Mercurial > hg > xemacs-beta

comparison lisp/gtk-font-menu.el @ 462:0784d089fdc9 r21-2-46

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Import from CVS: tag r21-2-46
author cvs
date Mon, 13 Aug 2007 11:44:37 +0200
parents
children 7039e6323819
comparison
equal deleted inserted replaced
461:120ed4009e51 462:0784d089fdc9
1 ;; gtk-font-menu.el --- Managing menus of GTK 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@jwz.org>
8 ;; Restructured by: Jonathan Stigelman <Stig@hackvan.com>
9 ;; Mule-ized by: Martin Buchholz
10 ;; More restructuring for MS-Windows by Andy Piper <andy@xemacs.org>
11 ;; GTK-ized by: William Perry <wmperry@xemacs.org>
12
13 ;; This file is part of XEmacs.
14
15 ;; XEmacs is free software; you can redistribute it and/or modify it
16 ;; under the terms of the GNU General Public License as published by
17 ;; the Free Software Foundation; either version 2, or (at your option)
18 ;; any later version.
19
20 ;; XEmacs is distributed in the hope that it will be useful, but
21 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 ;; General Public License for more details.
24
25 ;; You should have received a copy of the GNU General Public License
26 ;; along with XEmacs; see the file COPYING. If not, write to the
27 ;; Free Software Foundation, 59 Temple Place - Suite 330,
28 ;; Boston, MA 02111-1307, USA.
29 ;;; Code:
30
31 ;; #### - implement these...
32 ;;
33 ;;; (defvar font-menu-ignore-proportional-fonts nil
34 ;;; "*If non-nil, then the font menu will only show fixed-width fonts.")
35
36 (require 'font-menu)
37
38 (defvar gtk-font-menu-registry-encoding nil
39 "Registry and encoding to use with font menu fonts.")
40
41 (defvar gtk-fonts-menu-junk-families
42 (mapconcat
43 #'identity
44 '("cursor" "glyph" "symbol" ; Obvious losers.
45 "\\`Ax...\\'" ; FrameMaker fonts - there are just way too
46 ; many of these, and there is a different
47 ; font family for each font face! Losers.
48 ; "Axcor" -> "Applix Courier Roman",
49 ; "Axcob" -> "Applix Courier Bold", etc.
50 )
51 "\\|")
52 "A regexp matching font families which are uninteresting (e.g. cursor fonts).")
53
54 (defun hack-font-truename (fn)
55 "Filter the output of `font-instance-truename' to deal with Japanese fontsets."
56 (if (string-match "," (font-instance-truename fn))
57 (let ((fpnt (nth 8 (split-string (font-instance-name fn) "-")))
58 (flist (split-string (font-instance-truename fn) ","))
59 ret)
60 (while flist
61 (if (string-equal fpnt (nth 8 (split-string (car flist) "-")))
62 (progn (setq ret (car flist)) (setq flist nil))
63 (setq flist (cdr flist))
64 ))
65 ret)
66 (font-instance-truename fn)))
67
68 (defvar gtk-font-regexp-ascii nil
69 "This is used to filter out font families that can't display ASCII text.
70 It must be set at run-time.")
71
72 ;;;###autoload
73 (defun gtk-reset-device-font-menus (device &optional debug)
74 "Generates the `Font', `Size', and `Weight' submenus for the Options menu.
75 This is run the first time that a font-menu is needed for each device.
76 If you don't like the lazy invocation of this function, you can add it to
77 `create-device-hook' and that will make the font menus respond more quickly
78 when they are selected for the first time. If you add fonts to your system,
79 or if you change your font path, you can call this to re-initialize the menus."
80 ;; by Stig@hackvan.com
81 ;; #### - this should implement a `menus-only' option, which would
82 ;; recalculate the menus from the cache w/o having to do list-fonts again.
83 (unless gtk-font-regexp-ascii
84 (setq gtk-font-regexp-ascii (if (featurep 'mule)
85 (charset-registry 'ascii)
86 "iso8859-1")))
87 (setq gtk-font-menu-registry-encoding
88 (if (featurep 'mule) "*-*" "iso8859-1"))
89 (let ((case-fold-search t)
90 family size weight entry monospaced-p
91 dev-cache cache families sizes weights)
92 (dolist (name (cond ((null debug) ; debugging kludge
93 (list-fonts "*-*-*-*-*-*-*-*-*-*-*-*-*-*" device))
94 ((stringp debug) (split-string debug "\n"))
95 (t debug)))
96 (when (and (string-match gtk-font-regexp-ascii name)
97 (string-match gtk-font-regexp name))
98 (setq weight (capitalize (match-string 1 name))
99 size (string-to-int (match-string 6 name)))
100 (or (string-match gtk-font-regexp-foundry-and-family name)
101 (error "internal error"))
102 (setq family (capitalize (match-string 1 name)))
103 (or (string-match gtk-font-regexp-spacing name)
104 (error "internal error"))
105 (setq monospaced-p (string= "m" (match-string 1 name)))
106 (unless (string-match gtk-fonts-menu-junk-families family)
107 (setq entry (or (vassoc family cache)
108 (car (setq cache
109 (cons (vector family nil nil t)
110 cache)))))
111 (or (member family families) (push family families))
112 (or (member weight weights) (push weight weights))
113 (or (member size sizes) (push size sizes))
114 (or (member weight (aref entry 1)) (push weight (aref entry 1)))
115 (or (member size (aref entry 2)) (push size (aref entry 2)))
116 (aset entry 3 (and (aref entry 3) monospaced-p)))))
117 ;;
118 ;; Hack scalable fonts.
119 ;; Some fonts come only in scalable versions (the only size is 0)
120 ;; and some fonts come in both scalable and non-scalable versions
121 ;; (one size is 0). If there are any scalable fonts at all, make
122 ;; sure that the union of all point sizes contains at least some
123 ;; common sizes - it's possible that some sensible sizes might end
124 ;; up not getting mentioned explicitly.
125 ;;
126 (if (member 0 sizes)
127 (let ((common '(60 80 100 120 140 160 180 240)))
128 (while common
129 (or;;(member (car common) sizes) ; not enough slack
130 (let ((rest sizes)
131 (done nil))
132 (while (and (not done) rest)
133 (if (and (> (car common) (- (car rest) 5))
134 (< (car common) (+ (car rest) 5)))
135 (setq done t))
136 (setq rest (cdr rest)))
137 done)
138 (setq sizes (cons (car common) sizes)))
139 (setq common (cdr common)))
140 (setq sizes (delq 0 sizes))))
141
142 (setq families (sort families 'string-lessp)
143 weights (sort weights 'string-lessp)
144 sizes (sort sizes '<))
145
146 (dolist (entry cache)
147 (aset entry 1 (sort (aref entry 1) 'string-lessp))
148 (aset entry 2 (sort (aref entry 2) '<)))
149
150 (setq dev-cache (assq device device-fonts-cache))
151 (or dev-cache
152 (setq dev-cache (car (push (list device) device-fonts-cache))))
153 (setcdr
154 dev-cache
155 (vector
156 cache
157 (mapcar (lambda (x)
158 (vector x
159 (list 'font-menu-set-font x nil nil)
160 ':style 'radio ':active nil ':selected nil))
161 families)
162 (mapcar (lambda (x)
163 (vector (if (/= 0 (% x 10))
164 ;; works with no LISP_FLOAT_TYPE
165 (concat (int-to-string (/ x 10)) "."
166 (int-to-string (% x 10)))
167 (int-to-string (/ x 10)))
168 (list 'font-menu-set-font nil nil x)
169 ':style 'radio ':active nil ':selected nil))
170 sizes)
171 (mapcar (lambda (x)
172 (vector x
173 (list 'font-menu-set-font nil x nil)
174 ':style 'radio ':active nil ':selected nil))
175 weights)))
176 (cdr dev-cache)))
177
178 ;; Extract font information from a face. We examine both the
179 ;; user-specified font name and the canonical (`true') font name.
180 ;; These can appear to have totally different properties.
181 ;; For examples, see the prolog above.
182
183 ;; We use the user-specified one if possible, else use the truename.
184 ;; If the user didn't specify one (with "-dt-*-*", for example)
185 ;; get the truename and use the possibly suboptimal data from that.
186 ;;;###autoload
187 (defun* gtk-font-menu-font-data (face dcache)
188 (defvar gtk-font-regexp)
189 (defvar gtk-font-regexp-foundry-and-family)
190 (let* ((case-fold-search t)
191 (domain (if font-menu-this-frame-only-p
192 (selected-frame)
193 (selected-device)))
194 (name (font-instance-name (face-font-instance face domain)))
195 (truename (font-instance-truename
196 (face-font-instance face domain
197 (if (featurep 'mule) 'ascii))))
198 family size weight entry slant)
199 (when (string-match gtk-font-regexp-foundry-and-family name)
200 (setq family (capitalize (match-string 1 name)))
201 (setq entry (vassoc family (aref dcache 0))))
202 (when (and (null entry)
203 (string-match gtk-font-regexp-foundry-and-family truename))
204 (setq family (capitalize (match-string 1 truename)))
205 (setq entry (vassoc family (aref dcache 0))))
206 (when (null entry)
207 (return-from gtk-font-menu-font-data (make-vector 5 nil)))
208
209 (when (string-match gtk-font-regexp name)
210 (setq weight (capitalize (match-string 1 name)))
211 (setq size (string-to-int (match-string 6 name))))
212
213 (when (string-match gtk-font-regexp truename)
214 (when (not (member weight (aref entry 1)))
215 (setq weight (capitalize (match-string 1 truename))))
216 (when (not (member size (aref entry 2)))
217 (setq size (string-to-int (match-string 6 truename))))
218 (setq slant (capitalize (match-string 2 truename))))
219
220 (vector entry family size weight slant)))
221
222 (defun gtk-font-menu-load-font (family weight size slant resolution)
223 "Try to load a font with the requested properties.
224 The weight, slant and resolution are only hints."
225 (when (integerp size) (setq size (int-to-string size)))
226 (let (font)
227 (catch 'got-font
228 (dolist (weight (list weight "*"))
229 (dolist (slant
230 (cond ((string-equal slant "O") '("O" "I" "*"))
231 ((string-equal slant "I") '("I" "O" "*"))
232 ((string-equal slant "*") '("*"))
233 (t (list slant "*"))))
234 (dolist (resolution
235 (if (string-equal resolution "*-*")
236 (list resolution)
237 (list resolution "*-*")))
238 (when (setq font
239 (make-font-instance
240 (concat "-*-" family "-" weight "-" slant "-*-*-*-"
241 size "-" resolution "-*-*-"
242 gtk-font-menu-registry-encoding)
243 nil t))
244 (throw 'got-font font))))))))
245
246 (provide 'gtk-font-menu)
247
248 ;;; gtk-font-menu.el ends here