X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/f61deddc6d2cc98b73e95e31cd3716a456a5d94d..dc3eeeb48af706de824b7b8bae62dc868d26637e:/lisp/facemenu.el diff --git a/lisp/facemenu.el b/lisp/facemenu.el index 1c9c5de811..13cf7fbd73 100644 --- a/lisp/facemenu.el +++ b/lisp/facemenu.el @@ -1,7 +1,9 @@ -;;; facemenu.el -- Create a face menu for interactively adding fonts to text -;; Copyright (c) 1994, 1995 Free Software Foundation, Inc. +;;; facemenu.el --- create a face menu for interactively adding fonts to text -;; Author: Boris Goldowsky +;; Copyright (C) 1994, 1995, 1996, 2001, 2002, 2003, 2004, +;; 2005, 2006 Free Software Foundation, Inc. + +;; Author: Boris Goldowsky ;; Keywords: faces ;; This file is part of GNU Emacs. @@ -17,19 +19,15 @@ ;; 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., 51 Franklin Street, Fifth Floor, +;; Boston, MA 02110-1301, 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. @@ -41,9 +39,9 @@ ;; 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. +;; Faces can be selected from the keyboard as well. +;; The standard keybindings are M-o (or ESC o) + letter: +;; M-o i = "set italic", M-o b = "set bold", etc. ;;; Customization: ;; An alternative set of keybindings that may be easier to type can be set up @@ -62,16 +60,15 @@ ;; (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 -;; `facemenu-new-faces-at-end'. List faces that you don't use in documents -;; (eg, `region') in `facemenu-unlisted-faces'. +;; `facemenu-new-faces-at-end'. List faces that you want to use in documents +;; in `facemenu-listed-faces'. ;;; Known Problems: ;; Bold and Italic do not combine to create bold-italic if you select them @@ -90,51 +87,76 @@ ;;; 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 (define-key global-map "\M-o" 'facemenu-keymap) ;;;###autoload (autoload 'facemenu-keymap "facemenu" "Keymap for face-changing commands." t 'keymap) -(defvar facemenu-key "\M-g" - "Prefix key to use for facemenu commands.") +;; Global bindings: +(define-key global-map [C-down-mouse-2] 'facemenu-menu) +(define-key global-map "\M-o" 'facemenu-keymap) + +(defgroup facemenu nil + "Create a face menu for interactively adding fonts to text." + :group 'faces + :prefix "facemenu-") -(defvar facemenu-keybindings +(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, -but get no keyboard equivalents. +the menu, in the order specified. All other faces which are defined +in `facemenu-listed-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 - font-lock-comment-face font-lock-string-face font-lock-keyword-face - font-lock-function-name-face font-lock-variable-name-face - font-lock-type-face font-lock-reference-face) - "List of faces not to include in the Face menu. -Set this before loading facemenu.el, or call `facemenu-update' after -changing it. - -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.") +just before \"Other\" at the end." + :type 'boolean + :group 'facemenu) + +(defcustom facemenu-listed-faces nil + "*List of faces to include in the Face menu. +Each element should be a symbol, the name of a face. +The \"basic \" faces in `facemenu-keybindings' are automatically +added to the Face menu, and need not be in this list. + +This value takes effect when you load facemenu.el. If the +list includes symbols which are not defined as faces, they +are ignored; however, subsequently defining or creating +those faces adds them to the menu then. You can call +`facemenu-update' to recalculate the menu contents, such as +if you change the value of this variable, + +If this variable is t, all faces that you apply to text +using the face menu commands (even by name), and all faces +that you define or create, are added to the menu. You may +find it useful to set this variable to t temporarily while +you define some faces, so that they will be added. However, +if the value is no longer t and you call `facemenu-update', +it will remove any faces not explicitly in the list." + :type '(choice (const :tag "List all faces" t) + (const :tag "None" nil) + (repeat symbol)) + :group 'facemenu + :version "22.1") ;;;###autoload (defvar facemenu-face-menu @@ -144,31 +166,43 @@ when they are created.") "Menu keymap for faces.") ;;;###autoload (defalias 'facemenu-face-menu facemenu-face-menu) +(put 'facemenu-face-menu 'menu-enable '(facemenu-enable-faces-p)) ;;;###autoload -(defvar facemenu-foreground-menu +(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) +(put 'facemenu-foreground-menu 'menu-enable '(facemenu-enable-faces-p)) ;;;###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) +(put 'facemenu-background-menu 'menu-enable '(facemenu-enable-faces-p)) + +;;; Condition for enabling menu items that set faces. +(defun facemenu-enable-faces-p () + (not (and font-lock-mode font-lock-defaults))) ;;;###autoload -(defvar facemenu-special-menu +(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 [intangible] (cons "Intangible" 'facemenu-set-intangible)) + (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 @@ -177,11 +211,11 @@ when they are created.") ;;;###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-justification-none)) + (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 @@ -190,64 +224,101 @@ when they are created.") ;;;###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) +;; This is split up to avoid an overlong line in loaddefs.el. ;;;###autoload -(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 [dp] (cons "List Properties" 'list-text-properties-at)) - (define-key map [rm] (cons "Remove Properties" '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) +(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) "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.") +If this is nil, then the value of (defined-colors) is used.") (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 @@ -255,312 +326,463 @@ variables." ;;;###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 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 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) + "Apply FACE to the region or next character typed. + +If the region is active (normally true except in Transient +Mark mode) and nonempty, and there is no prefix argument, +this command applies FACE to the region. Otherwise, it applies FACE +to the faces to use for the next character +inserted. (Moving point or switching buffers before typing +a character to insert cancels the specification.) + +If FACE is `default', to \"apply\" it means clearing +the list of faces to be used. For any other value of FACE, +to \"apply\" it means putting FACE at the front of the list +of faces to be used, and removing any faces further +along in the list that would be completely overridden by +preceding faces (including FACE). + +This command can also add FACE to the menu of faces, +if `facemenu-listed-faces' says to do that." + (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 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)))) + (facemenu-set-face-from-menu + (facemenu-add-new-color color 'facemenu-foreground-menu) + 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))) + "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)))) + (facemenu-set-face-from-menu + (facemenu-add-new-color color 'facemenu-background-menu) + 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, 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 selected face. Moving point or switching buffers before -typing a character cancels the request." + "Set the FACE of the region or next character typed. +This function is designed to be called from a menu; FACE is determined +using the event type of the menu entry. If FACE is a symbol whose +name starts with \"fg:\" or \"bg:\", then this functions sets the +foreground or background to the color specified by the rest of the +symbol's name. Any other symbol is considered the name of a face. + +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 - (facemenu-add-face face start end) - (facemenu-self-insert-face face))) - -(defun facemenu-self-insert-face (face) - (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)) + (facemenu-add-face + (let ((fn (symbol-name face))) + (if (string-match "\\`\\([fb]\\)g:\\(.+\\)" fn) + (list (list (if (string= (match-string 1 fn) "f") + :foreground + :background) + (match-string 2 fn))) + face)) + start end)) ;;;###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-all (start end) - "Remove all text properties that facemenu added to region." +(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 invisible nil intangible nil - read-only nil category nil)))) + (remove-text-properties + start end '(face nil mouse-face 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))) - (if (null props) - (message "None") - (with-output-to-temp-buffer "*Text Properties*" - (princ (format "Text properties at %d:\n\n" p)) - (while props - (princ (format "%-20s %S\n" - (car props) (car (cdr props)))) - (setq props (cdr (cdr props)))))))) +(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 facemenu-read-color (&optional prompt) "Read a color using the minibuffer." - (let ((col (completing-read (or prompt "Color: ") - (or facemenu-color-alist - (if (eq 'x window-system) - (mapcar 'list (x-defined-colors)))) - nil t))) + (let* ((completion-ignore-case t) + (col (completing-read (or prompt "Color: ") + (or facemenu-color-alist + (defined-colors)) + nil t))) (if (equal "" col) nil col))) ;;;###autoload -(defun list-colors-display (&optional list) +(defun list-colors-display (&optional list buffer-name) "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." +colors to display. Otherwise, this command computes a list of +colors that the current display can handle. If the optional +argument BUFFER-NAME is nil, it defaults to *Colors*." (interactive) - (if (and (null list) (eq 'x window-system)) - (progn - (setq list (x-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*" + (when (and (null list) (> (display-color-cells) 0)) + (setq list (list-colors-duplicates (defined-colors))) + (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 (or buffer-name "*Colors*") (save-excursion (set-buffer standard-output) - (let ((facemenu-unlisted-faces t) - 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))))) - (setq s (point)) - (insert " " (car list) "\n") - (put-text-property s (point) 'face - (facemenu-get-face - (intern (concat "fg:" (car list))))) - (setq list (cdr list))))))) + (setq truncate-lines t) + (if temp-buffer-show-function + (list-colors-print list) + ;; Call list-colors-print from temp-buffer-show-hook + ;; to get the right value of window-width in list-colors-print + ;; after the buffer is displayed. + (add-hook 'temp-buffer-show-hook + (lambda () (list-colors-print list)) nil t))))) + +(defun list-colors-print (list) + (dolist (color list) + (if (consp color) + (if (cdr color) + (setq color (sort color (lambda (a b) + (string< (downcase a) + (downcase b)))))) + (setq color (list color))) + (put-text-property + (prog1 (point) + (insert (car color)) + (indent-to 22)) + (point) + 'face (cons 'background-color (car color))) + (put-text-property + (prog1 (point) + (insert " " (if (cdr color) + (mapconcat 'identity (cdr color) ", ") + (car color)))) + (point) + 'face (cons 'foreground-color (car color))) + (indent-to (max (- (window-width) 8) 44)) + (insert (apply 'format "#%02x%02x%02x" + (mapcar (lambda (c) (lsh c -8)) + (color-values (car color))))) + + (insert "\n")) + (goto-char (point-min))) + +(defun list-colors-duplicates (&optional list) + "Return a list of colors with grouped duplicate colors. +If a color has no duplicates, then the element of the returned list +has the form '(COLOR-NAME). The element of the returned list with +duplicate colors has the form '(COLOR-NAME DUPLICATE-COLOR-NAME ...). +This function uses the predicate `facemenu-color-equal' to compare +color names. If the optional argument LIST is non-nil, it should +be a list of colors to display. Otherwise, this function uses +a list of colors that the current display can handle." + (let* ((list (mapcar 'list (or list (defined-colors)))) + (l list)) + (while (cdr l) + (if (and (facemenu-color-equal (car (car l)) (car (car (cdr l)))) + (not (if (boundp 'w32-default-color-map) + (not (assoc (car (car l)) w32-default-color-map))))) + (progn + (setcdr (car l) (cons (car (car (cdr l))) (cdr (car l)))) + (setcdr l (cdr (cdr l)))) + (setq l (cdr l)))) + 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 window-system server to find out what the -color names mean. It returns nil if the colors differ or if it can't +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))))) - -(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)) +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))) + ;; Specify the selected frame + ;; because nil would mean to use + ;; the new-frame default settings, + ;; and those are usually nil. + (selected-frame))))) + (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)))) + (unless (facemenu-enable-faces-p) + (message "Font-lock mode will override any faces you set in this buffer"))) + +(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)) 0) + (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-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 if `facemenu-listed-faces' says so. +This is called whenever you create a new face, and at other times." + (let* (name + symbol + menu docstring (key (cdr (assoc face facemenu-keybindings))) function menu-val) - (cond ((eq t facemenu-unlisted-faces)) - ((memq face facemenu-unlisted-faces)) - (key ; has a keyboard equivalent. These go at the front. + (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 ((facemenu-iterate ; check if equivalent face is already in the menu + (lambda (m) (and (listp m) + (symbolp (car m)) + ;; Avoid error in face-equal + ;; when a non-face is erroneously present. + (facep (car m)) + (face-equal (car m) symbol))) + (cdr (symbol-function menu)))) + ;; Faces with a keyboard equivalent. These go at the front. + (key (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) - (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) + ;; Faces with no keyboard equivalent. Figure out where to put it: + ((or (eq t facemenu-listed-faces) + (memq symbol facemenu-listed-faces)) + (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)) + (> (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 menu) + "Add COLOR (a color name string) to the appropriate Face menu. +MENU should be `facemenu-foreground-menu' or `facemenu-background-menu'. +Return the event type (a symbol) of the added menu entry. + +This is called whenever you use a new color." + (let (symbol docstring) + (unless (color-defined-p color) + (error "Color `%s' undefined" color)) + (cond ((eq menu 'facemenu-foreground-menu) + (setq docstring + (format "Select foreground color %s for subsequent insertion." + color) + symbol (intern (concat "fg:" color)))) + ((eq menu 'facemenu-background-menu) + (setq docstring + (format "Select background color %s for subsequent insertion." + color) + symbol (intern (concat "bg:" color)))) + (t (error "MENU should be `facemenu-foreground-menu' or `facemenu-background-menu'"))) + (unless (facemenu-iterate ; Check if color is already in the menu. + (lambda (m) (and (listp m) + (eq (car m) symbol))) + (cdr (symbol-function menu))) + ;; Color is not in the menu. Figure out where to put it. + (let ((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 color function) + (car (nth (- (length menu-val) 3) menu-val))) + (define-key menu key (cons color function))))) + symbol)) + (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