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217
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1 ;;; font.el --- New font model
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2 ;; Author: wmperry
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3 ;; Created: 1997/09/05 15:44:37
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4 ;; Version: 1.52
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5 ;; Keywords: faces
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6
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7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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8 ;;; Copyright (c) 1995, 1996 by William M. Perry (wmperry@cs.indiana.edu)
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9 ;;; Copyright (c) 1996, 1997 Free Software Foundation, Inc.
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10 ;;;
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11 ;;; This file is part of GNU Emacs.
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12 ;;;
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13 ;;; GNU Emacs is free software; you can redistribute it and/or modify
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14 ;;; it under the terms of the GNU General Public License as published by
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15 ;;; the Free Software Foundation; either version 2, or (at your option)
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16 ;;; any later version.
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17 ;;;
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18 ;;; GNU Emacs is distributed in the hope that it will be useful,
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19 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 ;;; GNU General Public License for more details.
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22 ;;;
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23 ;;; You should have received a copy of the GNU General Public License
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24 ;;; along with GNU Emacs; see the file COPYING. If not, write to the
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25 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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26 ;;; Boston, MA 02111-1307, USA.
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27 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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28
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29 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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30 ;;; The emacsen compatibility package - load it up before anything else
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31 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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32 (require 'cl)
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33
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34 (eval-and-compile
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35 (condition-case ()
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36 (require 'custom)
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37 (error nil))
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38 (if (and (featurep 'custom) (fboundp 'custom-declare-variable))
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39 nil ;; We've got what we needed
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40 ;; We have the old custom-library, hack around it!
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41 (defmacro defgroup (&rest args)
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42 nil)
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43 (defmacro defcustom (var value doc &rest args)
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44 (` (defvar (, var) (, value) (, doc))))))
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45
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46 (if (not (fboundp 'try-font-name))
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47 (defun try-font-name (fontname &rest args)
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48 (case window-system
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49 ((x pm) (car-safe (x-list-fonts fontname)))
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263
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50 (mswindows (car-safe (mswindows-list-fonts fontname)))
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217
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51 (ns (car-safe (ns-list-fonts fontname)))
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52 (otherwise nil))))
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53
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54 (if (not (fboundp 'facep))
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55 (defun facep (face)
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56 "Return t if X is a face name or an internal face vector."
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57 (if (not window-system)
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58 nil ; FIXME if FSF ever does TTY faces
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59 (and (or (internal-facep face)
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60 (and (symbolp face) (assq face global-face-data)))
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61 t))))
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62
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63 (if (not (fboundp 'set-face-property))
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64 (defun set-face-property (face property value &optional locale
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65 tag-set how-to-add)
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66 "Change a property of FACE."
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67 (and (symbolp face)
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68 (put face property value))))
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69
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70 (if (not (fboundp 'face-property))
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71 (defun face-property (face property &optional locale tag-set exact-p)
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72 "Return FACE's value of the given PROPERTY."
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73 (and (symbolp face) (get face property))))
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74
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75 (require 'disp-table)
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76
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77 (if (not (fboundp '<<)) (fset '<< 'lsh))
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78 (if (not (fboundp '&)) (fset '& 'logand))
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79 (if (not (fboundp '|)) (fset '| 'logior))
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80 (if (not (fboundp '~)) (fset '~ 'lognot))
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81 (if (not (fboundp '>>)) (defun >> (value count) (<< value (- count))))
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82
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83
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84 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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85 ;;; Lots of variables / keywords for use later in the program
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86 ;;; Not much should need to be modified
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87 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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88 (defconst font-running-xemacs (string-match "XEmacs" (emacs-version))
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89 "Whether we are running in XEmacs or not.")
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90
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91 (defmacro define-font-keywords (&rest keys)
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92 (`
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93 (eval-and-compile
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94 (let ((keywords (quote (, keys))))
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95 (while keywords
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96 (or (boundp (car keywords))
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97 (set (car keywords) (car keywords)))
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98 (setq keywords (cdr keywords)))))))
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99
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100 (defconst font-window-system-mappings
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101 '((x . (x-font-create-name x-font-create-object))
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102 (ns . (ns-font-create-name ns-font-create-object))
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103 (mswindows . (x-font-create-name x-font-create-object)) ; XXX FIXME
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104 (pm . (x-font-create-name x-font-create-object)) ; Change? FIXME
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105 (tty . (tty-font-create-plist tty-font-create-object)))
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106 "An assoc list mapping device types to the function used to create
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107 a font name from a font structure.")
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108
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109 (defconst ns-font-weight-mappings
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110 '((:extra-light . "extralight")
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111 (:light . "light")
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112 (:demi-light . "demilight")
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113 (:medium . "medium")
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114 (:normal . "medium")
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115 (:demi-bold . "demibold")
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116 (:bold . "bold")
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117 (:extra-bold . "extrabold"))
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118 "An assoc list mapping keywords to actual NeXTstep specific
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119 information to use")
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120
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121 (defconst x-font-weight-mappings
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122 '((:extra-light . "extralight")
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123 (:light . "light")
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124 (:demi-light . "demilight")
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125 (:demi . "demi")
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126 (:book . "book")
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127 (:medium . "medium")
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128 (:normal . "medium")
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129 (:demi-bold . "demibold")
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130 (:bold . "bold")
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131 (:extra-bold . "extrabold"))
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132 "An assoc list mapping keywords to actual Xwindow specific strings
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133 for use in the 'weight' field of an X font string.")
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134
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135 (defconst font-possible-weights
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136 (mapcar 'car x-font-weight-mappings))
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137
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138 (defvar font-rgb-file nil
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139 "Where the RGB file was found.")
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140
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141 (defvar font-maximum-slippage "1pt"
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142 "How much a font is allowed to vary from the desired size.")
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143
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144 (defvar font-family-mappings
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145 '(
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146 ("serif" . ("new century schoolbook"
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147 "utopia"
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148 "charter"
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149 "times"
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150 "lucidabright"
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151 "garamond"
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152 "palatino"
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153 "times new roman"
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154 "baskerville"
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155 "bookman"
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156 "bodoni"
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157 "computer modern"
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158 "rockwell"
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159 ))
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160 ("sans-serif" . ("lucida"
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161 "helvetica"
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162 "gills-sans"
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163 "avant-garde"
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164 "univers"
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165 "optima"))
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166 ("elfin" . ("tymes"))
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167 ("monospace" . ("courier"
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168 "courier new"
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169 "fixed"
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170 "lucidatypewriter"
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171 "clean"
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172 "terminal"))
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173 ("cursive" . ("sirene"
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174 "zapf chancery"))
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175 )
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176 "A list of font family mappings.")
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177
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178 (define-font-keywords :family :style :size :registry :encoding)
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179
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180 (define-font-keywords
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181 :weight :extra-light :light :demi-light :medium :normal :demi-bold
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182 :bold :extra-bold)
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183
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184 (defvar font-style-keywords nil)
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185
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186 (defsubst set-font-family (fontobj family)
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187 (aset fontobj 1 family))
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188
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189 (defsubst set-font-weight (fontobj weight)
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190 (aset fontobj 3 weight))
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191
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192 (defsubst set-font-style (fontobj style)
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193 (aset fontobj 5 style))
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194
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195 (defsubst set-font-size (fontobj size)
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196 (aset fontobj 7 size))
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197
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198 (defsubst set-font-registry (fontobj reg)
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199 (aset fontobj 9 reg))
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200
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201 (defsubst set-font-encoding (fontobj enc)
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202 (aset fontobj 11 enc))
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203
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204 (defsubst font-family (fontobj)
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205 (aref fontobj 1))
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206
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207 (defsubst font-weight (fontobj)
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208 (aref fontobj 3))
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209
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210 (defsubst font-style (fontobj)
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211 (aref fontobj 5))
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212
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213 (defsubst font-size (fontobj)
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214 (aref fontobj 7))
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215
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216 (defsubst font-registry (fontobj)
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217 (aref fontobj 9))
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218
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219 (defsubst font-encoding (fontobj)
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220 (aref fontobj 11))
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221
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222 (eval-when-compile
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223 (defmacro define-new-mask (attr mask)
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224 (`
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225 (progn
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226 (setq font-style-keywords
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227 (cons (cons (quote (, attr))
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228 (cons
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229 (quote (, (intern (format "set-font-%s-p" attr))))
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230 (quote (, (intern (format "font-%s-p" attr))))))
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231 font-style-keywords))
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232 (defconst (, (intern (format "font-%s-mask" attr))) (<< 1 (, mask))
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233 (, (format
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234 "Bitmask for whether a font is to be rendered in %s or not."
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235 attr)))
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236 (defun (, (intern (format "font-%s-p" attr))) (fontobj)
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237 (, (format "Whether FONTOBJ will be renderd in `%s' or not." attr))
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238 (if (/= 0 (& (font-style fontobj)
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239 (, (intern (format "font-%s-mask" attr)))))
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240 t
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241 nil))
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242 (defun (, (intern (format "set-font-%s-p" attr))) (fontobj val)
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243 (, (format "Set whether FONTOBJ will be renderd in `%s' or not."
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244 attr))
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245 (cond
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246 (val
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247 (set-font-style fontobj (| (font-style fontobj)
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248 (, (intern
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249 (format "font-%s-mask" attr))))))
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250 (((, (intern (format "font-%s-p" attr))) fontobj)
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251 (set-font-style fontobj (- (font-style fontobj)
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252 (, (intern
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253 (format "font-%s-mask" attr))))))))
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254 ))))
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255
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256 (let ((mask 0))
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257 (define-new-mask bold (setq mask (1+ mask)))
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258 (define-new-mask italic (setq mask (1+ mask)))
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259 (define-new-mask oblique (setq mask (1+ mask)))
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260 (define-new-mask dim (setq mask (1+ mask)))
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261 (define-new-mask underline (setq mask (1+ mask)))
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262 (define-new-mask overline (setq mask (1+ mask)))
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263 (define-new-mask linethrough (setq mask (1+ mask)))
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264 (define-new-mask strikethru (setq mask (1+ mask)))
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265 (define-new-mask reverse (setq mask (1+ mask)))
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266 (define-new-mask blink (setq mask (1+ mask)))
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267 (define-new-mask smallcaps (setq mask (1+ mask)))
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268 (define-new-mask bigcaps (setq mask (1+ mask)))
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269 (define-new-mask dropcaps (setq mask (1+ mask))))
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270
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271 (defvar font-caps-display-table
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272 (let ((table (make-display-table))
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273 (i 0))
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274 ;; Standard ASCII characters
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275 (while (< i 26)
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276 (aset table (+ i ?a) (+ i ?A))
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277 (setq i (1+ i)))
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278 ;; Now ISO translations
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279 (setq i 224)
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280 (while (< i 247) ;; Agrave - Ouml
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281 (aset table i (- i 32))
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282 (setq i (1+ i)))
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283 (setq i 248)
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284 (while (< i 255) ;; Oslash - Thorn
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285 (aset table i (- i 32))
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286 (setq i (1+ i)))
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287 table))
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288
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289 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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290 ;;; Utility functions
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291 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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292 (defsubst set-font-style-by-keywords (fontobj styles)
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293 (make-local-variable 'font-func)
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294 (declare (special font-func))
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295 (if (listp styles)
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296 (while styles
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297 (setq font-func (car-safe (cdr-safe (assq (car styles) font-style-keywords)))
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298 styles (cdr styles))
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299 (and (fboundp font-func) (funcall font-func fontobj t)))
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300 (setq font-func (car-safe (cdr-safe (assq styles font-style-keywords))))
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301 (and (fboundp font-func) (funcall font-func fontobj t))))
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302
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303 (defsubst font-properties-from-style (fontobj)
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304 (let ((style (font-style fontobj))
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305 (todo font-style-keywords)
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306 type func retval)
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307 (while todo
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308 (setq func (cdr (cdr (car todo)))
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309 type (car (pop todo)))
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310 (if (funcall func fontobj)
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311 (setq retval (cons type retval))))
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312 retval))
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313
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314 (defun font-unique (list)
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315 (let ((retval)
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316 (cur))
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317 (while list
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318 (setq cur (car list)
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319 list (cdr list))
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320 (if (member cur retval)
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321 nil
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322 (setq retval (cons cur retval))))
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323 (nreverse retval)))
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324
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325 (defun font-higher-weight (w1 w2)
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326 (let ((index1 (length (memq w1 font-possible-weights)))
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327 (index2 (length (memq w2 font-possible-weights))))
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328 (cond
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329 ((<= index1 index2)
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330 (or w1 w2))
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331 ((not w2)
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332 w1)
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333 (t
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334 w2))))
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335
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336 (defun font-spatial-to-canonical (spec &optional device)
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337 "Convert SPEC (in inches, millimeters, points, or picas) into points"
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338 ;; 1 in = 6 pa = 25.4 mm = 72 pt
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339 (cond
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340 ((numberp spec)
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341 spec)
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342 ((null spec)
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343 nil)
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344 (t
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345 (let ((num nil)
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346 (type nil)
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347 ;; If for any reason we get null for any of this, default
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348 ;; to 1024x768 resolution on a 17" screen
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349 (pix-width (float (or (device-pixel-width device) 1024)))
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350 (mm-width (float (or (device-mm-width device) 293)))
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351 (retval nil))
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352 (cond
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353 ((string-match "^ *\\([-+*/]\\) *" spec) ; math! whee!
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354 (let ((math-func (intern (match-string 1 spec)))
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355 (other (font-spatial-to-canonical
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356 (substring spec (match-end 0) nil)))
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357 (default (font-spatial-to-canonical
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358 (font-default-size-for-device device))))
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359 (if (fboundp math-func)
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360 (setq type "px"
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361 spec (int-to-string (funcall math-func default other)))
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362 (setq type "px"
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363 spec (int-to-string other)))))
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364 ((string-match "[^0-9.]+$" spec)
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365 (setq type (substring spec (match-beginning 0))
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366 spec (substring spec 0 (match-beginning 0))))
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367 (t
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368 (setq type "px"
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369 spec spec)))
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370 (setq num (string-to-number spec))
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371 (cond
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372 ((member type '("pixel" "px" "pix"))
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373 (setq retval (* num (/ pix-width mm-width) (/ 25.4 72.0))))
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374 ((member type '("point" "pt"))
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375 (setq retval num))
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376 ((member type '("pica" "pa"))
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377 (setq retval (* num 12.0)))
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378 ((member type '("inch" "in"))
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379 (setq retval (* num 72.0)))
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380 ((string= type "mm")
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381 (setq retval (* num (/ 72.0 25.4))))
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382 ((string= type "cm")
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383 (setq retval (* num 10 (/ 72.0 25.4))))
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384 (t
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385 (setq retval num))
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386 )
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387 retval))))
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388
|
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389
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390 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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|
391 ;;; The main interface routines - constructors and accessor functions
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|
392 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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393 (defun make-font (&rest args)
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394 (vector :family
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395 (if (stringp (plist-get args :family))
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396 (list (plist-get args :family))
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397 (plist-get args :family))
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398 :weight
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399 (plist-get args :weight)
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400 :style
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401 (if (numberp (plist-get args :style))
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402 (plist-get args :style)
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403 0)
|
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404 :size
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405 (plist-get args :size)
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406 :registry
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407 (plist-get args :registry)
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408 :encoding
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409 (plist-get args :encoding)))
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410
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411 (defun font-create-name (fontobj &optional device)
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412 (let* ((type (device-type device))
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413 (func (car (cdr-safe (assq type font-window-system-mappings)))))
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414 (and func (fboundp func) (funcall func fontobj device))))
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415
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|
416 ;;;###autoload
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417 (defun font-create-object (fontname &optional device)
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418 (let* ((type (device-type device))
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419 (func (car (cdr (cdr-safe (assq type font-window-system-mappings))))))
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420 (and func (fboundp func) (funcall func fontname device))))
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421
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422 (defun font-combine-fonts-internal (fontobj-1 fontobj-2)
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423 (let ((retval (make-font))
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|
424 (size-1 (and (font-size fontobj-1)
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|
425 (font-spatial-to-canonical (font-size fontobj-1))))
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426 (size-2 (and (font-size fontobj-2)
|
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|
427 (font-spatial-to-canonical (font-size fontobj-2)))))
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|
428 (set-font-weight retval (font-higher-weight (font-weight fontobj-1)
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|
429 (font-weight fontobj-2)))
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430 (set-font-family retval (font-unique (append (font-family fontobj-1)
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|
431 (font-family fontobj-2))))
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|
432 (set-font-style retval (| (font-style fontobj-1) (font-style fontobj-2)))
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|
433 (set-font-registry retval (or (font-registry fontobj-1)
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|
434 (font-registry fontobj-2)))
|
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|
435 (set-font-encoding retval (or (font-encoding fontobj-1)
|
|
|
436 (font-encoding fontobj-2)))
|
|
|
437 (set-font-size retval (cond
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|
|
438 ((and size-1 size-2 (>= size-2 size-1))
|
|
|
439 (font-size fontobj-2))
|
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|
440 ((and size-1 size-2)
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|
|
441 (font-size fontobj-1))
|
|
|
442 (size-1
|
|
|
443 (font-size fontobj-1))
|
|
|
444 (size-2
|
|
|
445 (font-size fontobj-2))
|
|
|
446 (t nil)))
|
|
|
447
|
|
|
448 retval))
|
|
|
449
|
|
|
450 (defun font-combine-fonts (&rest args)
|
|
|
451 (cond
|
|
|
452 ((null args)
|
|
|
453 (error "Wrong number of arguments to font-combine-fonts"))
|
|
|
454 ((= (length args) 1)
|
|
|
455 (car args))
|
|
|
456 (t
|
|
|
457 (let ((retval (font-combine-fonts-internal (nth 0 args) (nth 1 args))))
|
|
|
458 (setq args (cdr (cdr args)))
|
|
|
459 (while args
|
|
|
460 (setq retval (font-combine-fonts-internal retval (car args))
|
|
|
461 args (cdr args)))
|
|
|
462 retval))))
|
|
|
463
|
|
|
464
|
|
|
465 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
466 ;;; The window-system dependent code (TTY-style)
|
|
|
467 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
468 (defun tty-font-create-object (fontname &optional device)
|
|
|
469 (make-font :size "12pt"))
|
|
|
470
|
|
|
471 (defun tty-font-create-plist (fontobj &optional device)
|
|
|
472 (let ((styles (font-style fontobj))
|
|
|
473 (weight (font-weight fontobj)))
|
|
|
474 (list
|
|
|
475 (cons 'underline (font-underline-p fontobj))
|
|
|
476 (cons 'highlight (if (or (font-bold-p fontobj)
|
|
|
477 (memq weight '(:bold :demi-bold))) t))
|
|
|
478 (cons 'dim (font-dim-p fontobj))
|
|
|
479 (cons 'blinking (font-blink-p fontobj))
|
|
|
480 (cons 'reverse (font-reverse-p fontobj)))))
|
|
|
481
|
|
|
482
|
|
|
483 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
484 ;;; The window-system dependent code (X-style)
|
|
|
485 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
486 (defvar font-x-font-regexp (or (and font-running-xemacs
|
|
|
487 (boundp 'x-font-regexp)
|
|
|
488 x-font-regexp)
|
|
|
489 (let
|
|
|
490 ((- "[-?]")
|
|
|
491 (foundry "[^-]*")
|
|
|
492 (family "[^-]*")
|
|
|
493 (weight "\\(bold\\|demibold\\|medium\\|black\\)")
|
|
|
494 (weight\? "\\([^-]*\\)")
|
|
|
495 (slant "\\([ior]\\)")
|
|
|
496 (slant\? "\\([^-]?\\)")
|
|
|
497 (swidth "\\([^-]*\\)")
|
|
|
498 (adstyle "\\([^-]*\\)")
|
|
|
499 (pixelsize "\\(\\*\\|[0-9]+\\)")
|
|
|
500 (pointsize "\\(\\*\\|0\\|[0-9][0-9]+\\)")
|
|
|
501 (resx "\\([*0]\\|[0-9][0-9]+\\)")
|
|
|
502 (resy "\\([*0]\\|[0-9][0-9]+\\)")
|
|
|
503 (spacing "[cmp?*]")
|
|
|
504 (avgwidth "\\(\\*\\|[0-9]+\\)")
|
|
|
505 (registry "[^-]*")
|
|
|
506 (encoding "[^-]+")
|
|
|
507 )
|
|
|
508 (concat "\\`\\*?[-?*]"
|
|
|
509 foundry - family - weight\? - slant\? - swidth - adstyle -
|
|
|
510 pixelsize - pointsize - resx - resy - spacing - avgwidth -
|
|
|
511 registry - encoding "\\'"
|
|
|
512 ))))
|
|
|
513
|
|
|
514 (defvar font-x-registry-and-encoding-regexp
|
|
|
515 (or (and font-running-xemacs
|
|
|
516 (boundp 'x-font-regexp-registry-and-encoding)
|
|
|
517 (symbol-value 'x-font-regexp-registry-and-encoding))
|
|
|
518 (let ((- "[-?]")
|
|
|
519 (registry "[^-]*")
|
|
|
520 (encoding "[^-]+"))
|
|
|
521 (concat - "\\(" registry "\\)" - "\\(" encoding "\\)\\'"))))
|
|
|
522
|
|
|
523 (defun x-font-create-object (fontname &optional device)
|
|
|
524 (let ((case-fold-search t))
|
|
|
525 (if (or (not (stringp fontname))
|
|
|
526 (not (string-match font-x-font-regexp fontname)))
|
|
|
527 (make-font)
|
|
|
528 (let ((family nil)
|
|
|
529 (style nil)
|
|
|
530 (size nil)
|
|
|
531 (weight (match-string 1 fontname))
|
|
|
532 (slant (match-string 2 fontname))
|
|
|
533 (swidth (match-string 3 fontname))
|
|
|
534 (adstyle (match-string 4 fontname))
|
|
|
535 (pxsize (match-string 5 fontname))
|
|
|
536 (ptsize (match-string 6 fontname))
|
|
|
537 (retval nil)
|
|
|
538 (case-fold-search t)
|
|
|
539 )
|
|
|
540 (if (not (string-match x-font-regexp-foundry-and-family fontname))
|
|
|
541 nil
|
|
|
542 (setq family (list (downcase (match-string 1 fontname)))))
|
|
|
543 (if (string= "*" weight) (setq weight nil))
|
|
|
544 (if (string= "*" slant) (setq slant nil))
|
|
|
545 (if (string= "*" swidth) (setq swidth nil))
|
|
|
546 (if (string= "*" adstyle) (setq adstyle nil))
|
|
|
547 (if (string= "*" pxsize) (setq pxsize nil))
|
|
|
548 (if (string= "*" ptsize) (setq ptsize nil))
|
|
|
549 (if ptsize (setq size (/ (string-to-int ptsize) 10)))
|
|
|
550 (if (and (not size) pxsize) (setq size (concat pxsize "px")))
|
|
|
551 (if weight (setq weight (intern-soft (concat ":" (downcase weight)))))
|
|
|
552 (if (and adstyle (not (equal adstyle "")))
|
|
|
553 (setq family (append family (list (downcase adstyle)))))
|
|
|
554 (setq retval (make-font :family family
|
|
|
555 :weight weight
|
|
|
556 :size size))
|
|
|
557 (set-font-bold-p retval (eq :bold weight))
|
|
|
558 (cond
|
|
|
559 ((null slant) nil)
|
|
|
560 ((member slant '("i" "I"))
|
|
|
561 (set-font-italic-p retval t))
|
|
|
562 ((member slant '("o" "O"))
|
|
|
563 (set-font-oblique-p retval t)))
|
|
|
564 (if (string-match font-x-registry-and-encoding-regexp fontname)
|
|
|
565 (progn
|
|
|
566 (set-font-registry retval (match-string 1 fontname))
|
|
|
567 (set-font-encoding retval (match-string 2 fontname))))
|
|
|
568 retval))))
|
|
|
569
|
|
|
570 (defun x-font-families-for-device (&optional device no-resetp)
|
|
|
571 (condition-case ()
|
|
|
572 (require 'x-font-menu)
|
|
|
573 (error nil))
|
|
|
574 (or device (setq device (selected-device)))
|
|
|
575 (if (boundp 'device-fonts-cache)
|
|
|
576 (let ((menu (or (cdr-safe (assq device device-fonts-cache)))))
|
|
|
577 (if (and (not menu) (not no-resetp))
|
|
|
578 (progn
|
|
|
579 (reset-device-font-menus device)
|
|
|
580 (x-font-families-for-device device t))
|
|
|
581 (let ((scaled (mapcar (function (lambda (x) (if x (aref x 0))))
|
|
|
582 (aref menu 0)))
|
|
|
583 (normal (mapcar (function (lambda (x) (if x (aref x 0))))
|
|
|
584 (aref menu 1))))
|
|
|
585 (sort (font-unique (nconc scaled normal)) 'string-lessp))))
|
|
|
586 (cons "monospace" (mapcar 'car font-family-mappings))))
|
|
|
587
|
|
|
588 (defvar font-default-cache nil)
|
|
|
589
|
|
|
590 ;;;###autoload
|
|
|
591 (defun font-default-font-for-device (&optional device)
|
|
|
592 (or device (setq device (selected-device)))
|
|
|
593 (if font-running-xemacs
|
|
|
594 (font-truename
|
|
|
595 (make-font-specifier
|
|
|
596 (face-font-name 'default device)))
|
|
|
597 (let ((font (cdr-safe (assq 'font (frame-parameters device)))))
|
|
|
598 (if (and (fboundp 'fontsetp) (fontsetp font))
|
|
|
599 (aref (get-font-info (aref (cdr (get-fontset-info font)) 0)) 2)
|
|
|
600 font))))
|
|
|
601
|
|
|
602 ;;;###autoload
|
|
|
603 (defun font-default-object-for-device (&optional device)
|
|
|
604 (let ((font (font-default-font-for-device device)))
|
|
|
605 (or (cdr-safe
|
|
|
606 (assoc font font-default-cache))
|
|
|
607 (progn
|
|
|
608 (setq font-default-cache (cons (cons font
|
|
|
609 (font-create-object font))
|
|
|
610 font-default-cache))
|
|
|
611 (cdr-safe (assoc font font-default-cache))))))
|
|
|
612
|
|
|
613 ;;;###autoload
|
|
|
614 (defun font-default-family-for-device (&optional device)
|
|
|
615 (or device (setq device (selected-device)))
|
|
|
616 (font-family (font-default-object-for-device device)))
|
|
|
617
|
|
|
618 ;;;###autoload
|
|
|
619 (defun font-default-registry-for-device (&optional device)
|
|
|
620 (or device (setq device (selected-device)))
|
|
|
621 (font-registry (font-default-object-for-device device)))
|
|
|
622
|
|
|
623 ;;;###autoload
|
|
|
624 (defun font-default-encoding-for-device (&optional device)
|
|
|
625 (or device (setq device (selected-device)))
|
|
|
626 (font-encoding (font-default-object-for-device device)))
|
|
|
627
|
|
|
628 ;;;###autoload
|
|
|
629 (defun font-default-size-for-device (&optional device)
|
|
|
630 (or device (setq device (selected-device)))
|
|
|
631 ;; face-height isn't the right thing (always 1 pixel too high?)
|
|
|
632 ;; (if font-running-xemacs
|
|
|
633 ;; (format "%dpx" (face-height 'default device))
|
|
|
634 (font-size (font-default-object-for-device device)))
|
|
|
635
|
|
|
636 (defun x-font-create-name (fontobj &optional device)
|
|
|
637 (if (and (not (or (font-family fontobj)
|
|
|
638 (font-weight fontobj)
|
|
|
639 (font-size fontobj)
|
|
|
640 (font-registry fontobj)
|
|
|
641 (font-encoding fontobj)))
|
|
|
642 (= (font-style fontobj) 0))
|
|
|
643 (face-font 'default)
|
|
|
644 (or device (setq device (selected-device)))
|
|
|
645 (let* ((default (font-default-object-for-device device))
|
|
|
646 (family (or (font-family fontobj)
|
|
|
647 (font-family default)
|
|
|
648 (x-font-families-for-device device)))
|
|
|
649 (weight (or (font-weight fontobj) :medium))
|
|
|
650 (style (font-style fontobj))
|
|
|
651 (size (or (if font-running-xemacs
|
|
|
652 (font-size fontobj))
|
|
|
653 (font-size default)))
|
|
|
654 (registry (or (font-registry fontobj)
|
|
|
655 (font-registry default)
|
|
|
656 "*"))
|
|
|
657 (encoding (or (font-encoding fontobj)
|
|
|
658 (font-encoding default)
|
|
|
659 "*")))
|
|
|
660 (if (stringp family)
|
|
|
661 (setq family (list family)))
|
|
|
662 (setq weight (font-higher-weight weight
|
|
|
663 (and (font-bold-p fontobj) :bold)))
|
|
|
664 (if (stringp size)
|
|
|
665 (setq size (truncate (font-spatial-to-canonical size device))))
|
|
|
666 (setq weight (or (cdr-safe (assq weight x-font-weight-mappings)) "*"))
|
|
|
667 (let ((done nil) ; Did we find a good font yet?
|
|
|
668 (font-name nil) ; font name we are currently checking
|
|
|
669 (cur-family nil) ; current family we are checking
|
|
|
670 )
|
|
|
671 (while (and family (not done))
|
|
|
672 (setq cur-family (car family)
|
|
|
673 family (cdr family))
|
|
|
674 (if (assoc cur-family font-family-mappings)
|
|
|
675 ;; If the family name is an alias as defined by
|
|
|
676 ;; font-family-mappings, then append those families
|
|
|
677 ;; to the front of 'family' and continue in the loop.
|
|
|
678 (setq family (append
|
|
|
679 (cdr-safe (assoc cur-family
|
|
|
680 font-family-mappings))
|
|
|
681 family))
|
|
|
682 ;; Not an alias for a list of fonts, so we just check it.
|
|
|
683 ;; First, convert all '-' to spaces so that we don't screw up
|
|
|
684 ;; the oh-so wonderful X font model. Wheee.
|
|
|
685 (let ((x (length cur-family)))
|
|
|
686 (while (> x 0)
|
|
|
687 (if (= ?- (aref cur-family (1- x)))
|
|
|
688 (aset cur-family (1- x) ? ))
|
|
|
689 (setq x (1- x))))
|
|
|
690 ;; We treat oblique and italic as equivalent. Don't ask.
|
|
|
691 (let ((slants '("o" "i")))
|
|
|
692 (while (and slants (not done))
|
|
|
693 (setq font-name (format "-*-%s-%s-%s-*-*-*-%s-*-*-*-*-%s-%s"
|
|
|
694 cur-family weight
|
|
|
695 (if (or (font-italic-p fontobj)
|
|
|
696 (font-oblique-p fontobj))
|
|
|
697 (car slants)
|
|
|
698 "r")
|
|
|
699 (if size
|
|
|
700 (int-to-string (* 10 size)) "*")
|
|
|
701 registry
|
|
|
702 encoding
|
|
|
703 )
|
|
|
704 slants (cdr slants)
|
|
|
705 done (try-font-name font-name device))))))
|
|
|
706 (if done font-name)))))
|
|
|
707
|
|
|
708
|
|
|
709 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
710 ;;; The window-system dependent code (NS-style)
|
|
|
711 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
712 (defun ns-font-families-for-device (&optional device no-resetp)
|
|
|
713 ;; For right now, assume we are going to have the same storage for
|
|
|
714 ;; device fonts for NS as we do for X. Is this a valid assumption?
|
|
|
715 (or device (setq device (selected-device)))
|
|
|
716 (if (boundp 'device-fonts-cache)
|
|
|
717 (let ((menu (or (cdr-safe (assq device device-fonts-cache)))))
|
|
|
718 (if (and (not menu) (not no-resetp))
|
|
|
719 (progn
|
|
|
720 (reset-device-font-menus device)
|
|
|
721 (ns-font-families-for-device device t))
|
|
|
722 (let ((scaled (mapcar (function (lambda (x) (if x (aref x 0))))
|
|
|
723 (aref menu 0)))
|
|
|
724 (normal (mapcar (function (lambda (x) (if x (aref x 0))))
|
|
|
725 (aref menu 1))))
|
|
|
726 (sort (font-unique (nconc scaled normal)) 'string-lessp))))))
|
|
|
727
|
|
|
728 (defun ns-font-create-name (fontobj &optional device)
|
|
|
729 (let ((family (or (font-family fontobj)
|
|
|
730 (ns-font-families-for-device device)))
|
|
|
731 (weight (or (font-weight fontobj) :medium))
|
|
|
732 (style (or (font-style fontobj) (list :normal)))
|
|
|
733 (size (font-size fontobj))
|
|
|
734 (registry (or (font-registry fontobj) "*"))
|
|
|
735 (encoding (or (font-encoding fontobj) "*")))
|
|
|
736 ;; Create a font, wow!
|
|
|
737 (if (stringp family)
|
|
|
738 (setq family (list family)))
|
|
|
739 (if (or (symbolp style) (numberp style))
|
|
|
740 (setq style (list style)))
|
|
|
741 (setq weight (font-higher-weight weight (car-safe (memq :bold style))))
|
|
|
742 (if (stringp size)
|
|
|
743 (setq size (font-spatial-to-canonical size device)))
|
|
|
744 (setq weight (or (cdr-safe (assq weight ns-font-weight-mappings))
|
|
|
745 "medium"))
|
|
|
746 (let ((done nil) ; Did we find a good font yet?
|
|
|
747 (font-name nil) ; font name we are currently checking
|
|
|
748 (cur-family nil) ; current family we are checking
|
|
|
749 )
|
|
|
750 (while (and family (not done))
|
|
|
751 (setq cur-family (car family)
|
|
|
752 family (cdr family))
|
|
|
753 (if (assoc cur-family font-family-mappings)
|
|
|
754 ;; If the family name is an alias as defined by
|
|
|
755 ;; font-family-mappings, then append those families
|
|
|
756 ;; to the front of 'family' and continue in the loop.
|
|
|
757 (setq family (append
|
|
|
758 (cdr-safe (assoc cur-family
|
|
|
759 font-family-mappings))
|
|
|
760 family))
|
|
|
761 ;; CARL: Need help here - I am not familiar with the NS font
|
|
|
762 ;; model
|
|
|
763 (setq font-name "UNKNOWN FORMULA GOES HERE"
|
|
|
764 done (try-font-name font-name device))))
|
|
|
765 (if done font-name))))
|
|
|
766
|
|
|
767
|
|
|
768 ;;; Cache building code
|
|
|
769 ;;;###autoload
|
|
|
770 (defun x-font-build-cache (&optional device)
|
|
|
771 (let ((hashtable (make-hash-table :test 'equal :size 15))
|
|
|
772 (fonts (mapcar 'x-font-create-object
|
|
|
773 (x-list-fonts "-*-*-*-*-*-*-*-*-*-*-*-*-*-*")))
|
|
|
774 (plist nil)
|
|
|
775 (cur nil))
|
|
|
776 (while fonts
|
|
|
777 (setq cur (car fonts)
|
|
|
778 fonts (cdr fonts)
|
|
|
779 plist (cl-gethash (car (font-family cur)) hashtable))
|
|
|
780 (if (not (memq (font-weight cur) (plist-get plist 'weights)))
|
|
|
781 (setq plist (plist-put plist 'weights (cons (font-weight cur)
|
|
|
782 (plist-get plist 'weights)))))
|
|
|
783 (if (not (member (font-size cur) (plist-get plist 'sizes)))
|
|
|
784 (setq plist (plist-put plist 'sizes (cons (font-size cur)
|
|
|
785 (plist-get plist 'sizes)))))
|
|
|
786 (if (and (font-oblique-p cur)
|
|
|
787 (not (memq 'oblique (plist-get plist 'styles))))
|
|
|
788 (setq plist (plist-put plist 'styles (cons 'oblique (plist-get plist 'styles)))))
|
|
|
789 (if (and (font-italic-p cur)
|
|
|
790 (not (memq 'italic (plist-get plist 'styles))))
|
|
|
791 (setq plist (plist-put plist 'styles (cons 'italic (plist-get plist 'styles)))))
|
|
|
792 (cl-puthash (car (font-family cur)) plist hashtable))
|
|
|
793 hashtable))
|
|
|
794
|
|
|
795
|
|
|
796 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
797 ;;; Now overwrite the original copy of set-face-font with our own copy that
|
|
|
798 ;;; can deal with either syntax.
|
|
|
799 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
800 ;;; ###autoload
|
|
|
801 (defun font-set-face-font (&optional face font &rest args)
|
|
|
802 (cond
|
|
|
803 ((and (vectorp font) (= (length font) 12))
|
|
|
804 (let ((font-name (font-create-name font)))
|
|
|
805 (set-face-property face 'font-specification font)
|
|
|
806 (cond
|
|
|
807 ((null font-name) ; No matching font!
|
|
|
808 nil)
|
|
|
809 ((listp font-name) ; For TTYs
|
|
|
810 (let (cur)
|
|
|
811 (while font-name
|
|
|
812 (setq cur (car font-name)
|
|
|
813 font-name (cdr font-name))
|
|
|
814 (apply 'set-face-property face (car cur) (cdr cur) args))))
|
|
|
815 (font-running-xemacs
|
|
|
816 (apply 'set-face-font face font-name args)
|
|
|
817 (apply 'set-face-underline-p face (font-underline-p font) args)
|
|
|
818 (if (and (or (font-smallcaps-p font) (font-bigcaps-p font))
|
|
|
819 (fboundp 'set-face-display-table))
|
|
|
820 (apply 'set-face-display-table
|
|
|
821 face font-caps-display-table args))
|
|
|
822 (apply 'set-face-property face 'strikethru (or
|
|
|
823 (font-linethrough-p font)
|
|
|
824 (font-strikethru-p font))
|
|
|
825 args))
|
|
|
826 (t
|
|
|
827 (condition-case nil
|
|
|
828 (apply 'set-face-font face font-name args)
|
|
|
829 (error
|
|
|
830 (let ((args (car-safe args)))
|
|
|
831 (and (or (font-bold-p font)
|
|
|
832 (memq (font-weight font) '(:bold :demi-bold)))
|
|
|
833 (make-face-bold face args t))
|
|
|
834 (and (font-italic-p font) (make-face-italic face args t)))))
|
|
|
835 (apply 'set-face-underline-p face (font-underline-p font) args)))))
|
|
|
836 (t
|
|
|
837 ;; Let the original set-face-font signal any errors
|
|
|
838 (set-face-property face 'font-specification nil)
|
|
|
839 (apply 'set-face-font face font args))))
|
|
|
840
|
|
|
841
|
|
|
842 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
843 ;;; Now for emacsen specific stuff
|
|
|
844 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
845 (defun font-update-device-fonts (device)
|
|
|
846 ;; Update all faces that were created with the 'font' package
|
|
|
847 ;; to appear correctly on the new device. This should be in the
|
|
|
848 ;; create-device-hook. This is XEmacs 19.12+ specific
|
|
|
849 (let ((faces (face-list 2))
|
|
|
850 (cur nil)
|
|
|
851 (font nil)
|
|
|
852 (font-spec nil))
|
|
|
853 (while faces
|
|
|
854 (setq cur (car faces)
|
|
|
855 faces (cdr faces)
|
|
|
856 font-spec (face-property cur 'font-specification))
|
|
|
857 (if font-spec
|
|
|
858 (set-face-font cur font-spec device)))))
|
|
|
859
|
|
|
860 (defun font-update-one-face (face &optional device-list)
|
|
|
861 ;; Update FACE on all devices in DEVICE-LIST
|
|
|
862 ;; DEVICE_LIST defaults to a list of all active devices
|
|
|
863 (setq device-list (or device-list (device-list)))
|
|
|
864 (if (devicep device-list)
|
|
|
865 (setq device-list (list device-list)))
|
|
|
866 (let* ((cur-device nil)
|
|
|
867 (font-spec (face-property face 'font-specification))
|
|
|
868 (font nil))
|
|
|
869 (if (not font-spec)
|
|
|
870 ;; Hey! Don't mess with fonts we didn't create in the
|
|
|
871 ;; first place.
|
|
|
872 nil
|
|
|
873 (while device-list
|
|
|
874 (setq cur-device (car device-list)
|
|
|
875 device-list (cdr device-list))
|
|
|
876 (if (not (device-live-p cur-device))
|
|
|
877 ;; Whoah!
|
|
|
878 nil
|
|
|
879 (if font-spec
|
|
|
880 (set-face-font face font-spec cur-device)))))))
|
|
|
881
|
|
|
882 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
883 ;;; Various color related things
|
|
|
884 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
885 (cond
|
|
|
886 ((fboundp 'display-warning)
|
|
|
887 (fset 'font-warn 'display-warning))
|
|
|
888 ((fboundp 'w3-warn)
|
|
|
889 (fset 'font-warn 'w3-warn))
|
|
|
890 ((fboundp 'url-warn)
|
|
|
891 (fset 'font-warn 'url-warn))
|
|
|
892 ((fboundp 'warn)
|
|
|
893 (defun font-warn (class message &optional level)
|
|
|
894 (warn "(%s/%s) %s" class (or level 'warning) message)))
|
|
|
895 (t
|
|
|
896 (defun font-warn (class message &optional level)
|
|
|
897 (save-excursion
|
|
|
898 (set-buffer (get-buffer-create "*W3-WARNINGS*"))
|
|
|
899 (goto-char (point-max))
|
|
|
900 (save-excursion
|
|
|
901 (insert (format "(%s/%s) %s\n" class (or level 'warning) message)))
|
|
|
902 (display-buffer (current-buffer))))))
|
|
|
903
|
|
|
904 (defun font-lookup-rgb-components (color)
|
|
|
905 "Lookup COLOR (a color name) in rgb.txt and return a list of RGB values.
|
|
|
906 The list (R G B) is returned, or an error is signaled if the lookup fails."
|
|
|
907 (let ((lib-list (if (boundp 'x-library-search-path)
|
|
|
908 x-library-search-path
|
|
|
909 ;; This default is from XEmacs 19.13 - hope it covers
|
|
|
910 ;; everyone.
|
|
|
911 (list "/usr/X11R6/lib/X11/"
|
|
|
912 "/usr/X11R5/lib/X11/"
|
|
|
913 "/usr/lib/X11R6/X11/"
|
|
|
914 "/usr/lib/X11R5/X11/"
|
|
|
915 "/usr/local/X11R6/lib/X11/"
|
|
|
916 "/usr/local/X11R5/lib/X11/"
|
|
|
917 "/usr/local/lib/X11R6/X11/"
|
|
|
918 "/usr/local/lib/X11R5/X11/"
|
|
|
919 "/usr/X11/lib/X11/"
|
|
|
920 "/usr/lib/X11/"
|
|
|
921 "/usr/local/lib/X11/"
|
|
|
922 "/usr/X386/lib/X11/"
|
|
|
923 "/usr/x386/lib/X11/"
|
|
|
924 "/usr/XFree86/lib/X11/"
|
|
|
925 "/usr/unsupported/lib/X11/"
|
|
|
926 "/usr/athena/lib/X11/"
|
|
|
927 "/usr/local/x11r5/lib/X11/"
|
|
|
928 "/usr/lpp/Xamples/lib/X11/"
|
|
|
929 "/usr/openwin/lib/X11/"
|
|
|
930 "/usr/openwin/share/lib/X11/")))
|
|
|
931 (file font-rgb-file)
|
|
|
932 r g b)
|
|
|
933 (if (not file)
|
|
|
934 (while lib-list
|
|
|
935 (setq file (expand-file-name "rgb.txt" (car lib-list)))
|
|
|
936 (if (file-readable-p file)
|
|
|
937 (setq lib-list nil
|
|
|
938 font-rgb-file file)
|
|
|
939 (setq lib-list (cdr lib-list)
|
|
|
940 file nil))))
|
|
|
941 (if (null file)
|
|
|
942 (list 0 0 0)
|
|
|
943 (save-excursion
|
|
|
944 (set-buffer (find-file-noselect file))
|
|
|
945 (if (not (= (aref (buffer-name) 0) ? ))
|
|
|
946 (rename-buffer (generate-new-buffer-name " *rgb-tmp-buffer*")))
|
|
|
947 (save-excursion
|
|
|
948 (save-restriction
|
|
|
949 (widen)
|
|
|
950 (goto-char (point-min))
|
|
|
951 (if (re-search-forward (format "\t%s$" (regexp-quote color)) nil t)
|
|
|
952 (progn
|
|
|
953 (beginning-of-line)
|
|
|
954 (setq r (* (read (current-buffer)) 256)
|
|
|
955 g (* (read (current-buffer)) 256)
|
|
|
956 b (* (read (current-buffer)) 256)))
|
|
|
957 (font-warn 'color (format "No such color: %s" color))
|
|
|
958 (setq r 0
|
|
|
959 g 0
|
|
|
960 b 0))
|
|
|
961 (list r g b) ))))))
|
|
|
962
|
|
|
963 (defun font-hex-string-to-number (string)
|
|
|
964 "Convert STRING to an integer by parsing it as a hexadecimal number."
|
|
|
965 (let ((conv-list '((?0 . 0) (?a . 10) (?A . 10)
|
|
|
966 (?1 . 1) (?b . 11) (?B . 11)
|
|
|
967 (?2 . 2) (?c . 12) (?C . 12)
|
|
|
968 (?3 . 3) (?d . 13) (?D . 13)
|
|
|
969 (?4 . 4) (?e . 14) (?E . 14)
|
|
|
970 (?5 . 5) (?f . 15) (?F . 15)
|
|
|
971 (?6 . 6)
|
|
|
972 (?7 . 7)
|
|
|
973 (?8 . 8)
|
|
|
974 (?9 . 9)))
|
|
|
975 (n 0)
|
|
|
976 (i 0)
|
|
|
977 (lim (length string)))
|
|
|
978 (while (< i lim)
|
|
|
979 (setq n (+ (* n 16) (or (cdr (assq (aref string i) conv-list)) 0))
|
|
|
980 i (1+ i)))
|
|
|
981 n ))
|
|
|
982
|
|
|
983 (defun font-parse-rgb-components (color)
|
|
|
984 "Parse RGB color specification and return a list of integers (R G B).
|
|
|
985 #FEFEFE and rgb:fe/fe/fe style specifications are parsed."
|
|
|
986 (let ((case-fold-search t)
|
|
|
987 r g b str)
|
|
|
988 (cond ((string-match "^#[0-9a-f]+$" color)
|
|
|
989 (cond
|
|
|
990 ((= (length color) 4)
|
|
|
991 (setq r (font-hex-string-to-number (substring color 1 2))
|
|
|
992 g (font-hex-string-to-number (substring color 2 3))
|
|
|
993 b (font-hex-string-to-number (substring color 3 4))
|
|
|
994 r (* r 4096)
|
|
|
995 g (* g 4096)
|
|
|
996 b (* b 4096)))
|
|
|
997 ((= (length color) 7)
|
|
|
998 (setq r (font-hex-string-to-number (substring color 1 3))
|
|
|
999 g (font-hex-string-to-number (substring color 3 5))
|
|
|
1000 b (font-hex-string-to-number (substring color 5 7))
|
|
|
1001 r (* r 256)
|
|
|
1002 g (* g 256)
|
|
|
1003 b (* b 256)))
|
|
|
1004 ((= (length color) 10)
|
|
|
1005 (setq r (font-hex-string-to-number (substring color 1 4))
|
|
|
1006 g (font-hex-string-to-number (substring color 4 7))
|
|
|
1007 b (font-hex-string-to-number (substring color 7 10))
|
|
|
1008 r (* r 16)
|
|
|
1009 g (* g 16)
|
|
|
1010 b (* b 16)))
|
|
|
1011 ((= (length color) 13)
|
|
|
1012 (setq r (font-hex-string-to-number (substring color 1 5))
|
|
|
1013 g (font-hex-string-to-number (substring color 5 9))
|
|
|
1014 b (font-hex-string-to-number (substring color 9 13))))
|
|
|
1015 (t
|
|
|
1016 (font-warn 'color (format "Invalid RGB color specification: %s"
|
|
|
1017 color))
|
|
|
1018 (setq r 0
|
|
|
1019 g 0
|
|
|
1020 b 0))))
|
|
|
1021 ((string-match "rgb:\\([0-9a-f]+\\)/\\([0-9a-f]+\\)/\\([0-9a-f]+\\)"
|
|
|
1022 color)
|
|
|
1023 (if (or (> (- (match-end 1) (match-beginning 1)) 4)
|
|
|
1024 (> (- (match-end 2) (match-beginning 2)) 4)
|
|
|
1025 (> (- (match-end 3) (match-beginning 3)) 4))
|
|
|
1026 (error "Invalid RGB color specification: %s" color)
|
|
|
1027 (setq str (match-string 1 color)
|
|
|
1028 r (* (font-hex-string-to-number str)
|
|
|
1029 (expt 16 (- 4 (length str))))
|
|
|
1030 str (match-string 2 color)
|
|
|
1031 g (* (font-hex-string-to-number str)
|
|
|
1032 (expt 16 (- 4 (length str))))
|
|
|
1033 str (match-string 3 color)
|
|
|
1034 b (* (font-hex-string-to-number str)
|
|
|
1035 (expt 16 (- 4 (length str)))))))
|
|
|
1036 (t
|
|
|
1037 (font-warn 'html (format "Invalid RGB color specification: %s"
|
|
|
1038 color))
|
|
|
1039 (setq r 0
|
|
|
1040 g 0
|
|
|
1041 b 0)))
|
|
|
1042 (list r g b) ))
|
|
|
1043
|
|
|
1044 (defsubst font-rgb-color-p (obj)
|
|
|
1045 (or (and (vectorp obj)
|
|
|
1046 (= (length obj) 4)
|
|
|
1047 (eq (aref obj 0) 'rgb))))
|
|
|
1048
|
|
|
1049 (defsubst font-rgb-color-red (obj) (aref obj 1))
|
|
|
1050 (defsubst font-rgb-color-green (obj) (aref obj 2))
|
|
|
1051 (defsubst font-rgb-color-blue (obj) (aref obj 3))
|
|
|
1052
|
|
|
1053 (defun font-color-rgb-components (color)
|
|
|
1054 "Return the RGB components of COLOR as a list of integers (R G B).
|
|
|
1055 16-bit values are always returned.
|
|
|
1056 #FEFEFE and rgb:fe/fe/fe style color specifications are parsed directly
|
|
|
1057 into their components.
|
|
|
1058 RGB values for color names are looked up in the rgb.txt file.
|
|
|
1059 The variable x-library-search-path is use to locate the rgb.txt file."
|
|
|
1060 (let ((case-fold-search t))
|
|
|
1061 (cond
|
|
|
1062 ((and (font-rgb-color-p color) (floatp (aref color 1)))
|
|
|
1063 (list (* 65535 (aref color 0))
|
|
|
1064 (* 65535 (aref color 1))
|
|
|
1065 (* 65535 (aref color 2))))
|
|
|
1066 ((font-rgb-color-p color)
|
|
|
1067 (list (font-rgb-color-red color)
|
|
|
1068 (font-rgb-color-green color)
|
|
|
1069 (font-rgb-color-blue color)))
|
|
|
1070 ((and (vectorp color) (= 3 (length color)))
|
|
|
1071 (list (aref color 0) (aref color 1) (aref color 2)))
|
|
|
1072 ((and (listp color) (= 3 (length color)) (floatp (car color)))
|
|
|
1073 (mapcar (function (lambda (x) (* x 65535))) color))
|
|
|
1074 ((and (listp color) (= 3 (length color)))
|
|
|
1075 color)
|
|
|
1076 ((or (string-match "^#" color)
|
|
|
1077 (string-match "^rgb:" color))
|
|
|
1078 (font-parse-rgb-components color))
|
|
|
1079 ((string-match "\\([0-9.]+\\)[ \t]\\([0-9.]+\\)[ \t]\\([0-9.]+\\)"
|
|
|
1080 color)
|
|
|
1081 (let ((r (string-to-number (match-string 1 color)))
|
|
|
1082 (g (string-to-number (match-string 2 color)))
|
|
|
1083 (b (string-to-number (match-string 3 color))))
|
|
|
1084 (if (floatp r)
|
|
|
1085 (setq r (round (* 255 r))
|
|
|
1086 g (round (* 255 g))
|
|
|
1087 b (round (* 255 b))))
|
|
|
1088 (font-parse-rgb-components (format "#%02x%02x%02x" r g b))))
|
|
|
1089 (t
|
|
|
1090 (font-lookup-rgb-components color)))))
|
|
|
1091
|
|
|
1092 (defsubst font-tty-compute-color-delta (col1 col2)
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1093 (+
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1094 (* (- (aref col1 0) (aref col2 0))
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1095 (- (aref col1 0) (aref col2 0)))
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1096 (* (- (aref col1 1) (aref col2 1))
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1097 (- (aref col1 1) (aref col2 1)))
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1098 (* (- (aref col1 2) (aref col2 2))
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1099 (- (aref col1 2) (aref col2 2)))))
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1100
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1101 (defun font-tty-find-closest-color (r g b)
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1102 ;; This is basically just a lisp copy of allocate_nearest_color
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1103 ;; from objects-x.c from Emacs 19
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1104 ;; We really should just check tty-color-list, but unfortunately
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1105 ;; that does not include any RGB information at all.
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1106 ;; So for now we just hardwire in the default list and call it
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1107 ;; good for now.
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1108 (setq r (/ r 65535.0)
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1109 g (/ g 65535.0)
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1110 b (/ b 65535.0))
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1111 (let* ((color_def (vector r g b))
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1112 (colors [([1.0 1.0 1.0] . "white")
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1113 ([0.0 1.0 1.0] . "cyan")
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1114 ([1.0 0.0 1.0] . "magenta")
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1115 ([0.0 0.0 1.0] . "blue")
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1116 ([1.0 1.0 0.0] . "yellow")
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1117 ([0.0 1.0 0.0] . "green")
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1118 ([1.0 0.0 0.0] . "red")
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1119 ([0.0 0.0 0.0] . "black")])
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1120 (no_cells (length colors))
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1121 (x 1)
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1122 (nearest 0)
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1123 (nearest_delta 0)
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1124 (trial_delta 0))
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1125 (setq nearest_delta (font-tty-compute-color-delta (car (aref colors 0))
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1126 color_def))
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1127 (while (/= no_cells x)
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1128 (setq trial_delta (font-tty-compute-color-delta (car (aref colors x))
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1129 color_def))
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1130 (if (< trial_delta nearest_delta)
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1131 (setq nearest x
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1132 nearest_delta trial_delta))
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1133 (setq x (1+ x)))
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1134 (cdr-safe (aref colors nearest))))
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1135
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1136 (defun font-normalize-color (color &optional device)
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1137 "Return an RGB tuple, given any form of input. If an error occurs, black
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1138 is returned."
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1139 (case (device-type device)
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1140 ((x pm)
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1141 (apply 'format "#%02x%02x%02x" (font-color-rgb-components color)))
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1142 (mswindows
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1143 (let* ((rgb (font-color-rgb-components color))
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1144 (color (apply 'format "#%02x%02x%02x" rgb)))
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1145 (mswindows-define-rgb-color (nth 0 rgb) (nth 1 rgb) (nth 2 rgb) color)
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1146 color))
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1147 (tty
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1148 (apply 'font-tty-find-closest-color (font-color-rgb-components color)))
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1149 (ns
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1150 (let ((vals (mapcar (function (lambda (x) (>> x 8)))
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1151 (font-color-rgb-components color))))
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1152 (apply 'format "RGB%02x%02x%02xff" vals)))
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1153 (otherwise
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1154 color)))
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1155
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1156 (defun font-set-face-background (&optional face color &rest args)
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1157 (interactive)
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1158 (condition-case nil
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1159 (cond
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1160 ((or (font-rgb-color-p color)
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1161 (string-match "^#[0-9a-fA-F]+$" color))
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1162 (apply 'set-face-background face
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1163 (font-normalize-color color) args))
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1164 (t
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1165 (apply 'set-face-background face color args)))
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1166 (error nil)))
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1167
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1168 (defun font-set-face-foreground (&optional face color &rest args)
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1169 (interactive)
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1170 (condition-case nil
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|
1171 (cond
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1172 ((or (font-rgb-color-p color)
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|
1173 (string-match "^#[0-9a-fA-F]+$" color))
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1174 (apply 'set-face-foreground face (font-normalize-color color) args))
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1175 (t
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1176 (apply 'set-face-foreground face color args)))
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1177 (error nil)))
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1178
|
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|
1179 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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1180 ;;; Support for 'blinking' fonts
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1181 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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1182 (defun font-map-windows (func &optional arg frame)
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|
1183 (let* ((start (selected-window))
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|
1184 (cur start)
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|
|
1185 (result nil))
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|
1186 (push (funcall func start arg) result)
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|
1187 (while (not (eq start (setq cur (next-window cur))))
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|
1188 (push (funcall func cur arg) result))
|
|
|
1189 result))
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1190
|
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|
1191 (defun font-face-visible-in-window-p (window face)
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|
1192 (let ((st (window-start window))
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|
|
1193 (nd (window-end window))
|
|
|
1194 (found nil)
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|
|
1195 (face-at nil))
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|
1196 (setq face-at (get-text-property st 'face (window-buffer window)))
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|
1197 (if (or (eq face face-at) (and (listp face-at) (memq face face-at)))
|
|
|
1198 (setq found t))
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|
|
1199 (while (and (not found)
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|
1200 (/= nd
|
|
|
1201 (setq st (next-single-property-change
|
|
|
1202 st 'face
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|
1203 (window-buffer window) nd))))
|
|
|
1204 (setq face-at (get-text-property st 'face (window-buffer window)))
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|
|
1205 (if (or (eq face face-at) (and (listp face-at) (memq face face-at)))
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|
|
1206 (setq found t)))
|
|
|
1207 found))
|
|
|
1208
|
|
|
1209 (defun font-blink-callback ()
|
|
|
1210 ;; Optimized to never invert the face unless one of the visible windows
|
|
|
1211 ;; is showing it.
|
|
|
1212 (let ((faces (if font-running-xemacs (face-list t) (face-list)))
|
|
|
1213 (obj nil))
|
|
|
1214 (while faces
|
|
|
1215 (if (and (setq obj (face-property (car faces) 'font-specification))
|
|
|
1216 (font-blink-p obj)
|
|
|
1217 (memq t
|
|
|
1218 (font-map-windows 'font-face-visible-in-window-p (car faces))))
|
|
|
1219 (invert-face (car faces)))
|
|
|
1220 (pop faces))))
|
|
|
1221
|
|
|
1222 (defcustom font-blink-interval 0.5
|
|
|
1223 "How often to blink faces"
|
|
|
1224 :type 'number
|
|
|
1225 :group 'faces)
|
|
|
1226
|
|
|
1227 (defun font-blink-initialize ()
|
|
|
1228 (cond
|
|
|
1229 ((featurep 'itimer)
|
|
|
1230 (if (get-itimer "font-blinker")
|
|
|
1231 (delete-itimer (get-itimer "font-blinker")))
|
|
|
1232 (start-itimer "font-blinker" 'font-blink-callback
|
|
|
1233 font-blink-interval
|
|
|
1234 font-blink-interval))
|
|
|
1235 ((fboundp 'run-at-time)
|
|
|
1236 (cancel-function-timers 'font-blink-callback)
|
|
|
1237 (run-at-time font-blink-interval
|
|
|
1238 font-blink-interval
|
|
|
1239 'font-blink-callback))
|
|
|
1240 (t nil)))
|
|
|
1241
|
|
|
1242 (provide 'font)
|
