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462
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1 ;;; gtk-faces.el --- GTK-specific face frobnication, aka black magic.
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2
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3 ;; Copyright (C) 1992-4, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995, 1996 Ben Wing.
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5 ;; Copyright (c) 2000 William Perry
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6
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7 ;; Author: William M. Perry <wmperry@gnu.org>
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8 ;; Maintainer: XEmacs Development Team
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9 ;; Keywords: extensions, internal, dumped
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10
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11 ;; This file is part of XEmacs.
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12
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13 ;; XEmacs is free software; you can redistribute it and/or modify it
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14 ;; 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 ;; XEmacs is distributed in the hope that it will be useful, but
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19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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21 ;; 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 XEmacs; 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 ;;; Synched up with: Not synched.
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29
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30 ;;; Commentary:
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31
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32 ;; This file is dumped with XEmacs (when GTK support is compiled in).
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33
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34
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35 (defun gtk-init-find-device ()
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36 (let ((dev nil)
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37 (devices (device-list)))
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38 (while (and (not dev) devices)
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39 (if (eq (device-type (car devices)) 'gtk)
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40 (setq dev (car devices)))
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41 (setq devices (cdr devices)))
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42 dev))
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43
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44 ;;; gtk-init-device-faces is responsible for initializing default
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45 ;;; values for faces on a newly created device.
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46 ;;;
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47 (defun gtk-init-device-faces (device)
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48 ;;
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49 ;; If the "default" face didn't have a font specified, try to pick one.
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50 ;;
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51 (if (not (eq (device-type device) 'gtk))
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52 nil
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53 (gtk-init-pointers)
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54 '(let* ((style (gtk-style-info device))
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55 ;;(normal 0) ; GTK_STATE_NORMAL
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56 ;;(active 1) ; GTK_STATE_ACTIVE
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57 (prelight 2) ; GTK_STATE_PRELIGHT
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58 (selected 3) ; GTK_STATE_SELECTED
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59 ;;(insensitive 4) ; GTK_STATE_INSENSITIVE
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60 )
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61 (set-face-foreground 'highlight
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62 (nth prelight (plist-get style 'text))
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63 device)
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64 (set-face-background 'highlight
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65 (nth prelight (plist-get style 'background))
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66 device)
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67 (set-face-foreground 'zmacs-region
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68 (nth selected (plist-get style 'text))
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69 device)
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70 (set-face-background 'zmacs-region
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71 (nth selected (plist-get style 'background))
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72 device))
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73 (set-face-background 'text-cursor "red3" device)))
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74
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75 ;;; This is called from `init-frame-faces', which is called from
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76 ;;; init_frame_faces() which is called from Fmake_frame(), to perform
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77 ;;; any device-specific initialization.
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78 ;;;
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79 (defun gtk-init-frame-faces (frame)
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80 )
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81
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82 ;;; gtk-init-global-faces is responsible for ensuring that the
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83 ;;; default face has some reasonable fallbacks if nothing else is
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84 ;;; specified.
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85 ;;;
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86 (defun gtk-init-global-faces ()
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87 (let* ((dev (gtk-init-find-device))
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88 (default-font (or (face-font 'default 'global)
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89 ;(plist-get (gtk-style-info dev) 'font)
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90 "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*"))
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91 (italic-font (or (gtk-make-font-italic default-font dev) default-font))
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92 (bold-font (or (gtk-make-font-bold default-font dev) default-font))
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93 (bi-font (or (gtk-make-font-bold-italic default-font dev) default-font)))
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94
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95 (or (face-font 'default 'global)
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96 (set-face-font 'default default-font 'global '(gtk default)))
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97
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98 (or (face-font 'bold 'global)
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99 (set-face-font 'bold bold-font 'global '(gtk default)))
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100
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101 (or (face-font 'bold-italic 'global)
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102 (set-face-font 'bold-italic bi-font 'global '(gtk default)))
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103
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104 (or (face-font 'italic 'global)
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105 (set-face-font 'italic italic-font 'global '(gtk default)))))
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106
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107
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108 ;;; Lots of this stolen from x-faces.el - I'm not sure if this will
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109 ;;; require a rewrite for win32 or not?
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110 (defconst gtk-font-regexp nil)
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111 (defconst gtk-font-regexp-head nil)
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112 (defconst gtk-font-regexp-head-2 nil)
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113 (defconst gtk-font-regexp-weight nil)
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114 (defconst gtk-font-regexp-slant nil)
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115 (defconst gtk-font-regexp-pixel nil)
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116 (defconst gtk-font-regexp-point nil)
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117 (defconst gtk-font-regexp-foundry-and-family nil)
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118 (defconst gtk-font-regexp-registry-and-encoding nil)
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119 (defconst gtk-font-regexp-spacing nil)
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120
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121 ;;; Regexps matching font names in "Host Portable Character Representation."
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122 ;;;
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123 (let ((- "[-?]")
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124 (foundry "[^-]*")
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125 (family "[^-]*")
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126 (weight "\\(bold\\|demibold\\|medium\\|black\\)") ; 1
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127 ; (weight\? "\\(\\*\\|bold\\|demibold\\|medium\\|\\)") ; 1
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128 (weight\? "\\([^-]*\\)") ; 1
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129 (slant "\\([ior]\\)") ; 2
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130 ; (slant\? "\\([ior?*]?\\)") ; 2
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131 (slant\? "\\([^-]?\\)") ; 2
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132 ; (swidth "\\(\\*\\|normal\\|semicondensed\\|\\)") ; 3
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133 (swidth "\\([^-]*\\)") ; 3
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134 ; (adstyle "\\(\\*\\|sans\\|\\)") ; 4
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135 (adstyle "\\([^-]*\\)") ; 4
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136 (pixelsize "\\(\\*\\|[0-9]+\\)") ; 5
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137 (pointsize "\\(\\*\\|0\\|[0-9][0-9]+\\)") ; 6
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138 ; (resx "\\(\\*\\|[0-9][0-9]+\\)") ; 7
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139 ; (resy "\\(\\*\\|[0-9][0-9]+\\)") ; 8
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140 (resx "\\([*0]\\|[0-9][0-9]+\\)") ; 7
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141 (resy "\\([*0]\\|[0-9][0-9]+\\)") ; 8
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142 (spacing "[cmp?*]")
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143 (avgwidth "\\(\\*\\|[0-9]+\\)") ; 9
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144 (registry "[^-]*") ; some fonts have omitted registries
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145 ; (encoding ".+") ; note that encoding may contain "-"...
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146 (encoding "[^-]+") ; false!
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147 )
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148 (setq gtk-font-regexp
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149 (purecopy
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150 (concat "\\`\\*?[-?*]"
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151 foundry - family - weight\? - slant\? - swidth - adstyle -
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152 pixelsize - pointsize - resx - resy - spacing - avgwidth -
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153 registry - encoding "\\'"
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154 )))
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155 (setq gtk-font-regexp-head
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156 (purecopy
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157 (concat "\\`[-?*]" foundry - family - weight\? - slant\?
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158 "\\([-*?]\\|\\'\\)")))
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159 (setq gtk-font-regexp-head-2
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160 (purecopy
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161 (concat "\\`[-?*]" foundry - family - weight\? - slant\?
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162 - swidth - adstyle - pixelsize - pointsize
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163 "\\([-*?]\\|\\'\\)")))
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164 (setq gtk-font-regexp-slant (purecopy (concat - slant -)))
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165 (setq gtk-font-regexp-weight (purecopy (concat - weight -)))
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166 ;; if we can't match any of the more specific regexps (unfortunate) then
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167 ;; look for digits; assume 2+ digits is 10ths of points, and 1-2 digits
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168 ;; is pixels. Bogus as hell.
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169 (setq gtk-font-regexp-pixel (purecopy "[-?*]\\([0-9][0-9]?\\)[-?*]"))
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170 (setq gtk-font-regexp-point (purecopy "[-?*]\\([0-9][0-9]+\\)[-?*]"))
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171 ;; the following two are used by x-font-menu.el.
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172 (setq gtk-font-regexp-foundry-and-family
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173 (purecopy (concat "\\`[-?*]" foundry - "\\(" family "\\)" -)))
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174 (setq gtk-font-regexp-registry-and-encoding
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175 (purecopy (concat - "\\(" registry "\\)" - "\\(" encoding "\\)\\'")))
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176 (setq gtk-font-regexp-spacing
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177 (purecopy (concat - "\\(" spacing "\\)" - avgwidth
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178 - registry - encoding "\\'")))
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179 )
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180
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181 (defvaralias 'x-font-regexp 'gtk-font-regexp)
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182 (defvaralias 'x-font-regexp-head 'gtk-font-regexp-head)
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183 (defvaralias 'x-font-regexp-head-2 'gtk-font-regexp-head-2)
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184 (defvaralias 'x-font-regexp-weight 'gtk-font-regexp-weight)
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185 (defvaralias 'x-font-regexp-slant 'gtk-font-regexp-slant)
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186 (defvaralias 'x-font-regexp-pixel 'gtk-font-regexp-pixel)
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187 (defvaralias 'x-font-regexp-point 'gtk-font-regexp-point)
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188 (defvaralias 'x-font-regexp-foundry-and-family 'gtk-font-regexp-foundry-and-family)
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189 (defvaralias 'x-font-regexp-registry-and-encoding 'gtk-font-regexp-registry-and-encoding)
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190 (defvaralias 'x-font-regexp-spacing 'gtk-font-regexp-spacing)
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191
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192 (defun gtk-frob-font-weight (font which)
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193 (if (font-instance-p font) (setq font (font-instance-name font)))
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194 (cond ((null font) nil)
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195 ((or (string-match gtk-font-regexp font)
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196 (string-match gtk-font-regexp-head font)
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197 (string-match gtk-font-regexp-weight font))
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198 (concat (substring font 0 (match-beginning 1)) which
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199 (substring font (match-end 1))))
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200 (t nil)))
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201
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202 (defun gtk-frob-font-slant (font which)
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203 (if (font-instance-p font) (setq font (font-instance-name font)))
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204 (cond ((null font) nil)
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205 ((or (string-match gtk-font-regexp font)
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206 (string-match gtk-font-regexp-head font))
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207 (concat (substring font 0 (match-beginning 2)) which
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208 (substring font (match-end 2))))
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209 ((string-match gtk-font-regexp-slant font)
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210 (concat (substring font 0 (match-beginning 1)) which
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211 (substring font (match-end 1))))
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212 (t nil)))
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213
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214 (defun gtk-make-font-bold (font &optional device)
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215 (or (try-font-name (gtk-frob-font-weight font "bold") device)
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216 (try-font-name (gtk-frob-font-weight font "black") device)
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217 (try-font-name (gtk-frob-font-weight font "demibold") device)))
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218
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219 (defun gtk-make-font-unbold (font &optional device)
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220 (try-font-name (gtk-frob-font-weight font "medium") device))
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221
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222 (defcustom *try-oblique-before-italic-fonts* t
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223 "*If nil, italic fonts are searched before oblique fonts.
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224 If non-nil, oblique fonts are tried before italic fonts. This is mostly
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225 applicable to adobe-courier fonts"
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226 :type 'boolean
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227 :tag "Try Oblique Before Italic Fonts"
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228 :group 'x)
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229
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230 (defun gtk-make-font-italic (font &optional device)
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231 (if *try-oblique-before-italic-fonts*
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232 (or (try-font-name (gtk-frob-font-slant font "o") device)
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233 (try-font-name (gtk-frob-font-slant font "i") device))
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234 (or (try-font-name (gtk-frob-font-slant font "i") device)
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235 (try-font-name (gtk-frob-font-slant font "o") device))))
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236
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237 (defun gtk-make-font-unitalic (font &optional device)
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238 (try-font-name (gtk-frob-font-slant font "r") device))
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239
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240 (defun gtk-make-font-bold-italic (font &optional device)
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241 (if *try-oblique-before-italic-fonts*
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242 (or (try-font-name
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243 (gtk-frob-font-slant (gtk-frob-font-weight font "bold") "o") device)
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244 (try-font-name
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245 (gtk-frob-font-slant (gtk-frob-font-weight font "bold") "i") device)
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246 (try-font-name
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247 (gtk-frob-font-slant (gtk-frob-font-weight font "black") "o") device)
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248 (try-font-name
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249 (gtk-frob-font-slant (gtk-frob-font-weight font "black") "i") device)
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250 (try-font-name
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251 (gtk-frob-font-slant (gtk-frob-font-weight font "demibold") "o") device)
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252 (try-font-name
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253 (gtk-frob-font-slant (gtk-frob-font-weight font "demibold") "i") device))
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254 (or (try-font-name
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255 (gtk-frob-font-slant (gtk-frob-font-weight font "bold") "i") device)
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256 (try-font-name
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257 (gtk-frob-font-slant (gtk-frob-font-weight font "bold") "o") device)
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258 (try-font-name
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259 (gtk-frob-font-slant (gtk-frob-font-weight font "black") "i") device)
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260 (try-font-name
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261 (gtk-frob-font-slant (gtk-frob-font-weight font "black") "o") device)
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262 (try-font-name
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263 (gtk-frob-font-slant (gtk-frob-font-weight font "demibold") "i") device)
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264 (try-font-name
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265 (gtk-frob-font-slant (gtk-frob-font-weight font "demibold") "o") device))))
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266
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267 (defun gtk-choose-font ()
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268 (interactive)
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269 (require 'x-font-menu)
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270 (require 'font)
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271 (let ((locale (if font-menu-this-frame-only-p
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272 (selected-frame)
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273 nil))
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274 (dialog nil))
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275 (setq dialog (gtk-font-selection-dialog-new "Choose default font..."))
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276 (put dialog 'modal t)
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277 (put dialog 'type 'dialog)
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278
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279 (gtk-widget-set-sensitive (gtk-font-selection-dialog-apply-button dialog) nil)
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280 (gtk-signal-connect dialog 'destroy (lambda (&rest ignored) (gtk-main-quit)))
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281 (gtk-signal-connect (gtk-font-selection-dialog-ok-button dialog)
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282 'clicked
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283 (lambda (button data)
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284 (let* ((dialog (car data))
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285 (locale (cdr data))
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286 (font (font-create-object
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287 (gtk-font-selection-dialog-get-font-name dialog))))
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288 (gtk-widget-destroy dialog)
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289 (font-menu-set-font (car (font-family font)) nil (* 10 (font-size font)))))
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290 (cons dialog locale))
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291 (gtk-signal-connect (gtk-font-selection-dialog-cancel-button dialog)
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292 'clicked
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293 (lambda (button dialog)
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294 (gtk-widget-destroy dialog)) dialog)
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295
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296 (gtk-widget-show-all dialog)
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297 (gtk-main)))
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