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annotate lisp/msw-font-menu.el @ 5839:d139eb1fead8
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| author | Marcus Crestani <marcus@crestani.de> |
|---|---|
| date | Sat, 13 Dec 2014 14:09:33 +0100 |
| parents | cc6f0266bc36 |
| children | bbe4146603db |
| rev | line source |
|---|---|
| 398 | 1 ;; msw-font-menu.el --- Managing menus of mswindows fonts. |
| 2 | |
| 3 ;; Copyright (C) 1999 Free Software Foundation, Inc. | |
| 872 | 4 ;; Copyright (C) 2002 Ben Wing. |
| 398 | 5 |
| 6 ;; Adapted from x-font-menu.el by Andy Piper <andy@xemacs.org> | |
| 7 | |
| 8 ;; This file is part of XEmacs. | |
| 9 | |
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10 ;; XEmacs is free software: you can redistribute it and/or modify it |
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11 ;; under the terms of the GNU General Public License as published by the |
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12 ;; Free Software Foundation, either version 3 of the License, or (at your |
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13 ;; option) any later version. |
| 398 | 14 |
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15 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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16 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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17 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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18 ;; for more details. |
| 398 | 19 |
| 20 ;; You should have received a copy of the GNU General Public License | |
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21 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 398 | 22 |
| 872 | 23 ;;; Known Problems: |
| 24 ;;; =============== | |
| 25 ;;; There is knowledge here about the regexp match numbers in | |
| 26 ;;; `mswindows-font-regexp' and `mswindows-font-regexp-foundry-and-family' defined in | |
| 27 ;;; mswindows-faces.el. | |
| 28 ;;; | |
| 29 | |
| 398 | 30 ;;; mswindows fonts look like: |
| 31 ;;; fontname[:[weight][ style][:pointsize[:effects]]][:charset] | |
| 32 ;;; ie: | |
| 33 ;;; Lucida Console:Regular:10 | |
| 34 ;;; minimal: | |
| 35 ;;; Courier New | |
| 36 ;;; maximal: | |
| 37 ;;; Courier New:Bold Italic:10:underline strikeout:western | |
| 38 | |
| 39 ;;; Code: | |
| 40 | |
| 41 ;; #### - implement these... | |
| 42 ;; | |
| 43 ;;; (defvar font-menu-ignore-proportional-fonts nil | |
| 44 ;;; "*If non-nil, then the font menu will only show fixed-width fonts.") | |
| 45 | |
| 46 (require 'font-menu) | |
| 778 | 47 (globally-declare-boundp 'mswindows-font-regexp) |
| 398 | 48 |
| 4103 | 49 (globally-declare-fboundp |
| 50 '(mswindows-parse-font-style | |
| 51 mswindows-construct-font-style)) | |
| 52 | |
| 398 | 53 (defvar mswindows-font-menu-junk-families |
| 444 | 54 (mapconcat |
| 55 #'identity | |
| 56 '("Symbol" | |
| 57 ) | |
| 58 "\\|") | |
| 398 | 59 "A regexp matching font families which are uninteresting (e.g. cursor fonts).") |
| 60 | |
| 61 (defvar mswindows-font-regexp-ascii nil | |
| 62 "This is used to filter out font families that can't display ASCII text. | |
| 63 It must be set at run-time.") | |
| 64 | |
| 65 ;;;###autoload | |
| 66 (defun mswindows-reset-device-font-menus (device &optional debug) | |
| 67 "Generates the `Font', `Size', and `Weight' submenus for the Options menu. | |
| 68 This is run the first time that a font-menu is needed for each device. | |
| 69 If you don't like the lazy invocation of this function, you can add it to | |
| 70 `create-device-hook' and that will make the font menus respond more quickly | |
| 71 when they are selected for the first time. If you add fonts to your system, | |
| 72 or if you change your font path, you can call this to re-initialize the menus." | |
| 73 (unless mswindows-font-regexp-ascii | |
| 771 | 74 (setq mswindows-font-regexp-ascii "Western")) |
| 398 | 75 (let ((case-fold-search t) |
| 76 family size weight entry | |
| 77 dev-cache cache families sizes weights) | |
| 78 (dolist (name (cond ((null debug) ; debugging kludge | |
| 2527 | 79 (font-list "::::" device)) |
| 398 | 80 ((stringp debug) (split-string debug "\n")) |
| 81 (t debug))) | |
| 82 (when (and (string-match mswindows-font-regexp-ascii name) | |
| 83 (string-match mswindows-font-regexp name)) | |
| 872 | 84 (setq weight (capitalize (car (mswindows-parse-font-style |
| 85 (match-string 2 name)))) | |
| 86 size (string-to-int (match-string 3 name)) | |
| 398 | 87 family (match-string 1 name)) |
| 88 (unless (string-match mswindows-font-menu-junk-families family) | |
| 89 (setq entry (or (vassoc name cache) | |
| 90 (car (setq cache | |
| 91 (cons (vector family nil nil t) | |
| 92 cache))))) | |
| 93 (or (member family families) (push family families)) | |
| 94 (or (member weight weights) (push weight weights)) | |
| 95 (or (member size sizes) (push size sizes)) | |
| 96 (or (member weight (aref entry 1)) (push weight (aref entry 1))) | |
| 97 (or (member size (aref entry 2)) (push size (aref entry 2)))))) | |
| 98 ;; | |
| 99 ;; Hack scalable fonts. | |
| 100 ;; Some fonts come only in scalable versions (the only size is 0) | |
| 101 ;; and some fonts come in both scalable and non-scalable versions | |
| 102 ;; (one size is 0). If there are any scalable fonts at all, make | |
| 103 ;; sure that the union of all point sizes contains at least some | |
| 104 ;; common sizes - it's possible that some sensible sizes might end | |
| 105 ;; up not getting mentioned explicitly. | |
| 106 ;; | |
| 107 (if (member 0 sizes) | |
| 108 (let ((common '(6 8 10 12 14 16 18 24))) | |
| 109 (while common | |
| 110 (or;;(member (car common) sizes) ; not enough slack | |
| 111 (let ((rest sizes) | |
| 112 (done nil)) | |
| 113 (while (and (not done) rest) | |
| 114 (if (and (> (car common) (- (car rest) 1)) | |
| 115 (< (car common) (+ (car rest) 1))) | |
| 116 (setq done t)) | |
| 117 (setq rest (cdr rest))) | |
| 118 done) | |
| 119 (setq sizes (cons (car common) sizes))) | |
| 120 (setq common (cdr common))) | |
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121 (setq sizes (delete* 0 sizes)))) |
| 398 | 122 |
| 123 (setq families (sort families 'string-lessp) | |
| 124 weights (sort weights 'string-lessp) | |
| 125 sizes (sort sizes '<)) | |
| 126 | |
| 127 (dolist (entry cache) | |
| 128 (aset entry 1 (sort (aref entry 1) 'string-lessp)) | |
| 129 (aset entry 2 (sort (aref entry 2) '<))) | |
| 130 | |
| 131 (setq dev-cache (assq device device-fonts-cache)) | |
| 132 (or dev-cache | |
| 133 (setq dev-cache (car (push (list device) device-fonts-cache)))) | |
| 134 (setcdr | |
| 135 dev-cache | |
| 136 (vector | |
| 137 cache | |
| 138 (mapcar (lambda (x) | |
| 139 (vector x | |
| 140 (list 'font-menu-set-font x nil nil) | |
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141 :style 'radio :active nil :selected nil)) |
| 398 | 142 families) |
| 143 (mapcar (lambda (x) | |
| 144 (vector (int-to-string x) | |
| 145 (list 'font-menu-set-font nil nil x) | |
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146 :style 'radio :active nil :selected nil)) |
| 398 | 147 sizes) |
| 148 (mapcar (lambda (x) | |
| 149 (vector x | |
| 150 (list 'font-menu-set-font nil x nil) | |
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151 :style 'radio :active nil :selected nil)) |
| 398 | 152 weights))) |
| 153 (cdr dev-cache))) | |
| 154 | |
| 155 ;; Extract font information from a face. We examine both the | |
| 156 ;; user-specified font name and the canonical (`true') font name. | |
| 157 ;; These can appear to have totally different properties. | |
| 158 | |
| 159 ;; We use the user-specified one if possible, else use the truename. | |
| 160 ;; If the user didn't specify one get the truename and use the | |
| 161 ;; possibly suboptimal data from that. | |
| 162 ;;;###autoload | |
| 163 (defun* mswindows-font-menu-font-data (face dcache) | |
| 164 (let* ((case-fold-search t) | |
| 165 (domain (if font-menu-this-frame-only-p | |
| 166 (selected-frame) | |
| 167 (selected-device))) | |
| 168 (name (font-instance-name (face-font-instance face domain))) | |
| 169 (truename (font-instance-truename | |
| 170 (face-font-instance face domain | |
| 171 (if (featurep 'mule) 'ascii)))) | |
| 172 family size weight entry slant) | |
| 173 (when (string-match mswindows-font-regexp name) | |
| 174 (setq family (match-string 1 name)) | |
| 175 (setq entry (vassoc family (aref dcache 0)))) | |
| 176 (when (and (null entry) | |
| 177 (string-match mswindows-font-regexp truename)) | |
| 178 (setq family (match-string 1 truename)) | |
| 179 (setq entry (vassoc family (aref dcache 0)))) | |
| 180 (when (null entry) | |
| 181 (return-from mswindows-font-menu-font-data (make-vector 5 nil))) | |
| 182 | |
| 183 (when (string-match mswindows-font-regexp name) | |
| 872 | 184 (setq weight (car (mswindows-parse-font-style (match-string 2 name)))) |
| 185 (setq size (string-to-int (match-string 3 name)))) | |
| 398 | 186 |
| 187 (when (string-match mswindows-font-regexp truename) | |
| 872 | 188 (destructuring-bind (newweight . slant) |
| 189 (mswindows-parse-font-style (match-string 2 truename)) | |
| 190 (when (not (member weight (aref entry 1))) | |
| 191 (setq weight newweight)) | |
| 192 (when (not (member size (aref entry 2))) | |
| 193 (setq size (string-to-int (match-string 3 truename)))))) | |
| 398 | 194 |
| 195 (vector entry family size weight slant))) | |
| 196 | |
| 197 (defun mswindows-font-menu-load-font (family weight size slant resolution) | |
| 198 "Try to load a font with the requested properties. | |
| 199 The weight, slant and resolution are only hints." | |
| 200 (when (integerp size) (setq size (int-to-string size))) | |
| 201 (let (font) | |
| 202 (catch 'got-font | |
| 203 (dolist (weight (list weight "")) | |
| 204 (dolist (slant | |
| 205 ;; oblique is not currently implemented | |
| 872 | 206 (cond ((string-equal slant "Oblique") '("Italic" "")) |
| 207 ((string-equal slant "Italic") '("Italic" "")) | |
| 398 | 208 (t (list slant "")))) |
| 209 (when (setq font | |
| 210 (make-font-instance | |
| 872 | 211 (concat |
| 212 family ":" | |
| 213 (mswindows-construct-font-style weight slant) ":" | |
| 214 size "::") | |
| 398 | 215 nil t)) |
| 216 (throw 'got-font font))))))) | |
| 217 | |
| 218 (provide 'mswindows-font-menu) | |
| 219 | |
| 220 ;;; msw-font-menu.el ends here |