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1 ;; msw-font-menu.el --- Managing menus of mswindows fonts.
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2
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3 ;; Copyright (C) 1999 Free Software Foundation, Inc.
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872
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4 ;; Copyright (C) 2002 Ben Wing.
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398
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5
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6 ;; Adapted from x-font-menu.el by Andy Piper <andy@xemacs.org>
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7
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8 ;; This file is part of XEmacs.
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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
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but
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16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 ;; General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs; see the file COPYING. If not, write to the
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22 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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23 ;; Boston, MA 02111-1307, USA.
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24
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872
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25 ;;; Known Problems:
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26 ;;; ===============
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27 ;;; There is knowledge here about the regexp match numbers in
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28 ;;; `mswindows-font-regexp' and `mswindows-font-regexp-foundry-and-family' defined in
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29 ;;; mswindows-faces.el.
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30 ;;;
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31
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398
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32 ;;; mswindows fonts look like:
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33 ;;; fontname[:[weight][ style][:pointsize[:effects]]][:charset]
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34 ;;; ie:
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35 ;;; Lucida Console:Regular:10
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36 ;;; minimal:
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37 ;;; Courier New
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38 ;;; maximal:
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39 ;;; Courier New:Bold Italic:10:underline strikeout:western
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40
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41 ;;; Code:
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42
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43 ;; #### - implement these...
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44 ;;
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45 ;;; (defvar font-menu-ignore-proportional-fonts nil
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46 ;;; "*If non-nil, then the font menu will only show fixed-width fonts.")
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47
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48 (require 'font-menu)
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49 (globally-declare-boundp 'mswindows-font-regexp)
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50
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4103
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51 (globally-declare-fboundp
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52 '(mswindows-parse-font-style
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53 mswindows-construct-font-style))
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54
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55 (defvar mswindows-font-menu-junk-families
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444
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56 (mapconcat
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57 #'identity
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58 '("Symbol"
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59 )
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60 "\\|")
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398
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61 "A regexp matching font families which are uninteresting (e.g. cursor fonts).")
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62
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63 (defvar mswindows-font-regexp-ascii nil
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64 "This is used to filter out font families that can't display ASCII text.
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65 It must be set at run-time.")
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66
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67 ;;;###autoload
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68 (defun mswindows-reset-device-font-menus (device &optional debug)
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69 "Generates the `Font', `Size', and `Weight' submenus for the Options menu.
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70 This is run the first time that a font-menu is needed for each device.
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71 If you don't like the lazy invocation of this function, you can add it to
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72 `create-device-hook' and that will make the font menus respond more quickly
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73 when they are selected for the first time. If you add fonts to your system,
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74 or if you change your font path, you can call this to re-initialize the menus."
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75 (unless mswindows-font-regexp-ascii
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76 (setq mswindows-font-regexp-ascii "Western"))
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77 (let ((case-fold-search t)
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78 family size weight entry
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79 dev-cache cache families sizes weights)
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80 (dolist (name (cond ((null debug) ; debugging kludge
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81 (font-list "::::" device))
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82 ((stringp debug) (split-string debug "\n"))
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83 (t debug)))
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84 (when (and (string-match mswindows-font-regexp-ascii name)
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85 (string-match mswindows-font-regexp name))
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86 (setq weight (capitalize (car (mswindows-parse-font-style
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87 (match-string 2 name))))
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88 size (string-to-int (match-string 3 name))
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89 family (match-string 1 name))
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90 (unless (string-match mswindows-font-menu-junk-families family)
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91 (setq entry (or (vassoc name cache)
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92 (car (setq cache
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93 (cons (vector family nil nil t)
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94 cache)))))
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95 (or (member family families) (push family families))
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96 (or (member weight weights) (push weight weights))
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97 (or (member size sizes) (push size sizes))
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98 (or (member weight (aref entry 1)) (push weight (aref entry 1)))
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99 (or (member size (aref entry 2)) (push size (aref entry 2))))))
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100 ;;
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101 ;; Hack scalable fonts.
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102 ;; Some fonts come only in scalable versions (the only size is 0)
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103 ;; and some fonts come in both scalable and non-scalable versions
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104 ;; (one size is 0). If there are any scalable fonts at all, make
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105 ;; sure that the union of all point sizes contains at least some
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106 ;; common sizes - it's possible that some sensible sizes might end
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107 ;; up not getting mentioned explicitly.
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108 ;;
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109 (if (member 0 sizes)
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110 (let ((common '(6 8 10 12 14 16 18 24)))
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111 (while common
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112 (or;;(member (car common) sizes) ; not enough slack
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113 (let ((rest sizes)
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114 (done nil))
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115 (while (and (not done) rest)
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116 (if (and (> (car common) (- (car rest) 1))
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117 (< (car common) (+ (car rest) 1)))
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118 (setq done t))
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119 (setq rest (cdr rest)))
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120 done)
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121 (setq sizes (cons (car common) sizes)))
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122 (setq common (cdr common)))
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123 (setq sizes (delq 0 sizes))))
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124
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125 (setq families (sort families 'string-lessp)
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126 weights (sort weights 'string-lessp)
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127 sizes (sort sizes '<))
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128
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129 (dolist (entry cache)
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130 (aset entry 1 (sort (aref entry 1) 'string-lessp))
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131 (aset entry 2 (sort (aref entry 2) '<)))
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132
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133 (setq dev-cache (assq device device-fonts-cache))
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134 (or dev-cache
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135 (setq dev-cache (car (push (list device) device-fonts-cache))))
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136 (setcdr
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137 dev-cache
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138 (vector
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139 cache
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140 (mapcar (lambda (x)
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141 (vector x
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142 (list 'font-menu-set-font x nil nil)
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143 ':style 'radio ':active nil ':selected nil))
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144 families)
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145 (mapcar (lambda (x)
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146 (vector (int-to-string x)
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147 (list 'font-menu-set-font nil nil x)
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148 ':style 'radio ':active nil ':selected nil))
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149 sizes)
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150 (mapcar (lambda (x)
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151 (vector x
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152 (list 'font-menu-set-font nil x nil)
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153 ':style 'radio ':active nil ':selected nil))
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154 weights)))
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155 (cdr dev-cache)))
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156
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157 ;; Extract font information from a face. We examine both the
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158 ;; user-specified font name and the canonical (`true') font name.
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159 ;; These can appear to have totally different properties.
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160
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161 ;; We use the user-specified one if possible, else use the truename.
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162 ;; If the user didn't specify one get the truename and use the
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163 ;; possibly suboptimal data from that.
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164 ;;;###autoload
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165 (defun* mswindows-font-menu-font-data (face dcache)
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166 (let* ((case-fold-search t)
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167 (domain (if font-menu-this-frame-only-p
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168 (selected-frame)
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169 (selected-device)))
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170 (name (font-instance-name (face-font-instance face domain)))
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171 (truename (font-instance-truename
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172 (face-font-instance face domain
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173 (if (featurep 'mule) 'ascii))))
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174 family size weight entry slant)
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175 (when (string-match mswindows-font-regexp name)
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176 (setq family (match-string 1 name))
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177 (setq entry (vassoc family (aref dcache 0))))
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178 (when (and (null entry)
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179 (string-match mswindows-font-regexp truename))
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180 (setq family (match-string 1 truename))
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181 (setq entry (vassoc family (aref dcache 0))))
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182 (when (null entry)
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183 (return-from mswindows-font-menu-font-data (make-vector 5 nil)))
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184
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185 (when (string-match mswindows-font-regexp name)
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186 (setq weight (car (mswindows-parse-font-style (match-string 2 name))))
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187 (setq size (string-to-int (match-string 3 name))))
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188
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189 (when (string-match mswindows-font-regexp truename)
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190 (destructuring-bind (newweight . slant)
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191 (mswindows-parse-font-style (match-string 2 truename))
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192 (when (not (member weight (aref entry 1)))
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193 (setq weight newweight))
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194 (when (not (member size (aref entry 2)))
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195 (setq size (string-to-int (match-string 3 truename))))))
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196
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197 (vector entry family size weight slant)))
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198
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199 (defun mswindows-font-menu-load-font (family weight size slant resolution)
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200 "Try to load a font with the requested properties.
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201 The weight, slant and resolution are only hints."
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202 (when (integerp size) (setq size (int-to-string size)))
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203 (let (font)
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204 (catch 'got-font
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205 (dolist (weight (list weight ""))
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206 (dolist (slant
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207 ;; oblique is not currently implemented
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208 (cond ((string-equal slant "Oblique") '("Italic" ""))
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209 ((string-equal slant "Italic") '("Italic" ""))
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210 (t (list slant ""))))
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211 (when (setq font
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212 (make-font-instance
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213 (concat
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214 family ":"
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215 (mswindows-construct-font-style weight slant) ":"
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216 size "::")
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217 nil t))
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218 (throw 'got-font font)))))))
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219
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220 (provide 'mswindows-font-menu)
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221
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222 ;;; msw-font-menu.el ends here
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