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413 lines
14 KiB
EmacsLisp
413 lines
14 KiB
EmacsLisp
;;; cus-theme.el -- custom theme creation user interface
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;;
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;; Copyright (C) 2001, 2002, 2003, 2004, 2005,
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;; 2006, 2007, 2008 Free Software Foundation, Inc.
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;;
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;; Author: Alex Schroeder <alex@gnu.org>
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;; Maintainer: FSF
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;; Keywords: help, faces
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Code:
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(require 'widget)
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(require 'cus-edit)
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(eval-when-compile
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(require 'wid-edit))
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(defvar custom-new-theme-mode-map
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(let ((map (make-keymap)))
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(set-keymap-parent map widget-keymap)
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(suppress-keymap map)
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(define-key map "n" 'widget-forward)
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(define-key map "p" 'widget-backward)
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map)
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"Keymap for `custom-new-theme-mode'.")
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(define-derived-mode custom-new-theme-mode nil "New-Theme"
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"Major mode for the buffer created by `customize-create-theme'.
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Do not call this mode function yourself. It is only meant for internal
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use by `customize-create-theme'."
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(use-local-map custom-new-theme-mode-map)
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(define-key custom-new-theme-mode-map [mouse-1] 'widget-move-and-invoke)
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(set (make-local-variable 'widget-documentation-face) 'custom-documentation)
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(set (make-local-variable 'widget-button-face) custom-button)
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(set (make-local-variable 'widget-button-pressed-face) custom-button-pressed)
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(set (make-local-variable 'widget-mouse-face) custom-button-mouse)
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(when custom-raised-buttons
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(set (make-local-variable 'widget-push-button-prefix) "")
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(set (make-local-variable 'widget-push-button-suffix) "")
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(set (make-local-variable 'widget-link-prefix) "")
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(set (make-local-variable 'widget-link-suffix) "")))
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(put 'custom-new-theme-mode 'mode-class 'special)
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(defvar custom-theme-name nil)
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(defvar custom-theme-variables nil)
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(defvar custom-theme-faces nil)
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(defvar custom-theme-description)
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(defvar custom-theme-insert-variable-marker)
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(defvar custom-theme-insert-face-marker)
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;;;###autoload
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(defun customize-create-theme ()
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"Create a custom theme."
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(interactive)
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(switch-to-buffer (generate-new-buffer "*New Custom Theme*"))
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(let ((inhibit-read-only t))
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(erase-buffer))
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(custom-new-theme-mode)
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(make-local-variable 'custom-theme-name)
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(make-local-variable 'custom-theme-variables)
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(make-local-variable 'custom-theme-faces)
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(make-local-variable 'custom-theme-description)
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(make-local-variable 'custom-theme-insert-variable-marker)
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(make-local-variable 'custom-theme-insert-face-marker)
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(widget-insert "This buffer helps you write a custom theme elisp file.
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This will help you share your customizations with other people.
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Insert the names of all variables and faces you want the theme to include.
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Invoke \"Save Theme\" to save the theme. The theme file will be saved to
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the directory " custom-theme-directory "\n\n")
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(widget-create 'push-button
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:tag "Visit Theme"
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:help-echo "Insert the settings of a pre-defined theme."
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:action (lambda (widget &optional event)
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(call-interactively 'custom-theme-visit-theme)))
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(widget-insert " ")
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(widget-create 'push-button
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:tag "Merge Theme"
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:help-echo "Merge in the settings of a pre-defined theme."
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:action (lambda (widget &optional event)
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(call-interactively 'custom-theme-merge-theme)))
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(widget-insert " ")
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(widget-create 'push-button
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:notify (lambda (&rest ignore)
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(when (y-or-n-p "Discard current changes? ")
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(kill-buffer (current-buffer))
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(customize-create-theme)))
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"Reset Buffer")
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(widget-insert " ")
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(widget-create 'push-button
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:notify (function custom-theme-write)
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"Save Theme")
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(widget-insert "\n")
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(widget-insert "\n\nTheme name: ")
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(setq custom-theme-name
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(widget-create 'editable-field
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:size 10
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user-login-name))
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(widget-insert "\n\nDocumentation:\n")
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(setq custom-theme-description
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(widget-create 'text
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:value (format-time-string "Created %Y-%m-%d.")))
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(widget-insert "\n")
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(widget-create 'push-button
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:tag "Insert Variable"
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:help-echo "Add another variable to this theme."
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:action (lambda (widget &optional event)
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(call-interactively 'custom-theme-add-variable)))
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(widget-insert "\n")
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(setq custom-theme-insert-variable-marker (point-marker))
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(widget-insert "\n")
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(widget-create 'push-button
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:tag "Insert Face"
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:help-echo "Add another face to this theme."
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:action (lambda (widget &optional event)
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(call-interactively 'custom-theme-add-face)))
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(widget-insert "\n")
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(setq custom-theme-insert-face-marker (point-marker))
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(widget-insert "\n")
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(widget-create 'push-button
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:notify (lambda (&rest ignore)
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(when (y-or-n-p "Discard current changes? ")
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(kill-buffer (current-buffer))
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(customize-create-theme)))
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"Reset Buffer")
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(widget-insert " ")
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(widget-create 'push-button
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:notify (function custom-theme-write)
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"Save Theme")
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(widget-insert "\n")
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(widget-setup)
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(goto-char (point-min))
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(message ""))
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;;; Theme variables
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(defun custom-theme-add-variable (symbol)
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(interactive "vVariable name: ")
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(cond ((assq symbol custom-theme-variables)
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(message "%s is already in the theme" (symbol-name symbol)))
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((not (boundp symbol))
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(message "%s is not defined as a variable" (symbol-name symbol)))
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((eq symbol 'custom-enabled-themes)
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(message "Custom theme cannot contain `custom-enabled-themes'"))
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(t
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(save-excursion
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(goto-char custom-theme-insert-variable-marker)
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(widget-insert "\n")
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(let ((widget (widget-create 'custom-variable
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:tag (custom-unlispify-tag-name symbol)
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:custom-level 0
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:action 'custom-theme-variable-action
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:custom-state 'unknown
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:value symbol)))
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(push (cons symbol widget) custom-theme-variables)
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(custom-magic-reset widget))
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(widget-setup)))))
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(defvar custom-theme-variable-menu
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`(("Reset to Current" custom-redraw
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(lambda (widget)
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(and (boundp (widget-value widget))
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(memq (widget-get widget :custom-state)
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'(themed modified changed)))))
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("Reset to Theme Value" custom-variable-reset-theme
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(lambda (widget)
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(let ((theme (intern (widget-value custom-theme-name)))
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(symbol (widget-value widget))
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found)
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(and (custom-theme-p theme)
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(dolist (setting (get theme 'theme-settings) found)
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(if (and (eq (cadr setting) symbol)
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(eq (car setting) 'theme-value))
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(setq found t)))))))
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("---" ignore ignore)
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("Delete" custom-theme-delete-variable nil))
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"Alist of actions for the `custom-variable' widget in Custom Theme Mode.
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See the documentation for `custom-variable'.")
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(defun custom-theme-variable-action (widget &optional event)
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"Show the Custom Theme Mode menu for a `custom-variable' widget.
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Optional EVENT is the location for the menu."
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(let ((custom-variable-menu custom-theme-variable-menu))
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(custom-variable-action widget event)))
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(defun custom-variable-reset-theme (widget)
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"Reset WIDGET to its value for the currently edited theme."
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(let ((theme (intern (widget-value custom-theme-name)))
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(symbol (widget-value widget))
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found)
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(dolist (setting (get theme 'theme-settings))
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(if (and (eq (cadr setting) symbol)
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(eq (car setting) 'theme-value))
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(setq found setting)))
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(widget-value-set (car (widget-get widget :children))
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(nth 3 found)))
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(widget-put widget :custom-state 'themed)
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(custom-redraw-magic widget)
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(widget-setup))
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(defun custom-theme-delete-variable (widget)
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(setq custom-theme-variables
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(assq-delete-all (widget-value widget) custom-theme-variables))
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(widget-delete widget))
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;;; Theme faces
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(defun custom-theme-add-face (symbol)
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(interactive (list (read-face-name "Face name" nil nil)))
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(cond ((assq symbol custom-theme-faces)
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(message "%s is already in the theme" (symbol-name symbol)))
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((not (facep symbol))
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(message "%s is not defined as a face" (symbol-name symbol)))
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(t
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(save-excursion
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(goto-char custom-theme-insert-face-marker)
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(widget-insert "\n")
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(let ((widget (widget-create 'custom-face
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:tag (custom-unlispify-tag-name symbol)
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:custom-level 0
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:action 'custom-theme-face-action
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:custom-state 'unknown
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:value symbol)))
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(push (cons symbol widget) custom-theme-faces)
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(custom-magic-reset widget)
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(widget-setup))))))
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(defvar custom-theme-face-menu
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`(("Reset to Theme Value" custom-face-reset-theme
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(lambda (widget)
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(let ((theme (intern (widget-value custom-theme-name)))
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(symbol (widget-value widget))
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found)
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(and (custom-theme-p theme)
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(dolist (setting (get theme 'theme-settings) found)
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(if (and (eq (cadr setting) symbol)
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(eq (car setting) 'theme-face))
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(setq found t)))))))
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("---" ignore ignore)
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("Delete" custom-theme-delete-face nil))
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"Alist of actions for the `custom-variable' widget in Custom Theme Mode.
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See the documentation for `custom-variable'.")
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(defun custom-theme-face-action (widget &optional event)
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"Show the Custom Theme Mode menu for a `custom-face' widget.
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Optional EVENT is the location for the menu."
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(let ((custom-face-menu custom-theme-face-menu))
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(custom-face-action widget event)))
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(defun custom-face-reset-theme (widget)
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"Reset WIDGET to its value for the currently edited theme."
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(let ((theme (intern (widget-value custom-theme-name)))
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(symbol (widget-value widget))
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found)
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(dolist (setting (get theme 'theme-settings))
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(if (and (eq (cadr setting) symbol)
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(eq (car setting) 'theme-face))
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(setq found setting)))
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(widget-value-set (car (widget-get widget :children))
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(nth 3 found)))
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(widget-put widget :custom-state 'themed)
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(custom-redraw-magic widget)
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(widget-setup))
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(defun custom-theme-delete-face (widget)
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(setq custom-theme-faces
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(assq-delete-all (widget-value widget) custom-theme-faces))
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(widget-delete widget))
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;;; Reading and writing
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(defun custom-theme-visit-theme ()
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(interactive)
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(when (or (null custom-theme-variables)
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(if (y-or-n-p "Discard current changes? ")
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(progn (customize-create-theme) t)))
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(let ((theme (call-interactively 'custom-theme-merge-theme)))
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(unless (eq theme 'user)
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(widget-value-set custom-theme-name (symbol-name theme)))
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(widget-value-set custom-theme-description
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(or (get theme 'theme-documentation)
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(format-time-string "Created %Y-%m-%d.")))
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(widget-setup))))
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(defun custom-theme-merge-theme (theme)
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(interactive "SCustom theme name: ")
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(unless (eq theme 'user)
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(load-theme theme))
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(let ((settings (get theme 'theme-settings)))
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(dolist (setting settings)
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(if (eq (car setting) 'theme-value)
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(custom-theme-add-variable (cadr setting))
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(custom-theme-add-face (cadr setting)))))
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(disable-theme theme)
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theme)
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(defun custom-theme-write (&rest ignore)
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(let* ((name (widget-value custom-theme-name))
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(filename (expand-file-name (concat name "-theme.el")
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custom-theme-directory))
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(doc (widget-value custom-theme-description))
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(vars custom-theme-variables)
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(faces custom-theme-faces))
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(cond ((or (string-equal name "")
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(string-equal name "user")
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(string-equal name "changed"))
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(error "Custom themes cannot be named `%s'" name))
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((string-match " " name)
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(error "Custom theme names should not contain spaces"))
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((if (file-exists-p filename)
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(not (y-or-n-p
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(format "File %s exists. Overwrite? " filename))))
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(error "Aborted")))
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(with-temp-buffer
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(emacs-lisp-mode)
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(unless (file-exists-p custom-theme-directory)
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(make-directory (file-name-as-directory custom-theme-directory) t))
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(setq buffer-file-name filename)
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(erase-buffer)
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(insert "(deftheme " name)
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(if doc (insert "\n \"" doc "\""))
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(insert ")\n")
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(custom-theme-write-variables name vars)
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(custom-theme-write-faces name faces)
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(insert "\n(provide-theme '" name ")\n")
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(save-buffer))
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(dolist (var vars)
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(widget-put (cdr var) :custom-state 'saved)
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(custom-redraw-magic (cdr var)))
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(dolist (face faces)
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(widget-put (cdr face) :custom-state 'saved)
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(custom-redraw-magic (cdr face)))))
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(defun custom-theme-write-variables (theme vars)
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"Write a `custom-theme-set-variables' command for THEME.
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It includes all variables in list VARS."
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(when vars
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(let ((standard-output (current-buffer)))
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(princ "\n(custom-theme-set-variables\n")
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(princ " '")
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(princ theme)
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(princ "\n")
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(mapc (lambda (spec)
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(let* ((symbol (car spec))
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(child (car-safe (widget-get (cdr spec) :children)))
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(value (if child
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(widget-value child)
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;; For hidden widgets, use the standard value
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(get symbol 'standard-value))))
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(when (boundp symbol)
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(unless (bolp)
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(princ "\n"))
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(princ " '(")
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(prin1 symbol)
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(princ " ")
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(prin1 (custom-quote value))
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(princ ")"))))
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vars)
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(if (bolp)
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(princ " "))
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(princ ")")
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(unless (looking-at "\n")
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(princ "\n")))))
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(defun custom-theme-write-faces (theme faces)
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"Write a `custom-theme-set-faces' command for THEME.
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It includes all faces in list FACES."
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(when faces
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(let ((standard-output (current-buffer)))
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(princ "\n(custom-theme-set-faces\n")
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(princ " '")
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(princ theme)
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(princ "\n")
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(mapc (lambda (spec)
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(let* ((symbol (car spec))
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(child (car-safe (widget-get (cdr spec) :children)))
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(value (if child (widget-value child))))
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(when (and (facep symbol) child)
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(unless (bolp)
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(princ "\n"))
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(princ " '(")
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(prin1 symbol)
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(princ " ")
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(prin1 value)
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(princ ")"))))
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faces)
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(if (bolp)
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(princ " "))
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(princ ")")
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(unless (looking-at "\n")
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(princ "\n")))))
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;;; arch-tag: cd6919bc-63af-410e-bae2-b6702e762344
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;;; cus-theme.el ends here
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