263 lines
9.9 KiB
EmacsLisp
263 lines
9.9 KiB
EmacsLisp
;;; nyan-mode.el --- Nyan Cat shows position in current buffer in mode-line.
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;;;
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;;; Nyanyanyanyanyanyanya!
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;;;
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;;; Author: Jacek "TeMPOraL" Zlydach <temporal.pl@gmail.com>
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;;; URL: http://nyan-mode.buildsomethingamazing.com
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;;; Version: 0.2
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;;; Keywords: nyan, cat, lulz, pop tart cat, build something amazing
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;;;
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;;; Inspired by (and in few places copied from) sml-modeline.el,
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;;; written by Lennart Borgman
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;;; See: http://bazaar.launchpad.net/~nxhtml/nxhtml/main/annotate/head%3A/util/sml-modeline.el
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; LICENSE
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation; either version 3, or
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;; (at your option) any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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;; Floor, Boston, MA 02110-1301, USA.
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Some TODOs
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;;; * Investigate why wavy rainbow didn't work on Antoszka's computer.
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;;; * Refactor-out :set lambdas in customs if possible.
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;;; * MAYBE add something to protect users from going to 0 with nyanbar width?
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;;; * Add credits for used images.
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(defgroup nyan nil
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"Customization group for `nyan-mode'."
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:group 'frames)
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(defun nyan-refresh ()
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"Refresh after option changes if loaded."
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(when (featurep 'nyan-mode)
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(when (and (boundp 'nyan-mode)
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nyan-mode)
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(nyan-mode -1)
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(nyan-mode 1))))
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(defcustom nyan-animation-frame-interval 0.2
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"Number of seconds between animation frames."
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:set (lambda (sym val)
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(set-default sym val)
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(nyan-refresh))
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:group 'nyan)
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(defvar nyan-animation-timer nil)
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(defvar nyan-animation-loop-count 0)
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(defvar nyan-animation-loop-max 1)
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(defun nyan-start-animation ()
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(interactive)
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(when (not nyan-animation-timer)
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(setq nyan-animation-timer
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(run-at-time "0 sec"
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nyan-animation-frame-interval
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'nyan-swich-anim-frame)
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nyan-animation-loop-count 0)))
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(defun nyan-stop-animation ()
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(interactive)
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(when nyan-animation-timer
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(cancel-timer nyan-animation-timer)
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(setq nyan-animation-timer nil)))
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;; mplayer needs to be installed for that
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(defun nyan-start-music ()
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(interactive)
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(start-process-shell-command "nyan-music" "nyan-music" (concat "mplayer " +nyan-music+ " -loop 0")))
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(defun nyan-stop-music ()
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(interactive)
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(kill-process "nyan-music"))
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;;; FIXME bug, doesn't work for antoszka.
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(defcustom nyan-wavy-trail nil
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"If enabled, Nyan Cat's rainbow trail will be wavy."
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:type '(choice (const :tag "Enabled" t)
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(const :tag "Disabled" nil))
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:set (lambda (sym val)
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(set-default sym val)
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(nyan-refresh))
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:group 'nyan)
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(defcustom nyan-bar-length 32
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"Length of Nyan Cat bar in units; each unit is equal to an 8px
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image. Minimum of 3 units are required for Nyan Cat."
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:set (lambda (sym val)
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(set-default sym val)
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(nyan-refresh))
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:group 'nyan)
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(defcustom nyan-animate-nyancat nil
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"Enable animation for Nyan Cat.
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This can be t or nil."
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:type '(choice (const :tag "Enabled" t)
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(const :tag "Disabled" nil))
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:set (lambda (sym val)
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(set-default sym val)
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(if val
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(nyan-start-animation)
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(nyan-stop-animation))
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(nyan-refresh))
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:group 'nyan)
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(defcustom nyan-cat-face-number 1
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"Select cat face number for console."
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)
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(defconst +nyan-directory+ (file-name-directory (or load-file-name buffer-file-name)))
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(defconst +nyan-cat-size+ 3)
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(defconst +nyan-cat-image+ (concat +nyan-directory+ "img/nyan.xpm"))
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(defconst +nyan-cat-start-image+ (concat +nyan-directory+ "img/nyan-start.xpm"))
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(defconst +nyan-rainbow-image+ (concat +nyan-directory+ "img/rainbow.xpm"))
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(defconst +nyan-rainbow-start-image+ (concat +nyan-directory+ "img/rainbow-start.xpm"))
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(defconst +nyan-outerspace-image+ (concat +nyan-directory+ "img/outerspace.xpm"))
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(defconst +nyan-music+ (concat +nyan-directory+ "mus/nyanlooped.mp3"))
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;;; Load images of Nyan Cat an it's rainbow.
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(defvar nyan-cat-image (create-image +nyan-cat-image+ 'xpm nil :ascent 'center))
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(defvar nyan-cat-start-image (create-image +nyan-cat-start-image+ 'xpm nil :ascent 'center))
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(defvar nyan-animation-frames (mapcar (lambda (id)
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(create-image (concat +nyan-directory+ (format "img/nyan-frame-%d.xpm" id))
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'xpm nil :ascent 'center))
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'(1 2 3 4 5 6)))
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(defvar nyan-last-rainbow-count 0)
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(defvar nyan-current-frame 0)
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(defconst +catface+ [
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["[]*" "[]#"]
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["(*^ｰﾟ)" "( ^ｰ^)" "(^ｰ^ )" "(ﾟｰ^*)"]
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["(´ω｀三 )" "( ´ω三｀ )" "( ´三ω｀ )" "( 三´ω｀)"
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"( 三´ω｀)" "( ´三ω｀ )" "( ´ω三｀ )" "(´ω｀三 )"]
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["(´д｀;)" "( ´д`;)" "( ;´д`)" "(;´д` )"]
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["(」・ω・)」" "(／・ω・)／" "(」・ω・)」" "(／・ω・)／"
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"(」・ω・)」" "(／・ω・)／" "(」・ω・)」" "＼(・ω・)／"]
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["(＞ワ＜三 )" "( ＞ワ三＜ )"
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"( ＞三ワ＜ )" "( 三＞ワ＜)"
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"( ＞三ワ＜ )" "( ＞ワ三＜ )"]])
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(defun nyan-swich-anim-frame ()
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(when (> nyan-animation-loop-count nyan-animation-loop-max)
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(nyan-stop-animation))
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(setq nyan-current-frame (% (+ 1 nyan-current-frame) 6))
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(when (equal nyan-current-frame 5)
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(setq nyan-animation-loop-count (1+ nyan-animation-loop-count)))
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(redraw-modeline))
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(defun nyan-get-anim-frame (rainbows &optional start)
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(if (and nyan-animation-timer (> rainbows 0))
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(nth nyan-current-frame nyan-animation-frames)
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(if start nyan-cat-start-image nyan-cat-image)))
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(defun nyan-wavy-rainbow-ascent (number)
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(if nyan-animation-timer
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(min 100 (+ 81
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(* 3 (abs (- (/ 6 2)
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(% (+ number nyan-current-frame)
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6))))))
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(if (< (% number 6) 3) 90 'center)))
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(defun nyan-number-of-rainbows ()
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(round (/ (* (round (* 100
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(/ (- (float (point))
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(float (point-min)))
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(float (point-max)))))
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(- nyan-bar-length +nyan-cat-size+))
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100)))
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(defun catface () (aref +catface+ nyan-cat-face-number))
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(defun catface-index ()
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(min (round (/ (* (round (* 100
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(/ (- (float (point))
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(float (point-min)))
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(float (point-max)))))
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(length (catface)))
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100)) (- (length (catface)) 1)))
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(defun nyan-create ()
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(let* ((rainbows (nyan-number-of-rainbows))
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(outerspaces (- nyan-bar-length rainbows +nyan-cat-size+))
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(rainbow-string "")
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(rainbow-start t)
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(nyancat-string (propertize
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(aref (catface) (catface-index))
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'display (nyan-get-anim-frame rainbows (eq rainbows 0))))
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(outerspace-string ""))
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(if (and nyan-animate-nyancat
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(not (equal nyan-last-rainbow-count rainbows)))
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(nyan-start-animation))
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(setq nyan-last-rainbow-count rainbows)
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(dotimes (number rainbows)
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(setq rainbow-string
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(concat rainbow-string
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(propertize
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"|"
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'display (create-image (if rainbow-start +nyan-rainbow-start-image+
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+nyan-rainbow-image+)
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'xpm nil
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:ascent
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(if (and nyan-wavy-trail
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(or (not nyan-animate-nyancat)
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(and nyan-animate-nyancat nyan-animation-timer)))
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(nyan-wavy-rainbow-ascent number)
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'center)))))
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(setq rainbow-start nil)
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)
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(dotimes (number outerspaces)
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(setq outerspace-string
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(concat outerspace-string
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(propertize
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"-"
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'display (create-image +nyan-outerspace-image+
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'xpm nil :ascent (if nyan-animation-timer 95 'center))))))
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;; Compute Nyan Cat string.
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(concat rainbow-string
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nyancat-string
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outerspace-string)))
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(defvar nyan-old-car-mode-line-position nil)
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;;;###autoload
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(define-minor-mode nyan-mode
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"Use NyanCat to show buffer size and position in mode-line.
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You can customize this minor mode, see option `nyan-mode'.
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Note: If you turn this mode on then you probably want to turn off
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option `scroll-bar-mode'."
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:global t
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:group 'nyan
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(if nyan-mode
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(progn
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(unless nyan-old-car-mode-line-position
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(setq nyan-old-car-mode-line-position (car mode-line-position)))
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(setcar mode-line-position '(:eval (list (nyan-create)))))
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(setcar mode-line-position nyan-old-car-mode-line-position)))
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(provide 'nyan-mode)
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;;; nyan-mode.el ends here
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