;;; faces.el --- Lisp faces
-;; Copyright (C) 1992-1996, 1998-2011 Free Software Foundation, Inc.
+;; Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: internal
(defun face-list ()
- "Return a list of all defined face names."
+ "Return a list of all defined faces."
(mapcar #'car face-new-frame-defaults))
-
-;;; ### If not frame-local initialize by what X resources?
-
(defun make-face (face &optional no-init-from-resources)
"Define a new face with name FACE, a symbol.
-NO-INIT-FROM-RESOURCES non-nil means don't initialize frame-local
-variants of FACE from X resources. (X resources recognized are found
-in the global variable `face-x-resources'.) If FACE is already known
-as a face, leave it unmodified. Value is FACE."
+Do not call this directly from Lisp code; use `defface' instead.
+
+If NO-INIT-FROM-RESOURCES is non-nil, don't initialize face
+attributes from X resources. If FACE is already known as a face,
+leave it unmodified. Return FACE."
(interactive (list (read-from-minibuffer
"Make face: " nil nil t 'face-name-history)))
(unless (facep face)
(make-face-x-resource-internal face)))
face)
-
(defun make-empty-face (face)
"Define a new, empty face with name FACE.
-If the face already exists, it is left unmodified. Value is FACE."
+Do not call this directly from Lisp code; use `defface' instead."
(interactive (list (read-from-minibuffer
"Make empty face: " nil nil t 'face-name-history)))
(make-face face 'no-init-from-resources))
-
(defun copy-face (old-face new-face &optional frame new-frame)
- "Define a face just like OLD-FACE, with name NEW-FACE.
-
-If NEW-FACE already exists as a face, it is modified to be like
-OLD-FACE. If it doesn't already exist, it is created.
-
-If the optional argument FRAME is given as a frame, NEW-FACE is
-changed on FRAME only.
-If FRAME is t, the frame-independent default specification for OLD-FACE
-is copied to NEW-FACE.
-If FRAME is nil, copying is done for the frame-independent defaults
-and for each existing frame.
-
-If the optional fourth argument NEW-FRAME is given,
-copy the information from face OLD-FACE on frame FRAME
-to NEW-FACE on frame NEW-FRAME. In this case, FRAME may not be nil."
+ "Define a face named NEW-FACE, which is a copy of OLD-FACE.
+This function does not copy face customization data, so NEW-FACE
+will not be made customizable. Most Lisp code should not call
+this function; use `defface' with :inherit instead.
+
+If NEW-FACE already exists as a face, modify it to be like
+OLD-FACE. If NEW-FACE doesn't already exist, create it.
+
+If the optional argument FRAME is a frame, change NEW-FACE on
+FRAME only. If FRAME is t, copy the frame-independent default
+specification for OLD-FACE to NEW-FACE. If FRAME is nil, copy
+the defaults as well as the faces on each existing frame.
+
+If the optional fourth argument NEW-FRAME is given, copy the
+information from face OLD-FACE on frame FRAME to NEW-FACE on
+frame NEW-FRAME. In this case, FRAME must not be nil."
(let ((inhibit-quit t))
(if (null frame)
(progn
(defun set-face-attribute (face frame &rest args)
"Set attributes of FACE on FRAME from ARGS.
-FRAME nil means change attributes on all frames. FRAME t means change
-the default for new frames (this is done automatically each time an
-attribute is changed on all frames).
+If FRAME is nil this function sets the attributes for all
+existing frames, and the default for new frames. If FRAME is t,
+change the default for new frames (this is done automatically
+each time an attribute is changed on all frames).
ARGS must come in pairs ATTRIBUTE VALUE. ATTRIBUTE must be a valid
face attribute name. All attributes can be set to `unspecified';
(defun face-spec-reset-face (face &optional frame)
"Reset all attributes of FACE on FRAME to unspecified."
- (let (reset-args)
- (dolist (attr-and-name face-attribute-name-alist)
- (push 'unspecified reset-args)
- (push (car attr-and-name) reset-args))
- (apply 'set-face-attribute face frame reset-args)))
+ (apply 'set-face-attribute face frame
+ (if (eq face 'default)
+ ;; For the default face, avoid making any attribute
+ ;; unspecified. Instead, set attributes to default values
+ ;; (see also realize_default_face in xfaces.c).
+ (append
+ '(:underline nil :overline nil :strike-through nil
+ :box nil :inverse-video nil :stipple nil :inherit nil)
+ ;; `display-graphic-p' is unavailable when running
+ ;; temacs, prior to loading frame.el.
+ (unless (and (fboundp 'display-graphic-p)
+ (display-graphic-p frame))
+ '(:family "default" :foundry "default" :width normal
+ :height 1 :weight normal :slant normal
+ :foreground "unspecified-fg"
+ :background "unspecified-bg")))
+ ;; For all other faces, unspecify all attributes.
+ (apply 'append
+ (mapcar (lambda (x) (list (car x) 'unspecified))
+ face-attribute-name-alist)))))
(defun face-spec-set (face spec &optional for-defface)
"Set FACE's face spec, which controls its appearance, to SPEC.
(> (tty-color-gray-shades display) 2)))))
(defun read-color (&optional prompt convert-to-RGB allow-empty-name msg)
- "Read a color name or RGB triplet of the form \"#RRRRGGGGBBBB\".
+ "Read a color name or RGB triplet.
Completion is available for color names, but not for RGB triplets.
-RGB triplets have the form #XXXXXXXXXXXX, where each X is a hex
-digit. The number of Xs must be a multiple of 3, with the same
-number of Xs for each of red, green, and blue. The order is red,
-green, blue.
+RGB triplets have the form \"#RRGGBB\". Each of the R, G, and B
+components can have one to four digits, but all three components
+must have the same number of digits. Each digit is a hex value
+between 0 and F; either upper case or lower case for A through F
+are acceptable.
In addition to standard color names and RGB hex values, the
following are available as color candidates. In each case, the
(progn
;; Initialize faces from face spec and custom theme.
(face-spec-recalc face frame)
- ;; X resouces for the default face are applied during
+ ;; X resources for the default face are applied during
;; `x-create-frame'.
(and (not (eq face 'default)) window-system-p
(make-face-x-resource-internal face frame))
(((supports :underline t))
:underline t)
(t
- ;; default to italic, even it doesn't appear to be supported,
- ;; because in some cases the display engine will do it's own
- ;; workaround (to `dim' on ttys)
+ ;; Default to italic, even if it doesn't appear to be supported,
+ ;; because in some cases the display engine will do its own
+ ;; workaround (to `dim' on ttys).
:slant italic))
"Basic italic face."
:group 'basic-faces)
'((((background light)) :background "black")
(((background dark)) :background "white"))
"Basic face for the cursor color under X.
+Currently, only the `:background' attribute is meaningful; all
+other attributes are ignored. The cursor foreground color is
+taken from the background color of the underlying text.
+
Note: Other faces cannot inherit from the cursor face."
:version "21.1"
:group 'cursor
;;; Manipulating font names.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; This is here for compatibilty with Emacs 20.2. For example,
+;; This is here for compatibility with Emacs 20.2. For example,
;; international/fontset.el uses x-resolve-font-name. The following
;; functions are not used in the face implementation itself.
HCoop / bpt / emacs.git / blobdiff