;;; color-theme.el --- install color themes

;; Copyright (C) 1999, 2000  Jonadab the Unsightly One <jonadab@bright.net>
;; Copyright (C) 2000, 2001, 2002, 2003  Alex Schroeder <alex@gnu.org>
;; Copyright (C) 2003, 2004, 2005, 2006  Xavier Maillard <zedek@gnu.org>

;; Version: 6.6.0
;; Keywords: faces
;; Author: Jonadab the Unsightly One <jonadab@bright.net>
;; Maintainer: Xavier Maillard <zedek@gnu.org>
;; URL: http://www.emacswiki.org/cgi-bin/wiki.pl?ColorTheme

;; This file is not (YET) part of GNU Emacs.

;; This is free software; you can redistribute it and/or modify it under
;; the terms of the GNU General Public License as published by the Free
;; Software Foundation; either version 2, or (at your option) any later
;; version.
;;
;; This is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
;; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
;; for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
;; MA 02111-1307, USA.

;;; Commentary:

;; Please read README and BUGS files for any relevant help.
;; Contributors (not themers) should also read HACKING file.

;;; Thanks

;; Deepak Goel  <deego@glue.umd.edu>
;; S. Pokrovsky <pok@nbsp.nsk.su> for ideas and discussion.
;; Gordon Messmer <gordon@dragonsdawn.net> for ideas and discussion.
;; Sriram Karra <karra@cs.utah.edu> for the color-theme-submit stuff.
;; Olgierd `Kingsajz' Ziolko <kingsajz@rpg.pl> for the spec-filter idea.
;; Brian Palmer for color-theme-library ideas and code
;; All the users that contributed their color themes.



;;; Code:
(eval-when-compile
  (require 'easymenu)
  (require 'reporter)
  (require 'sendmail))

(require 'cl); set-difference is a function...

;; for custom-face-attributes-get or face-custom-attributes-get
(require 'cus-face)
(require 'wid-edit); for widget-apply stuff in cus-face.el

(defconst color-theme-maintainer-address "zedek@gnu.org"
  "Address used by `submit-color-theme'.")

;; Emacs / XEmacs compatibility and workaround layer

(cond ((and (facep 'tool-bar)
	    (not (facep 'toolbar)))
       (put 'toolbar 'face-alias 'tool-bar))
      ((and (facep 'toolbar)
	    (not (facep 'tool-bar)))
       (put 'tool-bar 'face-alias 'toolbar)))

(defvar color-theme-xemacs-p (and (featurep 'xemacs) 
                                  (string-match "XEmacs" emacs-version))
  "Non-nil if running XEmacs.")

;; Add this since it appears to miss in emacs-2x
(or (fboundp 'replace-in-string)
    (defun replace-in-string (target old new)
      (replace-regexp-in-string old new  target)))

;; face-attr-construct has a problem in Emacs 20.7 and older when
;; dealing with inverse-video faces.  Here is a short test to check
;; wether you are affected.

;; (set-background-color "wheat")
;; (set-foreground-color "black")
;; (setq a (make-face 'a-face))
;; (face-spec-set a '((t (:background "white" :foreground "black" :inverse-video t))))
;; (face-attr-construct a)
;;     => (:background "black" :inverse-video t)

;; The expected response is the original specification:
;;     => (:background "white" :foreground "black" :inverse-video t)

;; That's why we depend on cus-face.el functionality.

(cond ((fboundp 'custom-face-attributes-get)
       (defun color-theme-face-attr-construct (face frame)
         (if (atom face)
             (custom-face-attributes-get face frame)
             (if (and (consp face) (eq (car face) 'quote))
                 (custom-face-attributes-get (cadr face) frame)
                 (custom-face-attributes-get (car face) frame)))))
      ((fboundp 'face-custom-attributes-get)
       (defalias 'color-theme-face-attr-construct
	 'face-custom-attributes-get))
      (t
       (defun color-theme-face-attr-construct (&rest ignore)
	 (error "Unable to construct face attributes"))))

(defun color-theme-alist (plist)
  "Transform PLIST into an alist if it is a plist and return it.
If the first element of PLIST is a cons cell, we just return PLIST,
assuming PLIST to be an alist.  If the first element of plist is not a
symbol, this is an error: We cannot distinguish a plist from an ordinary
list, but a list that doesn't start with a symbol is certainly no plist
and no alist.

This is used to make sure `default-frame-alist' really is an alist and not
a plist.  In XEmacs, the alist is deprecated; a plist is used instead."
  (cond ((consp (car plist))
	 plist)
	((not (symbolp (car plist)))
	 (error "Wrong type argument: plist, %S" plist))
	((featurep 'xemacs)
	 (plist-to-alist plist)))); XEmacs only

;; Customization

(defgroup color-theme nil
  "Color Themes for Emacs.
A color theme consists of frame parameter settings, variable settings,
and face definitions."
  :version "20.6"
  :group 'faces)

(defcustom color-theme-legal-frame-parameters "\\(color\\|mode\\)$"
  "Regexp that matches frame parameter names.
Only frame parameter names that match this regexp can be changed as part
of a color theme."
  :type '(choice (const :tag "Colors only" "\\(color\\|mode\\)$")
		 (const :tag "Colors, fonts, and size"
			"\\(color\\|mode\\|font\\|height\\|width\\)$")
		 (regexp :tag "Custom regexp"))
  :group 'color-theme
  :link '(info-link "(elisp)Window Frame Parameters"))

(defcustom color-theme-legal-variables "\\(color\\|face\\)$"
  "Regexp that matches variable names.
Only variables that match this regexp can be changed as part of a color
theme.  In addition to matching this name, the variables have to be user
variables (see function `user-variable-p')."
  :type 'regexp
  :group 'color-theme)

(defcustom color-theme-illegal-faces "^w3-"
  "Regexp that matches face names forbidden in themes.
The default setting \"^w3-\" excludes w3 faces since these
are created dynamically."
  :type 'regexp
  :group 'color-theme
  :link '(info-link "(elisp)Faces for Font Lock")
  :link '(info-link "(elisp)Standard Faces"))

(defcustom color-theme-illegal-default-attributes '(:family :height :width)
  "A list of face properties to be ignored when installing faces.
This prevents Emacs from doing terrible things to your display just because
a theme author likes weird fonts."
  :type '(repeat symbol)
  :group 'color-theme)

(defcustom color-theme-is-global t
  "*Determines wether a color theme is installed on all frames or not.
If non-nil, color themes will be installed for all frames.
If nil, color themes will be installed for the selected frame only.

A possible use for this variable is dynamic binding. Here is a larger
example to put in your ~/.emacs; it will make the Blue Sea color theme
the default used for the first frame, and it will create two additional
frames with different color themes.

setup:
    \(require 'color-theme)
    ;; set default color theme
    \(color-theme-blue-sea)
    ;; create some frames with different color themes
    \(let ((color-theme-is-global nil))
      \(select-frame (make-frame))
      \(color-theme-gnome2)
      \(select-frame (make-frame))
      \(color-theme-standard))

Please note that using XEmacs and and a nil value for
color-theme-is-global will ignore any variable settings for the color
theme, since XEmacs doesn't have frame-local variable bindings.

Also note that using Emacs and a non-nil value for color-theme-is-global
will install a new color theme for all frames.  Using XEmacs and a
non-nil value for color-theme-is-global will install a new color theme
only on those frames that are not using a local color theme."
  :type 'boolean
  :group 'color-theme)

(defcustom color-theme-is-cumulative t
  "*Determines wether new color themes are installed on top of each other.
If non-nil, installing a color theme will undo all settings made by
previous color themes."
  :type 'boolean
  :group 'color-theme)

(defcustom color-theme-directory nil
  "Directory where we can find additionnal themes (personnal).
Note that there is at least one directory shipped with the official
color-theme distribution where all contributed themes are located.
This official selection can't be changed with that variable. 
However, you still can decide to turn it on or off and thus,
not be shown with all themes but yours."
  :type '(repeat string)
  :group 'color-theme)

(defcustom color-theme-libraries (directory-files 
                                  (concat 
                                   (file-name-directory (locate-library "color-theme"))
                                   "/themes") t "^color-theme")
  "A list of files, which will be loaded in color-theme-initialize depending
on `color-theme-load-all-themes' value. 
This allows a user to prune the default color-themes (which can take a while
to load)."
  :type '(repeat string)
  :group 'color-theme)

(defcustom color-theme-load-all-themes t
  "When t, load all color-theme theme files
as presented by `color-theme-libraries'. Else
do not load any of this themes."
  :type 'boolean
  :group 'color-theme)

(defcustom color-theme-mode-hook nil
  "Hook for color-theme-mode."
  :type 'hook
  :group 'color-theme)

(defvar color-theme-mode-map
  (let ((map (make-sparse-keymap)))
    (define-key map (kbd "RET") 'color-theme-install-at-point)
    (define-key map (kbd "c") 'list-colors-display)
    (define-key map (kbd "d") 'color-theme-describe)
    (define-key map (kbd "f") 'list-faces-display)
    (define-key map (kbd "i") 'color-theme-install-at-point)
    (define-key map (kbd "l") 'color-theme-install-at-point-for-current-frame)
    (define-key map (kbd "p") 'color-theme-print)
    (define-key map (kbd "q") 'bury-buffer)
    (define-key map (kbd "?") 'color-theme-describe)
    (if color-theme-xemacs-p
	(define-key map (kbd "<button2>") 'color-theme-install-at-mouse)
      (define-key map (kbd "<mouse-2>") 'color-theme-install-at-mouse))
    map)
  "Mode map used for the buffer created by `color-theme-select'.")

(defvar color-theme-initialized nil
  "Internal variable determining whether color-theme-initialize has been invoked yet")

(defvar color-theme-buffer-name "*Color Theme Selection*"
  "Name of the color theme selection buffer.")

(defvar color-theme-original-frame-alist nil
  "nil until one of the color themes has been installed.")

(defvar color-theme-history nil
  "List of color-themes called, in reverse order")

(defcustom color-theme-history-max-length nil
  "Max length of history to maintain.
Two other values are acceptable: t means no limit, and
nil means that no history is maintained."
  :type '(choice (const :tag "No history" nil)
		 (const :tag "Unlimited length" t)
		 integer)
  :group 'color-theme)

(defvar color-theme-counter 0
  "Counter for every addition to `color-theme-history'.
This counts how many themes were installed, regardless
of `color-theme-history-max-length'.")

(defvar color-theme-entry-path (cond
                                ;; Emacs 22.x and later
                                ((lookup-key global-map [menu-bar tools])
                                 '("tools"))
                                ;; XEmacs
                                ((featurep 'xemacs)
                                 (setq tool-entry '("Tools")))
                                ;; Emacs < 22
                                (t
                                 '("Tools")))
  "Menu tool entry path.")

(defun color-theme-add-to-history (name)
  "Add color-theme NAME to `color-theme-history'."
  (setq color-theme-history
	(cons (list name color-theme-is-cumulative)
	      color-theme-history)
	color-theme-counter (+ 1 color-theme-counter))
  ;; Truncate the list if necessary.
  (when (and (integerp color-theme-history-max-length)
	     (>= (length color-theme-history)
		 color-theme-history-max-length))
    (setcdr (nthcdr (1- color-theme-history-max-length)
		    color-theme-history)
	    nil)))

;; (let ((l '(1 2 3 4 5)))
;;   (setcdr (nthcdr 2 l) nil)
;;   l)



;; List of color themes used to create the *Color Theme Selection*
;; buffer.

(defvar color-themes
  '((color-theme-aalto-dark "Aalto Dark" "Jari Aalto <jari.aalto@poboxes.com>")
    (color-theme-aalto-light "Aalto Light" "Jari Aalto <jari.aalto@poboxes.com>")
    (color-theme-aliceblue "Alice Blue" "Girish Bharadwaj <girishb@gbvsoft.com>")
    (color-theme-andreas "Andreas" "Andreas Busch <Andreas.Busch@politics.ox.ac.uk>")
    (color-theme-arjen "Arjen" "Arjen Wiersma <arjen@wiersma.org>")
    (color-theme-beige-diff "Beige Diff" "Alex Schroeder <alex@gnu.org>" t)
    (color-theme-bharadwaj "Bharadwaj" "Girish Bharadwaj <girishb@gbvsoft.com>")
    (color-theme-bharadwaj-slate "Bharadwaj Slate" "Girish Bharadwaj <girishb@gbvsoft.com>")
    (color-theme-billw "Billw" "Bill White <billw@wolfram.com>")
    (color-theme-black-on-gray "BlackOnGray" "Sudhir Bhojwani <sbhojwani@altoweb.com>")
    (color-theme-blippblopp "Blipp Blopp" "Thomas Sicheritz-Ponten<thomas@biopython.org>")
    (color-theme-simple-1 "Black" "Jonadab <jonadab@bright.net>")
    (color-theme-blue-erc "Blue ERC" "Alex Schroeder <alex@gnu.org>" t)
    (color-theme-blue-gnus "Blue Gnus" "Alex Schroeder <alex@gnu.org>" t)
    (color-theme-blue-mood "Blue Mood" "Nelson Loyola <nloyola@yahoo.com>")
    (color-theme-blue-sea "Blue Sea" "Alex Schroeder <alex@gnu.org>")
    (color-theme-calm-forest "Calm Forest" "Artur Hefczyc <kobit@plusnet.pl>")
    (color-theme-charcoal-black "Charcoal Black" "Lars Chr. Hausmann <jazz@zqz.dk>")
    (color-theme-goldenrod "Cheap Goldenrod" "Alex Schroeder <alex@gnu.org>")
    (color-theme-clarity "Clarity and Beauty" "Richard Wellum <rwellum@cisco.com>")
    (color-theme-classic "Classic" "Frederic Giroud <postcard@worldonline.fr>")
    (color-theme-comidia "Comidia" "Marcelo Dias de Toledo <mtole@ig.com.br>")
    (color-theme-jsc-dark "Cooper Dark" "John S Cooper <John.Cooper@eu.citrix.com>")
    (color-theme-jsc-light "Cooper Light" "John S Cooper <John.Cooper@eu.citrix.com>")
    (color-theme-jsc-light2 "Cooper Light 2" "John S Cooper <John.Cooper@eu.citrix.com>")
    (color-theme-dark-blue "Dark Blue" "Chris McMahan <cmcmahan@one.net>")
    (color-theme-dark-blue2 "Dark Blue 2" "Chris McMahan <cmcmahan@one.net>")
    (color-theme-dark-green "Dark Green" "eddy_woody@hotmail.com")
    (color-theme-dark-laptop "Dark Laptop" "Laurent Michel <ldm@cs.brown.edu>")
    (color-theme-deep-blue "Deep Blue" "Tomas Cerha <cerha@brailcom.org>")
    (color-theme-digital-ofs1 "Digital OFS1" "Gareth Owen <gowen@gwowen.freeserve.co.uk>")
    (color-theme-euphoria "Euphoria" "oGLOWo@oGLOWo.cjb.net")
    (color-theme-feng-shui "Feng Shui" "Walter Higgins <walterh@rocketmail.com>")
    (color-theme-fischmeister "Fischmeister"
			      "Sebastian Fischmeister <sfischme@nexus.lzk.tuwien.ac.at>")
    (color-theme-gnome "Gnome" "Jonadab <jonadab@bright.net>")
    (color-theme-gnome2 "Gnome 2" "Alex Schroeder <alex@gnu.org>")
    (color-theme-gray1 "Gray1" "Paul Pulli <P.Pulli@motorola.com>")
    (color-theme-gray30 "Gray30" "Girish Bharadwaj <girishb@gbvsoft.com>")
    (color-theme-kingsajz "Green Kingsajz" "Olgierd `Kingsajz' Ziolko <kingsajz@rpg.pl>")
    (color-theme-greiner "Greiner" "Kevin Greiner <kgreiner@mapquest.com>")
    (color-theme-gtk-ide "GTK IDE" "Gordon Messmer <gordon@dragonsdawn.net>")
    (color-theme-high-contrast "High Contrast" "Alex Schroeder <alex@gnu.org>")
    (color-theme-hober "Hober" "Edward O'Connor <ted@oconnor.cx>")
    (color-theme-infodoc "Infodoc" "Frederic Giroud <postcard@worldonline.fr>")
    (color-theme-jb-simple "JB Simple" "jeff@dvns.com")
    (color-theme-jedit-grey "Jedit Grey" "Gordon Messmer <gordon@dragonsdawn.net>")
    (color-theme-jonadabian "Jonadab" "Jonadab <jonadab@bright.net>")
    (color-theme-jonadabian-slate "Jonadabian Slate" "Jonadab <jonadab@bright.net>")
    (color-theme-katester "Katester" "Higgins_Walter@emc.com")
    (color-theme-late-night "Late Night" "Alex Schroeder <alex@gnu.org>")
    (color-theme-lawrence "Lawrence" "lawrence mitchell <wence@gmx.li>")
    (color-theme-lethe "Lethe" "Ivica Loncar <ivica.loncar@srk.fer.hr>")
    (color-theme-ld-dark "Linh Dang Dark" "Linh Dang <linhd@nortelnetworks.com>")
    (color-theme-marine "Marine" "Girish Bharadwaj <girishb@gbvsoft.com>")
    (color-theme-matrix "Matrix" "Walter Higgins <walterh@rocketmail.com>")
    (color-theme-marquardt "Marquardt" "Colin Marquardt <colin@marquardt-home.de>")
    (color-theme-midnight "Midnight" "Gordon Messmer <gordon@dragonsdawn.net>")
    (color-theme-mistyday "Misty Day" "Hari Kumar <Hari.Kumar@mtm.kuleuven.ac.be>")
    (color-theme-montz "Montz" "Brady Montz <bradym@becomm.com>")
    (color-theme-oswald "Oswald" "Tom Oswald <toswald@sharplabs.com>")
    (color-theme-parus "Parus" "Jon K Hellan <hellan@acm.org>")
    (color-theme-pierson "Pierson" "Dan L. Pierson <dan@sol.control.com>")
    (color-theme-ramangalahy "Ramangalahy" "Solofo Ramangalahy <solofo@irisa.fr>")
    (color-theme-raspopovic "Raspopovic" "Pedja Raspopovic <pedja@lsil.com>")
    (color-theme-renegade "Renegade" "Dave Benjamin <ramen@ramenfest.com>")
    (color-theme-resolve "Resolve" "Damien Elmes <resolve@repose.cx>")
    (color-theme-retro-green "Retro Green" "Alex Schroeder <alex@gnu.org>")
    (color-theme-retro-orange "Retro Orange" "Alex Schroeder <alex@gnu.org>")
    (color-theme-robin-hood "Robin Hood" "Alex Schroeder <alex@gnu.org>")
    (color-theme-rotor "Rotor" "Jinwei Shen <shenjw@wam.umd.edu>")
    (color-theme-ryerson "Ryerson" "Luis Fernandes <elf@ee.ryerson.ca>")
    (color-theme-salmon-diff "Salmon Diff" "Alex Schroeder <alex@gnu.org>" t)
    (color-theme-salmon-font-lock "Salmon Font-Lock" "Alex Schroeder <alex@gnu.org>" t)
    (color-theme-scintilla "Scintilla" "Gordon Messmer <gordon@dragonsdawn.net>")
    (color-theme-shaman "Shaman" "shaman@interdon.net")
    (color-theme-sitaramv-nt "Sitaram NT"
			     "Sitaram Venkatraman <sitaramv@loc251.tandem.com>")
    (color-theme-sitaramv-solaris "Sitaram Solaris"
				  "Sitaram Venkatraman <sitaramv@loc251.tandem.com>")
    (color-theme-snow "Snow" "Nicolas Rist <Nicolas.Rist@alcatel.de>")
    (color-theme-snowish "Snowish" "Girish Bharadwaj <girishb@gbvsoft.com>")
    (color-theme-standard-ediff "Standard Ediff" "Emacs Team, added by Alex Schroeder <alex@gnu.org>" t)
    (color-theme-standard "Standard Emacs 20" "Emacs Team, added by Alex Schroeder <alex@gnu.org>")
    (color-theme-emacs-21 "Standard Emacs 21" "Emacs Team, added by Alex Schroeder <alex@gnu.org>")
    (color-theme-emacs-nw "Standard Emacs 21 No Window" "Emacs Team, added by D. Goel <deego@gnufans.org>")
    (color-theme-xemacs "Standard XEmacs" "XEmacs Team, added by Alex Schroeder <alex@gnu.org>")
    (color-theme-subtle-blue "Subtle Blue" "Chris McMahan <cmcmahan@one.net>")
    (color-theme-subtle-hacker "Subtle Hacker" "Colin Walters <levanti@verbum.org>")
    (color-theme-taming-mr-arneson "Taming Mr Arneson" "Erik Arneson <erik@aarg.net>")
    (color-theme-taylor "Taylor" "Art Taylor <reeses@hemisphere.org>")
    (color-theme-tty-dark "TTY Dark" "O Polite <m2@plusseven.com>")
    (color-theme-vim-colors "Vim Colors" "Michael Soulier <msoulier@biryani.nssg.mitel.com>")
    (color-theme-whateveryouwant "Whateveryouwant" "Fabien Penso <penso@linuxfr.org>, color by Scott Jaderholm <scott@jaderholm.com>")
    (color-theme-wheat "Wheat" "Alex Schroeder <alex@gnu.org>")
    (color-theme-pok-wob "White On Black" "S. Pokrovsky <pok@nbsp.nsk.su>")
    (color-theme-pok-wog "White On Grey" "S. Pokrovsky <pok@nbsp.nsk.su>")
    (color-theme-word-perfect "WordPerfect" "Thomas Gehrlein <Thomas.Gehrlein@t-online.de>")
    (color-theme-xp "XP" "Girish Bharadwaj <girishb@gbvsoft.com>"))
  "List of color themes.

Each THEME is itself a three element list (FUNC NAME MAINTAINER &optional LIBRARY).

FUNC is a color theme function which does the setup.  The function
FUNC may call `color-theme-install'.  The color theme function may be
interactive.

NAME is the name of the theme and MAINTAINER is the name and/or email of
the maintainer of the theme.

If LIBRARY is non-nil, the color theme will be considered a library and
may not be shown in the default menu.

If you defined your own color theme and want to add it to this list,
use something like this:

  (add-to-list 'color-themes '(color-theme-gnome2 \"Gnome2\" \"Alex\"))")

;;; Functions

(defun color-theme-backup-original-values ()
  "Back up the original `default-frame-alist'.
The values are stored in `color-theme-original-frame-alist' on
startup."
  (if (null color-theme-original-frame-alist)
      (setq color-theme-original-frame-alist
	    (color-theme-filter (frame-parameters (selected-frame))
				color-theme-legal-frame-parameters))))
(add-hook 'after-init-hook 'color-theme-backup-original-values)

;;;###autoload
(defun color-theme-select (&optional arg)
  "Displays a special buffer for selecting and installing a color theme.
With optional prefix ARG, this buffer will include color theme libraries
as well.  A color theme library is in itself not complete, it must be
used as part of another color theme to be useful.  Thus, color theme
libraries are mainly useful for color theme authors."
  (interactive "P")
  (unless color-theme-initialized (color-theme-initialize))
  (switch-to-buffer (get-buffer-create color-theme-buffer-name))
  (setq buffer-read-only nil)
  (erase-buffer)
  ;; recreate the snapshot if necessary
  (when (or (not (assq 'color-theme-snapshot color-themes))
	    (not (commandp 'color-theme-snapshot)))
    (fset 'color-theme-snapshot (color-theme-make-snapshot))
    (setq color-themes (delq (assq 'color-theme-snapshot color-themes)
			     color-themes)
	  color-themes (delq (assq 'bury-buffer color-themes)
			     color-themes)
	  color-themes (append '((color-theme-snapshot
				  "[Reset]" "Undo changes, if possible.")
				 (bury-buffer
				  "[Quit]" "Bury this buffer."))
			     color-themes)))
  (dolist (theme color-themes)
    (let ((func (nth 0 theme))
	  (name (nth 1 theme))
	  (author (nth 2 theme))
	  (library (nth 3 theme))
	  (desc))
      (when (or (not library) arg)
	(setq desc (format "%-23s %s" 
			   (if library (concat name " [lib]") name)
			   author))
	(put-text-property 0 (length desc) 'color-theme func desc)
	(put-text-property 0 (length name) 'face 'bold desc)
	(put-text-property 0 (length name) 'mouse-face 'highlight desc)
	(insert desc)
	(newline))))
  (goto-char (point-min))
  (setq buffer-read-only t)
  (set-buffer-modified-p nil)
  (color-theme-mode))

(when (require 'easymenu)
  (easy-menu-add-item nil color-theme-entry-path "--")
  (easy-menu-add-item  nil color-theme-entry-path
                       ["Color Themes" color-theme-select t]))

(defun color-theme-mode ()
  "Major mode to select and install color themes.

Use \\[color-theme-install-at-point] to install a color theme on all frames.
Use \\[color-theme-install-at-point-for-current-frame] to install a color theme for the current frame only.

The changes are applied on top of your current setup.  This is a
feature.

Some of the themes should be considered extensions to the standard color
theme: they modify only a limited number of faces and variables.  To
verify the final look of a color theme, install the standard color
theme, then install the other color theme.  This is a feature. It allows
you to mix several color themes.

Use \\[color-theme-describe] to read more about the color theme function at point.
If you want to install the color theme permanently, put the call to the
color theme function into your ~/.emacs:

    \(require 'color-theme)
    \(color-theme-gnome2)

If you worry about the size of color-theme.el: You are right.  Use
\\[color-theme-print] to print the current color theme and save the resulting buffer
as ~/.emacs-color-theme.  Now you can install only this specific color
theme in your .emacs:

    \(load-file \"~/.emacs-color-theme\")
    \(my-color-theme)

The Emacs menu is not affected by color themes within Emacs.  Depending
on the toolkit you used to compile Emacs, you might have to set specific
X ressources.  See the info manual for more information.  Here is an
example ~/.Xdefaults fragment:

    emacs*Background: DarkSlateGray
    emacs*Foreground: wheat

\\{color-theme-mode-map}

The color themes are listed in `color-themes', which see."
  (kill-all-local-variables)
  (setq major-mode 'color-theme-mode)
  (setq mode-name "Color Themes")
  (use-local-map color-theme-mode-map)
  (when (functionp 'goto-address); Emacs
    (goto-address))
  (run-hooks 'color-theme-mode-hook))

;;; Commands in Color Theme Selection mode

;;;###autoload
(defun color-theme-describe ()
  "Describe color theme listed at point.
This shows the documentation of the value of text-property color-theme
at point.  The text-property color-theme should be a color theme
function.  See `color-themes'."
  (interactive)
  (describe-function (get-text-property (point) 'color-theme)))

;;;###autoload
(defun color-theme-install-at-mouse (event)
  "Install color theme clicked upon using the mouse.
First argument EVENT is used to set point.  Then
`color-theme-install-at-point' is called."
  (interactive "e")
  (save-excursion
    (mouse-set-point event)
    (color-theme-install-at-point)))

;;;autoload
(defun color-theme-install-at-point ()
  "Install color theme at point.
This calls the value of the text-property `color-theme' at point.
The text-property `color-theme' should be a color theme function.
See `color-themes'."
  (interactive)
  (let ((func (get-text-property (point) 'color-theme)))
    ;; install theme
    (if func
	(funcall func))
    ;; If goto-address is being used, remove all overlays in the current
    ;; buffer and run it again.  The face used for the mail addresses in
    ;; the the color theme selection buffer is based on the variable
    ;; goto-address-mail-face.  Changes in that variable will not affect
    ;; existing overlays, however, thereby confusing users.
    (when (functionp 'goto-address); Emacs
      (dolist (o (overlays-in (point-min) (point-max)))
	(delete-overlay o))
      (goto-address))))

;;;###autoload
(defun color-theme-install-at-point-for-current-frame ()
  "Install color theme at point for current frame only.
Binds `color-theme-is-global' to nil and calls
`color-theme-install-at-point'."
  (interactive)
  (let ((color-theme-is-global nil))
    (color-theme-install-at-point)))



;; Taking a snapshot of the current color theme and pretty printing it.

(defun color-theme-filter (old-list regexp &optional exclude)
  "Filter OLD-LIST.
The resulting list will be newly allocated and contains only elements
with names matching REGEXP.  OLD-LIST may be a list or an alist.  If you
want to filter a plist, use `color-theme-alist' to convert your plist to
an alist, first.

If the optional argument EXCLUDE is non-nil, then the sense is
reversed: only non-matching elements will be retained."
  (let (elem new-list)
    (dolist (elem old-list)
      (setq name (symbol-name (if (listp elem) (car elem) elem)))
      (when (or (and (not exclude)
		     (string-match regexp name))
		(and exclude
		     (not (string-match regexp name))))
	;; Now make sure that if elem is a cons cell, and the cdr of
	;; that cons cell is a string, then we need a *new* string in
	;; the new list.  Having a new cons cell is of no use because
	;; modify-frame-parameters will modify this string, thus
	;; modifying our color theme functions!
	(when (and (consp elem)
		   (stringp (cdr elem)))
	  (setq elem (cons (car elem)
			   (copy-sequence (cdr elem)))))
	;; Now store elem
	(setq new-list (cons elem new-list))))
    new-list))

(defun color-theme-spec-filter (spec)
  "Filter the attributes in SPEC.
This makes sure that SPEC has the form ((t (PLIST ...))).
Only properties not in `color-theme-illegal-default-attributes'
are included in the SPEC returned."
  (let ((props (cadar spec))
	result prop val)
    (while props
      (setq prop (nth 0 props)
	    val (nth 1 props)
	    props (nthcdr 2 props))
      (unless (memq prop color-theme-illegal-default-attributes)
	(setq result (cons val (cons prop result)))))
    `((t ,(nreverse result)))))

;; (color-theme-spec-filter '((t (:background "blue3"))))
;; (color-theme-spec-filter '((t (:stipple nil :background "Black" :foreground "SteelBlue" :inverse-video nil :box nil :strike-through nil :overline nil :underline nil :slant normal :weight normal :width semi-condensed :family "misc-fixed"))))

(defun color-theme-plist-delete (plist prop)
  "Delete property PROP from property list PLIST by side effect.
This modifies PLIST."
  ;; deal with prop at the start
  (while (eq (car plist) prop)
    (setq plist (cddr plist)))
  ;; deal with empty plist
  (when plist
    (let ((lastcell (cdr plist))
	  (l (cddr plist)))
      (while l
	(if (eq (car l) prop)
	    (progn
	      (setq l (cddr l))
	      (setcdr lastcell l))
	  (setq lastcell (cdr l)
		l (cddr l))))))
  plist)

;; (color-theme-plist-delete '(a b c d e f g h) 'a)
;; (color-theme-plist-delete '(a b c d e f g h) 'b)
;; (color-theme-plist-delete '(a b c d e f g h) 'c)
;; (color-theme-plist-delete '(a b c d e f g h) 'g)
;; (color-theme-plist-delete '(a b c d c d e f g h) 'c)
;; (color-theme-plist-delete '(a b c d e f c d g h) 'c)

(if (or (featurep 'xemacs)
	(< emacs-major-version 21))
    (defalias 'color-theme-spec-compat 'identity)
  (defun color-theme-spec-compat (spec)
    "Filter the attributes in SPEC such that is is never invalid.
Example: Eventhough :bold works in Emacs, it is not recognized by
`customize-face' -- and then the face is uncustomizable.  This
function replaces a :bold attribute with the corresponding :weight
attribute, if there is no :weight, or deletes it.  This undoes the
doings of `color-theme-spec-canonical-font', more or less."
    (let ((props (cadar spec)))
      (when (plist-member props :bold)
	(setq props (color-theme-plist-delete props :bold))
	(unless (plist-member props :weight)
	  (setq props (plist-put props :weight 'bold))))
      (when (plist-member props :italic)
	(setq props (color-theme-plist-delete props :italic))
	(unless (plist-member props :slant)
	  (setq props (plist-put props :slant 'italic))))
      `((t ,props)))))

;; (color-theme-spec-compat '((t (:foreground "blue" :bold t))))
;; (color-theme-spec-compat '((t (:bold t :foreground "blue" :weight extra-bold))))
;; (color-theme-spec-compat '((t (:italic t :foreground "blue"))))
;; (color-theme-spec-compat '((t (:slant oblique :italic t :foreground "blue"))))

(defun color-theme-spec-canonical-font (atts)
  "Add :bold and :italic attributes if necessary."
  ;; add these to the front of atts -- this will keept the old value for
  ;; customize-face in Emacs 21.
  (when (and (memq (plist-get atts :weight)
		   '(ultra-bold extra-bold bold semi-bold))
	     (not (plist-get atts :bold)))
    (setq atts (cons :bold (cons t atts))))
  (when (and (not (memq (plist-get atts :slant)
			'(normal nil)))
	     (not (plist-get atts :italic)))
    (setq atts (cons :italic (cons t atts))))
  atts)
;; (color-theme-spec-canonical-font (color-theme-face-attr-construct 'bold (selected-frame)))
;; (defface foo '((t (:weight extra-bold))) "foo")
;; (color-theme-spec-canonical-font (color-theme-face-attr-construct 'foo (selected-frame)))
;; (face-spec-set 'foo '((t (:weight extra-bold))) nil)
;; (face-spec-set 'foo '((t (:bold t))) nil)
;; (face-spec-set 'foo '((t (:bold t :weight extra-bold))) nil)

;; Handle :height according to NEWS file for Emacs 21
(defun color-theme-spec-resolve-height (old new)
  "Return the new height given OLD and NEW height.
OLD is the current setting, NEW is the setting inherited from."
  (cond ((not old)
	 new)
	((integerp old)
	 old)
	((and (floatp old)
	      (integerp new))
	 (round (* old new)))
	((and (floatp old)
	      (floatp new))
	 (* old new))
	((and (functionp old)
	      (integerp new))
	 (round (funcall old new)))
	((and (functionp old)
	      (float new))
	 `(lambda (f) (* (funcall ,old f) ,new)))
	((and (functionp old)
	      (functionp new))
	 `(lambda (f) (* (funcall ,old (funcall ,new f)))))
	(t
	 (error "Illegal :height attributes: %S or %S" old new))))
;; (color-theme-spec-resolve-height 12 1.2)
;; (color-theme-spec-resolve-height 1.2 1.2)
;; (color-theme-spec-resolve-height 1.2 12)
;; (color-theme-spec-resolve-height 1.2 'foo)
;; (color-theme-spec-resolve-height (lambda (f) (* 2 f)) 5)
;; (color-theme-spec-resolve-height (lambda (f) (* 2 f)) 2.0)
;; the following lambda is the result from the above calculation
;; (color-theme-spec-resolve-height (lambda (f) (* (funcall (lambda (f) (* 2 f)) f) 2.0)) 5)

(defun color-theme-spec-resolve-inheritance (atts)
  "Resolve all occurences of the :inherit attribute."
  (let ((face (plist-get atts :inherit)))
    ;; From the Emacs 21 NEWS file: "Attributes from inherited faces are
    ;; merged into the face like an underlying face would be." --
    ;; therefore properties of the inherited face only add missing
    ;; attributes.
    (when face
      ;; remove :inherit face from atts -- this assumes only one
      ;; :inherit attribute.
      (setq atts (delq ':inherit (delq face atts)))
      (let ((more-atts (color-theme-spec-resolve-inheritance
			(color-theme-face-attr-construct
			 face (selected-frame))))
	    att val)
	(while more-atts
	  (setq att (car more-atts)
		val (cadr more-atts)
		more-atts (cddr more-atts))
	  ;; Color-theme assumes that no value is ever 'unspecified.
	  (cond ((eq att ':height); cumulative effect!
		 (setq atts (plist-put atts 
				       ':height 
				       (color-theme-spec-resolve-height
					(plist-get atts att) 
					val))))
		;; Default: Only put if it has not been specified before.
		((not (plist-get atts att))
		 (setq atts (cons att (cons val atts))))
		  
))))
    atts))
;; (color-theme-spec-resolve-inheritance '(:bold t))
;; (color-theme-spec-resolve-inheritance '(:bold t :foreground "blue"))
;; (color-theme-face-attr-construct 'font-lock-comment-face (selected-frame))
;; (color-theme-spec-resolve-inheritance '(:bold t :inherit font-lock-comment-face))
;; (color-theme-spec-resolve-inheritance '(:bold t :foreground "red" :inherit font-lock-comment-face))
;; (color-theme-face-attr-construct 'Info-title-2-face (selected-frame))
;; (color-theme-face-attr-construct 'Info-title-3-face (selected-frame))
;; (color-theme-face-attr-construct 'Info-title-4-face (selected-frame))
;; (color-theme-spec-resolve-inheritance '(:inherit Info-title-2-face))

;; The :inverse-video attribute causes Emacs to swap foreground and
;; background colors, XEmacs does not.  Therefore, if anybody chooses
;; the inverse-video attribute, we 1. swap the colors ourselves in Emacs
;; and 2. we remove the inverse-video attribute in Emacs and XEmacs.
;; Inverse-video is only useful on a monochrome tty.
(defun color-theme-spec-maybe-invert (atts)
  "Remove the :inverse-video attribute from ATTS.
If ATTS contains :inverse-video t, remove it and swap foreground and
background color.  Return ATTS."
  (let ((inv (plist-get atts ':inverse-video)))
    (if inv
	(let (result att)
	  (while atts
	    (setq att (car atts)
		  atts (cdr atts))
	    (cond ((and (eq att :foreground) (not color-theme-xemacs-p))
		   (setq result (cons :background result)))
		  ((and (eq att :background) (not color-theme-xemacs-p))
		   (setq result (cons :foreground result)))
		  ((eq att :inverse-video)
		   (setq atts (cdr atts))); this prevents using dolist
		  (t
		   (setq result (cons att result)))))
	  (nreverse result))
      ;; else
      atts)))
;; (color-theme-spec-maybe-invert '(:bold t))
;; (color-theme-spec-maybe-invert '(:foreground "blue"))
;; (color-theme-spec-maybe-invert '(:background "red"))
;; (color-theme-spec-maybe-invert '(:inverse-video t))
;; (color-theme-spec-maybe-invert '(:inverse-video t :foreground "red"))
;; (color-theme-spec-maybe-invert '(:inverse-video t :background "red"))
;; (color-theme-spec-maybe-invert '(:inverse-video t :background "red" :foreground "blue" :bold t))
;; (color-theme-spec-maybe-invert '(:inverse-video nil :background "red" :foreground "blue" :bold t))

(defun color-theme-spec (face)
  "Return a list for FACE which has the form (FACE SPEC).
See `defface' for the format of SPEC.  In this case we use only one
DISPLAY, t, and determine ATTS using `color-theme-face-attr-construct'.
If ATTS is nil, (nil) is used  instead.

If ATTS contains :inverse-video t, we remove it and swap foreground and
background color using `color-theme-spec-maybe-invert'.  We do this
because :inverse-video is handled differently in Emacs and XEmacs.  We
will loose on a tty without colors, because in that situation,
:inverse-video means something."
  (let ((atts
	 (color-theme-spec-canonical-font
	  (color-theme-spec-maybe-invert
	   (color-theme-spec-resolve-inheritance
	    (color-theme-face-attr-construct face (selected-frame)))))))
    (if atts
	`(,face ((t ,atts)))
      `(,face ((t (nil)))))))

(defun color-theme-get-params ()
  "Return a list of frame parameter settings usable in a color theme.
Such an alist may be installed by `color-theme-install-frame-params'.  The
frame parameters returned must match `color-theme-legal-frame-parameters'."
  (let ((params (color-theme-filter (frame-parameters (selected-frame))
				    color-theme-legal-frame-parameters)))
    (sort params (lambda (a b) (string< (symbol-name (car a))
					(symbol-name (car b)))))))

(defun color-theme-get-vars ()
  "Return a list of variable settings usable in a color theme.
Such an alist may be installed by `color-theme-install-variables'.
The variable names must match `color-theme-legal-variables', and the
variable must be a user variable according to `user-variable-p'."
  (let ((vars)
	(val))
    (mapatoms (lambda (v)
		(and (boundp v)
		     (user-variable-p v)
		     (string-match color-theme-legal-variables
				   (symbol-name v))
		     (setq val (eval v))
		     (add-to-list 'vars (cons v val)))))
    (sort vars (lambda (a b) (string< (car a) (car b))))))

(defun color-theme-print-alist (alist)
  "Print ALIST."
  (insert "\n     " (if alist "(" "nil"))
  (dolist (elem alist)
    (when (= (preceding-char) ?\))
      (insert "\n      "))
    (prin1 elem (current-buffer)))
  (when (= (preceding-char) ?\)) (insert ")")))

(defun color-theme-get-faces ()
  "Return a list of faces usable in a color theme.
Such an alist may be installed by `color-theme-install-faces'.  The
faces returned must not match `color-theme-illegal-faces'."
  (let ((faces (color-theme-filter (face-list) color-theme-illegal-faces t)))
    ;; default face must come first according to comments in
    ;; custom-save-faces, the rest is to be sorted by name
    (cons 'default (sort (delq 'default faces) 'string-lessp))))

(defun color-theme-get-face-definitions ()
  "Return face settings usable in a color-theme."
  (let ((faces (color-theme-get-faces)))
    (mapcar 'color-theme-spec faces)))

(defun color-theme-print-faces (faces)
  "Print face settings for all faces returned by `color-theme-get-faces'."
  (when faces
    (insert "\n     "))
  (dolist (face faces)
    (when (= (preceding-char) ?\))
      (insert "\n     "))
    (prin1 face (current-buffer))))

(defun color-theme-reset-faces ()
  "Reset face settings for all faces returned by `color-theme-get-faces'."
  (let ((faces (color-theme-get-faces))
	(face) (spec) (entry)
	(frame (if color-theme-is-global nil (selected-frame))))
    (while faces
      (setq entry (color-theme-spec (car faces)))
      (setq face (nth 0 entry))
      (setq spec '((t (nil))))
      (setq faces (cdr faces))
      (if (functionp 'face-spec-reset-face)
	  (face-spec-reset-face face frame)
	(face-spec-set face spec frame)
	(if color-theme-is-global
	    (put face 'face-defface-spec spec))))))

(defun color-theme-print-theme (func doc params vars faces)
  "Print a theme into the current buffer.
FUNC is the function name, DOC the doc string, PARAMS the
frame parameters, VARS the variable bindings, and FACES
the list of faces and their specs."
  (insert "(defun " (symbol-name func) " ()\n"
	  "  \"" doc "\"\n"
	  "  (interactive)\n"
	  "  (color-theme-install\n"
	  "   '(" (symbol-name func))
  ;; alist of frame parameters
  (color-theme-print-alist params)
  ;; alist of variables
  (color-theme-print-alist vars)
  ;; remaining elements of snapshot: face specs
  (color-theme-print-faces faces)
  (insert ")))\n")
  (insert "(add-to-list 'color-themes '(" (symbol-name func) " "
          " \"THEME NAME\" \"YOUR NAME\"))")
  (goto-char (point-min)))

;;;###autoload
(defun color-theme-print (&optional buf)
  "Print the current color theme function.

You can contribute this function to <URL:news:gnu.emacs.sources> or
paste it into your .emacs file and call it.  That should recreate all
the settings necessary for your color theme.

Example:

    \(require 'color-theme)
    \(defun my-color-theme ()
      \"Color theme by Alex Schroeder, created 2000-05-17.\"
      \(interactive)
      \(color-theme-install
       '(...
	 ...
	 ...)))
    \(my-color-theme)

If you want to use a specific color theme function, you can call the
color theme function in your .emacs directly.

Example:

    \(require 'color-theme)
    \(color-theme-gnome2)"
  (interactive)
  (message "Pretty printing current color theme function...")
  (switch-to-buffer (if buf
			buf
		      (get-buffer-create "*Color Theme*")))
  (unless buf
    (setq buffer-read-only nil)
    (erase-buffer))
  ;; insert defun
  (insert "(eval-when-compile"
          "    (require 'color-theme))\n")
  (color-theme-print-theme 'my-color-theme
			   (concat "Color theme by "
				   (if (string= "" user-full-name)
				       (user-login-name)
				     user-full-name)
				   ", created " (format-time-string "%Y-%m-%d") ".")
			   (color-theme-get-params)
			   (color-theme-get-vars)
			   (mapcar 'color-theme-spec (color-theme-get-faces)))
  (unless buf
    (emacs-lisp-mode))
  (goto-char (point-min))
  (message "Pretty printing current color theme function... done"))

(defun color-theme-analyze-find-theme (code)
  "Find the sexpr that calls `color-theme-install'."
  (let (theme)
    (while (and (not theme) code)
      (when (eq (car code) 'color-theme-install)
	(setq theme code))
      (when (listp (car code))
	(setq theme (color-theme-analyze-find-theme (car code))))
      (setq code (cdr code)))
    theme))

;; (equal (color-theme-analyze-find-theme
;; 	'(defun color-theme-blue-eshell ()
;; 	   "Color theme for eshell faces only."
;; 	   (color-theme-install
;; 	    '(color-theme-blue-eshell
;; 	      nil
;; 	      (eshell-ls-archive-face ((t (:bold t :foreground "IndianRed"))))
;; 	      (eshell-ls-backup-face ((t (:foreground "Grey"))))))))
;;        '(color-theme-install
;; 	 (quote
;; 	  (color-theme-blue-eshell
;; 	   nil
;; 	   (eshell-ls-archive-face ((t (:bold t :foreground "IndianRed"))))
;; 	   (eshell-ls-backup-face ((t (:foreground "Grey")))))))))

(defun color-theme-analyze-add-face (a b regexp faces)
  "If only one of A or B are in FACES, the other is added, and FACES is returned.
If REGEXP is given, this is only done if faces contains a match for regexps."
  (when (or (not regexp)
	    (catch 'found
	      (dolist (face faces)
		(when (string-match regexp (symbol-name (car face)))
		  (throw 'found t)))))
    (let ((face-a (assoc a faces))
	  (face-b (assoc b faces)))
      (if (and face-a (not face-b))
	  (setq faces (cons (list b (nth 1 face-a))
			    faces))
	(if (and (not face-a) face-b)
	    (setq faces (cons (list a (nth 1 face-b))
			      faces))))))
  faces)

;; (equal (color-theme-analyze-add-face
;; 	'blue 'violet nil
;; 	'((blue ((t (:foreground "blue"))))
;; 	  (bold ((t (:bold t))))))
;;        '((violet ((t (:foreground "blue"))))
;; 	 (blue ((t (:foreground "blue"))))
;; 	 (bold ((t (:bold t))))))
;; (equal (color-theme-analyze-add-face
;; 	'violet 'blue nil
;; 	'((blue ((t (:foreground "blue"))))
;; 	  (bold ((t (:bold t))))))
;;        '((violet ((t (:foreground "blue"))))
;; 	 (blue ((t (:foreground "blue"))))
;; 	 (bold ((t (:bold t))))))
;; (equal (color-theme-analyze-add-face
;; 	'violet 'blue "foo"
;; 	'((blue ((t (:foreground "blue"))))
;; 	  (bold ((t (:bold t))))))
;;        '((blue ((t (:foreground "blue"))))
;; 	 (bold ((t (:bold t))))))
;; (equal (color-theme-analyze-add-face
;; 	'violet 'blue "blue"
;; 	'((blue ((t (:foreground "blue"))))
;; 	  (bold ((t (:bold t))))))
;;        '((violet ((t (:foreground "blue"))))
;; 	 (blue ((t (:foreground "blue"))))
;; 	 (bold ((t (:bold t))))))

(defun color-theme-analyze-add-faces (faces)
  "Add missing faces to FACES and return it."
  ;; The most important thing is to add missing faces for the other
  ;; editor.  These are the most important faces to check.  The
  ;; following rules list two faces, A and B.  If either of the two is
  ;; part of the theme, the other must be, too.  The optional third
  ;; argument specifies a regexp.  Only if an existing face name
  ;; matches this regexp, is the rule applied.
  (let ((rules '((font-lock-builtin-face font-lock-reference-face)
		 (font-lock-doc-face font-lock-doc-string-face)
		 (font-lock-constant-face font-lock-preprocessor-face)
		 ;; In Emacs 21 `modeline' is just an alias for
		 ;; `mode-line'.  I recommend the use of
		 ;; `modeline' until further notice.
		 (modeline mode-line)
		 (modeline modeline-buffer-id)
		 (modeline modeline-mousable)
		 (modeline modeline-mousable-minor-mode)
		 (region primary-selection)
		 (region zmacs-region)
		 (font-lock-string-face dired-face-boring "^dired")
		 (font-lock-function-name-face dired-face-directory "^dired")
		 (default dired-face-executable "^dired")
		 (font-lock-warning-face dired-face-flagged "^dired")
		 (font-lock-warning-face dired-face-marked "^dired")
		 (default dired-face-permissions "^dired")
		 (default dired-face-setuid "^dired")
		 (default dired-face-socket "^dired")
		 (font-lock-keyword-face dired-face-symlink "^dired")
		 (tool-bar menu))))
    (dolist (rule rules)
      (setq faces (color-theme-analyze-add-face
		   (nth 0 rule) (nth 1 rule) (nth 2 rule) faces))))
  ;; The `fringe' face defines what the left and right borders of the
  ;; frame look like in Emacs 21.  To give them default fore- and
  ;; background colors, use (fringe ((t (nil)))) in your color theme.
  ;; Usually it makes more sense to choose a color slightly lighter or
  ;; darker from the default background.
  (unless (assoc 'fringe faces)
    (setq faces (cons '(fringe ((t (nil)))) faces)))
  ;; The tool-bar should not be part of the frame-parameters, since it
  ;; should not appear or disappear depending on the color theme.  The
  ;; apppearance of the toolbar, however, can be changed by the color
  ;; theme.  For Emacs 21, use the `tool-bar' face.  The easiest way
  ;; to do this is to give it the default fore- and background colors.
  ;; This can be achieved using (tool-bar ((t (nil)))) in the theme.
  ;; Usually it makes more sense, however, to provide the same colors
  ;; as used in the `menu' face, and to specify a :box attribute.  In
  ;; order to alleviate potential Emacs/XEmacs incompatibilities,
  ;; `toolbar' will be defined as an alias for `tool-bar' if it does
  ;; not exist, and vice-versa.  This is done eventhough the face
  ;; `toolbar' seems to have no effect on XEmacs.  If you look at
  ;; XEmacs lisp/faces.el, however, you will find that it is in fact
  ;; referenced for XPM stuff.
  (unless (assoc 'tool-bar faces)
    (setq faces (cons '(tool-bar ((t (nil)))) faces)))
  ;; Move the default face back to the front, and sort the rest.
  (unless (eq (caar faces) 'default)
    (let ((face (assoc 'default faces)))
      (setq faces (cons face
			(sort (delete face faces)
			      (lambda (a b)
				(string-lessp (car a) (car b))))))))
  faces)

(defun color-theme-analyze-remove-heights (faces)
  "Remove :height property where it is an integer and return FACES."
  ;; I don't recommend making font sizes part of a color theme.  Most
  ;; users would be surprised to see their font sizes change when they
  ;; install a color-theme.  Therefore, remove all :height attributes
  ;; if the value is an integer.  If the value is a float, this is ok
  ;; -- the value is relative to the default height.  One notable
  ;; exceptions is for a color-theme created for visually impaired
  ;; people.  These *must* use a larger font in order to be usable.
  (let (result)
    (dolist (face faces)
      (let ((props (cadar (nth 1 face))))
	(if (and (plist-member props :height)
		 (integerp (plist-get props :height)))
	    (setq props (color-theme-plist-delete props :height)
		  result (cons (list (car face) `((t ,props)))
			       result))
	  (setq result (cons face result)))))
    (nreverse result)))

;; (equal (color-theme-analyze-remove-heights
;; 	'((blue ((t (:foreground "blue" :height 2))))
;; 	  (bold ((t (:bold t :height 1.0))))))
;;        '((blue ((t (:foreground "blue"))))
;; 	 (bold ((t (:bold t :height 1.0))))))

;;;###autoload
(defun color-theme-analyze-defun ()
  "Once you have a color-theme printed, check for missing faces.
This is used by maintainers who receive a color-theme submission
and want to make sure it follows the guidelines by the color-theme
author."
  ;; The support for :foreground and :background attributes works for
  ;; Emacs 20 and 21 as well as for XEmacs.  :inverse-video is taken
  ;; care of while printing color themes.
  (interactive)
  ;; Parse the stuff and find the call to color-theme-install
  (save-excursion
    (save-restriction
      (narrow-to-defun)
      ;; define the function
      (eval-defun nil)
      (goto-char (point-min))
      (let* ((code (read (current-buffer)))
	     (theme (color-theme-canonic
		     (eval
		      (cadr
		       (color-theme-analyze-find-theme
			code)))))
	     (func (color-theme-function theme))
	     (doc (documentation func t))
	     (variables (color-theme-variables theme))
	     (faces (colo…