 1113(defun modify-face (&optional face foreground background stipple 1114 bold-p italic-p underline inverse-p frame) 1115 "Modify attributes of faces interactively. 1116If optional argument FRAME is nil or omitted, modify the face used 1117for newly created frame, i.e. the global face. 1118For non-interactive use, `set-face-attribute' is preferred. 1119When called from Lisp, if FACE is nil, all arguments but FRAME are ignored 1120and the face and its settings are obtained by querying the user." 1121 (interactive) 1122 (if face 1123 (set-face-attribute face frame 1124 :foreground (or foreground 'unspecified) 1125 :background (or background 'unspecified) 1126 :stipple stipple 1127 :bold bold-p 1128 :italic italic-p 1129 :underline underline 1130 :inverse-video inverse-p) 1131 (setq face (read-face-name "Modify face")) 1132 (apply #'set-face-attribute face frame 1133 (read-all-face-attributes face frame)))) 1134 1135(defun read-face-and-attribute (attribute &optional frame) 1136 "Read face name and face attribute value. 1137ATTRIBUTE is the attribute whose new value is read. 1138FRAME nil or unspecified means read attribute value of global face. 1139Value is a list (FACE NEW-VALUE) where FACE is the face read 1140\(a symbol), and NEW-VALUE is value read." 1141 (cond ((eq attribute :font) 1142 (let* ((prompt "Set font-related attributes of face") 1143 (face (read-face-name prompt)) 1144 (font (read-face-font face frame))) 1145 (list face font))) 1146 (t 1147 (let* ((attribute-name (face-descriptive-attribute-name attribute)) 1148 (prompt (format "Set %s of face" attribute-name)) 1149 (face (read-face-name prompt)) 1150 (new-value (read-face-attribute face attribute frame))) 1151 (list face new-value))))) 1152 1153 1154 1155;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1156;;; Listing faces. 1157;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1158 1159(defvar list-faces-sample-text 1160 "abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ" 1161 "*Text string to display as the sample text for `list-faces-display'.") 1162 1163 1164;; The name list-faces would be more consistent, but let's avoid a 1165;; conflict with Lucid, which uses that name differently. 1166 1167(defvar help-xref-stack) 1168(defun list-faces-display (&optional regexp) 1169 "List all faces, using the same sample text in each. 1170The sample text is a string that comes from the variable 1171`list-faces-sample-text'. 1172 1173If REGEXP is non-nil, list only those faces with names matching 1174this regular expression. When called interactively with a prefix 1175arg, prompt for a regular expression." 1176 (interactive (list (and current-prefix-arg 1177 (read-string "List faces matching regexp: ")))) 1178 (let ((all-faces (zerop (length regexp))) 1179 (frame (selected-frame)) 1180 (max-length 0) 1181 faces line-format 1182 disp-frame window face-name) 1183 ;; We filter and take the max length in one pass 1184 (setq faces 1185 (delq nil 1186 (mapcar (lambda (f) 1187 (let ((s (symbol-name f))) 1188 (when (or all-faces (string-match regexp s)) 1189 (setq max-length (max (length s) max-length)) 1190 f))) 1191 (sort (face-list) #'string-lessp)))) 1192 (unless faces 1193 (error "No faces matching \"%s\"" regexp)) 1194 (setq max-length (1+ max-length) 1195 line-format (format "%%-%ds" max-length)) 1196 (with-output-to-temp-buffer "*Faces*" 1197 (save-excursion 1198 (set-buffer standard-output) 1199 (setq truncate-lines t) 1200 (insert 1201 (substitute-command-keys 1202 (concat 1203 "Use " 1204 (if (display-mouse-p) "\\[help-follow-mouse] or ") 1205 "\\[help-follow] on a face name to customize it\n" 1206 "or on its sample text for a description of the face.\n\n"))) 1207 (setq help-xref-stack nil) 1208 (dolist (face faces) 1209 (setq face-name (symbol-name face)) 1210 (insert (format line-format face-name)) 1211 ;; Hyperlink to a customization buffer for the face. Using 1212 ;; the help xref mechanism may not be the best way. 1213 (save-excursion 1214 (save-match-data 1215 (search-backward face-name) 1216 (setq help-xref-stack-item `(list-faces-display ,regexp)) 1217 (help-xref-button 0 'help-customize-face face))) 1218 (let ((beg (point)) 1219 (line-beg (line-beginning-position))) 1220 (insert list-faces-sample-text) 1221 ;; Hyperlink to a help buffer for the face. 1222 (save-excursion 1223 (save-match-data 1224 (search-backward list-faces-sample-text) 1225 (help-xref-button 0 'help-face face))) 1226 (insert "\n") 1227 (put-text-property beg (1- (point)) 'face face) 1228 ;; Make all face commands default to the proper face 1229 ;; anywhere in the line. 1230 (put-text-property line-beg (1- (point)) 'read-face-name face) 1231 ;; If the sample text has multiple lines, line up all of them. 1232 (goto-char beg) 1233 (forward-line 1) 1234 (while (not (eobp)) 1235 (insert-char ?\s max-length) 1236 (forward-line 1)))) 1237 (goto-char (point-min))) 1238 (print-help-return-message)) 1239 ;; If the *Faces* buffer appears in a different frame, 1240 ;; copy all the face definitions from FRAME, 1241 ;; so that the display will reflect the frame that was selected. 1242 (setq window (get-buffer-window (get-buffer "*Faces*") t)) 1243 (setq disp-frame (if window (window-frame window) 1244 (car (frame-list)))) 1245 (or (eq frame disp-frame) 1246 (let ((faces (face-list))) 1247 (while faces 1248 (copy-face (car faces) (car faces) frame disp-frame) 1249 (setq faces (cdr faces))))))) 1250 1251 1252(defun describe-face (face &optional frame) 1253 "Display the properties of face FACE on FRAME. 1254Interactively, FACE defaults to the faces of the character after point 1255and FRAME defaults to the selected frame. 1256 1257If the optional argument FRAME is given, report on face FACE in that frame. 1258If FRAME is t, report on the defaults for face FACE (for new frames). 1259If FRAME is omitted or nil, use the selected frame." 1260 (interactive (list (read-face-name "Describe face" "= `default' face" t))) 1261 (let* ((attrs '((:family . "Family") 1262 (:width . "Width") 1263 (:height . "Height") 1264 (:weight . "Weight") 1265 (:slant . "Slant") 1266 (:foreground . "Foreground") 1267 (:background . "Background") 1268 (:underline . "Underline") 1269 (:overline . "Overline") 1270 (:strike-through . "Strike-through") 1271 (:box . "Box") 1272 (:inverse-video . "Inverse") 1273 (:stipple . "Stipple") 1274 (:font . "Font or fontset") 1275 (:inherit . "Inherit"))) 1276 (max-width (apply #'max (mapcar #'(lambda (x) (length (cdr x))) 1277 attrs)))) 1278 (help-setup-xref (list #'describe-face face) (interactive-p)) 1279 (unless face 1280 (setq face 'default)) 1281 (if (not (listp face)) 1282 (setq face (list face))) 1283 (with-output-to-temp-buffer (help-buffer) 1284 (save-excursion 1285 (set-buffer standard-output) 1286 (dolist (f face) 1287 (insert "Face: " (symbol-name f)) 1288 (if (not (facep f)) 1289 (insert " undefined face.\n") 1290 (let ((customize-label "customize this face") 1291 file-name) 1292 (insert (concat " (" (propertize "sample" 'font-lock-face f) ")")) 1293 (princ (concat " (" customize-label ")\n")) 1294 (insert "Documentation: " 1295 (or (face-documentation f) 1296 "Not documented as a face.") 1297 "\n") 1298 (with-current-buffer standard-output 1299 (save-excursion 1300 (re-search-backward 1301 (concat "\\(" customize-label "\\)") nil t) 1302 (help-xref-button 1 'help-customize-face f))) 1303 ;; The next 4 sexps are copied from describe-function-1 1304 ;; and simplified. 1305 (setq file-name (symbol-file f 'defface)) 1306 (setq file-name (describe-simplify-lib-file-name file-name)) 1307 (when file-name 1308 (princ "Defined in `") 1309 (princ file-name) 1310 (princ "'") 1311 ;; Make a hyperlink to the library. 1312 (save-excursion 1313 (re-search-backward "`\\([^`']+\\)'" nil t) 1314 (help-xref-button 1 'help-face-def f file-name)) 1315 (princ ".") 1316 (terpri) 1317 (terpri)) 1318 (dolist (a attrs) 1319 (let ((attr (face-attribute f (car a) frame))) 1320 (insert (make-string (- max-width (length (cdr a))) ?\s) 1321 (cdr a) ": " (format "%s" attr)) 1322 (if (and (eq (car a) :inherit) 1323 (not (eq attr 'unspecified))) 1324 ;; Make a hyperlink to the parent face. 1325 (save-excursion 1326 (re-search-backward ": \\([^:]+\\)" nil t) 1327 (help-xref-button 1 'help-face attr))) 1328 (insert "\n"))))) 1329 (terpri))) 1330 (print-help-return-message)))) 1331 1332 1333;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1334;;; Face specifications (defface). 1335;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1336 1337;; Parameter FRAME Is kept for call compatibility to with previous 1338;; face implementation. 1339 1340(defun face-attr-construct (face &optional frame) 1341 "Return a `defface'-style attribute list for FACE on FRAME. 1342Value is a property list of pairs ATTRIBUTE VALUE for all specified 1343face attributes of FACE where ATTRIBUTE is the attribute name and 1344VALUE is the specified value of that attribute." 1345 (let (result) 1346 (dolist (entry face-attribute-name-alist result) 1347 (let* ((attribute (car entry)) 1348 (value (face-attribute face attribute))) 1349 (unless (eq value 'unspecified) 1350 (setq result (nconc (list attribute value) result))))))) 1351 1352 1353(defun face-spec-set-match-display (display frame) 1354 "Non-nil if DISPLAY matches FRAME. 1355DISPLAY is part of a spec such as can be used in `defface'. 1356If FRAME is nil, the current FRAME is used." 1357 (let* ((conjuncts display) 1358 conjunct req options 1359 ;; t means we have succeeded against all the conjuncts in 1360 ;; DISPLAY that have been tested so far. 1361 (match t)) 1362 (if (eq conjuncts t) 1363 (setq conjuncts nil)) 1364 (while (and conjuncts match) 1365 (setq conjunct (car conjuncts) 1366 conjuncts (cdr conjuncts) 1367 req (car conjunct) 1368 options (cdr conjunct) 1369 match (cond ((eq req 'type) 1370 (or (memq window-system options) 1371 ;; FIXME: This should be revisited to use 1372 ;; display-graphic-p, provided that the 1373 ;; color selection depends on the number 1374 ;; of supported colors, and all defface's 1375 ;; are changed to look at number of colors 1376 ;; instead of (type graphic) etc. 1377 (and (null window-system) 1378 (memq 'tty options)) 1379 (and (memq 'motif options) 1380 (featurep 'motif)) 1381 (and (memq 'gtk options) 1382 (featurep 'gtk)) 1383 (and (memq 'lucid options) 1384 (featurep 'x-toolkit) 1385 (not (featurep 'motif)) 1386 (not (featurep 'gtk))) 1387 (and (memq 'x-toolkit options) 1388 (featurep 'x-toolkit)))) 1389 ((eq req 'min-colors) 1390 (>= (display-color-cells frame) (car options))) 1391 ((eq req 'class) 1392 (memq (frame-parameter frame 'display-type) options)) 1393 ((eq req 'background) 1394 (memq (frame-parameter frame 'background-mode) 1395 options)) 1396 ((eq req 'supports) 1397 (display-supports-face-attributes-p options frame)) 1398 (t (error "Unknown req `%S' with options `%S'" 1399 req options))))) 1400 match)) 1401 1402 1403(defun face-spec-choose (spec &optional frame) 1404 "Choose the proper attributes for FRAME, out of SPEC. 1405If SPEC is nil, return nil." 1406 (unless frame 1407 (setq frame (selected-frame))) 1408 (let ((tail spec) 1409 result defaults) 1410 (while tail 1411 (let* ((entry (pop tail)) 1412 (display (car entry)) 1413 (attrs (cdr entry)) 1414 thisval) 1415 ;; Get the attributes as actually specified by this alternative. 1416 (setq thisval 1417 (if (null (cdr attrs)) ;; was (listp (car attrs)) 1418 ;; Old-style entry, the attribute list is the 1419 ;; first element. 1420 (car attrs) 1421 attrs)) 1422 1423 ;; If the condition is `default', that sets the default 1424 ;; for following conditions. 1425 (if (eq display 'default) 1426 (setq defaults thisval) 1427 ;; Otherwise, if it matches, use it. 1428 (when (face-spec-set-match-display display frame) 1429 (setq result thisval) 1430 (setq tail nil))))) 1431 (if defaults (append result defaults) result))) 1432 1433 1434(defun face-spec-reset-face (face &optional frame) 1435 "Reset all attributes of FACE on FRAME to unspecified." 1436 (let ((attrs face-attribute-name-alist)) 1437 (while attrs 1438 (let ((attr-and-name (car attrs))) 1439 (set-face-attribute face frame (car attr-and-name) 'unspecified)) 1440 (setq attrs (cdr attrs))))) 1441 1442 1443(defun face-spec-set (face spec &optional frame) 1444 "Set FACE's attributes according to the first matching entry in SPEC. 1445FRAME is the frame whose frame-local face is set. FRAME nil means 1446do it on all frames. See `defface' for information about SPEC. 1447If SPEC is nil, do nothing." 1448 (let ((attrs (face-spec-choose spec frame))) 1449 (when spec 1450 (face-spec-reset-face face frame)) 1451 (while attrs 1452 (let ((attribute (car attrs)) 1453 (value (car (cdr attrs)))) 1454 ;; Support some old-style attribute names and values. 1455 (case attribute 1456 (:bold (setq attribute :weight value (if value 'bold 'normal))) 1457 (:italic (setq attribute :slant value (if value 'italic 'normal))) 1458 ((:foreground :background) 1459 ;; Compatibility with 20.x. Some bogus face specs seem to 1460 ;; exist containing things like `:foreground nil'. 1461 (if (null value) (setq value 'unspecified))) 1462 (t (unless (assq attribute face-x-resources) 1463 (setq attribute nil)))) 1464 (when attribute 1465 (set-face-attribute face frame attribute value))) 1466 (setq attrs (cdr (cdr attrs))))) 1467 ;; When we reset the face based on its spec, then it is unmodified 1468 ;; as far as Custom is concerned. 1469 (if (null frame) 1470 (put (or (get face 'face-alias) face) 'face-modified nil))) 1471 1472 1473(defun face-attr-match-p (face attrs &optional frame) 1474 "Return t if attributes of FACE match values in plist ATTRS. 1475Optional parameter FRAME is the frame whose definition of FACE 1476is used. If nil or omitted, use the selected frame." 1477 (unless frame 1478 (setq frame (selected-frame))) 1479 (let ((list face-attribute-name-alist) 1480 (match t)) 1481 (while (and match (not (null list))) 1482 (let* ((attr (car (car list))) 1483 (specified-value 1484 (if (plist-member attrs attr) 1485 (plist-get attrs attr) 1486 'unspecified)) 1487 (value-now (face-attribute face attr frame))) 1488 (setq match (equal specified-value value-now)) 1489 (setq list (cdr list)))) 1490 match)) 1491 1492(defun face-spec-match-p (face spec &optional frame) 1493 "Return t if FACE, on FRAME, matches what SPEC says it should look like." 1494 (face-attr-match-p face (face-spec-choose spec frame) frame)) 1495 1496(defsubst face-default-spec (face) 1497 "Return the default face-spec for FACE, ignoring any user customization. 1498If there is no default for FACE, return nil." 1499 (get face 'face-defface-spec)) 1500 1501(defsubst face-user-default-spec (face) 1502 "Return the user's customized face-spec for FACE, or the default if none. 1503If there is neither a user setting nor a default for FACE, return nil." 1504 (or (get face 'customized-face) 1505 (get face 'saved-face) 1506 (face-default-spec face))) 1507 1508 1509;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1510;;; Frame-type independent color support. 1511;;; We keep the old x-* names as aliases for back-compatibility. 1512;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1513 1514(defun defined-colors (&optional frame) 1515 "Return a list of colors supported for a particular frame. 1516The argument FRAME specifies which frame to try. 1517The value may be different for frames on different display types. 1518If FRAME doesn't support colors, the value is nil. 1519If FRAME is nil, that stands for the selected frame." 1520 (if (memq (framep (or frame (selected-frame))) '(x w32 mac)) 1521 (xw-defined-colors frame) 1522 (mapcar 'car (tty-color-alist frame)))) 1523(defalias 'x-defined-colors 'defined-colors) 1524 1525(defun color-defined-p (color &optional frame) 1526 "Return non-nil if color COLOR is supported on frame FRAME. 1527If FRAME is omitted or nil, use the selected frame. 1528If COLOR is the symbol `unspecified' or one of the strings 1529\"unspecified-fg\" or \"unspecified-bg\", the value is nil." 1530 (if (member color '(unspecified "unspecified-bg" "unspecified-fg")) 1531 nil 1532 (if (member (framep (or frame (selected-frame))) '(x w32 mac)) 1533 (xw-color-defined-p color frame) 1534 (numberp (tty-color-translate color frame))))) 1535(defalias 'x-color-defined-p 'color-defined-p) 1536 1537(defun color-values (color &optional frame) 1538 "Return a description of the color named COLOR on frame FRAME. 1539The value is a list of integer RGB values--(RED GREEN BLUE). 1540These values appear to range from 0 to 65280 or 65535, depending 1541on the system; white is \(65280 65280 65280\) or \(65535 65535 65535\). 1542If FRAME is omitted or nil, use the selected frame. 1543If FRAME cannot display COLOR, the value is nil. 1544If COLOR is the symbol `unspecified' or one of the strings 1545\"unspecified-fg\" or \"unspecified-bg\", the value is nil." 1546 (if (member color '(unspecified "unspecified-fg" "unspecified-bg")) 1547 nil 1548 (if (memq (framep (or frame (selected-frame))) '(x w32 mac)) 1549 (xw-color-values color frame) 1550 (tty-color-values color frame)))) 1551(defalias 'x-color-values 'color-values) 1552 1553(defun display-color-p (&optional display) 1554 "Return t if DISPLAY supports color. 1555The optional argument DISPLAY specifies which display to ask about. 1556DISPLAY should be either a frame or a display name (a string). 1557If omitted or nil, that stands for the selected frame's display." 1558 (if (memq (framep-on-display display) '(x w32 mac)) 1559 (xw-display-color-p display) 1560 (tty-display-color-p display))) 1561(defalias 'x-display-color-p 'display-color-p) 1562 1563(defun display-grayscale-p (&optional display) 1564 "Return non-nil if frames on DISPLAY can display shades of gray." 1565 (let ((frame-type (framep-on-display display))) 1566 (cond 1567 ((memq frame-type '(x w32 mac)) 1568 (x-display-grayscale-p display)) 1569 (t 1570 (> (tty-color-gray-shades display) 2))))) 1571 1572 1573;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1574;;; Background mode. 1575;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1576 1577(defcustom frame-background-mode nil 1578 "*The brightness of the background. 1579Set this to the symbol `dark' if your background color is dark, 1580`light' if your background is light, or nil (automatic by default) 1581if you want Emacs to examine the brightness for you. Don't set this 1582variable with `setq'; this won't have the expected effect." 1583 :group 'faces 1584 :set #'(lambda (var value) 1585 (set-default var value) 1586 (mapc 'frame-set-background-mode (frame-list))) 1587 :initialize 'custom-initialize-changed 1588 :type '(choice (const dark) 1589 (const light) 1590 (const :tag "automatic" nil))) 1591 1592(defvar default-frame-background-mode nil 1593 "Internal variable for the default brightness of the background. 1594Emacs sets it automatically depending on the terminal type. 1595The value `nil' means `dark'. If Emacs runs in non-windowed 1596mode from `xterm' or a similar terminal emulator, the value is 1597`light'. On rxvt terminals, the value depends on the environment 1598variable COLORFGBG.") 1599 1600(defun frame-set-background-mode (frame) 1601 "Set up display-dependent faces on FRAME. 1602Display-dependent faces are those which have different definitions 1603according to the `background-mode' and `display-type' frame parameters." 1604 (let* ((bg-resource 1605 (and window-system 1606 (x-get-resource "backgroundMode" "BackgroundMode"))) 1607 (bg-color (frame-parameter frame 'background-color)) 1608 (bg-mode 1609 (cond (frame-background-mode) 1610 (bg-resource 1611 (intern (downcase bg-resource))) 1612 ((and (null window-system) (null bg-color)) 1613 ;; No way to determine this automatically (?). 1614 (or default-frame-background-mode 'dark)) 1615 ;; Unspecified frame background color can only happen 1616 ;; on tty's. 1617 ((member bg-color '(unspecified "unspecified-bg")) 1618 (or default-frame-background-mode 'dark)) 1619 ((equal bg-color "unspecified-fg") ; inverted colors 1620 (if (eq default-frame-background-mode 'light) 'dark 'light)) 1621 ((>= (apply '+ (color-values bg-color frame)) 1622 ;; Just looking at the screen, colors whose 1623 ;; values add up to .6 of the white total 1624 ;; still look dark to me. 1625 (* (apply '+ (color-values "white" frame)) .6)) 1626 'light) 1627 (t 'dark))) 1628 (display-type 1629 (cond ((null window-system) 1630 (if (tty-display-color-p frame) 'color 'mono)) 1631 ((display-color-p frame) 1632 'color) 1633 ((x-display-grayscale-p frame) 1634 'grayscale) 1635 (t 'mono))) 1636 (old-bg-mode 1637 (frame-parameter frame 'background-mode)) 1638 (old-display-type 1639 (frame-parameter frame 'display-type))) 1640 1641 (unless (and (eq bg-mode old-bg-mode) (eq display-type old-display-type)) 1642 (let ((locally-modified-faces nil)) 1643 ;; Before modifying the frame parameters, we collect a list of 1644 ;; faces that don't match what their face-spec says they should 1645 ;; look like; we then avoid changing these faces below. A 1646 ;; negative list is used on the assumption that most faces will 1647 ;; be unmodified, so we can avoid consing in the common case. 1648 (dolist (face (face-list)) 1649 (when (not (face-spec-match-p face 1650 (face-user-default-spec face) 1651 (selected-frame))) 1652 (push face locally-modified-faces))) 1653 ;; Now change to the new frame parameters 1654 (modify-frame-parameters frame 1655 (list (cons 'background-mode bg-mode) 1656 (cons 'display-type display-type))) 1657 ;; For all named faces, choose face specs matching the new frame 1658 ;; parameters, unless they have been locally modified. 1659 (dolist (face (face-list)) 1660 (unless (memq face locally-modified-faces) 1661 (face-spec-set face (face-user-default-spec face) frame))))))) 1662 1663 1664;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1665;;; Frame creation. 1666;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1667 1668(defun x-handle-named-frame-geometry (parameters) 1669 "Add geometry parameters for a named frame to parameter list PARAMETERS. 1670Value is the new parameter list." 1671 (let* ((name (or (cdr (assq 'name parameters)) 1672 (cdr (assq 'name default-frame-alist)))) 1673 (x-resource-name name) 1674 (res-geometry (if name (x-get-resource "geometry" "Geometry")))) 1675 (when res-geometry 1676 (let ((parsed (x-parse-geometry res-geometry))) 1677 ;; If the resource specifies a position, call the position 1678 ;; and size "user-specified". 1679 (when (or (assq 'top parsed) 1680 (assq 'left parsed)) 1681 (setq parsed (append '((user-position . t) (user-size . t)) parsed))) 1682 ;; Put the geometry parameters at the end. Copy 1683 ;; default-frame-alist so that they go after it. 1684 (setq parameters (append parameters default-frame-alist parsed)))) 1685 parameters)) 1686 1687 1688(defun x-handle-reverse-video (frame parameters) 1689 "Handle the reverse-video frame parameter and X resource. 1690`x-create-frame' does not handle this one." 1691 (when (cdr (or (assq 'reverse parameters) 1692 (assq 'reverse default-frame-alist) 1693 (let ((resource (x-get-resource "reverseVideo" 1694 "ReverseVideo"))) 1695 (if resource 1696 (cons nil (member (downcase resource) 1697 '("on" "true"))))))) 1698 (let* ((params (frame-parameters frame)) 1699 (bg (cdr (assq 'foreground-color params))) 1700 (fg (cdr (assq 'background-color params)))) 1701 (modify-frame-parameters frame 1702 (list (cons 'foreground-color fg) 1703 (cons 'background-color bg))) 1704 (if (equal bg (cdr (assq 'border-color params))) 1705 (modify-frame-parameters frame 1706 (list (cons 'border-color fg)))) 1707 (if (equal bg (cdr (assq 'mouse-color params))) 1708 (modify-frame-parameters frame 1709 (list (cons 'mouse-color fg)))) 1710 (if (equal bg (cdr (assq 'cursor-color params))) 1711 (modify-frame-parameters frame 1712 (list (cons 'cursor-color fg))))))) 1713 1714 1715(defun x-create-frame-with-faces (&optional parameters) 1716 "Create a frame from optional frame parameters PARAMETERS. 1717Parameters not specified by PARAMETERS are taken from 1718`default-frame-alist'. If PARAMETERS specify a frame name, 1719handle X geometry resources for that name. If either PARAMETERS 1720or `default-frame-alist' contains a `reverse' parameter, or 1721the X resource ``reverseVideo'' is present, handle that. 1722Value is the new frame created." 1723 (setq parameters (x-handle-named-frame-geometry parameters)) 1724 (let ((visibility-spec (assq 'visibility parameters)) 1725 (frame-list (frame-list)) 1726 (frame (x-create-frame (cons '(visibility . nil) parameters))) 1727 success) 1728 (unwind-protect 1729 (progn 1730 (x-handle-reverse-video frame parameters) 1731 (frame-set-background-mode frame) 1732 (face-set-after-frame-default frame) 1733 (if (or (null frame-list) (null visibility-spec)) 1734 (make-frame-visible frame) 1735 (modify-frame-parameters frame (list visibility-spec))) 1736 (setq success t)) 1737 (unless success 1738 (delete-frame frame))) 1739 frame)) 1740 1741(defun face-set-after-frame-default (frame) 1742 "Set frame-local faces of FRAME from face specs and resources. 1743Initialize colors of certain faces from frame parameters." 1744 (unless inhibit-face-set-after-frame-default 1745 (if (face-attribute 'default :font t) 1746 (set-face-attribute 'default frame :font 1747 (face-attribute 'default :font t)) 1748 (set-face-attribute 'default frame :family 1749 (face-attribute 'default :family t)) 1750 (set-face-attribute 'default frame :height 1751 (face-attribute 'default :height t)) 1752 (set-face-attribute 'default frame :slant 1753 (face-attribute 'default :slant t)) 1754 (set-face-attribute 'default frame :weight 1755 (face-attribute 'default :weight t)) 1756 (set-face-attribute 'default frame :width 1757 (face-attribute 'default :width t)))) 1758 ;; Find attributes that should be initialized from frame parameters. 1759 (let ((face-params '((foreground-color default :foreground) 1760 (background-color default :background) 1761 (border-color border :background) 1762 (cursor-color cursor :background) 1763 (scroll-bar-foreground scroll-bar :foreground) 1764 (scroll-bar-background scroll-bar :background) 1765 (mouse-color mouse :background))) 1766 apply-params) 1767 (dolist (param face-params) 1768 (let* ((value (frame-parameter frame (nth 0 param))) 1769 (face (nth 1 param)) 1770 (attr (nth 2 param)) 1771 (default-value (face-attribute face attr t))) 1772 ;; Compile a list of face attributes to set, but don't set 1773 ;; them yet. The call to make-face-x-resource-internal, 1774 ;; below, can change frame parameters, and the final set of 1775 ;; frame parameters should be the ones acquired at this step. 1776 (if (eq default-value 'unspecified) 1777 ;; The face spec does not specify a new-frame value for 1778 ;; this attribute. Check if the existing frame parameter 1779 ;; specifies it. 1780 (if value 1781 (push (list face frame attr value) apply-params)) 1782 ;; The face spec specifies a value for this attribute, to be 1783 ;; applied to the face on all new frames. 1784 (push (list face frame attr default-value) apply-params)))) 1785 ;; Initialize faces from face specs and X resources. The 1786 ;; condition-case prevents invalid specs from causing frame 1787 ;; creation to fail. 1788 (dolist (face (delq 'default (face-list))) 1789 (condition-case () 1790 (progn 1791 (face-spec-set face (face-user-default-spec face) frame) 1792 (if (memq window-system '(x w32 mac)) 1793 (make-face-x-resource-internal face frame)) 1794 (internal-merge-in-global-face face frame)) 1795 (error nil))) 1796 ;; Apply the attributes specified by frame parameters. This 1797 ;; rewrites parameters changed by make-face-x-resource-internal 1798 (dolist (param apply-params) 1799 (apply 'set-face-attribute param)))) 1800 1801(defun tty-handle-reverse-video (frame parameters) 1802 "Handle the reverse-video frame parameter for terminal frames." 1803 (when (cdr (or (assq 'reverse parameters) 1804 (assq 'reverse default-frame-alist))) 1805 (let* ((params (frame-parameters frame)) 1806 (bg (cdr (assq 'foreground-color params))) 1807 (fg (cdr (assq 'background-color params)))) 1808 (modify-frame-parameters frame 1809 (list (cons 'foreground-color fg) 1810 (cons 'background-color bg))) 1811 (if (equal bg (cdr (assq 'mouse-color params))) 1812 (modify-frame-parameters frame 1813 (list (cons 'mouse-color fg)))) 1814 (if (equal bg (cdr (assq 'cursor-color params))) 1815 (modify-frame-parameters frame 1816 (list (cons 'cursor-color fg))))))) 1817 1818 1819(defun tty-create-frame-with-faces (&optional parameters) 1820 "Create a frame from optional frame parameters PARAMETERS. 1821Parameters not specified by PARAMETERS are taken from 1822`default-frame-alist'. If either PARAMETERS or `default-frame-alist' 1823contains a `reverse' parameter, handle that. Value is the new frame 1824created." 1825 (let ((frame (make-terminal-frame parameters)) 1826 success) 1827 (unwind-protect 1828 (progn 1829 (tty-handle-reverse-video frame (frame-parameters frame)) 1830 (frame-set-background-mode frame) 1831 (face-set-after-frame-default frame) 1832 (setq success t)) 1833 (unless success 1834 (delete-frame frame))) 1835 frame)) 1836 1837 1838;; Called from C function init_display to initialize faces of the 1839;; dumped terminal frame on startup. 1840 1841(defun tty-set-up-initial-frame-faces () 1842 (let ((frame (selected-frame))) 1843 (frame-set-background-mode frame) 1844 (face-set-after-frame-default frame))) 1845 1846 1847 1848 1849;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1850;;; Compatiblity with 20.2 1851;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1852 1853;; Update a frame's faces when we change its default font. 1854 1855(defalias 'frame-update-faces 'ignore "") 1856(make-obsolete 'frame-update-faces "no longer necessary." "21.1") 1857 1858;; Update the colors of FACE, after FRAME's own colors have been 1859;; changed. 1860 1861(define-obsolete-function-alias 'frame-update-face-colors 1862 'frame-set-background-mode "21.1") 1863 1864 1865;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1866;;; Standard faces. 1867;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 1868 1869(defgroup basic-faces nil 1870 "The standard faces of Emacs." 1871 :group 'faces) 1872 1873(defface default 1874 '((t nil)) 1875 "Basic default face." 1876 :group 'basic-faces) 1877 1878(defface bold 1879 '((t :weight bold)) 1880 "Basic bold face." 1881 :group 'basic-faces) 1882 1883(defface italic 1884 '((((supports :slant italic)) 1885 :slant italic) 1886 (((supports :underline t)) 1887 :underline t) 1888 (t 1889 ;; default to italic, even it doesn't appear to be supported, 1890 ;; because in some cases the display engine will do it's own 1891 ;; workaround (to `dim' on ttys) 1892 :slant italic)) 1893 "Basic italic face." 1894 :group 'basic-faces) 1895 1896(defface bold-italic 1897 '((t :weight bold :slant italic)) 1898 "Basic bold-italic face." 1899 :group 'basic-faces) 1900 1901(defface underline 1902 '((((supports :underline t)) 1903 :underline t) 1904 (((supports :weight bold)) 1905 :weight bold) 1906 (t :underline t)) 1907 "Basic underlined face." 1908 :group 'basic-faces) 1909 1910(defface fixed-pitch 1911 '((t :family "courier")) 1912 "The basic fixed-pitch face." 1913 :group 'basic-faces) 1914 1915(defface variable-pitch 1916 '((t :family "helv")) 1917 "The basic variable-pitch face." 1918 :group 'basic-faces) 1919 1920(defface shadow 1921 '((((class color grayscale) (min-colors 88) (background light)) 1922 :foreground "grey50") 1923 (((class color grayscale) (min-colors 88) (background dark)) 1924 :foreground "grey70") 1925 (((class color) (min-colors 8) (background light)) 1926 :foreground "green") 1927 (((class color) (min-colors 8) (background dark)) 1928 :foreground "yellow")) 1929 "Basic face for shadowed text." 1930 :group 'basic-faces 1931 :version "22.1") 1932 1933(defface link 1934 '((((class color) (min-colors 88) (background light)) 1935 :foreground "blue1" :underline t) 1936 (((class color) (background light)) 1937 :foreground "blue" :underline t) 1938 (((class color) (min-colors 88) (background dark)) 1939 :foreground "cyan1" :underline t) 1940 (((class color) (background dark)) 1941 :foreground "cyan" :underline t) 1942 (t :inherit underline)) 1943 "Basic face for unvisited links." 1944 :group 'basic-faces 1945 :version "22.1") 1946 1947(defface link-visited 1948 '((default :inherit link) 1949 (((class color) (background light)) :foreground "magenta4") 1950 (((class color) (background dark)) :foreground "violet")) 1951 "Basic face for visited links." 1952 :group 'basic-faces 1953 :version "22.1") 1954 1955(defface highlight 1956 '((((class color) (min-colors 88) (background light)) 1957 :background "darkseagreen2") 1958 (((class color) (min-colors 88) (background dark)) 1959 :background "darkolivegreen") 1960 (((class color) (min-colors 16) (background light)) 1961 :background "darkseagreen2") 1962 (((class color) (min-colors 16) (background dark)) 1963 :background "darkolivegreen") 1964 (((class color) (min-colors 8)) 1965 :background "green" :foreground "black") 1966 (t :inverse-video t)) 1967 "Basic face for highlighting." 1968 :group 'basic-faces) 1969 1970(defface region 1971 '((((class color) (min-colors 88) (background dark)) 1972 :background "blue3") 1973 (((class color) (min-colors 88) (background light)) 1974 :background "lightgoldenrod2") 1975 (((class color) (min-colors 16) (background dark)) 1976 :background "blue3") 1977 (((class color) (min-colors 16) (background light)) 1978 :background "lightgoldenrod2") 1979 (((class color) (min-colors 8)) 1980 :background "blue" :foreground "white") 1981 (((type tty) (class mono)) 1982 :inverse-video t) 1983 (t :background "gray")) 1984 "Basic face for highlighting the region." 1985 :version "21.1" 1986 :group 'basic-faces) 1987 1988(defface secondary-selection 1989 '((((class color) (min-colors 88) (background light)) 1990 :background "yellow1") 1991 (((class color) (min-colors 88) (background dark)) 1992 :background "SkyBlue4") 1993 (((class color) (min-colors 16) (background light)) 1994 :background "yellow") 1995 (((class color) (min-colors 16) (background dark)) 1996 :background "SkyBlue4") 1997 (((class color) (min-colors 8)) 1998 :background "cyan" :foreground "black") 1999 (t :inverse-video t)) 2000 "Basic face for displaying the secondary selection." 2001 :group 'basic-faces) 2002 2003(defface trailing-whitespace 2004 '((((class color) (background light)) 2005 :background "red1") 2006 (((class color) (background dark)) 2007 :background "red1") 2008 (t :inverse-video t)) 2009 "Basic face for highlighting trailing whitespace." 2010 :version "21.1" 2011 :group 'whitespace-faces ; like `show-trailing-whitespace' 2012 :group 'basic-faces) 2013 2014(defface escape-glyph 2015 '((((background dark)) :foreground "cyan") 2016 ;; See the comment in minibuffer-prompt for 2017 ;; the reason not to use blue on MS-DOS. 2018 (((type pc)) :foreground "magenta") 2019 ;; red4 is too dark, but some say blue is too loud. 2020 ;; brown seems to work ok. -- rms. 2021 (t :foreground "brown")) 2022 "Face for characters displayed as sequences using `^' or `\\'." 2023 :group 'basic-faces 2024 :version "22.1") 2025 2026(defface nobreak-space 2027 '((((class color) (min-colors 88)) :inherit escape-glyph :underline t) 2028 (((class color) (min-colors 8)) :background "magenta") 2029 (t :inverse-video t)) 2030 "Face for displaying nobreak space." 2031 :group 'basic-faces 2032 :version "22.1") 2033 2034(defgroup mode-line-faces nil 2035 "Faces used in the mode line." 2036 :group 'mode-line 2037 :group 'faces 2038 :version "22.1") 2039 2040(defface mode-line 2041 '((((class color) (min-colors 88)) 2042 :box (:line-width -1 :style released-button) 2043 :background "grey75" :foreground "black") 2044 (t 2045 :inverse-video t)) 2046 "Basic mode line face for selected window." 2047 :version "21.1" 2048 :group 'mode-line-faces 2049 :group 'basic-faces) 2050 2051(defface mode-line-inactive 2052 '((default 2053 :inherit mode-line) 2054 (((class color) (min-colors 88) (background light)) 2055 :weight light 2056 :box (:line-width -1 :color "grey75" :style nil) 2057 :foreground "grey20" :background "grey90") 2058 (((class color) (min-colors 88) (background dark) ) 2059 :weight light 2060 :box (:line-width -1 :color "grey40" :style nil) 2061 :foreground "grey80" :background "grey30")) 2062 "Basic mode line face for non-selected windows." 2063 :version "22.1" 2064 :group 'mode-line-faces 2065 :group 'basic-faces) 2066 2067(defface mode-line-highlight 2068 '((((class color) (min-colors 88)) 2069 :box (:line-width 2 :color "grey40" :style released-button)) 2070 (t 2071 :inherit highlight)) 2072 "Basic mode line face for highlighting." 2073 :version "22.1" 2074 :group 'mode-line-faces 2075 :group 'basic-faces) 2076 2077(defface mode-line-buffer-id 2078 '((t (:weight bold))) 2079 "Face used for buffer identification parts of the mode line." 2080 :version "22.1" 2081 :group 'mode-line-faces 2082 :group 'basic-faces) 2083 2084;; Make `modeline' an alias for `mode-line', for compatibility. 2085(put 'modeline 'face-alias 'mode-line) 2086(put 'modeline-inactive 'face-alias 'mode-line-inactive) 2087(put 'modeline-highlight 'face-alias 'mode-line-highlight) 2088(put 'modeline-buffer-id 'face-alias 'mode-line-buffer-id) 2089 2090(defface header-line 2091 '((default 2092 :inherit mode-line) 2093 (((type tty)) 2094 ;; This used to be `:inverse-video t', but that doesn't look very 2095 ;; good when combined with inverse-video mode-lines and multiple 2096 ;; windows. Underlining looks better, and is more consistent with 2097 ;; the window-system face variants, which deemphasize the 2098 ;; header-line in relation to the mode-line face. If a terminal 2099 ;; can't underline, then the header-line will end up without any 2100 ;; highlighting; this may be too confusing in general, although it 2101 ;; happens to look good with the only current use of header-lines, 2102 ;; the info browser. XXX 2103 :inverse-video nil ;Override the value inherited from mode-line. 2104 :underline t) 2105 (((class color grayscale) (background light)) 2106 :background "grey90" :foreground "grey20" 2107 :box nil) 2108 (((class color grayscale) (background dark)) 2109 :background "grey20" :foreground "grey90" 2110 :box nil) 2111 (((class mono) (background light)) 2112 :background "white" :foreground "black" 2113 :inverse-video nil 2114 :box nil 2115 :underline t) 2116 (((class mono) (background dark)) 2117 :background "black" :foreground "white" 2118 :inverse-video nil 2119 :box nil 2120 :underline t)) 2121 "Basic header-line face." 2122 :version "21.1" 2123 :group 'basic-faces) 2124 2125(defface vertical-border 2126 '((((type tty)) :inherit mode-line-inactive)) 2127 "Face used for vertical window dividers on ttys." 2128 :version "22.1" 2129 :group 'basic-faces) 2130 2131(defface minibuffer-prompt 2132 '((((background dark)) :foreground "cyan") 2133 ;; Don't use blue because many users of the MS-DOS port customize 2134 ;; their foreground color to be blue. 2135 (((type pc)) :foreground "magenta") 2136 (t :foreground "medium blue")) 2137 "Face for minibuffer prompts. 2138By default, Emacs automatically adds this face to the value of 2139`minibuffer-prompt-properties', which is a list of text properties 2140used to display the prompt text." 2141 :version "22.1" 2142 :group 'basic-faces) 2143 2144(setq minibuffer-prompt-properties 2145 (append minibuffer-prompt-properties (list 'face 'minibuffer-prompt))) 2146 2147(defface fringe 2148 '((((class color) (background light)) 2149 :background "grey95") 2150 (((class color) (background dark)) 2151 :background "grey10") 2152 (t 2153 :background "gray")) 2154 "Basic face for the fringes to the left and right of windows under X." 2155 :version "21.1" 2156 :group 'frames 2157 :group 'basic-faces) 2158 2159(defface scroll-bar '((t nil)) 2160 "Basic face for the scroll bar colors under X." 2161 :version "21.1" 2162 :group 'frames 2163 :group 'basic-faces) 2164 2165(defface border '((t nil)) 2166 "Basic face for the frame border under X." 2167 :version "21.1" 2168 :group 'frames 2169 :group 'basic-faces) 2170 2171(defface cursor '((t nil)) 2172 "Basic face for the cursor color under X. 2173Note: Other faces cannot inherit from the cursor face." 2174 :version "21.1" 2175 :group 'cursor 2176 :group 'basic-faces) 2177 2178(put 'cursor 'face-no-inherit t) 2179 2180(defface mouse '((t nil)) 2181 "Basic face for the mouse color under X." 2182 :version "21.1" 2183 :group 'mouse 2184 :group 'basic-faces) 2185 2186(defface tool-bar 2187 '((default 2188 :box (:line-width 1 :style released-button) 2189 :foreground "black") 2190 (((type x w32 mac) (class color)) 2191 :background "grey75") 2192 (((type x) (class mono)) 2193 :background "grey")) 2194 "Basic tool-bar face." 2195 :version "21.1" 2196 :group 'basic-faces) 2197 2198(defface menu 2199 '((((type tty)) 2200 :inverse-video t) 2201 (((type x-toolkit)) 2202 ) 2203 (t 2204 :inverse-video t)) 2205 "Basic face for the font and colors of the menu bar and popup menus." 2206 :version "21.1" 2207 :group 'menu 2208 :group 'basic-faces) 2209 2210 2211;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 2212;;; Manipulating font names. 2213;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 2214 2215;; This is here for compatibilty with Emacs 20.2. For example, 2216;; international/fontset.el uses x-resolve-font-name. The following 2217;; functions are not used in the face implementation itself. 2218 2219(defvar x-font-regexp nil) 2220(defvar x-font-regexp-head nil) 2221(defvar x-font-regexp-weight nil) 2222(defvar x-font-regexp-slant nil) 2223 2224(defconst x-font-regexp-weight-subnum 1) 2225(defconst x-font-regexp-slant-subnum 2) 2226(defconst x-font-regexp-swidth-subnum 3) 2227(defconst x-font-regexp-adstyle-subnum 4) 2228 2229;;; Regexps matching font names in "Host Portable Character Representation." 2230;;; 2231(let ((- "[-?]") 2232 (foundry "[^-]+") 2233 (family "[^-]+") 2234 (weight "\\(bold\\|demibold\\|medium\\)") ; 1 2235; (weight\? "\\(\\*\\|bold\\|demibold\\|medium\\|\\)") ; 1 2236 (weight\? "\\([^-]*\\)") ; 1 2237 (slant "\\([ior]\\)") ; 2 2238; (slant\? "\\([ior?*]?\\)") ; 2 2239 (slant\? "\\([^-]?\\)") ; 2 2240; (swidth "\\(\\*\\|normal\\|semicondensed\\|\\)") ; 3 2241 (swidth "\\([^-]*\\)") ; 3 2242; (adstyle "\\(\\*\\|sans\\|\\)") ; 4 2243 (adstyle "\\([^-]*\\)") ; 4 2244 (pixelsize "[0-9]+") 2245 (pointsize "[0-9][0-9]+") 2246 (resx "[0-9][0-9]+") 2247 (resy "[0-9][0-9]+") 2248 (spacing "[cmp?*]") 2249 (avgwidth "[0-9]+") 2250 (registry "[^-]+") 2251 (encoding "[^-]+") 2252 ) 2253 (setq x-font-regexp 2254 (concat "\\`\\*?[-?*]" 2255 foundry - family - weight\? - slant\? - swidth - adstyle - 2256 pixelsize - pointsize - resx - resy - spacing - avgwidth - 2257 registry - encoding "\\*?\\'" 2258 )) 2259 (setq x-font-regexp-head 2260 (concat "\\`[-?*]" foundry - family - weight\? - slant\? 2261 "\\([-*?]\\|\\'\\)")) 2262 (setq x-font-regexp-slant (concat - slant -)) 2263 (setq x-font-regexp-weight (concat - weight -)) 2264 nil) 2265 2266 2267(defun x-resolve-font-name (pattern &optional face frame) 2268 "Return a font name matching PATTERN. 2269All wildcards in PATTERN are instantiated. 2270If PATTERN is nil, return the name of the frame's base font, which never 2271contains wildcards. 2272Given optional arguments FACE and FRAME, return a font which is 2273also the same size as FACE on FRAME, or fail." 2274 (or (symbolp face) 2275 (setq face (face-name face))) 2276 (and (eq frame t) 2277 (setq frame nil)) 2278 (if pattern 2279 ;; Note that x-list-fonts has code to handle a face with nil as its font. 2280 (let ((fonts (x-list-fonts pattern face frame 1))) 2281 (or fonts 2282 (if face 2283 (if (string-match "\\*" pattern) 2284 (if (null (face-font face)) 2285 (error "No matching fonts are the same height as the frame default font") 2286 (error "No matching fonts are the same height as face `%s'" face)) 2287 (if (null (face-font face)) 2288 (error "Height of font `%s' doesn't match the frame default font" 2289 pattern) 2290 (error "Height of font `%s' doesn't match face `%s'" 2291 pattern face))) 2292 (error "No fonts match `%s'" pattern))) 2293 (car fonts)) 2294 (cdr (assq 'font (frame-parameters (selected-frame)))))) 2295 2296 2297(defun x-frob-font-weight (font which) 2298 (let ((case-fold-search t)) 2299 (cond ((string-match x-font-regexp font) 2300 (concat (substring font 0 2301 (match-beginning x-font-regexp-weight-subnum)) 2302 which 2303 (substring font (match-end x-font-regexp-weight-subnum) 2304 (match-beginning x-font-regexp-adstyle-subnum)) 2305 ;; Replace the ADD_STYLE_NAME field with * 2306 ;; because the info in it may not be the same 2307 ;; for related fonts. 2308 "*" 2309 (substring font (match-end x-font-regexp-adstyle-subnum)))) 2310 ((string-match x-font-regexp-head font) 2311 (concat (substring font 0 (match-beginning 1)) which 2312 (substring font (match-end 1)))) 2313 ((string-match x-font-regexp-weight font) 2314 (concat (substring font 0 (match-beginning 1)) which 2315 (substring font (match-end 1))))))) 2316(make-obsolete 'x-frob-font-weight 'make-face-... "21.1") 2317 2318(defun x-frob-font-slant (font which) 2319 (let ((case-fold-search t)) 2320 (cond ((string-match x-font-regexp font) 2321 (concat (substring font 0 2322 (match-beginning x-font-regexp-slant-subnum)) 2323 which 2324 (substring font (match-end x-font-regexp-slant-subnum) 2325 (match-beginning x-font-regexp-adstyle-subnum)) 2326 ;; Replace the ADD_STYLE_NAME field with * 2327 ;; because the info in it may not be the same 2328 ;; for related fonts. 2329 "*" 2330 (substring font (match-end x-font-regexp-adstyle-subnum)))) 2331 ((string-match x-font-regexp-head font) 2332 (concat (substring font 0 (match-beginning 2)) which 2333 (substring font (match-end 2)))) 2334 ((string-match x-font-regexp-slant font) 2335 (concat (substring font 0 (match-beginning 1)) which 2336 (substring font (match-end 1))))))) 2337(make-obsolete 'x-frob-font-slant 'make-face-... "21.1") 2338 2339;; These aliases are here so that we don't get warnings about obsolete 2340;; functions from the byte compiler. 2341(defalias 'internal-frob-font-weight 'x-frob-font-weight) 2342(defalias 'internal-frob-font-slant 'x-frob-font-slant) 2343 2344(defun x-make-font-bold (font) 2345 "Given an X font specification, make a bold version of it. 2346If that can't be done, return nil." 2347 (internal-frob-font-weight font "bold")) 2348(make-obsolete 'x-make-font-bold 'make-face-bold "21.1") 2349 2350(defun x-make-font-demibold (font) 2351 "Given an X font specification, make a demibold version of it. 2352If that can't be done, return nil." 2353 (internal-frob-font-weight font "demibold")) 2354(make-obsolete 'x-make-font-demibold 'make-face-bold "21.1") 2355 2356(defun x-make-font-unbold (font) 2357 "Given an X font specification, make a non-bold version of it. 2358If that can't be done, return nil." 2359 (internal-frob-font-weight font "medium")) 2360(make-obsolete 'x-make-font-unbold 'make-face-unbold "21.1") 2361 2362(defun x-make-font-italic (font) 2363 "Given an X font specification, make an italic version of it. 2364If that can't be done, return nil." 2365 (internal-frob-font-slant font "i")) 2366(make-obsolete 'x-make-font-italic 'make-face-italic "21.1") 2367 2368(defun x-make-font-oblique (font) ; you say tomayto... 2369 "Given an X font specification, make an oblique version of it. 2370If that can't be done, return nil." 2371 (internal-frob-font-slant font "o")) 2372(make-obsolete 'x-make-font-oblique 'make-face-italic "21.1") 2373 2374(defun x-make-font-unitalic (font) 2375 "Given an X font specification, make a non-italic version of it. 2376If that can't be done, return nil." 2377 (internal-frob-font-slant font "r")) 2378(make-obsolete 'x-make-font-unitalic 'make-face-unitalic "21.1") 2379 2380(defun x-make-font-bold-italic (font) 2381 "Given an X font specification, make a bold and italic version of it. 2382If that can't be done, return nil." 2383 (and (setq font (internal-frob-font-weight font "bold")) 2384 (internal-frob-font-slant font "i"))) 2385(make-obsolete 'x-make-font-bold-italic 'make-face-bold-italic "21.1") 2386 2387(provide 'faces) 2388 2389;; arch-tag: 19a4759f-2963-445f-b004-425b9aadd7d6 2390;;; faces.el ends here 2391