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1 ;;; msw-faces.el --- mswindows-specific face stuff.
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2
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3 ;;; Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
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4 ;;; Copyright (C) 1995, 1996 Ben Wing.
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5
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6 ;; Author: Jamie Zawinski
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7 ;; Modified by: Chuck Thompson
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8 ;; Modified by: Ben Wing
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9 ;; Modified by: Martin Buchholz
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10 ;; Rewritten for mswindows by: Jonathan Harris
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11
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12 ;; This file is part of XEmacs.
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13
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14 ;; XEmacs is free software; you can redistribute it and/or modify it
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15 ;; under the terms of the GNU General Public License as published by
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16 ;; the Free Software Foundation; either version 2, or (at your option)
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17 ;; any later version.
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18
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19 ;; XEmacs is distributed in the hope that it will be useful, but
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20 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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22 ;; General Public License for more details.
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23
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24 ;; You should have received a copy of the GNU General Public License
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25 ;; along with XEmacs; see the file COPYING. If not, write to the
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26 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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27 ;; Boston, MA 02111-1307, USA.
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28
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29 ;; This file does the magic to parse mswindows font names, and make sure that the
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30 ;; default and modeline attributes of new frames are specified enough.
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31
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32 ;;; ensure that the default face has some reasonable fallbacks if nothing
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33 ;;; else is specified.
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34 (defun mswindows-init-device-faces (device)
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35 (or (face-font 'default 'global)
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36 (set-face-font 'default "Courier New:Regular:10")
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37 'global)
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38 (or (face-foreground 'default 'global)
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39 (set-face-foreground 'default "black" 'global 'mswindows))
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40 (or (face-background 'default 'global)
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41 (set-face-background 'default "white" 'global 'mswindows))
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42 (or (face-background 'modeline 'global)
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43 (set-face-background 'modeline "grey75" 'global 'mswindows))
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44 )
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45
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46
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47 (defun mswindows-init-frame-faces (frame)
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48 )
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49
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50
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51 ;;; Fill in missing parts of a font spec. This is primarily intended as a
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52 ;;; helper function for the functions below.
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53 ;;; mswindows fonts look like:
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215
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54 ;;; fontname[:[weight][ style][:pointsize[:effects[:charset]]]]
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213
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55 ;;; A minimal mswindows font spec looks like:
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56 ;;; Courier New
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57 ;;; A maximal mswindows font spec looks like:
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58 ;;; Courier New:Bold Italic:10:underline strikeout:ansi
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59 ;;; Missing parts of the font spec should be filled in with these values:
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60 ;;; Courier New:Normal:10::ansi
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282
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61 (defun mswindows-font-canonicalize-name (font)
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62 "Given a mswindows font or font specification, this returns its
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63 specification in canonical form."
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280
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64 (if (or (font-instance-p font)
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65 (stringp font))
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66 (let ((name (if (font-instance-p font)
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67 (font-instance-name font)
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68 font)))
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69 (cond ((string-match
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70 "^[a-zA-Z ]+:[a-zA-Z ]*:[0-9]+:[a-zA-Z ]*:[a-zA-Z 0-9]*$"
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71 name) name)
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72 ((string-match "^[a-zA-Z ]+:[a-zA-Z ]*:[0-9]+:[a-zA-Z ]*$"
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73 name) (concat name ":ansi"))
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74 ((string-match "^[a-zA-Z ]+:[a-zA-Z ]*:[0-9]+$" name)
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75 (concat name "::ansi"))
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76 ((string-match "^[a-zA-Z ]+:[a-zA-Z ]*$" name)
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77 (concat name ":10::ansi"))
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78 ((string-match "^[a-zA-Z ]+$" name)
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79 (concat name ":Normal:10::ansi"))
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80 (t "Courier New:Normal:10::ansi")))))
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213
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81
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82 (defun mswindows-make-font-bold (font &optional device)
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83 "Given a mswindows font specification, this attempts to make a bold font.
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84 If it fails, it returns nil."
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215
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85 (if (font-instance-p font)
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282
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86 (let ((name (mswindows-font-canonicalize-name font))
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221
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87 (oldwidth (font-instance-width font)))
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215
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88 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
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221
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89 (let ((newfont (make-font-instance
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90 (concat (substring name 0 (match-beginning 1))
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91 "Bold" (substring name (match-end 1)))
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92 device t)))
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93 ; Hack! on mswindows, bold fonts (even monospaced) are often wider than the
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94 ; equivalent non-bold font. Making the bold font one point smaller usually
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95 ; makes it the same width (maybe at the expense of making it one pixel shorter)
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96 (if (font-instance-p newfont)
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97 (if (> (font-instance-width newfont) oldwidth)
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98 (mswindows-find-smaller-font newfont)
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99 newfont))))))
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213
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100
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101 (defun mswindows-make-font-unbold (font &optional device)
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102 "Given a mswindows font specification, this attempts to make a non-bold font.
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103 If it fails, it returns nil."
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215
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104 (if (font-instance-p font)
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282
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105 (let ((name (mswindows-font-canonicalize-name font)))
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215
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106 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
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107 (make-font-instance (concat
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108 (substring name 0 (match-beginning 1))
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109 "Normal" (substring name (match-end 1)))
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110 device t))))
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213
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111
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112 (defun mswindows-make-font-italic (font &optional device)
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215
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113 "Given a mswindows font specification, this attempts to make an `italic'
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114 font. If it fails, it returns nil."
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115 (if (font-instance-p font)
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282
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116 (let ((name (mswindows-font-canonicalize-name font)))
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215
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117 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
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118 (make-font-instance (concat
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119 (substring name 0 (match-beginning 1))
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120 "Italic" (substring name (match-end 1)))
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121 device t))))
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213
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122
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123 (defun mswindows-make-font-unitalic (font &optional device)
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215
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124 "Given a mswindows font specification, this attempts to make a non-italic
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125 font. If it fails, it returns nil."
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126 (if (font-instance-p font)
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282
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127 (let ((name (mswindows-font-canonicalize-name font)))
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215
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128 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
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129 (make-font-instance (concat
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130 (substring name 0 (match-beginning 1))
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131 "Normal" (substring name (match-end 1)))
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132 device t))))
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213
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133
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134 (defun mswindows-make-font-bold-italic (font &optional device)
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135 "Given a mswindows font specification, this attempts to make a `bold-italic'
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136 font. If it fails, it returns nil."
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215
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137 (if (font-instance-p font)
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282
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138 (let ((name (mswindows-font-canonicalize-name font))
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221
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139 (oldwidth (font-instance-width font)))
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215
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140 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
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221
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141 (let ((newfont (make-font-instance
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142 (concat (substring name 0 (match-beginning 1))
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143 "Bold Italic" (substring name (match-end 1)))
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144 device t)))
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145 ; Hack! on mswindows, bold fonts (even monospaced) are often wider than the
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146 ; equivalent non-bold font. Making the bold font one point smaller usually
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147 ; makes it the same width (maybe at the expense of making it one pixel shorter)
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148 (if (font-instance-p newfont)
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149 (if (> (font-instance-width newfont) oldwidth)
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150 (mswindows-find-smaller-font newfont)
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151 newfont))))))
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213
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152
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153 (defun mswindows-find-smaller-font (font &optional device)
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221
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154 "Loads a new version of the given font (or font name) 1 point smaller.
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155 Returns the font if it succeeds, nil otherwise."
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215
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156 (if (font-instance-p font)
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282
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157 (let (old-size (name (mswindows-font-canonicalize-name font)))
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215
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158 (string-match "^[a-zA-Z ]+:[a-zA-Z ]*:\\([0-9]+\\):" name)
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159 (setq old-size (string-to-int
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160 (substring name (match-beginning 1) (match-end 1))))
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161 (if (> old-size 0)
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162 (make-font-instance (concat
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163 (substring name 0 (match-beginning 1))
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164 (int-to-string (- old-size 1))
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165 (substring name (match-end 1)))
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166 device t)))))
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213
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167
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168 (defun mswindows-find-larger-font (font &optional device)
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221
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169 "Loads a new version of the given font (or font name) 1 point larger.
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170 Returns the font if it succeeds, nil otherwise."
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215
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171 (if (font-instance-p font)
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282
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172 (let (old-size (name (mswindows-font-canonicalize-name font)))
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215
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173 (string-match "^[a-zA-Z ]+:[a-zA-Z ]*:\\([0-9]+\\):" name)
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174 (setq old-size (string-to-int
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175 (substring name (match-beginning 1) (match-end 1))))
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176 (make-font-instance (concat
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177 (substring name 0 (match-beginning 1))
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178 (int-to-string (+ old-size 1))
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179 (substring name (match-end 1)))
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180 device t))))
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