Rename from "thumbnails.el"; all instances of "thumbnails" changed to

"image-dired".

1 files changed, 2597 insertions, 0 deletions

diff --git a/lisp/image-dired.el b/lisp/image-dired.el
new file mode 100644
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--- /dev/null
+++ b/lisp/image-dired.el
@@ -0,0 +1,2597 @@
+;;; image-dired.el --- use dired to browse and manipulate your images
+;;
+;; Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
+;;
+;; Version: 0.4.11
+;; Keywords: multimedia
+;; Author: Mathias Dahl <mathias.rem0veth1s.dahl@gmail.com>
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
+
+;;; Commentary:
+;;
+;; BACKGROUND
+;; ==========
+;;
+;;  I needed a program to browse, organize and tag my pictures.  I got
+;; tired of the old gallery program I used as it did not allow
+;; multi-file operations easily.  Also, it put things out of my
+;; control.  Image viewing programs I tested did not allow multi-file
+;; operations or did not do what I wanted it to.
+;;
+;;  So, I got the idea to use the wonderful functionality of Emacs and
+;; `dired' to do it.  It would allow me to do almost anything I wanted,
+;; which is basically just to browse all my pictures in an easy way,
+;; letting me manipulate and tag them in various ways.  `dired' already
+;; provide all the file handling and navigation facilities; I only
+;; needed to add some functions to display the images.
+;;
+;;  I briefly tried out thumbs.el, and although it seemed more
+;; powerful than this package, it did not work the way I wanted to.  It
+;; was too slow to created thumbnails of all files in a directory (I
+;; currently keep all my 2000+ images in the same directory) and
+;; browsing the thumbnail buffer was slow too.  image-dired.el will not
+;; create thumbnails until they are needed and the browsing is done
+;; quickly and easily in dired.  I copied a great deal of ideas and
+;; code from there though... :)
+;;
+;;  `image-dired' stores the thumbnail files in `image-dired-dir'
+;; using the file name format ORIGNAME.thumb.ORIGEXT.  For example
+;; ~/.emacs.d/image-dired/myimage01.thumb.jpg.  The "database" is for
+;; now just a plain text file with the following format:
+;;
+;; file-name-non-directory;comment:comment-text;tag1;tag2;tag3;...;tagN
+;;
+;;
+;; PREREQUISITES
+;; =============
+;;
+;; * The ImageMagick package.  Currently, `convert' and `mogrify' are
+;; used.  Find it here: http://www.imagemagick.org.
+;;
+;; * For non-lossy rotation of JPEG images, the JpegTRAN program is
+;; needed.
+;;
+;; * For `image-dired-get-exif-data' and `image-dired-write-exif-data' to work,
+;; the command line tool `exiftool' is needed.  It can be found here:
+;; http://www.sno.phy.queensu.ca/~phil/exiftool/.  These two functions
+;; are, among other things, used for writing comments to image files
+;; using `image-dired-thumbnail-set-image-description' and to create
+;; "unique" file names using `image-dired-get-exif-file-name' (used by
+;; `image-dired-copy-with-exif-file-name').
+;;
+;;
+;; USAGE
+;; =====
+;;
+;; This information has been moved to the manual.  Type `C-h r' to open
+;; the Emacs manual and go to the node Thumbnails by typing `g
+;; Thumbnails RET'.
+;;
+;; Quickstart: M-x image-dired RET DIRNAME RET
+;;
+;; where DIRNAME is a directory containing image files.
+;;
+;; LIMITATIONS
+;; ===========
+;;
+;; * Supports all image formats that Emacs and convert supports, but
+;; the thumbnails are hard-coded to JPEG format.
+;;
+;; * WARNING: The "database" format used might be changed so keep a
+;; backup of `image-dired-db-file' when testing new versions.
+;;
+;;
+;; TODO
+;; ====
+;;
+;; * Support gallery creation when using per-directory thumbnail
+;; storage.
+;;
+;; * Some sort of auto-rotate function based on rotate info in the
+;; EXIF data.
+;;
+;; * Check if exiftool exist before trying to call it to give a better
+;; error message.
+;;
+;; * Investigate if it is possible to also write the tags to the image
+;; files.
+;;
+;; * From thumbs.el: Add an option for clean-up/max-size functionality
+;;   for thumbnail directory.
+;;
+;; * From thumbs.el: Add setroot function.
+;;
+;; * From thumbs.el: Add image resizing, if useful (image-dired's automatic
+;;  "image fit" might be enough)
+;;
+;; * From thumbs.el: Add the "modify" commands (emboss, negate,
+;;   monochrome etc).
+;;
+;; * Asynchronous creation of thumbnails.
+;;
+;; * Add `image-dired-display-thumbs-ring' and functions to cycle that.  Find
+;; out which is best, saving old batch just before inserting new, or
+;; saving the current batch in the ring when inserting it.  Adding it
+;; probably needs rewriting `image-dired-display-thumbs' to be more general.
+;;
+;; * Find some way of toggling on and off really nice keybindings in
+;; dired (for example, using C-n or <down> instead of C-S-n).  Richard
+;; suggested that we could keep C-t as prefix for image-dired commands
+;; as it is currently not used in dired.  He also suggested that
+;; `dired-next-line' and `dired-previous-line' figure out if
+;; image-dired is enabled in the current buffer and, if it is, call
+;; `image-dired-dired-next-line' and
+;; `image-dired-dired-previous-line', respectively.  Update: This is
+;; partly done; some bindings have now been added to dired.
+;;
+;; * Enhanced gallery creation with basic CSS-support and pagination
+;; of tag pages with many pictures.
+;;
+;; * Rewrite `image-dired-modify-mark-on-thumb-original-file' to be
+;; less ugly.
+;;
+;; * In some way keep track of buffers and windows and stuff so that
+;; it works as the user expects.
+;;
+;; * More/better documentation
+;;
+;;
+;;; Code:
+
+(require 'dired)
+(require 'format-spec)
+(require 'widget)
+
+(eval-when-compile
+  (require 'wid-edit))
+
+(defgroup image-dired nil
+  "Use dired to browse your images as thumbnails, and more."
+  :prefix "image-dired-"
+  :group 'multimedia)
+
+(defcustom image-dired-dir "~/.emacs.d/image-dired/"
+  "Directory where thumbnail images are stored."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-thumbnail-storage 'use-image-dired-dir
+  "How to store image-dired's thumbnail files.
+Image-Dired can store thumbnail files in one of two ways and this is
+controlled by this variable.  \"Use image-dired dir\" means that the
+thumbnails are stored in a central directory.  \"Per directory\"
+means that each thumbnail is stored in a subdirectory called
+\".image-dired\" in the same directory where the image file is.
+\"Thumbnail Managing Standard\" means that the thumbnails are
+stored and generated according to the Thumbnail Managing Standard
+that allows sharing of thumbnails across different programs."
+  :type '(choice :tag "How to store thumbnail files"
+                 (const :tag "Thumbnail Managing Standard" standard)
+                 (const :tag "Use image-dired-dir" use-image-dired-dir)
+                 (const :tag "Per-directory" per-directory))
+  :group 'image-dired)
+
+(defcustom image-dired-db-file "~/.emacs.d/image-dired/.image-dired_db"
+  "Database file where file names and their associated tags are stored."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-temp-image-file "~/.emacs.d/image-dired/.image-dired_temp"
+  "Name of temporary image file used by various commands."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-gallery-dir "~/.emacs.d/image-dired/.image-dired_gallery"
+  "Directory to store generated gallery html pages.
+This path needs to be \"shared\" to the public so that it can access
+the index.html page that image-dired creates."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-gallery-image-root-url
+"http://your.own.server/image-diredpics"
+  "URL where the full size images are to be found.
+Note that this path has to be configured in your web server.  Image-Dired
+expects to find pictures in this directory."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-gallery-thumb-image-root-url
+"http://your.own.server/image-diredthumbs"
+  "URL where the thumbnail images are to be found.
+Note that this path has to be configured in your web server.  Image-Dired
+expects to find pictures in this directory."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-create-thumbnail-program
+  "convert"
+  "Executable used to create thumbnail.
+Used together with `image-dired-cmd-create-thumbnail-options'."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-create-thumbnail-options
+  "%p -size %wx%h \"%f\" -resize %wx%h +profile \"*\" jpeg:\"%t\""
+  "Format of command used to create thumbnail image.
+Available options are %p which is replaced by
+`image-dired-cmd-create-thumbnail-program', %w which is replaced by
+`image-dired-thumb-width', %h which is replaced by `image-dired-thumb-height',
+%f which is replaced by the file name of the original image and %t
+which is replaced by the file name of the thumbnail file."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-create-temp-image-program
+  "convert"
+  "Executable used to create temporary image.
+Used together with `image-dired-cmd-create-temp-image-options'."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-create-temp-image-options
+  "%p -size %wx%h \"%f\" -resize %wx%h +profile \"*\" jpeg:\"%t\""
+  "Format of command used to create temporary image for display window.
+Available options are %p which is replaced by
+`image-dired-cmd-create-temp-image-program', %w and %h which is replaced by
+the calculated max size for width and height in the image display window,
+%f which is replaced by the file name of the original image and %t which
+is replaced by the file name of the temporary file."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-pngnq-program (executable-find "pngnq")
+  "The file name of the `pngnq' program.
+It quantizes colors of PNG images down to 256 colors."
+  :type '(choice (const :tag "Not Set" nil) string)
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-pngcrush-program (executable-find "pngcrush")
+  "The file name of the `pngcrush' program.
+It optimizes the compression of PNG images.  Also it adds PNG textual chunks
+with the information required by the Thumbnail Managing Standard."
+  :type '(choice (const :tag "Not Set" nil) string)
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-create-standard-thumbnail-command
+  (concat
+   image-dired-cmd-create-thumbnail-program " "
+   "-size %wx%h \"%f\" "
+   (unless (or image-dired-cmd-pngcrush-program image-dired-cmd-pngnq-program)
+     (concat
+      "-set \"Thumb::MTime\" \"%m\" "
+      "-set \"Thumb::URI\" \"file://%f\" "
+      "-set \"Description\" \"Thumbnail of file://%f\" "
+      "-set \"Software\" \"" (emacs-version) "\" "))
+   "-thumbnail %wx%h png:\"%t\""
+   (if image-dired-cmd-pngnq-program
+       (concat
+        " ; " image-dired-cmd-pngnq-program " -f \"%t\""
+        (unless image-dired-cmd-pngcrush-program
+          " ; mv %q %t")))
+   (if image-dired-cmd-pngcrush-program
+       (concat
+        (unless image-dired-cmd-pngcrush-program
+          " ; cp %t %q")
+        " ; " image-dired-cmd-pngcrush-program " -q "
+        "-text b \"Description\" \"Thumbnail of file://%f\" "
+        "-text b \"Software\" \"" (emacs-version) "\" "
+        ;; "-text b \"Thumb::Image::Height\" \"%oh\" "
+        ;; "-text b \"Thumb::Image::Mimetype\" \"%mime\" "
+        ;; "-text b \"Thumb::Image::Width\" \"%ow\" "
+        "-text b \"Thumb::MTime\" \"%m\" "
+        ;; "-text b \"Thumb::Size\" \"%b\" "
+        "-text b \"Thumb::URI\" \"file://%f\" "
+        "%q %t"
+        " ; rm %q")))
+  "Command to create thumbnails according to the Thumbnail Managing Standard."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-rotate-thumbnail-program
+  "mogrify"
+  "Executable used to rotate thumbnail.
+Used together with `image-dired-cmd-rotate-thumbnail-options'."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-rotate-thumbnail-options
+  "%p -rotate %d \"%t\""
+  "Format of command used to rotate thumbnail image.
+Available options are %p which is replaced by
+`image-dired-cmd-rotate-thumbnail-program', %d which is replaced by the
+number of (positive) degrees to rotate the image, normally 90 or 270
+\(for 90 degrees right and left), %t which is replaced by the file name
+of the thumbnail file."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-rotate-original-program
+  "jpegtran"
+  "Executable used to rotate original image.
+Used together with `image-dired-cmd-rotate-original-options'."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-rotate-original-options
+  "%p -rotate %d -copy all -outfile %t \"%o\""
+  "Format of command used to rotate original image.
+Available options are %p which is replaced by
+`image-dired-cmd-rotate-original-program', %d which is replaced by the
+number of (positive) degrees to rotate the image, normally 90 or
+270 \(for 90 degrees right and left), %o which is replaced by the
+original image file name and %t which is replaced by
+`image-dired-temp-image-file'."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-temp-rotate-image-file
+  "~/.emacs.d/image-dired/.image-dired_rotate_temp"
+  "Temporary file for rotate operations."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-rotate-original-ask-before-overwrite t
+  "Confirm overwrite of original file after rotate operation.
+If non-nil, ask user for confirmation before overwriting the
+original file with `image-dired-temp-rotate-image-file'."
+  :type 'boolean
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-write-exif-data-program
+  "exiftool"
+  "Program used to write EXIF data to image.
+Used together with `image-dired-cmd-write-exif-data-options'."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-write-exif-data-options
+  "%p -%t=\"%v\" \"%f\""
+  "Format of command used to write EXIF data.
+Available options are %p which is replaced by
+`image-dired-cmd-write-exif-data-program', %f which is replaced by the
+image file name, %t which is replaced by the tag name and %v
+which is replaced by the tag value."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-read-exif-data-program
+  "exiftool"
+  "Program used to read EXIF data to image.
+Used together with `image-dired-cmd-read-exif-data-program-options'."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-cmd-read-exif-data-options
+  "%p -s -s -s -%t \"%f\""
+  "Format of command used to read EXIF data.
+Available options are %p which is replaced by
+`image-dired-cmd-write-exif-data-options', %f which is replaced
+by the image file name and %t which is replaced by the tag name."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-gallery-hidden-tags
+  (list "private" "hidden" "pending")
+  "List of \"hidden\" tags.
+Used by `image-dired-gallery-generate' to leave out \"hidden\" images."
+  :type '(repeat string)
+  :group 'image-dired)
+
+(defcustom image-dired-thumb-size (if (eq 'standard image-dired-thumbnail-storage) 128 100)
+  "Size of thumbnails, in pixels.
+This is the default size for both `image-dired-thumb-width' and `image-dired-thumb-height'."
+  :type 'integer
+  :group 'image-dired)
+
+(defcustom image-dired-thumb-width image-dired-thumb-size
+  "Width of thumbnails, in pixels."
+  :type 'integer
+  :group 'image-dired)
+
+(defcustom image-dired-thumb-height image-dired-thumb-size
+  "Height of thumbnails, in pixels."
+  :type 'integer
+  :group 'image-dired)
+
+(defcustom image-dired-thumb-relief 2
+  "Size of button-like border around thumbnails."
+  :type 'integer
+  :group 'image-dired)
+
+(defcustom image-dired-thumb-margin 2
+  "Size of the margin around thumbnails.
+This is where you see the cursor."
+  :type 'integer
+  :group 'image-dired)
+
+(defcustom image-dired-line-up-method 'dynamic
+  "Default method for line-up of thumbnails in thumbnail buffer.
+Used by `image-dired-display-thumbs' and other functions that needs to
+line-up thumbnails.  Dynamic means to use the available width of the
+window containing the thumbnail buffer, Fixed means to use
+`image-dired-thumbs-per-row', Interactive is for asking the user, and No
+line-up means that no automatic line-up will be done."
+  :type '(choice :tag "Default line-up method"
+                 (const :tag "Dynamic" dynamic)
+                 (const :tag "Fixed" fixed)
+                 (const :tag "Interactive" interactive)
+                 (const :tag "No line-up" none))
+  :group 'image-dired)
+
+(defcustom image-dired-thumbs-per-row 3
+  "Number of thumbnails to display per row in thumb buffer."
+  :type 'integer
+  :group 'image-dired)
+
+(defcustom image-dired-display-window-width-correction 1
+  "Number to be used to correct image display window width.
+Change if the default (1) does not work (i.e. if the image does not
+completely fit)."
+  :type 'integer
+  :group 'image-dired)
+
+(defcustom image-dired-display-window-height-correction 0
+  "Number to be used to correct image display window height.
+Change if the default (0) does not work (i.e. if the image does not
+completely fit)."
+  :type 'integer
+  :group 'image-dired)
+
+(defcustom image-dired-track-movement t
+  "The current state of the tracking and mirroring.
+For more information, see the documentation for
+`image-dired-toggle-movement-tracking'."
+  :type 'boolean
+  :group 'image-dired)
+
+(defcustom image-dired-append-when-browsing nil
+  "Append thumbnails in thumbnail buffer when browsing.
+If non-nil, using `image-dired-next-line-and-display' and
+`image-dired-previous-line-and-display' will leave a trail of thumbnail
+images in the thumbnail buffer.  If you enable this and want to clean
+the thumbnail buffer because it is filled with too many thumbmnails,
+just call `image-dired-display-thumb' to display only the image at point.
+This value can be toggled using `image-dired-toggle-append-browsing'."
+  :type 'boolean
+  :group 'image-dired)
+
+(defcustom image-dired-dired-disp-props t
+  "If non-nil, display properties for dired file when browsing.
+Used by `image-dired-next-line-and-display',
+`image-dired-previous-line-and-display' and `image-dired-mark-and-display-next'.
+If the database file is large, this can slow down image browsing in
+dired and you might want to turn it off."
+  :type 'boolean
+  :group 'image-dired)
+
+(defcustom image-dired-display-properties-format "%b: %f (%t): %c"
+  "Display format for thumbnail properties.
+%b is replaced with associated dired buffer name, %f with file name
+\(without path) of original image file, %t with the list of tags and %c
+with the comment."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-external-viewer
+  ;; TODO: Use mailcap, dired-guess-shell-alist-default,
+  ;; dired-view-command-alist.
+  (cond ((executable-find "display"))
+        ((executable-find "xli"))
+        ((executable-find "qiv") "qiv -t"))
+  "Name of external viewer.
+Including parameters.  Used when displaying original image from
+`image-dired-thumbnail-mode'."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-main-image-directory "~/pics/"
+  "Name of main image directory, if any.
+Used by `image-dired-copy-with-exif-file-name'."
+  :type 'string
+  :group 'image-dired)
+
+(defcustom image-dired-show-all-from-dir-max-files 50
+  "Maximum number of files to show using `image-dired-show-all-from-dir'.
+before warning the user."
+  :type 'integer
+  :group 'image-dired)
+
+(defun image-dired-dir ()
+  "Return the current thumbnails directory (from variable `image-dired-dir').
+Create the thumbnails directory if it does not exist."
+  (let ((image-dired-dir (file-name-as-directory
+                    (expand-file-name image-dired-dir))))
+    (unless (file-directory-p image-dired-dir)
+      (make-directory image-dired-dir t)
+      (message "Creating thumbnails directory"))
+    image-dired-dir))
+
+(defun image-dired-insert-image (file type relief margin)
+  "Insert image FILE of image TYPE, using RELIEF and MARGIN, at point."
+
+  (let ((i `(image :type ,type
+                   :file ,file
+                   :relief ,relief
+                   :margin ,margin)))
+    (insert-image i)))
+
+(defun image-dired-get-thumbnail-image (file)
+  "Return the image descriptor for a thumbnail of image file FILE."
+  (unless (string-match (image-file-name-regexp) file)
+    (error "%s is not a valid image file" file))
+  (let ((thumb-file (image-dired-thumb-name file)))
+    (unless (and (file-exists-p thumb-file)
+                 (<= (float-time (nth 5 (file-attributes file)))
+                     (float-time (nth 5 (file-attributes thumb-file)))))
+      (image-dired-create-thumb file thumb-file))
+    (create-image thumb-file)
+;;     (list 'image :type 'jpeg
+;;           :file thumb-file
+;;        :relief image-dired-thumb-relief :margin image-dired-thumb-margin)
+    ))
+
+(defun image-dired-insert-thumbnail (file original-file-name
+                                    associated-dired-buffer)
+  "Insert thumbnail image FILE.
+Add text properties ORIGINAL-FILE-NAME and ASSOCIATED-DIRED-BUFFER."
+  (let (beg end)
+    (setq beg (point))
+    (image-dired-insert-image file
+                        ;; TODO: this should depend on the real file type
+                        (if (eq 'standard image-dired-thumbnail-storage)
+                            'png 'jpeg)
+                        image-dired-thumb-relief
+                        image-dired-thumb-margin)
+    (setq end (point))
+    (add-text-properties
+     beg end
+     (list 'image-dired-thumbnail t
+           'original-file-name original-file-name
+           'associated-dired-buffer associated-dired-buffer
+           'tags (image-dired-list-tags original-file-name)
+           'mouse-face 'highlight
+           'comment (image-dired-get-comment original-file-name)))))
+
+(defun image-dired-thumb-name (file)
+  "Return thumbnail file name for FILE.
+Depending on the value of `image-dired-thumbnail-storage', the file
+name will vary.  For central thumbnail file storage, make a
+MD5-hash of the image file's directory name and add that to make
+the thumbnail file name unique.  For per-directory storage, just
+add a subdirectory.  For standard storage, produce the file name
+according to the Thumbnail Managing Standard."
+  (cond ((eq 'standard image-dired-thumbnail-storage)
+         (expand-file-name
+          (concat "~/.thumbnails/normal/"
+                  (md5 (concat "file://" (expand-file-name file))) ".png")))
+        ((eq 'use-image-dired-dir image-dired-thumbnail-storage)
+         (let* ((f (expand-file-name file))
+                (md5-hash
+                 ;; Is MD5 hashes fast enough? The checksum of a
+                 ;; thumbnail file name need not be that
+                 ;; "cryptographically" good so a faster one could
+                 ;; be used here.
+                 (md5 (file-name-as-directory (file-name-directory f)))))
+           (format "%s%s%s.thumb.%s"
+                   (file-name-as-directory (expand-file-name (image-dired-dir)))
+                   (file-name-sans-extension (file-name-nondirectory f))
+                   (if md5-hash (concat "_" md5-hash) "")
+                   (file-name-extension f))))
+        ((eq 'per-directory image-dired-thumbnail-storage)
+         (let ((f (expand-file-name file)))
+           (format "%s.image-dired/%s.thumb.%s"
+                   (file-name-directory f)
+                   (file-name-sans-extension (file-name-nondirectory f))
+                   (file-name-extension f))))))
+
+(defun image-dired-create-thumb (original-file thumbnail-file)
+  "For ORIGINAL-FILE, create thumbnail image named THUMBNAIL-FILE."
+  (let* ((width (int-to-string image-dired-thumb-width))
+         (height (int-to-string image-dired-thumb-height))
+         (modif-time (format "%.0f" (float-time (nth 5 (file-attributes
+                                                        original-file)))))
+         (thumbnail-nq8-file (replace-regexp-in-string ".png\\'" "-nq8.png"
+                                                       thumbnail-file))
+         (command
+          (format-spec
+           (if (eq 'standard image-dired-thumbnail-storage)
+               image-dired-cmd-create-standard-thumbnail-command
+             image-dired-cmd-create-thumbnail-options)
+           (list
+            (cons ?p image-dired-cmd-create-thumbnail-program)
+            (cons ?w width)
+            (cons ?h height)
+            (cons ?m modif-time)
+            (cons ?f original-file)
+            (cons ?q thumbnail-nq8-file)
+            (cons ?t thumbnail-file))))
+         thumbnail-dir)
+    (when (not (file-exists-p
+                (setq thumbnail-dir (file-name-directory thumbnail-file))))
+      (message "Creating thumbnail directory.")
+      (make-directory thumbnail-dir))
+    (call-process shell-file-name nil nil nil shell-command-switch command)))
+
+;;;###autoload
+(defun image-dired-dired-insert-marked-thumbs ()
+  "Insert thumbnails before file names of marked files in the dired buffer."
+  (interactive)
+  (dired-map-over-marks
+   (let* ((image-pos (dired-move-to-filename))
+          (image-file (dired-get-filename))
+          (thumb-file (image-dired-get-thumbnail-image image-file))
+          overlay)
+     ;; If image is not already added, then add it.
+     (unless (delq nil (mapcar (lambda (o) (overlay-get o 'put-image))
+                               ;; Can't use (overlays-at (point)), BUG?
+                               (overlays-in (point) (1+ (point)))))
+       (put-image thumb-file image-pos)
+       (setq
+        overlay
+        (car (delq nil (mapcar (lambda (o) (and (overlay-get o 'put-image) o))
+                               (overlays-in (point) (1+ (point)))))))
+       (overlay-put overlay 'image-file image-file)
+       (overlay-put overlay 'thumb-file thumb-file)))
+   nil)
+  (add-hook 'dired-after-readin-hook 'image-dired-dired-after-readin-hook nil t))
+
+(defun image-dired-dired-after-readin-hook ()
+  "Relocate existing thumbnail overlays in dired buffer after reverting.
+Move them to their corresponding files if they are still exist.
+Otherwise, delete overlays."
+  (mapc (lambda (overlay)
+          (when (overlay-get overlay 'put-image)
+            (let* ((image-file (overlay-get overlay 'image-file))
+                   (image-pos (dired-goto-file image-file)))
+              (if image-pos
+                  (move-overlay overlay image-pos image-pos)
+                (delete-overlay overlay)))))
+        (overlays-in (point-min) (point-max))))
+
+(defun image-dired-next-line-and-display ()
+  "Move to next dired line and display thumbnail image."
+  (interactive)
+  (dired-next-line 1)
+  (image-dired-display-thumbs
+   t (or image-dired-append-when-browsing nil) t)
+  (if image-dired-dired-disp-props
+      (image-dired-dired-display-properties)))
+
+(defun image-dired-previous-line-and-display ()
+  "Move to previous dired line and display thumbnail image."
+  (interactive)
+  (dired-previous-line 1)
+  (image-dired-display-thumbs
+   t (or image-dired-append-when-browsing nil) t)
+  (if image-dired-dired-disp-props
+      (image-dired-dired-display-properties)))
+
+(defun image-dired-toggle-append-browsing ()
+  "Toggle `image-dired-append-when-browsing'."
+  (interactive)
+  (setq image-dired-append-when-browsing
+        (not image-dired-append-when-browsing))
+  (message "Append browsing %s."
+           (if image-dired-append-when-browsing
+               "on"
+             "off")))
+
+(defun image-dired-mark-and-display-next ()
+  "Mark current file in dired and display next thumbnail image."
+  (interactive)
+  (dired-mark 1)
+  (image-dired-display-thumbs
+   t (or image-dired-append-when-browsing nil) t)
+  (if image-dired-dired-disp-props
+      (image-dired-dired-display-properties)))
+
+(defun image-dired-toggle-dired-display-properties ()
+  "Toggle `image-dired-dired-disp-props'."
+  (interactive)
+  (setq image-dired-dired-disp-props
+        (not image-dired-dired-disp-props))
+  (message "Dired display properties %s."
+           (if image-dired-dired-disp-props
+               "on"
+             "off")))
+
+(defvar image-dired-thumbnail-buffer "*image-dired*"
+  "Image-Dired's thumbnail buffer.")
+
+(defun image-dired-create-thumbnail-buffer ()
+  "Create thumb buffer and set `image-dired-thumbnail-mode'."
+  (let ((buf (get-buffer-create image-dired-thumbnail-buffer)))
+    (with-current-buffer buf
+      (setq buffer-read-only t)
+      (if (not (eq major-mode 'image-dired-thumbnail-mode))
+          (image-dired-thumbnail-mode)))
+    buf))
+
+(defvar image-dired-display-image-buffer "*image-dired-display-image*"
+  "Where larger versions of the images are display.")
+
+(defun image-dired-create-display-image-buffer ()
+  "Create image display buffer and set `image-dired-display-image-mode'."
+  (let ((buf (get-buffer-create image-dired-display-image-buffer)))
+    (with-current-buffer buf
+      (setq buffer-read-only t)
+      (if (not (eq major-mode 'image-dired-display-image-mode))
+          (image-dired-display-image-mode)))
+    buf))
+
+(defvar image-dired-saved-window-configuration nil
+  "Saved window configuration.")
+
+;;;###autoload
+(defun image-dired-dired-with-window-configuration (dir &optional arg)
+  "Open directory DIR and create a default window configuration.
+
+Convenience command that:
+
+ - Opens dired in folder DIR
+ - Splits windows in most useful (?) way
+ - Set `truncate-lines' to t
+
+After the command has finished, you would typically mark some
+image files in dired and type
+\\[image-dired-display-thumbs] (`image-dired-display-thumbs').
+
+If called with prefix argument ARG, skip splitting of windows.
+
+The current window configuration is saved and can be restored by
+calling `image-dired-restore-window-configuration'."
+  (interactive "DDirectory: \nP")
+  (let ((buf (image-dired-create-thumbnail-buffer))
+        (buf2 (image-dired-create-display-image-buffer)))
+    (setq image-dired-saved-window-configuration
+          (current-window-configuration))
+    (dired dir)
+    (delete-other-windows)
+    (when (not arg)
+      (split-window-horizontally)
+      (setq truncate-lines t)
+      (save-excursion
+        (other-window 1)
+        (switch-to-buffer buf)
+        (split-window-vertically)
+        (other-window 1)
+        (switch-to-buffer buf2)
+        (other-window -2)))))
+
+(defun image-dired-restore-window-configuration ()
+  "Restore window configuration.
+Restore any changes to the window configuration made by calling
+`image-dired-dired-with-window-configuration'."
+  (interactive)
+  (if image-dired-saved-window-configuration
+      (set-window-configuration image-dired-saved-window-configuration)
+    (message "No saved window configuration")))
+
+;;;###autoload
+(defun image-dired-display-thumbs (&optional arg append do-not-pop)
+  "Display thumbnails of all marked files, in `image-dired-thumbnail-buffer'.
+If a thumbnail image does not exist for a file, it is created on the
+fly.  With prefix argument ARG, display only thumbnail for file at
+point (this is useful if you have marked some files but want to show
+another one).
+
+Recommended usage is to split the current frame horizontally so that
+you have the dired buffer in the left window and the
+`image-dired-thumbnail-buffer' buffer in the right window.
+
+With optional argument APPEND, append thumbnail to thumbnail buffer
+instead of erasing it first.
+
+Option argument DO-NOT-POP controls if `pop-to-buffer' should be
+used or not.  If non-nil, use `display-buffer' instead of
+`pop-to-buffer'.  This is used from functions like
+`image-dired-next-line-and-display' and
+`image-dired-previous-line-and-display' where we do not want the
+thumbnail buffer to be selected."
+  (interactive "P")
+  (let ((buf (image-dired-create-thumbnail-buffer))
+        curr-file thumb-name files count dired-buf beg)
+    (if arg
+        (setq files (list (dired-get-filename)))
+      (setq files (dired-get-marked-files)))
+    (setq dired-buf (current-buffer))
+    (with-current-buffer buf
+      (let ((inhibit-read-only t))
+        (if (not append)
+            (erase-buffer)
+          (goto-char (point-max)))
+        (mapcar
+         (lambda (curr-file)
+           (setq thumb-name (image-dired-thumb-name curr-file))
+           (if (and (not (file-exists-p thumb-name))
+                    (not (= 0 (image-dired-create-thumb curr-file thumb-name))))
+               (message "Thumb could not be created for file %s" curr-file)
+             (image-dired-insert-thumbnail thumb-name curr-file dired-buf)))
+         files))
+      (cond ((eq 'dynamic image-dired-line-up-method)
+             (image-dired-line-up-dynamic))
+            ((eq 'fixed image-dired-line-up-method)
+             (image-dired-line-up))
+            ((eq 'interactive image-dired-line-up-method)
+             (image-dired-line-up-interactive))
+            ((eq 'none image-dired-line-up-method)
+             nil)
+            (t
+             (image-dired-line-up-dynamic))))
+    (if do-not-pop
+        (display-buffer image-dired-thumbnail-buffer)
+      (pop-to-buffer image-dired-thumbnail-buffer))))
+
+;;;###autoload
+(defun image-dired-show-all-from-dir (dir)
+  "Make a preview buffer for all images in DIR and display it.
+If the number of files in DIR matching `image-file-name-regexp'
+exceeds `image-dired-show-all-from-dir-max-files', a warning will be
+displayed."
+  (interactive "DDir: ")
+  (dired dir)
+  (dired-mark-files-regexp (image-file-name-regexp))
+  (let ((files (dired-get-marked-files)))
+    (if (or (<= (length files) image-dired-show-all-from-dir-max-files)
+            (and (> (length files) image-dired-show-all-from-dir-max-files)
+                 (y-or-n-p
+                  (format
+                   "Directory contains more than %d image files.  Proceed? "
+                   image-dired-show-all-from-dir-max-files))))
+        (progn
+          (image-dired-display-thumbs)
+          (pop-to-buffer image-dired-thumbnail-buffer))
+      (message "Cancelled."))))
+
+;;;###autoload
+(defalias 'image-dired 'image-dired-show-all-from-dir)
+
+;;;###autoload
+(defalias 'tumme 'image-dired-show-all-from-dir)
+
+(defun image-dired-write-tags (file-tags)
+  "Write file tags to database.
+Write each file and tag in FILE-TAGS to the database.  FILE-TAGS
+is an alist in the following form:
+ ((FILE . TAG) ... )"
+  (let (end file tag)
+    (with-temp-file image-dired-db-file
+      (insert-file-contents image-dired-db-file)
+      (dolist (elt file-tags)
+        (setq file (car elt)
+              tag (cdr elt))
+        (goto-char (point-min))
+        (if (search-forward-regexp (format "^%s.*$" file) nil t)
+            (progn
+              (setq end (point))
+              (beginning-of-line)
+              (when (not (search-forward (format ";%s" tag) end t))
+                (end-of-line)
+                (insert (format ";%s" tag))))
+          (goto-char (point-max))
+          (insert (format "\n%s;%s" file tag)))))))
+
+(defun image-dired-remove-tag (files tag)
+  "For all FILES, remove TAG from the image database."
+  (save-excursion
+    (let (end buf start)
+      (setq buf (find-file image-dired-db-file))
+      (if (not (listp files))
+          (if (stringp files)
+              (setq files (list files))
+            (error "Files must be a string or a list of strings!")))
+      (mapcar
+       (lambda (file)
+         (goto-char (point-min))
+         (when (search-forward-regexp
+                (format "^%s" file) nil t)
+           (end-of-line)
+           (setq end (point))
+           (beginning-of-line)
+           (when (search-forward-regexp (format "\\(;%s\\)" tag) end t)
+             (delete-region (match-beginning 1) (match-end 1))
+             ;; Check if file should still be in the database. If
+             ;; it has no tags or comments, it will be removed.
+             (end-of-line)
+             (setq end (point))
+             (beginning-of-line)
+             (when (not (search-forward ";" end t))
+               (kill-line 1)
+               ;; If on empty line at end of buffer
+               (when (and (eobp)
+                          (looking-at "^$"))
+                 (delete-backward-char 1))))))
+       files)
+      (save-buffer)
+      (kill-buffer buf))))
+
+(defun image-dired-list-tags (file)
+  "Read all tags for image FILE from the image database."
+  (save-excursion
+    (let (end buf (tags ""))
+      (setq buf (find-file image-dired-db-file))
+      (goto-char (point-min))
+      (when (search-forward-regexp
+             (format "^%s" file) nil t)
+        (end-of-line)
+        (setq end (point))
+        (beginning-of-line)
+        (if (search-forward ";" end t)
+            (if (search-forward "comment:" end t)
+                (if (search-forward ";" end t)
+                    (setq tags (buffer-substring (point) end)))
+              (setq tags (buffer-substring (point) end)))))
+      (kill-buffer buf)
+      (split-string tags ";"))))
+
+;;;###autoload
+(defun image-dired-tag-files (arg)
+  "Tag marked file(s) in dired.  With prefix ARG, tag file at point."
+  (interactive "P")
+  (let ((tag (read-string "Tags to add (separate tags with a semicolon): "))
+        curr-file files)
+    (if arg
+        (setq files (list (dired-get-filename)))
+      (setq files (dired-get-marked-files)))
+    (image-dired-write-tags
+     (mapcar
+      (lambda (x)
+        (cons x tag))
+      files))))
+
+(defun image-dired-tag-thumbnail ()
+  "Tag current thumbnail."
+  (interactive)
+  (let ((tag (read-string "Tags to add (separate tags with a semicolon): ")))
+    (image-dired-write-tags (list (cons (image-dired-original-file-name) tag))))
+  (image-dired-update-property
+   'tags (image-dired-list-tags (image-dired-original-file-name))))
+
+;;;###autoload
+(defun image-dired-delete-tag (arg)
+  "Remove tag for selected file(s).
+With prefix argument ARG, remove tag from file at point."
+  (interactive "P")
+  (let ((tag (read-string "Tag to remove: "))
+        files)
+    (if arg
+        (setq files (list (dired-get-filename)))
+      (setq files (dired-get-marked-files)))
+    (image-dired-remove-tag files tag)))
+
+(defun image-dired-tag-thumbnail-remove ()
+  "Remove tag from thumbnail."
+  (interactive)
+  (let ((tag (read-string "Tag to remove: ")))
+    (image-dired-remove-tag (image-dired-original-file-name) tag))
+  (image-dired-update-property
+   'tags (image-dired-list-tags (image-dired-original-file-name))))
+
+(defun image-dired-original-file-name ()
+  "Get original file name for thumbnail or display image at point."
+  (get-text-property (point) 'original-file-name))
+
+(defun image-dired-associated-dired-buffer ()
+  "Get associated dired buffer at point."
+  (get-text-property (point) 'associated-dired-buffer))
+
+(defun image-dired-get-buffer-window (buf)
+  "Return window where buffer BUF is."
+  (get-window-with-predicate
+   (lambda (window)
+     (equal (window-buffer window) buf))
+   nil t))
+
+(defun image-dired-track-original-file ()
+  "Track the original file in the associated dired buffer.
+See documentation for `image-dired-toggle-movement-tracking'.  Interactive
+use only useful if `image-dired-track-movement' is nil."
+  (interactive)
+  (let ((old-buf (current-buffer))
+        (dired-buf (image-dired-associated-dired-buffer))
+        (file-name (image-dired-original-file-name)))
+    (when (and (buffer-live-p dired-buf) file-name)
+      (setq file-name (file-name-nondirectory file-name))
+      (set-buffer dired-buf)
+      (goto-char (point-min))
+      (if (not (search-forward file-name nil t))
+          (message "Could not track file")
+        (dired-move-to-filename)
+        (set-window-point
+         (image-dired-get-buffer-window dired-buf) (point)))
+      (set-buffer old-buf))))
+
+(defun image-dired-toggle-movement-tracking ()
+  "Turn on and off `image-dired-track-movement'.
+Tracking of the movements between thumbnail and dired buffer so that
+they are \"mirrored\" in the dired buffer.  When this is on, moving
+around in the thumbnail or dired buffer will find the matching
+position in the other buffer."
+  (interactive)
+  (setq image-dired-track-movement (not image-dired-track-movement))
+  (message "Tracking %s" (if image-dired-track-movement "on" "off")))
+
+(defun image-dired-track-thumbnail ()
+  "Track current dired file's thumb in `image-dired-thumbnail-buffer'.
+This is almost the same as what `image-dired-track-original-file' does, but
+the other way around."
+  (let ((file (dired-get-filename))
+        (old-buf (current-buffer))
+        prop-val found)
+    (when (get-buffer image-dired-thumbnail-buffer)
+      (set-buffer image-dired-thumbnail-buffer)
+      (goto-char (point-min))
+      (while (and (not (eobp))
+                  (not found))
+        (if (and (setq prop-val
+                       (get-text-property (point) 'original-file-name))
+                 (string= prop-val file))
+            (setq found t))
+        (if (not found)
+            (forward-char 1)))
+      (when found
+        (set-window-point
+         (image-dired-thumbnail-window) (point))
+        (image-dired-display-thumb-properties))
+      (set-buffer old-buf))))
+
+(defun image-dired-dired-next-line (&optional arg)
+  "Call `dired-next-line', then track thumbnail.
+This can safely replace `dired-next-line'.  With prefix argument, move
+ARG lines."
+  (interactive "P")
+  (dired-next-line (or arg 1))
+  (if image-dired-track-movement
+      (image-dired-track-thumbnail)))
+
+(defun image-dired-dired-previous-line (&optional arg)
+  "Call `dired-previous-line', then track thumbnail.
+This can safely replace `dired-previous-line'.  With prefix argument,
+move ARG lines."
+  (interactive "P")
+  (dired-previous-line (or arg 1))
+  (if image-dired-track-movement
+      (image-dired-track-thumbnail)))
+
+(defun image-dired-forward-image (&optional arg)
+  "Move to next image and display properties.
+Optional prefix ARG says how many images to move; default is one
+image."
+  (interactive "p")
+  (let (pos (steps (or arg 1)))
+    (dotimes (i steps)
+      (if (and (not (eobp))
+               (save-excursion
+                 (forward-char)
+                 (while (and (not (eobp))
+                             (not (image-dired-image-at-point-p)))
+                   (forward-char))
+                 (setq pos (point))
+                 (image-dired-image-at-point-p)))
+          (goto-char pos)
+        (error "At last image"))))
+  (when image-dired-track-movement
+    (image-dired-track-original-file))
+  (image-dired-display-thumb-properties))
+
+(defun image-dired-backward-image (&optional arg)
+  "Move to previous image and display properties.
+Optional prefix ARG says how many images to move; default is one
+image."
+  (interactive "p")
+  (let (pos (steps (or arg 1)))
+    (dotimes (i steps)
+      (if (and (not (bobp))
+               (save-excursion
+                 (backward-char)
+                 (while (and (not (bobp))
+                             (not (image-dired-image-at-point-p)))
+                   (backward-char))
+                 (setq pos (point))
+                 (image-dired-image-at-point-p)))
+          (goto-char pos)
+        (error "At first image"))))
+  (when image-dired-track-movement
+    (image-dired-track-original-file))
+  (image-dired-display-thumb-properties))
+
+(defun image-dired-next-line ()
+  "Move to next line and display properties."
+  (interactive)
+  (next-line 1)
+  ;; If we end up in an empty spot, back up to the next thumbnail.
+  (if (not (image-dired-image-at-point-p))
+      (image-dired-backward-image))
+  (if image-dired-track-movement
+      (image-dired-track-original-file))
+  (image-dired-display-thumb-properties))
+
+
+(defun image-dired-previous-line ()
+  "Move to previous line and display properties."
+  (interactive)
+  (previous-line 1)
+  ;; If we end up in an empty spot, back up to the next
+  ;; thumbnail. This should only happen if the user deleted a
+  ;; thumbnail and did not refresh, so it is not very common. But we
+  ;; can handle it in a good manner, so why not?
+  (if (not (image-dired-image-at-point-p))
+      (image-dired-backward-image))
+  (if image-dired-track-movement
+      (image-dired-track-original-file))
+  (image-dired-display-thumb-properties))
+
+(defun image-dired-format-properties-string (buf file props comment)
+  "Format display properties.
+BUF is the associated dired buffer, FILE is the original image file
+name, PROPS is a list of tags and COMMENT is the image files's
+comment."
+  (format-spec
+   image-dired-display-properties-format
+   (list
+    (cons ?b (or buf ""))
+    (cons ?f file)
+    (cons ?t (or (princ props) ""))
+    (cons ?c (or comment "")))))
+
+(defun image-dired-display-thumb-properties ()
+  "Display thumbnail properties in the echo area."
+  (if (not (eobp))
+      (let ((file-name (file-name-nondirectory (image-dired-original-file-name)))
+            (dired-buf (buffer-name (image-dired-associated-dired-buffer)))
+            (props (mapconcat
+                    'princ
+                    (get-text-property (point) 'tags)
+                    ", "))
+            (comment (get-text-property (point) 'comment)))
+        (if file-name
+            (message
+             (image-dired-format-properties-string
+              dired-buf
+              file-name
+              props
+              comment))))))
+
+(defun image-dired-dired-file-marked-p ()
+  "Check whether file on current line is marked or not."
+  (save-excursion
+    (beginning-of-line)
+    (not (looking-at "^ .*$"))))
+
+(defun image-dired-modify-mark-on-thumb-original-file (command)
+  "Modify mark in dired buffer.
+This is quite ugly but I don't know how to implemented in a better
+way.  COMMAND is one of 'mark for marking file in dired, 'unmark for
+unmarking file in dired or 'flag for flagging file for delete in
+dired."
+  (let ((file-name (image-dired-original-file-name))
+        (dired-buf (image-dired-associated-dired-buffer)))
+    (if (not (and dired-buf file-name))
+        (message "No image, or image with correct properties, at point.")
+    (with-current-buffer dired-buf
+        (message file-name)
+        (setq file-name (file-name-nondirectory file-name))
+        (goto-char (point-min))
+        (if (search-forward file-name nil t)
+            (cond ((eq command 'mark) (dired-mark 1))
+                  ((eq command 'unmark) (dired-unmark 1))
+                  ((eq command 'toggle)
+                   (if (image-dired-dired-file-marked-p)
+                       (dired-unmark 1)
+                     (dired-mark 1)))
+                  ((eq command 'flag) (dired-flag-file-deletion 1))))))))
+
+(defun image-dired-mark-thumb-original-file ()
+  "Mark original image file in associated dired buffer."
+  (interactive)
+  (image-dired-modify-mark-on-thumb-original-file 'mark)
+  (image-dired-forward-image))
+
+(defun image-dired-unmark-thumb-original-file ()
+  "Unmark original image file in associated dired buffer."
+  (interactive)
+  (image-dired-modify-mark-on-thumb-original-file 'unmark)
+  (image-dired-forward-image))
+
+(defun image-dired-flag-thumb-original-file ()
+  "Flag original image file for deletion in associated dired buffer."
+  (interactive)
+  (image-dired-modify-mark-on-thumb-original-file 'flag)
+  (image-dired-forward-image))
+
+(defun image-dired-toggle-mark-thumb-original-file ()
+  "Toggle mark on original image file in associated dired buffer."
+  (interactive)
+  (image-dired-modify-mark-on-thumb-original-file 'toggle))
+
+(defun image-dired-jump-original-dired-buffer ()
+  "Jump to the dired buffer associated with the current image file.
+You probably want to use this together with
+`image-dired-track-original-file'."
+  (interactive)
+  (let ((buf (image-dired-associated-dired-buffer))
+        window frame)
+    (setq window (image-dired-get-buffer-window buf))
+    (if window
+        (progn
+          (if (not (equal (selected-frame) (setq frame (window-frame window))))
+              (select-frame-set-input-focus frame))
+          (select-window window))
+      (message "Associated dired buffer not visible"))))
+
+;;;###autoload
+(defun image-dired-jump-thumbnail-buffer ()
+  "Jump to thumbnail buffer."
+  (interactive)
+  (let ((window (image-dired-thumbnail-window))
+        frame)
+    (if window
+        (progn
+          (if (not (equal (selected-frame) (setq frame (window-frame window))))
+              (select-frame-set-input-focus frame))
+          (select-window window))
+      (message "Thumbnail buffer not visible"))))
+
+(defvar image-dired-thumbnail-mode-map (make-sparse-keymap)
+  "Keymap for `image-dired-thumbnail-mode'.")
+
+(defvar image-dired-thumbnail-mode-line-up-map (make-sparse-keymap)
+  "Keymap for line-up commands in `image-dired-thumbnail-mode'.")
+
+(defvar image-dired-thumbnail-mode-tag-map (make-sparse-keymap)
+  "Keymap for tag commands in `image-dired-thumbnail-mode'.")
+
+(defun image-dired-define-thumbnail-mode-keymap ()
+  "Define keymap for `image-dired-thumbnail-mode'."
+
+  ;; Keys
+  (define-key image-dired-thumbnail-mode-map [right] 'image-dired-forward-image)
+  (define-key image-dired-thumbnail-mode-map [left] 'image-dired-backward-image)
+  (define-key image-dired-thumbnail-mode-map [up] 'image-dired-previous-line)
+  (define-key image-dired-thumbnail-mode-map [down] 'image-dired-next-line)
+  (define-key image-dired-thumbnail-mode-map "\C-f" 'image-dired-forward-image)
+  (define-key image-dired-thumbnail-mode-map "\C-b" 'image-dired-backward-image)
+  (define-key image-dired-thumbnail-mode-map "\C-p" 'image-dired-previous-line)
+  (define-key image-dired-thumbnail-mode-map "\C-n" 'image-dired-next-line)
+
+  (define-key image-dired-thumbnail-mode-map "d" 'image-dired-flag-thumb-original-file)
+  (define-key image-dired-thumbnail-mode-map [delete]
+    'image-dired-flag-thumb-original-file)
+  (define-key image-dired-thumbnail-mode-map "m" 'image-dired-mark-thumb-original-file)
+  (define-key image-dired-thumbnail-mode-map "u" 'image-dired-unmark-thumb-original-file)
+  (define-key image-dired-thumbnail-mode-map "." 'image-dired-track-original-file)
+  (define-key image-dired-thumbnail-mode-map [tab] 'image-dired-jump-original-dired-buffer)
+
+  ;; add line-up map
+  (define-key image-dired-thumbnail-mode-map "g" image-dired-thumbnail-mode-line-up-map)
+
+  ;; map it to "g" so that the user can press it more quickly
+  (define-key image-dired-thumbnail-mode-line-up-map "g" 'image-dired-line-up-dynamic)
+  ;; "f" for "fixed" number of thumbs per row
+  (define-key image-dired-thumbnail-mode-line-up-map "f" 'image-dired-line-up)
+  ;; "i" for "interactive"
+  (define-key image-dired-thumbnail-mode-line-up-map "i" 'image-dired-line-up-interactive)
+
+  ;; add tag map
+  (define-key image-dired-thumbnail-mode-map "t" image-dired-thumbnail-mode-tag-map)
+
+  ;; map it to "t" so that the user can press it more quickly
+  (define-key image-dired-thumbnail-mode-tag-map "t" 'image-dired-tag-thumbnail)
+  ;; "r" for "remove"
+  (define-key image-dired-thumbnail-mode-tag-map "r" 'image-dired-tag-thumbnail-remove)
+
+  (define-key image-dired-thumbnail-mode-map "\C-m"
+    'image-dired-display-thumbnail-original-image)
+  (define-key image-dired-thumbnail-mode-map [C-return]
+    'image-dired-thumbnail-display-external)
+
+  (define-key image-dired-thumbnail-mode-map "l" 'image-dired-rotate-thumbnail-left)
+  (define-key image-dired-thumbnail-mode-map "r" 'image-dired-rotate-thumbnail-right)
+
+  (define-key image-dired-thumbnail-mode-map "L" 'image-dired-rotate-original-left)
+  (define-key image-dired-thumbnail-mode-map "R" 'image-dired-rotate-original-right)
+
+  (define-key image-dired-thumbnail-mode-map "D"
+    'image-dired-thumbnail-set-image-description)
+
+  (define-key image-dired-thumbnail-mode-map "\C-d" 'image-dired-delete-char)
+  (define-key image-dired-thumbnail-mode-map " "
+    'image-dired-display-next-thumbnail-original)
+  (define-key image-dired-thumbnail-mode-map
+    (kbd "DEL") 'image-dired-display-previous-thumbnail-original)
+  (define-key image-dired-thumbnail-mode-map "c" 'image-dired-comment-thumbnail)
+  (define-key image-dired-thumbnail-mode-map "q" 'image-dired-kill-buffer-and-window)
+
+  ;; Mouse
+  (define-key image-dired-thumbnail-mode-map [mouse-2] 'image-dired-mouse-display-image)
+  (define-key image-dired-thumbnail-mode-map [mouse-1] 'image-dired-mouse-select-thumbnail)
+
+  ;; Seems I must first set C-down-mouse-1 to undefined, or else it
+  ;; will trigger the buffer menu. If I try to instead bind
+  ;; C-down-mouse-1 to `image-dired-mouse-toggle-mark', I get a message
+  ;; about C-mouse-1 not being defined afterwards. Annoying, but I
+  ;; probably do not completely understand mouse events.
+
+  (define-key image-dired-thumbnail-mode-map [C-down-mouse-1] 'undefined)
+  (define-key image-dired-thumbnail-mode-map [C-mouse-1] 'image-dired-mouse-toggle-mark)
+
+  ;; Menu
+  (define-key image-dired-thumbnail-mode-map [menu-bar image-dired]
+    (cons "Image-Dired" (make-sparse-keymap "Image-Dired")))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-kill-buffer-and-window]
+    '("Quit" . image-dired-kill-buffer-and-window))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-delete-char]
+    '("Delete thumbnail from buffer" . image-dired-delete-char))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-tag-thumbnail-remove]
+    '("Remove tag from thumbnail" . image-dired-tag-thumbnail-remove))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-tag-thumbnail]
+    '("Tag thumbnail" . image-dired-tag-thumbnail))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-comment-thumbnail]
+    '("Comment thumbnail" . image-dired-comment-thumbnail))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-refresh-thumb]
+    '("Refresh thumb" . image-dired-refresh-thumb))
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-line-up-dynamic]
+    '("Dynamic line up" . image-dired-line-up-dynamic))
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-line-up]
+    '("Line up thumbnails" . image-dired-line-up))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-rotate-thumbnail-left]
+    '("Rotate thumbnail left" . image-dired-rotate-thumbnail-left))
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-rotate-thumbnail-right]
+    '("Rotate thumbnail right" . image-dired-rotate-thumbnail-right))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-rotate-original-left]
+    '("Rotate original left" . image-dired-rotate-original-left))
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-rotate-original-right]
+    '("Rotate original right" . image-dired-rotate-original-right))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-toggle-movement-tracking]
+    '("Toggle movement tracking on/off" . image-dired-toggle-movement-tracking))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-jump-original-dired-buffer]
+    '("Jump to dired buffer" . image-dired-jump-original-dired-buffer))
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-track-original-file]
+    '("Track original" . image-dired-track-original-file))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-flag-thumb-original-file]
+    '("Flag original for deletion" . image-dired-flag-thumb-original-file))
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-unmark-thumb-original-file]
+    '("Unmark original" . image-dired-unmark-thumb-original-file))
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-mark-thumb-original-file]
+    '("Mark original" . image-dired-mark-thumb-original-file))
+
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-thumbnail-display-external]
+    '("Display in external viewer" . image-dired-thumbnail-display-external))
+  (define-key image-dired-thumbnail-mode-map
+    [menu-bar image-dired image-dired-display-thumbnail-original-image]
+    '("Display image" . image-dired-display-thumbnail-original-image)))
+
+(defvar image-dired-display-image-mode-map (make-sparse-keymap)
+  "Keymap for `image-dired-display-image-mode'.")
+
+(defun image-dired-define-display-image-mode-keymap ()
+  "Define keymap for `image-dired-display-image-mode'."
+
+  ;; Keys
+  (define-key image-dired-display-image-mode-map "q" 'image-dired-kill-buffer-and-window)
+
+  (define-key image-dired-display-image-mode-map "f"
+    'image-dired-display-current-image-full)
+
+  (define-key image-dired-display-image-mode-map "s"
+    'image-dired-display-current-image-sized)
+
+  ;; Menu
+  (define-key image-dired-display-image-mode-map [menu-bar image-dired]
+    (cons "Image-Dired" (make-sparse-keymap "Image-Dired")))
+
+  (define-key image-dired-display-image-mode-map
+    [menu-bar image-dired image-dired-kill-buffer-and-window]
+    '("Quit" . image-dired-kill-buffer-and-window))
+
+  (define-key image-dired-display-image-mode-map
+    [menu-bar image-dired image-dired-display-current-image-sized]
+    '("Display original, sized to fit" . image-dired-display-current-image-sized))
+
+  (define-key image-dired-display-image-mode-map
+    [menu-bar image-dired image-dired-display-current-image-full]
+    '("Display original, full size" . image-dired-display-current-image-full))
+
+  )
+
+(defun image-dired-display-current-image-full ()
+  "Display current image in full size."
+  (interactive)
+  (let ((file (image-dired-original-file-name)))
+    (if file
+        (progn
+          (image-dired-display-image file t)
+          (message "Full size image displayed"))
+      (error "No original file name at point"))))
+
+(defun image-dired-display-current-image-sized ()
+  "Display current image in sized to fit window dimensions."
+  (interactive)
+  (let ((file (image-dired-original-file-name)))
+    (if file
+        (progn
+          (image-dired-display-image file)
+          (message "Full size image displayed"))
+      (error "No original file name at point"))))
+
+(define-derived-mode image-dired-thumbnail-mode
+  fundamental-mode "image-dired-thumbnail"
+  "Browse and manipulate thumbnail images using dired.
+Use `image-dired-dired' and `image-dired-setup-dired-keybindings' to get a
+nice setup to start with."
+  (image-dired-define-thumbnail-mode-keymap)
+  (message "image-dired-thumbnail-mode enabled"))
+
+(define-derived-mode image-dired-display-image-mode
+  fundamental-mode "image-dired-image-display"
+  "Mode for displaying and manipulating original image.
+Resized or in full-size."
+  (image-dired-define-display-image-mode-keymap)
+  (message "image-dired-display-image-mode enabled"))
+
+;;;###autoload
+(defun image-dired-setup-dired-keybindings ()
+  "Setup easy-to-use keybindings for the commands to be used in dired mode.
+Note that n, p and <down> and <up> will be hijacked and bound to
+`image-dired-dired-x-line'."
+  (interactive)
+
+  ;; Hijack previous and next line movement. Let C-p and C-b be
+  ;; though...
+
+  (define-key dired-mode-map "p" 'image-dired-dired-previous-line)
+  (define-key dired-mode-map "n" 'image-dired-dired-next-line)
+  (define-key dired-mode-map [up] 'image-dired-dired-previous-line)
+  (define-key dired-mode-map [down] 'image-dired-dired-next-line)
+
+  (define-key dired-mode-map (kbd "C-S-n") 'image-dired-next-line-and-display)
+  (define-key dired-mode-map (kbd "C-S-p") 'image-dired-previous-line-and-display)
+  (define-key dired-mode-map (kbd "C-S-m") 'image-dired-mark-and-display-next)
+
+  (define-key dired-mode-map "\C-td" 'image-dired-display-thumbs)
+  (define-key dired-mode-map "\C-tt" 'image-dired-tag-files)
+  (define-key dired-mode-map "\C-tr" 'image-dired-delete-tag)
+  (define-key dired-mode-map [tab] 'image-dired-jump-thumbnail-buffer)
+  (define-key dired-mode-map "\C-ti" 'image-dired-dired-display-image)
+  (define-key dired-mode-map "\C-tx" 'image-dired-dired-display-external)
+  (define-key dired-mode-map "\C-ta" 'image-dired-display-thumbs-append)
+  (define-key dired-mode-map "\C-t." 'image-dired-display-thumb)
+  (define-key dired-mode-map "\C-tc" 'image-dired-dired-comment-files)
+  (define-key dired-mode-map "\C-tf" 'image-dired-mark-tagged-files)
+
+  ;; Menu for dired
+  (define-key dired-mode-map [menu-bar image-dired]
+    (cons "Image-Dired" (make-sparse-keymap "Image-Dired")))
+
+  (define-key dired-mode-map [menu-bar image-dired image-dired-copy-with-exif-file-name]
+    '("Copy with EXIF file name" . image-dired-copy-with-exif-file-name))
+
+  (define-key dired-mode-map [menu-bar image-dired image-dired-dired-comment-files]
+    '("Comment files" . image-dired-dired-comment-files))
+
+  (define-key dired-mode-map [menu-bar image-dired image-dired-mark-tagged-files]
+    '("Mark tagged files" . image-dired-mark-tagged-files))
+
+  (define-key dired-mode-map [menu-bar image-dired image-dired-delete-tag]
+    '("Remove tag from files" . image-dired-delete-tag))
+
+  (define-key dired-mode-map [menu-bar image-dired image-dired-tag-files]
+    '("Tag files" . image-dired-tag-files))
+
+  (define-key dired-mode-map [menu-bar image-dired image-dired-jump-thumbnail-buffer]
+    '("Jump to thumbnail buffer" . image-dired-jump-thumbnail-buffer))
+
+  (define-key dired-mode-map [menu-bar image-dired image-dired-toggle-movement-tracking]
+    '("Toggle movement tracking" . image-dired-toggle-movement-tracking))
+
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-toggle-append-browsing]
+    '("Toggle append browsing" . image-dired-toggle-append-browsing))
+
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-toggle-disp-props]
+    '("Toggle display properties" . image-dired-toggle-dired-display-properties))
+
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-dired-display-external]
+    '("Display in external viewer" . image-dired-dired-display-external))
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-dired-display-image]
+    '("Display image" . image-dired-dired-display-image))
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-display-thumb]
+    '("Display this thumbnail" . image-dired-display-thumb))
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-display-thumbs-append]
+    '("Display thumbnails append" . image-dired-display-thumbs-append))
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-display-thumbs]
+    '("Display thumbnails" . image-dired-display-thumbs))
+
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-create-thumbs]
+    '("Create thumbnails for marked files" . image-dired-create-thumbs))
+
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-mark-and-display-next]
+    '("Mark and display next" . image-dired-mark-and-display-next))
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-previous-line-and-display]
+    '("Display thumb for previous file" . image-dired-previous-line-and-display))
+  (define-key dired-mode-map
+    [menu-bar image-dired image-dired-next-line-and-display]
+    '("Display thumb for next file" . image-dired-next-line-and-display)))
+
+(defun image-dired-create-thumbs (&optional arg)
+  "Create thumbnail images for all marked files in dired.
+With prefix argument ARG, create thumbnails even if they already exist
+\(i.e.  use this to refresh your thumbnails)."
+  (interactive "P")
+  (let (curr-file thumb-name files count)
+    (setq files (dired-get-marked-files))
+    (mapcar
+     (lambda (curr-file)
+       (setq thumb-name (image-dired-thumb-name curr-file))
+       ;; If the user overrides the exist check, we must clear the
+       ;; image cache so that if the user wants to display the
+       ;; thumnail, it is not fetched from cache.
+       (if arg
+           (clear-image-cache))
+       (if (or (not (file-exists-p thumb-name))
+               arg)
+           (if (not (= 0 (image-dired-create-thumb curr-file
+                                             (image-dired-thumb-name curr-file))))
+               (error "Thumb could not be created"))))
+     files)))
+
+(defvar image-dired-slideshow-timer nil
+  "Slideshow timer.")
+
+(defvar image-dired-slideshow-count 0
+  "Keeping track on number of images in slideshow.")
+
+(defvar image-dired-slideshow-times 0
+  "Number of pictures to display in slideshow.")
+
+(defun image-dired-slideshow-step ()
+  "Step to next file, if `image-dired-slideshow-times' has not been reached."
+  (if (< image-dired-slideshow-count image-dired-slideshow-times)
+      (progn
+        (message "%s" (1+ image-dired-slideshow-count))
+        (setq image-dired-slideshow-count (1+ image-dired-slideshow-count))
+        (image-dired-next-line-and-display))
+    (image-dired-slideshow-stop)))
+
+(defun image-dired-slideshow-start ()
+  "Start slideshow.
+Ask user for number of images to show and the delay in between."
+  (interactive)
+  (setq image-dired-slideshow-count 0)
+  (setq image-dired-slideshow-times (string-to-number (read-string "How many: ")))
+  (let ((repeat (string-to-number
+                 (read-string
+                  "Delay, in seconds. Decimals are accepted : " "1"))))
+    (setq image-dired-slideshow-timer
+          (run-with-timer
+           0 repeat
+           'image-dired-slideshow-step))))
+
+(defun image-dired-slideshow-stop ()
+  "Cancel slideshow."
+  (interactive)
+  (cancel-timer image-dired-slideshow-timer))
+
+(defun image-dired-delete-char ()
+  "Remove current thumbnail from thumbnail buffer and line up."
+  (interactive)
+  (let ((inhibit-read-only t))
+    (delete-char 1)
+    (if (looking-at " ")
+        (delete-char 1))))
+
+;;;###autoload
+(defun image-dired-display-thumbs-append ()
+  "Append thumbnails to `image-dired-thumbnail-buffer'."
+  (interactive)
+  (image-dired-display-thumbs nil t t))
+
+;;;###autoload
+(defun image-dired-display-thumb ()
+  "Shorthand for `image-dired-display-thumbs' with prefix argument."
+  (interactive)
+  (image-dired-display-thumbs t nil t))
+
+(defun image-dired-line-up ()
+  "Line up thumbnails according to `image-dired-thumbs-per-row'.
+See also `image-dired-line-up-dynamic'."
+  (interactive)
+  (let ((inhibit-read-only t))
+    (goto-char (point-min))
+    (while (and (not (image-dired-image-at-point-p))
+                (not (eobp)))
+      (delete-char 1))
+    (while (not (eobp))
+      (forward-char)
+      (while (and (not (image-dired-image-at-point-p))
+                  (not (eobp)))
+        (delete-char 1)))
+    (goto-char (point-min))
+    (let ((count 0))
+      (while (not (eobp))
+        (forward-char)
+        (if (= image-dired-thumbs-per-row 1)
+            (insert "\n")
+          (insert " ")
+          (setq count (1+ count))
+          (when (and (= count (- image-dired-thumbs-per-row 1))
+                     (not (eobp)))
+            (forward-char)
+            (insert "\n")
+            (setq count 0)))))
+    (goto-char (point-min))))
+
+(defun image-dired-line-up-dynamic ()
+  "Line up thumbnails images dynamically.
+Calculate how many thumbnails fit."
+  (interactive)
+  (let* ((char-width (frame-char-width))
+        (width (image-dired-window-width-pixels (image-dired-thumbnail-window)))
+        (image-dired-thumbs-per-row
+         (/ width
+            (+ (* 2 image-dired-thumb-relief)
+               (* 2 image-dired-thumb-margin)
+               image-dired-thumb-width char-width))))
+    (image-dired-line-up)))
+
+(defun image-dired-line-up-interactive ()
+  "Line up thumbnails interactively.
+Ask user how many thumbnails should be displayed per row."
+  (interactive)
+  (let ((image-dired-thumbs-per-row
+         (string-to-number (read-string "How many thumbs per row: "))))
+    (if (not (> image-dired-thumbs-per-row 0))
+        (message "Number must be greater than 0")
+      (image-dired-line-up))))
+
+(defun image-dired-thumbnail-display-external ()
+  "Display original image for thumbnail at point using external viewer."
+  (interactive)
+  (let ((file (image-dired-original-file-name)))
+    (if (not (image-dired-image-at-point-p))
+        (message "No thumbnail at point")
+      (if (not file)
+          (message "No original file name found")
+        (call-process shell-file-name nil nil nil shell-command-switch
+                      (format "%s \"%s\"" image-dired-external-viewer file))))))
+
+;;;###autoload
+(defun image-dired-dired-display-external ()
+  "Display file at point using an external viewer."
+  (interactive)
+  (let ((file (dired-get-filename)))
+    (call-process shell-file-name nil nil nil shell-command-switch
+                  (format "%s \"%s\"" image-dired-external-viewer file))))
+
+(defun image-dired-window-width-pixels (window)
+  "Calculate WINDOW width in pixels."
+    (* (window-width window) (frame-char-width)))
+
+(defun image-dired-window-height-pixels (window)
+  "Calculate WINDOW height in pixels."
+  ;; Note: The mode-line consumes one line
+    (* (- (window-height window) 1) (frame-char-height)))
+
+(defun image-dired-display-window ()
+  "Return window where `image-dired-display-image-buffer' is visible."
+  (get-window-with-predicate
+   (lambda (window)
+     (equal (buffer-name (window-buffer window)) image-dired-display-image-buffer))
+   nil t))
+
+(defun image-dired-thumbnail-window ()
+  "Return window where `image-dired-thumbnail-buffer' is visible."
+  (get-window-with-predicate
+   (lambda (window)
+     (equal (buffer-name (window-buffer window)) image-dired-thumbnail-buffer))
+   nil t))
+
+(defun image-dired-associated-dired-buffer-window ()
+  "Return window where associated dired buffer is visible."
+  (let (buf)
+    (if (image-dired-image-at-point-p)
+        (progn
+          (setq buf (image-dired-associated-dired-buffer))
+          (get-window-with-predicate
+           (lambda (window)
+             (equal (window-buffer window) buf))))
+      (error "No thumbnail image at point"))))
+
+(defun image-dired-display-window-width ()
+  "Return width, in pixels, of image-dired's image display window."
+  (- (image-dired-window-width-pixels (image-dired-display-window))
+     image-dired-display-window-width-correction))
+
+(defun image-dired-display-window-height ()
+  "Return height, in pixels, of image-dired's image display window."
+  (- (image-dired-window-height-pixels (image-dired-display-window))
+     image-dired-display-window-height-correction))
+
+(defun image-dired-display-image (file &optional original-size)
+  "Display image FILE in image buffer.
+Use this when you want to display the image, semi sized, in a new
+window.  The image is sized to fit the display window (using a
+temporary file, don't worry).  Because of this, it will not be as
+quick as opening it directly, but on most modern systems it
+should feel snappy enough.
+
+If optional argument ORIGINAL-SIZE is non-nil, display image in its
+original size."
+  (let ((new-file (expand-file-name image-dired-temp-image-file))
+        width height command ret)
+    (setq file (expand-file-name file))
+    (if (not original-size)
+        (progn
+          (setq width (image-dired-display-window-width))
+          (setq height (image-dired-display-window-height))
+          (setq command
+                (format-spec
+                 image-dired-cmd-create-temp-image-options
+                 (list
+                  (cons ?p image-dired-cmd-create-temp-image-program)
+                  (cons ?w width)
+                  (cons ?h height)
+                  (cons ?f file)
+                  (cons ?t new-file))))
+          (setq ret (call-process shell-file-name nil nil nil
+                                  shell-command-switch command))
+          (if (not (= 0 ret))
+              (error "Could not resize image")))
+      (copy-file file new-file t))
+    (with-current-buffer (image-dired-create-display-image-buffer)
+      (let ((inhibit-read-only t))
+        (erase-buffer)
+        (clear-image-cache)
+        (image-dired-insert-image image-dired-temp-image-file 'jpeg 0 0)
+        (goto-char (point-min))
+        (image-dired-update-property 'original-file-name file)))))
+
+(defun image-dired-display-thumbnail-original-image (&optional arg)
+  "Display current thumbnail's original image in display buffer.
+See documentation for `image-dired-display-image' for more information.
+With prefix argument ARG, display image in its original size."
+  (interactive "P")
+  (let ((file (image-dired-original-file-name)))
+    (if (not (string-equal major-mode "image-dired-thumbnail-mode"))
+        (message "Not in image-dired-thumbnail-mode")
+      (if (not (image-dired-image-at-point-p))
+          (message "No thumbnail at point")
+        (if (not file)
+            (message "No original file name found")
+          (image-dired-create-display-image-buffer)
+          (display-buffer image-dired-display-image-buffer)
+          (image-dired-display-image file arg))))))
+
+
+;;;###autoload
+(defun image-dired-dired-display-image (&optional arg)
+  "Display current image file.
+See documentation for `image-dired-display-image' for more information.
+With prefix argument ARG, display image in its original size."
+  (interactive "P")
+  (image-dired-create-display-image-buffer)
+  (display-buffer image-dired-display-image-buffer)
+  (image-dired-display-image (dired-get-filename) arg))
+
+(defun image-dired-image-at-point-p ()
+  "Return true if there is a image-dired thumbnail at point."
+  (get-text-property (point) 'image-dired-thumbnail))
+
+(defun image-dired-rotate-thumbnail (degrees)
+  "Rotate thumbnail DEGREES degrees."
+  (if (not (image-dired-image-at-point-p))
+      (message "No thumbnail at point")
+    (let ((file (image-dired-thumb-name (image-dired-original-file-name)))
+          command)
+      (setq command (format-spec
+                     image-dired-cmd-rotate-thumbnail-options
+                     (list
+                      (cons ?p image-dired-cmd-rotate-thumbnail-program)
+                      (cons ?d degrees)
+                      (cons ?t (expand-file-name file)))))
+      (call-process shell-file-name nil nil nil shell-command-switch command)
+      ;; Clear the cache to refresh image. I wish I could just refresh
+      ;; the current file but I do not know how to do that. Yet...
+      (clear-image-cache))))
+
+(defun image-dired-rotate-thumbnail-left ()
+  "Rotate thumbnail left (counter clockwise) 90 degrees.
+The result of the rotation is displayed in the image display area
+and a confirmation is needed before the original image files is
+overwritten.  This confirmation can be turned off using
+`image-dired-rotate-original-ask-before-overwrite'."
+  (interactive)
+  (image-dired-rotate-thumbnail "270"))
+
+(defun image-dired-rotate-thumbnail-right ()
+  "Rotate thumbnail counter right (clockwise) 90 degrees.
+The result of the rotation is displayed in the image display area
+and a confirmation is needed before the original image files is
+overwritten.  This confirmation can be turned off using
+`image-dired-rotate-original-ask-before-overwrite'."
+  (interactive)
+  (image-dired-rotate-thumbnail "90"))
+
+(defun image-dired-refresh-thumb ()
+  "Force creation of new image for current thumbnail."
+  (interactive)
+  (let ((file (image-dired-original-file-name)))
+    (clear-image-cache)
+    (image-dired-create-thumb file (image-dired-thumb-name file))))
+
+(defun image-dired-rotate-original (degrees)
+  "Rotate original image DEGREES degrees."
+  (if (not (image-dired-image-at-point-p))
+      (message "No image at point")
+    (let ((file (image-dired-original-file-name))
+          command temp-file)
+      (if (not (string-match "\.[jJ][pP[eE]?[gG]$" file))
+          (error "Only JPEG images can be rotated!"))
+      (setq command (format-spec
+                     image-dired-cmd-rotate-original-options
+                     (list
+                      (cons ?p image-dired-cmd-rotate-original-program)
+                      (cons ?d degrees)
+                      (cons ?o (expand-file-name file))
+                      (cons ?t image-dired-temp-rotate-image-file))))
+      (if (not (= 0 (call-process shell-file-name nil nil nil
+                                  shell-command-switch command)))
+          (error "Could not rotate image")
+        (image-dired-display-image image-dired-temp-rotate-image-file)
+        (if (or (and image-dired-rotate-original-ask-before-overwrite
+                     (y-or-n-p
+                      "Rotate to temp file OK.  Overwrite original image? "))
+                (not image-dired-rotate-original-ask-before-overwrite))
+            (progn
+              (copy-file image-dired-temp-rotate-image-file file t)
+              (image-dired-refresh-thumb))
+          (image-dired-display-image file))))))
+
+(defun image-dired-rotate-original-left ()
+  "Rotate original image left (counter clockwise) 90 degrees."
+  (interactive)
+  (image-dired-rotate-original "270"))
+
+(defun image-dired-rotate-original-right ()
+  "Rotate original image right (clockwise) 90 degrees."
+  (interactive)
+  (image-dired-rotate-original "90"))
+
+(defun image-dired-get-exif-file-name (file)
+  "Use the image's EXIF information to return a unique file name.
+The file name should be unique as long as you do not take more than
+one picture per second.  The original file name is suffixed at the end
+for traceability.  The format of the returned file name is
+YYYY_MM_DD_HH_MM_DD_ORIG_FILE_NAME.jpg.  Used from
+`image-dired-copy-with-exif-file-name'."
+  (let (data no-exif-data-found)
+    (if (not (string-match "\.[Jj][Pp][Ee]?[Gg]$" (expand-file-name file)))
+        (progn
+          (setq no-exif-data-found t)
+          (setq data
+                (format-time-string
+                 "%Y:%m:%d %H:%M:%S"
+                 (nth 5 (file-attributes (expand-file-name file))))))
+      (setq data (image-dired-get-exif-data (expand-file-name file)
+                                      "DateTimeOriginal")))
+    (while (string-match "[ :]" data)
+      (setq data (replace-match "_" nil nil data)))
+    (format "%s%s%s" data
+            (if no-exif-data-found
+                "_noexif_"
+              "_")
+            (file-name-nondirectory file))))
+
+(defun image-dired-thumbnail-set-image-description ()
+  "Set the ImageDescription EXIF tag for the original image.
+If the image already has a value for this tag, it is used as the
+default value at the prompt."
+  (interactive)
+  (if (not (image-dired-image-at-point-p))
+      (message "No thumbnail at point")
+    (let* ((file (image-dired-original-file-name))
+           (old-value (image-dired-get-exif-data file "ImageDescription")))
+      (if (eq 0
+              (image-dired-set-exif-data file "ImageDescription"
+                                   (read-string "Value of ImageDescription: "
+                                                old-value)))
+          (message "Successfully wrote ImageDescription tag.")
+        (error "Could not write ImageDescription tag")))))
+
+(defun image-dired-set-exif-data (file tag-name tag-value)
+  "In FILE, set EXIF tag TAG-NAME to value TAG-VALUE."
+  (let (command)
+    (setq command (format-spec
+                   image-dired-cmd-write-exif-data-options
+                   (list
+                    (cons ?p image-dired-cmd-write-exif-data-program)
+                    (cons ?f (expand-file-name file))
+                    (cons ?t tag-name)
+                    (cons ?v tag-value))))
+    (call-process shell-file-name nil nil nil shell-command-switch command)))
+
+(defun image-dired-get-exif-data (file tag-name)
+  "From FILE, return EXIF tag TAG-NAME."
+  (let ((buf (get-buffer-create "*image-dired-get-exif-data*"))
+        command tag-value)
+    (setq command (format-spec
+                   image-dired-cmd-read-exif-data-options
+                   (list
+                    (cons ?p image-dired-cmd-read-exif-data-program)
+                    (cons ?f file)
+                    (cons ?t tag-name))))
+    (with-current-buffer buf
+      (delete-region (point-min) (point-max))
+      (if (not (eq (call-process shell-file-name nil t nil
+                                 shell-command-switch command) 0))
+          (error "Could not get EXIF tag")
+        (goto-char (point-min))
+        ;; Clean buffer from newlines and carriage returns before
+        ;; getting final info
+        (while (search-forward-regexp "[\n\r]" nil t)
+          (replace-match "" nil t))
+        (setq tag-value (buffer-substring (point-min) (point-max)))))
+    tag-value))
+
+(defun image-dired-copy-with-exif-file-name ()
+  "Copy file with unique name to main image directory.
+Copy current or all marked files in dired to a new file in your
+main image directory, using a file name generated by
+`image-dired-get-exif-file-name'.  A typical usage for this if when
+copying images from a digital camera into the image directory.
+
+ Typically, you would open up the folder with the incoming
+digital images, mark the files to be copied, and execute this
+function.  The result is a couple of new files in
+`image-dired-main-image-directory' called
+2005_05_08_12_52_00_dscn0319.jpg,
+2005_05_08_14_27_45_dscn0320.jpg etc."
+  (interactive)
+  (let (new-name
+        (files (dired-get-marked-files)))
+    (mapcar
+     (lambda (curr-file)
+       (setq new-name
+             (format "%s/%s"
+                     (file-name-as-directory
+                      (expand-file-name image-dired-main-image-directory))
+                     (image-dired-get-exif-file-name curr-file)))
+       (message "Copying %s to %s" curr-file new-name)
+       (copy-file curr-file new-name))
+     files)))
+
+(defun image-dired-display-next-thumbnail-original ()
+  "In thubnail buffer, move to next thumbnail and display the image."
+  (interactive)
+  (image-dired-forward-image)
+  (image-dired-display-thumbnail-original-image))
+
+(defun image-dired-display-previous-thumbnail-original ()
+  "Move to previous thumbnail and display image."
+  (interactive)
+  (image-dired-backward-image)
+  (image-dired-display-thumbnail-original-image))
+
+(defun image-dired-write-comments (file-comments)
+  "Write file comments to database.
+Write file comments to one or more files.  FILE-COMMENTS is an alist on
+the following form:
+ ((FILE . COMMENT) ... )"
+  (let (end comment-beg-pos comment-end-pos file comment)
+    (with-temp-file image-dired-db-file
+      (insert-file-contents image-dired-db-file)
+      (dolist (elt file-comments)
+        (setq file (car elt)
+              comment (cdr elt))
+        (goto-char (point-min))
+        (if (search-forward-regexp (format "^%s.*$" file) nil t)
+            (progn
+              (setq end (point))
+              (beginning-of-line)
+              ;; Delete old comment, if any
+              (when (search-forward ";comment:" end t)
+                (setq comment-beg-pos (match-beginning 0))
+                ;; Any tags after the comment?
+                (if (search-forward ";" end t)
+                    (setq comment-end-pos (- (point) 1))
+                  (setq comment-end-pos end))
+                ;; Delete comment tag and comment
+                (delete-region comment-beg-pos comment-end-pos))
+              ;; Insert new comment
+              (beginning-of-line)
+              (unless (search-forward ";" end t)
+                (end-of-line)
+                (insert ";"))
+              (insert (format "comment:%s;" comment)))
+          ;; File does not exist in database - add it.
+          (goto-char (point-max))
+          (insert (format "\n%s;comment:%s" file comment)))))))
+
+(defun image-dired-update-property (prop value)
+  "Update text property PROP with value VALUE at point."
+  (let ((inhibit-read-only t))
+    (put-text-property
+     (point) (1+ (point))
+     prop
+     value)))
+
+;;;###autoload
+(defun image-dired-dired-comment-files ()
+  "Add comment to current or marked files in dired."
+  (interactive)
+  (let ((comment (image-dired-read-comment)))
+    (image-dired-write-comments
+     (mapcar
+      (lambda (curr-file)
+        (cons curr-file comment))
+      (dired-get-marked-files)))))
+
+(defun image-dired-comment-thumbnail ()
+  "Add comment to current thumbnail in thumbnail buffer."
+  (interactive)
+  (let* ((file (image-dired-original-file-name))
+         (comment (image-dired-read-comment file)))
+    (image-dired-write-comments (list (cons file comment)))
+    (image-dired-update-property 'comment comment))
+  (image-dired-display-thumb-properties))
+
+(defun image-dired-read-comment (&optional file)
+  "Read comment for an image.
+Read comment for an image, optionally using old comment from FILE
+as initial value."
+  (let ((comment
+         (read-string
+          "Comment: "
+          (if file (image-dired-get-comment file)))))
+    comment))
+
+(defun image-dired-get-comment (file)
+  "Get comment for file FILE."
+  (save-excursion
+    (let (end buf comment-beg-pos comment-end-pos comment)
+      (setq buf (find-file image-dired-db-file))
+      (goto-char (point-min))
+      (when (search-forward-regexp
+             (format "^%s" file) nil t)
+        (end-of-line)
+        (setq end (point))
+        (beginning-of-line)
+        (cond ((search-forward ";comment:" end t)
+               (setq comment-beg-pos (point))
+               (if (search-forward ";" end t)
+                   (setq comment-end-pos (- (point) 1))
+                 (setq comment-end-pos end))
+               (setq comment (buffer-substring
+                              comment-beg-pos comment-end-pos)))))
+      (kill-buffer buf)
+      comment)))
+
+;;;###autoload
+(defun image-dired-mark-tagged-files ()
+  "Use regexp to mark files with matching tag.
+A `tag' is a keyword, a piece of meta data, associated with an
+image file and stored in image-dired's database file.  This command
+lets you input a regexp and this will be matched against all tags
+on all image files in the database file.  The files that have a
+matching tags will be marked in the dired buffer."
+  (interactive)
+  (let ((tag (read-string "Mark tagged files (regexp): "))
+        (hits 0)
+        files buf)
+    (save-excursion
+      (setq buf (find-file image-dired-db-file))
+      (goto-char (point-min))
+      ;; Collect matches
+      (while (search-forward-regexp
+              (concat "\\(^[^;\n]+\\);.*" tag ".*$") nil t)
+        (setq files (append (list (match-string 1)) files)))
+      (kill-buffer buf)
+      ;; Mark files
+      (mapcar
+       ;; I tried using `dired-mark-files-regexp' but it was
+       ;; waaaay to slow.
+       (lambda (curr-file)
+         ;; Don't bother about hits found in other directories than
+         ;; the current one.
+         (when (string= (file-name-as-directory
+                         (expand-file-name default-directory))
+                      (file-name-as-directory
+                       (file-name-directory curr-file)))
+           (setq curr-file (file-name-nondirectory curr-file))
+           (goto-char (point-min))
+           (when (search-forward-regexp (format "\\s %s$" curr-file) nil t)
+             (setq hits (+ hits 1))
+             (dired-mark 1))))
+       files))
+    (message "%d files with matching tag marked." hits)))
+
+(defun image-dired-mouse-display-image (event)
+  "Use mouse EVENT, call `image-dired-display-image' to display image.
+Track this in associated dired buffer if `image-dired-track-movement' is
+non-nil."
+  (interactive "e")
+  (let (file)
+    (mouse-set-point event)
+    (goto-char (posn-point (event-end event)))
+    (setq file (image-dired-original-file-name))
+    (if image-dired-track-movement
+        (image-dired-track-original-file))
+    (image-dired-create-display-image-buffer)
+    (display-buffer image-dired-display-image-buffer)
+    (image-dired-display-image file)))
+
+(defun image-dired-mouse-select-thumbnail (event)
+  "Use mouse EVENT to select thumbnail image.
+Track this in associated dired buffer if `image-dired-track-movement' is
+non-nil."
+  (interactive "e")
+  (let (file)
+    (mouse-set-point event)
+    (goto-char (posn-point (event-end event)))
+    (if image-dired-track-movement
+        (image-dired-track-original-file)))
+  (image-dired-display-thumb-properties))
+
+(defun image-dired-mouse-toggle-mark (event)
+  "Use mouse EVENT to toggle dired mark for thumbnail.
+Track this in associated dired buffer if `image-dired-track-movement' is
+non-nil."
+  (interactive "e")
+  (let (file)
+    (mouse-set-point event)
+    (goto-char (posn-point (event-end event)))
+    (if image-dired-track-movement
+        (image-dired-track-original-file)))
+  (image-dired-toggle-mark-thumb-original-file))
+
+(defun image-dired-dired-display-properties ()
+  "Display properties for dired file in the echo area."
+  (interactive)
+  (let* ((file (dired-get-filename))
+         (file-name (file-name-nondirectory file))
+         (dired-buf (buffer-name (current-buffer)))
+         (props (mapconcat
+                 'princ
+                 (image-dired-list-tags file)
+                 ", "))
+         (comment (image-dired-get-comment file)))
+    (if file-name
+        (message
+         (image-dired-format-properties-string
+          dired-buf
+          file-name
+          props
+          comment)))))
+
+(defvar image-dired-tag-file-list nil
+  "List to store tag-file structure.")
+
+(defvar image-dired-file-tag-list nil
+  "List to store file-tag structure.")
+
+(defvar image-dired-file-comment-list nil
+  "List to store file comments.")
+
+(defun image-dired-add-to-tag-file-list (tag file)
+  "Add relation between TAG and FILE."
+  (let (curr)
+    (if image-dired-tag-file-list
+        (if (setq curr (assoc tag image-dired-tag-file-list))
+            (if (not (member file curr))
+                (setcdr curr (cons file (cdr curr))))
+          (setcdr image-dired-tag-file-list
+                  (cons (list tag file) (cdr image-dired-tag-file-list))))
+      (setq image-dired-tag-file-list (list (list tag file))))))
+
+(defun image-dired-add-to-tag-file-lists (tag file)
+  "Helper function used from `image-dired-create-gallery-lists'.
+
+Add TAG to FILE in one list and FILE to TAG in the other.
+
+Lisp structures look like the following:
+
+image-dired-file-tag-list:
+
+  ((\"filename1\" \"tag1\" \"tag2\" \"tag3\" ...)
+   (\"filename2\" \"tag1\" \"tag2\" \"tag3\" ...)
+   ...)
+
+image-dired-tag-file-list:
+
+ ((\"tag1\" \"filename1\" \"filename2\" \"filename3\" ...)
+  (\"tag2\" \"filename1\" \"filename2\" \"filename3\" ...)
+  ...)"
+  ;; Add tag to file list
+  (let (curr)
+    (if image-dired-file-tag-list
+        (if (setq curr (assoc file image-dired-file-tag-list))
+            (setcdr curr (cons tag (cdr curr)))
+          (setcdr image-dired-file-tag-list
+                  (cons (list file tag) (cdr image-dired-file-tag-list))))
+      (setq image-dired-file-tag-list (list (list file tag))))
+    ;; Add file to tag list
+    (if image-dired-tag-file-list
+        (if (setq curr (assoc tag image-dired-tag-file-list))
+            (if (not (member file curr))
+                (setcdr curr (cons file (cdr curr))))
+          (setcdr image-dired-tag-file-list
+                  (cons (list tag file) (cdr image-dired-tag-file-list))))
+      (setq image-dired-tag-file-list (list (list tag file))))))
+
+(defun image-dired-add-to-file-comment-list (file comment)
+  "Helper function used from `image-dired-create-gallery-lists'.
+
+For FILE, add COMMENT to list.
+
+Lisp structure looks like the following:
+
+image-dired-file-comment-list:
+
+  ((\"filename1\" .  \"comment1\")
+   (\"filename2\" .  \"comment2\")
+   ...)"
+  (if image-dired-file-comment-list
+      (if (not (assoc file image-dired-file-comment-list))
+          (setcdr image-dired-file-comment-list
+                  (cons (cons file comment)
+                        (cdr image-dired-file-comment-list))))
+    (setq image-dired-file-comment-list (list (cons file comment)))))
+
+(defun image-dired-create-gallery-lists ()
+  "Create temporary lists used by `image-dired-gallery-generate'."
+  (let ((buf (find-file image-dired-db-file))
+        end beg file row-tags)
+    (setq image-dired-tag-file-list nil)
+    (setq image-dired-file-tag-list nil)
+    (setq image-dired-file-comment-list nil)
+    (goto-char (point-min))
+    (while (search-forward-regexp "^." nil t)
+      (end-of-line)
+      (setq end (point))
+      (beginning-of-line)
+      (setq beg (point))
+      (if (not (search-forward ";" end nil))
+          (error "Something is really wrong, check format of database"))
+      (setq row-tags (split-string
+                      (buffer-substring beg end) ";"))
+      (setq file (car row-tags))
+      (mapc
+       (lambda (x)
+         (if (not (string-match "^comment:\\(.*\\)" x))
+             (image-dired-add-to-tag-file-lists x file)
+           (image-dired-add-to-file-comment-list file (match-string 1 x))))
+       (cdr row-tags)))
+    (kill-buffer buf))
+  ;; Sort tag-file list
+  (setq image-dired-tag-file-list
+        (sort image-dired-tag-file-list
+              (lambda (x y)
+                (string< (car x) (car y))))))
+
+(defun image-dired-hidden-p (file)
+  "Return t if image FILE has a \"hidden\" tag."
+  (let (hidden)
+    (mapc
+     (lambda (tag)
+       (if (member tag image-dired-gallery-hidden-tags)
+           (setq hidden t)))
+     (cdr (assoc file image-dired-file-tag-list)))
+    hidden))
+
+(defun image-dired-gallery-generate ()
+  "Generate gallery pages.
+First we create a couple of Lisp structures from the database to make
+it easier to generate, then HTML-files are created in
+`image-dired-gallery-dir'"
+  (interactive)
+  (if (eq 'per-directory image-dired-thumbnail-storage)
+      (error "Currently, gallery generation is not supported \
+when using per-directory thumbnail file storage"))
+  (image-dired-create-gallery-lists)
+  (let ((tags image-dired-tag-file-list)
+        count curr tag index-buf tag-buf
+        comment file-tags tag-link tag-link-list)
+    ;; Make sure gallery root exist
+    (if (file-exists-p image-dired-gallery-dir)
+        (if (not (file-directory-p image-dired-gallery-dir))
+            (error "Variable image-dired-gallery-dir is not a directory"))
+      (make-directory image-dired-gallery-dir))
+    ;; Open index file
+    (setq index-buf (find-file
+                     (format "%s/index.html" image-dired-gallery-dir)))
+    (erase-buffer)
+    (insert "<html>\n")
+    (insert "  <body>\n")
+    (insert "   <h2>Image-Dired Gallery</h2>\n")
+    (insert (format "<p>\n    Gallery generated %s\n   <p>\n"
+                    (current-time-string)))
+    (insert "   <h3>Tag index</h3>\n")
+    (setq count 1)
+    ;; Pre-generate list of all tag links
+    (mapc
+     (lambda (curr)
+       (setq tag (car curr))
+       (when (not (member tag image-dired-gallery-hidden-tags))
+         (setq tag-link (format "<a href=\"%d.html\">%s</a>" count tag))
+         (if tag-link-list
+             (setq tag-link-list
+                   (append tag-link-list (list (cons tag tag-link))))
+           (setq tag-link-list (list (cons tag tag-link))))
+         (setq count (1+ count))))
+     tags)
+    (setq count 1)
+    ;; Main loop where we generated thumbnail pages per tag
+    (mapc
+     (lambda (curr)
+       (setq tag (car curr))
+       ;; Don't display hidden tags
+       (when (not (member tag image-dired-gallery-hidden-tags))
+         ;; Insert link to tag page in index
+         (insert (format "    %s<br>\n" (cdr (assoc tag tag-link-list))))
+         ;; Open per-tag file
+         (setq tag-buf (find-file
+                        (format "%s/%s.html" image-dired-gallery-dir count)))
+         (erase-buffer)
+         (insert "<html>\n")
+         (insert "  <body>\n")
+         (insert "  <p><a href=\"index.html\">Index</a></p>\n")
+         (insert (format "  <h2>Images with tag &quot;%s&quot;</h2>" tag))
+         ;; Main loop for files per tag page
+         (mapc
+          (lambda (file)
+            (when (not (image-dired-hidden-p file))
+              ;; Insert thumbnail with link to full image
+              (insert
+               (format "<a href=\"%s/%s\"><img src=\"%s/%s\"%s></a>\n"
+                       image-dired-gallery-image-root-url
+                       (file-name-nondirectory file)
+                       image-dired-gallery-thumb-image-root-url
+                       (file-name-nondirectory (image-dired-thumb-name file)) file))
+              ;; Insert comment, if any
+              (if (setq comment (cdr (assoc file image-dired-file-comment-list)))
+                  (insert (format "<br>\n%s<br>\n" comment))
+                (insert "<br>\n"))
+              ;; Insert links to other tags, if any
+              (when (> (length
+                        (setq file-tags (assoc file image-dired-file-tag-list))) 2)
+                (insert "[ ")
+                (mapc
+                 (lambda (extra-tag)
+                   ;; Only insert if not file name or the main tag
+                   (if (and (not (equal extra-tag tag))
+                            (not (equal extra-tag file)))
+                       (insert
+                        (format "%s " (cdr (assoc extra-tag tag-link-list))))))
+                 file-tags)
+                (insert "]<br>\n"))))
+          (cdr curr))
+         (insert "  <p><a href=\"index.html\">Index</a></p>\n")
+         (insert "  </body>\n")
+         (insert "</html>\n")
+         (save-buffer)
+         (kill-buffer tag-buf)
+         (setq count (1+ count))))
+       tags)
+    (insert "  </body>\n")
+    (insert "</html>")
+    (save-buffer)
+    (kill-buffer index-buf)))
+
+(defun image-dired-kill-buffer-and-window ()
+  "Kill the current buffer and, if possible, also the window."
+  (interactive)
+  (let ((buffer (current-buffer)))
+    (condition-case nil
+        (delete-window (selected-window))
+      (error nil))
+    (kill-buffer buffer)))
+
+(defvar image-dired-widget-list nil
+  "List to keep track of meta data in edit buffer.")
+
+;;;###autoload
+(defun image-dired-dired-edit-comment-and-tags ()
+  "Edit comment and tags of current or marked image files.
+Edit comment and tags for all marked image files in an
+easy-to-use form."
+  (interactive)
+  (setq image-dired-widget-list nil)
+  ;; Setup buffer.
+  (let ((files (dired-get-marked-files)))
+    (switch-to-buffer "*Image-Dired Edit Meta Data*")
+    (kill-all-local-variables)
+    (make-local-variable 'widget-example-repeat)
+    (let ((inhibit-read-only t))
+      (erase-buffer))
+    (remove-overlays)
+    ;; Some help for the user.
+    (widget-insert
+"\nEdit comments and tags for each image.  Separate multiple tags
+with a comma.  Move forward between fields using TAB or RET.
+Move to the previous field using backtab (S-TAB).  Save by
+activating the Save button at the bottom of the form or cancel
+the operation by activating the Cancel button.\n\n")
+    ;; Here comes all images and a comment and tag field for each
+    ;; image.
+    (let (thumb-file img comment-widget tag-widget)
+
+      (dolist (file files)
+
+       (setq thumb-file (image-dired-thumb-name file)
+             img (create-image thumb-file))
+
+       (insert-image img)
+       (widget-insert "\n\nComment: ")
+       (setq comment-widget
+             (widget-create 'editable-field
+                            :size 60
+                            :format "%v "
+                            :value (or (image-dired-get-comment file) "")))
+       (widget-insert "\nTags:    ")
+       (setq tag-widget
+             (widget-create 'editable-field
+                            :size 60
+                            :format "%v "
+                            :value (or (mapconcat
+                                        (lambda (tag)
+                                          tag)
+                                        (image-dired-list-tags file)
+                                        ",") "")))
+       ;; Save information in all widgets so that we can use it when
+       ;; the user saves the form.
+       (setq image-dired-widget-list
+             (append image-dired-widget-list
+                     (list (list file comment-widget tag-widget))))
+       (widget-insert "\n\n")))
+
+    ;; Footer with Save and Cancel button.
+    (widget-insert "\n")
+    (widget-create 'push-button
+                 :notify
+                 (lambda (&rest ignore)
+                   (image-dired-save-information-from-widgets)
+                   (bury-buffer)
+                   (message "Done."))
+                 "Save")
+    (widget-insert " ")
+    (widget-create 'push-button
+                   :notify
+                   (lambda (&rest ignore)
+                     (bury-buffer)
+                     (message "Operation canceled."))
+                   "Cancel")
+    (widget-insert "\n")
+    (use-local-map widget-keymap)
+    (widget-setup)
+    ;; Jump to the first widget.
+    (widget-forward 1)))
+
+(defun image-dired-save-information-from-widgets ()
+  "Save information found in `image-dired-widget-list'.
+Use the information in `image-dired-widget-list' to save comments and
+tags to their respective image file.  Internal function used by
+`image-dired-dired-edit-comment-and-tags'."
+  (let (file comment tag-string tag-list lst)
+    (image-dired-write-comments
+          (mapcar
+           (lambda (widget)
+             (setq file (car widget)
+                   comment (widget-value (cadr widget)))
+             (cons file comment))
+           image-dired-widget-list))
+    (image-dired-write-tags
+     (dolist (widget image-dired-widget-list lst)
+       (setq file (car widget)
+             tag-string (widget-value (car (cddr widget)))
+             tag-list (split-string tag-string ","))
+       (dolist (tag tag-list)
+         (push (cons file tag) lst))))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;;;;;;;; TEST-SECTION ;;;;;;;;;;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; (defvar image-dired-dir-max-size 12300000)
+
+;; (defun image-dired-test-clean-old-files ()
+;;   "Clean `image-dired-dir' from old thumbnail files.
+;; \"Oldness\" measured using last access time.  If the total size of all
+;; thumbnail files in `image-dired-dir' is larger than 'image-dired-dir-max-size',
+;; old files are deleted until the max size is reached."
+;;   (let* ((files
+;;           (sort
+;;            (mapcar
+;;             (lambda (f)
+;;               (let ((fattribs (file-attributes f)))
+;;                 ;; Get last access time and file size
+;;                 `(,(nth 4 fattribs) ,(nth 7 fattribs) ,f)))
+;;             (directory-files (image-dired-dir) t ".+\.thumb\..+$"))
+;;            ;; Sort function. Compare time between two files.
+;;            '(lambda (l1 l2)
+;;               (time-less-p (car l1) (car l2)))))
+;;          (dirsize (apply '+ (mapcar (lambda (x) (cadr x)) files))))
+;;     (while (> dirsize image-dired-dir-max-size)
+;;       (y-or-n-p
+;;        (format "Size of thumbnail directory: %d, delete old file %s? "
+;;                dirsize (cadr (cdar files))))
+;;       (delete-file (cadr (cdar files)))
+;;       (setq dirsize (- dirsize (car (cdar files))))
+;;       (setq files (cdr files)))))
+
+;;;;;;;;;;;;;;;;;;;;;;,
+
+;; (defun dired-speedbar-buttons (dired-buffer)
+;;   (when (and (boundp 'image-dired-use-speedbar)
+;;           image-dired-use-speedbar)
+;;     (let ((filename (with-current-buffer dired-buffer
+;;                    (dired-get-filename))))
+;;       (when (and (not (string-equal filename (buffer-string)))
+;;               (string-match (image-file-name-regexp) filename))
+;;      (erase-buffer)
+;;      (insert (propertize
+;;               filename
+;;               'display
+;;               (image-dired-get-thumbnail-image filename)))))))
+
+;; (setq image-dired-use-speedbar t)
+
+(provide 'image-dired)
+
+;; arch-tag: 9d11411d-331f-4380-8b44-8adfe3a0343e
+;;; image-dired.el ends here