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2297
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1 ;;; x-font-menu.el --- Managing menus of X fonts.
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428
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2
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3 ;; Copyright (C) 1994 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995 Tinker Systems and INS Engineering Corp.
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5 ;; Copyright (C) 1997 Sun Microsystems
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6
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7 ;; Author: Jamie Zawinski <jwz@jwz.org>
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8 ;; Restructured by: Jonathan Stigelman <Stig@hackvan.com>
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9 ;; Mule-ized by: Martin Buchholz
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10 ;; More restructuring for MS-Windows by Andy Piper <andy@xemacs.org>
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11
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12 ;; This file is part of XEmacs.
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13
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14 ;; XEmacs is free software; you can redistribute it and/or modify it
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15 ;; under the terms of the GNU General Public License as published by
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16 ;; the Free Software Foundation; either version 2, or (at your option)
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17 ;; any later version.
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18
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19 ;; XEmacs is distributed in the hope that it will be useful, but
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20 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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22 ;; General Public License for more details.
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23
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24 ;; You should have received a copy of the GNU General Public License
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25 ;; along with XEmacs; see the file COPYING. If not, write to the
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26 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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27 ;; Boston, MA 02111-1307, USA.
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28 ;;; Code:
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29
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30 ;; #### - implement these...
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31 ;;
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32 ;;; (defvar font-menu-ignore-proportional-fonts nil
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33 ;;; "*If non-nil, then the font menu will only show fixed-width fonts.")
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34
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35 (require 'font-menu)
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36
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3094
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37 (when (featurep 'xft-fonts)
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38 (require 'xft)
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39 (require 'fontconfig))
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40
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502
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41 (globally-declare-boundp
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42 '(x-font-regexp
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43 x-font-regexp-foundry-and-family
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44 x-font-regexp-spacing))
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502
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45
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46 (globally-declare-fboundp
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47 '(charset-registry))
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48
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428
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49 (defvar x-font-menu-registry-encoding nil
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50 "Registry and encoding to use with font menu fonts.")
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51
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52 (defvar x-fonts-menu-junk-families
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444
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53 (mapconcat
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54 #'identity
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55 '("cursor" "glyph" "symbol" ; Obvious losers.
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56 "\\`Ax...\\'" ; FrameMaker fonts - there are just way too
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428
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57 ; many of these, and there is a different
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58 ; font family for each font face! Losers.
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59 ; "Axcor" -> "Applix Courier Roman",
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60 ; "Axcob" -> "Applix Courier Bold", etc.
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444
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61 )
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62 "\\|")
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2297
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63 "Regexp matching font families which should not be menu-selectable.
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64 E.g. cursor fonts.")
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428
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65
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66 (defun hack-font-truename (fn)
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2297
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67 ;; #### Are "font sets" XFontSets?
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68 ;; #### Is this useful if not configure'd --with-xfs?
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69 ;; #### This is duplicated in gtk-font-menu.el.
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70 "Filter the output of `font-instance-truename' to deal with font sets."
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428
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71 (if (string-match "," (font-instance-truename fn))
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72 (let ((fpnt (nth 8 (split-string (font-instance-name fn) "-")))
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73 (flist (split-string (font-instance-truename fn) ","))
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74 ret)
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75 (while flist
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76 (if (string-equal fpnt (nth 8 (split-string (car flist) "-")))
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77 (progn (setq ret (car flist)) (setq flist nil))
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78 (setq flist (cdr flist))
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79 ))
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80 ret)
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81 (font-instance-truename fn)))
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82
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83 (defvar x-font-regexp-ascii nil
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84 "This is used to filter out font families that can't display ASCII text.
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85 It must be set at run-time.")
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86
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3094
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87 ;; #### move these to font-menu.el, and maybe make them defcustoms
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88 (defvar font-menu-common-sizes
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89 '(60 80 100 110 120 130 140 150 160 170 180 200 220 240 300 360)
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90 "List of commonly desired font sizes in decipoints.")
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91
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92 ;;;###autoload
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93 (defun x-reset-device-font-menus (device &optional debug)
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94 (if (featurep 'xft-fonts)
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95 (x-reset-device-font-menus-xft device debug)
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96 (x-reset-device-font-menus-core device debug)))
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97
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98 (defun fc-make-font-menu-entry (family)
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99 (let ((weights (fc-find-available-weights-for-family family)))
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100 (vector
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101 family
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102 (mapcar
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103 '(lambda (weight-symbol)
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104 (let ((pair (assoc weight-symbol
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105 '((:light "Light")
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106 (:medium "Medium")
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107 (:demibold "Demibold")
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108 (:bold "Bold")
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109 (:black "Black")))))
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110 (if pair (cadr pair))))
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111 weights)
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112 '(0)
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113 nil)))
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114
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115 (defun x-reset-device-font-menus-xft (device &optional debug)
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116 (let* ((families-1 (fc-find-available-font-families device))
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117 (families (delete-if (lambda (x)
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118 (string-match x-fonts-menu-junk-families x))
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119 (sort families-1 'string-lessp)))
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120 (data
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121 (vector
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122 (mapcar 'fc-make-font-menu-entry families)
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123 (mapcar
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124 '(lambda (family)
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125 (vector family `(font-menu-set-font ,family nil nil)
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126 :style 'radio :active nil :selected nil))
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127 families)
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128 (mapcar
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129 '(lambda (size)
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130 (vector
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131 (number-to-string size)
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132 `(font-menu-set-font nil nil ,size)
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133 :style 'radio :active nil :selected nil))
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134 ;; common size list in decipoints, fontconfig wants points
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135 (mapcar (lambda (x) (/ x 10)) font-menu-common-sizes))
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136 (mapcar
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137 '(lambda (weight)
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138 (vector
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139 weight
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140 `(font-menu-set-font nil ,weight nil)
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141 :style 'radio :active nil :selected nil))
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142 '("Light" "Medium" "Demibold" "Bold" "Black"))))
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143 ;; get or initialize the entry for device
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144 (dev-cache (or (assq device device-fonts-cache)
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145 (car (push (list device) device-fonts-cache)))))
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146 ;; update the device-fonts-cache entry for device in place
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147 (setcdr dev-cache data)
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148 data))
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149
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150 (defun x-reset-device-font-menus-core (device &optional debug)
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428
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151 "Generates the `Font', `Size', and `Weight' submenus for the Options menu.
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152 This is run the first time that a font-menu is needed for each device.
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153 If you don't like the lazy invocation of this function, you can add it to
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154 `create-device-hook' and that will make the font menus respond more quickly
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155 when they are selected for the first time. If you add fonts to your system,
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156 or if you change your font path, you can call this to re-initialize the menus."
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157 ;; by Stig@hackvan.com
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158 ;; #### - this should implement a `menus-only' option, which would
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2527
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159 ;; recalculate the menus from the cache w/o having to do font-list again.
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428
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160 (unless x-font-regexp-ascii
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161 (setq x-font-regexp-ascii (if (featurep 'mule)
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162 (charset-registry 'ascii)
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163 "iso8859-1")))
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164 (setq x-font-menu-registry-encoding
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165 (if (featurep 'mule) "*-*" "iso8859-1"))
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166 (let ((case-fold-search t)
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167 family size weight entry monospaced-p
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168 dev-cache cache families sizes weights)
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169 (dolist (name (cond ((null debug) ; debugging kludge
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2527
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170 (font-list "*-*-*-*-*-*-*-*-*-*-*-*-*-*" device
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1701
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171 font-menu-max-number))
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428
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172 ((stringp debug) (split-string debug "\n"))
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173 (t debug)))
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174 (when (and (string-match x-font-regexp-ascii name)
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175 (string-match x-font-regexp name))
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176 (setq weight (capitalize (match-string 1 name))
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177 size (string-to-int (match-string 6 name)))
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178 (or (string-match x-font-regexp-foundry-and-family name)
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179 (error "internal error"))
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180 (setq family (capitalize (match-string 1 name)))
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181 (or (string-match x-font-regexp-spacing name)
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182 (error "internal error"))
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183 (setq monospaced-p (string= "m" (match-string 1 name)))
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184 (unless (string-match x-fonts-menu-junk-families family)
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185 (setq entry (or (vassoc family cache)
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186 (car (setq cache
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187 (cons (vector family nil nil t)
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188 cache)))))
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189 (or (member family families) (push family families))
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190 (or (member weight weights) (push weight weights))
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191 (or (member size sizes) (push size sizes))
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192 (or (member weight (aref entry 1)) (push weight (aref entry 1)))
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193 (or (member size (aref entry 2)) (push size (aref entry 2)))
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194 (aset entry 3 (and (aref entry 3) monospaced-p)))))
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195 ;;
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196 ;; Hack scalable fonts.
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197 ;; Some fonts come only in scalable versions (the only size is 0)
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198 ;; and some fonts come in both scalable and non-scalable versions
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199 ;; (one size is 0). If there are any scalable fonts at all, make
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200 ;; sure that the union of all point sizes contains at least some
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201 ;; common sizes - it's possible that some sensible sizes might end
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202 ;; up not getting mentioned explicitly.
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203 ;;
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204 (if (member 0 sizes)
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205 (let ((common font-menu-common-sizes))
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428
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206 (while common
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207 (or;;(member (car common) sizes) ; not enough slack
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208 (let ((rest sizes)
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209 (done nil))
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210 (while (and (not done) rest)
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211 (if (and (> (car common) (- (car rest) 5))
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212 (< (car common) (+ (car rest) 5)))
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213 (setq done t))
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214 (setq rest (cdr rest)))
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215 done)
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216 (setq sizes (cons (car common) sizes)))
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217 (setq common (cdr common)))
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218 (setq sizes (delq 0 sizes))))
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219
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220 (setq families (sort families 'string-lessp)
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221 weights (sort weights 'string-lessp)
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222 sizes (sort sizes '<))
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223
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224 (dolist (entry cache)
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225 (aset entry 1 (sort (aref entry 1) 'string-lessp))
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226 (aset entry 2 (sort (aref entry 2) '<)))
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227
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228 (setq dev-cache (assq device device-fonts-cache))
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229 (or dev-cache
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230 (setq dev-cache (car (push (list device) device-fonts-cache))))
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231 (setcdr
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232 dev-cache
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233 (vector
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234 cache
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235 (mapcar (lambda (x)
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236 (vector x
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237 (list 'font-menu-set-font x nil nil)
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238 ':style 'radio ':active nil ':selected nil))
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239 families)
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240 (mapcar (lambda (x)
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241 (vector (if (/= 0 (% x 10))
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1104
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242 (number-to-string (/ x 10.0))
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243 (number-to-string (/ x 10)))
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428
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244 (list 'font-menu-set-font nil nil x)
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245 ':style 'radio ':active nil ':selected nil))
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246 sizes)
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247 (mapcar (lambda (x)
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248 (vector x
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249 (list 'font-menu-set-font nil x nil)
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250 ':style 'radio ':active nil ':selected nil))
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251 weights)))
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252 (cdr dev-cache)))
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253
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254 ;; Extract font information from a face. We examine both the
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255 ;; user-specified font name and the canonical (`true') font name.
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256 ;; These can appear to have totally different properties.
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257 ;; For examples, see the prolog above.
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258
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259 ;; We use the user-specified one if possible, else use the truename.
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260 ;; If the user didn't specify one (with "-dt-*-*", for example)
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261 ;; get the truename and use the possibly suboptimal data from that.
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262 ;;;###autoload
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523
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263 (defun x-font-menu-font-data (face dcache)
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3094
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264 (let* ((case-fold-search t)
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265 (domain (if font-menu-this-frame-only-p
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266 (selected-frame)
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267 (selected-device)))
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268 (name (font-instance-name (face-font-instance face domain))))
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269 (if (featurep 'xft-fonts)
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270 (if (xlfd-font-name-p name)
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271 ;; #### this call to x-font-menu-font-data-core originally
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272 ;; had 4 args, and that's probably the right way to go
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273 (x-font-menu-font-data-core face dcache)
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274 (x-font-menu-font-data-xft face dcache name domain))
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275 ;; #### this one, too
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276 (x-font-menu-font-data-core face dcache))))
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277
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278 (defun x-font-menu-font-data-xft (face dcache name domain)
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279 (let* ((truename (font-instance-truename
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280 (face-font-instance face domain
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281 (if (featurep 'mule) 'ascii))))
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282 entry)
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283 (if (xlfd-font-name-p truename)
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284 (progn
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285 nil)
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286 (progn
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287 (let* ((pattern (fc-font-real-pattern name domain))
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288 (family (and pattern
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289 (fc-pattern-get-family pattern 0))))
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290 (if (fc-pattern-get-successp family)
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291 (setq entry (vassoc family (aref dcache 0))))
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292 (if (null entry)
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293 (make-vector 5 nil)
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294 (let ((weight (fc-pattern-get-weight pattern 0))
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295 (size (fc-pattern-get-size pattern 0))
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296 (slant (fc-pattern-get-slant pattern 0)))
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297 (vector
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298 entry
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299 (if (fc-pattern-get-successp family)
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300 family)
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301 (if (fc-pattern-get-successp size)
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302 size)
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303 (if (fc-pattern-get-successp weight)
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304 (fc-font-weight-translate-to-string weight))
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305 (if (fc-pattern-get-successp slant)
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306 (fc-font-slant-translate-to-string slant))))))))))
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307
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308 (defun x-font-menu-font-data-core (face dcache)
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428
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309 (let* ((case-fold-search t)
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310 (domain (if font-menu-this-frame-only-p
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311 (selected-frame)
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312 (selected-device)))
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313 (name (font-instance-name (face-font-instance face domain)))
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314 (truename (font-instance-truename
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315 (face-font-instance face domain
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316 (if (featurep 'mule) 'ascii))))
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317 family size weight entry slant)
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318 (when (string-match x-font-regexp-foundry-and-family name)
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319 (setq family (capitalize (match-string 1 name)))
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320 (setq entry (vassoc family (aref dcache 0))))
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321 (when (and (null entry)
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322 (string-match x-font-regexp-foundry-and-family truename))
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323 (setq family (capitalize (match-string 1 truename)))
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324 (setq entry (vassoc family (aref dcache 0))))
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523
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325
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326 (if (null entry)
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327 (make-vector 5 nil)
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328
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329 (when (string-match x-font-regexp name)
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330 (setq weight (capitalize (match-string 1 name)))
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331 (setq size (string-to-int (match-string 6 name))))
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428
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332
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523
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333 (when (string-match x-font-regexp truename)
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334 (when (not (member weight (aref entry 1)))
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335 (setq weight (capitalize (match-string 1 truename))))
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336 (when (not (member size (aref entry 2)))
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337 (setq size (string-to-int (match-string 6 truename))))
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338 (setq slant (capitalize (match-string 2 truename))))
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428
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339
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523
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340 (vector entry family size weight slant))))
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428
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341
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342 (defun x-font-menu-load-font (family weight size slant resolution)
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3094
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343 (if (featurep 'xft-fonts)
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344 (x-font-menu-load-font-xft family weight size slant resolution)
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345 (x-font-menu-load-font-core family weight size slant resolution)))
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346
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347 (defun x-font-menu-load-font-xft (family weight size slant resolution)
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348 (let ((pattern (make-fc-pattern)))
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349 (fc-pattern-add pattern fc-font-name-property-family family)
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350 (if weight
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351 (fc-pattern-add pattern fc-font-name-property-weight
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352 (fc-font-weight-translate-from-string weight)))
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353 (if size
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354 (fc-pattern-add pattern fc-font-name-property-size size))
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355 (if slant
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356 (fc-pattern-add pattern fc-font-name-property-slant
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357 (fc-font-slant-translate-from-string slant)))
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358 (make-font-instance (fc-name-unparse pattern))))
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359
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360 (defun x-font-menu-load-font-core (family weight size slant resolution)
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428
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361 "Try to load a font with the requested properties.
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362 The weight, slant and resolution are only hints."
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363 (when (integerp size) (setq size (int-to-string size)))
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364 (let (font)
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365 (catch 'got-font
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366 (dolist (weight (list weight "*"))
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367 (dolist (slant
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368 (cond ((string-equal slant "O") '("O" "I" "*"))
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369 ((string-equal slant "I") '("I" "O" "*"))
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370 ((string-equal slant "*") '("*"))
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371 (t (list slant "*"))))
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372 (dolist (resolution
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373 (if (string-equal resolution "*-*")
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374 (list resolution)
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375 (list resolution "*-*")))
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376 (when (setq font
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377 (make-font-instance
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378 (concat "-*-" family "-" weight "-" slant "-*-*-*-"
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379 size "-" resolution "-*-*-"
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380 x-font-menu-registry-encoding)
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381 nil t))
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382 (throw 'got-font font))))))))
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383
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384 (provide 'x-font-menu)
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385
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386 ;;; x-font-menu.el ends here
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