-;;; facemenu.el -- Create a face menu for interactively adding fonts to text
-;; Copyright (c) 1994 Free Software Foundation, Inc.
+;;; facemenu.el --- create a face menu for interactively adding fonts to text
-;; Author: Boris Goldowsky <boris@cs.rochester.edu>
+;; Copyright (c) 1994, 1995, 1996, 2001, 2002 Free Software Foundation, Inc.
+
+;; Author: Boris Goldowsky <boris@gnu.org>
;; Keywords: faces
;; This file is part of GNU Emacs.
;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; 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.
+;; keybindings, which are shown in the menu.
;;
;; The menu also contains submenus for indentation and justification-changing
;; commands.
;; 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.
+;; 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.
;; (italic . [?\H-i])
;; (bold-italic . [?\H-l])
;; (underline . [?\H-u])))
+;; (facemenu-update)
;; (setq facemenu-keymap global-map)
-;; (setq facemenu-key nil)
;; (define-key global-map [?\H-c] 'facemenu-set-foreground) ; set fg color
;; (define-key global-map [?\H-C] 'facemenu-set-background) ; set bg color
-;; (require 'facemenu)
;;
;; The order of the faces that appear in the menu and their keybindings can be
;; controlled by setting the variables `facemenu-keybindings' and
;;; Code:
-(provide 'facemenu)
+(eval-when-compile
+ (require 'help)
+ (require 'button))
+
+;;; 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)
-(defvar facemenu-key "\M-g"
- "Prefix to use for facemenu commands.")
+;; Global bindings:
+(define-key global-map [C-down-mouse-2] 'facemenu-menu)
+(define-key global-map "\M-g" 'facemenu-keymap)
-(defvar facemenu-keybindings
+(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.
+ "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 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,
+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.")
+`facemenu-update' to make it take effect."
+ :type '(repeat (cons face string))
+ :group 'facemenu)
-(defvar facemenu-new-faces-at-end t
- "Where in the menu to insert newly-created faces.
+(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.")
-
-(defvar facemenu-unlisted-faces
- '(modeline region secondary-selection highlight scratch-face)
- "List of faces not to include in the Face menu.
-Set this before loading facemenu.el, or call `facemenu-update' after
-changing it.
+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.")
+when they are created."
+ :type '(choice (const :tag "Don't add faces" t)
+ (const :tag "None (do add any face)" 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)
-(defvar facemenu-foreground-menu
+;;;###autoload
+(defvar facemenu-foreground-menu
(let ((map (make-sparse-keymap "Foreground Color")))
- (define-key map "o" (cons "Other" 'facemenu-set-foreground))
+ (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))
+ (define-key map "o" (cons "Other..." 'facemenu-set-background))
map)
- "Menu keymap for background colors")
+ "Menu keymap for background colors.")
+;;;###autoload
(defalias 'facemenu-background-menu facemenu-background-menu)
-(defvar facemenu-special-menu
+;;;###autoload
+(defvar facemenu-special-menu
(let ((map (make-sparse-keymap "Special")))
- (define-key map [read-only] (cons "Read-Only" 'facemenu-set-read-only))
- (define-key map [invisible] (cons "Invisible" 'facemenu-set-invisible))
+ (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 "Center" 'set-justification-center))
- (define-key map [?b] (cons "Full" 'set-justification-full))
- (define-key map [?r] (cons "Right" 'set-justification-right))
- (define-key map [?l] (cons "Left" 'set-justification-left))
- (define-key map [?u] (cons "Unfilled" 'set-nofill))
+ (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 [UnIndentRight]
- (cons "UnIndentRight" 'decrease-right-margin))
- (define-key map [IndentRight]
- (cons "IndentRight" 'increase-right-margin))
- (define-key map [Unindent]
- (cons "UnIndent" 'decrease-left-margin))
- (define-key map [Indent]
- (cons "Indent" 'increase-left-margin))
+ (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)
-(defvar facemenu-menu
- (let ((map (make-sparse-keymap "Face")))
- (define-key map [dc] (cons "Display Colors" 'list-colors-display))
- (define-key map [df] (cons "Display Faces" 'list-faces-display))
- (define-key map [rm] (cons "Remove Props" 'facemenu-remove-all))
- (define-key map [s1] (list "-----------------"))
- (define-key map [in] (cons "Indentation" 'facemenu-indentation-menu))
- (define-key map [ju] (cons "Justification" 'facemenu-justification-menu))
- (define-key map [s2] (list "-----------------"))
- (define-key map [sp] (cons "Special Props" 'facemenu-special-menu))
- (define-key map [bg] (cons "Background Color" 'facemenu-background-menu))
- (define-key map [fg] (cons "Foreground Color" 'facemenu-foreground-menu))
- (define-key map [fc] (cons "Face" 'facemenu-face-menu))
- map)
+;; 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 "Describe Properties")
+ 'describe-text-properties))
+ (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
+(defvar facemenu-keymap
(let ((map (make-sparse-keymap "Set face")))
- (define-key map "o" (cons "Other" 'facemenu-set-face))
+ (define-key map "o" (cons (purecopy "Other...") 'facemenu-set-face))
map)
- "Map for keyboard face-changing commands.
+ "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
"Alist of colors, used for completion.
If null, `facemenu-read-color' will set it.")
-(defvar facemenu-loc nil)
-
(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)
-
- ;; Global bindings:
- (define-key global-map [C-down-mouse-2] 'facemenu-menu)
- (if facemenu-key (define-key global-map facemenu-key 'facemenu-keymap))
;; Add each defined face to the menu.
(facemenu-iterate 'facemenu-add-new-face
;;;###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
+This adds FACE 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 prompted for.
-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 \(or otherwise inserted) will be set to
-the the selected face. Moving point or switching buffers before
-typing a character cancels the request."
- (interactive (list (read-face-name "Use face: ")))
- (barf-if-buffer-read-only)
+Interactively, reads the face name with the minibuffer.
+
+If the region is active (normally true except in Transient Mark mode)
+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 (progn
+ (barf-if-buffer-read-only)
+ (read-face-name "Use face"))
+ (if (and mark-active (not current-prefix-arg))
+ (region-beginning))
+ (if (and mark-active (not current-prefix-arg))
+ (region-end))))
(facemenu-add-new-face face)
- (if mark-active
- (let ((start (or start (region-beginning)))
- (end (or end (region-end))))
- (facemenu-add-face face start end))
- (facemenu-self-insert-face face)))
+ (facemenu-add-face face start end))
;;;###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 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)))
+ "Set the foreground COLOR of the region or next character typed.
+This command reads the color in the minibuffer.
+
+If the region is active (normally true except in Transient Mark mode)
+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 (progn
+ (barf-if-buffer-read-only)
+ (facemenu-read-color "Foreground color: "))
+ (if (and mark-active (not current-prefix-arg))
+ (region-beginning))
+ (if (and mark-active (not current-prefix-arg))
+ (region-end))))
+ (unless (color-defined-p color)
+ (message "Color `%s' undefined" color))
+ (facemenu-add-new-color color 'facemenu-foreground-menu)
+ (facemenu-add-face (list (list :foreground color)) 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 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)))
+ "Set the background COLOR of the region or next character typed.
+This command reads the color in the minibuffer.
+
+If the region is active (normally true except in Transient Mark mode)
+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 (progn
+ (barf-if-buffer-read-only)
+ (facemenu-read-color "Background color: "))
+ (if (and mark-active (not current-prefix-arg))
+ (region-beginning))
+ (if (and mark-active (not current-prefix-arg))
+ (region-end))))
+ (unless (color-defined-p color)
+ (message "Color `%s' undefined" color))
+ (facemenu-add-new-color color 'facemenu-background-menu)
+ (facemenu-add-face (list (list :background color)) start end))
+;;;###autoload
(defun facemenu-set-face-from-menu (face start end)
- "Set the face of the region or next character typed.
+ "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, 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 \(or otherwise inserted) will be set to
-the the selected face. Moving point or switching buffers before
-typing a character cancels the request."
+
+If the region is active (normally true except in Transient Mark mode)
+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 mark-active (region-beginning))
- (if mark-active (region-end))))
+ (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
+ (if start
(facemenu-add-face face start end)
- (facemenu-self-insert-face face)))
-
-(defun facemenu-self-insert-face (face)
- (setq self-insert-face face
- self-insert-face-command this-command))
+ (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-all'."
+`facemenu-remove-special'."
(interactive "r")
- (put-text-property start end 'invisible t))
+ (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-all'."
+`facemenu-remove-special'."
(interactive "r")
- (put-text-property start end 'intangible t))
+ (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-all'."
+`facemenu-remove-special'."
(interactive "r")
- (put-text-property start end 'read-only t))
+ (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 that facemenu added to region."
+ "Remove all text properties from the region."
(interactive "*r") ; error if buffer is read-only despite the next line.
(let ((inhibit-read-only t))
- (remove-text-properties
- start end '(face nil invisible nil intangible nil
- read-only nil category nil))))
+ (set-text-properties start end nil)))
;;;###autoload
-(defun facemenu-read-color (prompt)
+(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))))
+\f
+;;;###autoload
+(defun facemenu-read-color (&optional prompt)
"Read a color using the minibuffer."
- (let ((col (completing-read (or "Color: ")
+ (let ((col (completing-read (or prompt "Color: ")
(or facemenu-color-alist
- (if (eq 'x window-system)
- (mapcar 'list (x-defined-colors))))
+ (defined-colors))
nil t)))
(if (equal "" col)
nil
;;;###autoload
(defun list-colors-display (&optional list)
- "Display colors.
-You can optionally supply a LIST of colors to display, or this function will
-get a list for the current display, removing alternate names for the same
-color."
+ "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)
- (if (and (null list) (eq 'x window-system))
- (let ((l (setq list (x-defined-colors))))
- (while (cdr l)
- (if (facemenu-color-equal (car l) (car (cdr l)))
- (setcdr l (cdr (cdr l)))
- (setq l (cdr l))))))
+ (when (and (null list) (> (display-color-cells) 0))
+ (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)))))
+ (when (memq (display-visual-class) '(gray-scale pseudo-color direct-color))
+ ;; Don't show more than what the display can handle.
+ (let ((lc (nthcdr (1- (display-color-cells)) list)))
+ (if lc
+ (setcdr lc nil)))))
(with-output-to-temp-buffer "*Colors*"
(save-excursion
(set-buffer standard-output)
- (let ((facemenu-unlisted-faces t)
- s)
+ (let (s)
(while list
(setq s (point))
(insert (car list))
(indent-to 20)
- (put-text-property s (point) 'face
- (facemenu-get-face
- (intern (concat "bg:" (car list)))))
+ (put-text-property s (point) 'face
+ (cons 'background-color (car list)))
(setq s (point))
(insert " " (car list) "\n")
- (put-text-property s (point) 'face
- (facemenu-get-face
- (intern (concat "fg:" (car list)))))
+ (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. The window-system server is queried
-to find how they would actually be displayed. Nil is always returned if the
-correct answer cannot be determined."
+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)
- ((and (eq 'x window-system)
- (equal (x-color-values a) (x-color-values b))))))
+ ((equal (color-values a) (color-values b)))))
-(defun facemenu-add-face (face start end)
+(defun facemenu-add-face (face &optional start end)
"Add FACE to text between START and END.
-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 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."
- (interactive "*xFace:\nr")
- (if (eq face 'default)
- (remove-text-properties start end '(face default))
- (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-discard-redundant-faces
- (cons face
- (if (listp prev) prev (list prev)))))))
- (setq part-start part-end)))))
-
-(defun facemenu-discard-redundant-faces (face-list &optional mask)
- "Remove from FACE-LIST any faces that won't show at all.
-This means they have no non-nil elements that aren't also non-nil in an
-earlier face."
- (let ((useful nil))
- (cond ((null face-list) nil)
- ((null mask)
- (cons (car face-list)
- (facemenu-discard-redundant-faces
- (cdr face-list)
- (copy-sequence (internal-get-face (car face-list))))))
- ((let ((i (length mask))
- (face (internal-get-face (car face-list))))
- (while (>= (setq i (1- i)) 0)
- (if (and (aref face i)
- (not (aref mask i)))
- (progn (setq useful t)
- (aset mask i t))))
- useful)
- (cons (car face-list)
- (facemenu-discard-redundant-faces (cdr face-list) mask)))
- (t (facemenu-discard-redundant-faces (cdr face-list) mask)))))
+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
+ (if (consp (car face-list))
+ (face-attributes-as-vector (car face-list))
+ (or (internal-lisp-face-p (car face-list) frame)
+ (check-face (car face-list))))))
+ (active-list (list (car face-list)))
+ (face-list (cdr face-list))
+ (mask-len (length mask-atts)))
+ (while face-list
+ (if (let ((face-atts
+ (if (consp (car face-list))
+ (face-attributes-as-vector (car face-list))
+ (or (internal-lisp-face-p (car face-list) frame)
+ (check-face (car face-list)))))
+ (i mask-len)
+ (useful nil))
+ (while (> (setq i (1- i)) 1)
+ (and (not (memq (aref face-atts i) '(nil unspecified)))
+ (memq (aref mask-atts i) '(nil unspecified))
+ (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, it is created. If it is created and is of the form `fg:color', then
-set the foreground to that color. If of the form `bg:color', set the
-background. In any case, add it to the appropriate menu. Returns the face,
-or nil if given a bad color."
- (if (or (internal-find-face symbol)
- (let* ((face (make-face symbol))
- (name (symbol-name symbol))
- (color (substring name 3)))
- (cond ((string-match "^fg:" name)
- (set-face-foreground face color)
- (and (eq 'x window-system) (x-color-defined-p color)))
- ((string-match "^bg:" name)
- (set-face-background face color)
- (and (eq 'x window-system) (x-color-defined-p color)))
- (t))))
- symbol))
+If not, create it and add it to the appropriate menu. Return the SYMBOL."
+ (let ((name (symbol-name symbol)))
+ (cond ((facep symbol))
+ (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 (cond ((string-match "^fg:" name)
- (setq name (substring name 3))
- 'facemenu-foreground-menu)
- ((string-match "^bg:" name)
- (setq name (substring name 3))
- 'facemenu-background-menu)
- (t 'facemenu-face-menu)))
+ "Add FACE (a face) to the Face menu.
+
+This is called whenever you create a new face."
+ (let* (name
+ symbol
+ menu docstring
(key (cdr (assoc face facemenu-keybindings)))
function menu-val)
+ (if (symbolp face)
+ (setq name (symbol-name face)
+ symbol face)
+ (setq name face
+ symbol (intern name)))
+ (setq menu 'facemenu-face-menu)
+ (setq docstring
+ (format "Select face `%s' for subsequent insertion."
+ name))
(cond ((eq t facemenu-unlisted-faces))
- ((memq face facemenu-unlisted-faces))
+ ((memq symbol 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 () (interactive)
- (facemenu-set-face (quote (, face))))))
+ `(lambda ()
+ ,docstring
+ (interactive)
+ (facemenu-set-face
+ (quote ,symbol)
+ (if (and mark-active (not current-prefix-arg))
+ (region-beginning))
+ (if (and mark-active (not current-prefix-arg))
+ (region-end)))))
(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)
+ (lambda (m) (and (listp m)
(symbolp (car m))
- (face-equal (car m) face)))
+ (face-equal (car m) symbol)))
(cdr (symbol-function menu))))
(t ; No keyboard equivalent. Figure out where to put it:
- (setq key (vector face)
+ (setq key (vector symbol)
+ 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-add-new-color (color &optional menu)
+ "Add COLOR (a color name string) to the appropriate Face menu.
+MENU should be `facemenu-foreground-menu' or
+`facemenu-background-menu'.
+
+This is called whenever you use a new color."
+ (let* (name
+ symbol
+ docstring
+ function menu-val key
+ (color-p (memq menu '(facemenu-foreground-menu
+ facemenu-background-menu))))
+ (unless (stringp color)
+ (error "%s is not a color" color))
+ (setq name color
+ symbol (intern name))
+
+ (cond ((eq menu 'facemenu-foreground-menu)
+ (setq docstring
+ (format "Select foreground color %s for subsequent insertion."
+ name)))
+ ((eq menu 'facemenu-background-menu)
+ (setq docstring
+ (format "Select background color %s for subsequent insertion."
+ name))))
+ (cond ((facemenu-iterate ; check if equivalent face is already in the menu
+ (lambda (m) (and (listp m)
+ (symbolp (car m))
+ (stringp (cadr m))
+ (string-equal (cadr m) color)))
+ (cdr (symbol-function menu))))
+ (t ; No keyboard equivalent. Figure out where to put it:
+ (setq key (vector symbol)
function 'facemenu-set-face-from-menu
menu-val (symbol-function menu))
(if (and facemenu-new-faces-at-end
nil) ; Return nil for facemenu-iterate
(defun facemenu-complete-face-list (&optional oldlist)
- "Return list of all faces that are look different.
-Starts with given ALIST of faces, and adds elements only if they display
+ "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
+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)
+ (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)
+(defun facemenu-iterate (func 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))
+ (while (and list (not (funcall func (car list))))
+ (setq list (cdr list)))
+ (car list))
(facemenu-update)
+(provide 'facemenu)
+
+;;; arch-tag: 85f6d02b-9085-420e-b651-0678f0e9c7eb
;;; facemenu.el ends here
HCoop / bpt / emacs.git / blobdiff