mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-22 10:26:20 +00:00
37d5af8a49
nil.
715 lines
27 KiB
EmacsLisp
715 lines
27 KiB
EmacsLisp
;;; facemenu.el --- create a face menu for interactively adding fonts to text
|
|
|
|
;; Copyright (c) 1994, 1995, 1996 Free Software Foundation, Inc.
|
|
|
|
;; Author: Boris Goldowsky <boris@gnu.org>
|
|
;; Keywords: faces
|
|
|
|
;; 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:
|
|
|
|
;; This file defines a menu of faces (bold, italic, etc) which allows you to
|
|
;; set the face used for a region of the buffer. Some faces also have
|
|
;; keybindings, which are shown in the menu. Faces with names beginning with
|
|
;; "fg:" or "bg:", as in "fg:red", are treated specially.
|
|
;; Such faces are assumed to consist only of a foreground (if "fg:") or
|
|
;; background (if "bg:") color. They are thus put into the color submenus
|
|
;; rather than the general Face submenu. These faces can also be
|
|
;; automatically created by selecting the "Other..." menu items in the
|
|
;; "Foreground" and "Background" submenus.
|
|
;;
|
|
;; The menu also contains submenus for indentation and justification-changing
|
|
;; commands.
|
|
|
|
;;; Usage:
|
|
;; Selecting a face from the menu or typing the keyboard equivalent will
|
|
;; change the region to use that face. If you use transient-mark-mode and the
|
|
;; region is not active, the face will be remembered and used for the next
|
|
;; insertion. It will be forgotten if you move point or make other
|
|
;; modifications before inserting or typing anything.
|
|
;;
|
|
;; Faces can be selected from the keyboard as well.
|
|
;; The standard keybindings are M-g (or ESC g) + letter:
|
|
;; M-g i = "set italic", M-g b = "set bold", etc.
|
|
|
|
;;; Customization:
|
|
;; An alternative set of keybindings that may be easier to type can be set up
|
|
;; using "Alt" or "Hyper" keys. This requires that you either have or create
|
|
;; an Alt or Hyper key on your keyboard. On my keyboard, there is a key
|
|
;; labeled "Alt", but to make it act as an Alt key I have to put this command
|
|
;; into my .xinitrc:
|
|
;; xmodmap -e "add Mod3 = Alt_L"
|
|
;; Or, I can make it into a Hyper key with this:
|
|
;; xmodmap -e "keysym Alt_L = Hyper_L" -e "add Mod2 = Hyper_L"
|
|
;; Check with local X-perts for how to do it on your system.
|
|
;; Then you can define your keybindings with code like this in your .emacs:
|
|
;; (setq facemenu-keybindings
|
|
;; '((default . [?\H-d])
|
|
;; (bold . [?\H-b])
|
|
;; (italic . [?\H-i])
|
|
;; (bold-italic . [?\H-l])
|
|
;; (underline . [?\H-u])))
|
|
;; (facemenu-update)
|
|
;; (setq facemenu-keymap global-map)
|
|
;; (define-key global-map [?\H-c] 'facemenu-set-foreground) ; set fg color
|
|
;; (define-key global-map [?\H-C] 'facemenu-set-background) ; set bg color
|
|
;;
|
|
;; The order of the faces that appear in the menu and their keybindings can be
|
|
;; controlled by setting the variables `facemenu-keybindings' and
|
|
;; `facemenu-new-faces-at-end'. List faces that you don't use in documents
|
|
;; (eg, `region') in `facemenu-unlisted-faces'.
|
|
|
|
;;; Known Problems:
|
|
;; Bold and Italic do not combine to create bold-italic if you select them
|
|
;; both, although most other combinations (eg bold + underline + some color)
|
|
;; do the intuitive thing.
|
|
;;
|
|
;; There is at present no way to display what the faces look like in
|
|
;; the menu itself.
|
|
;;
|
|
;; `list-faces-display' shows the faces in a different order than
|
|
;; this menu, which could be confusing. I do /not/ sort the list
|
|
;; alphabetically, because I like the default order: it puts the most
|
|
;; basic, common fonts first.
|
|
;;
|
|
;; Please send me any other problems, comments or ideas.
|
|
|
|
;;; Code:
|
|
|
|
(provide 'facemenu)
|
|
|
|
;;; Provide some binding for startup:
|
|
;;;###autoload (define-key global-map "\M-g" 'facemenu-keymap)
|
|
;;;###autoload (autoload 'facemenu-keymap "facemenu" "Keymap for face-changing commands." t 'keymap)
|
|
|
|
;; Global bindings:
|
|
(define-key global-map [C-down-mouse-2] 'facemenu-menu)
|
|
(define-key global-map "\M-g" 'facemenu-keymap)
|
|
|
|
(defgroup facemenu nil
|
|
"Create a face menu for interactively adding fonts to text"
|
|
:group 'faces
|
|
:prefix "facemenu-")
|
|
|
|
(defcustom facemenu-keybindings
|
|
'((default . "d")
|
|
(bold . "b")
|
|
(italic . "i")
|
|
(bold-italic . "l") ; {bold} intersect {italic} = {l}
|
|
(underline . "u"))
|
|
"Alist of interesting faces and keybindings.
|
|
Each element is itself a list: the car is the name of the face,
|
|
the next element is the key to use as a keyboard equivalent of the menu item;
|
|
the binding is made in `facemenu-keymap'.
|
|
|
|
The faces specifically mentioned in this list are put at the top of
|
|
the menu, in the order specified. All other faces which are defined,
|
|
except for those in `facemenu-unlisted-faces', are listed after them,
|
|
but get no keyboard equivalents.
|
|
|
|
If you change this variable after loading facemenu.el, you will need to call
|
|
`facemenu-update' to make it take effect."
|
|
:type '(repeat (cons face string))
|
|
:group 'facemenu)
|
|
|
|
(defcustom facemenu-new-faces-at-end t
|
|
"*Where in the menu to insert newly-created faces.
|
|
This should be nil to put them at the top of the menu, or t to put them
|
|
just before \"Other\" at the end."
|
|
:type 'boolean
|
|
:group 'facemenu)
|
|
|
|
(defcustom facemenu-unlisted-faces
|
|
'(modeline region secondary-selection highlight scratch-face
|
|
(purecopy "^font-lock-") (purecopy "^gnus-") (purecopy "^message-")
|
|
(purecopy "^ediff-") (purecopy "^term-") (purecopy "^vc-")
|
|
(purecopy "^widget-") (purecopy "^custom-") (purecopy "^vm-"))
|
|
"*List of faces not to include in the Face menu.
|
|
Each element may be either a symbol, which is the name of a face, or a string,
|
|
which is a regular expression to be matched against face names. Matching
|
|
faces will not be added to the menu.
|
|
|
|
You can set this list before loading facemenu.el, or add a face to it before
|
|
creating that face if you do not want it to be listed. If you change the
|
|
variable so as to eliminate faces that have already been added to the menu,
|
|
call `facemenu-update' to recalculate the menu contents.
|
|
|
|
If this variable is t, no faces will be added to the menu. This is useful for
|
|
temporarily turning off the feature that automatically adds faces to the menu
|
|
when they are created."
|
|
:type '(choice (const :tag "Don't add" t)
|
|
(const :tag "None" nil)
|
|
(repeat (choice symbol regexp)))
|
|
:group 'facemenu)
|
|
|
|
;;;###autoload
|
|
(defvar facemenu-face-menu
|
|
(let ((map (make-sparse-keymap "Face")))
|
|
(define-key map "o" (cons "Other..." 'facemenu-set-face))
|
|
map)
|
|
"Menu keymap for faces.")
|
|
;;;###autoload
|
|
(defalias 'facemenu-face-menu facemenu-face-menu)
|
|
|
|
;;;###autoload
|
|
(defvar facemenu-foreground-menu
|
|
(let ((map (make-sparse-keymap "Foreground Color")))
|
|
(define-key map "o" (cons "Other..." 'facemenu-set-foreground))
|
|
map)
|
|
"Menu keymap for foreground colors.")
|
|
;;;###autoload
|
|
(defalias 'facemenu-foreground-menu facemenu-foreground-menu)
|
|
|
|
;;;###autoload
|
|
(defvar facemenu-background-menu
|
|
(let ((map (make-sparse-keymap "Background Color")))
|
|
(define-key map "o" (cons "Other..." 'facemenu-set-background))
|
|
map)
|
|
"Menu keymap for background colors")
|
|
;;;###autoload
|
|
(defalias 'facemenu-background-menu facemenu-background-menu)
|
|
|
|
;;;###autoload
|
|
(defvar facemenu-special-menu
|
|
(let ((map (make-sparse-keymap "Special")))
|
|
(define-key map [?s] (cons (purecopy "Remove Special")
|
|
'facemenu-remove-special))
|
|
(define-key map [?t] (cons (purecopy "Intangible")
|
|
'facemenu-set-intangible))
|
|
(define-key map [?v] (cons (purecopy "Invisible")
|
|
'facemenu-set-invisible))
|
|
(define-key map [?r] (cons (purecopy "Read-Only")
|
|
'facemenu-set-read-only))
|
|
map)
|
|
"Menu keymap for non-face text-properties.")
|
|
;;;###autoload
|
|
(defalias 'facemenu-special-menu facemenu-special-menu)
|
|
|
|
;;;###autoload
|
|
(defvar facemenu-justification-menu
|
|
(let ((map (make-sparse-keymap "Justification")))
|
|
(define-key map [?c] (cons (purecopy "Center") 'set-justification-center))
|
|
(define-key map [?b] (cons (purecopy "Full") 'set-justification-full))
|
|
(define-key map [?r] (cons (purecopy "Right") 'set-justification-right))
|
|
(define-key map [?l] (cons (purecopy "Left") 'set-justification-left))
|
|
(define-key map [?u] (cons (purecopy "Unfilled") 'set-justification-none))
|
|
map)
|
|
"Submenu for text justification commands.")
|
|
;;;###autoload
|
|
(defalias 'facemenu-justification-menu facemenu-justification-menu)
|
|
|
|
;;;###autoload
|
|
(defvar facemenu-indentation-menu
|
|
(let ((map (make-sparse-keymap "Indentation")))
|
|
(define-key map [decrease-right-margin]
|
|
(cons (purecopy "Indent Right Less") 'decrease-right-margin))
|
|
(define-key map [increase-right-margin]
|
|
(cons (purecopy "Indent Right More") 'increase-right-margin))
|
|
(define-key map [decrease-left-margin]
|
|
(cons (purecopy "Indent Less") 'decrease-left-margin))
|
|
(define-key map [increase-left-margin]
|
|
(cons (purecopy "Indent More") 'increase-left-margin))
|
|
map)
|
|
"Submenu for indentation commands.")
|
|
;;;###autoload
|
|
(defalias 'facemenu-indentation-menu facemenu-indentation-menu)
|
|
|
|
;; This is split up to avoid an overlong line in loaddefs.el.
|
|
;;;###autoload
|
|
(defvar facemenu-menu nil
|
|
"Facemenu top-level menu keymap.")
|
|
;;;###autoload
|
|
(setq facemenu-menu (make-sparse-keymap "Text Properties"))
|
|
;;;###autoload
|
|
(let ((map facemenu-menu))
|
|
(define-key map [dc] (cons (purecopy "Display Colors") 'list-colors-display))
|
|
(define-key map [df] (cons (purecopy "Display Faces") 'list-faces-display))
|
|
(define-key map [dp] (cons (purecopy "List Properties")
|
|
'list-text-properties-at))
|
|
(define-key map [ra] (cons (purecopy "Remove Text Properties")
|
|
'facemenu-remove-all))
|
|
(define-key map [rm] (cons (purecopy "Remove Face Properties")
|
|
'facemenu-remove-face-props))
|
|
(define-key map [s1] (list (purecopy "--"))))
|
|
;;;###autoload
|
|
(let ((map facemenu-menu))
|
|
(define-key map [in] (cons (purecopy "Indentation")
|
|
'facemenu-indentation-menu))
|
|
(define-key map [ju] (cons (purecopy "Justification")
|
|
'facemenu-justification-menu))
|
|
(define-key map [s2] (list (purecopy "--")))
|
|
(define-key map [sp] (cons (purecopy "Special Properties")
|
|
'facemenu-special-menu))
|
|
(define-key map [bg] (cons (purecopy "Background Color")
|
|
'facemenu-background-menu))
|
|
(define-key map [fg] (cons (purecopy "Foreground Color")
|
|
'facemenu-foreground-menu))
|
|
(define-key map [fc] (cons (purecopy "Face")
|
|
'facemenu-face-menu)))
|
|
;;;###autoload
|
|
(defalias 'facemenu-menu facemenu-menu)
|
|
|
|
(defvar facemenu-keymap
|
|
(let ((map (make-sparse-keymap "Set face")))
|
|
(define-key map "o" (cons (purecopy "Other...") 'facemenu-set-face))
|
|
map)
|
|
"Keymap for face-changing commands.
|
|
`Facemenu-update' fills in the keymap according to the bindings
|
|
requested in `facemenu-keybindings'.")
|
|
(defalias 'facemenu-keymap facemenu-keymap)
|
|
|
|
|
|
(defcustom facemenu-add-face-function nil
|
|
"Function called at beginning of text to change or `nil'.
|
|
This function is passed the FACE to set and END of text to change, and must
|
|
return a string which is inserted. It may set `facemenu-end-add-face'."
|
|
:type '(choice (const :tag "None" nil)
|
|
function)
|
|
:group 'facemenu)
|
|
|
|
(defcustom facemenu-end-add-face nil
|
|
"String to insert or function called at end of text to change or `nil'.
|
|
This function is passed the FACE to set, and must return a string which is
|
|
inserted."
|
|
:type '(choice (const :tag "None" nil)
|
|
string
|
|
function)
|
|
:group 'facemenu)
|
|
|
|
(defcustom facemenu-remove-face-function nil
|
|
"When non-nil, this is a function called to remove faces.
|
|
This function is passed the START and END of text to change.
|
|
May also be `t' meaning to use `facemenu-add-face-function'."
|
|
:type '(choice (const :tag "None" nil)
|
|
(const :tag "Use add-face" t)
|
|
function)
|
|
:group 'facemenu)
|
|
|
|
;;; Internal Variables
|
|
|
|
(defvar facemenu-color-alist nil
|
|
;; Don't initialize here; that doesn't work if preloaded.
|
|
"Alist of colors, used for completion.
|
|
If null, `facemenu-read-color' will set it.")
|
|
|
|
(defun facemenu-update ()
|
|
"Add or update the \"Face\" menu in the menu bar.
|
|
You can call this to update things if you change any of the menu configuration
|
|
variables."
|
|
(interactive)
|
|
|
|
;; Add each defined face to the menu.
|
|
(facemenu-iterate 'facemenu-add-new-face
|
|
(facemenu-complete-face-list facemenu-keybindings)))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-set-face (face &optional start end)
|
|
"Add FACE to the region or next character typed.
|
|
It will be added to the top of the face list; any faces lower on the list that
|
|
will not show through at all will be removed.
|
|
|
|
Interactively, the face to be used is read with the minibuffer.
|
|
|
|
If the region is active and there is no prefix argument,
|
|
this command sets the region to the requested face.
|
|
|
|
Otherwise, this command specifies the face for the next character
|
|
inserted. Moving point or switching buffers before
|
|
typing a character to insert cancels the specification."
|
|
(interactive (list (read-face-name "Use face ")))
|
|
(barf-if-buffer-read-only)
|
|
(facemenu-add-new-face face)
|
|
(if (and mark-active (not current-prefix-arg))
|
|
(let ((start (or start (region-beginning)))
|
|
(end (or end (region-end))))
|
|
(facemenu-add-face face start end))
|
|
(facemenu-add-face face)))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-set-foreground (color &optional start end)
|
|
"Set the foreground color of the region or next character typed.
|
|
The color is prompted for. A face named `fg:color' is used \(or created).
|
|
If the region is active, it will be set to the requested face. If
|
|
it is inactive \(even if mark-even-if-inactive is set) the next
|
|
character that is typed \(via `self-insert-command') will be set to
|
|
the selected face. Moving point or switching buffers before
|
|
typing a character cancels the request."
|
|
(interactive (list (facemenu-read-color "Foreground color: ")))
|
|
(let ((face (intern (concat "fg:" color))))
|
|
(or (facemenu-get-face face)
|
|
(error "Unknown color: %s" color))
|
|
(facemenu-set-face face start end)))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-set-background (color &optional start end)
|
|
"Set the background color of the region or next character typed.
|
|
The color is prompted for. A face named `bg:color' is used \(or created).
|
|
If the region is active, it will be set to the requested face. If
|
|
it is inactive \(even if mark-even-if-inactive is set) the next
|
|
character that is typed \(via `self-insert-command') will be set to
|
|
the selected face. Moving point or switching buffers before
|
|
typing a character cancels the request."
|
|
(interactive (list (facemenu-read-color "Background color: ")))
|
|
(let ((face (intern (concat "bg:" color))))
|
|
(or (facemenu-get-face face)
|
|
(error "Unknown color: %s" color))
|
|
(facemenu-set-face face start end)))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-set-face-from-menu (face start end)
|
|
"Set the face of the region or next character typed.
|
|
This function is designed to be called from a menu; the face to use
|
|
is the menu item's name.
|
|
|
|
If the region is active and there is no prefix argument,
|
|
this command sets the region to the requested face.
|
|
|
|
Otherwise, this command specifies the face for the next character
|
|
inserted. Moving point or switching buffers before
|
|
typing a character to insert cancels the specification."
|
|
(interactive (list last-command-event
|
|
(if (and mark-active (not current-prefix-arg))
|
|
(region-beginning))
|
|
(if (and mark-active (not current-prefix-arg))
|
|
(region-end))))
|
|
(barf-if-buffer-read-only)
|
|
(facemenu-get-face face)
|
|
(if start
|
|
(facemenu-add-face face start end)
|
|
(facemenu-add-face face)))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-set-invisible (start end)
|
|
"Make the region invisible.
|
|
This sets the `invisible' text property; it can be undone with
|
|
`facemenu-remove-special'."
|
|
(interactive "r")
|
|
(add-text-properties start end '(invisible t)))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-set-intangible (start end)
|
|
"Make the region intangible: disallow moving into it.
|
|
This sets the `intangible' text property; it can be undone with
|
|
`facemenu-remove-special'."
|
|
(interactive "r")
|
|
(add-text-properties start end '(intangible t)))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-set-read-only (start end)
|
|
"Make the region unmodifiable.
|
|
This sets the `read-only' text property; it can be undone with
|
|
`facemenu-remove-special'."
|
|
(interactive "r")
|
|
(add-text-properties start end '(read-only t)))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-remove-face-props (start end)
|
|
"Remove `face' and `mouse-face' text properties."
|
|
(interactive "*r") ; error if buffer is read-only despite the next line.
|
|
(let ((inhibit-read-only t))
|
|
(remove-text-properties
|
|
start end '(face nil mouse-face nil))))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-remove-all (start end)
|
|
"Remove all text properties from the region."
|
|
(interactive "*r") ; error if buffer is read-only despite the next line.
|
|
(let ((inhibit-read-only t))
|
|
(set-text-properties start end nil)))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-remove-special (start end)
|
|
"Remove all the \"special\" text properties from the region.
|
|
These special properties include `invisible', `intangible' and `read-only'."
|
|
(interactive "*r") ; error if buffer is read-only despite the next line.
|
|
(let ((inhibit-read-only t))
|
|
(remove-text-properties
|
|
start end '(invisible nil intangible nil read-only nil))))
|
|
|
|
;;;###autoload
|
|
(defun list-text-properties-at (p)
|
|
"Pop up a buffer listing text-properties at LOCATION."
|
|
(interactive "d")
|
|
(let ((props (text-properties-at p))
|
|
category
|
|
str)
|
|
(if (null props)
|
|
(message "None")
|
|
(if (and (not (cdr (cdr props)))
|
|
(not (eq (car props) 'category))
|
|
(< (length (setq str (format "Text property at %d: %s %S"
|
|
p (car props) (car (cdr props)))))
|
|
(frame-width)))
|
|
(message "%s" str)
|
|
(with-output-to-temp-buffer "*Text Properties*"
|
|
(princ (format "Text properties at %d:\n\n" p))
|
|
(setq help-xref-stack nil)
|
|
(while props
|
|
(if (eq (car props) 'category)
|
|
(setq category (car (cdr props))))
|
|
(princ (format "%-20s %S\n"
|
|
(car props) (car (cdr props))))
|
|
(setq props (cdr (cdr props))))
|
|
(if category
|
|
(progn
|
|
(setq props (symbol-plist category))
|
|
(princ (format "\nCategory %s:\n\n" category))
|
|
(while props
|
|
(princ (format "%-20s %S\n"
|
|
(car props) (car (cdr props))))
|
|
(if (eq (car props) 'category)
|
|
(setq category (car (cdr props))))
|
|
(setq props (cdr (cdr props)))))))))))
|
|
|
|
;;;###autoload
|
|
(defun facemenu-read-color (&optional prompt)
|
|
"Read a color using the minibuffer."
|
|
(let ((col (completing-read (or prompt "Color: ")
|
|
(or facemenu-color-alist
|
|
(mapcar 'list (defined-colors)))
|
|
nil t)))
|
|
(if (equal "" col)
|
|
nil
|
|
col)))
|
|
|
|
;;;###autoload
|
|
(defun list-colors-display (&optional list)
|
|
"Display names of defined colors, and show what they look like.
|
|
If the optional argument LIST is non-nil, it should be a list of
|
|
colors to display. Otherwise, this command computes a list
|
|
of colors that the current display can handle."
|
|
(interactive)
|
|
(when (null list)
|
|
(setq list (defined-colors))
|
|
;; Delete duplicate colors.
|
|
(let ((l list))
|
|
(while (cdr l)
|
|
(if (facemenu-color-equal (car l) (car (cdr l)))
|
|
(setcdr l (cdr (cdr l)))
|
|
(setq l (cdr l))))))
|
|
(with-output-to-temp-buffer "*Colors*"
|
|
(save-excursion
|
|
(set-buffer standard-output)
|
|
(let (s)
|
|
(while list
|
|
(setq s (point))
|
|
(insert (car list))
|
|
(indent-to 20)
|
|
(put-text-property s (point) 'face
|
|
(cons 'background-color (car list)))
|
|
(setq s (point))
|
|
(insert " " (car list) "\n")
|
|
(put-text-property s (point) 'face
|
|
(cons 'foreground-color (car list)))
|
|
(setq list (cdr list)))))))
|
|
|
|
(defun facemenu-color-equal (a b)
|
|
"Return t if colors A and B are the same color.
|
|
A and B should be strings naming colors.
|
|
This function queries the display system to find out what the color
|
|
names mean. It returns nil if the colors differ or if it can't
|
|
determine the correct answer."
|
|
(cond ((equal a b) t)
|
|
((equal (color-values a) (color-values b)))))
|
|
|
|
(defun facemenu-add-face (face &optional start end)
|
|
"Add FACE to text between START and END.
|
|
If START is `nil' or START to END is empty, add FACE to next typed character
|
|
instead. For each section of that region that has a different face property,
|
|
FACE will be consed onto it, and other faces that are completely hidden by
|
|
that will be removed from the list.
|
|
If `facemenu-add-face-function' and maybe `facemenu-end-add-face' are non-`nil'
|
|
they are used to set the face information.
|
|
|
|
As a special case, if FACE is `default', then the region is left with NO face
|
|
text property. Otherwise, selecting the default face would not have any
|
|
effect. See `facemenu-remove-face-function'."
|
|
(interactive "*xFace: \nr")
|
|
(if (and (eq face 'default)
|
|
(not (eq facemenu-remove-face-function t)))
|
|
(if facemenu-remove-face-function
|
|
(funcall facemenu-remove-face-function start end)
|
|
(if (and start (< start end))
|
|
(remove-text-properties start end '(face default))
|
|
(setq self-insert-face 'default
|
|
self-insert-face-command this-command)))
|
|
(if facemenu-add-face-function
|
|
(save-excursion
|
|
(if end (goto-char end))
|
|
(save-excursion
|
|
(if start (goto-char start))
|
|
(insert-before-markers
|
|
(funcall facemenu-add-face-function face end)))
|
|
(if facemenu-end-add-face
|
|
(insert (if (stringp facemenu-end-add-face)
|
|
facemenu-end-add-face
|
|
(funcall facemenu-end-add-face face)))))
|
|
(if (and start (< start end))
|
|
(let ((part-start start) part-end)
|
|
(while (not (= part-start end))
|
|
(setq part-end (next-single-property-change part-start 'face
|
|
nil end))
|
|
(let ((prev (get-text-property part-start 'face)))
|
|
(put-text-property part-start part-end 'face
|
|
(if (null prev)
|
|
face
|
|
(facemenu-active-faces
|
|
(cons face
|
|
(if (listp prev)
|
|
prev
|
|
(list prev)))))))
|
|
(setq part-start part-end)))
|
|
(setq self-insert-face (if (eq last-command self-insert-face-command)
|
|
(cons face (if (listp self-insert-face)
|
|
self-insert-face
|
|
(list self-insert-face)))
|
|
face)
|
|
self-insert-face-command this-command)))))
|
|
|
|
(defun facemenu-active-faces (face-list &optional frame)
|
|
"Return from FACE-LIST those faces that would be used for display.
|
|
This means each face attribute is not specified in a face earlier in FACE-LIST
|
|
and such a face is therefore active when used to display text.
|
|
If the optional argument FRAME is given, use the faces in that frame; otherwise
|
|
use the selected frame. If t, then the global, non-frame faces are used."
|
|
(let* ((mask-atts (copy-sequence (internal-get-face (car face-list) frame)))
|
|
(active-list (list (car face-list)))
|
|
(face-list (cdr face-list))
|
|
(mask-len (length mask-atts)))
|
|
(while face-list
|
|
(if (let ((face-atts (internal-get-face (car face-list) frame))
|
|
(i mask-len) (useful nil))
|
|
(while (> (setq i (1- i)) 1)
|
|
(and (aref face-atts i) (not (aref mask-atts i))
|
|
(aset mask-atts i (setq useful t))))
|
|
useful)
|
|
(setq active-list (cons (car face-list) active-list)))
|
|
(setq face-list (cdr face-list)))
|
|
(nreverse active-list)))
|
|
|
|
(defun facemenu-get-face (symbol)
|
|
"Make sure FACE exists.
|
|
If not, create it and add it to the appropriate menu. Return the symbol.
|
|
|
|
If a window system is in use, and this function creates a face named
|
|
`fg:color', then it sets the foreground to that color. Likewise, `bg:color'
|
|
means to set the background. In either case, if the color is undefined,
|
|
no color is set and a warning is issued."
|
|
(let ((name (symbol-name symbol))
|
|
foreground)
|
|
(cond ((internal-find-face symbol))
|
|
((and window-system
|
|
(or (setq foreground (string-match "^fg:" name))
|
|
(string-match "^bg:" name)))
|
|
(let ((face (make-face symbol))
|
|
(color (substring name 3)))
|
|
(if (x-color-defined-p color)
|
|
(if foreground
|
|
(set-face-foreground face color)
|
|
(set-face-background face color))
|
|
(message "Color \"%s\" undefined" color))))
|
|
(t (make-face symbol))))
|
|
symbol)
|
|
|
|
(defun facemenu-add-new-face (face)
|
|
"Add a FACE to the appropriate Face menu.
|
|
Automatically called when a new face is created."
|
|
(let* ((name (symbol-name face))
|
|
menu docstring
|
|
(key (cdr (assoc face facemenu-keybindings)))
|
|
function menu-val)
|
|
(cond ((string-match "^fg:" name)
|
|
(setq name (substring name 3))
|
|
(setq docstring
|
|
(format "Select foreground color %s for subsequent insertion."
|
|
name))
|
|
(setq menu 'facemenu-foreground-menu))
|
|
((string-match "^bg:" name)
|
|
(setq name (substring name 3))
|
|
(setq docstring
|
|
(format "Select background color %s for subsequent insertion."
|
|
name))
|
|
(setq menu 'facemenu-background-menu))
|
|
(t
|
|
(setq docstring
|
|
(format "Select face `%s' for subsequent insertion."
|
|
name))
|
|
(setq menu 'facemenu-face-menu)))
|
|
(cond ((eq t facemenu-unlisted-faces))
|
|
((memq face facemenu-unlisted-faces))
|
|
;; test against regexps in facemenu-unlisted-faces
|
|
((let ((unlisted facemenu-unlisted-faces)
|
|
(matched nil))
|
|
(while (and unlisted (not matched))
|
|
(if (and (stringp (car unlisted))
|
|
(string-match (car unlisted) name))
|
|
(setq matched t)
|
|
(setq unlisted (cdr unlisted))))
|
|
matched))
|
|
(key ; has a keyboard equivalent. These go at the front.
|
|
(setq function (intern (concat "facemenu-set-" name)))
|
|
(fset function
|
|
`(lambda ()
|
|
,docstring
|
|
(interactive)
|
|
(facemenu-set-face (quote ,face))))
|
|
(define-key 'facemenu-keymap key (cons name function))
|
|
(define-key menu key (cons name function)))
|
|
((facemenu-iterate ; check if equivalent face is already in the menu
|
|
(lambda (m) (and (listp m)
|
|
(symbolp (car m))
|
|
(face-equal (car m) face)))
|
|
(cdr (symbol-function menu))))
|
|
(t ; No keyboard equivalent. Figure out where to put it:
|
|
(setq key (vector face)
|
|
function 'facemenu-set-face-from-menu
|
|
menu-val (symbol-function menu))
|
|
(if (and facemenu-new-faces-at-end
|
|
(> (length menu-val) 3))
|
|
(define-key-after menu-val key (cons name function)
|
|
(car (nth (- (length menu-val) 3) menu-val)))
|
|
(define-key menu key (cons name function))))))
|
|
nil) ; Return nil for facemenu-iterate
|
|
|
|
(defun facemenu-complete-face-list (&optional oldlist)
|
|
"Return list of all faces that look different.
|
|
Starts with given ALIST of faces, and adds elements only if they display
|
|
differently from any face already on the list.
|
|
The faces on ALIST will end up at the end of the returned list, in reverse
|
|
order."
|
|
(let ((list (nreverse (mapcar 'car oldlist))))
|
|
(facemenu-iterate
|
|
(lambda (new-face)
|
|
(if (not (memq new-face list))
|
|
(setq list (cons new-face list)))
|
|
nil)
|
|
(nreverse (face-list)))
|
|
list))
|
|
|
|
(defun facemenu-iterate (func iterate-list)
|
|
"Apply FUNC to each element of LIST until one returns non-nil.
|
|
Returns the non-nil value it found, or nil if all were nil."
|
|
(while (and iterate-list (not (funcall func (car iterate-list))))
|
|
(setq iterate-list (cdr iterate-list)))
|
|
(car iterate-list))
|
|
|
|
(facemenu-update)
|
|
|
|
;;; facemenu.el ends here
|