xemacs-beta: lisp/faces.el comparison

comparison lisp/faces.el @ 428:3ecd8885ac67 r21-2-22

Import from CVS: tag r21-2-22

author	cvs
date	Mon, 13 Aug 2007 11:28:15 +0200
parents
children	8de8e3f6228a

comparison

equal deleted inserted replaced

-:0a0253eac470
+:3ecd8885ac67
+;;; faces.el --- Lisp interface to the C "face" structure
+;; Copyright (C) 1992-4, 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1995 Board of Trustees, University of Illinois
+;; Copyright (C) 1995, 1996 Ben Wing
+;; Author: Ben Wing <ben@xemacs.org>
+;; Keywords: faces, internal, dumped
+;; This file is part of XEmacs.
+;; XEmacs is free software; you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+;; XEmacs is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;; General Public License for more details.
+;; You should have received a copy of the GNU General Public License
+;; along with XEmacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+;;; Synched up with: Not synched with FSF.  Almost completely divergent.
+;;; Commentary:
+;; This file is dumped with XEmacs.
+;; face implementation #1 (used Lisp vectors and parallel C vectors;
+;; FSFmacs still uses this) authored by Jamie Zawinski <jwz@jwz.org>
+;; pre Lucid-Emacs 19.0.
+;; face implementation #2 (used one face object per frame per face)
+;; authored by Jamie Zawinski for 19.9.
+;; face implementation #3 (use one face object per face) originally
+;; authored for 19.12 by Chuck Thompson <cthomp@cs.uiuc.edu>,
+;; rewritten by Ben Wing with the advent of specifiers.
+;;; Some stuff in FSF's faces.el is in our x-faces.el.
+;;; Code:
+(defgroup faces nil
+"Support for multiple text attributes (fonts, colors, ...)
+Such a collection of attributes is called a \"face\"."
+:group 'emacs)
+(defun read-face-name (prompt)
+(let (face)
+(while (= (length face) 0) ; nil or ""
+(setq face (completing-read prompt
+				  (mapcar (lambda (x) (list (symbol-name x)))
+					  (face-list))
+				  nil t)))
+(intern face)))
+(defun face-interactive (what &optional bool)
+(let* ((fn (intern (concat "face-" what "-instance")))
+	 (face (read-face-name (format "Set %s of face: " what)))
+	 (default (if (fboundp fn)
+		      ;; #### we should distinguish here between
+		      ;; explicitly setting the value to be the
+		      ;; same as the default face's value, and
+		      ;; not setting a value at all.
+		      (funcall fn face)))
+	 (value (if bool
+		    (y-or-n-p (format "Should face %s be %s? "
+				      (symbol-name face) bool))
+		  (read-string (format "Set %s of face %s to: "
+				       what (symbol-name face))
+		   (cond ((font-instance-p default)
+			  (font-instance-name default))
+			 ((color-instance-p default)
+			  (color-instance-name default))
+			 ((image-instance-p default)
+			  (image-instance-file-name default))
+			 (t default))))))
+(list face (if (equal value "") nil value))))
+(defconst built-in-face-specifiers
+(built-in-face-specifiers)
+"A list of the built-in face properties that are specifiers.")
+(defun face-property (face property &optional locale tag-set exact-p)
+"Return FACE's value of the given PROPERTY.
+If LOCALE is omitted, the FACE's actual value for PROPERTY will be
+returned.  For built-in properties, this will be a specifier object
+of a type appropriate to the property (e.g. a font or color
+specifier).  For other properties, this could be anything.
+If LOCALE is supplied, then instead of returning the actual value,
+the specification(s) for the given locale or locale type will
+be returned.  This will only work if the actual value of
+PROPERTY is a specifier (this will always be the case for built-in
+properties, but not or not may apply to user-defined properties).
+If the actual value of PROPERTY is not a specifier, this value
+will simply be returned regardless of LOCALE.
+The return value will be a list of instantiators (e.g. strings
+specifying a font or color name), or a list of specifications, each
+of which is a cons of a locale and a list of instantiators.
+Specifically, if LOCALE is a particular locale (a buffer, window,
+frame, device, or 'global), a list of instantiators for that locale
+will be returned.  Otherwise, if LOCALE is a locale type (one of
+the symbols 'buffer, 'window, 'frame, or 'device), the specifications
+for all locales of that type will be returned.  Finally, if LOCALE is
+'all, the specifications for all locales of all types will be returned.
+The specifications in a specifier determine what the value of
+PROPERTY will be in a particular \"domain\" or set of circumstances,
+which is typically a particular Emacs window along with the buffer
+it contains and the frame and device it lies within.  The value
+is derived from the instantiator associated with the most specific
+locale (in the order buffer, window, frame, device, and 'global)
+that matches the domain in question.  In other words, given a domain
+(i.e. an Emacs window, usually), the specifier for PROPERTY will first
+be searched for a specification whose locale is the buffer contained
+within that window; then for a specification whose locale is the window
+itself; then for a specification whose locale is the frame that the
+window is contained within; etc.  The first instantiator that is
+valid for the domain (usually this means that the instantiator is
+recognized by the device [i.e. the X server or TTY device] that the
+domain is on.  The function `face-property-instance' actually does
+all this, and is used to determine how to display the face.
+See `set-face-property' for the built-in property-names."
+(setq face (get-face face))
+(let ((value (get face property)))
+(if (and locale
+	     (or (memq property built-in-face-specifiers)
+		 (specifierp value)))
+	(setq value (specifier-specs value locale tag-set exact-p)))
+value))
+(defun convert-face-property-into-specifier (face property)
+"Convert PROPERTY on FACE into a specifier, if it's not already."
+(setq face (get-face face))
+(let ((specifier (get face property)))
+;; if a user-property does not have a specifier but a
+;; locale was specified, put a specifier there.
+;; If there was already a value there, convert it to a
+;; specifier with the value as its 'global instantiator.
+(unless (specifierp specifier)
+(let ((new-specifier (make-specifier 'generic)))
+	(if (or (not (null specifier))
+		;; make sure the nil returned from `get' wasn't
+		;; actually the value of the property
+		(null (get face property t)))
+	    (add-spec-to-specifier new-specifier specifier))
+	(setq specifier new-specifier)
+	(put face property specifier)))))
+(defun face-property-instance (face property
+				    &optional domain default no-fallback)
+"Return the instance of FACE's PROPERTY in the specified DOMAIN.
+Under most circumstances, DOMAIN will be a particular window,
+and the returned instance describes how the specified property
+actually is displayed for that window and the particular buffer
+in it.  Note that this may not be the same as how the property
+appears when the buffer is displayed in a different window or
+frame, or how the property appears in the same window if you
+switch to another buffer in that window; and in those cases,
+the returned instance would be different.
+The returned instance will typically be a color-instance,
+font-instance, or pixmap-instance object, and you can query
+it using the appropriate object-specific functions.  For example,
+you could use `color-instance-rgb-components' to find out the
+RGB (red, green, and blue) components of how the 'background
+property of the 'highlight face is displayed in a particular
+window.  The results might be different from the results
+you would get for another window (perhaps the user
+specified a different color for the frame that window is on;
+or perhaps the same color was specified but the window is
+on a different X server, and that X server has different RGB
+values for the color from this one).
+DOMAIN defaults to the selected window if omitted.
+DOMAIN can be a frame or device, instead of a window.  The value
+returned for a such a domain is used in special circumstances
+when a more specific domain does not apply; for example, a frame
+value might be used for coloring a toolbar, which is conceptually
+attached to a frame rather than a particular window.  The value
+is also useful in determining what the value would be for a
+particular window within the frame or device, if it is not
+overridden by a more specific specification.
+If PROPERTY does not name a built-in property, its value will
+simply be returned unless it is a specifier object, in which case
+it will be instanced using `specifier-instance'.
+Optional arguments DEFAULT and NO-FALLBACK are the same as in
+`specifier-instance'."
+(setq face (get-face face))
+(let ((value (get face property)))
+(if (specifierp value)
+	(setq value (specifier-instance value domain default no-fallback)))
+value))
+(defun face-property-matching-instance (face property matchspec
+					     &optional domain default
+					     no-fallback)
+"Return the instance of FACE's PROPERTY matching MATCHSPEC in DOMAIN.
+Currently the only useful value for MATCHSPEC is a charset, when used
+in conjunction with the face's font; this allows you to retrieve a
+font that can be used to display a particular charset, rather than just
+any font.
+Other than MATCHSPEC, this function is identical to `face-property-instance'.
+See also `specifier-matching-instance' for a fuller description of the
+matching process."
+(setq face (get-face face))
+(let ((value (get face property)))
+(if (specifierp value)
+	(setq value (specifier-matching-instance value matchspec domain
+						 default no-fallback)))
+value))
+(defun set-face-property (face property value &optional locale tag-set
+			       how-to-add)
+"Change a property of FACE.
+NOTE: If you want to remove a property from a face, use `remove-face-property'
+rather than attempting to set a value of nil for the property.
+For built-in properties, the actual value of the property is a
+specifier and you cannot change this; but you can change the
+specifications within the specifier, and that is what this function
+will do.  For user-defined properties, you can use this function
+to either change the actual value of the property or, if this value
+is a specifier, change the specifications within it.
+If PROPERTY is a built-in property, the specifications to be added to
+this property can be supplied in many different ways:
+-- If VALUE is a simple instantiator (e.g. a string naming a font or
+color) or a list of instantiators, then the instantiator(s) will
+be added as a specification of the property for the given LOCALE
+(which defaults to 'global if omitted).
+-- If VALUE is a list of specifications (each of which is a cons of
+a locale and a list of instantiators), then LOCALE must be nil
+(it does not make sense to explicitly specify a locale in this
+case), and specifications will be added as given.
+-- If VALUE is a specifier (as would be returned by `face-property'
+if no LOCALE argument is given), then some or all of the
+specifications in the specifier will be added to the property.
+In this case, the function is really equivalent to
+`copy-specifier' and LOCALE has the same semantics (if it is
+a particular locale, the specification for the locale will be
+copied; if a locale type, specifications for all locales of
+that type will be copied; if nil or 'all, then all
+specifications will be copied).
+HOW-TO-ADD should be either nil or one of the symbols 'prepend,
+'append, 'remove-tag-set-prepend, 'remove-tag-set-append, 'remove-locale,
+'remove-locale-type, or 'remove-all.  See `copy-specifier' and
+`add-spec-to-specifier' for a description of what each of
+these means.  Most of the time, you do not need to worry about
+this argument; the default behavior usually is fine.
+In general, it is OK to pass an instance object (e.g. as returned
+by `face-property-instance') as an instantiator in place of
+an actual instantiator.  In such a case, the instantiator used
+to create that instance object will be used (for example, if
+you set a font-instance object as the value of the 'font
+property, then the font name used to create that object will
+be used instead).  If some cases, however, doing this
+conversion does not make sense, and this will be noted in
+the documentation for particular types of instance objects.
+If PROPERTY is not a built-in property, then this function will
+simply set its value if LOCALE is nil.  However, if LOCALE is
+given, then this function will attempt to add VALUE as the
+instantiator for the given LOCALE, using `add-spec-to-specifier'.
+If the value of the property is not a specifier, it will
+automatically be converted into a 'generic specifier.
+The following symbols have predefined meanings:
+foreground         The foreground color of the face.
+For valid instantiators, see `color-specifier-p'.
+background         The background color of the face.
+For valid instantiators, see `color-specifier-p'.
+font               The font used to display text covered by this face.
+For valid instantiators, see `font-specifier-p'.
+display-table      The display table of the face.
+This should be a vector of 256 elements.
+background-pixmap  The pixmap displayed in the background of the face.
+Only used by faces on X devices.
+For valid instantiators, see `image-specifier-p'.
+underline          Underline all text covered by this face.
+For valid instantiators, see `face-boolean-specifier-p'.
+strikethru         Draw a line through all text covered by this face.
+For valid instantiators, see `face-boolean-specifier-p'.
+highlight          Highlight all text covered by this face.
+Only used by faces on TTY devices.
+For valid instantiators, see `face-boolean-specifier-p'.
+dim                Dim all text covered by this face.
+For valid instantiators, see `face-boolean-specifier-p'.
+blinking           Blink all text covered by this face.
+Only used by faces on TTY devices.
+For valid instantiators, see `face-boolean-specifier-p'.
+reverse            Reverse the foreground and background colors.
+Only used by faces on TTY devices.
+For valid instantiators, see `face-boolean-specifier-p'.
+doc-string         Description of what the face's normal use is.
+NOTE: This is not a specifier, unlike all
+the other built-in properties, and cannot
+contain locale-specific values."
+(setq face (get-face face))
+(if (memq property built-in-face-specifiers)
+(set-specifier (get face property) value locale tag-set how-to-add)
+;; This section adds user defined properties.
+(if (not locale)
+	(put face property value)
+(convert-face-property-into-specifier face property)
+(add-spec-to-specifier (get face property) value locale tag-set
+			     how-to-add)))
+value)
+(defun remove-face-property (face property &optional locale tag-set exact-p)
+"Remove a property from FACE.
+For built-in properties, this is analogous to `remove-specifier'.
+See `remove-specifier' for the meaning of the LOCALE, TAG-SET, and EXACT-P
+arguments."
+(or locale (setq locale 'all))
+(if (memq property built-in-face-specifiers)
+(remove-specifier (face-property face property) locale tag-set exact-p)
+(if (eq locale 'all)
+	(remprop (get-face face) property)
+(convert-face-property-into-specifier face property)
+(remove-specifier (face-property face property) locale tag-set
+			exact-p))))
+(defun reset-face (face &optional locale tag-set exact-p)
+"Clear all existing built-in specifications from FACE.
+This makes FACE inherit all its display properties from 'default.
+WARNING: Be absolutely sure you want to do this!!!  It is a dangerous
+operation and is not undoable.
+The arguments LOCALE, TAG-SET and EXACT-P are the same as for
+`remove-specifier'."
+(mapc (lambda (x)
+	  (remove-specifier (face-property face x) locale tag-set exact-p))
+	built-in-face-specifiers)
+nil)
+(defun set-face-parent (face parent &optional locale tag-set how-to-add)
+"Set the parent of FACE to PARENT, for all properties.
+This makes all properties of FACE inherit from PARENT."
+(setq parent (get-face parent))
+(mapcar (lambda (x)
+	    (set-face-property face x (vector parent) locale tag-set
+			       how-to-add))
+	  (delq 'display-table
+		(delq 'background-pixmap
+		      (copy-sequence built-in-face-specifiers))))
+(set-face-background-pixmap face (vector 'inherit ':face parent)
+			      locale tag-set how-to-add)
+nil)
+(defun face-doc-string (face)
+"Return the documentation string for FACE."
+(face-property face 'doc-string))
+(defun set-face-doc-string (face doc-string)
+"Change the documentation string of FACE to DOC-STRING."
+(interactive (face-interactive "doc-string"))
+(set-face-property face 'doc-string doc-string))
+(defun face-font-name (face &optional domain charset)
+"Return the font name of FACE in DOMAIN, or nil if it is unspecified.
+DOMAIN is as in `face-font-instance'."
+(let ((f (face-font-instance face domain charset)))
+(and f (font-instance-name f))))
+(defun face-font (face &optional locale tag-set exact-p)
+"Return the font of FACE in LOCALE, or nil if it is unspecified.
+FACE may be either a face object or a symbol representing a face.
+LOCALE may be a locale (the instantiators for that particular locale
+will be returned), a locale type (the specifications for all locales
+of that type will be returned), 'all (all specifications will be
+returned), or nil (the actual specifier object will be returned).
+See `face-property' for more information."
+(face-property face 'font locale tag-set exact-p))
+(defun face-font-instance (face &optional domain charset)
+"Return the instance of FACE's font in DOMAIN.
+FACE may be either a face object or a symbol representing a face.
+Normally DOMAIN will be a window or nil (meaning the selected window),
+and an instance object describing how the font appears in that
+particular window and buffer will be returned.
+See `face-property-instance' for more information."
+(if charset
+(face-property-matching-instance face 'font charset domain)
+(face-property-instance face 'font domain)))
+(defun set-face-font (face font &optional locale tag-set how-to-add)
+"Change the font of FACE to FONT in LOCALE.
+FACE may be either a face object or a symbol representing a face.
+FONT should be an instantiator (see `font-specifier-p'), a list of
+instantiators, an alist of specifications (each mapping a
+locale to an instantiator list), or a font specifier object.
+If FONT is an alist, LOCALE must be omitted.  If FONT is a
+specifier object, LOCALE can be a locale, a locale type, 'all,
+or nil; see `copy-specifier' for its semantics.  Otherwise LOCALE
+specifies the locale under which the specified instantiator(s)
+will be added, and defaults to 'global.
+See `set-face-property' for more information."
+(interactive (face-interactive "font"))
+(set-face-property face 'font font locale tag-set how-to-add))
+(defun face-foreground (face &optional locale tag-set exact-p)
+"Return the foreground of FACE in LOCALE, or nil if it is unspecified.
+FACE may be either a face object or a symbol representing a face.
+LOCALE may be a locale (the instantiators for that particular locale
+will be returned), a locale type (the specifications for all locales
+of that type will be returned), 'all (all specifications will be
+returned), or nil (the actual specifier object will be returned).
+See `face-property' for more information."
+(face-property face 'foreground locale tag-set exact-p))
+(defun face-foreground-instance (face &optional domain default no-fallback)
+"Return the instance of FACE's foreground in DOMAIN.
+FACE may be either a face object or a symbol representing a face.
+Normally DOMAIN will be a window or nil (meaning the selected window),
+and an instance object describing how the foreground appears in that
+particular window and buffer will be returned.
+See `face-property-instance' for more information."
+(face-property-instance face 'foreground domain default no-fallback))
+(defun face-foreground-name (face &optional domain default no-fallback)
+"Return the name of FACE's foreground color in DOMAIN.
+FACE may be either a face object or a symbol representing a face.
+Normally DOMAIN will be a window or nil (meaning the selected window),
+and an instance object describing how the background appears in that
+particular window and buffer will be returned.
+See `face-property-instance' for more information."
+(color-instance-name (face-foreground-instance
+			face domain default no-fallback)))
+(defun set-face-foreground (face color &optional locale tag-set how-to-add)
+"Change the foreground color of FACE to COLOR in LOCALE.
+FACE may be either a face object or a symbol representing a face.
+COLOR should be an instantiator (see `color-specifier-p'), a list of
+instantiators, an alist of specifications (each mapping a locale to
+an instantiator list), or a color specifier object.
+If COLOR is an alist, LOCALE must be omitted.  If COLOR is a
+specifier object, LOCALE can be a locale, a locale type, 'all,
+or nil; see `copy-specifier' for its semantics.  Otherwise LOCALE
+specifies the locale under which the specified instantiator(s)
+will be added, and defaults to 'global.
+See `set-face-property' for more information."
+(interactive (face-interactive "foreground"))
+(set-face-property face 'foreground color locale tag-set how-to-add))
+(defun face-background (face &optional locale tag-set exact-p)
+"Return the background color of FACE in LOCALE, or nil if it is unspecified.
+FACE may be either a face object or a symbol representing a face.
+LOCALE may be a locale (the instantiators for that particular locale
+will be returned), a locale type (the specifications for all locales
+of that type will be returned), 'all (all specifications will be
+returned), or nil (the actual specifier object will be returned).
+See `face-property' for more information."
+(face-property face 'background locale tag-set exact-p))
+(defun face-background-instance (face &optional domain default no-fallback)
+"Return the instance of FACE's background in DOMAIN.
+FACE may be either a face object or a symbol representing a face.
+Normally DOMAIN will be a window or nil (meaning the selected window),
+and an instance object describing how the background appears in that
+particular window and buffer will be returned.
+See `face-property-instance' for more information."
+(face-property-instance face 'background domain default no-fallback))
+(defun face-background-name (face &optional domain default no-fallback)
+"Return the name of FACE's background color in DOMAIN.
+FACE may be either a face object or a symbol representing a face.
+Normally DOMAIN will be a window or nil (meaning the selected window),
+and an instance object describing how the background appears in that
+particular window and buffer will be returned.
+See `face-property-instance' for more information."
+(color-instance-name (face-background-instance
+			face domain default no-fallback)))
+(defun set-face-background (face color &optional locale tag-set how-to-add)
+"Change the background color of FACE to COLOR in LOCALE.
+FACE may be either a face object or a symbol representing a face.
+COLOR should be an instantiator (see `color-specifier-p'), a list of
+instantiators, an alist of specifications (each mapping a locale to
+an instantiator list), or a color specifier object.
+If COLOR is an alist, LOCALE must be omitted.  If COLOR is a
+specifier object, LOCALE can be a locale, a locale type, 'all,
+or nil; see `copy-specifier' for its semantics.  Otherwise LOCALE
+specifies the locale under which the specified instantiator(s)
+will be added, and defaults to 'global.
+See `set-face-property' for more information."
+(interactive (face-interactive "background"))
+(set-face-property face 'background color locale tag-set how-to-add))
+(defun face-background-pixmap (face &optional locale tag-set exact-p)
+"Return the background pixmap of FACE in LOCALE, or nil if it is unspecified.
+This property is only used on window system devices.
+FACE may be either a face object or a symbol representing a face.
+LOCALE may be a locale (the instantiators for that particular locale
+will be returned), a locale type (the specifications for all locales
+of that type will be returned), 'all (all specifications will be
+returned), or nil (the actual specifier object will be returned).
+See `face-property' for more information."
+(face-property face 'background-pixmap locale tag-set exact-p))
+(defun face-background-pixmap-instance (face &optional domain default
+					     no-fallback)
+"Return the instance of FACE's background pixmap in DOMAIN.
+FACE may be either a face object or a symbol representing a face.
+Normally DOMAIN will be a window or nil (meaning the selected window),
+and an instance object describing how the background appears in that
+particular window and buffer will be returned.
+See `face-property-instance' for more information."
+(face-property-instance face 'background-pixmap domain default no-fallback))
+(defun set-face-background-pixmap (face pixmap &optional locale tag-set
+					how-to-add)
+"Change the background pixmap of FACE to PIXMAP in LOCALE.
+This property is only used on window system devices.
+FACE may be either a face object or a symbol representing a face.
+PIXMAP should be an instantiator (see `image-specifier-p'), a list
+of instantiators, an alist of specifications (each mapping a locale
+to an instantiator list), or an image specifier object.
+If PIXMAP is an alist, LOCALE must be omitted.  If PIXMAP is a
+specifier object, LOCALE can be a locale, a locale type, 'all,
+or nil; see `copy-specifier' for its semantics.  Otherwise LOCALE
+specifies the locale under which the specified instantiator(s)
+will be added, and defaults to 'global.
+See `set-face-property' for more information."
+(interactive (face-interactive "background-pixmap"))
+(set-face-property face 'background-pixmap pixmap locale tag-set how-to-add))
+(defun face-display-table (face &optional locale tag-set exact-p)
+"Return the display table of FACE in LOCALE.
+A vector (as returned by `make-display-table') will be returned.
+LOCALE may be a locale (the instantiators for that particular locale
+will be returned), a locale type (the specifications for all locales
+of that type will be returned), 'all (all specifications will be
+returned), or nil (the actual specifier object will be returned).
+See `face-property' for more information."
+(face-property face 'display-table locale tag-set exact-p))
+(defun face-display-table-instance (face &optional domain default no-fallback)
+"Return the instance of FACE's display table in DOMAIN.
+A vector (as returned by `make-display-table') will be returned.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(face-property-instance face 'display-table domain default no-fallback))
+(defun set-face-display-table (face display-table &optional locale tag-set
+				    how-to-add)
+"Change the display table of FACE to DISPLAY-TABLE in LOCALE.
+DISPLAY-TABLE should be a vector as returned by `make-display-table'.
+See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
+HOW-TO-ADD arguments."
+(interactive (face-interactive "display-table"))
+(set-face-property face 'display-table display-table locale tag-set
+		     how-to-add))
+;; The following accessors and mutators are, IMHO, good
+;; implementation.  Cf. with `make-face-bold'.
+(defun face-underline-p (face &optional domain default no-fallback)
+"Return t if FACE is underlined in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(face-property-instance face 'underline domain default no-fallback))
+(defun set-face-underline-p (face underline-p &optional locale tag-set
+				  how-to-add)
+"Change the underline property of FACE to UNDERLINE-P.
+UNDERLINE-P is normally a face-boolean instantiator; see
+`face-boolean-specifier-p'.
+See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
+HOW-TO-ADD arguments."
+(interactive (face-interactive "underline-p" "underlined"))
+(set-face-property face 'underline underline-p locale tag-set how-to-add))
+(defun face-strikethru-p (face &optional domain default no-fallback)
+"Return t if FACE is strikethru-d (i.e. struck through) in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(face-property-instance face 'strikethru domain default no-fallback))
+(defun set-face-strikethru-p (face strikethru-p &optional locale tag-set
+				  how-to-add)
+"Change whether FACE is strikethru-d (i.e. struck through) in LOCALE.
+STRIKETHRU-P is normally a face-boolean instantiator; see
+`face-boolean-specifier-p'.
+See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
+HOW-TO-ADD arguments."
+(interactive (face-interactive "strikethru-p" "strikethru-d"))
+(set-face-property face 'strikethru strikethru-p locale tag-set how-to-add))
+(defun face-highlight-p (face &optional domain default no-fallback)
+"Return t if FACE is highlighted in DOMAIN (TTY domains only).
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(face-property-instance face 'highlight domain default no-fallback))
+(defun set-face-highlight-p (face highlight-p &optional locale tag-set
+				  how-to-add)
+"Change whether FACE is highlighted in LOCALE (TTY locales only).
+HIGHLIGHT-P is normally a face-boolean instantiator; see
+`face-boolean-specifier-p'.
+See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
+HOW-TO-ADD arguments."
+(interactive (face-interactive "highlight-p" "highlighted"))
+(set-face-property face 'highlight highlight-p locale tag-set how-to-add))
+(defun face-dim-p (face &optional domain default no-fallback)
+"Return t if FACE is dimmed in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(face-property-instance face 'dim domain default no-fallback))
+(defun set-face-dim-p (face dim-p &optional locale tag-set how-to-add)
+"Change whether FACE is dimmed in LOCALE.
+DIM-P is normally a face-boolean instantiator; see
+`face-boolean-specifier-p'.
+See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
+HOW-TO-ADD arguments."
+(interactive (face-interactive "dim-p" "dimmed"))
+(set-face-property face 'dim dim-p locale tag-set how-to-add))
+(defun face-blinking-p (face &optional domain default no-fallback)
+"Return t if FACE is blinking in DOMAIN (TTY domains only).
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(face-property-instance face 'blinking domain default no-fallback))
+(defun set-face-blinking-p (face blinking-p &optional locale tag-set
+				 how-to-add)
+"Change whether FACE is blinking in LOCALE (TTY locales only).
+BLINKING-P is normally a face-boolean instantiator; see
+`face-boolean-specifier-p'.
+See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
+HOW-TO-ADD arguments."
+(interactive (face-interactive "blinking-p" "blinking"))
+(set-face-property face 'blinking blinking-p locale tag-set how-to-add))
+(defun face-reverse-p (face &optional domain default no-fallback)
+"Return t if FACE is reversed in DOMAIN (TTY domains only).
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(face-property-instance face 'reverse domain default no-fallback))
+(defun set-face-reverse-p (face reverse-p &optional locale tag-set how-to-add)
+"Change whether FACE is reversed in LOCALE (TTY locales only).
+REVERSE-P is normally a face-boolean instantiator; see
+`face-boolean-specifier-p'.
+See `set-face-property' for the semantics of the LOCALE, TAG-SET, and
+HOW-TO-ADD arguments."
+(interactive (face-interactive "reverse-p" "reversed"))
+(set-face-property face 'reverse reverse-p locale tag-set how-to-add))
+(defun face-property-equal (face1 face2 prop domain)
+(equal (face-property-instance face1 prop domain)
+	 (face-property-instance face2 prop domain)))
+(defun face-equal-loop (props face1 face2 domain)
+(while (and props
+	      (face-property-equal face1 face2 (car props) domain))
+(setq props (cdr props)))
+(null props))
+(defun face-equal (face1 face2 &optional domain)
+"Return t if FACE1 and FACE2 will display in the same way in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(if (null domain) (setq domain (selected-window)))
+(if (not (valid-specifier-domain-p domain))
+(error "Invalid specifier domain"))
+(let ((device (dfw-device domain))
+	(common-props '(foreground background font display-table underline
+				   dim))
+	(win-props '(background-pixmap strikethru))
+	(tty-props '(highlight blinking reverse)))
+;; First check the properties which are used in common between the
+;; x and tty devices.  Then, check those properties specific to
+;; the particular device type.
+(and (face-equal-loop common-props face1 face2 domain)
+	 (cond ((eq 'tty (device-type device))
+		(face-equal-loop tty-props face1 face2 domain))
+	       ((or (eq 'x (device-type device))
+		    (eq 'mswindows (device-type device)))
+		(face-equal-loop win-props face1 face2 domain))
+	       (t t)))))
+(defun face-differs-from-default-p (face &optional domain)
+"Return t if FACE will display differently from the default face in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(not (face-equal face 'default domain)))
+; moved from x-faces.el
+(defun try-font-name (name &optional device)
+;; yes, name really should be here twice.
+(and name (make-font-instance name device t) name))
+;; This function is a terrible, disgusting hack!!!!  Need to
+;; separate out the font elements as separate face properties!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+;; WE DEMAND LEXICAL SCOPING!!!
+(defun frob-face-property (face property func &optional locale tags)
+"Change the specifier for FACE's PROPERTY according to FUNC, in LOCALE.
+This function is ugly and messy and is primarily used as an internal
+helper function for `make-face-bold' et al., so you probably don't
+want to use it or read the rest of the documentation.  But if you do ...
+FUNC should be a function of two arguments (an instance and a device)
+that returns a modified name that is valid for the given device.
+If LOCALE specifies a valid domain (i.e. a window, frame, or device),
+this function instantiates the specifier over that domain, applies FUNC
+to the resulting instance, and adds the result back as an instantiator
+for that locale.  Otherwise, LOCALE should be a locale, locale type, or
+'all (defaults to 'all if omitted).  For each specification thusly
+included: if the locale given is a valid domain, FUNC will be
+iterated over all valid instantiators for the device of the domain
+until a non-nil result is found (if there is no such result, the
+first valid instantiator is used), and that result substituted for
+the specification; otherwise, the process just outlined is
+iterated over each existing device and the concatenated results
+substituted for the specification."
+(let ((sp (face-property face property))
+	temp-sp)
+(if (valid-specifier-domain-p locale)
+	;; this is easy.
+	(let* ((inst (face-property-instance face property locale))
+	       (name (and inst (funcall func inst (dfw-device locale)))))
+	  (when name
+	    (add-spec-to-specifier sp name locale tags)))
+;; otherwise, map over all specifications ...
+;; but first, some further kludging:
+;; (1) if we're frobbing the global property, make sure
+;;     that something is there (copy from the default face,
+;;     if necessary).  Otherwise, something like
+;;     (make-face-larger 'modeline)
+;;     won't do anything at all if the modeline simply
+;;     inherits its font from 'default.
+;; (2) if we're frobbing a particular locale, nothing would
+;;     happen if that locale has no instantiators.  So signal
+;;     an error to indicate this.
+(setq temp-sp (copy-specifier sp))
+(if (and (or (eq locale 'global) (eq locale 'all) (not locale))
+	       (not (face-property face property 'global)))
+	  (copy-specifier (face-property 'default property)
+			  temp-sp 'global))
+(if (and (valid-specifier-locale-p locale)
+	       (not (specifier-specs temp-sp locale)))
+	  (error "Property must have a specification in locale %S" locale))
+(map-specifier
+temp-sp
+(lambda (sp-arg locale inst-list func)
+	 (let* ((device (dfw-device locale))
+		;; if a device can be derived from the locale,
+		;; call frob-face-property-1 for that device.
+		;; Otherwise map frob-face-property-1 over each device.
+		(result
+		 (if device
+		     (list (frob-face-property-1 sp-arg device inst-list func))
+		   (mapcar (lambda (device)
+			     (frob-face-property-1 sp-arg device
+						   inst-list func))
+			   (device-list))))
+		new-result)
+	   ;; remove duplicates and nils from the obtained list of
+	   ;; instantiators. Also add tags amd remove 'defaults'.
+	   (mapcar (lambda (arg)
+		     (when arg
+		       (if (not (consp arg))
+			   (setq arg (cons tags arg))
+			 (setcar arg (append tags (delete 'default
+							  (car arg))))))
+		     (when (and arg (not (member arg new-result)))
+		       (setq new-result (cons arg new-result))))
+		   result)
+	   ;; add back in.
+	   (add-spec-list-to-specifier sp (list (cons locale new-result)))
+	   ;; tell map-specifier to keep going.
+	   nil))
+locale
+func))))
+(defun frob-face-property-1 (sp device inst-list func)
+(let
+(first-valid result)
+(while (and inst-list (not result))
+(let* ((inst-pair (car inst-list))
+	     (tag-set (car inst-pair))
+	     (sp-inst (specifier-instance-from-inst-list
+		       sp device (list inst-pair))))
+	(if sp-inst
+	    (progn
+	      (if (not first-valid)
+		  (setq first-valid inst-pair))
+	      (setq result (funcall func sp-inst device))
+(if result
+(setq result (cons tag-set result))))))
+(setq inst-list (cdr inst-list)))
+(or result first-valid)))
+(defun frob-face-font-2 (face locale tags unfrobbed-face frobbed-face
+			      tty-thunk x-thunk standard-face-mapping)
+;; another kludge to make things more intuitive.  If we're
+;; inheriting from a standard face in this locale, frob the
+;; inheritance as appropriate.  Else, if, after the first X frobbing
+;; pass, the face hasn't changed and still looks like the standard
+;; unfrobbed face (e.g. 'default), make it inherit from the standard
+;; frobbed face (e.g. 'bold).  Regardless of things, do the TTY
+;; frobbing.
+;; yuck -- The LOCALE argument to make-face-bold is not actually a locale,
+;; but is a "locale, locale-type, or nil for all".  So ...  do our extra
+;; frobbing only if it's actually a locale; or for nil, do the frobbing
+;; on 'global.  This specifier stuff needs some rethinking.
+(let* ((the-locale (cond ((null locale) 'global)
+			   ((valid-specifier-locale-p locale) locale)
+			   (t nil)))
+	 (specs (and the-locale (face-font face the-locale nil t)))
+	 (change-it (and specs (cdr (assoc specs standard-face-mapping)))))
+(if (and change-it
+	     (not (memq (face-name (find-face face))
+			'(default bold italic bold-italic))))
+	(progn
+	  (or (equal change-it t)
+	      (set-face-property face 'font change-it the-locale))
+	  (funcall tty-thunk))
+(let* ((domain (cond ((null the-locale) nil)
+			   ((valid-specifier-domain-p the-locale) the-locale)
+			   ;; OK, this next one is truly a kludge, but
+			   ;; it results in more intuitive behavior most
+			   ;; of the time. (really!)
+			   ((or (eq the-locale 'global) (eq the-locale 'all))
+			    (selected-device))
+			   (t nil)))
+	     (inst (and domain (face-property-instance face 'font domain))))
+	(funcall tty-thunk)
+	(funcall x-thunk)
+	;; If it's reasonable to do the inherit-from-standard-face trick,
+	;; and it's called for, then do it now.
+	(or (null domain)
+	    (not (equal inst (face-property-instance face 'font domain)))
+	    ;; don't do it for standard faces, or you'll get inheritance loops.
+	    ;; #### This makes XEmacs seg fault! fix this bug.
+	    (memq (face-name (find-face face))
+		  '(default bold italic bold-italic))
+	    (not (equal (face-property-instance face 'font domain)
+			(face-property-instance unfrobbed-face 'font domain)))
+	    (set-face-property face 'font (vector frobbed-face)
+			       the-locale tags))))))
+(defun make-face-bold (face &optional locale tags)
+"Make FACE bold in LOCALE, if possible.
+This will attempt to make the font bold for X locales and will set the
+highlight flag for TTY locales.
+If LOCALE is nil, omitted, or `all', this will attempt to frob all
+font specifications for FACE to make them appear bold.  Similarly, if
+LOCALE is a locale type, this frobs all font specifications for locales
+of that type.  If LOCALE is a particular locale, what happens depends on
+what sort of locale is given.  If you gave a device, frame, or window,
+then it's always possible to determine what the font actually will be,
+so this is determined and the resulting font is frobbed and added back as a
+specification for this locale.  If LOCALE is a buffer, however, you can't
+determine what the font will actually be unless there's actually a
+specification given for that particular buffer (otherwise, it depends
+on what window and frame the buffer appears in, and might not even be
+well-defined if the buffer appears multiple times in different places);
+therefore you will get an error unless there's a specification for the
+buffer.
+Finally, in some cases (specifically, when LOCALE is not a locale type),
+if the frobbing didn't actually make the font look any different
+\(this happens, for example, if your font specification is already bold
+or has no bold equivalent), and currently looks like the font of the
+'default face, it is set to inherit from the 'bold face.  This is kludgy
+but it makes `make-face-bold' have more intuitive behavior in many
+circumstances."
+(interactive (list (read-face-name "Make which face bold: ")))
+(frob-face-font-2
+face locale tags 'default 'bold
+(lambda ()
+;; handle TTY specific entries
+(when (featurep 'tty)
+(set-face-highlight-p face t locale (cons 'tty tags))))
+(lambda ()
+;; handle X specific entries
+(when (featurep 'x)
+(frob-face-property face 'font 'x-make-font-bold locale tags))
+(when (featurep 'mswindows)
+(frob-face-property face 'font 'mswindows-make-font-bold locale tags))
+)
+'(([default] . [bold])
+([bold] . t)
+([italic] . [bold-italic])
+([bold-italic] . t))))
+(defun make-face-italic (face &optional locale tags)
+"Make FACE italic in LOCALE, if possible.
+This will attempt to make the font italic for X locales and will set
+the underline flag for TTY locales.
+See `make-face-bold' for the semantics of the LOCALE argument and
+for more specifics on exactly how this function works."
+(interactive (list (read-face-name "Make which face italic: ")))
+(frob-face-font-2
+face locale tags 'default 'italic
+(lambda ()
+;; handle TTY specific entries
+(when (featurep 'tty)
+(set-face-underline-p face t locale (cons 'tty tags))))
+(lambda ()
+;; handle X specific entries
+(when (featurep 'x)
+(frob-face-property face 'font 'x-make-font-italic locale tags))
+(when (featurep 'mswindows)
+(frob-face-property face 'font 'mswindows-make-font-italic locale tags))
+)
+'(([default] . [italic])
+([bold] . [bold-italic])
+([italic] . t)
+([bold-italic] . t))))
+(defun make-face-bold-italic (face &optional locale tags)
+"Make FACE bold and italic in LOCALE, if possible.
+This will attempt to make the font bold-italic for X locales and will
+set the highlight and underline flags for TTY locales.
+See `make-face-bold' for the semantics of the LOCALE argument and
+for more specifics on exactly how this function works."
+(interactive (list (read-face-name "Make which face bold-italic: ")))
+(frob-face-font-2
+face locale tags 'default 'bold-italic
+(lambda ()
+;; handle TTY specific entries
+(when (featurep 'tty)
+(set-face-highlight-p face t locale (cons 'tty tags))
+(set-face-underline-p face t locale (cons 'tty tags))))
+(lambda ()
+;; handle X specific entries
+(when (featurep 'x)
+(frob-face-property face 'font 'x-make-font-bold-italic locale tags))
+(when (featurep 'mswindows)
+(frob-face-property face 'font 'mswindows-make-font-bold-italic locale tags))
+)
+'(([default] . [italic])
+([bold] . [bold-italic])
+([italic] . [bold-italic])
+([bold-italic] . t))))
+(defun make-face-unbold (face &optional locale tags)
+"Make FACE non-bold in LOCALE, if possible.
+This will attempt to make the font non-bold for X locales and will
+unset the highlight flag for TTY locales.
+See `make-face-bold' for the semantics of the LOCALE argument and
+for more specifics on exactly how this function works."
+(interactive (list (read-face-name "Make which face non-bold: ")))
+(frob-face-font-2
+face locale tags 'bold 'default
+(lambda ()
+;; handle TTY specific entries
+(when (featurep 'tty)
+(set-face-highlight-p face nil locale (cons 'tty tags))))
+(lambda ()
+;; handle X specific entries
+(when (featurep 'x)
+(frob-face-property face 'font 'x-make-font-unbold locale tags))
+(when (featurep 'mswindows)
+(frob-face-property face 'font 'mswindows-make-font-unbold locale tags))
+)
+'(([default] . t)
+([bold] . [default])
+([italic] . t)
+([bold-italic] . [italic]))))
+(defun make-face-unitalic (face &optional locale tags)
+"Make FACE non-italic in LOCALE, if possible.
+This will attempt to make the font non-italic for X locales and will
+unset the underline flag for TTY locales.
+See `make-face-bold' for the semantics of the LOCALE argument and
+for more specifics on exactly how this function works."
+(interactive (list (read-face-name "Make which face non-italic: ")))
+(frob-face-font-2
+face locale tags 'italic 'default
+(lambda ()
+;; handle TTY specific entries
+(when (featurep 'tty)
+(set-face-underline-p face nil locale (cons 'tty tags))))
+(lambda ()
+;; handle X specific entries
+(when (featurep 'x)
+(frob-face-property face 'font 'x-make-font-unitalic locale tags))
+(when (featurep 'mswindows)
+(frob-face-property face 'font 'mswindows-make-font-unitalic locale tags))
+)
+'(([default] . t)
+([bold] . t)
+([italic] . [default])
+([bold-italic] . [bold]))))
+;; Why do the following two functions lose so badly in so many
+;; circumstances?
+(defun make-face-smaller (face &optional locale)
+"Make the font of FACE be smaller, if possible.
+LOCALE works as in `make-face-bold' et al., but the ``inheriting-
+from-the-bold-face'' operations described there are not done
+because they don't make sense in this context."
+(interactive (list (read-face-name "Shrink which face: ")))
+;; handle X specific entries
+(when (featurep 'x)
+(frob-face-property face 'font 'x-find-smaller-font locale))
+(when (featurep 'mswindows)
+(frob-face-property face 'font 'mswindows-find-smaller-font locale)))
+(defun make-face-larger (face &optional locale)
+"Make the font of FACE be larger, if possible.
+See `make-face-smaller' for the semantics of the LOCALE argument."
+(interactive (list (read-face-name "Enlarge which face: ")))
+;; handle X specific entries
+(when (featurep 'x)
+(frob-face-property face 'font 'x-find-larger-font locale))
+(when (featurep 'mswindows)
+(frob-face-property face 'font 'mswindows-find-larger-font locale)))
+(defun invert-face (face &optional locale)
+"Swap the foreground and background colors of the face."
+(interactive (list (read-face-name "Invert face: ")))
+(if (valid-specifier-domain-p locale)
+(let ((foreface (face-foreground-instance face locale)))
+	(set-face-foreground face (face-background-instance face locale)
+			     locale)
+	(set-face-background face foreface locale))
+(let ((forespec (copy-specifier (face-foreground face) nil locale)))
+(copy-specifier (face-background face) (face-foreground face) locale)
+(copy-specifier forespec (face-background face) locale))))
+;;; Convenience functions
+(defun face-ascent (face &optional domain charset)
+"Return the ascent of FACE in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(font-ascent (face-font face) domain charset))
+(defun face-descent (face &optional domain charset)
+"Return the descent of FACE in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(font-descent (face-font face) domain charset))
+(defun face-width (face &optional domain charset)
+"Return the width of FACE in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(font-width (face-font face) domain charset))
+(defun face-height (face &optional domain charset)
+"Return the height of FACE in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(+ (face-ascent face domain charset) (face-descent face domain charset)))
+(defun face-proportional-p (face &optional domain charset)
+"Return t if FACE is proportional in DOMAIN.
+See `face-property-instance' for the semantics of the DOMAIN argument."
+(font-proportional-p (face-font face) domain charset))
+;; Functions that used to be in cus-face.el, but logically go here.
+(defcustom frame-background-mode nil
+"*The brightness of the background.
+Set this to the symbol dark if your background color is dark, light if
+your background is light, or nil (default) if you want Emacs to
+examine the brightness for you."
+:group 'faces
+:type '(choice (choice-item dark)
+		 (choice-item light)
+		 (choice-item :tag "Auto" nil)))
+;; The old variable that many people still have in .emacs files.
+(define-obsolete-variable-alias 'custom-background-mode
+'frame-background-mode)
+(defun get-frame-background-mode (frame)
+"Detect background mode for FRAME."
+(let* ((color-instance (face-background-instance 'default frame))
+	 (mode (condition-case nil
+		   (if (< (apply '+ (color-instance-rgb-components
+				     color-instance)) 65536)
+		       'dark 'light)
+		 ;; Here, we get an error on a TTY.  As we don't have
+		 ;; a good way of detecting whether a TTY is light or
+		 ;; dark, we'll guess it's dark.
+		 (error 'dark))))
+(set-frame-property frame 'background-mode mode)
+mode))
+(defun extract-custom-frame-properties (frame)
+"Return a plist with the frame properties of FRAME used by custom."
+(list 'type (or (frame-property frame 'display-type)
+		  (device-type (frame-device frame)))
+	'class (device-class (frame-device frame))
+	'background (or frame-background-mode
+			(frame-property frame 'background-mode)
+			(get-frame-background-mode frame))))
+(defcustom init-face-from-resources t
+"If non nil, attempt to initialize faces from the resource database."
+:group 'faces
+:type 'boolean)
+;; Old name, used by custom.  Also, FSFmacs name.
+(defvaralias 'initialize-face-resources 'init-face-from-resources)
+;; Make sure all custom setting are added with this tag so we can
+;; identify-them
+(define-specifier-tag 'custom)
+(defun face-spec-set (face spec &optional frame tags)
+"Set FACE's face attributes according to the first matching entry in SPEC.
+If optional FRAME is non-nil, set it for that frame only.
+If it is nil, then apply SPEC to each frame individually.
+See `defface' for information about SPEC."
+(if frame
+(progn
+	(reset-face face frame tags)
+	(face-display-set face spec frame tags)
+	(init-face-from-resources face frame))
+(let ((frames (relevant-custom-frames)))
+(reset-face face nil tags)
+;; This should not be needed. We only remove our own specifiers
+;; (if (and (eq 'default face) (featurep 'x))
+;;	  (x-init-global-faces))
+(face-display-set face spec nil tags)
+(while frames
+	(face-display-set face spec (car frames) tags)
+	(pop frames))
+(init-face-from-resources face))))
+(defun face-display-set (face spec &optional frame tags)
+"Set FACE to the attributes to the first matching entry in SPEC.
+Iff optional FRAME is non-nil, set it for that frame only.
+See `defface' for information about SPEC."
+(while spec
+(let ((display (caar spec))
+	  (atts (cadar spec)))
+(pop spec)
+(when (face-spec-set-match-display display frame)
+	;; Avoid creating frame local duplicates of the global face.
+	(unless (and frame (eq display (get face 'custom-face-display)))
+	  (apply 'face-custom-attributes-set face frame tags atts))
+	(unless frame
+	  (put face 'custom-face-display display))
+	(setq spec nil)))))
+(defvar default-custom-frame-properties nil
+"The frame properties used for the global faces.
+Frames not matching these propertiess should have frame local faces.
+The value should be nil, if uninitialized, or a plist otherwise.
+See `defface' for a list of valid keys and values for the plist.")
+(defun get-custom-frame-properties (&optional frame)
+"Return a plist with the frame properties of FRAME used by custom.
+If FRAME is nil, return the default frame properties."
+(cond (frame
+	 ;; Try to get from cache.
+	 (let ((cache (frame-property frame 'custom-properties)))
+	   (unless cache
+	     ;; Oh well, get it then.
+	     (setq cache (extract-custom-frame-properties frame))
+	     ;; and cache it...
+	     (set-frame-property frame 'custom-properties cache))
+	   cache))
+	(default-custom-frame-properties)
+	(t
+	 (setq default-custom-frame-properties
+	       (extract-custom-frame-properties (selected-frame))))))
+(defun face-spec-update-all-matching (spec display plist)
+"Update all entries in the face spec that could match display to
+have the entries from the new plist and return the new spec"
+(mapcar
+(lambda (e)
+(let ((entries (car e))
+	   (options (cadr e))
+	   (match t)
+	   dplist
+	   (new-options plist)
+	   )
+(unless (eq display t)
+	 (mapc (lambda (arg)
+		 (setq dplist (plist-put dplist (car arg) (cadr arg))))
+	       display))
+(unless (eq entries t)
+	 (mapc (lambda (arg)
+		 (setq match (and match (eq (cadr arg)
+					    (plist-get
+					      dplist (car arg)
+					      (cadr arg))))))
+	       entries))
+(if (not match)
+	   e
+	 (while new-options
+	   (setq options
+		 (plist-put options (car new-options) (cadr new-options)))
+	   (setq new-options (cddr new-options)))
+	 (list entries options))))
+(copy-sequence spec)))
+(defun face-spec-set-match-display (display &optional frame)
+"Return non-nil if DISPLAY matches FRAME.
+DISPLAY is part of a spec such as can be used in `defface'.
+If FRAME is nil or omitted, the selected frame is used."
+(if (eq display t)
+t
+(let* ((props (get-custom-frame-properties frame))
+	   (type (plist-get props 'type))
+	   (class (plist-get props 'class))
+	   (background (plist-get props 'background))
+	   (match t)
+	   (entries display)
+	   entry req options)
+(while (and entries match)
+	(setq entry (car entries)
+	      entries (cdr entries)
+	      req (car entry)
+	      options (cdr entry)
+	      match (case req
+		      (type       (memq type options))
+		      (class      (memq class options))
+		      (background (memq background options))
+		      (t (warn "Unknown req `%S' with options `%S'"
+			       req options)
+			 nil))))
+match)))
+(defun relevant-custom-frames ()
+"List of frames whose custom properties differ from the default."
+(let ((relevant nil)
+	(default (get-custom-frame-properties))
+	(frames (frame-list))
+	frame)
+(while frames
+(setq frame (car frames)
+	    frames (cdr frames))
+(unless (equal default (get-custom-frame-properties frame))
+	(push frame relevant)))
+relevant))
+(defun initialize-custom-faces (&optional frame)
+"Initialize all custom faces for FRAME.
+If FRAME is nil or omitted, initialize them for all frames."
+(mapc (lambda (symbol)
+	  (let ((spec (or (get symbol 'saved-face)
+			  (get symbol 'face-defface-spec))))
+	    (when spec
+	      ;; No need to init-face-from-resources -- code in
+	      ;; `init-frame-faces' does it already.
+	      (face-display-set symbol spec frame))))
+	(face-list)))
+(defun custom-initialize-frame (frame)
+"Initialize frame-local custom faces for FRAME if necessary."
+(unless (equal (get-custom-frame-properties)
+		 (get-custom-frame-properties frame))
+(initialize-custom-faces frame)))
+(defun make-empty-face (name &optional doc-string temporary)
+"Like `make-face', but doesn't query the resource database."
+(let ((init-face-from-resources nil))
+(make-face name doc-string temporary)))
+(defun init-face-from-resources (face &optional locale)
+"Initialize FACE from the resource database.
+If LOCALE is specified, it should be a frame, device, or 'global, and
+the face will be resourced over that locale.  Otherwise, the face will
+be resourced over all possible locales (i.e. all frames, all devices,
+and 'global)."
+(cond ((null init-face-from-resources)
+	 ;; Do nothing.
+	 )
+	((not locale)
+	 ;; Global, set for all frames.
+	 (progn
+	   (init-face-from-resources face 'global)
+	   (let ((devices (device-list)))
+	     (while devices
+	       (init-face-from-resources face (car devices))
+	       (setq devices (cdr devices))))
+	   (let ((frames (frame-list)))
+	     (while frames
+	       (init-face-from-resources face (car frames))
+	       (setq frames (cdr frames))))))
+	(t
+	 ;; Specific.
+	 (let ((devtype (cond ((devicep locale) (device-type locale))
+			      ((framep locale) (frame-type locale))
+			      (t nil))))
+	   (cond ((or (and (not devtype) (featurep 'x)) (eq 'x devtype))
+		  (x-init-face-from-resources face locale))
+		 ((or (not devtype) (eq 'tty devtype))
+		  ;; Nothing to do for TTYs?
+		  ))))))
+(defun init-device-faces (device)
+;; First, add any device-local face resources.
+(when init-face-from-resources
+(loop for face in (face-list) do
+	  (init-face-from-resources face device))
+;; Then do any device-specific initialization.
+(cond ((eq 'x (device-type device))
+	   (x-init-device-faces device))
+	  ((eq 'mswindows (device-type device))
+	   (mswindows-init-device-faces device))
+	  ;; Nothing to do for TTYs?
+	  )
+(or (eq 'stream (device-type device))
+	(init-other-random-faces device))))
+(defun init-frame-faces (frame)
+(when init-face-from-resources
+;; First, add any frame-local face resources.
+(loop for face in (face-list) do
+	  (init-face-from-resources face frame))
+;; Then do any frame-specific initialization.
+(cond ((eq 'x (frame-type frame))
+	   (x-init-frame-faces frame))
+	  ((eq 'mswindows (frame-type frame))
+	   (mswindows-init-frame-faces frame))
+	  ;; Is there anything which should be done for TTY's?
+	  )))
+;; #### This is somewhat X-specific, and is called when the first
+;; X device is created (even if there were TTY devices created
+;; beforehand).  The concept of resources has not been generalized
+;; outside of X-specificness, so we have to live with this
+;; breach of device-independence.
+(defun init-global-faces ()
+;; Look for global face resources.
+(loop for face in (face-list) do
+	(init-face-from-resources face 'global))
+;; Further X frobbing.
+(x-init-global-faces)
+;; for bold and the like, make the global specification be bold etc.
+;; if the user didn't already specify a value.  These will also be
+;; frobbed further in init-other-random-faces.
+(unless (face-font 'bold 'global)
+(make-face-bold 'bold 'global))
+;;
+(unless (face-font 'italic 'global)
+(make-face-italic 'italic 'global))
+;;
+(unless (face-font 'bold-italic 'global)
+(make-face-bold-italic 'bold-italic 'global)
+(unless (face-font 'bold-italic 'global)
+(copy-face 'bold 'bold-italic)
+(make-face-italic 'bold-italic)))
+(when (face-equal 'bold 'bold-italic)
+(copy-face 'italic 'bold-italic)
+(make-face-bold 'bold-italic))
+;;
+;; Nothing more to be done for X or TTY's?
+)
+;; These warnings are there for a reason.  Just specify your fonts
+;; correctly.  Deal with it.  Additionally, one can use
+;; `log-warning-minimum-level' instead of this.
+;(defvar inhibit-font-complaints nil
+;  "Whether to suppress complaints about incomplete sets of fonts.")
+(defun face-complain-about-font (face device)
+(if (symbolp face) (setq face (symbol-name face)))
+;;  (if (not inhibit-font-complaints)
+(display-warning
+'font
+(let ((default-name (face-font-name 'default device)))
+(format "%s: couldn't deduce %s %s version of the font
+%S.
+Please specify X resources to make the %s face
+visually distinguishable from the default face.
+For example, you could add one of the following to $HOME/Emacs:
+Emacs.%s.attributeFont: -dt-*-medium-i-*
+or
+Emacs.%s.attributeForeground: hotpink\n"
+invocation-name
+(if (string-match "\\`[aeiouAEIOU]" face) "an" "a")
+face
+default-name
+face
+face
+face
+))))
+;; #### This is quite a mess.  We should use the custom mechanism for
+;; most of this stuff.  Currently we don't do it, because Custom
+;; doesn't use specifiers (yet.)  FSF does it the Right Way.
+;; For instance, the definition of `bold' should be something like
+;; (defface bold ((t (:bold t))) "Bold text.") -- and `:bold t' should
+;; make sure that everything works properly.
+(defun init-other-random-faces (device)
+"Initialize the colors and fonts of the bold, italic, bold-italic,
+zmacs-region, list-mode-item-selected, highlight, primary-selection,
+secondary-selection, and isearch faces when each device is created.  If
+you want to add code to do stuff like this, use the create-device-hook."
+;; try to make 'bold look different from the default on this device.
+;; If that doesn't work at all, then issue a warning.
+(unless (face-differs-from-default-p 'bold device)
+(make-face-bold 'bold device)
+(unless (face-differs-from-default-p 'bold device)
+(make-face-unbold 'bold device)
+(unless (face-differs-from-default-p 'bold device)
+	;; the luser specified one of the bogus font names
+	(face-complain-about-font 'bold device))))
+;; Similar for italic.
+;; It's unreasonable to expect to be able to make a font italic all
+;; the time.  For many languages, italic is an alien concept.
+;; Basically, because italic is not a globally meaningful concept,
+;; the use of the italic face should really be oboleted.
+;; I disagree with above.  In many languages, the concept of capital
+;; letters is just as alien, and yet we use them.  Italic is here to
+;; stay.  -hniksic
+;; In a Solaris Japanese environment, there just aren't any italic
+;; fonts - period.  CDE recognizes this reality, and fonts
+;; -dt-interface user-medium-r-normal-*-*-*-*-*-*-*-*-* don't come
+;; in italic versions.  So we first try to make the font bold before
+;; complaining.
+(unless (face-differs-from-default-p 'italic device)
+(make-face-italic 'italic device)
+(unless (face-differs-from-default-p 'italic device)
+(make-face-bold 'italic device)
+(unless (face-differs-from-default-p 'italic device)
+	(face-complain-about-font 'italic device))))
+;; similar for bold-italic.
+(unless (face-differs-from-default-p 'bold-italic device)
+(make-face-bold-italic 'bold-italic device)
+;; if we couldn't get a bold-italic version, try just bold.
+(unless (face-differs-from-default-p 'bold-italic device)
+(make-face-bold 'bold-italic device)
+;; if we couldn't get bold or bold-italic, then that's probably because
+;; the default font is bold, so make the `bold-italic' face be unbold.
+(unless (face-differs-from-default-p 'bold-italic device)
+	(make-face-unbold 'bold-italic device)
+	(make-face-italic 'bold-italic device)
+	(unless (face-differs-from-default-p 'bold-italic device)
+	  ;; if that didn't work, try plain italic
+	  ;; (can this ever happen? what the hell.)
+	  (make-face-italic 'bold-italic device)
+	  (unless (face-differs-from-default-p 'bold-italic device)
+	    ;; then bitch and moan.
+	    (face-complain-about-font 'bold-italic device))))))
+;; Set the text-cursor colors unless already specified.
+(when (and (not (eq 'tty (device-type device)))
+	     (not (face-background 'text-cursor 'global))
+	     (face-property-equal 'text-cursor 'default 'background device))
+(set-face-background 'text-cursor [default foreground] 'global
+			 nil 'append))
+(when (and (not (eq 'tty (device-type device)))
+	     (not (face-foreground 'text-cursor 'global))
+	     (face-property-equal 'text-cursor 'default 'foreground device))
+(set-face-foreground 'text-cursor [default background] 'global
+			 nil 'append))
+)
+;; New function with 20.1, suggested by Per Abrahamsen, coded by Kyle Jones.
+(defun set-face-stipple (face pixmap &optional frame)
+"Change the stipple pixmap of FACE to PIXMAP.
+This is an Emacs compatibility function; consider using
+set-face-background-pixmap instead.
+PIXMAP should be a string, the name of a file of pixmap data.
+The directories listed in the `x-bitmap-file-path' variable are searched.
+Alternatively, PIXMAP may be a list of the form (WIDTH HEIGHT
+DATA) where WIDTH and HEIGHT are the size in pixels, and DATA is
+a string, containing the raw bits of the bitmap.  XBM data is
+expected in this case, other types of image data will not work.
+If the optional FRAME argument is provided, change only
+in that frame; otherwise change each frame."
+(while (not (find-face face))
+(setq face (signal 'wrong-type-argument (list 'facep face))))
+(locate-file pixmap x-bitmap-file-path '(".xbm" ""))
+(while (cond ((stringp pixmap)
+		(unless (file-readable-p pixmap)
+		  (setq pixmap `[xbm :file ,pixmap]))
+		nil)
+	       ((and (consp pixmap) (= (length pixmap) 3))
+		(setq pixmap `[xbm :data ,pixmap])
+		nil)
+	       (t t))
+(setq pixmap (signal 'wrong-type-argument
+			 (list 'stipple-pixmap-p pixmap))))
+(while (and frame (not (framep frame)))
+(setq frame (signal 'wrong-type-argument (list 'framep frame))))
+(set-face-background-pixmap face pixmap frame))
+;; Create the remaining standard faces now.  This way, packages that we dump
+;; can reference these faces as parents.
+;;
+;; The default, modeline, left-margin, right-margin, text-cursor,
+;; and pointer faces are created in C.
+(make-face 'bold "Bold text.")
+(make-face 'italic "Italic text.")
+(make-face 'bold-italic "Bold-italic text.")
+(make-face 'underline "Underlined text.")
+(or (face-differs-from-default-p 'underline)
+(set-face-underline-p 'underline t 'global '(default)))
+(make-face 'zmacs-region "Used on highlightes region between point and mark.")
+(make-face 'isearch "Used on region matched by isearch.")
+(make-face 'isearch-secondary "Face to use for highlighting all matches.")
+(make-face 'list-mode-item-selected
+	   "Face for the selected list item in list-mode.")
+(make-face 'highlight "Highlight face.")
+(make-face 'primary-selection "Primary selection face.")
+(make-face 'secondary-selection "Secondary selection face.")
+;; Several useful color faces.
+(eval-when-compile (load "cl-macs"))
+(dolist (color '(red green blue yellow))
+(make-face color (concat (symbol-name color) " text."))
+(set-face-foreground color (symbol-name color) nil 'color))
+;; Make some useful faces.  This happens very early, before creating
+;; the first non-stream device.
+(set-face-background 'text-cursor
+		     '(((x default) . "Red3")
+		       ((mswindows default) . "Red3"))
+		     'global)
+;; some older X servers don't recognize "darkseagreen2"
+(set-face-background 'highlight
+		     '(((x default color) . "darkseagreen2")
+		       ((x default color) . "green")
+		       ((x default grayscale) . "gray53")
+		       ((mswindows default color) . "darkseagreen2")
+		       ((mswindows default color) . "green")
+		       ((mswindows default grayscale) . "gray53"))
+		     'global)
+(set-face-background-pixmap 'highlight
+			    '(((x default mono) . "gray1")
+			      ((mswindows default mono) . "gray1"))
+			    'global)
+(set-face-background 'zmacs-region
+		     '(((x default color) . "gray65")
+		       ((x default grayscale) . "gray65")
+		       ((mswindows default color) . "gray65")
+		       ((mswindows default grayscale) . "gray65"))
+		     'global)
+(set-face-background-pixmap 'zmacs-region
+			    '(((x default mono) . "gray3")
+			      ((mswindows default mono) . "gray3"))
+			    'global)
+(set-face-background 'list-mode-item-selected
+		     '(((x default color) . "gray68")
+		       ((x default grayscale) . "gray68")
+		       ((x default mono) . [default foreground])
+		       ((mswindows default color) . "gray68")
+		       ((mswindows default grayscale) . "gray68")
+		       ((mswindows default mono) . [default foreground]))
+		     'global)
+(set-face-foreground 'list-mode-item-selected
+		     '(((x default mono) . [default background])
+		       ((mswindows default mono) . [default background]))
+		     'global)
+(set-face-background 'primary-selection
+		     '(((x default color) . "gray65")
+		       ((x default grayscale) . "gray65")
+		       ((mswindows default color) . "gray65")
+		       ((mswindows default grayscale) . "gray65"))
+		     'global)
+(set-face-background-pixmap 'primary-selection
+			    '(((x default mono) . "gray3")
+			      ((mswindows default mono) . "gray3"))
+			    'global)
+(set-face-background 'secondary-selection
+		     '(((x default color) . "paleturquoise")
+		       ((x default color) . "green")
+		       ((x default grayscale) . "gray53")
+		       ((mswindows default color) . "paleturquoise")
+		       ((mswindows default color) . "green")
+		       ((mswindows default grayscale) . "gray53"))
+		     'global)
+(set-face-background-pixmap 'secondary-selection
+			    '(((x default mono) . "gray1")
+			      ((mswindows default mono) . "gray1"))
+			    'global)
+(set-face-background 'isearch
+		     '(((x default color) . "paleturquoise")
+		       ((x default color) . "green")
+		       ((mswindows default color) . "paleturquoise")
+		       ((mswindows default color) . "green"))
+		     'global)
+;; #### This should really, I mean *really*, be converted to some form
+;; of `defface' one day.
+(set-face-foreground 'isearch-secondary
+		     '(((x default color) . "red3")
+		       ((mswindows default color) . "red3"))
+		     'global)
+;; Define some logical color names to be used when reading the pixmap files.
+(if (featurep 'xpm)
+(setq xpm-color-symbols
+	  (list
+	   (purecopy '("foreground" (face-foreground 'default)))
+	   (purecopy '("background" (face-background 'default)))
+	   (purecopy '("backgroundToolBarColor"
+		       (or
+			(and
+			 (featurep 'x)
+			 (x-get-resource "backgroundToolBarColor"
+					 "BackgroundToolBarColor" 'string))
+			(face-background 'toolbar))))
+	   (purecopy '("foregroundToolBarColor"
+		       (or
+			(and
+			 (featurep 'x)
+			 (x-get-resource "foregroundToolBarColor"
+					 "ForegroundToolBarColor" 'string))
+			(face-foreground 'toolbar))))
+	   )))
+(when (featurep 'tty)
+(set-face-highlight-p 'bold                    t 'global '(default tty))
+(set-face-underline-p 'italic                  t 'global '(default tty))
+(set-face-highlight-p 'bold-italic             t 'global '(default tty))
+(set-face-underline-p 'bold-italic             t 'global '(default tty))
+(set-face-highlight-p 'highlight               t 'global '(default tty))
+(set-face-reverse-p   'text-cursor             t 'global '(default tty))
+(set-face-reverse-p   'modeline                t 'global '(default tty))
+(set-face-reverse-p   'zmacs-region            t 'global '(default tty))
+(set-face-reverse-p   'primary-selection       t 'global '(default tty))
+(set-face-underline-p 'secondary-selection     t 'global '(default tty))
+(set-face-reverse-p   'list-mode-item-selected t 'global '(default tty))
+(set-face-reverse-p   'isearch                 t 'global '(default tty))
+)
+;;; faces.el ends here

Mercurial > hg > xemacs-beta

comparison lisp/faces.el @ 428:3ecd8885ac67 r21-2-22