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authorWilliam Xu <william.xwl@gmail.com>2008-06-17 14:43:45 +0900
committerWilliam Xu <william.xwl@gmail.com>2008-06-17 14:43:45 +0900
commit67f5263943276faee0de53d947b6191205ae7a43 (patch)
tree0e67fe4722894a3d4dc9806fc506617c8a0c8a7d /emms-playlist-sort.el
parent964d7c3b354b66d0fba6f4eb7c2e058c2bfe2d59 (diff)
*.el -> lisp/*.el: Move lisp files into "lisp/" subdirectory.
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diff --git a/emms-playlist-sort.el b/emms-playlist-sort.el
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-;;; emms-playlist-sort.el --- sort emms playlist
-
-;; Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
-
-;; Author: William Xu <william.xwl@gmail.com>
-
-;; This file is part of EMMS.
-
-;; EMMS 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 3, or (at your option)
-;; any later version.
-;;
-;; EMMS 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 EMMS; if not, write to the Free Software Foundation,
-;; Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
-
-;;; Code:
-
-(eval-when-compile (require 'cl))
-(require 'emms-last-played)
-(require 'emms-playlist-mode)
-
-;;; User Customizations
-
-(defgroup emms-playlist-sort nil
- "Sorting Emacs Multimedia System playlists."
- :prefix "emms-playlist-sort-"
- :group 'emms)
-
-(defcustom emms-playlist-sort-list '(info-artist info-album)
- "Sorting list used by `emms-playlist-sort-by-list'.
-Currently it understands the following fields: name info-artist
-imfo-composer info-performer info-title info-album info-genre
-info-playing-time info-tracknumber."
- :type 'symbol
- :group 'emms-playlist-sort)
-
-(defcustom emms-playlist-sort-prefix "S"
- "Prefix key sequence for `emms-playlist-sort-map'.
-Remember to call `emms-playlist-sort-map-setup' if you modify it."
- :type 'string
- :group 'emms-playlist-sort)
-
-
-;;; User Interfaces
-
-(defmacro define-emms-playlist-sort (attribute)
- "Macro for defining emms playlist sort functions on strings ."
- `(defun ,(intern (format "emms-playlist-sort-by-%s" attribute)) ()
- ,(format "Sort emms playlist by %s, increasingly.
-With a prefix argument, decreasingly." attribute)
- (interactive)
- (emms-playlist-sort
- (lambda (a b)
- (if current-prefix-arg
- (emms-string> (emms-track-get a (quote ,attribute))
- (emms-track-get b (quote ,attribute)))
- (emms-string< (emms-track-get a (quote ,attribute))
- (emms-track-get b (quote ,attribute))))))))
-
-(define-emms-playlist-sort name)
-(define-emms-playlist-sort info-artist)
-(define-emms-playlist-sort info-composer)
-(define-emms-playlist-sort info-performer)
-(define-emms-playlist-sort info-title)
-(define-emms-playlist-sort info-album)
-(define-emms-playlist-sort info-year)
-(define-emms-playlist-sort info-note)
-
-(defun emms-playlist-sort-by-natural-order ()
- "Sort emms playlist by natural order.
-See `emms-sort-natural-order-less-p'."
- (interactive)
- (emms-playlist-sort 'emms-sort-natural-order-less-p))
-
-(defun emms-playlist-sort-by-list ()
- "Sort emms playlist by `emms-playlist-sort-list'.
-The sort will be carried out until comparsion succeeds, increasingly."
- (interactive)
- (emms-playlist-sort 'emms-playlist-sort-by-list-p))
-
-(defun emms-playlist-sort-by-last-played ()
- "Sort emms playlist by last played time, increasingly.
-With a prefix argument, decreasingly."
- (interactive)
- (emms-playlist-sort
- '(lambda (a b)
- (let ((ret (time-less-p
- (or (emms-track-get a 'last-played) '(0 0 0))
- (or (emms-track-get b 'last-played) '(0 0 0)))))
- (if current-prefix-arg
- (not ret)
- ret)))))
-
-(defun emms-playlist-sort-by-play-count ()
- "Sort emms playlist by play-count, increasingly.
-With a prefix argument, decreasingly."
- (interactive)
- (emms-playlist-sort
- '(lambda (a b)
- (let ((ret (< (or (emms-track-get a 'play-count) 0)
- (or (emms-track-get b 'play-count) 0))))
- (if current-prefix-arg
- (not ret)
- ret)))))
-
-(defvar emms-playlist-sort-map nil)
-
-(defun emms-playlist-sort-map-setup ()
- "Setup sort map with latest `emms-playlist-sort-prefix'."
- (setq emms-playlist-sort-map
- (let ((map (make-sparse-keymap)))
- (define-key map (kbd "n") 'emms-playlist-sort-by-natural-order)
- (define-key map (kbd "a") 'emms-playlist-sort-by-info-artist)
- (define-key map (kbd "c") 'emms-playlist-sort-by-play-count)
- (define-key map (kbd "b") 'emms-playlist-sort-by-info-album)
- (define-key map (kbd "l") 'emms-playlist-sort-by-last-played)
- (define-key map (kbd "t") 'emms-playlist-sort-by-info-title)
-
- (define-key map (kbd "p") 'emms-playlist-sort-by-info-performer)
- (define-key map (kbd "y") 'emms-playlist-sort-by-info-year)
- (define-key map (kbd "o") 'emms-playlist-sort-by-info-note)
- (define-key map (kbd "C") 'emms-playlist-sort-by-info-composer)
- (define-key map (kbd "L") 'emms-playlist-sort-by-list)
- (define-key map (kbd "N") 'emms-playlist-sort-by-name)
- map))
-
- (define-key emms-playlist-mode-map
- emms-playlist-sort-prefix emms-playlist-sort-map))
-
-(setq emms-playlist-sort-map (emms-playlist-sort-map-setup))
-
-
-;;; Low Level Functions
-
-(defun emms-playlist-sort (predicate)
- "Sort the playlist buffer by PREDICATE."
- (with-current-emms-playlist
- (emms-playlist-ensure-playlist-buffer)
- (let ((current (emms-playlist-selected-track))
- (tracks (nreverse
- (emms-playlist-tracks-in-region
- (point-min) (point-max)))))
- (delete-region (point-min) (point-max))
- (run-hooks 'emms-playlist-cleared-hook)
- (mapc 'emms-playlist-insert-track (sort tracks predicate))
- (let ((pos (text-property-any
- (point-min) (point-max) 'emms-track current)))
- (if pos
- (emms-playlist-select pos)
- (emms-playlist-first))
- ;; (emms-playlist-mode-center-current)
- (goto-char (point-min))
- ))))
-
-(defun emms-sort-natural-order-less-p (a b)
- "Sort two tracks by natural order.
-This is the order in which albums where intended to be played.
-ie. by album name and then by track number."
- (let ((album-a (emms-track-get a 'info-album))
- (album-b (emms-track-get b 'info-album)))
- (or (emms-string< album-a album-b)
- (and album-a
- album-b
- (string= album-a album-b)
- (< (string-to-number (or (emms-track-get a 'info-tracknumber)
- "0"))
- (string-to-number (or (emms-track-get b 'info-tracknumber)
- "0")))))))
-
-(defun emms-playlist-sort-by-list-p (a b)
- (catch 'return
- (dolist (info emms-playlist-sort-list)
- (case info
- ((name info-artist info-composer info-performer info-title info-album info-genre)
- (when (emms-string< (emms-track-get a info)
- (emms-track-get b info))
- (throw 'return t)))
- ((info-playing-time)
- (when (< (emms-track-get a info)
- (emms-track-get b info))
- (throw 'return t)))
- ((info-tracknumber)
- (when (< (string-to-number (or (emms-track-get a info) "0"))
- (string-to-number (or (emms-track-get b info) "0")))
- (throw 'return t)))))))
-
-(defun emms-string< (s1 s2)
- (string< (downcase (or s1 "")) (downcase (or s2 ""))))
-
-(defun emms-string> (s1 s2)
- (let ((a (downcase (or s1 "")))
- (b (downcase (or s2 ""))))
- (not (or (string= a b) (string< a b)))))
-
-(provide 'emms-playlist-sort)
-
-;;; emms-playlist-sort.el ends here