1 ;;; objects.el --- Lisp interface to C window-system objects
3 ;; Copyright (C) 1994, 1997 Free Software Foundation, Inc.
4 ;; Copyright (C) 1995 Ben Wing
6 ;; Author: Chuck Thompson <cthomp@xemacs.org>
7 ;; Author: Ben Wing <ben@xemacs.org>
8 ;; Maintainer: XEmacs Development Team
9 ;; Keywords: faces, internal, dumped
11 ;; This file is part of XEmacs.
13 ;; XEmacs is free software; you can redistribute it and/or modify it
14 ;; under the terms of the GNU General Public License as published by
15 ;; the Free Software Foundation; either version 2, or (at your option)
18 ;; XEmacs is distributed in the hope that it will be useful, but
19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 ;; General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with XEmacs; see the file COPYING. If not, write to the
25 ;; Free Software Foundation, 59 Temple Place - Suite 330,
26 ;; Boston, MA 02111-1307, USA.
28 ;;; Synched up with: Not in FSF.
32 ;; This file is dumped with XEmacs.
36 (defun ws-object-property-1 (function object domain &optional matchspec)
37 (let ((instance (if matchspec
38 (specifier-matching-instance object matchspec domain)
39 (specifier-instance object domain))))
40 (and instance (funcall function instance))))
42 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; font specifiers
44 (defun make-font-specifier (spec-list)
45 "Return a new `font' specifier object with the given specification list.
46 SPEC-LIST can be a list of specifications (each of which is a cons of a
47 locale and a list of instantiators), a single instantiator, or a list
48 of instantiators. See `make-specifier' for more information about
51 Valid instantiators for font specifiers are:
53 -- a string naming a font (e.g. under X this might be
54 \"-*-courier-medium-r-*-*-*-140-*-*-*-*-iso8859-*\" for a 14-point
55 upright medium-weight Courier font)
56 -- a font instance (use that instance directly if the device matches,
57 or use the string that generated it)
58 -- a vector of no elements (only on TTY's; this means to set no font
59 at all, thus using the \"natural\" font of the terminal's text)
60 -- a vector of one element (a face to inherit from)
62 (make-specifier-and-init 'font spec-list))
64 (defun font-name (font &optional domain charset)
65 "Return the name of the FONT in the specified DOMAIN, if any.
66 FONT should be a font specifier object and DOMAIN is normally a window
67 and defaults to the selected window if omitted. This is equivalent
68 to using `specifier-instance' and applying `font-instance-name' to
69 the result. See `make-specifier' for more information about specifiers."
70 (ws-object-property-1 'font-instance-name font domain charset))
72 (defun font-ascent (font &optional domain charset)
73 "Return the ascent of the FONT in the specified DOMAIN, if any.
74 FONT should be a font specifier object and DOMAIN is normally a window
75 and defaults to the selected window if omitted. This is equivalent
76 to using `specifier-instance' and applying `font-instance-ascent' to
77 the result. See `make-specifier' for more information about specifiers."
78 (ws-object-property-1 'font-instance-ascent font domain charset))
80 (defun font-descent (font &optional domain charset)
81 "Return the descent of the FONT in the specified DOMAIN, if any.
82 FONT should be a font specifier object and DOMAIN is normally a window
83 and defaults to the selected window if omitted. This is equivalent
84 to using `specifier-instance' and applying `font-instance-descent' to
85 the result. See `make-specifier' for more information about specifiers."
86 (ws-object-property-1 'font-instance-descent font domain charset))
88 (defun font-width (font &optional domain charset)
89 "Return the width of the FONT in the specified DOMAIN, if any.
90 FONT should be a font specifier object and DOMAIN is normally a window
91 and defaults to the selected window if omitted. This is equivalent
92 to using `specifier-instance' and applying `font-instance-width' to
93 the result. See `make-specifier' for more information about specifiers."
94 (ws-object-property-1 'font-instance-width font domain charset))
96 (defun font-height (font &optional domain charset)
97 "Return the height of the FONT in the specified DOMAIN, if any.
98 FONT should be a font specifier object and DOMAIN is normally a window
99 and defaults to the selected window if omitted. This is equivalent
100 to using `specifier-instance' and applying `font-instance-height' to
101 the result. See `make-specifier' for more information about specifiers."
102 (ws-object-property-1 'font-instance-height font domain charset))
104 (defun font-proportional-p (font &optional domain charset)
105 "Return whether FONT is proportional in the specified DOMAIN, if known.
106 FONT should be a font specifier object and DOMAIN is normally a window
107 and defaults to the selected window if omitted. This is equivalent
108 to using `specifier-instance' and applying `font-instance-proportional-p' to
109 the result. See `make-specifier' for more information about specifiers."
110 (ws-object-property-1 'font-instance-proportional-p font domain charset))
112 (defun font-properties (font &optional domain charset)
113 "Return the properties of the FONT in the specified DOMAIN, if any.
114 FONT should be a font specifier object and DOMAIN is normally a window
115 and defaults to the selected window if omitted. This is equivalent
116 to using `specifier-instance' and applying `font-instance-properties'
117 to the result. See `make-specifier' for more information about specifiers."
118 (ws-object-property-1 'font-instance-properties font domain charset))
120 (defun font-truename (font &optional domain charset)
121 "Return the truename of the FONT in the specified DOMAIN, if any.
122 FONT should be a font specifier object and DOMAIN is normally a window
123 and defaults to the selected window if omitted. This is equivalent
124 to using `specifier-instance' and applying `font-instance-truename'
125 to the result. See `make-specifier' for more information about specifiers."
126 (ws-object-property-1 'font-instance-truename font domain charset))
128 (defun font-instance-height (font-instance)
129 "Return the height in pixels of FONT-INSTANCE.
130 The returned value is the maximum height for all characters in the font,\n\
131 and is equivalent to the sum of the font instance's ascent and descent."
132 (+ (font-instance-ascent font-instance)
133 (font-instance-descent font-instance)))
135 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; color specifiers
137 (defun make-color-specifier (spec-list)
138 "Return a new `color' specifier object with the given specification list.
139 SPEC-LIST can be a list of specifications (each of which is a cons of a
140 locale and a list of instantiators), a single instantiator, or a list
141 of instantiators. See `make-specifier' for a detailed description of
144 Valid instantiators for color specifiers are:
146 -- a string naming a color (e.g. under X this might be \"lightseagreen2\"
148 -- a color instance (use that instance directly if the device matches,
149 or use the string that generated it)
150 -- a vector of no elements (only on TTY's; this means to set no color
151 at all, thus using the \"natural\" color of the terminal's text)
152 -- a vector of one or two elements: a face to inherit from, and
153 optionally a symbol naming which property of that face to inherit,
154 either `foreground' or `background' (if omitted, defaults to the same
155 property that this color specifier is used for; if this specifier is
156 not part of a face, the instantiator would not be valid)."
157 (make-specifier-and-init 'color spec-list))
159 (defun color-name (color &optional domain)
160 "Return the name of the COLOR in the specified DOMAIN, if any.
161 COLOR should be a color specifier object and DOMAIN is normally a window
162 and defaults to the selected window if omitted. This is equivalent
163 to using `specifier-instance' and applying `color-instance-name' to
164 the result. See `make-specifier' for more information about specifiers."
165 (ws-object-property-1 'color-instance-name color domain))
167 (defun color-rgb-components (color &optional domain)
168 "Return the RGB components of the COLOR in the specified DOMAIN, if any.
169 COLOR should be a color specifier object and DOMAIN is normally a window
170 and defaults to the selected window if omitted. This is equivalent
171 to using `specifier-instance' and applying `color-instance-rgb-components'
172 to the result. See `make-specifier' for more information about specifiers."
173 (ws-object-property-1 'color-instance-rgb-components color domain))
175 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; face-boolean specifiers
177 (defun make-face-boolean-specifier (spec-list)
178 "Return a new `face-boolean' specifier object with the given spec list.
179 SPEC-LIST can be a list of specifications (each of which is a cons of a
180 locale and a list of instantiators), a single instantiator, or a list
181 of instantiators. See `make-specifier' for a detailed description of
184 Valid instantiators for face-boolean specifiers are
187 -- a vector of two or three elements: a face to inherit from,
188 optionally a symbol naming the property of that face to inherit from
189 (if omitted, defaults to the same property that this face-boolean
190 specifier is used for; if this specifier is not part of a face,
191 the instantiator would not be valid), and optionally a value which,
192 if non-nil, means to invert the sense of the inherited property."
193 (make-specifier-and-init 'color spec-list))
195 ;;; objects.el ends here.