mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-25 07:28:20 +00:00
1689 lines
58 KiB
EmacsLisp
1689 lines
58 KiB
EmacsLisp
;;; faces.el --- Lisp faces
|
||
|
||
;; Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999
|
||
;; Free Software Foundation, Inc.
|
||
|
||
;; This file is part of GNU Emacs.
|
||
|
||
;; GNU Emacs 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.
|
||
|
||
;; GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the
|
||
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
;; Boston, MA 02111-1307, USA.
|
||
|
||
;;; Commentary:
|
||
|
||
;;; Code:
|
||
|
||
(eval-when-compile
|
||
(require 'custom)
|
||
(require 'cl))
|
||
|
||
(require 'cus-face)
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Font selection.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defgroup font-selection nil
|
||
"Influencing face font selection."
|
||
:group 'faces)
|
||
|
||
|
||
(defcustom face-font-selection-order
|
||
'(:width :height :weight :slant)
|
||
"*A list specifying how face font selection chooses fonts.
|
||
Each of the four symbols `:width', `:height', `:weight', and `:slant'
|
||
must appear once in the list, and the list must not contain any other
|
||
elements. Font selection tries to find a best matching font for
|
||
those face attributes first that appear first in the list. For
|
||
example, if `:slant' appears before `:height', font selection first
|
||
tries to find a font with a suitable slant, even if this results in
|
||
a font height that isn't optimal."
|
||
:tag "Font selection order."
|
||
:group 'font-selection
|
||
:set #'(lambda (symbol value)
|
||
(set-default symbol value)
|
||
(internal-set-font-selection-order value)))
|
||
|
||
|
||
(defcustom face-font-family-alternatives
|
||
'(("courier" "fixed")
|
||
("helv" "helvetica" "fixed"))
|
||
"*Alist of alternative font family names.
|
||
Each element has the the form (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...).
|
||
If fonts of family FAMILY can't be loaded, try ALTERNATIVE1, then
|
||
ALTERNATIVE2 etc."
|
||
:tag "Alternative font families to try."
|
||
:group 'font-selection
|
||
:set #'(lambda (symbol value)
|
||
(set-default symbol value)
|
||
(internal-set-alternative-font-family-alist value)))
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Creation, copying.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
|
||
(defun face-list ()
|
||
"Return a list of all defined face names."
|
||
(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."
|
||
(interactive "SMake face: ")
|
||
(unless (facep face)
|
||
;; Make frame-local faces (this also makes the global one).
|
||
(dolist (frame (frame-list))
|
||
(internal-make-lisp-face face frame))
|
||
;; Add the face to the face menu.
|
||
(when (fboundp 'facemenu-add-new-face)
|
||
(facemenu-add-new-face face))
|
||
;; Define frame-local faces for all frames from X resources.
|
||
(unless no-init-from-resources
|
||
(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."
|
||
(interactive "SMake empty face: ")
|
||
(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."
|
||
(let ((inhibit-quit t))
|
||
(if (null frame)
|
||
(progn
|
||
(dolist (frame (frame-list))
|
||
(copy-face old-face new-face frame))
|
||
(copy-face old-face new-face t))
|
||
(internal-copy-lisp-face old-face new-face frame new-frame))
|
||
new-face))
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Obsolete functions
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
;; The functions in this section are defined because Lisp packages use
|
||
;; them, despite the prefix `internal-' suggesting that they are
|
||
;; private to the face implementation.
|
||
|
||
(defun internal-find-face (name &optional frame)
|
||
"Retrieve the face named NAME.
|
||
Return nil if there is no such face.
|
||
If the optional argument FRAME is given, this gets the face NAME for
|
||
that frame; otherwise, it uses the selected frame.
|
||
If FRAME is the symbol t, then the global, non-frame face is returned.
|
||
If NAME is already a face, it is simply returned.
|
||
|
||
This function is defined for compatibility with Emacs 20.2. It
|
||
should not be used anymore."
|
||
(facep name))
|
||
|
||
|
||
(defun internal-get-face (name &optional frame)
|
||
"Retrieve the face named NAME; error if there is none.
|
||
If the optional argument FRAME is given, this gets the face NAME for
|
||
that frame; otherwise, it uses the selected frame.
|
||
If FRAME is the symbol t, then the global, non-frame face is returned.
|
||
If NAME is already a face, it is simply returned.
|
||
|
||
This function is defined for compatibility with Emacs 20.2. It
|
||
should not be used anymore."
|
||
(or (internal-find-face name frame)
|
||
(check-face name)))
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Predicates, type checks.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defun facep (face)
|
||
"Return non-nil if FACE is a face name."
|
||
(internal-lisp-face-p face))
|
||
|
||
|
||
(defun check-face (face)
|
||
"Signal an error if FACE doesn't name a face.
|
||
Value is FACE."
|
||
(unless (facep face)
|
||
(error "Not a face: %s" face))
|
||
face)
|
||
|
||
|
||
;; The ID returned is not to be confused with the internally used IDs
|
||
;; of realized faces. The ID assigned to Lisp faces is used to
|
||
;; support faces in display table entries.
|
||
|
||
(defun face-id (face &optional frame)
|
||
"Return the interNal ID of face with name FACE.
|
||
If optional argument FRAME is nil or omitted, use the selected frame."
|
||
(check-face face)
|
||
(get face 'face))
|
||
|
||
|
||
(defun face-equal (face1 face2 &optional frame)
|
||
"Non-nil if faces FACE1 and FACE2 are equal.
|
||
Faces are considered equal if all their attributes are equal.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame."
|
||
(internal-lisp-face-equal-p face1 face2 frame))
|
||
|
||
|
||
(defun face-differs-from-default-p (face &optional frame)
|
||
"Non-nil if FACE displays differently from the default face.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame.
|
||
A face is considered to be ``the same'' as the default face if it is
|
||
actually specified in the same way (equal attributes) or if it is
|
||
fully-unspecified, and thus inherits the attributes of any face it
|
||
is displayed on top of."
|
||
(cond ((eq frame t) (setq frame nil))
|
||
((null frame) (setq frame (selected-frame))))
|
||
(let* ((v1 (internal-lisp-face-p face frame))
|
||
(n (if v1 (length v1) 0))
|
||
(v2 (internal-lisp-face-p 'default frame))
|
||
(i 1))
|
||
(unless v1
|
||
(error "Not a face: %S" face))
|
||
(while (and (< i n)
|
||
(or (eq 'unspecified (aref v1 i))
|
||
(equal (aref v1 i) (aref v2 i))))
|
||
(setq i (1+ i)))
|
||
(< i n)))
|
||
|
||
|
||
(defun face-nontrivial-p (face &optional frame)
|
||
"True if face FACE has some non-nil attribute.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame."
|
||
(not (internal-lisp-face-empty-p face frame)))
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Setting face attributes from X resources.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defcustom face-x-resources
|
||
'((:family (".attributeFamily" . "Face.AttributeFamily"))
|
||
(:width (".attributeWidth" . "Face.AttributeWidth"))
|
||
(:height (".attributeHeight" . "Face.AttributeHeight"))
|
||
(:weight (".attributeWeight" . "Face.AttributeWeight"))
|
||
(:slant (".attributeSlant" . "Face.AttributeSlant"))
|
||
(:foreground (".attributeForeground" . "Face.AttributeForeground"))
|
||
(:background (".attributeBackground" . "Face.AttributeBackground"))
|
||
(:overline (".attributeOverline" . "Face.AttributeOverline"))
|
||
(:strike-through (".attributeStrikeThrough" . "Face.AttributeStrikeThrough"))
|
||
(:box (".attributeBox" . "Face.AttributeBox"))
|
||
(:underline (".attributeUnderline" . "Face.AttributeUnderline"))
|
||
(:inverse-video (".attributeInverse" . "Face.AttributeInverse"))
|
||
(:stipple
|
||
(".attributeStipple" . "Face.AttributeStipple")
|
||
(".attributeBackgroundPixmap" . "Face.AttributeBackgroundPixmap"))
|
||
(:font (".attributeFont" . "Face.AttributeFont"))
|
||
(:bold (".attributeBold" . "Face.AttributeBold"))
|
||
(:italic (".attributeItalic" . "Face.AttributeItalic"))
|
||
(:font (".attributeFont" . "Face.AttributeFont")))
|
||
"*List of X resources and classes for face attributes.
|
||
Each element has the form (ATTRIBUTE ENTRY1 ENTRY2...) where ATTRIBUTE is
|
||
the name of a face attribute, and each ENTRY is a cons of the form
|
||
(RESOURCE . CLASS) with RESOURCE being the resource and CLASS being the
|
||
X resource class for the attribute."
|
||
:type 'sexp
|
||
:group 'faces)
|
||
|
||
|
||
(defun set-face-attribute-from-resource (face attribute resource class frame)
|
||
"Set FACE's ATTRIBUTE from X resource RESOURCE, class CLASS on FRAME.
|
||
Value is the attribute value specified by the resource, or nil
|
||
if not present. This function displays a message if the resource
|
||
specifies an invalid attribute."
|
||
(let* ((face-name (face-name face))
|
||
(value (internal-face-x-get-resource (concat face-name resource)
|
||
class frame)))
|
||
(when value
|
||
(condition-case ()
|
||
(internal-set-lisp-face-attribute-from-resource
|
||
face attribute (downcase value) frame)
|
||
(error
|
||
(message "Face %s, frame %s: invalid attribute %s %s from X resource"
|
||
face-name frame attribute value))))
|
||
value))
|
||
|
||
|
||
(defun set-face-attributes-from-resources (face frame)
|
||
"Set attributes of FACE from X resources for FRAME."
|
||
(when (memq (framep frame) '(x w32))
|
||
(dolist (definition face-x-resources)
|
||
(let ((attribute (car definition)))
|
||
(dolist (entry (cdr definition))
|
||
(set-face-attribute-from-resource face attribute (car entry)
|
||
(cdr entry) frame))))))
|
||
|
||
|
||
(defun make-face-x-resource-internal (face &optional frame)
|
||
"Fill frame-local FACE on FRAME from X resources.
|
||
FRAME nil or not specified means do it for all frames."
|
||
(if (null frame)
|
||
(dolist (frame (frame-list))
|
||
(set-face-attributes-from-resources face frame))
|
||
(set-face-attributes-from-resources face frame)))
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Retrieving face attributes.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defun face-name (face)
|
||
"Return the name of face FACE."
|
||
(symbol-name (check-face face)))
|
||
|
||
|
||
(defun face-attribute (face attribute &optional frame)
|
||
"Return the value of FACE's ATTRIBUTE on FRAME.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame."
|
||
(internal-get-lisp-face-attribute face attribute frame))
|
||
|
||
|
||
(defun face-foreground (face &optional frame)
|
||
"Return the foreground color name of FACE, or nil if unspecified.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame."
|
||
(internal-get-lisp-face-attribute face :foreground frame))
|
||
|
||
|
||
(defun face-background (face &optional frame)
|
||
"Return the background color name of FACE, or nil if unspecified.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame."
|
||
(internal-get-lisp-face-attribute face :background frame))
|
||
|
||
|
||
(defun face-stipple (face &optional frame)
|
||
"Return the stipple pixmap name of FACE, or nil if unspecified.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame."
|
||
(internal-get-lisp-face-attribute face :stipple frame))
|
||
|
||
|
||
(defalias 'face-background-pixmap 'face-stipple)
|
||
|
||
|
||
(defun face-underline-p (face &optional frame)
|
||
"Return non-nil if FACE is underlined.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame."
|
||
(eq (face-attribute face :underline frame) t))
|
||
|
||
|
||
(defun face-inverse-video-p (face &optional frame)
|
||
"Return non-nil if FACE is in inverse video on FRAME.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame."
|
||
(eq (face-attribute face :inverse-video frame) t))
|
||
|
||
|
||
(defun face-bold-p (face &optional frame)
|
||
"Return non-nil if the font of FACE is bold on FRAME.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame.
|
||
Use `face-attribute' for finer control."
|
||
(let ((bold (face-attribute face :weight frame)))
|
||
(memq bold '(semi-bold bold extra-bold ultra-bold))))
|
||
|
||
|
||
(defun face-italic-p (face &optional frame)
|
||
"Return non-nil if the font of FACE is italic on FRAME.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame.
|
||
Use `face-attribute' for finer control."
|
||
(let ((italic (face-attribute face :slant frame)))
|
||
(memq italic '(italic oblique))))
|
||
|
||
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Face documentation.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defun face-documentation (face)
|
||
"Get the documentation string for FACE."
|
||
(get face 'face-documentation))
|
||
|
||
|
||
(defun set-face-documentation (face string)
|
||
"Set the documentation string for FACE to STRING."
|
||
(put face 'face-documentation string))
|
||
|
||
|
||
(defalias 'face-doc-string 'face-documentation)
|
||
(defalias 'set-face-doc-string 'set-face-documentation)
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;; Setting face attributes.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
|
||
(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).
|
||
|
||
ARGS must come in pairs ATTRIBUTE VALUE. ATTRIBUTE must be a valid
|
||
face attribute name. All attributes can be set to `unspecified';
|
||
this fact is not further mentioned below.
|
||
|
||
The following attributes are recognized:
|
||
|
||
`:family'
|
||
|
||
VALUE must be a string specifying the font family, e.g. ``courier'',
|
||
or a fontset alias name. If a font family is specified, wild-cards `*'
|
||
and `?' are allowed.
|
||
|
||
`:width'
|
||
|
||
VALUE specifies the relative proportionate width of the font to use.
|
||
It must be one of the symbols `ultra-condensed', `extra-condensed',
|
||
`condensed', `semi-condensed', `normal', `semi-expanded', `expanded',
|
||
`extra-expanded', or `ultra-expanded'.
|
||
|
||
`:height'
|
||
|
||
VALUE must be an integer specifying the height of the font to use in
|
||
1/10 pt.
|
||
|
||
`:weight'
|
||
|
||
VALUE specifies the weight of the font to use. It must be one of the
|
||
symbols `ultra-bold', `extra-bold', `bold', `semi-bold', `normal',
|
||
`semi-light', `light', `extra-light', `ultra-light'.
|
||
|
||
`:slant'
|
||
|
||
VALUE specifies the slant of the font to use. It must be one of the
|
||
symbols `italic', `oblique', `normal', `reverse-italic', or
|
||
`reverse-oblique'.
|
||
|
||
`:foreground', `:background'
|
||
|
||
VALUE must be a color name, a string.
|
||
|
||
`:underline'
|
||
|
||
VALUE specifies whether characters in FACE should be underlined. If
|
||
VALUE is t, underline with foreground color of the face. If VALUE is
|
||
a string, underline with that color. If VALUE is nil, explicitly
|
||
don't underline.
|
||
|
||
`:overline'
|
||
|
||
VALUE specifies whether characters in FACE should be overlined. If
|
||
VALUE is t, overline with foreground color of the face. If VALUE is a
|
||
string, overline with that color. If VALUE is nil, explicitly don't
|
||
overline.
|
||
|
||
`:strike-through'
|
||
|
||
VALUE specifies whether characters in FACE should be drawn with a line
|
||
striking through them. If VALUE is t, use the foreground color of the
|
||
face. If VALUE is a string, strike-through with that color. If VALUE
|
||
is nil, explicitly don't strike through.
|
||
|
||
`:box'
|
||
|
||
VALUE specifies whether characters in FACE should have a box drawn
|
||
around them. If VALUE is nil, explicitly don't draw boxes. If
|
||
VALUE is t, draw a box with lines of width 1 in the foreground color
|
||
of the face. If VALUE is a string, the string must be a color name,
|
||
and the box is drawn in that color with a line width of 1. Otherwise,
|
||
VALUE must be a property list of the form `(:line-width WIDTH
|
||
:color COLOR :style STYLE)'. If a keyword/value pair is missing from
|
||
the property list, a default value will be used for the value, as
|
||
specified below. WIDTH specifies the width of the lines to draw; it
|
||
defaults to 1. COLOR is the name of the color to draw in, default is
|
||
the foreground color of the face for simple boxes, and the background
|
||
color of the face for 3D boxes. STYLE specifies whether a 3D box
|
||
should be draw. If STYLE is `released-button', draw a box looking
|
||
like a released 3D button. If STYLE is `pressed-button' draw a box
|
||
that appears like a pressed button. If STYLE is nil, the default if
|
||
the property list doesn't contain a style specification, draw a 2D
|
||
box.
|
||
|
||
`:inverse-video'
|
||
|
||
VALUE specifies whether characters in FACE should be displayed in
|
||
inverse video. VALUE must be one of t or nil.
|
||
|
||
`:stipple'
|
||
|
||
If VALUE is a string, it must be the name of a file of pixmap data.
|
||
The directories listed in the `x-bitmap-file-path' variable are
|
||
searched. Alternatively, VALUE 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. VALUE nil means
|
||
explicitly don't use a stipple pattern.
|
||
|
||
For convenience, attributes `:family', `:width', `:height', `:weight',
|
||
and `:slant' may also be set in one step from an X font name:
|
||
|
||
`:font'
|
||
|
||
Set font-related face attributes from VALUE. VALUE must be a valid
|
||
XLFD font name. If it is a font name pattern, the first matching font
|
||
will be used.
|
||
|
||
For compatibility with Emacs 20, keywords `:bold' and `:italic' can
|
||
be used to specify that a bold or italic font should be used. VALUE
|
||
must be t or nil in that case. A value of `unspecified' is not allowed."
|
||
(cond ((null frame)
|
||
;; Change face on all frames.
|
||
(dolist (frame (frame-list))
|
||
(apply #'set-face-attribute face frame args))
|
||
;; Record that as a default for new frames.
|
||
(apply #'set-face-attribute face t args))
|
||
(t
|
||
(while args
|
||
(internal-set-lisp-face-attribute face (car args)
|
||
(car (cdr args)) frame)
|
||
(setq args (cdr (cdr args)))))))
|
||
|
||
|
||
(defun make-face-bold (face &optional frame)
|
||
"Make the font of FACE be bold, if possible.
|
||
FRAME nil or not specified means change face on all frames.
|
||
Use `set-face-attribute' for finer control of the font weight."
|
||
(interactive (list (read-face-name "Make which face bold: ")))
|
||
(set-face-attribute face frame :weight 'bold))
|
||
|
||
|
||
(defun make-face-unbold (face &optional frame)
|
||
"Make the font of FACE be non-bold, if possible.
|
||
FRAME nil or not specified means change face on all frames."
|
||
(interactive (list (read-face-name "Make which face non-bold: ")))
|
||
(set-face-attribute face frame :weight 'normal))
|
||
|
||
|
||
(defun make-face-italic (face &optional frame)
|
||
"Make the font of FACE be italic, if possible.
|
||
FRAME nil or not specified means change face on all frames.
|
||
Use `set-face-attribute' for finer control of the font slant."
|
||
(interactive (list (read-face-name "Make which face italic: ")))
|
||
(set-face-attribute face frame :slant 'italic))
|
||
|
||
|
||
(defun make-face-unitalic (face &optional frame)
|
||
"Make the font of FACE be non-italic, if possible.
|
||
FRAME nil or not specified means change face on all frames."
|
||
(interactive (list (read-face-name "Make which face non-italic: ")))
|
||
(set-face-attribute face frame :slant 'normal))
|
||
|
||
|
||
(defun make-face-bold-italic (face &optional frame)
|
||
"Make the font of FACE be bold and italic, if possible.
|
||
FRAME nil or not specified means change face on all frames.
|
||
Use `set-face-attribute' for finer control of font weight and slant."
|
||
(interactive (list (read-face-name "Make which face bold-italic: ")))
|
||
(set-face-attribute face frame :weight 'bold :slant 'italic))
|
||
|
||
|
||
(defun set-face-font (face font &optional frame)
|
||
"Change font-related attributes of FACE to those of FONT (a string).
|
||
FRAME nil or not specified means change face on all frames.
|
||
This sets the attributes `:family', `:width', `:height', `:weight',
|
||
and `:slant'. When called interactively, prompt for the face and font."
|
||
(interactive (read-face-and-attribute :font))
|
||
(set-face-attribute face frame :font font))
|
||
|
||
|
||
;; Implementation note: Emulating gray background colors with a
|
||
;; stipple pattern is now part of the face realization process, and is
|
||
;; done in C depending on the frame on which the face is realized.
|
||
|
||
(defun set-face-background (face color &optional frame)
|
||
"Change the background color of face FACE to COLOR (a string).
|
||
FRAME nil or not specified means change face on all frames.
|
||
When called interactively, prompt for the face and color."
|
||
(interactive (read-face-and-attribute :background))
|
||
(set-face-attribute face frame :background color))
|
||
|
||
|
||
(defun set-face-foreground (face color &optional frame)
|
||
"Change the foreground color of face FACE to COLOR (a string).
|
||
FRAME nil or not specified means change face on all frames.
|
||
When called interactively, prompt for the face and color."
|
||
(interactive (read-face-and-attribute :foreground))
|
||
(set-face-attribute face frame :foreground color))
|
||
|
||
|
||
(defun set-face-stipple (face stipple &optional frame)
|
||
"Change the stipple pixmap of face FACE to STIPPLE.
|
||
FRAME nil or not specified means change face on all frames.
|
||
STIPPLE. 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, STIPPLE 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."
|
||
(interactive (read-face-and-attribute :stipple))
|
||
(set-face-attribute face frame :stipple stipple))
|
||
|
||
|
||
(defun set-face-underline (face underline &optional frame)
|
||
"Specify whether face FACE is underlined.
|
||
UNDERLINE nil means FACE explicitly doesn't underline.
|
||
UNDERLINE non-nil means FACE explicitly does underlining
|
||
with the same of the foreground color.
|
||
If UNDERLINE is a string, underline with the color named UNDERLINE.
|
||
FRAME nil or not specified means change face on all frames.
|
||
Use `set-face-attribute' to ``unspecify'' underlining."
|
||
(interactive
|
||
(let ((list (read-face-and-attribute :underline)))
|
||
(list (car list) (eq (car (cdr list)) t))))
|
||
(set-face-attribute face frame :underline underline))
|
||
|
||
|
||
(defun set-face-underline-p (face underline-p &optional frame)
|
||
"Specify whether face FACE is underlined.
|
||
UNDERLINE-P nil means FACE explicitly doesn't underline.
|
||
UNDERLINE-P non-nil means FACE explicitly does underlining.
|
||
FRAME nil or not specified means change face on all frames.
|
||
Use `set-face-attribute' to ``unspecify'' underlining."
|
||
(interactive
|
||
(let ((list (read-face-and-attribute :underline)))
|
||
(list (car list) (eq (car (cdr list)) t))))
|
||
(set-face-attribute face frame :underline underline-p))
|
||
|
||
|
||
(defun set-face-inverse-video-p (face inverse-video-p &optional frame)
|
||
"Specify whether face FACE is in inverse video.
|
||
INVERSE-VIDEO-P non-nil means FACE displays explicitly in inverse video.
|
||
INVERSE-VIDEO-P nil means FACE explicitly is not in inverse video.
|
||
FRAME nil or not specified means change face on all frames.
|
||
Use `set-face-attribute' to ``unspecify'' the inverse video attribute."
|
||
(interactive
|
||
(let ((list (read-face-and-attribute :inverse-video)))
|
||
(list (car list) (eq (car (cdr list)) t))))
|
||
(set-face-attribute face frame :inverse-video inverse-video-p))
|
||
|
||
|
||
(defun set-face-bold-p (face bold-p &optional frame)
|
||
"Specify whether face FACE is bold.
|
||
BOLD-P non-nil means FACE should explicitly display bold.
|
||
BOLD-P nil means FACE should explicitly display non-bold.
|
||
FRAME nil or not specified means change face on all frames.
|
||
Use `set-face-attribute' or `modify-face' for finer control."
|
||
(if (null bold-p)
|
||
(make-face-unbold face frame)
|
||
(make-face-bold face frame)))
|
||
|
||
|
||
(defun set-face-italic-p (face italic-p &optional frame)
|
||
"Specify whether face FACE is italic.
|
||
ITALIC-P non-nil means FACE should explicitly display italic.
|
||
ITALIC-P nil means FACE should explicitly display non-italic.
|
||
FRAME nil or not specified means change face on all frames.
|
||
Use `set-face-attribute' or `modify-face' for finer control."
|
||
(if (null italic-p)
|
||
(make-face-unitalic face frame)
|
||
(make-face-italic face frame)))
|
||
|
||
|
||
(defalias 'set-face-background-pixmap 'set-face-stipple)
|
||
|
||
|
||
(defun invert-face (face &optional frame)
|
||
"Swap the foreground and background colors of FACE.
|
||
FRAME nil or not specified means change face on all frames.
|
||
If FACE specifies neither foreground nor background color,
|
||
set its foreground and background to the background and foreground
|
||
of the default face. Value is FACE."
|
||
(interactive (list (read-face-name "Invert face: ")))
|
||
(let ((fg (face-attribute face :foreground frame))
|
||
(bg (face-attribute face :background frame)))
|
||
(if (or fg bg)
|
||
(set-face-attribute face frame :foreground bg :background fg)
|
||
(set-face-attribute face frame
|
||
:foreground
|
||
(face-attribute 'default :background frame)
|
||
:background
|
||
(face-attribute 'default :foreground frame))))
|
||
face)
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Interactively modifying faces.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defun read-face-name (prompt)
|
||
"Read and return a face symbol, prompting with PROMPT.
|
||
Value is a symbol naming a known face."
|
||
(let ((face-list (mapcar #'(lambda (x) (cons (symbol-name x) x))
|
||
(face-list)))
|
||
face)
|
||
(while (equal "" (setq face (completing-read prompt face-list nil t))))
|
||
(intern face)))
|
||
|
||
|
||
(defun face-valid-attribute-values (attribute &optional frame)
|
||
"Return valid values for face attribute ATTRIBUTE.
|
||
The optional argument FRAME is used to determine available fonts
|
||
and colors. If it is nil or not specified, the selected frame is
|
||
used. Value is an alist of (NAME . VALUE) if ATTRIBUTE expects a value
|
||
out of a set of discrete values. Value is `integerp' if ATTRIBUTE expects
|
||
an integer value."
|
||
(let (valid)
|
||
(setq valid
|
||
(case attribute
|
||
(:family
|
||
(if window-system
|
||
(mapcar #'(lambda (x) (cons (car x) (car x)))
|
||
(x-font-family-list))
|
||
;; Only one font on TTYs.
|
||
(list (cons "default" "default"))))
|
||
((:width :weight :slant :inverse-video)
|
||
(mapcar #'(lambda (x) (cons (symbol-name x) x))
|
||
(internal-lisp-face-attribute-values attribute)))
|
||
((:underline :overline :strike-through :box)
|
||
(if window-system
|
||
(nconc (mapcar #'(lambda (x) (cons (symbol-name x) x))
|
||
(internal-lisp-face-attribute-values attribute))
|
||
(mapcar #'(lambda (c) (cons c c))
|
||
(x-defined-colors frame)))
|
||
(mapcar #'(lambda (x) (cons (symbol-name x) x))
|
||
(internal-lisp-face-attribute-values attribute))))
|
||
((:foreground :background)
|
||
(mapcar #'(lambda (c) (cons c c))
|
||
(or (and window-system (x-defined-colors frame))
|
||
(tty-defined-colors))))
|
||
((:height)
|
||
'integerp)
|
||
(:stipple
|
||
(and (memq window-system '(x w32))
|
||
(mapcar #'list
|
||
(apply #'nconc (mapcar #'directory-files
|
||
x-bitmap-file-path)))))
|
||
(t
|
||
(error "Internal error"))))
|
||
(if (listp valid)
|
||
(nconc (list (cons "unspecified" 'unspecified)) valid)
|
||
valid)))
|
||
|
||
|
||
|
||
(defvar face-attribute-name-alist
|
||
'((:family . "font family")
|
||
(:width . "character set width")
|
||
(:height . "height in 1/10 pt")
|
||
(:weight . "weight")
|
||
(:slant . "slant")
|
||
(:underline . "underline")
|
||
(:overline . "overline")
|
||
(:strike-through . "strike-through")
|
||
(:box . "box")
|
||
(:inverse-video . "inverse-video display")
|
||
(:foreground . "foreground color")
|
||
(:background . "background color")
|
||
(:stipple . "background stipple"))
|
||
"An alist of descriptive names for face attributes.
|
||
Each element has the form (ATTRIBUTE-NAME . DESCRIPTION) where
|
||
ATTRIBUTE-NAME is a face attribute name (a keyword symbol), and
|
||
DESCRIPTION is a descriptive name for ATTRIBUTE-NAME.")
|
||
|
||
|
||
(defun face-descriptive-attribute-name (attribute)
|
||
"Return a descriptive name for ATTRIBUTE."
|
||
(cdr (assq attribute face-attribute-name-alist)))
|
||
|
||
|
||
(defun face-read-string (face default name &optional completion-alist)
|
||
"Interactively read a face attribute string value.
|
||
FACE is the face whose attribute is read. DEFAULT is the default
|
||
value to return if no new value is entered. NAME is a descriptive
|
||
name of the attribute for prompting. COMPLETION-ALIST is an alist
|
||
of valid values, if non-nil.
|
||
|
||
Entering nothing accepts the default value DEFAULT.
|
||
Value is the new attribute value."
|
||
(let* ((completion-ignore-case t)
|
||
(value (completing-read
|
||
(if default
|
||
(format "Set face %s %s (default %s): "
|
||
face name (downcase (if (symbolp default)
|
||
(symbol-name default)
|
||
default)))
|
||
(format "Set face %s %s: " face name))
|
||
completion-alist)))
|
||
(if (equal value "") default value)))
|
||
|
||
|
||
(defun face-read-integer (face default name)
|
||
"Interactively read an integer face attribute value.
|
||
FACE is the face whose attribute is read. DEFAULT is the default
|
||
value to return if no new value is entered. NAME is a descriptive
|
||
name of the attribute for prompting. Value is the new attribute value."
|
||
(let ((new-value
|
||
(face-read-string face
|
||
(if (eq default 'unspecified)
|
||
'unspecified
|
||
(int-to-string default))
|
||
name
|
||
(list (cons "unspecified" 'unspecified)))))
|
||
(if (eq new-value 'unspecified)
|
||
new-value
|
||
(string-to-int new-value))))
|
||
|
||
|
||
(defun read-face-attribute (face attribute &optional frame)
|
||
"Interactively read a new value for FACE's ATTRIBUTE.
|
||
Optional argument FRAME nil or unspecified means read an attribute value
|
||
of a global face. Value is the new attribute value."
|
||
(let* ((old-value (face-attribute face attribute frame))
|
||
(attribute-name (face-descriptive-attribute-name attribute))
|
||
(valid (face-valid-attribute-values attribute frame))
|
||
new-value)
|
||
;; Represent complex attribute values as strings by printing them
|
||
;; out. Stipple can be a vector; (WIDTH HEIGHT DATA). Box can be
|
||
;; a list `(:width WIDTH :color COLOR)' or `(:width WIDTH :shadow
|
||
;; SHADOW)'.
|
||
(when (and (or (eq attribute :stipple)
|
||
(eq attribute :box))
|
||
(or (consp old-value)
|
||
(vectorp old-value)))
|
||
(setq old-value (prin1-to-string old-value)))
|
||
(cond ((listp valid)
|
||
(setq new-value
|
||
(face-read-string face old-value attribute-name valid))
|
||
(unless (eq new-value 'unspecified)
|
||
(setq new-value (cdr (assoc new-value valid)))))
|
||
((eq valid 'integerp)
|
||
(setq new-value (face-read-integer face old-value attribute-name)))
|
||
(t (error "Internal error")))
|
||
;; Convert stipple and box value text we read back to a list or
|
||
;; vector if it looks like one. This makes the assumption that a
|
||
;; pixmap file name won't start with an open-paren.
|
||
(when (and (or (eq attribute :stipple)
|
||
(eq attribute :box))
|
||
(stringp new-value)
|
||
(string-match "^[[(]" new-value))
|
||
(setq new-value (read new-value)))
|
||
new-value))
|
||
|
||
|
||
(defun read-face-font (face &optional frame)
|
||
"Read the name of a font for FACE on FRAME.
|
||
If optional argument FRAME Is nil or omitted, use the selected frame."
|
||
(let ((completion-ignore-case t))
|
||
(completing-read "Set font attributes of face %s from font: "
|
||
face (x-list-fonts "*" nil frame))))
|
||
|
||
|
||
(defun read-all-face-attributes (face &optional frame)
|
||
"Interactively read all attributes for FACE.
|
||
If optional argument FRAME Is nil or omitted, use the selected frame.
|
||
Value is a property list of attribute names and new values."
|
||
(let (result)
|
||
(dolist (attribute face-attribute-name-alist result)
|
||
(setq result (cons (car attribute)
|
||
(cons (read-face-attribute face (car attribute) frame)
|
||
result))))))
|
||
|
||
|
||
(defun modify-face (&optional frame)
|
||
"Modify attributes of faces interactively.
|
||
If optional argument FRAME is nil or omitted, modify the face used
|
||
for newly created frame, i.e. the global face."
|
||
(interactive)
|
||
(let ((face (read-face-name "Modify face: ")))
|
||
(apply #'set-face-attribute face frame
|
||
(read-all-face-attributes face frame))))
|
||
|
||
|
||
(defun read-face-and-attribute (attribute &optional frame)
|
||
"Read face name and face attribute value.
|
||
ATTRIBUTE is the attribute whose new value is read.
|
||
FRAME nil or unspecified means read attribute value of global face.
|
||
Value is a list (FACE NEW-VALUE) where FACE is the face read
|
||
(a symbol), and NEW-VALUE is value read."
|
||
(cond ((eq attribute :font)
|
||
(let* ((prompt (format "Set font-related attributes of face: "))
|
||
(face (read-face-name prompt))
|
||
(font (read-face-font face frame)))
|
||
(list face font)))
|
||
(t
|
||
(let* ((attribute-name (face-descriptive-attribute-name attribute))
|
||
(prompt (format "Set %s of face: " attribute-name))
|
||
(face (read-face-name prompt))
|
||
(new-value (read-face-attribute face attribute frame)))
|
||
(list face new-value)))))
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Listing faces.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defvar list-faces-sample-text
|
||
"abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
||
"*Text string to display as the sample text for `list-faces-display'.")
|
||
|
||
|
||
;; The name list-faces would be more consistent, but let's avoid a
|
||
;; conflict with Lucid, which uses that name differently.
|
||
|
||
(defun list-faces-display ()
|
||
"List all faces, using the same sample text in each.
|
||
The sample text is a string that comes from the variable
|
||
`list-faces-sample-text'."
|
||
(interactive)
|
||
(let ((faces (sort (face-list) #'string-lessp))
|
||
(face nil)
|
||
(frame (selected-frame))
|
||
disp-frame window)
|
||
(with-output-to-temp-buffer "*Faces*"
|
||
(save-excursion
|
||
(set-buffer standard-output)
|
||
(setq truncate-lines t)
|
||
(while faces
|
||
(setq face (car faces))
|
||
(setq faces (cdr faces))
|
||
(insert (format "%25s " (face-name face)))
|
||
(let ((beg (point)))
|
||
(insert list-faces-sample-text)
|
||
(insert "\n")
|
||
(put-text-property beg (1- (point)) 'face face)
|
||
;; If the sample text has multiple lines, line up all of them.
|
||
(goto-char beg)
|
||
(forward-line 1)
|
||
(while (not (eobp))
|
||
(insert " ")
|
||
(forward-line 1))))
|
||
(goto-char (point-min)))
|
||
(print-help-return-message))
|
||
;; If the *Faces* buffer appears in a different frame,
|
||
;; copy all the face definitions from FRAME,
|
||
;; so that the display will reflect the frame that was selected.
|
||
(setq window (get-buffer-window (get-buffer "*Faces*") t))
|
||
(setq disp-frame (if window (window-frame window)
|
||
(car (frame-list))))
|
||
(or (eq frame disp-frame)
|
||
(let ((faces (face-list)))
|
||
(while faces
|
||
(copy-face (car faces) (car faces) frame disp-frame)
|
||
(setq faces (cdr faces)))))))
|
||
|
||
|
||
(defun describe-face (face &optional frame)
|
||
"Display the properties of face FACE on FRAME.
|
||
If the optional argument FRAME is given, report on face FACE in that frame.
|
||
If FRAME is t, report on the defaults for face FACE (for new frames).
|
||
If FRAME is omitted or nil, use the selected frame."
|
||
(interactive (list (read-face-name "Describe face: ")))
|
||
(let* ((attrs '((:family . "Family")
|
||
(:width . "Width")
|
||
(:height . "Height")
|
||
(:weight . "Weight")
|
||
(:slant . "Slant")
|
||
(:foreground . "Foreground")
|
||
(:background . "Background")
|
||
(:underline . "Underline")
|
||
(:overline . "Overline")
|
||
(:strike-through . "Strike-through")
|
||
(:box . "Box")
|
||
(:inverse-video . "Inverse")
|
||
(:stipple . "Stipple")))
|
||
(max-width (apply #'max (mapcar #'(lambda (x) (length (cdr x)))
|
||
attrs))))
|
||
(with-output-to-temp-buffer "*Help*"
|
||
(save-excursion
|
||
(set-buffer standard-output)
|
||
(dolist (a attrs)
|
||
(let ((attr (face-attribute face (car a) frame)))
|
||
(insert (make-string (- max-width (length (cdr a))) ?\ )
|
||
(cdr a) ": " (format "%s" attr) "\n")))
|
||
(insert "\nDocumentation:\n\n"
|
||
(or (face-documentation face)
|
||
"not documented as a face.")))
|
||
(print-help-return-message))))
|
||
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Face specifications (defface).
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
;; Parameter FRAME Is kept for call compatibility to with previous
|
||
;; face implementation.
|
||
|
||
(defun face-attr-construct (face &optional frame)
|
||
"Return a defface-style attribute list for FACE on FRAME.
|
||
Value is a property list of pairs ATTRIBUTE VALUE for all specified
|
||
face attributes of FACE where ATTRIBUTE is the attribute name and
|
||
VALUE is the specified value of that attribute."
|
||
(let (result)
|
||
(dolist (entry face-attribute-name-alist result)
|
||
(let* ((attribute (car entry))
|
||
(value (face-attribute face attribute)))
|
||
(unless (eq value 'unspecified)
|
||
(setq result (nconc (list attribute value) result)))))))
|
||
|
||
|
||
(defun face-spec-set-match-display (display frame)
|
||
"Non-nil if DISPLAY matches FRAME.
|
||
DISPLAY is part of a spec such as can be used in `defface'.
|
||
If FRAME is nil, the current FRAME is used."
|
||
(let* ((conjuncts display)
|
||
conjunct req options
|
||
;; t means we have succeeded against all the conjuncts in
|
||
;; DISPLAY that have been tested so far.
|
||
(match t))
|
||
(if (eq conjuncts t)
|
||
(setq conjuncts nil))
|
||
(while (and conjuncts match)
|
||
(setq conjunct (car conjuncts)
|
||
conjuncts (cdr conjuncts)
|
||
req (car conjunct)
|
||
options (cdr conjunct)
|
||
match (cond ((eq req 'type)
|
||
(or (memq window-system options)
|
||
(and (null window-system)
|
||
(memq 'tty options))))
|
||
((eq req 'class)
|
||
(memq (frame-parameter frame 'display-type) options))
|
||
((eq req 'background)
|
||
(memq (frame-parameter frame 'background-mode)
|
||
options))
|
||
(t (error "Unknown req `%S' with options `%S'"
|
||
req options)))))
|
||
match))
|
||
|
||
|
||
(defun face-spec-choose (spec &optional frame)
|
||
"Choose the proper attributes for FRAME, out of SPEC."
|
||
(unless frame
|
||
(setq frame (selected-frame)))
|
||
(let ((tail spec)
|
||
result)
|
||
(while tail
|
||
(let* ((entry (car tail))
|
||
(display (nth 0 entry))
|
||
(attrs (nth 1 entry)))
|
||
(setq tail (cdr tail))
|
||
(when (face-spec-set-match-display display frame)
|
||
(setq result attrs tail nil))))
|
||
result))
|
||
|
||
|
||
(defun face-spec-reset-face (face &optional frame)
|
||
"Reset all attributes of FACE on FRAME to unspecified."
|
||
(let ((attrs face-attribute-name-alist)
|
||
params)
|
||
(while attrs
|
||
(let ((attr-and-name (car attrs)))
|
||
(setq params (cons (car attr-and-name) (cons 'unspecified params))))
|
||
(setq attrs (cdr attrs)))
|
||
(apply #'set-face-attribute face frame params)))
|
||
|
||
|
||
(defun face-spec-set (face spec &optional frame)
|
||
"Set FACE's attributes according to the first matching entry in SPEC.
|
||
FRAME is the frame whose frame-local face is set. FRAME nil means
|
||
do it on all frames. See `defface' for information about SPEC."
|
||
(let ((attrs (face-spec-choose spec frame))
|
||
params)
|
||
(while attrs
|
||
(let ((attribute (car attrs))
|
||
(value (car (cdr attrs))))
|
||
;; Support some old-style attribute names and values.
|
||
(case attribute
|
||
(:bold (setq attribute :weight value (if value 'bold 'normal)))
|
||
(:italic (setq attribute :slant value (if value 'italic 'normal))))
|
||
(setq params (cons attribute (cons value params))))
|
||
(setq attrs (cdr (cdr attrs))))
|
||
(face-spec-reset-face face frame)
|
||
(apply #'set-face-attribute face frame params)))
|
||
|
||
|
||
(defun face-attr-match-p (face attrs &optional frame)
|
||
"Value is non-nil if attributes of FACE match values in plist ATTRS.
|
||
Optional parameter FRAME is the frame whose definition of FACE
|
||
is used. If nil or omitted, use the selected frame."
|
||
(unless frame
|
||
(setq frame (selected-frame)))
|
||
(let ((list face-attribute-name-alist)
|
||
(match t))
|
||
(while (and match (not (null list)))
|
||
(let* ((attr (car (car list)))
|
||
(specified-value (plist-get attrs attr))
|
||
(value-now (face-attribute face attr frame)))
|
||
(when specified-value
|
||
(setq match (equal specified-value value-now)))
|
||
(setq list (cdr list))))
|
||
match))
|
||
|
||
|
||
(defun face-spec-match-p (face spec &optional frame)
|
||
"Return t if FACE, on FRAME, matches what SPEC says it should look like."
|
||
(face-attr-match-p face (face-spec-choose spec frame) frame))
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Background mode.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(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
|
||
:set #'(lambda (var value)
|
||
(set var value)
|
||
(mapcar 'frame-set-background-mode (frame-list)))
|
||
:initialize 'custom-initialize-changed
|
||
:type '(choice (choice-item dark)
|
||
(choice-item light)
|
||
(choice-item :tag "default" nil)))
|
||
|
||
|
||
(defun frame-set-background-mode (frame)
|
||
"Set up the `background-mode' and `display-type' frame parameters for FRAME."
|
||
(let* ((bg-resource
|
||
(and window-system
|
||
(x-get-resource ".backgroundMode" "BackgroundMode")))
|
||
(params (frame-parameters frame))
|
||
(bg-mode (cond (frame-background-mode)
|
||
((null window-system)
|
||
;; No way to determine this automatically (?).
|
||
'dark)
|
||
(bg-resource
|
||
(intern (downcase bg-resource)))
|
||
((< (apply '+ (x-color-values
|
||
(cdr (assq 'background-color
|
||
params))
|
||
frame))
|
||
;; Just looking at the screen, colors whose
|
||
;; values add up to .6 of the white total
|
||
;; still look dark to me.
|
||
(* (apply '+ (x-color-values "white" frame)) .6))
|
||
'dark)
|
||
(t 'light)))
|
||
(display-type (cond ((null window-system)
|
||
(if (tty-display-color-p) 'color 'mono))
|
||
((x-display-color-p frame)
|
||
'color)
|
||
((x-display-grayscale-p frame)
|
||
'grayscale)
|
||
(t 'mono))))
|
||
(modify-frame-parameters frame
|
||
(list (cons 'background-mode bg-mode)
|
||
(cons 'display-type display-type))))
|
||
|
||
;; For all named faces, choose face specs matching the new frame
|
||
;; parameters.
|
||
(let ((face-list (face-list)))
|
||
(while face-list
|
||
(let* ((face (car face-list))
|
||
(spec (get face 'face-defface-spec)))
|
||
(when spec
|
||
(face-spec-set face spec frame))
|
||
(setq face-list (cdr face-list))))))
|
||
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Frame creation.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defun x-handle-named-frame-geometry (parameters)
|
||
"Add geometry parameters for a named frame to parameter list PARAMETERS.
|
||
Value is the new parameter list."
|
||
(let* ((name (or (cdr (assq 'name parameters))
|
||
(cdr (assq 'name default-frame-alist))))
|
||
(x-resource-name name)
|
||
(res-geometry (if name (x-get-resource "geometry" "Geometry"))))
|
||
(when res-geometry
|
||
(let ((parsed (x-parse-geometry res-geometry)))
|
||
;; If the resource specifies a position, call the position
|
||
;; and size "user-specified".
|
||
(when (or (assq 'top parsed)
|
||
(assq 'left parsed))
|
||
(setq parsed (append '((user-position . t) (user-size . t)) parsed)))
|
||
;; Put the geometry parameters at the end. Copy
|
||
;; default-frame-alist so that they go after it.
|
||
(setq parameters (append parameters default-frame-alist parsed))))
|
||
parameters))
|
||
|
||
|
||
(defun x-handle-reverse-video (frame parameters)
|
||
"Handle the reverse-video frame parameter and X resource.
|
||
`x-create-frame' does not handle this one."
|
||
(when (cdr (or (assq 'reverse parameters)
|
||
(assq 'reverse default-frame-alist)
|
||
(let ((resource (x-get-resource "reverseVideo"
|
||
"ReverseVideo")))
|
||
(if resource
|
||
(cons nil (member (downcase resource)
|
||
'("on" "true")))))))
|
||
(let* ((params (frame-parameters frame))
|
||
(bg (cdr (assq 'foreground-color params)))
|
||
(fg (cdr (assq 'background-color params))))
|
||
(modify-frame-parameters frame
|
||
(list (cons 'foreground-color fg)
|
||
(cons 'background-color bg)))
|
||
(if (equal bg (cdr (assq 'border-color params)))
|
||
(modify-frame-parameters frame
|
||
(list (cons 'border-color fg))))
|
||
(if (equal bg (cdr (assq 'mouse-color params)))
|
||
(modify-frame-parameters frame
|
||
(list (cons 'mouse-color fg))))
|
||
(if (equal bg (cdr (assq 'cursor-color params)))
|
||
(modify-frame-parameters frame
|
||
(list (cons 'cursor-color fg)))))))
|
||
|
||
|
||
(defun x-create-frame-with-faces (&optional parameters)
|
||
"Create a frame from optional frame parameters PARAMETERS.
|
||
Parameters not specified by PARAMETERS are taken from
|
||
`default-frame-alist'. If PARAMETERS specify a frame name,
|
||
handle X geometry resources for that name. If either PARAMETERS
|
||
or `default-frame-alist' contains a `reverse' parameter, or
|
||
the X resource ``reverseVideo'' is present, handle that.
|
||
Value is the new frame created."
|
||
(setq parameters (x-handle-named-frame-geometry parameters))
|
||
(let ((visibility-spec (assq 'visibility parameters))
|
||
(frame-list (frame-list))
|
||
(frame (x-create-frame (cons '(visibility . nil) parameters)))
|
||
success)
|
||
(unwind-protect
|
||
(progn
|
||
(x-handle-reverse-video frame parameters)
|
||
(frame-set-background-mode frame)
|
||
(face-set-after-frame-default frame)
|
||
(if (or (null frame-list) (null visibility-spec))
|
||
(make-frame-visible frame)
|
||
(modify-frame-parameters frame (list visibility-spec)))
|
||
(setq success t))
|
||
(unless success
|
||
(delete-frame frame)))
|
||
frame))
|
||
|
||
|
||
(defun face-set-after-frame-default (frame)
|
||
"Set frame-local faces of FRAME from face specs and resources.
|
||
Initialize colors of certain faces from frame parameters."
|
||
(dolist (face (face-list))
|
||
(let ((spec (or (get face 'saved-face)
|
||
(get face 'face-defface-spec))))
|
||
(when spec
|
||
(face-spec-set face spec frame))
|
||
(internal-merge-in-global-face face frame)
|
||
(when (memq window-system '(x w32))
|
||
(make-face-x-resource-internal face frame))))
|
||
|
||
;; Initialize attributes from frame parameters.
|
||
(let ((params '((foreground-color default :foreground)
|
||
(background-color default :background)
|
||
(border-color border :background)
|
||
(cursor-color cursor :background)
|
||
(scroll-bar-foreground scroll-bar :foreground)
|
||
(scroll-bar-background scroll-bar :background)
|
||
(mouse-color mouse :background))))
|
||
(while params
|
||
(let ((param-name (nth 0 (car params)))
|
||
(face (nth 1 (car params)))
|
||
(attr (nth 2 (car params)))
|
||
value)
|
||
(when (setq value (frame-parameter frame param-name))
|
||
(set-face-attribute face frame attr value)))
|
||
(setq params (cdr params)))))
|
||
|
||
|
||
(defun tty-create-frame-with-faces (&optional parameters)
|
||
"Create a frame from optional frame parameters PARAMETERS.
|
||
Parameters not specified by PARAMETERS are taken from
|
||
`default-frame-alist'. If either PARAMETERS or `default-frame-alist'
|
||
contains a `reverse' parameter, handle that. Value is the new frame
|
||
created."
|
||
(let ((frame (make-terminal-frame parameters))
|
||
success)
|
||
(unwind-protect
|
||
(progn
|
||
(frame-set-background-mode frame)
|
||
(face-set-after-frame-default frame)
|
||
(setq success t))
|
||
(unless success
|
||
(delete-frame frame)))
|
||
frame))
|
||
|
||
|
||
;; Called from C function init_display to initialize faces of the
|
||
;; dumped terminal frame on startup.
|
||
|
||
(defun tty-set-up-initial-frame-faces ()
|
||
(let ((frame (selected-frame)))
|
||
(frame-set-background-mode frame)
|
||
(face-set-after-frame-default frame)))
|
||
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Compatiblity with 20.2
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
;; Update a frame's faces when we change its default font.
|
||
|
||
(defun frame-update-faces (frame)
|
||
nil)
|
||
|
||
|
||
;; Update the colors of FACE, after FRAME's own colors have been
|
||
;; changed.
|
||
|
||
(defun frame-update-face-colors (frame)
|
||
(frame-set-background-mode frame))
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Standard faces.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defgroup basic-faces nil
|
||
"The standard faces of Emacs."
|
||
:group 'faces)
|
||
|
||
|
||
(defface default
|
||
'((t nil))
|
||
"Basic default face."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface mode-line
|
||
'((((type x) (class color))
|
||
(:box (:line-width 2 :style released-button) :background "grey75"))
|
||
(t
|
||
(:inverse-video t)))
|
||
"Basic mode line face."
|
||
:version "21.1"
|
||
:group 'basic-faces)
|
||
|
||
;; Make `modeline' an alias for `mode-line', for compatibility.
|
||
(put 'modeline 'face-alias 'mode-line)
|
||
|
||
(defface header-line
|
||
'((((type x) (class color))
|
||
(:box (:line-width 2 :style released-button) :background "grey75"))
|
||
(t
|
||
(:inverse-video t)))
|
||
"Basic header-line face."
|
||
:version "21.1"
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface tool-bar
|
||
'((((type x) (class color))
|
||
(:box (:line-width 1 :style released-button) :background "grey75"))
|
||
(((type x) (class mono))
|
||
(:box (:line-width 1 :style released-button) :background "grey"))
|
||
(t
|
||
()))
|
||
"Basic tool-bar face."
|
||
:version "21.1"
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface region
|
||
'((((type tty) (class color))
|
||
(:background "blue" :foreground "white"))
|
||
(((type tty) (class mono))
|
||
(:inverse-video t))
|
||
(((class color) (background dark))
|
||
(:background "blue"))
|
||
(((class color) (background light))
|
||
(:background "lightblue"))
|
||
(t (:background "gray")))
|
||
"Basic face for highlight the region."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface fringe
|
||
'((((class color))
|
||
(:background "grey95"))
|
||
(t
|
||
(:background "gray")))
|
||
"Basic face for the fringes to the left and right of windows under X."
|
||
:version "21.1"
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface scroll-bar '()
|
||
"Basic face for the scroll bar colors under X."
|
||
:version "21.1"
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface border '()
|
||
"Basic face for the frame border under X."
|
||
:version "21.1"
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface cursor '()
|
||
"Basic face for the cursor color under X."
|
||
:version "21.1"
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface mouse '()
|
||
"Basic face for the mouse color under X."
|
||
:version "21.1"
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface bold '((t (:weight bold)))
|
||
"Basic bold face."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface italic '((t (:slant italic)))
|
||
"Basic italic font."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface bold-italic '((t (:weight bold :slant italic)))
|
||
"Basic bold-italic face."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface underline '((t (:underline t)))
|
||
"Basic underlined face."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface highlight
|
||
'((((type tty) (class color))
|
||
(:background "green"))
|
||
(((class color) (background light))
|
||
(:background "darkseagreen2"))
|
||
(((class color) (background dark))
|
||
(:background "darkolivegreen"))
|
||
(t (:inverse-video t)))
|
||
"Basic face for highlighting."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface secondary-selection
|
||
'((((type tty) (class color))
|
||
(:background "cyan"))
|
||
(((class color) (background light))
|
||
(:background "paleturquoise"))
|
||
(((class color) (background dark))
|
||
(:background "darkslateblue"))
|
||
(t (:inverse-video t)))
|
||
"Basic face for displaying the secondary selection."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface fixed-pitch '((t (:family "courier*")))
|
||
"The basic fixed-pitch face."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface variable-pitch '((t (:family "helv*")))
|
||
"The basic variable-pitch face."
|
||
:group 'basic-faces)
|
||
|
||
|
||
(defface trailing-whitespace
|
||
'((((class color) (background light))
|
||
(:background "red"))
|
||
(((class color) (background dark))
|
||
(:background "red"))
|
||
(t (:inverse-video t)))
|
||
"Basic face for highlighting trailing whitespace."
|
||
:version "21.1"
|
||
:group 'basic-faces)
|
||
|
||
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; Manipulating font names.
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
;; This is here for compatibilty with Emacs 20.2. For example,
|
||
;; international/fontset.el uses these functions to manipulate font
|
||
;; names. The following functions are not used in the face
|
||
;; implementation itself.
|
||
|
||
(defvar x-font-regexp nil)
|
||
(defvar x-font-regexp-head nil)
|
||
(defvar x-font-regexp-weight nil)
|
||
(defvar x-font-regexp-slant nil)
|
||
|
||
(defconst x-font-regexp-weight-subnum 1)
|
||
(defconst x-font-regexp-slant-subnum 2)
|
||
(defconst x-font-regexp-swidth-subnum 3)
|
||
(defconst x-font-regexp-adstyle-subnum 4)
|
||
|
||
;;; Regexps matching font names in "Host Portable Character Representation."
|
||
;;;
|
||
(let ((- "[-?]")
|
||
(foundry "[^-]+")
|
||
(family "[^-]+")
|
||
(weight "\\(bold\\|demibold\\|medium\\)") ; 1
|
||
; (weight\? "\\(\\*\\|bold\\|demibold\\|medium\\|\\)") ; 1
|
||
(weight\? "\\([^-]*\\)") ; 1
|
||
(slant "\\([ior]\\)") ; 2
|
||
; (slant\? "\\([ior?*]?\\)") ; 2
|
||
(slant\? "\\([^-]?\\)") ; 2
|
||
; (swidth "\\(\\*\\|normal\\|semicondensed\\|\\)") ; 3
|
||
(swidth "\\([^-]*\\)") ; 3
|
||
; (adstyle "\\(\\*\\|sans\\|\\)") ; 4
|
||
(adstyle "\\([^-]*\\)") ; 4
|
||
(pixelsize "[0-9]+")
|
||
(pointsize "[0-9][0-9]+")
|
||
(resx "[0-9][0-9]+")
|
||
(resy "[0-9][0-9]+")
|
||
(spacing "[cmp?*]")
|
||
(avgwidth "[0-9]+")
|
||
(registry "[^-]+")
|
||
(encoding "[^-]+")
|
||
)
|
||
(setq x-font-regexp
|
||
(concat "\\`\\*?[-?*]"
|
||
foundry - family - weight\? - slant\? - swidth - adstyle -
|
||
pixelsize - pointsize - resx - resy - spacing - avgwidth -
|
||
registry - encoding "\\*?\\'"
|
||
))
|
||
(setq x-font-regexp-head
|
||
(concat "\\`[-?*]" foundry - family - weight\? - slant\?
|
||
"\\([-*?]\\|\\'\\)"))
|
||
(setq x-font-regexp-slant (concat - slant -))
|
||
(setq x-font-regexp-weight (concat - weight -))
|
||
nil)
|
||
|
||
|
||
(defun x-resolve-font-name (pattern &optional face frame)
|
||
"Return a font name matching PATTERN.
|
||
All wildcards in PATTERN become substantiated.
|
||
If PATTERN is nil, return the name of the frame's base font, which never
|
||
contains wildcards.
|
||
Given optional arguments FACE and FRAME, return a font which is
|
||
also the same size as FACE on FRAME, or fail."
|
||
(or (symbolp face)
|
||
(setq face (face-name face)))
|
||
(and (eq frame t)
|
||
(setq frame nil))
|
||
(if pattern
|
||
;; Note that x-list-fonts has code to handle a face with nil as its font.
|
||
(let ((fonts (x-list-fonts pattern face frame 1)))
|
||
(or fonts
|
||
(if face
|
||
(if (string-match "\\*" pattern)
|
||
(if (null (face-font face))
|
||
(error "No matching fonts are the same height as the frame default font")
|
||
(error "No matching fonts are the same height as face `%s'" face))
|
||
(if (null (face-font face))
|
||
(error "Height of font `%s' doesn't match the frame default font"
|
||
pattern)
|
||
(error "Height of font `%s' doesn't match face `%s'"
|
||
pattern face)))
|
||
(error "No fonts match `%s'" pattern)))
|
||
(car fonts))
|
||
(cdr (assq 'font (frame-parameters (selected-frame))))))
|
||
|
||
|
||
(defun x-frob-font-weight (font which)
|
||
(let ((case-fold-search t))
|
||
(cond ((string-match x-font-regexp font)
|
||
(concat (substring font 0
|
||
(match-beginning x-font-regexp-weight-subnum))
|
||
which
|
||
(substring font (match-end x-font-regexp-weight-subnum)
|
||
(match-beginning x-font-regexp-adstyle-subnum))
|
||
;; Replace the ADD_STYLE_NAME field with *
|
||
;; because the info in it may not be the same
|
||
;; for related fonts.
|
||
"*"
|
||
(substring font (match-end x-font-regexp-adstyle-subnum))))
|
||
((string-match x-font-regexp-head font)
|
||
(concat (substring font 0 (match-beginning 1)) which
|
||
(substring font (match-end 1))))
|
||
((string-match x-font-regexp-weight font)
|
||
(concat (substring font 0 (match-beginning 1)) which
|
||
(substring font (match-end 1)))))))
|
||
|
||
|
||
(defun x-frob-font-slant (font which)
|
||
(let ((case-fold-search t))
|
||
(cond ((string-match x-font-regexp font)
|
||
(concat (substring font 0
|
||
(match-beginning x-font-regexp-slant-subnum))
|
||
which
|
||
(substring font (match-end x-font-regexp-slant-subnum)
|
||
(match-beginning x-font-regexp-adstyle-subnum))
|
||
;; Replace the ADD_STYLE_NAME field with *
|
||
;; because the info in it may not be the same
|
||
;; for related fonts.
|
||
"*"
|
||
(substring font (match-end x-font-regexp-adstyle-subnum))))
|
||
((string-match x-font-regexp-head font)
|
||
(concat (substring font 0 (match-beginning 2)) which
|
||
(substring font (match-end 2))))
|
||
((string-match x-font-regexp-slant font)
|
||
(concat (substring font 0 (match-beginning 1)) which
|
||
(substring font (match-end 1)))))))
|
||
|
||
|
||
(defun x-make-font-bold (font)
|
||
"Given an X font specification, make a bold version of it.
|
||
If that can't be done, return nil."
|
||
(x-frob-font-weight font "bold"))
|
||
|
||
|
||
(defun x-make-font-demibold (font)
|
||
"Given an X font specification, make a demibold version of it.
|
||
If that can't be done, return nil."
|
||
(x-frob-font-weight font "demibold"))
|
||
|
||
|
||
(defun x-make-font-unbold (font)
|
||
"Given an X font specification, make a non-bold version of it.
|
||
If that can't be done, return nil."
|
||
(x-frob-font-weight font "medium"))
|
||
|
||
|
||
(defun x-make-font-italic (font)
|
||
"Given an X font specification, make an italic version of it.
|
||
If that can't be done, return nil."
|
||
(x-frob-font-slant font "i"))
|
||
|
||
|
||
(defun x-make-font-oblique (font) ; you say tomayto...
|
||
"Given an X font specification, make an oblique version of it.
|
||
If that can't be done, return nil."
|
||
(x-frob-font-slant font "o"))
|
||
|
||
|
||
(defun x-make-font-unitalic (font)
|
||
"Given an X font specification, make a non-italic version of it.
|
||
If that can't be done, return nil."
|
||
(x-frob-font-slant font "r"))
|
||
|
||
|
||
(defun x-make-font-bold-italic (font)
|
||
"Given an X font specification, make a bold and italic version of it.
|
||
If that can't be done, return nil."
|
||
(and (setq font (x-make-font-bold font))
|
||
(x-make-font-italic font)))
|
||
|
||
|
||
(provide 'faces)
|
||
|
||
;;; end of faces.el
|