Mercurial > hg > xemacs-beta

comparison lisp/cus-face.el @ 209:41ff10fd062f r20-4b3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Import from CVS: tag r20-4b3
author cvs
date Mon, 13 Aug 2007 10:04:58 +0200
parents
children 78f53ef88e17
comparison
equal deleted inserted replaced
208:f427b8ec4379 209:41ff10fd062f
1 ;;; cus-face.el -- Support for Custom faces.
2 ;;
3 ;; Copyright (C) 1996, 1997 Free Software Foundation, Inc.
4 ;;
5 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
6 ;; Maintainer: Hrvoje Niksic <hniksic@srce.hr>
7 ;; Keywords: help, faces
8 ;; Version: 1.9960-x
9 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
10
11 ;;; Commentary:
12 ;;
13 ;; See `custom.el'.
14
15 ;; This file should probably be dissolved, and code moved to faces.el,
16 ;; like Stallman did.
17
18 ;;; Code:
19
20 (require 'custom)
21
22 ;; To elude the warnings for font functions.
23 (eval-when-compile
24 (require 'font))
25
26 ;;; Declaring a face.
27
28 ;;;###autoload
29 (defun custom-declare-face (face spec doc &rest args)
30 "Like `defface', but FACE is evaluated as a normal argument."
31 ;; (when (fboundp 'load-gc)
32 ;; (error "Attempt to declare a face during dump"))
33 (unless (get face 'face-defface-spec)
34 (put face 'face-defface-spec spec)
35 (unless (find-face face)
36 ;; If the user has already created the face, respect that.
37 (let ((value (or (get face 'saved-face) spec))
38 (frames (relevant-custom-frames))
39 frame)
40 ;; Create global face.
41 (make-empty-face face)
42 (face-display-set face value)
43 ;; Create frame local faces
44 (while frames
45 (setq frame (car frames)
46 frames (cdr frames))
47 (face-display-set face value frame))
48 (init-face-from-resources face)))
49 (when (and doc (null (face-doc-string face)))
50 (set-face-doc-string face doc))
51 (custom-handle-all-keywords face args 'custom-face)
52 (run-hooks 'custom-define-hook))
53 face)
54
55 ;;; Font Attributes.
56
57 (defconst custom-face-attributes
58 '((:bold (boolean :tag "Bold"
59 :help-echo "Control whether a bold font should be used.")
60 custom-set-face-bold custom-face-bold)
61 (:italic (boolean :tag "Italic"
62 :help-echo "\
63 Control whether an italic font should be used.")
64 custom-set-face-italic custom-face-italic)
65 (:underline (boolean :tag "Underline"
66 :help-echo "\
67 Control whether the text should be underlined.")
68 set-face-underline-p face-underline-p)
69 (:foreground (color :tag "Foreground"
70 :value ""
71 :help-echo "Set foreground color.")
72 set-face-foreground face-foreground-name)
73 (:background (color :tag "Background"
74 :value ""
75 :help-echo "Set background color.")
76 set-face-background face-background-name)
77 ;; #### Should make it work on X
78 (:inverse-video (boolean :tag "Inverse"
79 :help-echo "\
80 Control whether the text should be inverted. Works only on TTY-s")
81 set-face-reverse-p face-reverse-p)
82 (:stipple (editable-field :format "Stipple: %v"
83 :help-echo "Name of background bitmap file.")
84 set-face-background-pixmap custom-face-stipple)
85 (:family (editable-field :format "Font Family: %v"
86 :help-echo "\
87 Name of font family to use (e.g. times).")
88 custom-set-face-font-family custom-face-font-family)
89 (:size (editable-field :format "Size: %v"
90 :help-echo "\
91 Text size (e.g. 9pt or 2mm).")
92 custom-set-face-font-size custom-face-font-size)
93 (:strikethru (toggle :format "%[Strikethru%]: %v\n"
94 :help-echo "\
95 Control whether the text should be strikethru.")
96 set-face-strikethru-p face-strikethru-p))
97 "Alist of face attributes.
98
99 The elements are of the form (KEY TYPE SET GET) where KEY is a symbol
100 identifying the attribute, TYPE is a widget type for editing the
101 attibute, SET is a function for setting the attribute value, and GET is a function for getiing the attribute value.
102
103 The SET function should take three arguments, the face to modify, the
104 value of the attribute, and optionally the frame where the face should
105 be changed.
106
107 The GET function should take two arguments, the face to examine, and
108 optonally the frame where the face should be examined.")
109
110 (defun face-custom-attributes-set (face frame &rest atts)
111 "For FACE on FRAME set the attributes [KEYWORD VALUE]....
112 Each keyword should be listed in `custom-face-attributes'.
113
114 If FRAME is nil, set the default face."
115 (while atts
116 (let* ((name (nth 0 atts))
117 (value (nth 1 atts))
118 (fun (nth 2 (assq name custom-face-attributes))))
119 (setq atts (cdr (cdr atts)))
120 (condition-case nil
121 (funcall fun face value frame)
122 (error nil)))))
123
124 (defun face-custom-attributes-get (face frame)
125 "For FACE on FRAME get the attributes [KEYWORD VALUE]....
126 Each keyword should be listed in `custom-face-attributes'.
127
128 If FRAME is nil, use the default face."
129 (condition-case nil
130 ;; Attempt to get `font.el' from w3.
131 (require 'font)
132 (error nil))
133 (let ((atts custom-face-attributes)
134 att result get)
135 (while atts
136 (setq att (car atts)
137 atts (cdr atts)
138 get (nth 3 att))
139 (condition-case nil
140 ;; This may fail if w3 doesn't exists.
141 (when get
142 (let ((answer (funcall get face frame)))
143 (unless (equal answer (funcall get 'default frame))
144 (when (widget-apply (nth 1 att) :match answer)
145 (setq result (cons (nth 0 att) (cons answer result)))))))
146 (error nil)))
147 result))
148
149 (defun custom-set-face-bold (face value &optional frame)
150 "Set the bold property of FACE to VALUE."
151 (if value
152 (make-face-bold face frame)
153 (make-face-unbold face frame)))
154
155 ;; Really, we should get rid of these font.el dependencies... They
156 ;; are still presenting a problem with dumping the faces (font.el is
157 ;; too bloated for us to dump). I am thinking about hacking up
158 ;; font-like functionality myself for the sake of this file. It will
159 ;; probably be to-the-point and more efficient.
160
161 (defun custom-face-bold (face &rest args)
162 "Return non-nil if the font of FACE is bold."
163 (let* ((font (apply 'face-font-name face args))
164 ;; Gag
165 (fontobj (font-create-object font)))
166 (font-bold-p fontobj)))
167
168 (defun custom-set-face-italic (face value &optional frame)
169 "Set the italic property of FACE to VALUE."
170 (if value
171 (make-face-italic face frame)
172 (make-face-unitalic face frame)))
173
174 (defun custom-face-italic (face &rest args)
175 "Return non-nil if the font of FACE is italic."
176 (let* ((font (apply 'face-font-name face args))
177 ;; Gag
178 (fontobj (font-create-object font)))
179 (font-italic-p fontobj)))
180
181 (defun custom-face-stipple (face &rest args)
182 "Return the name of the stipple file used for FACE."
183 (let ((image (apply 'specifier-instance
184 (face-background-pixmap face) args)))
185 (and image
186 (image-instance-file-name image))))
187
188 (defun custom-set-face-font-size (face size &rest args)
189 "Set the font of FACE to SIZE"
190 (let* ((font (apply 'face-font-name face args))
191 ;; Gag
192 (fontobj (font-create-object font)))
193 (set-font-size fontobj size)
194 (apply 'font-set-face-font face fontobj args)))
195
196 (defun custom-face-font-size (face &rest args)
197 "Return the size of the font of FACE as a string."
198 (let* ((font (apply 'face-font-name face args))
199 ;; Gag
200 (fontobj (font-create-object font)))
201 (format "%s" (font-size fontobj))))
202
203 (defun custom-set-face-font-family (face family &rest args)
204 "Set the font of FACE to FAMILY."
205 (let* ((font (apply 'face-font-name face args))
206 ;; Gag
207 (fontobj (font-create-object font)))
208 (set-font-family fontobj family)
209 (apply 'font-set-face-font face fontobj args)))
210
211 (defun custom-face-font-family (face &rest args)
212 "Return the name of the font family of FACE."
213 (let* ((font (apply 'face-font-name face args))
214 ;; Gag
215 (fontobj (font-create-object font)))
216 (font-family fontobj)))
217
218 ;;; Initializing.
219
220 ;;;###autoload
221 (defun custom-set-faces (&rest args)
222 "Initialize faces according to user preferences.
223 The arguments should be a list where each entry has the form:
224
225 (FACE SPEC [NOW])
226
227 SPEC will be stored as the saved value for FACE. If NOW is present
228 and non-nil, FACE will also be created according to SPEC.
229
230 See `defface' for the format of SPEC."
231 (while args
232 (let ((entry (car args)))
233 (if (listp entry)
234 (let ((face (nth 0 entry))
235 (spec (nth 1 entry))
236 (now (nth 2 entry)))
237 (put face 'saved-face spec)
238 (when now
239 (put face 'force-face t))
240 (when (or now (find-face face))
241 (unless (find-face face)
242 (make-empty-face face))
243 (face-spec-set face spec))
244 (setq args (cdr args)))
245 ;; Old format, a plist of FACE SPEC pairs.
246 (let ((face (nth 0 args))
247 (spec (nth 1 args)))
248 (put face 'saved-face spec))
249 (setq args (cdr (cdr args)))))))
250
251 ;;; The End.
252
253 (provide 'cus-face)
254
255 ;; cus-face.el ends here