Mercurial > hg > xemacs-beta
annotate lisp/font.el @ 4759:aa5ed11f473b
Remove support for obsolete systems. See xemacs-patches message with ID
<870180fe0911101613m6b8efa4bpf083fd9013950807@mail.gmail.com>.
| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Wed, 18 Nov 2009 08:49:14 -0700 |
| parents | 90dbf8e772b6 |
| children | 32b358a240b0 |
| rev | line source |
|---|---|
| 428 | 1 ;;; font.el --- New font model |
| 502 | 2 |
| 3 ;; Copyright (c) 1995, 1996 by William M. Perry (wmperry@cs.indiana.edu) | |
| 4 ;; Copyright (c) 1996, 1997 Free Software Foundation, Inc. | |
| 2527 | 5 ;; Copyright (C) 2002, 2004 Ben Wing. |
| 502 | 6 |
| 428 | 7 ;; Author: wmperry |
| 502 | 8 ;; Maintainer: XEmacs Development Team |
| 428 | 9 ;; Created: 1997/09/05 15:44:37 |
| 502 | 10 ;; Keywords: faces |
| 428 | 11 ;; Version: 1.52 |
| 502 | 12 |
| 13 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 14 ;; under the terms of the GNU General Public License as published by | |
| 872 | 15 ;; the Free Software Foundation; either version 2, or (at your option) |
| 502 | 16 ;; any later version. |
| 17 | |
| 18 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 21 ;; General Public License for more details. | |
| 428 | 22 |
| 502 | 23 ;; You should have received a copy of the GNU General Public License |
| 24 ;; along with XEmacs; see the file COPYING. If not, write to the Free | |
| 25 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 26 ;; 02111-1307, USA. | |
| 27 | |
| 28 ;;; Synched up with: Not in FSF | |
| 29 | |
| 30 ;;; Commentary: | |
| 428 | 31 |
| 3094 | 32 ;; This file is totally bogus in the context of Emacs. Much of what it does |
| 33 ;; is really in the provice of faces (for example all the style parameters), | |
| 34 ;; and that's the way it is in GNU Emacs. | |
| 35 ;; | |
| 36 ;; What is needed for fonts at the Lisp level is a consistent way to access | |
| 37 ;; face properties that are actually associated with fonts for some rendering | |
| 38 ;; engine, in other words, the kinds of facilities provided by fontconfig | |
| 39 ;; patterns. We just need to provide an interface to looking up, storing, | |
| 40 ;; and manipulating font specifications with certain properties. There will | |
| 41 ;; be some engine-specific stuff, like the bogosity of X11's character set | |
| 42 ;; registries. | |
| 43 | |
| 502 | 44 ;;; Code: |
| 45 | |
| 46 (globally-declare-fboundp | |
| 2527 | 47 '(internal-facep fontsetp get-font-info |
| 523 | 48 get-fontset-info mswindows-define-rgb-color cancel-function-timers |
| 872 | 49 mswindows-font-regexp mswindows-canonicalize-font-name |
| 50 mswindows-parse-font-style mswindows-construct-font-style | |
| 523 | 51 ;; #### perhaps we should rewrite font-warn to avoid the warning |
| 4103 | 52 ;; Eh, now I look at the code, we definitely should. |
| 53 font-warn | |
| 54 fc-pattern-get-family fc-pattern-get-size fc-pattern-get-weight | |
| 55 fc-font-weight-translate-from-constant make-fc-pattern | |
| 56 fc-pattern-add-family fc-pattern-add-size)) | |
| 502 | 57 |
| 58 (globally-declare-boundp | |
| 59 '(global-face-data | |
| 1346 | 60 x-font-regexp x-font-regexp-foundry-and-family |
| 3094 | 61 fc-font-regexp |
| 1346 | 62 mswindows-font-regexp)) |
| 502 | 63 |
| 428 | 64 (require 'cl) |
| 65 | |
| 66 (eval-and-compile | |
| 67 (defvar device-fonts-cache) | |
| 68 (condition-case () | |
| 69 (require 'custom) | |
| 70 (error nil)) | |
| 71 (if (and (featurep 'custom) (fboundp 'custom-declare-variable)) | |
| 72 nil ;; We've got what we needed | |
| 73 ;; We have the old custom-library, hack around it! | |
| 74 (defmacro defgroup (&rest args) | |
| 75 nil) | |
| 76 (defmacro defcustom (var value doc &rest args) | |
| 77 `(defvar ,var ,value ,doc)))) | |
| 78 | |
| 2527 | 79 ; delete alternate defn of try-font-name |
| 428 | 80 |
| 81 (if (not (fboundp 'facep)) | |
| 82 (defun facep (face) | |
| 83 "Return t if X is a face name or an internal face vector." | |
| 84 (if (not window-system) | |
| 85 nil ; FIXME if FSF ever does TTY faces | |
| 86 (and (or (internal-facep face) | |
| 87 (and (symbolp face) (assq face global-face-data))) | |
| 88 t)))) | |
| 89 | |
| 90 (if (not (fboundp 'set-face-property)) | |
| 91 (defun set-face-property (face property value &optional locale | |
| 92 tag-set how-to-add) | |
| 93 "Change a property of FACE." | |
| 94 (and (symbolp face) | |
| 95 (put face property value)))) | |
| 96 | |
| 97 (if (not (fboundp 'face-property)) | |
| 98 (defun face-property (face property &optional locale tag-set exact-p) | |
| 99 "Return FACE's value of the given PROPERTY." | |
| 100 (and (symbolp face) (get face property)))) | |
| 101 | |
| 102 (require 'disp-table) | |
| 103 | |
| 104 | |
| 105 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 106 ;;; Lots of variables / keywords for use later in the program | |
| 107 ;;; Not much should need to be modified | |
| 108 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3094 | 109 ;; #### These aren't window system mappings |
| 428 | 110 (defconst font-window-system-mappings |
| 111 '((x . (x-font-create-name x-font-create-object)) | |
| 608 | 112 (gtk . (x-font-create-name x-font-create-object)) |
| 3094 | 113 ;; #### FIXME should this handle fontconfig font objects? |
| 114 (fc . (fc-font-create-name fc-font-create-object)) | |
| 428 | 115 (mswindows . (mswindows-font-create-name mswindows-font-create-object)) |
| 116 (pm . (x-font-create-name x-font-create-object)) ; Change? FIXME | |
| 3094 | 117 ;; #### what is this bogosity? |
| 428 | 118 (tty . (tty-font-create-plist tty-font-create-object))) |
| 707 | 119 "An assoc list mapping device types to a list of translations. |
| 120 | |
| 121 The first function creates a font name from a font descriptor object. | |
| 122 The second performs the reverse translation.") | |
| 428 | 123 |
| 124 (defconst x-font-weight-mappings | |
| 125 '((:extra-light . "extralight") | |
| 126 (:light . "light") | |
| 127 (:demi-light . "demilight") | |
| 128 (:demi . "demi") | |
| 129 (:book . "book") | |
| 130 (:medium . "medium") | |
| 131 (:normal . "medium") | |
| 132 (:demi-bold . "demibold") | |
| 133 (:bold . "bold") | |
| 134 (:extra-bold . "extrabold")) | |
| 135 "An assoc list mapping keywords to actual Xwindow specific strings | |
| 136 for use in the 'weight' field of an X font string.") | |
| 137 | |
| 138 (defconst font-possible-weights | |
| 139 (mapcar 'car x-font-weight-mappings)) | |
| 140 | |
| 141 (defvar font-rgb-file nil | |
| 142 "Where the RGB file was found.") | |
| 143 | |
| 144 (defvar font-maximum-slippage "1pt" | |
| 145 "How much a font is allowed to vary from the desired size.") | |
| 146 | |
| 707 | 147 ;; Canonical (internal) sizes are in points. |
| 428 | 148 |
| 3094 | 149 ;; Property keywords: :family :style :size :registry :encoding :weight |
| 150 ;; Weight keywords: :extra-light :light :demi-light :medium | |
| 151 ;; :normal :demi-bold :bold :extra-bold | |
| 152 ;; See GNU Emacs 21.4 for more properties and keywords we should support | |
| 428 | 153 |
| 154 (defvar font-style-keywords nil) | |
| 155 | |
| 502 | 156 (defun set-font-family (fontobj family) |
| 428 | 157 (aset fontobj 1 family)) |
| 158 | |
| 502 | 159 (defun set-font-weight (fontobj weight) |
| 428 | 160 (aset fontobj 3 weight)) |
| 161 | |
| 502 | 162 (defun set-font-style (fontobj style) |
| 428 | 163 (aset fontobj 5 style)) |
| 164 | |
| 502 | 165 (defun set-font-size (fontobj size) |
| 428 | 166 (aset fontobj 7 size)) |
| 167 | |
| 502 | 168 (defun set-font-registry (fontobj reg) |
| 428 | 169 (aset fontobj 9 reg)) |
| 170 | |
| 502 | 171 (defun set-font-encoding (fontobj enc) |
| 428 | 172 (aset fontobj 11 enc)) |
| 173 | |
| 502 | 174 (defun font-family (fontobj) |
| 428 | 175 (aref fontobj 1)) |
| 176 | |
| 502 | 177 (defun font-weight (fontobj) |
| 428 | 178 (aref fontobj 3)) |
| 179 | |
| 502 | 180 (defun font-style (fontobj) |
| 428 | 181 (aref fontobj 5)) |
| 182 | |
| 502 | 183 (defun font-size (fontobj) |
| 428 | 184 (aref fontobj 7)) |
| 185 | |
| 502 | 186 (defun font-registry (fontobj) |
| 428 | 187 (aref fontobj 9)) |
| 188 | |
| 502 | 189 (defun font-encoding (fontobj) |
| 428 | 190 (aref fontobj 11)) |
| 191 | |
| 192 (eval-when-compile | |
| 193 (defmacro define-new-mask (attr mask) | |
| 194 `(progn | |
| 195 (setq font-style-keywords | |
| 196 (cons (cons (quote ,attr) | |
| 197 (cons | |
| 198 (quote ,(intern (format "set-font-%s-p" attr))) | |
| 199 (quote ,(intern (format "font-%s-p" attr))))) | |
| 200 font-style-keywords)) | |
| 502 | 201 (defconst ,(intern (format "font-%s-mask" attr)) (lsh 1 ,mask) |
| 428 | 202 ,(format |
| 203 "Bitmask for whether a font is to be rendered in %s or not." | |
| 204 attr)) | |
| 205 (defun ,(intern (format "font-%s-p" attr)) (fontobj) | |
|
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Docstring spelling fixes.
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parents:
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changeset
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206 ,(format "Whether FONTOBJ will be rendered in `%s' or not." attr) |
| 502 | 207 (if (/= 0 (logand (font-style fontobj) |
| 428 | 208 ,(intern (format "font-%s-mask" attr)))) |
| 209 t | |
| 210 nil)) | |
| 211 (defun ,(intern (format "set-font-%s-p" attr)) (fontobj val) | |
|
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Docstring spelling fixes.
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parents:
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changeset
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212 ,(format "Set whether FONTOBJ will be rendered in `%s' or not." |
| 428 | 213 attr) |
| 214 (cond | |
| 215 (val | |
| 502 | 216 (set-font-style fontobj (logior (font-style fontobj) |
| 217 ,(intern | |
| 218 (format "font-%s-mask" attr))))) | |
| 428 | 219 ((,(intern (format "font-%s-p" attr)) fontobj) |
| 220 (set-font-style fontobj (- (font-style fontobj) | |
| 221 ,(intern | |
| 222 (format "font-%s-mask" attr))))))) | |
| 223 ))) | |
| 224 | |
| 523 | 225 (define-new-mask bold 1) |
| 226 (define-new-mask italic 2) | |
| 227 (define-new-mask oblique 3) | |
| 228 (define-new-mask dim 4) | |
| 229 (define-new-mask underline 5) | |
| 230 (define-new-mask overline 6) | |
| 231 (define-new-mask linethrough 7) | |
| 232 (define-new-mask strikethru 8) | |
| 233 (define-new-mask reverse 9) | |
| 234 (define-new-mask blink 10) | |
| 235 (define-new-mask smallcaps 11) | |
| 236 (define-new-mask bigcaps 12) | |
| 237 (define-new-mask dropcaps 13) | |
| 428 | 238 |
| 239 (defvar font-caps-display-table | |
| 240 (let ((table (make-display-table)) | |
| 241 (i 0)) | |
| 242 ;; Standard ASCII characters | |
| 243 (while (< i 26) | |
|
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244 (put-display-table (+ i ?a) (+ i ?A) table) |
| 428 | 245 (setq i (1+ i))) |
| 246 ;; Now ISO translations | |
| 3094 | 247 ;; #### FIXME what's this for?? |
| 428 | 248 (setq i 224) |
| 249 (while (< i 247) ;; Agrave - Ouml | |
|
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250 (put-display-table i (- i 32) table) |
| 428 | 251 (setq i (1+ i))) |
| 252 (setq i 248) | |
| 253 (while (< i 255) ;; Oslash - Thorn | |
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changeset
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254 (put-display-table i (- i 32) table) |
| 428 | 255 (setq i (1+ i))) |
| 256 table)) | |
| 257 | |
| 258 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 259 ;;; Utility functions | |
| 260 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3094 | 261 ;; #### unused? |
| 262 ; (defun set-font-style-by-keywords (fontobj styles) | |
| 263 ; (make-local-variable 'font-func) | |
| 264 ; (declare (special font-func)) | |
| 265 ; (if (listp styles) | |
| 266 ; (while styles | |
| 267 ; (setq font-func (car-safe (cdr-safe (assq (car styles) | |
| 268 ; font-style-keywords))) | |
| 269 ; styles (cdr styles)) | |
| 270 ; (and (fboundp font-func) (funcall font-func fontobj t))) | |
| 271 ; (setq font-func (car-safe (cdr-safe (assq styles font-style-keywords)))) | |
| 272 ; (and (fboundp font-func) (funcall font-func fontobj t)))) | |
| 428 | 273 |
| 3094 | 274 ;; #### unused? |
| 275 ; (defun font-properties-from-style (fontobj) | |
| 276 ; (let ((todo font-style-keywords) | |
| 277 ; type func retval) | |
| 278 ; (while todo | |
| 279 ; (setq func (cdr (cdr (car todo))) | |
| 280 ; type (car (pop todo))) | |
| 281 ; (if (funcall func fontobj) | |
| 282 ; (setq retval (cons type retval)))) | |
| 283 ; retval)) | |
| 428 | 284 |
| 285 (defun font-higher-weight (w1 w2) | |
| 286 (let ((index1 (length (memq w1 font-possible-weights))) | |
| 287 (index2 (length (memq w2 font-possible-weights)))) | |
| 288 (cond | |
| 289 ((<= index1 index2) | |
| 290 (or w1 w2)) | |
| 291 ((not w2) | |
| 292 w1) | |
| 293 (t | |
| 294 w2)))) | |
| 295 | |
| 296 (defun font-spatial-to-canonical (spec &optional device) | |
| 707 | 297 "Convert SPEC (in inches, millimeters, points, picas, or pixels) into points. |
| 298 | |
| 299 Canonical sizes are in points. If SPEC is null, nil is returned. If SPEC is | |
| 300 a number, it is interpreted as the desired point size and returned unchanged. | |
| 301 Otherwise SPEC must be a string consisting of a number and an optional type. | |
| 302 The type may be the strings \"px\", \"pix\", or \"pixel\" (pixels), \"pt\" or | |
| 2685 | 303 \"point\" (points), \"pa\" or \"pica\" (picas), \"in\" or \"inch\" (inches), |
| 304 \"cm\" (centimeters), or \"mm\" (millimeters). | |
| 707 | 305 |
| 306 1 in = 2.54 cm = 6 pa = 25.4 mm = 72 pt. Pixel size is device-dependent." | |
| 428 | 307 (cond |
| 308 ((numberp spec) | |
| 309 spec) | |
| 310 ((null spec) | |
| 311 nil) | |
| 312 (t | |
| 313 (let ((num nil) | |
| 314 (type nil) | |
| 315 ;; If for any reason we get null for any of this, default | |
| 316 ;; to 1024x768 resolution on a 17" screen | |
| 317 (pix-width (float (or (device-pixel-width device) 1024))) | |
| 318 (mm-width (float (or (device-mm-width device) 293))) | |
| 319 (retval nil)) | |
| 320 (cond | |
| 3094 | 321 ;; #### this is pretty bogus and should probably be made gone |
| 322 ;; or supported at a higher level | |
| 428 | 323 ((string-match "^ *\\([-+*/]\\) *" spec) ; math! whee! |
| 324 (let ((math-func (intern (match-string 1 spec))) | |
| 325 (other (font-spatial-to-canonical | |
| 326 (substring spec (match-end 0) nil))) | |
| 327 (default (font-spatial-to-canonical | |
| 328 (font-default-size-for-device device)))) | |
| 329 (if (fboundp math-func) | |
| 330 (setq type "px" | |
| 331 spec (int-to-string (funcall math-func default other))) | |
| 332 (setq type "px" | |
| 333 spec (int-to-string other))))) | |
| 334 ((string-match "[^0-9.]+$" spec) | |
| 335 (setq type (substring spec (match-beginning 0)) | |
| 336 spec (substring spec 0 (match-beginning 0)))) | |
| 337 (t | |
| 338 (setq type "px" | |
| 339 spec spec))) | |
| 340 (setq num (string-to-number spec)) | |
| 341 (cond | |
| 342 ((member type '("pixel" "px" "pix")) | |
| 2685 | 343 (setq retval (* num (/ mm-width pix-width) (/ 72.0 25.4)))) |
| 428 | 344 ((member type '("point" "pt")) |
| 345 (setq retval num)) | |
| 346 ((member type '("pica" "pa")) | |
| 347 (setq retval (* num 12.0))) | |
| 348 ((member type '("inch" "in")) | |
| 349 (setq retval (* num 72.0))) | |
| 350 ((string= type "mm") | |
| 351 (setq retval (* num (/ 72.0 25.4)))) | |
| 352 ((string= type "cm") | |
| 3094 | 353 (setq retval (* num (/ 72.0 2.54)))) |
| 428 | 354 (t |
| 355 (setq retval num)) | |
| 356 ) | |
| 357 retval)))) | |
| 358 | |
| 359 | |
| 360 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 361 ;;; The main interface routines - constructors and accessor functions | |
| 362 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 363 (defun make-font (&rest args) | |
| 364 (vector :family | |
| 365 (if (stringp (plist-get args :family)) | |
| 366 (list (plist-get args :family)) | |
| 367 (plist-get args :family)) | |
| 368 :weight | |
| 369 (plist-get args :weight) | |
| 370 :style | |
| 371 (if (numberp (plist-get args :style)) | |
| 372 (plist-get args :style) | |
| 373 0) | |
| 374 :size | |
| 375 (plist-get args :size) | |
| 376 :registry | |
| 377 (plist-get args :registry) | |
| 378 :encoding | |
| 379 (plist-get args :encoding))) | |
| 380 | |
| 381 (defun font-create-name (fontobj &optional device) | |
| 707 | 382 "Return a font name constructed from FONTOBJ, appropriate for DEVICE." |
| 428 | 383 (let* ((type (device-type device)) |
| 384 (func (car (cdr-safe (assq type font-window-system-mappings))))) | |
| 385 (and func (fboundp func) (funcall func fontobj device)))) | |
| 386 | |
| 387 ;;;###autoload | |
| 388 (defun font-create-object (fontname &optional device) | |
| 707 | 389 "Return a font descriptor object for FONTNAME, appropriate for DEVICE." |
| 428 | 390 (let* ((type (device-type device)) |
| 391 (func (car (cdr (cdr-safe (assq type font-window-system-mappings)))))) | |
| 392 (and func (fboundp func) (funcall func fontname device)))) | |
| 393 | |
| 394 (defun font-combine-fonts-internal (fontobj-1 fontobj-2) | |
| 395 (let ((retval (make-font)) | |
| 396 (size-1 (and (font-size fontobj-1) | |
| 397 (font-spatial-to-canonical (font-size fontobj-1)))) | |
| 398 (size-2 (and (font-size fontobj-2) | |
| 399 (font-spatial-to-canonical (font-size fontobj-2))))) | |
| 400 (set-font-weight retval (font-higher-weight (font-weight fontobj-1) | |
| 401 (font-weight fontobj-2))) | |
|
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Remove duplicate functions, chiefly #'delete-duplicates reimplementations.
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parents:
4577
diff
changeset
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402 (set-font-family retval |
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parents:
4577
diff
changeset
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403 (delete-duplicates (append (font-family fontobj-1) |
|
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404 (font-family fontobj-2)) |
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Fix typo in font-combine-fonts-internal.
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parents:
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diff
changeset
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405 :test #'equal)) |
| 502 | 406 (set-font-style retval (logior (font-style fontobj-1) |
| 407 (font-style fontobj-2))) | |
| 428 | 408 (set-font-registry retval (or (font-registry fontobj-1) |
| 409 (font-registry fontobj-2))) | |
| 410 (set-font-encoding retval (or (font-encoding fontobj-1) | |
| 411 (font-encoding fontobj-2))) | |
| 412 (set-font-size retval (cond | |
| 413 ((and size-1 size-2 (>= size-2 size-1)) | |
| 414 (font-size fontobj-2)) | |
| 415 ((and size-1 size-2) | |
| 416 (font-size fontobj-1)) | |
| 417 (size-1 | |
| 418 (font-size fontobj-1)) | |
| 419 (size-2 | |
| 420 (font-size fontobj-2)) | |
| 421 (t nil))) | |
| 422 | |
| 423 retval)) | |
| 424 | |
| 425 (defun font-combine-fonts (&rest args) | |
| 426 (cond | |
| 427 ((null args) | |
| 428 (error "Wrong number of arguments to font-combine-fonts")) | |
| 429 ((= (length args) 1) | |
| 430 (car args)) | |
| 431 (t | |
| 432 (let ((retval (font-combine-fonts-internal (nth 0 args) (nth 1 args)))) | |
| 433 (setq args (cdr (cdr args))) | |
| 434 (while args | |
| 435 (setq retval (font-combine-fonts-internal retval (car args)) | |
| 436 args (cdr args))) | |
| 437 retval)))) | |
| 438 | |
| 3094 | 439 (defvar font-default-cache nil) |
| 440 | |
| 441 ;;;###autoload | |
| 442 (defun font-default-font-for-device (&optional device) | |
| 443 (or device (setq device (selected-device))) | |
| 444 (font-truename | |
| 445 (make-font-specifier | |
| 446 (face-font-name 'default device)))) | |
| 447 | |
| 448 ;;;###autoload | |
| 449 (defun font-default-object-for-device (&optional device) | |
| 450 (let ((font (font-default-font-for-device device))) | |
| 451 (or (cdr-safe (assoc font font-default-cache)) | |
| 452 (let ((object (font-create-object font))) | |
| 453 (push (cons font object) font-default-cache) | |
| 454 object)))) | |
| 455 | |
| 456 ;;;###autoload | |
| 457 (defun font-default-family-for-device (&optional device) | |
| 458 (font-family (font-default-object-for-device (or device (selected-device))))) | |
| 459 | |
| 460 ;;;###autoload | |
| 461 (defun font-default-registry-for-device (&optional device) | |
| 462 (font-registry (font-default-object-for-device (or device (selected-device))))) | |
| 463 | |
| 464 ;;;###autoload | |
| 465 (defun font-default-encoding-for-device (&optional device) | |
| 466 (font-encoding (font-default-object-for-device (or device (selected-device))))) | |
| 467 | |
| 468 ;;;###autoload | |
| 469 (defun font-default-size-for-device (&optional device) | |
| 470 ;; face-height isn't the right thing (always 1 pixel too high?) | |
| 471 ;; (if font-running-xemacs | |
| 472 ;; (format "%dpx" (face-height 'default device)) | |
| 473 (font-size (font-default-object-for-device (or device (selected-device))))) | |
| 474 | |
| 428 | 475 |
| 476 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 477 ;;; The window-system dependent code (TTY-style) | |
| 478 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 479 (defun tty-font-create-object (fontname &optional device) | |
| 707 | 480 "Return a font descriptor object for FONTNAME, appropriate for TTY devices." |
| 428 | 481 (make-font :size "12pt")) |
| 482 | |
| 483 (defun tty-font-create-plist (fontobj &optional device) | |
| 707 | 484 "Return a font name constructed from FONTOBJ, appropriate for TTY devices." |
| 428 | 485 (list |
| 486 (cons 'underline (font-underline-p fontobj)) | |
| 487 (cons 'highlight (if (or (font-bold-p fontobj) | |
| 488 (memq (font-weight fontobj) '(:bold :demi-bold))) | |
| 489 t)) | |
| 490 (cons 'dim (font-dim-p fontobj)) | |
| 491 (cons 'blinking (font-blink-p fontobj)) | |
| 492 (cons 'reverse (font-reverse-p fontobj)))) | |
| 493 | |
| 494 | |
| 495 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 496 ;;; The window-system dependent code (X-style) | |
| 497 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 3094 | 498 (defvar font-x-font-regexp (when (and (boundp 'x-font-regexp) |
| 499 x-font-regexp) | |
| 428 | 500 (let |
| 501 ((- "[-?]") | |
| 502 (foundry "[^-]*") | |
| 503 (family "[^-]*") | |
| 502 | 504 ;(weight "\\(bold\\|demibold\\|medium\\|black\\)") |
| 428 | 505 (weight\? "\\([^-]*\\)") |
| 502 | 506 ;(slant "\\([ior]\\)") |
| 428 | 507 (slant\? "\\([^-]?\\)") |
| 508 (swidth "\\([^-]*\\)") | |
| 509 (adstyle "\\([^-]*\\)") | |
| 510 (pixelsize "\\(\\*\\|[0-9]+\\)") | |
| 511 (pointsize "\\(\\*\\|0\\|[0-9][0-9]+\\)") | |
| 512 (resx "\\([*0]\\|[0-9][0-9]+\\)") | |
| 513 (resy "\\([*0]\\|[0-9][0-9]+\\)") | |
| 514 (spacing "[cmp?*]") | |
| 515 (avgwidth "\\(\\*\\|[0-9]+\\)") | |
| 516 (registry "[^-]*") | |
| 517 (encoding "[^-]+") | |
| 518 ) | |
| 519 (concat "\\`\\*?[-?*]" | |
| 520 foundry - family - weight\? - slant\? - swidth - adstyle - | |
| 521 pixelsize - pointsize - resx - resy - spacing - avgwidth - | |
| 522 registry - encoding "\\'" | |
| 523 )))) | |
| 524 | |
| 525 (defvar font-x-registry-and-encoding-regexp | |
| 3094 | 526 (when (and (boundp 'x-font-regexp-registry-and-encoding) |
| 527 (symbol-value 'x-font-regexp-registry-and-encoding)) | |
| 528 (let ((- "[-?]") | |
| 529 (registry "[^-]*") | |
| 530 (encoding "[^-]+")) | |
| 531 (concat - "\\(" registry "\\)" - "\\(" encoding "\\)\\'")))) | |
| 428 | 532 |
| 533 (defvar font-x-family-mappings | |
| 534 '( | |
| 535 ("serif" . ("new century schoolbook" | |
| 536 "utopia" | |
| 537 "charter" | |
| 538 "times" | |
| 539 "lucidabright" | |
| 540 "garamond" | |
| 541 "palatino" | |
| 542 "times new roman" | |
| 543 "baskerville" | |
| 544 "bookman" | |
| 545 "bodoni" | |
| 546 "computer modern" | |
| 547 "rockwell" | |
| 548 )) | |
| 549 ("sans-serif" . ("lucida" | |
| 550 "helvetica" | |
| 551 "gills-sans" | |
| 552 "avant-garde" | |
| 553 "univers" | |
| 554 "optima")) | |
| 555 ("elfin" . ("tymes")) | |
| 556 ("monospace" . ("courier" | |
| 557 "fixed" | |
| 558 "lucidatypewriter" | |
| 559 "clean" | |
| 560 "terminal")) | |
| 561 ("cursive" . ("sirene" | |
| 562 "zapf chancery")) | |
| 563 ) | |
| 564 "A list of font family mappings on X devices.") | |
| 565 | |
| 566 (defun x-font-create-object (fontname &optional device) | |
| 707 | 567 "Return a font descriptor object for FONTNAME, appropriate for X devices." |
| 428 | 568 (let ((case-fold-search t)) |
| 569 (if (or (not (stringp fontname)) | |
| 570 (not (string-match font-x-font-regexp fontname))) | |
| 4099 | 571 (if (and (stringp fontname) |
| 572 (string-match font-xft-font-regexp fontname)) | |
| 573 ;; Return an XFT font. | |
| 574 (xft-font-create-object fontname) | |
| 575 ;; It's unclear how to parse the font; return an unspecified | |
| 576 ;; one. | |
| 577 (make-font)) | |
| 428 | 578 (let ((family nil) |
| 579 (size nil) | |
| 580 (weight (match-string 1 fontname)) | |
| 581 (slant (match-string 2 fontname)) | |
| 582 (swidth (match-string 3 fontname)) | |
| 583 (adstyle (match-string 4 fontname)) | |
| 584 (pxsize (match-string 5 fontname)) | |
| 585 (ptsize (match-string 6 fontname)) | |
| 586 (retval nil) | |
| 587 (case-fold-search t) | |
| 588 ) | |
| 589 (if (not (string-match x-font-regexp-foundry-and-family fontname)) | |
| 590 nil | |
| 591 (setq family (list (downcase (match-string 1 fontname))))) | |
| 592 (if (string= "*" weight) (setq weight nil)) | |
| 593 (if (string= "*" slant) (setq slant nil)) | |
| 594 (if (string= "*" swidth) (setq swidth nil)) | |
| 595 (if (string= "*" adstyle) (setq adstyle nil)) | |
| 596 (if (string= "*" pxsize) (setq pxsize nil)) | |
| 597 (if (string= "*" ptsize) (setq ptsize nil)) | |
| 598 (if ptsize (setq size (/ (string-to-int ptsize) 10))) | |
| 599 (if (and (not size) pxsize) (setq size (concat pxsize "px"))) | |
| 600 (if weight (setq weight (intern-soft (concat ":" (downcase weight))))) | |
| 601 (if (and adstyle (not (equal adstyle ""))) | |
| 602 (setq family (append family (list (downcase adstyle))))) | |
| 603 (setq retval (make-font :family family | |
| 604 :weight weight | |
| 605 :size size)) | |
| 606 (set-font-bold-p retval (eq :bold weight)) | |
| 607 (cond | |
| 608 ((null slant) nil) | |
| 609 ((member slant '("i" "I")) | |
| 610 (set-font-italic-p retval t)) | |
| 611 ((member slant '("o" "O")) | |
| 612 (set-font-oblique-p retval t))) | |
| 613 (when (string-match font-x-registry-and-encoding-regexp fontname) | |
| 614 (set-font-registry retval (match-string 1 fontname)) | |
| 615 (set-font-encoding retval (match-string 2 fontname))) | |
| 616 retval)))) | |
| 617 | |
| 618 (defun x-font-families-for-device (&optional device no-resetp) | |
| 619 (ignore-errors (require 'x-font-menu)) | |
| 620 (or device (setq device (selected-device))) | |
| 621 (if (boundp 'device-fonts-cache) | |
| 622 (let ((menu (or (cdr-safe (assq device device-fonts-cache))))) | |
| 623 (if (and (not menu) (not no-resetp)) | |
| 624 (progn | |
| 625 (reset-device-font-menus device) | |
| 626 (x-font-families-for-device device t)) | |
| 627 (let ((scaled (mapcar #'(lambda (x) (if x (aref x 0))) | |
| 628 (aref menu 0))) | |
| 629 (normal (mapcar #'(lambda (x) (if x (aref x 0))) | |
| 630 (aref menu 1)))) | |
|
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631 (sort (delete-duplicates (nconc scaled normal) :test 'equal) |
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parents:
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diff
changeset
|
632 'string-lessp)))) |
| 428 | 633 (cons "monospace" (mapcar 'car font-x-family-mappings)))) |
| 634 | |
| 635 (defun x-font-create-name (fontobj &optional device) | |
| 707 | 636 "Return a font name constructed from FONTOBJ, appropriate for X devices." |
| 428 | 637 (if (and (not (or (font-family fontobj) |
| 638 (font-weight fontobj) | |
| 639 (font-size fontobj) | |
| 640 (font-registry fontobj) | |
| 641 (font-encoding fontobj))) | |
| 642 (= (font-style fontobj) 0)) | |
| 643 (face-font 'default) | |
| 644 (or device (setq device (selected-device))) | |
| 645 (let* ((default (font-default-object-for-device device)) | |
| 646 (family (or (font-family fontobj) | |
| 647 (font-family default) | |
| 648 (x-font-families-for-device device))) | |
| 649 (weight (or (font-weight fontobj) :medium)) | |
| 3094 | 650 (size (or (font-size fontobj) |
| 428 | 651 (font-size default))) |
| 652 (registry (or (font-registry fontobj) | |
| 653 (font-registry default) | |
| 654 "*")) | |
| 655 (encoding (or (font-encoding fontobj) | |
| 656 (font-encoding default) | |
| 657 "*"))) | |
| 658 (if (stringp family) | |
| 659 (setq family (list family))) | |
| 660 (setq weight (font-higher-weight weight | |
| 661 (and (font-bold-p fontobj) :bold))) | |
| 662 (if (stringp size) | |
| 663 (setq size (truncate (font-spatial-to-canonical size device)))) | |
| 664 (setq weight (or (cdr-safe (assq weight x-font-weight-mappings)) "*")) | |
| 665 (let ((done nil) ; Did we find a good font yet? | |
| 666 (font-name nil) ; font name we are currently checking | |
| 667 (cur-family nil) ; current family we are checking | |
| 668 ) | |
| 669 (while (and family (not done)) | |
| 670 (setq cur-family (car family) | |
| 671 family (cdr family)) | |
| 672 (if (assoc cur-family font-x-family-mappings) | |
| 673 ;; If the family name is an alias as defined by | |
| 674 ;; font-x-family-mappings, then append those families | |
| 675 ;; to the front of 'family' and continue in the loop. | |
| 676 (setq family (append | |
| 677 (cdr-safe (assoc cur-family | |
| 678 font-x-family-mappings)) | |
| 679 family)) | |
| 680 ;; Not an alias for a list of fonts, so we just check it. | |
| 681 ;; First, convert all '-' to spaces so that we don't screw up | |
| 682 ;; the oh-so wonderful X font model. Wheee. | |
| 683 (let ((x (length cur-family))) | |
| 684 (while (> x 0) | |
| 685 (if (= ?- (aref cur-family (1- x))) | |
| 686 (aset cur-family (1- x) ? )) | |
| 687 (setq x (1- x)))) | |
| 688 ;; We treat oblique and italic as equivalent. Don't ask. | |
| 689 (let ((slants '("o" "i"))) | |
| 690 (while (and slants (not done)) | |
| 691 (setq font-name (format "-*-%s-%s-%s-*-*-*-%s-*-*-*-*-%s-%s" | |
| 692 cur-family weight | |
| 693 (if (or (font-italic-p fontobj) | |
| 694 (font-oblique-p fontobj)) | |
| 695 (car slants) | |
| 696 "r") | |
| 697 (if size | |
| 698 (int-to-string (* 10 size)) "*") | |
| 699 registry | |
| 700 encoding | |
| 701 ) | |
| 702 slants (cdr slants) | |
| 703 done (try-font-name font-name device)))))) | |
| 704 (if done font-name))))) | |
| 705 | |
| 706 | |
| 3094 | 707 ;;; Cache building code |
| 708 ;;;###autoload | |
| 709 (defun x-font-build-cache (&optional device) | |
| 710 (let ((hash-table (make-hash-table :test 'equal :size 15)) | |
| 711 (fonts (mapcar 'x-font-create-object | |
| 712 (font-list "-*-*-*-*-*-*-*-*-*-*-*-*-*-*"))) | |
| 713 (plist nil) | |
| 714 (cur nil)) | |
| 715 (while fonts | |
| 716 (setq cur (car fonts) | |
| 717 fonts (cdr fonts) | |
| 718 plist (cl-gethash (car (font-family cur)) hash-table)) | |
| 719 (if (not (memq (font-weight cur) (plist-get plist 'weights))) | |
| 720 (setq plist (plist-put plist 'weights (cons (font-weight cur) | |
| 721 (plist-get plist 'weights))))) | |
| 722 (if (not (member (font-size cur) (plist-get plist 'sizes))) | |
| 723 (setq plist (plist-put plist 'sizes (cons (font-size cur) | |
| 724 (plist-get plist 'sizes))))) | |
| 725 (if (and (font-oblique-p cur) | |
| 726 (not (memq 'oblique (plist-get plist 'styles)))) | |
| 727 (setq plist (plist-put plist 'styles (cons 'oblique (plist-get plist 'styles))))) | |
| 728 (if (and (font-italic-p cur) | |
| 729 (not (memq 'italic (plist-get plist 'styles)))) | |
| 730 (setq plist (plist-put plist 'styles (cons 'italic (plist-get plist 'styles))))) | |
| 731 (cl-puthash (car (font-family cur)) plist hash-table)) | |
| 732 hash-table)) | |
| 733 | |
| 734 | |
| 735 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 736 ;;; The rendering engine-dependent code (Xft-style) | |
| 737 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 738 | |
| 739 ;;; #### FIXME actually, this section should be fc-*, right? | |
| 740 | |
| 741 (defvar font-xft-font-regexp | |
| 4099 | 742 (concat "\\`" |
| 743 #r"\(\\-\|\\:\|\\,\|[^:-]\)*" ; optional foundry and family | |
| 744 ; (allows for escaped colons, | |
| 745 ; dashes, commas) | |
| 746 "\\(-[0-9]*\\(\\.[0-9]*\\)?\\)?" ; optional size (points) | |
| 747 "\\(:[^:]*\\)*" ; optional properties | |
| 3094 | 748 ; not necessarily key=value!! |
| 749 "\\'" | |
| 4099 | 750 )) |
| 3094 | 751 |
| 752 (defvar font-xft-family-mappings | |
| 753 ;; #### FIXME this shouldn't be needed or used for Xft | |
| 754 '(("serif" . ("new century schoolbook" | |
| 755 "utopia" | |
| 756 "charter" | |
| 757 "times" | |
| 758 "lucidabright" | |
| 759 "garamond" | |
| 760 "palatino" | |
| 761 "times new roman" | |
| 762 "baskerville" | |
| 763 "bookman" | |
| 764 "bodoni" | |
| 765 "computer modern" | |
| 766 "rockwell" | |
| 767 )) | |
| 768 ("sans-serif" . ("lucida" | |
| 769 "helvetica" | |
| 770 "gills-sans" | |
| 771 "avant-garde" | |
| 772 "univers" | |
| 773 "optima")) | |
| 774 ("elfin" . ("tymes")) | |
| 775 ("monospace" . ("courier" | |
| 776 "fixed" | |
| 777 "lucidatypewriter" | |
| 778 "clean" | |
| 779 "terminal")) | |
| 780 ("cursive" . ("sirene" | |
| 781 "zapf chancery")) | |
| 782 ) | |
| 783 "A list of font family mappings on Xft devices.") | |
| 784 | |
| 785 (defun xft-font-create-object (fontname &optional device) | |
| 3360 | 786 "Return a font descriptor object for FONTNAME, appropriate for Xft. |
| 787 | |
| 788 Optional DEVICE defaults to `default-x-device'." | |
| 3094 | 789 (let* ((name fontname) |
| 790 (device (or device (default-x-device))) | |
| 3360 | 791 (pattern (fc-font-match device (fc-name-parse name))) |
| 3094 | 792 (font-obj (make-font)) |
| 793 (family (fc-pattern-get-family pattern 0)) | |
|
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794 (size (fc-pattern-get-or-compute-size pattern 0)) |
| 3094 | 795 (weight (fc-pattern-get-weight pattern 0))) |
| 796 (set-font-family font-obj | |
| 797 (and (not (equal family 'fc-result-no-match)) | |
| 798 family)) | |
| 799 (set-font-size font-obj | |
| 800 (and (not (equal size 'fc-result-no-match)) | |
| 801 size)) | |
| 802 (set-font-weight font-obj | |
| 803 (and (not (equal weight 'fc-result-no-match)) | |
| 804 (fc-font-weight-translate-from-constant weight))) | |
| 805 font-obj)) | |
| 806 | |
| 807 ;; #### FIXME Xft fonts are not defined by the device. | |
| 808 ;; ... Does that mean the whole model here is bogus? | |
| 809 (defun xft-font-families-for-device (&optional device no-resetp) | |
| 810 (ignore-errors (require 'x-font-menu)) ; #### FIXME xft-font-menu? | |
| 811 (or device (setq device (selected-device))) | |
| 812 (if (boundp 'device-fonts-cache) ; #### FIXME does this make sense? | |
| 813 (let ((menu (or (cdr-safe (assq device device-fonts-cache))))) | |
| 814 (if (and (not menu) (not no-resetp)) | |
| 815 (progn | |
| 816 (reset-device-font-menus device) | |
| 817 (xft-font-families-for-device device t)) | |
| 818 ;; #### FIXME clearly bogus for Xft | |
| 819 (let ((scaled (mapcar #'(lambda (x) (if x (aref x 0))) | |
| 820 (aref menu 0))) | |
| 821 (normal (mapcar #'(lambda (x) (if x (aref x 0))) | |
| 822 (aref menu 1)))) | |
|
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Aidan Kehoe <kehoea@parhasard.net>
parents:
4577
diff
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823 (sort (delete-duplicates (nconc scaled normal) :test #'equal) |
|
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Remove duplicate functions, chiefly #'delete-duplicates reimplementations.
Aidan Kehoe <kehoea@parhasard.net>
parents:
4577
diff
changeset
|
824 'string-lessp)))) |
| 3094 | 825 ;; #### FIXME clearly bogus for Xft |
| 826 (cons "monospace" (mapcar 'car font-xft-family-mappings)))) | |
| 827 | |
| 828 (defun xft-font-create-name (fontobj &optional device) | |
| 829 (let* ((pattern (make-fc-pattern))) | |
| 830 (if (font-family fontobj) | |
| 831 (fc-pattern-add-family pattern (font-family fontobj))) | |
| 832 (if (font-size fontobj) | |
| 833 (fc-pattern-add-size pattern (font-size fontobj))) | |
| 834 (fc-name-unparse pattern))) | |
| 835 | |
| 836 | |
| 428 | 837 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 838 ;;; The window-system dependent code (mswindows-style) | |
| 839 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 840 | |
| 841 (defconst mswindows-font-weight-mappings | |
| 872 | 842 '((:thin . "Thin") |
| 843 (:extra-light . "Extra Light") | |
| 428 | 844 (:light . "Light") |
| 872 | 845 (:demi-light . "Light") |
| 846 (:demi . "Light") | |
| 847 (:book . "Medium") | |
| 428 | 848 (:medium . "Medium") |
| 849 (:normal . "Normal") | |
| 872 | 850 (:demi-bold . "Demi Bold") |
| 428 | 851 (:bold . "Bold") |
| 852 (:regular . "Regular") | |
| 872 | 853 (:extra-bold . "Extra Bold") |
| 854 (:heavy . "Heavy")) | |
| 428 | 855 "An assoc list mapping keywords to actual mswindows specific strings |
| 856 for use in the 'weight' field of an mswindows font string.") | |
| 857 | |
| 858 (defvar font-mswindows-family-mappings | |
| 859 '( | |
| 860 ("serif" . ("times new roman" | |
| 861 "century schoolbook" | |
| 862 "book antiqua" | |
| 863 "bookman old style")) | |
| 864 ("sans-serif" . ("arial" | |
| 865 "verdana" | |
| 866 "lucida sans unicode")) | |
| 867 ("monospace" . ("courier new" | |
| 868 "lucida console" | |
| 869 "courier" | |
| 870 "terminal")) | |
| 871 ("cursive" . ("roman" | |
| 872 "script")) | |
| 873 ) | |
| 874 "A list of font family mappings on mswindows devices.") | |
| 875 | |
| 876 (defun mswindows-font-create-object (fontname &optional device) | |
| 707 | 877 "Return a font descriptor object for FONTNAME, appropriate for MS Windows devices." |
| 428 | 878 (let ((case-fold-search t) |
| 872 | 879 (font (declare-fboundp (mswindows-canonicalize-font-name fontname)))) |
| 428 | 880 (if (or (not (stringp font)) |
| 872 | 881 (not (string-match mswindows-font-regexp font))) |
| 428 | 882 (make-font) |
| 883 (let ((family (match-string 1 font)) | |
| 872 | 884 (style (match-string 2 font)) |
| 885 (pointsize (match-string 3 font)) | |
| 886 (effects (match-string 4 font)) | |
| 887 (charset (match-string 5 font)) | |
| 428 | 888 (retval nil) |
| 889 (size nil) | |
| 890 (case-fold-search t) | |
| 891 ) | |
| 872 | 892 (destructuring-bind (weight . slant) |
| 893 (mswindows-parse-font-style style) | |
| 894 (if (equal pointsize "") (setq pointsize nil)) | |
| 895 (if pointsize (setq size (concat pointsize "pt"))) | |
| 896 (if weight (setq weight | |
| 897 (intern-soft | |
| 898 (concat ":" (downcase (replace-in-string | |
| 899 weight " " "-")))))) | |
| 900 (setq retval (make-font :family family | |
| 901 :weight weight | |
| 902 :size size | |
| 903 :encoding charset)) | |
| 904 (set-font-bold-p retval (eq :bold weight)) | |
| 905 (cond | |
| 906 ((null slant) nil) | |
| 907 ((string-match "[iI]talic" slant) | |
| 908 (set-font-italic-p retval t))) | |
| 909 (cond | |
| 910 ((null effects) nil) | |
| 911 ((string-match "^[uU]nderline [sS]trikeout" effects) | |
| 912 (set-font-underline-p retval t) | |
| 913 (set-font-strikethru-p retval t)) | |
| 914 ((string-match "[uU]nderline" effects) | |
| 915 (set-font-underline-p retval t)) | |
| 916 ((string-match "[sS]trikeout" effects) | |
| 917 (set-font-strikethru-p retval t))) | |
| 918 retval))))) | |
| 428 | 919 |
| 920 (defun mswindows-font-create-name (fontobj &optional device) | |
| 707 | 921 "Return a font name constructed from FONTOBJ, appropriate for MS Windows devices." |
| 428 | 922 (if (and (not (or (font-family fontobj) |
| 923 (font-weight fontobj) | |
| 924 (font-size fontobj) | |
| 925 (font-registry fontobj) | |
| 926 (font-encoding fontobj))) | |
| 927 (= (font-style fontobj) 0)) | |
| 928 (face-font 'default) | |
| 929 (or device (setq device (selected-device))) | |
| 930 (let* ((default (font-default-object-for-device device)) | |
| 931 (family (or (font-family fontobj) | |
| 932 (font-family default))) | |
| 933 (weight (or (font-weight fontobj) :regular)) | |
| 3094 | 934 (size (or (font-size fontobj) |
| 428 | 935 (font-size default))) |
| 936 (underline-p (font-underline-p fontobj)) | |
| 937 (strikeout-p (font-strikethru-p fontobj)) | |
| 872 | 938 (encoding (font-encoding fontobj))) |
| 428 | 939 (if (stringp family) |
| 940 (setq family (list family))) | |
| 941 (setq weight (font-higher-weight weight | |
| 942 (and (font-bold-p fontobj) :bold))) | |
| 943 (if (stringp size) | |
| 944 (setq size (truncate (font-spatial-to-canonical size device)))) | |
| 945 (setq weight (or (cdr-safe | |
| 946 (assq weight mswindows-font-weight-mappings)) "")) | |
| 947 (let ((done nil) ; Did we find a good font yet? | |
| 948 (font-name nil) ; font name we are currently checking | |
| 949 (cur-family nil) ; current family we are checking | |
| 950 ) | |
| 951 (while (and family (not done)) | |
| 952 (setq cur-family (car family) | |
| 953 family (cdr family)) | |
| 954 (if (assoc cur-family font-mswindows-family-mappings) | |
| 955 ;; If the family name is an alias as defined by | |
| 956 ;; font-mswindows-family-mappings, then append those families | |
| 957 ;; to the front of 'family' and continue in the loop. | |
| 958 (setq family (append | |
| 959 (cdr-safe (assoc cur-family | |
| 960 font-mswindows-family-mappings)) | |
| 961 family)) | |
| 962 ;; We treat oblique and italic as equivalent. Don't ask. | |
| 963 ;; Courier New:Bold Italic:10:underline strikeout:western | |
| 872 | 964 (setq font-name (format "%s:%s:%s:%s:%s" |
| 965 cur-family | |
| 966 (mswindows-construct-font-style | |
| 967 weight | |
| 968 (if (font-italic-p fontobj) | |
| 969 "Italic" "")) | |
| 428 | 970 (if size |
| 971 (int-to-string size) "10") | |
| 972 (if underline-p | |
| 973 (if strikeout-p | |
| 974 "underline strikeout" | |
| 975 "underline") | |
| 976 (if strikeout-p "strikeout" "")) | |
| 977 (if encoding | |
| 978 encoding "")) | |
| 979 done (try-font-name font-name device)))) | |
| 980 (if done font-name))))) | |
| 981 | |
| 982 | |
| 983 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 984 ;;; Now overwrite the original copy of set-face-font with our own copy that | |
| 985 ;;; can deal with either syntax. | |
| 986 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 987 ;;; ###autoload | |
| 988 (defun font-set-face-font (&optional face font &rest args) | |
| 989 (cond | |
| 990 ((and (vectorp font) (= (length font) 12)) | |
| 991 (let ((font-name (font-create-name font))) | |
| 992 (set-face-property face 'font-specification font) | |
| 993 (cond | |
| 994 ((null font-name) ; No matching font! | |
| 995 nil) | |
| 996 ((listp font-name) ; For TTYs | |
| 997 (let (cur) | |
| 998 (while font-name | |
| 999 (setq cur (car font-name) | |
| 1000 font-name (cdr font-name)) | |
| 1001 (apply 'set-face-property face (car cur) (cdr cur) args)))) | |
| 3094 | 1002 (t |
| 428 | 1003 (apply 'set-face-font face font-name args) |
| 1004 (apply 'set-face-underline-p face (font-underline-p font) args) | |
| 1005 (if (and (or (font-smallcaps-p font) (font-bigcaps-p font)) | |
| 1006 (fboundp 'set-face-display-table)) | |
| 1007 (apply 'set-face-display-table | |
| 1008 face font-caps-display-table args)) | |
| 1009 (apply 'set-face-property face 'strikethru (or | |
| 1010 (font-linethrough-p font) | |
| 1011 (font-strikethru-p font)) | |
| 1012 args)) | |
| 3094 | 1013 ;;; this used to be default with preceding conditioned on font-running-xemacs |
| 1014 ; (t | |
| 1015 ; (condition-case nil | |
| 1016 ; (apply 'set-face-font face font-name args) | |
| 1017 ; (error | |
| 1018 ; (let ((args (car-safe args))) | |
| 1019 ; (and (or (font-bold-p font) | |
| 1020 ; (memq (font-weight font) '(:bold :demi-bold))) | |
| 1021 ; (make-face-bold face args t)) | |
| 1022 ; (and (font-italic-p font) (make-face-italic face args t))))) | |
| 1023 ; (apply 'set-face-underline-p face (font-underline-p font) args)) | |
| 1024 ))) | |
| 428 | 1025 (t |
| 1026 ;; Let the original set-face-font signal any errors | |
| 1027 (set-face-property face 'font-specification nil) | |
| 1028 (apply 'set-face-font face font args)))) | |
| 1029 | |
| 1030 | |
| 1031 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 1032 ;;; Now for emacsen specific stuff | |
| 1033 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 1034 (defun font-update-device-fonts (device) | |
| 1035 ;; Update all faces that were created with the 'font' package | |
| 1036 ;; to appear correctly on the new device. This should be in the | |
| 1037 ;; create-device-hook. This is XEmacs 19.12+ specific | |
| 1038 (let ((faces (face-list 2)) | |
| 1039 (cur nil) | |
| 1040 (font-spec nil)) | |
| 1041 (while faces | |
| 1042 (setq cur (car faces) | |
| 1043 faces (cdr faces) | |
| 1044 font-spec (face-property cur 'font-specification)) | |
| 1045 (if font-spec | |
| 1046 (set-face-font cur font-spec device))))) | |
| 1047 | |
| 1048 (defun font-update-one-face (face &optional device-list) | |
| 1049 ;; Update FACE on all devices in DEVICE-LIST | |
| 1050 ;; DEVICE_LIST defaults to a list of all active devices | |
| 1051 (setq device-list (or device-list (device-list))) | |
| 1052 (if (devicep device-list) | |
| 1053 (setq device-list (list device-list))) | |
| 1054 (let* ((cur-device nil) | |
| 502 | 1055 (font-spec (face-property face 'font-specification))) |
| 428 | 1056 (if (not font-spec) |
| 1057 ;; Hey! Don't mess with fonts we didn't create in the | |
| 1058 ;; first place. | |
| 1059 nil | |
| 1060 (while device-list | |
| 1061 (setq cur-device (car device-list) | |
| 1062 device-list (cdr device-list)) | |
| 1063 (if (not (device-live-p cur-device)) | |
| 1064 ;; Whoah! | |
| 1065 nil | |
| 1066 (if font-spec | |
| 1067 (set-face-font face font-spec cur-device))))))) | |
| 1068 | |
| 1069 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 1070 ;;; Various color related things | |
| 1071 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 1072 (cond | |
| 1073 ((fboundp 'display-warning) | |
| 1074 (fset 'font-warn 'display-warning)) | |
| 1075 ((fboundp 'w3-warn) | |
| 1076 (fset 'font-warn 'w3-warn)) | |
| 1077 ((fboundp 'url-warn) | |
| 1078 (fset 'font-warn 'url-warn)) | |
| 1079 ((fboundp 'warn) | |
| 1080 (defun font-warn (class message &optional level) | |
| 1081 (warn "(%s/%s) %s" class (or level 'warning) message))) | |
| 1082 (t | |
| 1083 (defun font-warn (class message &optional level) | |
| 1084 (save-excursion | |
| 1085 (set-buffer (get-buffer-create "*W3-WARNINGS*")) | |
| 1086 (goto-char (point-max)) | |
| 1087 (save-excursion | |
| 1088 (insert (format "(%s/%s) %s\n" class (or level 'warning) message))) | |
| 1089 (display-buffer (current-buffer)))))) | |
| 1090 | |
| 1091 (defun font-lookup-rgb-components (color) | |
| 1092 "Lookup COLOR (a color name) in rgb.txt and return a list of RGB values. | |
| 1093 The list (R G B) is returned, or an error is signaled if the lookup fails." | |
| 2527 | 1094 (let ((lib-list (if-boundp 'x-library-search-path |
| 428 | 1095 x-library-search-path |
| 1096 (list "/usr/X11R6/lib/X11/" | |
| 1097 "/usr/X11R5/lib/X11/" | |
| 1098 "/usr/lib/X11R6/X11/" | |
| 1099 "/usr/lib/X11R5/X11/" | |
| 1100 "/usr/local/X11R6/lib/X11/" | |
| 1101 "/usr/local/X11R5/lib/X11/" | |
| 1102 "/usr/local/lib/X11R6/X11/" | |
| 1103 "/usr/local/lib/X11R5/X11/" | |
| 1104 "/usr/X11/lib/X11/" | |
| 1105 "/usr/lib/X11/" | |
| 3125 | 1106 "/usr/share/X11/" |
| 428 | 1107 "/usr/local/lib/X11/" |
| 3125 | 1108 "/usr/local/share/X11/" |
| 428 | 1109 "/usr/X386/lib/X11/" |
| 1110 "/usr/x386/lib/X11/" | |
| 1111 "/usr/XFree86/lib/X11/" | |
| 1112 "/usr/unsupported/lib/X11/" | |
| 1113 "/usr/athena/lib/X11/" | |
| 1114 "/usr/local/x11r5/lib/X11/" | |
| 1115 "/usr/lpp/Xamples/lib/X11/" | |
| 1116 "/usr/openwin/lib/X11/" | |
| 1117 "/usr/openwin/share/lib/X11/"))) | |
| 1118 (file font-rgb-file) | |
| 1119 r g b) | |
| 1120 (if (not file) | |
| 1121 (while lib-list | |
| 1122 (setq file (expand-file-name "rgb.txt" (car lib-list))) | |
| 1123 (if (file-readable-p file) | |
| 1124 (setq lib-list nil | |
| 1125 font-rgb-file file) | |
| 1126 (setq lib-list (cdr lib-list) | |
| 1127 file nil)))) | |
| 1128 (if (null file) | |
| 1129 (list 0 0 0) | |
| 1130 (save-excursion | |
| 1131 (set-buffer (find-file-noselect file)) | |
| 1132 (if (not (= (aref (buffer-name) 0) ? )) | |
| 1133 (rename-buffer (generate-new-buffer-name " *rgb-tmp-buffer*"))) | |
| 1134 (save-excursion | |
| 1135 (save-restriction | |
| 1136 (widen) | |
| 1137 (goto-char (point-min)) | |
| 1138 (if (re-search-forward (format "\t%s$" (regexp-quote color)) nil t) | |
| 1139 (progn | |
| 1140 (beginning-of-line) | |
| 1141 (setq r (* (read (current-buffer)) 256) | |
| 1142 g (* (read (current-buffer)) 256) | |
| 1143 b (* (read (current-buffer)) 256))) | |
| 1144 (font-warn 'color (format "No such color: %s" color)) | |
| 1145 (setq r 0 | |
| 1146 g 0 | |
| 1147 b 0)) | |
| 1148 (list r g b) )))))) | |
| 1149 | |
| 1150 (defun font-hex-string-to-number (string) | |
| 1151 "Convert STRING to an integer by parsing it as a hexadecimal number." | |
| 1152 (let ((conv-list '((?0 . 0) (?a . 10) (?A . 10) | |
| 1153 (?1 . 1) (?b . 11) (?B . 11) | |
| 1154 (?2 . 2) (?c . 12) (?C . 12) | |
| 1155 (?3 . 3) (?d . 13) (?D . 13) | |
| 1156 (?4 . 4) (?e . 14) (?E . 14) | |
| 1157 (?5 . 5) (?f . 15) (?F . 15) | |
| 1158 (?6 . 6) | |
| 1159 (?7 . 7) | |
| 1160 (?8 . 8) | |
| 1161 (?9 . 9))) | |
| 1162 (n 0) | |
| 1163 (i 0) | |
| 1164 (lim (length string))) | |
| 1165 (while (< i lim) | |
| 1166 (setq n (+ (* n 16) (or (cdr (assq (aref string i) conv-list)) 0)) | |
| 1167 i (1+ i))) | |
| 1168 n )) | |
| 1169 | |
| 1170 (defun font-parse-rgb-components (color) | |
| 1171 "Parse RGB color specification and return a list of integers (R G B). | |
| 1172 #FEFEFE and rgb:fe/fe/fe style specifications are parsed." | |
| 1173 (let ((case-fold-search t) | |
| 1174 r g b str) | |
| 1175 (cond ((string-match "^#[0-9a-f]+$" color) | |
| 1176 (cond | |
| 1177 ((= (length color) 4) | |
| 1178 (setq r (font-hex-string-to-number (substring color 1 2)) | |
| 1179 g (font-hex-string-to-number (substring color 2 3)) | |
| 1180 b (font-hex-string-to-number (substring color 3 4)) | |
| 1181 r (* r 4096) | |
| 1182 g (* g 4096) | |
| 1183 b (* b 4096))) | |
| 1184 ((= (length color) 7) | |
| 1185 (setq r (font-hex-string-to-number (substring color 1 3)) | |
| 1186 g (font-hex-string-to-number (substring color 3 5)) | |
| 1187 b (font-hex-string-to-number (substring color 5 7)) | |
| 1188 r (* r 256) | |
| 1189 g (* g 256) | |
| 1190 b (* b 256))) | |
| 1191 ((= (length color) 10) | |
| 1192 (setq r (font-hex-string-to-number (substring color 1 4)) | |
| 1193 g (font-hex-string-to-number (substring color 4 7)) | |
| 1194 b (font-hex-string-to-number (substring color 7 10)) | |
| 1195 r (* r 16) | |
| 1196 g (* g 16) | |
| 1197 b (* b 16))) | |
| 1198 ((= (length color) 13) | |
| 1199 (setq r (font-hex-string-to-number (substring color 1 5)) | |
| 1200 g (font-hex-string-to-number (substring color 5 9)) | |
| 1201 b (font-hex-string-to-number (substring color 9 13)))) | |
| 1202 (t | |
| 1203 (font-warn 'color (format "Invalid RGB color specification: %s" | |
| 1204 color)) | |
| 1205 (setq r 0 | |
| 1206 g 0 | |
| 1207 b 0)))) | |
| 1208 ((string-match "rgb:\\([0-9a-f]+\\)/\\([0-9a-f]+\\)/\\([0-9a-f]+\\)" | |
| 1209 color) | |
| 1210 (if (or (> (- (match-end 1) (match-beginning 1)) 4) | |
| 1211 (> (- (match-end 2) (match-beginning 2)) 4) | |
| 1212 (> (- (match-end 3) (match-beginning 3)) 4)) | |
| 1213 (error "Invalid RGB color specification: %s" color) | |
| 1214 (setq str (match-string 1 color) | |
| 1215 r (* (font-hex-string-to-number str) | |
| 1216 (expt 16 (- 4 (length str)))) | |
| 1217 str (match-string 2 color) | |
| 1218 g (* (font-hex-string-to-number str) | |
| 1219 (expt 16 (- 4 (length str)))) | |
| 1220 str (match-string 3 color) | |
| 1221 b (* (font-hex-string-to-number str) | |
| 1222 (expt 16 (- 4 (length str))))))) | |
| 1223 (t | |
| 1224 (font-warn 'html (format "Invalid RGB color specification: %s" | |
| 1225 color)) | |
| 1226 (setq r 0 | |
| 1227 g 0 | |
| 1228 b 0))) | |
| 1229 (list r g b) )) | |
| 1230 | |
| 502 | 1231 (defun font-rgb-color-p (obj) |
| 428 | 1232 (or (and (vectorp obj) |
| 1233 (= (length obj) 4) | |
| 1234 (eq (aref obj 0) 'rgb)))) | |
| 1235 | |
| 502 | 1236 (defun font-rgb-color-red (obj) (aref obj 1)) |
| 1237 (defun font-rgb-color-green (obj) (aref obj 2)) | |
| 1238 (defun font-rgb-color-blue (obj) (aref obj 3)) | |
| 428 | 1239 |
| 1240 (defun font-color-rgb-components (color) | |
| 1241 "Return the RGB components of COLOR as a list of integers (R G B). | |
| 1242 16-bit values are always returned. | |
| 1243 #FEFEFE and rgb:fe/fe/fe style color specifications are parsed directly | |
| 1244 into their components. | |
| 1245 RGB values for color names are looked up in the rgb.txt file. | |
| 1246 The variable x-library-search-path is use to locate the rgb.txt file." | |
| 1247 (let ((case-fold-search t)) | |
| 1248 (cond | |
| 1249 ((and (font-rgb-color-p color) (floatp (aref color 1))) | |
| 1250 (list (* 65535 (aref color 0)) | |
| 1251 (* 65535 (aref color 1)) | |
| 1252 (* 65535 (aref color 2)))) | |
| 1253 ((font-rgb-color-p color) | |
| 1254 (list (font-rgb-color-red color) | |
| 1255 (font-rgb-color-green color) | |
| 1256 (font-rgb-color-blue color))) | |
| 1257 ((and (vectorp color) (= 3 (length color))) | |
| 1258 (list (aref color 0) (aref color 1) (aref color 2))) | |
| 1259 ((and (listp color) (= 3 (length color)) (floatp (car color))) | |
| 1260 (mapcar #'(lambda (x) (* x 65535)) color)) | |
| 1261 ((and (listp color) (= 3 (length color))) | |
| 1262 color) | |
| 1263 ((or (string-match "^#" color) | |
| 1264 (string-match "^rgb:" color)) | |
| 1265 (font-parse-rgb-components color)) | |
| 1266 ((string-match "\\([0-9.]+\\)[ \t]\\([0-9.]+\\)[ \t]\\([0-9.]+\\)" | |
| 1267 color) | |
| 1268 (let ((r (string-to-number (match-string 1 color))) | |
| 1269 (g (string-to-number (match-string 2 color))) | |
| 1270 (b (string-to-number (match-string 3 color)))) | |
| 1271 (if (floatp r) | |
| 1272 (setq r (round (* 255 r)) | |
| 1273 g (round (* 255 g)) | |
| 1274 b (round (* 255 b)))) | |
| 1275 (font-parse-rgb-components (format "#%02x%02x%02x" r g b)))) | |
| 1276 (t | |
| 1277 (font-lookup-rgb-components color))))) | |
| 1278 | |
| 502 | 1279 (defun font-tty-compute-color-delta (col1 col2) |
| 428 | 1280 (+ |
| 1281 (* (- (aref col1 0) (aref col2 0)) | |
| 1282 (- (aref col1 0) (aref col2 0))) | |
| 1283 (* (- (aref col1 1) (aref col2 1)) | |
| 1284 (- (aref col1 1) (aref col2 1))) | |
| 1285 (* (- (aref col1 2) (aref col2 2)) | |
| 1286 (- (aref col1 2) (aref col2 2))))) | |
| 1287 | |
| 1288 (defun font-tty-find-closest-color (r g b) | |
| 1289 ;; This is basically just a lisp copy of allocate_nearest_color | |
| 1290 ;; from objects-x.c from Emacs 19 | |
| 1291 ;; We really should just check tty-color-list, but unfortunately | |
| 1292 ;; that does not include any RGB information at all. | |
| 1293 ;; So for now we just hardwire in the default list and call it | |
| 1294 ;; good for now. | |
| 1295 (setq r (/ r 65535.0) | |
| 1296 g (/ g 65535.0) | |
| 1297 b (/ b 65535.0)) | |
| 1298 (let* ((color_def (vector r g b)) | |
| 1299 (colors [([1.0 1.0 1.0] . "white") | |
| 1300 ([0.0 1.0 1.0] . "cyan") | |
| 1301 ([1.0 0.0 1.0] . "magenta") | |
| 1302 ([0.0 0.0 1.0] . "blue") | |
| 1303 ([1.0 1.0 0.0] . "yellow") | |
| 1304 ([0.0 1.0 0.0] . "green") | |
| 1305 ([1.0 0.0 0.0] . "red") | |
| 1306 ([0.0 0.0 0.0] . "black")]) | |
| 1307 (no_cells (length colors)) | |
| 1308 (x 1) | |
| 1309 (nearest 0) | |
| 1310 (nearest_delta 0) | |
| 1311 (trial_delta 0)) | |
| 1312 (setq nearest_delta (font-tty-compute-color-delta (car (aref colors 0)) | |
| 1313 color_def)) | |
| 1314 (while (/= no_cells x) | |
| 1315 (setq trial_delta (font-tty-compute-color-delta (car (aref colors x)) | |
| 1316 color_def)) | |
| 1317 (if (< trial_delta nearest_delta) | |
| 1318 (setq nearest x | |
| 1319 nearest_delta trial_delta)) | |
| 1320 (setq x (1+ x))) | |
| 1321 (cdr-safe (aref colors nearest)))) | |
| 1322 | |
| 1323 (defun font-normalize-color (color &optional device) | |
| 1324 "Return an RGB tuple, given any form of input. If an error occurs, black | |
| 1325 is returned." | |
| 1326 (case (device-type device) | |
| 1327 ((x pm) | |
| 1328 (apply 'format "#%02x%02x%02x" (font-color-rgb-components color))) | |
| 1329 (mswindows | |
| 1330 (let* ((rgb (font-color-rgb-components color)) | |
| 1331 (color (apply 'format "#%02x%02x%02x" rgb))) | |
| 1332 (mswindows-define-rgb-color (nth 0 rgb) (nth 1 rgb) (nth 2 rgb) color) | |
| 1333 color)) | |
| 1334 (tty | |
| 1335 (apply 'font-tty-find-closest-color (font-color-rgb-components color))) | |
| 1336 (ns | |
| 502 | 1337 (let ((vals (mapcar #'(lambda (x) (lsh x -8)) |
| 428 | 1338 (font-color-rgb-components color)))) |
| 1339 (apply 'format "RGB%02x%02x%02xff" vals))) | |
| 1340 (otherwise | |
| 1341 color))) | |
| 1342 | |
| 1343 (defun font-set-face-background (&optional face color &rest args) | |
| 1344 (interactive) | |
| 1345 (condition-case nil | |
| 1346 (cond | |
| 1347 ((or (font-rgb-color-p color) | |
| 1348 (string-match "^#[0-9a-fA-F]+$" color)) | |
| 1349 (apply 'set-face-background face | |
| 1350 (font-normalize-color color) args)) | |
| 1351 (t | |
| 1352 (apply 'set-face-background face color args))) | |
| 1353 (error nil))) | |
| 1354 | |
| 1355 (defun font-set-face-foreground (&optional face color &rest args) | |
| 1356 (interactive) | |
| 1357 (condition-case nil | |
| 1358 (cond | |
| 1359 ((or (font-rgb-color-p color) | |
| 1360 (string-match "^#[0-9a-fA-F]+$" color)) | |
| 1361 (apply 'set-face-foreground face (font-normalize-color color) args)) | |
| 1362 (t | |
| 1363 (apply 'set-face-foreground face color args))) | |
| 1364 (error nil))) | |
| 1365 | |
| 1366 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 1367 ;;; Support for 'blinking' fonts | |
| 1368 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 1369 (defun font-map-windows (func &optional arg frame) | |
| 1370 (let* ((start (selected-window)) | |
| 1371 (cur start) | |
| 1372 (result nil)) | |
| 1373 (push (funcall func start arg) result) | |
| 1374 (while (not (eq start (setq cur (next-window cur)))) | |
| 1375 (push (funcall func cur arg) result)) | |
| 1376 result)) | |
| 1377 | |
| 1378 (defun font-face-visible-in-window-p (window face) | |
| 1379 (let ((st (window-start window)) | |
| 1380 (nd (window-end window)) | |
| 1381 (found nil) | |
| 1382 (face-at nil)) | |
| 1383 (setq face-at (get-text-property st 'face (window-buffer window))) | |
| 1384 (if (or (eq face face-at) (and (listp face-at) (memq face face-at))) | |
| 1385 (setq found t)) | |
| 1386 (while (and (not found) | |
| 1387 (/= nd | |
| 1388 (setq st (next-single-property-change | |
| 1389 st 'face | |
| 1390 (window-buffer window) nd)))) | |
| 1391 (setq face-at (get-text-property st 'face (window-buffer window))) | |
| 1392 (if (or (eq face face-at) (and (listp face-at) (memq face face-at))) | |
| 1393 (setq found t))) | |
| 1394 found)) | |
| 1395 | |
| 1396 (defun font-blink-callback () | |
| 1397 ;; Optimized to never invert the face unless one of the visible windows | |
| 1398 ;; is showing it. | |
| 3094 | 1399 (let ((faces (face-list t)) |
| 428 | 1400 (obj nil)) |
| 1401 (while faces | |
| 1402 (if (and (setq obj (face-property (car faces) 'font-specification)) | |
| 1403 (font-blink-p obj) | |
| 1404 (memq t | |
| 3094 | 1405 (font-map-windows 'font-face-visible-in-window-p |
| 1406 (car faces)))) | |
| 428 | 1407 (invert-face (car faces))) |
| 1408 (pop faces)))) | |
| 1409 | |
| 1410 (defcustom font-blink-interval 0.5 | |
| 1411 "How often to blink faces" | |
| 1412 :type 'number | |
| 1413 :group 'faces) | |
| 1414 | |
| 1415 (defun font-blink-initialize () | |
| 1416 (cond | |
| 1417 ((featurep 'itimer) | |
| 1418 (if (get-itimer "font-blinker") | |
| 1419 (delete-itimer (get-itimer "font-blinker"))) | |
| 1420 (start-itimer "font-blinker" 'font-blink-callback | |
| 1421 font-blink-interval | |
| 1422 font-blink-interval)) | |
| 1423 ((fboundp 'run-at-time) | |
| 1424 (cancel-function-timers 'font-blink-callback) | |
| 776 | 1425 (declare-fboundp (run-at-time font-blink-interval |
| 1426 font-blink-interval | |
| 1427 'font-blink-callback))) | |
| 428 | 1428 (t nil))) |
| 1429 | |
| 1430 (provide 'font) |