|
209
|
1 ;; x-font-menu.el --- Managing menus of X fonts.
|
|
|
2
|
|
|
3 ;; Copyright (C) 1994 Free Software Foundation, Inc.
|
|
|
4 ;; Copyright (C) 1995 Tinker Systems and INS Engineering Corp.
|
|
|
5 ;; Copyright (C) 1997 Sun Microsystems
|
|
|
6
|
|
|
7 ;; Author: Jamie Zawinski <jwz@netscape.com>
|
|
|
8 ;; Restructured by: Jonathan Stigelman <Stig@hackvan.com>
|
|
|
9 ;; Mule-ized by: Martin Buchholz
|
|
|
10
|
|
|
11 ;; This file is part of XEmacs.
|
|
|
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
|
|
|
15 ;; the Free Software Foundation; either version 2, or (at your option)
|
|
|
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.
|
|
|
22
|
|
|
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
|
|
|
25 ;; Free Software Foundation, 59 Temple Place - Suite 330,
|
|
|
26 ;; Boston, MA 02111-1307, USA.
|
|
|
27
|
|
|
28 ;;; Commentary:
|
|
|
29 ;;;
|
|
|
30 ;;; Creates three menus, "Font", "Size", and "Weight", and puts them on the
|
|
|
31 ;;; "Options" menu. The contents of these menus are the superset of those
|
|
|
32 ;;; properties available on any fonts, but only the intersection of the three
|
|
|
33 ;;; sets is selectable at one time.
|
|
|
34 ;;;
|
|
|
35 ;;; Known Problems:
|
|
|
36 ;;; ===============
|
|
|
37 ;;; Items on the Font menu are selectable if and only if that font exists in
|
|
|
38 ;;; the same size and weight as the current font. This means that some fonts
|
|
|
39 ;;; are simply not reachable from some other fonts - if only one font comes
|
|
|
40 ;;; in only one point size (like "Nil", which comes only in 2), you will never
|
|
|
41 ;;; be able to select it. It would be better if the items on the Fonts menu
|
|
|
42 ;;; were always selectable, and selecting them would set the size to be the
|
|
|
43 ;;; closest size to the current font's size.
|
|
|
44 ;;;
|
|
|
45 ;;; This attempts to change all other faces in an analagous way to the change
|
|
|
46 ;;; that was made to the default face; if it can't, it will skip over the face.
|
|
|
47 ;;; However, this could leave incongruous font sizes around, which may cause
|
|
|
48 ;;; some nonreversibility problems if further changes are made. Perhaps it
|
|
|
49 ;;; should remember the initial fonts of all faces, and derive all subsequent
|
|
|
50 ;;; fonts from that initial state.
|
|
|
51 ;;;
|
|
|
52 ;;; xfontsel(1) is a lot more flexible (but probably harder to understand).
|
|
|
53 ;;;
|
|
|
54 ;;; The code to construct menus from all of the x11 fonts available from the
|
|
|
55 ;;; server is autoloaded and executed the very first time that one of the Font
|
|
|
56 ;;; menus is selected on each device. That is, if XEmacs has frames on two
|
|
|
57 ;;; different devices, then separate font menu information will be maintained
|
|
|
58 ;;; for each X display. If the font path changes after emacs has already
|
|
|
59 ;;; asked the X server on a particular display for its list of fonts, this
|
|
|
60 ;;; won't notice. Also, the first time that a font menu is posted on each
|
|
|
61 ;;; display will entail a lengthy delay, but that's better than slowing down
|
|
|
62 ;;; XEmacs startup. At any time (i.e.: after a font-path change or
|
|
|
63 ;;; immediately after device creation), you can call
|
|
|
64 ;;; `reset-device-font-menus' to rebuild the menus from all currently
|
|
|
65 ;;; available fonts.
|
|
|
66 ;;;
|
|
|
67 ;;; There is knowledge here about the regexp match numbers in
|
|
|
68 ;;; `x-font-regexp' and `x-font-regexp-foundry-and-family' defined in
|
|
|
69 ;;; x-faces.el.
|
|
|
70 ;;;
|
|
|
71 ;;; There are at least three kinds of fonts under X11r5:
|
|
|
72 ;;;
|
|
|
73 ;;; - bitmap fonts, which can be assumed to look as good as possible;
|
|
|
74 ;;; - bitmap fonts which have been (or can be) automatically scaled to
|
|
|
75 ;;; a new size, and which almost always look awful;
|
|
|
76 ;;; - and true outline fonts, which should look ok at any size, but in
|
|
|
77 ;;; practice (on at least some systems) look awful at any size, and
|
|
|
78 ;;; even in theory are unlikely ever to look as good as non-scaled
|
|
|
79 ;;; bitmap fonts.
|
|
|
80 ;;;
|
|
|
81 ;;; It would be nice to get this code to look for non-scaled bitmap fonts
|
|
|
82 ;;; first, then outline fonts, then scaled bitmap fonts as a last resort.
|
|
|
83 ;;; But it's not clear to me how to tell them apart based on their truenames
|
|
|
84 ;;; and/or the result of XListFonts(). I welcome any and all explanations
|
|
|
85 ;;; of the subtleties involved...
|
|
|
86 ;;;
|
|
|
87 ;;;
|
|
|
88 ;;; If You Think You'Re Seeing A Bug:
|
|
|
89 ;;; =================================
|
|
|
90 ;;; When reporting problems, send the following information:
|
|
|
91 ;;;
|
|
|
92 ;;; - Exactly what behavior you're seeing;
|
|
|
93 ;;; - The output of the `xlsfonts' program;
|
|
|
94 ;;; - The value of the variable `device-fonts-cache';
|
|
|
95 ;;; - The values of the following expressions, both before and after
|
|
|
96 ;;; making a selection from any of the fonts-related menus:
|
|
|
97 ;;; (face-font 'default)
|
|
|
98 ;;; (font-truename (face-font 'default))
|
|
|
99 ;;; (font-properties (face-font 'default))
|
|
|
100 ;;; - The values of the following variables after making a selection:
|
|
|
101 ;;; font-menu-preferred-resolution
|
|
|
102 ;;; font-menu-registry-encoding
|
|
|
103 ;;;
|
|
|
104 ;;; There is a common misconception that "*-courier-medium-r-*-11-*", also
|
|
|
105 ;;; known as "-adobe-courier-medium-r-normal--11-80-100-100-m-60-iso8859-1",
|
|
|
106 ;;; is an 11-point font. It is not -- it is an 11-pixel font at 100dpi,
|
|
|
107 ;;; which is an 8-point font (the number after -11- is the size in tenths
|
|
|
108 ;;; of points). So if you expect to be seeing an "11" entry in the "Size"
|
|
|
109 ;;; menu and are not, this may be why.
|
|
|
110 ;;;
|
|
|
111 ;;; In the real world (aka Solaris), one has to deal with fonts that
|
|
|
112 ;;; appear to be medium-i but are really light-r, and fonts that
|
|
|
113 ;;; resolve to different resolutions depending on the charset:
|
|
|
114 ;;;
|
|
|
115 ;;; (font-instance-truename
|
|
|
116 ;;; (make-font-instance "-*-mincho-medium-i-normal-*-*-*-*-*-*-*-jisx0201*-*"))
|
|
|
117 ;;; ==>
|
|
|
118 ;;; "-morisawa-ryumin light kl-light-r-normal--10-100-72-72-m-50-jisx0201.1976-0"
|
|
|
119 ;;;
|
|
|
120 ;;; (list-fonts "-dt-interface user-medium-r-normal-s*-*-*-*-*-*-*-*-*")
|
|
|
121 ;;; ==>
|
|
|
122 ;;; ("-dt-interface user-medium-r-normal-s sans-12-120-72-72-m-70-iso8859-1"
|
|
|
123 ;;; "-dt-interface user-medium-r-normal-s-14-120-75-75-m-120-jisx0208.1983-0"
|
|
|
124 ;;; "-dt-interface user-medium-r-normal-s-14-120-75-75-m-60-jisx0201.1976-0")
|
|
|
125
|
|
|
126 ;;; Code:
|
|
|
127
|
|
|
128 ;; #### - implement these...
|
|
|
129 ;;
|
|
|
130 ;;; (defvar font-menu-ignore-proportional-fonts nil
|
|
|
131 ;;; "*If non-nil, then the font menu will only show fixed-width fonts.")
|
|
|
132
|
|
|
133 ;;;###autoload
|
|
|
134 (defcustom font-menu-ignore-scaled-fonts t
|
|
|
135 "*If non-nil, then the font menu will try to show only bitmap fonts."
|
|
|
136 :type 'boolean
|
|
|
137 :group 'x)
|
|
|
138
|
|
|
139 ;;;###autoload
|
|
|
140 (defcustom font-menu-this-frame-only-p nil
|
|
|
141 "*If non-nil, then changing the default font from the font menu will only
|
|
|
142 affect one frame instead of all frames."
|
|
|
143 :type 'boolean
|
|
|
144 :group 'x)
|
|
|
145
|
|
|
146 ;; only call XListFonts (and parse) once per device.
|
|
|
147 ;; ( (device . [parsed-list-fonts family-menu size-menu weight-menu]) ...)
|
|
|
148 (defvar device-fonts-cache nil)
|
|
|
149
|
|
|
150 (defvar font-menu-registry-encoding nil
|
|
|
151 "Registry and encoding to use with font menu fonts.")
|
|
|
152
|
|
|
153 (defvar font-menu-preferred-resolution "*-*"
|
|
|
154 "Preferred horizontal and vertical font menu resolution (e.g. \"75-75\").")
|
|
|
155
|
|
|
156 (defvar fonts-menu-junk-families
|
|
|
157 (purecopy
|
|
|
158 (mapconcat
|
|
|
159 #'identity
|
|
|
160 '("cursor" "glyph" "symbol" ; Obvious losers.
|
|
|
161 "\\`Ax...\\'" ; FrameMaker fonts - there are just way too
|
|
|
162 ; many of these, and there is a different
|
|
|
163 ; font family for each font face! Losers.
|
|
|
164 ; "Axcor" -> "Applix Courier Roman",
|
|
|
165 ; "Axcob" -> "Applix Courier Bold", etc.
|
|
|
166 )
|
|
|
167 "\\|"))
|
|
|
168 "A regexp matching font families which are uninteresting (e.g. cursor fonts).")
|
|
|
169
|
|
|
170 (eval-when-compile
|
|
|
171 (defsubst device-fonts-cache ()
|
|
|
172 (or (cdr (assq (selected-device) device-fonts-cache))
|
|
|
173 (reset-device-font-menus (selected-device)))))
|
|
|
174
|
|
|
175 (defun hack-font-truename (fn)
|
|
|
176 "Filter the output of `font-instance-truename' to deal with Japanese fontsets."
|
|
|
177 (if (string-match "," (font-instance-truename fn))
|
|
|
178 (let ((fpnt (nth 8 (split-string (font-instance-name fn) "-")))
|
|
|
179 (flist (split-string (font-instance-truename fn) ","))
|
|
|
180 ret)
|
|
|
181 (while flist
|
|
|
182 (if (string-equal fpnt (nth 8 (split-string (car flist) "-")))
|
|
|
183 (progn (setq ret (car flist)) (setq flist nil))
|
|
|
184 (setq flist (cdr flist))
|
|
|
185 ))
|
|
|
186 ret)
|
|
|
187 (font-instance-truename fn)))
|
|
|
188
|
|
|
189 ;;;###autoload
|
|
|
190 (fset 'install-font-menus 'reset-device-font-menus)
|
|
|
191 (make-obsolete 'install-font-menus 'reset-device-font-menus)
|
|
|
192
|
|
|
193 (defvar x-font-regexp-ascii nil
|
|
|
194 "This is used to filter out font families that can't display ASCII text.
|
|
|
195 It must be set at run-time.")
|
|
|
196
|
|
|
197 (defun vassoc (key valist)
|
|
|
198 "Search VALIST for a vector whose first element is equal to KEY.
|
|
|
199 See also `assoc'."
|
|
|
200 ;; by Stig@hackvan.com
|
|
|
201 (let (el)
|
|
|
202 (catch 'done
|
|
|
203 (while (setq el (pop valist))
|
|
|
204 (and (equal key (aref el 0))
|
|
|
205 (throw 'done el))))))
|
|
|
206
|
|
|
207 ;;;###autoload
|
|
|
208 (defun reset-device-font-menus (&optional device debug)
|
|
|
209 "Generates the `Font', `Size', and `Weight' submenus for the Options menu.
|
|
|
210 This is run the first time that a font-menu is needed for each device.
|
|
|
211 If you don't like the lazy invocation of this function, you can add it to
|
|
|
212 `create-device-hook' and that will make the font menus respond more quickly
|
|
|
213 when they are selected for the first time. If you add fonts to your system,
|
|
|
214 or if you change your font path, you can call this to re-initialize the menus."
|
|
|
215 ;; by Stig@hackvan.com
|
|
|
216 ;; #### - this should implement a `menus-only' option, which would
|
|
|
217 ;; recalculate the menus from the cache w/o having to do list-fonts again.
|
|
|
218 (message "Getting list of fonts from server... ")
|
|
|
219 (if (or noninteractive
|
|
|
220 (not (or device (setq device (selected-device))))
|
|
|
221 (not (eq (device-type device) 'x)))
|
|
|
222 nil
|
|
|
223 (unless x-font-regexp-ascii
|
|
|
224 (setq x-font-regexp-ascii (if (featurep 'mule)
|
|
|
225 (charset-registry 'ascii)
|
|
|
226 "iso8859-1")))
|
|
|
227 (setq font-menu-registry-encoding
|
|
|
228 (if (featurep 'mule) "*-*" "iso8859-1"))
|
|
|
229 (let ((case-fold-search t)
|
|
|
230 family size weight entry monospaced-p
|
|
|
231 dev-cache cache families sizes weights)
|
|
|
232 (dolist (name (cond ((null debug) ; debugging kludge
|
|
|
233 (list-fonts "*-*-*-*-*-*-*-*-*-*-*-*-*-*" device))
|
|
|
234 ((stringp debug) (split-string debug "\n"))
|
|
|
235 (t debug)))
|
|
|
236 (when (and (string-match x-font-regexp-ascii name)
|
|
|
237 (string-match x-font-regexp name))
|
|
|
238 (setq weight (capitalize (match-string 1 name))
|
|
|
239 size (string-to-int (match-string 6 name)))
|
|
|
240 (or (string-match x-font-regexp-foundry-and-family name)
|
|
|
241 (error "internal error"))
|
|
|
242 (setq family (capitalize (match-string 1 name)))
|
|
|
243 (or (string-match x-font-regexp-spacing name)
|
|
|
244 (error "internal error"))
|
|
|
245 (setq monospaced-p (string= "m" (match-string 1 name)))
|
|
|
246 (unless (string-match fonts-menu-junk-families family)
|
|
|
247 (setq entry (or (vassoc family cache)
|
|
|
248 (car (setq cache
|
|
|
249 (cons (vector family nil nil t)
|
|
|
250 cache)))))
|
|
|
251 (or (member family families) (push family families))
|
|
|
252 (or (member weight weights) (push weight weights))
|
|
|
253 (or (member size sizes) (push size sizes))
|
|
|
254 (or (member weight (aref entry 1)) (push weight (aref entry 1)))
|
|
|
255 (or (member size (aref entry 2)) (push size (aref entry 2)))
|
|
|
256 (aset entry 3 (and (aref entry 3) monospaced-p)))))
|
|
|
257 ;;
|
|
|
258 ;; Hack scalable fonts.
|
|
|
259 ;; Some fonts come only in scalable versions (the only size is 0)
|
|
|
260 ;; and some fonts come in both scalable and non-scalable versions
|
|
|
261 ;; (one size is 0). If there are any scalable fonts at all, make
|
|
|
262 ;; sure that the union of all point sizes contains at least some
|
|
|
263 ;; common sizes - it's possible that some sensible sizes might end
|
|
|
264 ;; up not getting mentioned explicitly.
|
|
|
265 ;;
|
|
|
266 (if (member 0 sizes)
|
|
|
267 (let ((common '(60 80 100 120 140 160 180 240)))
|
|
|
268 (while common
|
|
|
269 (or;;(member (car common) sizes) ; not enough slack
|
|
|
270 (let ((rest sizes)
|
|
|
271 (done nil))
|
|
|
272 (while (and (not done) rest)
|
|
|
273 (if (and (> (car common) (- (car rest) 5))
|
|
|
274 (< (car common) (+ (car rest) 5)))
|
|
|
275 (setq done t))
|
|
|
276 (setq rest (cdr rest)))
|
|
|
277 done)
|
|
|
278 (setq sizes (cons (car common) sizes)))
|
|
|
279 (setq common (cdr common)))
|
|
|
280 (setq sizes (delq 0 sizes))))
|
|
|
281
|
|
|
282 (setq families (sort families 'string-lessp)
|
|
|
283 weights (sort weights 'string-lessp)
|
|
|
284 sizes (sort sizes '<))
|
|
|
285
|
|
|
286 (dolist (entry cache)
|
|
|
287 (aset entry 1 (sort (aref entry 1) 'string-lessp))
|
|
|
288 (aset entry 2 (sort (aref entry 2) '<)))
|
|
|
289
|
|
|
290 (message "Getting list of fonts from server... done.")
|
|
|
291
|
|
|
292 (setq dev-cache (assq device device-fonts-cache))
|
|
|
293 (or dev-cache
|
|
|
294 (setq dev-cache (car (push (list device) device-fonts-cache))))
|
|
|
295 (setcdr
|
|
|
296 dev-cache
|
|
|
297 (vector
|
|
|
298 cache
|
|
|
299 (mapcar (lambda (x)
|
|
|
300 (vector x
|
|
|
301 (list 'font-menu-set-font x nil nil)
|
|
|
302 ':style 'radio ':active nil ':selected nil))
|
|
|
303 families)
|
|
|
304 (mapcar (lambda (x)
|
|
|
305 (vector (if (/= 0 (% x 10))
|
|
|
306 ;; works with no LISP_FLOAT_TYPE
|
|
|
307 (concat (int-to-string (/ x 10)) "."
|
|
|
308 (int-to-string (% x 10)))
|
|
|
309 (int-to-string (/ x 10)))
|
|
|
310 (list 'font-menu-set-font nil nil x)
|
|
|
311 ':style 'radio ':active nil ':selected nil))
|
|
|
312 sizes)
|
|
|
313 (mapcar (lambda (x)
|
|
|
314 (vector x
|
|
|
315 (list 'font-menu-set-font nil x nil)
|
|
|
316 ':style 'radio ':active nil ':selected nil))
|
|
|
317 weights)))
|
|
|
318 (cdr dev-cache))))
|
|
|
319
|
|
|
320 ;; Extract font information from a face. We examine both the
|
|
|
321 ;; user-specified font name and the canonical (`true') font name.
|
|
|
322 ;; These can appear to have totally different properties.
|
|
|
323 ;; For examples, see the prolog above.
|
|
|
324
|
|
|
325 ;; We use the user-specified one if possible, else use the truename.
|
|
|
326 ;; If the user didn't specify one (with "-dt-*-*", for example)
|
|
|
327 ;; get the truename and use the possibly suboptimal data from that.
|
|
|
328 (defun* font-menu-font-data (face dcache)
|
|
|
329 (let* ((case-fold-search t)
|
|
|
330 (domain (if font-menu-this-frame-only-p
|
|
|
331 (selected-frame)
|
|
|
332 (selected-device)))
|
|
|
333 (name (font-instance-name (face-font-instance face domain)))
|
|
|
334 (truename (font-instance-truename
|
|
|
335 (face-font-instance face domain
|
|
|
336 (if (featurep 'mule) 'ascii))))
|
|
|
337 family size weight entry slant)
|
|
|
338 (when (string-match x-font-regexp-foundry-and-family name)
|
|
|
339 (setq family (capitalize (match-string 1 name)))
|
|
|
340 (setq entry (vassoc family (aref dcache 0))))
|
|
|
341 (when (and (null entry)
|
|
|
342 (string-match x-font-regexp-foundry-and-family truename))
|
|
|
343 (setq family (capitalize (match-string 1 truename)))
|
|
|
344 (setq entry (vassoc family (aref dcache 0))))
|
|
|
345 (when (null entry)
|
|
|
346 (return-from font-menu-font-data (make-vector 5 nil)))
|
|
|
347
|
|
|
348 (when (string-match x-font-regexp name)
|
|
|
349 (setq weight (capitalize (match-string 1 name)))
|
|
|
350 (setq size (string-to-int (match-string 6 name))))
|
|
|
351
|
|
|
352 (when (string-match x-font-regexp truename)
|
|
|
353 (when (not (member weight (aref entry 1)))
|
|
|
354 (setq weight (capitalize (match-string 1 truename))))
|
|
|
355 (when (not (member size (aref entry 2)))
|
|
|
356 (setq size (string-to-int (match-string 6 truename))))
|
|
|
357 (setq slant (capitalize (match-string 2 truename))))
|
|
|
358
|
|
|
359 (vector entry family size weight slant)))
|
|
|
360
|
|
|
361 ;;;###autoload
|
|
|
362 (defun font-menu-family-constructor (ignored)
|
|
|
363 (catch 'menu
|
|
|
364 (unless (eq 'x (device-type (selected-device)))
|
|
|
365 (throw 'menu '(["Cannot parse current font" ding nil])))
|
|
|
366 (let* ((dcache (device-fonts-cache))
|
|
|
367 (font-data (font-menu-font-data 'default dcache))
|
|
|
368 (entry (aref font-data 0))
|
|
|
369 (family (aref font-data 1))
|
|
|
370 (size (aref font-data 2))
|
|
|
371 (weight (aref font-data 3))
|
|
|
372 f)
|
|
|
373 (unless family
|
|
|
374 (throw 'menu '(["Cannot parse current font" ding nil])))
|
|
|
375 ;; Items on the Font menu are enabled iff that font exists in
|
|
|
376 ;; the same size and weight as the current font (scalable fonts
|
|
|
377 ;; exist in every size). Only the current font is marked as
|
|
|
378 ;; selected.
|
|
|
379 (mapcar
|
|
|
380 (lambda (item)
|
|
|
381 (setq f (aref item 0)
|
|
|
382 entry (vassoc f (aref dcache 0)))
|
|
|
383 (if (and (member weight (aref entry 1))
|
|
|
384 (or (member size (aref entry 2))
|
|
|
385 (and (not font-menu-ignore-scaled-fonts)
|
|
|
386 (member 0 (aref entry 2)))))
|
|
|
387 (enable-menu-item item)
|
|
|
388 (disable-menu-item item))
|
|
|
389 (if (string-equal family f)
|
|
|
390 (select-toggle-menu-item item)
|
|
|
391 (deselect-toggle-menu-item item))
|
|
|
392 item)
|
|
|
393 (aref dcache 1)))))
|
|
|
394
|
|
|
395 ;;;###autoload
|
|
|
396 (defun font-menu-size-constructor (ignored)
|
|
|
397 (catch 'menu
|
|
|
398 (unless (eq 'x (device-type (selected-device)))
|
|
|
399 (throw 'menu '(["Cannot parse current font" ding nil])))
|
|
|
400 (let* ((dcache (device-fonts-cache))
|
|
|
401 (font-data (font-menu-font-data 'default dcache))
|
|
|
402 (entry (aref font-data 0))
|
|
|
403 (family (aref font-data 1))
|
|
|
404 (size (aref font-data 2))
|
|
|
405 ;;(weight (aref font-data 3))
|
|
|
406 s)
|
|
|
407 (unless family
|
|
|
408 (throw 'menu '(["Cannot parse current font" ding nil])))
|
|
|
409 ;; Items on the Size menu are enabled iff current font has
|
|
|
410 ;; that size. Only the size of the current font is selected.
|
|
|
411 ;; (If the current font comes in size 0, it is scalable, and
|
|
|
412 ;; thus has every size.)
|
|
|
413 (mapcar
|
|
|
414 (lambda (item)
|
|
|
415 (setq s (nth 3 (aref item 1)))
|
|
|
416 (if (or (member s (aref entry 2))
|
|
|
417 (and (not font-menu-ignore-scaled-fonts)
|
|
|
418 (member 0 (aref entry 2))))
|
|
|
419 (enable-menu-item item)
|
|
|
420 (disable-menu-item item))
|
|
|
421 (if (eq size s)
|
|
|
422 (select-toggle-menu-item item)
|
|
|
423 (deselect-toggle-menu-item item))
|
|
|
424 item)
|
|
|
425 (aref dcache 2)))))
|
|
|
426
|
|
|
427 ;;;###autoload
|
|
|
428 (defun font-menu-weight-constructor (ignored)
|
|
|
429 (catch 'menu
|
|
|
430 (unless (eq 'x (device-type (selected-device)))
|
|
|
431 (throw 'menu '(["Cannot parse current font" ding nil])))
|
|
|
432 (let* ((dcache (device-fonts-cache))
|
|
|
433 (font-data (font-menu-font-data 'default dcache))
|
|
|
434 (entry (aref font-data 0))
|
|
|
435 (family (aref font-data 1))
|
|
|
436 ;;(size (aref font-data 2))
|
|
|
437 (weight (aref font-data 3))
|
|
|
438 w)
|
|
|
439 (unless family
|
|
|
440 (throw 'menu '(["Cannot parse current font" ding nil])))
|
|
|
441 ;; Items on the Weight menu are enabled iff current font
|
|
|
442 ;; has that weight. Only the weight of the current font
|
|
|
443 ;; is selected.
|
|
|
444 (mapcar
|
|
|
445 (lambda (item)
|
|
|
446 (setq w (aref item 0))
|
|
|
447 (if (member w (aref entry 1))
|
|
|
448 (enable-menu-item item)
|
|
|
449 (disable-menu-item item))
|
|
|
450 (if (string-equal weight w)
|
|
|
451 (select-toggle-menu-item item)
|
|
|
452 (deselect-toggle-menu-item item))
|
|
|
453 item)
|
|
|
454 (aref dcache 3)))))
|
|
|
455
|
|
|
456
|
|
|
457 ;;; Changing font sizes
|
|
|
458
|
|
|
459 (defun font-menu-set-font (family weight size)
|
|
|
460 ;; This is what gets run when an item is selected from any of the three
|
|
|
461 ;; fonts menus. It needs to be rather clever.
|
|
|
462 ;; (size is measured in 10ths of points.)
|
|
|
463 (let* ((dcache (device-fonts-cache))
|
|
|
464 (font-data (font-menu-font-data 'default dcache))
|
|
|
465 (from-family (aref font-data 1))
|
|
|
466 (from-size (aref font-data 2))
|
|
|
467 (from-weight (aref font-data 3))
|
|
|
468 (from-slant (aref font-data 4))
|
|
|
469 new-default-face-font)
|
|
|
470 (unless from-family
|
|
|
471 (signal 'error '("couldn't parse font name for default face")))
|
|
|
472 (setq new-default-face-font
|
|
|
473 (font-menu-load-font (or family from-family)
|
|
|
474 (or weight from-weight)
|
|
|
475 (or size from-size)
|
|
|
476 from-slant
|
|
|
477 font-menu-preferred-resolution))
|
|
|
478 (dolist (face (delq 'default (face-list)))
|
|
|
479 (when (face-font-instance face)
|
|
|
480 (message "Changing font of `%s'..." face)
|
|
|
481 (condition-case c
|
|
|
482 (font-menu-change-face face
|
|
|
483 from-family from-weight from-size
|
|
|
484 family weight size)
|
|
|
485 (error
|
|
|
486 (display-error c nil)
|
|
|
487 (sit-for 1)))))
|
|
|
488 ;; Set the default face's font after hacking the other faces, so that
|
|
|
489 ;; the frame size doesn't change until we are all done.
|
|
|
490
|
|
|
491 ;;; WMP - we need to honor font-menu-this-frame-only-p here!
|
|
|
492 (set-face-font 'default new-default-face-font
|
|
|
493 (and font-menu-this-frame-only-p (selected-frame)))
|
|
|
494 (message "Font %s" (face-font-name 'default))))
|
|
|
495
|
|
|
496
|
|
|
497 (defun font-menu-change-face (face
|
|
|
498 from-family from-weight from-size
|
|
|
499 to-family to-weight to-size)
|
|
|
500 (or (symbolp face) (signal 'wrong-type-argument (list 'symbolp face)))
|
|
|
501 (let* ((dcache (device-fonts-cache))
|
|
|
502 (font-data (font-menu-font-data face dcache))
|
|
|
503 (face-family (aref font-data 1))
|
|
|
504 (face-size (aref font-data 2))
|
|
|
505 (face-weight (aref font-data 3))
|
|
|
506 (face-slant (aref font-data 4)))
|
|
|
507
|
|
|
508 (or face-family
|
|
|
509 (signal 'error (list "couldn't parse font name for face" face)))
|
|
|
510
|
|
|
511 ;; If this face matches the old default face in the attribute we
|
|
|
512 ;; are changing, then change it to the new attribute along that
|
|
|
513 ;; dimension. Also, the face must have its own global attribute.
|
|
|
514 ;; If its value is inherited, we don't touch it. If any of this
|
|
|
515 ;; is not true, we leave it alone.
|
|
|
516 (when (and (face-font face 'global)
|
|
|
517 (cond
|
|
|
518 (to-family (string-equal face-family from-family))
|
|
|
519 (to-weight (string-equal face-weight from-weight))
|
|
|
520 (to-size (= face-size from-size))))
|
|
|
521 (set-face-font face
|
|
|
522 (font-menu-load-font (or to-family face-family)
|
|
|
523 (or to-weight face-weight)
|
|
|
524 (or to-size face-size)
|
|
|
525 face-slant
|
|
|
526 font-menu-preferred-resolution)
|
|
|
527 (and font-menu-this-frame-only-p
|
|
|
528 (selected-frame))))))
|
|
|
529
|
|
|
530 (defun font-menu-load-font (family weight size slant resolution)
|
|
|
531 "Try to load a font with the requested properties.
|
|
|
532 The weight, slant and resolution are only hints."
|
|
|
533 (when (integerp size) (setq size (int-to-string size)))
|
|
|
534 (let (font)
|
|
|
535 (catch 'got-font
|
|
|
536 (dolist (weight (list weight "*"))
|
|
|
537 (dolist (slant
|
|
|
538 (cond ((string-equal slant "O") '("O" "I" "*"))
|
|
|
539 ((string-equal slant "I") '("I" "O" "*"))
|
|
|
540 ((string-equal slant "*") '("*"))
|
|
|
541 (t (list slant "*"))))
|
|
|
542 (dolist (resolution
|
|
|
543 (if (string-equal resolution "*-*")
|
|
|
544 (list resolution)
|
|
|
545 (list resolution "*-*")))
|
|
|
546 (when (setq font
|
|
|
547 (make-font-instance
|
|
|
548 (concat "-*-" family "-" weight "-" slant "-*-*-*-"
|
|
|
549 size "-" resolution "-*-*-"
|
|
|
550 font-menu-registry-encoding)
|
|
|
551 nil t))
|
|
|
552 (throw 'got-font font))))))))
|
|
|
553
|
|
|
554 (defun flush-device-fonts-cache (device)
|
|
|
555 ;; by Stig@hackvan.com
|
|
|
556 (let ((elt (assq device device-fonts-cache)))
|
|
|
557 (and elt
|
|
|
558 (setq device-fonts-cache (delq elt device-fonts-cache)))))
|
|
|
559
|
|
|
560 (add-hook 'delete-device-hook 'flush-device-fonts-cache)
|
|
|
561
|
|
|
562 (provide 'x-font-menu)
|
|
|
563
|
|
|
564 ;;; x-font-menu.el ends here
|
