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1 ;;; objects.el --- Lisp interface to C window-system objects
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2
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3 ;; Copyright (C) 1994, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995 Ben Wing
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5
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6 ;; Author: Chuck Thompson <cthomp@xemacs.org>
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7 ;; Author: Ben Wing <ben@xemacs.org>
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8 ;; Maintainer: XEmacs Development Team
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9 ;; Keywords: faces, 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, 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 in FSF.
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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.
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33
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34 ;;; Code:
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35
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36 (defun ws-object-property-1 (function object domain &optional matchspec)
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37 (let ((instance (if matchspec
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38 (specifier-matching-instance object matchspec domain)
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39 (specifier-instance object domain))))
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40 (and instance (funcall function instance))))
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41
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42 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; font specifiers
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43
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44 (defun make-font-specifier (spec-list)
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45 "Return a new `font' specifier object with the given specification list.
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46 SPEC-LIST can be a list of specifications (each of which is a cons of a
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47 locale and a list of instantiators), a single instantiator, or a list
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48 of instantiators. See `make-specifier' for more information about
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442
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49 specifiers.
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50
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51 Valid instantiators for font specifiers are:
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52
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3111
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53 -- a string naming a font; syntax is platform dependent. Some examples for
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54 a 14-point upright medium-weight Courier font:
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55 X11 (and GTK1): \"-*-courier-medium-r-*-*-*-140-*-*-*-*-iso8859-*\"
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56 Xft (and GTK2): \"Courier-14\"
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57 MS-Windows: \"Courier:14:Western\"
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442
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58 -- a font instance (use that instance directly if the device matches,
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59 or use the string that generated it)
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60 -- a vector of no elements (only on TTY's; this means to set no font
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61 at all, thus using the \"natural\" font of the terminal's text)
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62 -- a vector of one element (a face to inherit from)
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63 "
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428
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64 (make-specifier-and-init 'font spec-list))
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65
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66 (defun font-name (font &optional domain charset)
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67 "Return the name of the FONT in the specified DOMAIN, if any.
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68 FONT should be a font specifier object and DOMAIN is normally a window
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69 and defaults to the selected window if omitted. This is equivalent
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70 to using `specifier-instance' and applying `font-instance-name' to
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71 the result. See `make-specifier' for more information about specifiers."
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72 (ws-object-property-1 'font-instance-name font domain charset))
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73
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74 (defun font-ascent (font &optional domain charset)
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75 "Return the ascent of the FONT in the specified DOMAIN, if any.
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76 FONT should be a font specifier object and DOMAIN is normally a window
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77 and defaults to the selected window if omitted. This is equivalent
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78 to using `specifier-instance' and applying `font-instance-ascent' to
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79 the result. See `make-specifier' for more information about specifiers."
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80 (ws-object-property-1 'font-instance-ascent font domain charset))
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81
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82 (defun font-descent (font &optional domain charset)
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83 "Return the descent of the FONT in the specified DOMAIN, if any.
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84 FONT should be a font specifier object and DOMAIN is normally a window
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85 and defaults to the selected window if omitted. This is equivalent
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86 to using `specifier-instance' and applying `font-instance-descent' to
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87 the result. See `make-specifier' for more information about specifiers."
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88 (ws-object-property-1 'font-instance-descent font domain charset))
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89
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90 (defun font-width (font &optional domain charset)
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91 "Return the width of the FONT in the specified DOMAIN, if any.
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92 FONT should be a font specifier object and DOMAIN is normally a window
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93 and defaults to the selected window if omitted. This is equivalent
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94 to using `specifier-instance' and applying `font-instance-width' to
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95 the result. See `make-specifier' for more information about specifiers."
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96 (ws-object-property-1 'font-instance-width font domain charset))
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97
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98 (defun font-height (font &optional domain charset)
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99 "Return the height of the FONT in the specified DOMAIN, if any.
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100 FONT should be a font specifier object and DOMAIN is normally a window
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101 and defaults to the selected window if omitted. This is equivalent
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102 to using `specifier-instance' and applying `font-instance-height' to
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103 the result. See `make-specifier' for more information about specifiers."
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104 (ws-object-property-1 'font-instance-height font domain charset))
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105
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106 (defun font-proportional-p (font &optional domain charset)
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107 "Return whether FONT is proportional in the specified DOMAIN, if known.
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108 FONT should be a font specifier object and DOMAIN is normally a window
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109 and defaults to the selected window if omitted. This is equivalent
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110 to using `specifier-instance' and applying `font-instance-proportional-p' to
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111 the result. See `make-specifier' for more information about specifiers."
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112 (ws-object-property-1 'font-instance-proportional-p font domain charset))
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113
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114 (defun font-properties (font &optional domain charset)
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115 "Return the properties of the FONT in the specified DOMAIN, if any.
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116 FONT should be a font specifier object and DOMAIN is normally a window
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117 and defaults to the selected window if omitted. This is equivalent
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118 to using `specifier-instance' and applying `font-instance-properties'
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119 to the result. See `make-specifier' for more information about specifiers."
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120 (ws-object-property-1 'font-instance-properties font domain charset))
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121
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122 (defun font-truename (font &optional domain charset)
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123 "Return the truename of the FONT in the specified DOMAIN, if any.
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124 FONT should be a font specifier object and DOMAIN is normally a window
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125 and defaults to the selected window if omitted. This is equivalent
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126 to using `specifier-instance' and applying `font-instance-truename'
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127 to the result. See `make-specifier' for more information about specifiers."
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128 (ws-object-property-1 'font-instance-truename font domain charset))
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129
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130 (defun font-instance-height (font-instance)
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131 "Return the height in pixels of FONT-INSTANCE.
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132 The returned value is the maximum height for all characters in the font,\n\
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133 and is equivalent to the sum of the font instance's ascent and descent."
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134 (+ (font-instance-ascent font-instance)
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135 (font-instance-descent font-instance)))
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136
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137 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; color specifiers
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138
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139 (defun make-color-specifier (spec-list)
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140 "Return a new `color' specifier object with the given specification list.
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141 SPEC-LIST can be a list of specifications (each of which is a cons of a
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142 locale and a list of instantiators), a single instantiator, or a list
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143 of instantiators. See `make-specifier' for a detailed description of
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442
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144 how specifiers work.
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145
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146 Valid instantiators for color specifiers are:
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147
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148 -- a string naming a color (e.g. under X this might be \"lightseagreen2\"
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149 or \"#F534B2\")
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150 -- a color instance (use that instance directly if the device matches,
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151 or use the string that generated it)
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152 -- a vector of no elements (only on TTY's; this means to set no color
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153 at all, thus using the \"natural\" color of the terminal's text)
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154 -- a vector of one or two elements: a face to inherit from, and
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155 optionally a symbol naming which property of that face to inherit,
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156 either `foreground' or `background' (if omitted, defaults to the same
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157 property that this color specifier is used for; if this specifier is
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158 not part of a face, the instantiator would not be valid)."
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428
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159 (make-specifier-and-init 'color spec-list))
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160
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161 (defun color-name (color &optional domain)
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162 "Return the name of the COLOR in the specified DOMAIN, if any.
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163 COLOR should be a color specifier object and DOMAIN is normally a window
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164 and defaults to the selected window if omitted. This is equivalent
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165 to using `specifier-instance' and applying `color-instance-name' to
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166 the result. See `make-specifier' for more information about specifiers."
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167 (ws-object-property-1 'color-instance-name color domain))
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168
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169 (defun color-rgb-components (color &optional domain)
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170 "Return the RGB components of the COLOR in the specified DOMAIN, if any.
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171 COLOR should be a color specifier object and DOMAIN is normally a window
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172 and defaults to the selected window if omitted. This is equivalent
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173 to using `specifier-instance' and applying `color-instance-rgb-components'
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174 to the result. See `make-specifier' for more information about specifiers."
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175 (ws-object-property-1 'color-instance-rgb-components color domain))
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176
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442
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177 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; face-boolean specifiers
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178
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179 (defun make-face-boolean-specifier (spec-list)
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180 "Return a new `face-boolean' specifier object with the given spec list.
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181 SPEC-LIST can be a list of specifications (each of which is a cons of a
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182 locale and a list of instantiators), a single instantiator, or a list
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183 of instantiators. See `make-specifier' for a detailed description of
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184 how specifiers work.
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185
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186 Valid instantiators for face-boolean specifiers are
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187
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188 -- t or nil
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189 -- a vector of two or three elements: a face to inherit from,
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190 optionally a symbol naming the property of that face to inherit from
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191 (if omitted, defaults to the same property that this face-boolean
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192 specifier is used for; if this specifier is not part of a face,
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193 the instantiator would not be valid), and optionally a value which,
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194 if non-nil, means to invert the sense of the inherited property."
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195 (make-specifier-and-init 'color spec-list))
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196
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428
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197 ;;; objects.el ends here.
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