// ┌────────────────────────────────────────────────────────────────────┐ \\
// │ Raphaël 2.1.0 - JavaScript Vector Library │ \\
// ├────────────────────────────────────────────────────────────────────┤ \\
// │ Copyright © 2008-2012 Dmitry Baranovskiy (http://raphaeljs.com) │ \\
// │ Copyright © 2008-2012 Sencha Labs (http://sencha.com) │ \\
// ├────────────────────────────────────────────────────────────────────┤ \\
// │ Licensed under the MIT (http://raphaeljs.com/license.html) license.│ \\
// └────────────────────────────────────────────────────────────────────┘ \\
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/**
* JTab - Javascript/CSS Guitar Chord and Tab Notation for the Web.
* Version 1.3.1
* Written by Paul Gallagher (http://tardate.com), 2009. (original version and maintainer)
* Contributions:
* Jason Ong (https://github.com/jasonong)
* Bruno Bornsztein (https://github.com/bborn)
* Binary Bit LAN (https://github.com/binarybitlan)
* See:
* http://jtab.tardate.com : more information on availability, configuration and use.
* http://github.com/tardate/jtab/tree/master : source code repository, wiki, documentation
*
* This library also depends on the following two libraries that must be loaded for it to work:
* jQuery - http://www.jquery.com/
* Raphael - http://raphaeljs.com/
*
*
* This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General
* Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
//
// define the jtab class
//
var jtab = {
Version : '1.3.1',
element_count:0, //TODO:
Strings : {
AboutDialog : '<html><head><title>About jTab</title></head><body style=""><p style="">jTab version: {V}</p><p><a href="http://jtab.tardate.com" target="_blank">http://jtab.tardate.com</a></p><p><input type="button" class="close" value="OK" onClick="window.close()"/></p></body></html>'
},
Chords : {
// chord data - currently explicit representation for 6 string guitar, standard tuning only, and
// each chord is an array of alternate positions
// 0 : 1st (open) position
// 1 : 1st barre position, generally at 12/13/14th fret
// - minimum, only required for CAGED chords where open strings are used in the 1st (open) position
// since the main purpose of this is to provide barre fingering positions for CAGED-based chords
// 2.. : alternative positions/fingerings
// each position is an array comprising: 1. base fret (0==nut); 2. 6x note definitions (strings 6,5,4,3,2,1)
// each note is an array: (fret position), (left hand fingering if applicable 1,2,3,4,T)
// fret position: -1 = muted/not played; 0 = open; 1,2,3... = fret position
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Fdim7 : [ [ 0, [-1 ], [2,3], [0 ], [1,1], [0 ], [1,2] ], [ ] ],
Faug : [ [ 0, [1,1], [-1 ], [3,4], [2,2], [2,3], [1,1] ], [ ] ],
"F#" : [ [ 0, [2,1], [4,3], [4,4], [3,2], [2,1], [2,1] ], [ ] ],
"F#m" : [ [ 0, [2,1], [4,3], [4,4], [2,1], [2,1], [2,1] ], [ ] ],
"F#6" : [ [ 0, [2,1], [4,3], [-1 ], [3,2], [4,4], [-1 ] ], [ ] ],
"F#m6" : [ [ 0, [-1 ], [-1 ], [1,1], [2,2], [2,3], [2,4] ], [ ] ],
"F#69" : [ [ 0, [2,2], [1,1], [1,1], [1,1], [2,3], [2,4] ], [ ] ],
"F#7" : [ [ 0, [2,1], [4,3], [2,1], [3,2], [2,1], [2,1] ], [ ] ],
"F#m7" : [ [ 0, [2,1], [4,3], [4,4], [2,1], [5,4], [2,1] ], [ ] ],
"F#maj7": [ [ 0, [2,1], [-1 ], [3,3], [3,4], [2,2], [-1 ] ], [ ] ],
"F#7b5" : [ [ 0, [2,2], [-1 ], [2,3], [3,4], [1,1], [-1 ] ], [ ] ],
"F#7#5" : [ [ 0, [2,2], [-1 ], [2,3], [3,4], [3,4], [-1 ] ], [ ] ],
"F#m7b5": [ [ 0, [-1 ], [-1 ], [2,2], [2,3], [1,1], [2,4] ], [ ] ],
"F#7b9" : [ [ 0, [2,2], [1,1], [2,3], [0 ], [2,4], [0 ] ], [ ] ],
"F#9" : [ [ 0, [2,1], [4,3], [2,1], [3,2], [2,1], [4,4] ], [ ] ],
"F#m9" : [ [ 0, [3,3], [0 ], [3,4], [1,1], [2,3], [2,3] ], [ ] ],
"F#maj9": [ [ 0, [2,1], [-1 ], [3,2], [3,3], [-1 ], [4,4] ], [ ] ],
"F#add9": [ [ 0, [2,2], [1,1], [-1 ], [1,1], [2,3], [2,4] ], [ ] ],
"F#13" : [ [ 0, [2,1], [4,3], [2,1], [3,2], [4,4], [2,1] ], [ ] ],
"F#sus2": [ [ 0, [2,2], [-1 ], [-1 ], [1,1], [2,3], [2,4] ], [ ] ],
"F#sus4": [ [ 0, [2,1], [4,2], [4,3], [4,4], [2,1], [2,1] ], [ ] ],
"F#dim" : [ [ 0, [-1 ], [-1 ], [1,1], [2,3], [1,2], [2,4] ], [ ] ],
"F#dim7": [ [ 0, [-1 ], [-1 ], [1,1], [2,3], [1,2], [2,4] ], [ ] ],
"F#aug" : [ [ 0, [2,1], [-1 ], [4,4], [3,2], [3,3], [2,1] ], [ ] ],
G : [ [ 0, [3,3], [2,2], [0 ], [0 ], [0 ], [3,4] ], [ 12, [15,3], [14,2], [12,1], [12,1], [12,1], [15,4] ] ],
Gm : [ [ 0, [3,2], [1,1], [0 ], [0 ], [3,3], [3,4] ], [ 12, [15,3], [13,2], [12,1], [12,1], [15,4], [15,4] ] ],
G6 : [ [ 0, [3,3], [2,2], [0 ], [0 ], [0 ], [0 ] ], [ 12, [15,4], [14,3], [12,1], [12,1], [12,1], [12,1] ] ],
Gm6 : [ [ 0, [-1 ], [-1 ], [2,1], [3,3], [3,3], [3,3] ], [ ] ],
G69 : [ [ 0, [3,3], [2,1], [0 ], [2,2], [0 ], [0 ] ], [ 12, [15,4], [14,3], [12,1], [14,2], [12,1], [12,1] ] ],
G7 : [ [ 0, [3,3], [2,2], [0 ], [0 ], [0 ], [1,1] ], [ 12, [15,4], [14,3], [12,1], [12,1], [12,1], [13,2] ] ],
Gm7 : [ [ 0, [-1 ], [1,1], [3,3], [0 ], [3,4], [-1 ] ], [ 12, [-1 ], [13,2], [15,3], [12,1], [15,4], [-1 ] ] ],
Gmaj7 : [ [ 0, [3,3], [2,2], [0 ], [0 ], [0 ], [2,1] ], [ 12, [15,3], [14,2], [12,1], [12,1], [12,1], [14,4] ] ],
"G7b5" : [ [ 0, [3,2], [-1 ], [3,3], [4,4], [2,1], [-1 ] ], [ ], [ 4, [-1 ], [-1 ], [5,1], [6,2], [6,3], [7,4] ] ],
"G7#5" : [ [ 0, [3,1], [-1 ], [3,2], [4,3], [4,4], [-1 ] ], [ ] ],
Gm7b5 : [ [ 2, [3,1], [4,2], [3,1], [3,1], [6,4], [3,1] ], [ ] ],
G7b9 : [ [ 0, [3,4], [2,3], [0 ], [1,1], [0 ], [1,2] ], [ 12, [15,4], [14,3], [12,1], [13,2], [12,1], [13,] ] ],
G9 : [ [ 0, [3,3], [-1 ], [0 ], [2,2], [0 ], [1,1] ], [ 12, [15,4], [-1 ], [12,1], [14,3], [12,1], [13,2] ] ],
Gm9 : [ [ 2, [3,1], [5,3], [3,1], [3,1], [3,1], [5,4] ], [ ] ],
Gmaj9 : [ [ 0, [3,3], [-1 ], [0 ], [2,1], [0 ], [2,2] ], [ 12, [15,4], [-1 ], [12,1], [14,3], [12,1], [14,2] ] ],
Gadd9 : [ [ 0, [3,2], [0 ], [0 ], [0 ], [0 ], [3,3] ], [ 12, [15,3], [12,1], [12,1], [12,1], [12,1], [15,4] ] ],
G13 : [ [ 0, [3,2], [2,1], [3,3], [0 ], [0 ], [0 ] ], [ 12, [15,3], [14,2], [15,3], [12,1], [12,1], [12,1] ] ],
Gsus2 : [ [ 0, [3,1], [0 ], [0 ], [0 ], [3,3], [3,4] ], [ 12, [15,2], [12,1], [12,1], [12,1], [15,3], [15,4] ] ],
Gsus4 : [ [ 2, [3,1], [5,2], [5,3], [5,4], [3,1], [3,1] ], [ ] ],
Gdim : [ [ 2, [-1 ], [-1 ], [5,2], [6,4], [5,3], [3,1] ], [ ] ],
Gdim7 : [ [ 0, [-1 ], [-1 ], [2,1], [3,3], [2,2], [3,4] ], [ ] ],
Gaug : [ [ 0, [3,1], [-1 ], [5,4], [4,2], [4,3], [3,1] ], [ ] ],
"G#" : [ [ 0, [4,4], [3,3], [1,1], [1,1], [1,1], [-1 ] ], [ ] ],
"G#m" : [ [ 0, [-1 ], [2,2], [1,1], [1,1], [4,4], [4,4] ], [ ] ],
"G#6" : [ [ 0, [-1 ], [-1 ], [1,1], [1,1], [1,1], [1,1] ], [ ] ],
"G#m6" : [ [ 0, [-1 ], [-1 ], [1,1], [1,2], [0 ], [1,3] ], [ ] ],
"G#69" : [ [ 0, [4,2], [3,1], [3,1], [3,1], [4,3], [4,4] ], [ ] ],
"G#7" : [ [ 0, [-1 ], [-1 ], [1,1], [1,1], [1,1], [2,2] ], [ ] ],
"G#m7" : [ [ 3, [4,1], [6,3], [4,1], [4,1], [7,4], [4,1] ], [ ] ],
"G#maj7": [ [ 0, [-1 ], [-1 ], [1,1], [1,1], [1,1], [3,3] ], [ ] ],
"G#7b5" : [ [ 2, [4,2], [-1 ], [4,3], [5,4], [3,2], [-1 ] ], [ ] ],
"G#7#5" : [ [ 3, [4,1], [-1 ], [4,2], [5,3], [5,4], [-1 ] ], [ ] ],
"G#m7b5": [ [ 0, [4,1], [5,2], [4,1], [4,1], [7,4], [4,1] ], [ ] ],
"G#7b9" : [ [ 0, [4,3], [3,2], [4,4], [2,1], [-1 ], [-1 ] ], [ ] ],
"G#9" : [ [ 0, [2,2], [1,1], [1,1], [1,1], [1,1], [2,4] ], [ ] ],
"G#m9" : [ [ 0, [2,2], [1,1], [1,1], [1,1], [0 ], [2,4] ], [ ] ],
"G#maj9": [ [ 2, [4,2], [3,1], [5,4], [3,1], [4,3], [-1 ] ], [ ] ],
"G#add9": [ [ 0, [-1 ], [1,1], [1,1], [1,1], [1,1], [-1 ] ], [ ] ],
"G#13" : [ [ 0, [4,3], [3,2], [4,4], [1,1], [1,1], [1,1] ], [ ] ],
"G#sus2": [ [ 0, [-1 ], [1,1], [1,2], [1,3], [-1 ], [-1 ] ], [ ] ],
"G#sus4": [ [ 0, [-1 ], [-1 ], [1,1], [1,1], [2,2], [4,4] ], [ ] ],
"G#dim" : [ [ 0, [-1 ], [-1 ], [0 ], [1,1], [0 ], [1,2] ], [ ] ],
"G#dim7": [ [ 0, [-1 ], [-1 ], [0 ], [1,1], [0 ], [1,2] ], [ ] ],
"G#aug" : [ [ 0, [0,-1], [3,4], [2,3], [1,1], [1,2], [0,-1] ], [ ] ],
A : [ [ 0, [-1], [0 ], [2,2], [2,1], [2,3], [0 ] ], [ 12, [-1,-1], [12,1], [14,2], [14,3], [14,4], [12,1] ] ],
Am : [ [ 0, [-1], [0 ], [2,2], [2,3], [1,1], [0 ] ], [ 12, [-1,-1], [12,1], [14,3], [14,4], [13,2], [12,1] ] ],
A6 : [ [ 0, [-1], [0 ], [2,1], [2,1], [2,1], [2,1] ], [ 12, [-1,-1], [12,1], [14,3], [14,3], [14,3], [14,3] ] ],
Am6 : [ [ 0, [-1], [0 ], [2,2], [2,3], [1,1], [2,4] ], [ 12, [-1,-1], [12,1], [14,3], [14,3], [13,2], [14,4] ] ],
A69 : [ [ 3, [5,2], [4,1], [4,1], [4,1], [5,3], [5,4] ], [ ] ],
A7 : [ [ 0, [-1], [0 ], [2,2], [0 ], [2,3], [0 ] ], [ 12, [-1,-1], [12,1], [14,2], [12,1], [14,3], [12,1] ] ],
Am7 : [ [ 0, [-1], [0 ], [2,2], [0 ], [1,1], [0 ] ], [ 12, [-1,-1], [12,1], [14,3], [12,1], [13,2], [12,1] ] ],
Amaj7 : [ [ 0, [-1], [0 ], [2,2], [1,1], [2,3], [0 ] ], [ 12, [-1,-1], [12,1], [14,3], [13,2], [14,4], [12,1] ] ],
A7b5 : [ [ 3, [5,2], [-1 ], [5,3], [6,4], [4,1], [-1 ] ], [ ] ],
"A7#5" : [ [ 4, [5,1], [-1 ], [5,2], [6,3], [6,4], [-1 ] ], [ ] ],
Am7b5 : [ [ 0, [-1], [-1 ], [1,1], [2,3], [1,2], [3,4] ], [ ] ],
A7b9 : [ [ 0, [-1], [0 ], [2,1], [3,3], [2,2], [3,4] ], [ 12, [-1,-1], [12,''], [14,1], [15,3], [14,2], [15,4] ] ],
A9 : [ [ 0, [-1], [0 ], [2,1], [4,4], [2,2], [3,3] ], [ 12, [-1], [12,], [14,1], [16,4], [14,2], [15,3] ] ],
Am9 : [ [ 0, [-1], [0 ], [1,1], [1,1], [1,1], [3,4] ], [ 12, [-1], [12,1], [13,2], [13,2], [13,2], [15,4] ] ],
Amaj9 : [ [ 0, [-1], [0 ], [2,1], [4,3], [2,1], [4,4] ], [ 12, [-1], [12, ], [14,1], [16,3], [14,1], [16,4] ] ],
Aadd9 : [ [ 0, [-1], [0 ], [2,2], [2,3], [0 ], [0 ] ], [ 12, [-1], [12,1], [14,3], [14,4], [12,1], [12,1] ] ],
A13 : [ [ 0, [-1], [0 ], [2,1], [0 ], [2,2], [3,3] ], [ 12, [-1], [12,1], [14,2], [12,1], [14,3], [15,4] ] ],
Asus2 : [ [ 0, [-1], [0 ], [2,1], [2,2], [0 ], [0 ] ], [ 12, [-1], [12,1], [14,3], [14,4], [12,1], [12,1] ] ],
Asus4 : [ [ 0, [-1], [0 ], [2,1], [2,2], [3,3], [0 ] ], [ 12, [-1], [12,1], [14,2], [14,3], [15,4], [12,1] ] ],
Adim : [ [ 0, [-1], [0 ], [1,1], [2,3], [1,2], [-1 ] ], [ 12, [-1], [12,1], [13,2], [14,4], [13,3], [-1 ] ] ],
Adim7 : [ [ 0, [-1], [-1 ], [1,1], [2,3], [1,2], [2,4] ], [ ] ],
Aaug : [ [ 0, [-1], [0 ], [3,4], [2,2], [2,3], [1,1] ], [ 12, [-1], [12,], [15,4], [14,2], [14,3], [13,1] ] ],
"Bb" : [ [ 0, [-1], [1,1], [3,3], [3,3], [3,3], [1,1] ], [ ] ],
"Bbm" : [ [ 0, [-1], [1,1], [3,3], [3,4], [2,2], [1,1] ], [ ] ],
"Bb6" : [ [ 0, [-1], [1,1], [3,3], [3,3], [3,3], [3,3] ], [ ] ],
"Bbm6" : [ [ 0, [-1], [1,1], [3,3], [0 ], [2,2], [-1 ] ], [ ] ],
"Bb69" : [ [ 0, [-1], [1,1], [0 ], [0 ], [1,2], [1,3] ], [ ] ],
"Bb7" : [ [ 0, [-1], [1,1], [3,3], [1,1], [4,4], [1,1] ], [ ] ],
"Bbm7" : [ [ 0, [-1], [1,1], [3,3], [1,1], [2,2], [1,1] ], [ ] ],
"Bbmaj7": [ [ 0, [-1], [1,1], [3,3], [2,2], [3,4], [1,1] ], [ ] ],
"Bb7b5" : [ [ 4, [6,2], [-1 ], [6,3], [7,4], [5,1], [-1 ] ], [ ] ],
"Bb7#5" : [ [ 5, [6,1], [-1 ], [6,2], [7,3], [7,4], [-1 ] ], [ ] ],
"Bbm7b5": [ [ 0, [-1], [1,1], [-1 ], [1,2], [2,3], [-1 ] ], [ ] ],
"Bb7b9" : [ [ 6, [-1], [-1 ], [8,2], [7,1], [9,4], [7,1] ], [ ] ],
"Bb9" : [ [ 0, [1,1], [1,2], [0 ], [1,3], [1,3], [1,3] ], [ ] ],
"Bbm9" : [ [ 5, [-1], [-1 ], [-1 ], [6,1], [6,1], [8,4] ], [ ] ],
"Bbmaj9": [ [ 0, [-1], [1,1], [0 ], [2,4], [1,2], [1,3] ], [ ] ],
"Bbadd9": [ [ 0, [1,1], [1,1], [0 ], [3,4], [1,1], [1,1] ], [ ] ],
"Bb13" : [ [ 0, [-1 ], [1,1], [0 ], [1,2], [3,4], [3,4] ], [ ] ],
"Bbsus2": [ [ 0, [-1], [1,1], [3,3], [3,4], [1,1], [1,1] ], [ ] ],
"Bbsus4": [ [ 0, [-1], [1,1], [3,2], [3,3], [4,4], [1,1] ], [ ] ],
"Bbdim" : [ [ 0, [-1], [1,1], [2,2], [3,4], [2,3], [-1 ] ], [ ] ],
"Bbdim7": [ [ 0, [-1], [-1 ], [2,1], [3,3], [2,2], [3,4] ], [ ] ],
"Bbaug" : [ [ 0, [-1], [1,1], [4,4], [3,2], [3,3], [2,1] ], [ ] ],
B : [ [ 0, [ -1], [2,1], [4,3], [4,3], [4,3], [2,1] ], [ ] ],
Bm : [ [ 0, [ -1], [2,1], [4,3], [4,4], [3,2], [2,1] ], [ ] ],
B6 : [ [ 0, [ -1], [2,1], [4,3], [4,3], [4,3], [4,3] ], [ ] ],
Bm6 : [ [ 0, [ -1], [-1 ], [4,2], [4,3], [3,1], [4,4] ], [ ] ],
B69 : [ [ 0, [ -1], [2,2], [1,1], [1,1], [2,3], [2,4] ], [ ] ],
B7 : [ [ 0, [ -1], [2,2], [1,1], [2,3], [0 ], [2,4] ], [ ] ],
Bm7 : [ [ 0, [ -1], [2,2], [0 ], [2,3], [0 ], [2,4] ], [ ] ],
Bmaj7 : [ [ 0, [ -1], [2,1], [4,3], [3,2], [4,4], [2,1] ], [ ] ],
B7b5 : [ [ 5, [7,2], [-1 ], [7,3], [8,4], [6,1], [-1 ] ], [ ] ],
"B7#5" : [ [ 0, [ -1], [2,2], [1,1], [2,3], [0 ], [3,4] ], [ ] ],
"Bm7b5" : [ [ 0, [-1 ], [2,2], [0 ], [2,3], [0 ], [1,1] ], [ ] ],
B7b9 : [ [ 0, [ -1], [2,2], [1,1], [2,3], [1,1], [2,4] ], [ ] ],
B9 : [ [ 6, [7,1], [9,3], [7,1], [8,2], [7,1], [9,4] ], [ ] ],
Bm9 : [ [ 0, [ -1], [2,1], [0 ], [2,2], [2,3], [2,4] ], [ ] ],
Bmaj9 : [ [ 0, [ -1], [2,2], [1,1], [3,4], [2,3], [2,3] ], [ ] ],
Badd9 : [ [ 0, [ -1], [2,1], [4,3], [4,4], [2,1], [2,1] ], [ ] ],
B13 : [ [ 0, [-1 ], [2,2], [1,1], [2,3], [0 ], [4,4] ], [ ] ],
Bsus2 : [ [ 0, [ -1], [2,1], [4,3], [4,4], [2,1], [2,1] ], [ ] ],
Bsus4 : [ [ 0, [ -1], [2,1], [4,2], [4,3], [5,4], [2,1] ], [ ] ],
Bdim : [ [ 0, [-1], [2,1], [3,2], [4,4], [3,3], [-1 ] ], [ ] ],
Bdim7 : [ [ 0, [-1], [-1 ], [0 ], [1,1], [0 ], [1,2] ], [ ] ],
Baug : [ [ 0, [-1], [2,1], [5,4], [4,2], [4,3], [3,1] ], [ ] ]
},
WesternScale: {
BaseNotes: { // for each: array[ translated western scale note, caged base, base fret ]
'C' : [ 'C' , 'C', 0 ],
'C#': [ 'C#', 'C', 1 ],
'Db': [ 'C#', 'C', 1 ],
'D' : [ 'D' , 'D', 0 ],
'D#': [ 'Eb', 'D', 1 ],
'Eb': [ 'Eb', 'D', 1 ],
'E' : [ 'E' , 'E', 0 ],
'F' : [ 'F' , 'E', 1 ],
'F#': [ 'F#', 'E', 2 ],
'Gb': [ 'F#', 'E', 2 ],
'G' : [ 'G' , 'G', 0 ],
'G#': [ 'G#', 'G', 1 ],
'Ab': [ 'G#', 'G', 1 ],
'A' : [ 'A' , 'A', 0 ],
'A#': [ 'Bb', 'A', 1 ],
'Bb': [ 'Bb', 'A', 1 ],
'B' : [ 'B' , 'A', 2 ]
},
BaseIntervals: ['C', 'C#', 'D', 'Eb', 'E', 'F', 'F#', 'G', 'G#', 'A', 'Bb', 'B']
},
ChordList : function() {
var list = [];
for (var key in jtab.Chords) {
list.push( key );
}
return list;
},
/*
* Usage: jtab.AddChord("ChordName", Chord-Array)
* Example of Add: jtab.AddChord("Dsus4l", [ [ 0, [-1 ], [-1 ], [3,2], [2,1], [3,3], [3,4] ], [ 12, [-1,-1], [-1,-1], [12,1], [14,2], [15,3], [15,4] ] ]);
* Example of Update: jtab.AddChord("A", [ [ 0, [-1], [0 ], [2,3], [2,2], [2,1], [0 ] ], [ 12, [-1,-1], [12,1], [14,2], [14,3], [14,4], [12,1] ] ]);
*/
AddChord : function(chordName, chord) {
this.Chords[chordName] = chord;
}
};
//
// define Array utility functions
//
Array.prototype.max_chars = function() {
var max = this[0].length;
var len = this.length;
for (var i = 1; i < len; i++) if (this[i].length > max) max = this[i].length;
return max;
}
//
// define jtabChord class
// public members:
// isValid = whether valid chord defined
// isCaged = whether chord is CAGED type
// isCustom = whether chord is a custom fingering
// fullChordName = full chord name, including position e.g. D#m7:3
// chordName = chord name, without position e.g. D#m7
// baseName = translated chord name (B <-> #), without position e.g. Ebm7
// rootNote = root note e.g. D#
// rootExt = root note extension e.g. m7
// cagedBaseShape = caged base shape e.g. D
// cagedBaseFret = caged base fret e.g. 0
// cagedPos = caged position e.g. 3
//
function jtabChord (token) {
this.scale = jtab.WesternScale;
this.baseNotes = this.scale.BaseNotes;
this.baseChords = jtab.Chords;
this.chordArray = null;
this.isValid = false;
this.fullChordName = token;
this.isCustom = ( this.fullChordName.match( /\%/ ) != null )
this.isCaged = ( this.fullChordName.match( /\:/ ) != null )
if (this.isCaged) {
var parts = this.fullChordName.split(':');
this.chordName = parts[0];
this.cagedPos = parts[1];
} else if (this.isCustom){
var parts = this.fullChordName.match( /\[(.+?)\]/ );
if(parts){
this.chordName = parts[1];
} else {
this.chordName = '';
}
} else {
this.chordName = this.fullChordName;
this.cagedPos = 1;
}
this.rootExt = this.chordName.replace(/^[A-G#b]{1,2}/,'');
this.rootNote = this.chordName.substr(0, this.chordName.length - this.rootExt.length);
var baseNoteInfo = this.baseNotes[this.rootNote];
if (baseNoteInfo) {
this.baseName = baseNoteInfo[0] + this.rootExt;
this.cagedBaseShape = baseNoteInfo[1];
this.cagedBaseFret = baseNoteInfo[2];
} else {
this.cagedBaseShape = '';
this.cagedBaseFret = 0;
}
if ( ( this.isCaged ) && ( this.cagedPos > 1 ) ) {
this.setCagedChordArray();
} else if (this.isCustom){
this.setCustomChordArray();
} else {
this.setChordArray(this.baseName);
}
}
jtabChord.prototype.setCustomChordArray = function(){
this.chordArray = new Array();
this.chordArray = this.parseCustomChordArrayFromToken();
};
jtabChord.prototype.parseCustomChordArrayFromToken = function() {
notes = this.fullChordName.replace(/(\%|\[.+\])/g, '');
pairs = notes.split('.');
if (pairs.length < 6){
this.isValid = false;
return;
}
this.isValid = true;
array = [];
for (var i = 0; i < pairs.length; i++){
pair = pairs[i].split('/')
if (pair[0].match(/X/)){
pair = [-1]
}
array.push(pair)
}
// fingeredFrets = array.reject(function(p){
// return p.length === 1
// }).collect(function(p){
// return parseInt(p[0])
// }).flatten().without(0,-1)
// `array` is an array of string/fretnumber pairs like [0,1].
fingeredFrets = jQuery.grep(array, function(pair){
// get only the pairs with two elements
return (pair.length != 1);
}).map(function(pair){
return parseInt(pair[0]);
}).map(function(i){
if ((i != 0) || (i != -1)){
return i;
} else {
return null;
}
})
fingeredFrets = jQuery.grep(fingeredFrets,function(n){
return(n);
});
//find all the fret positions which arent X or 0. I'm sure there's a better way to do this.
min = Math.min.apply( Math, fingeredFrets );
array.unshift(min-1);
return array;
};
jtabChord.prototype.setChordArray = function(chordName) { // clones chord array (position 0) from chord ref data into this object
this.chordArray = new Array();
if (this.baseChords[chordName] === undefined ) {
this.isValid = false;
return;
}
this.isValid = true;
var modelRef = this.baseChords[chordName][0];
this.chordArray[0] = modelRef[0]
for (var i = 1; i < modelRef.length ; i++) {
this.chordArray[i] = modelRef[i]; // TODO: this.chordArray[i] = modelRef[i].clone();
}
};
jtabChord.prototype.setCagedChordArray = function() {
if ( ! this.cagedBaseShape.match( /[CAGED]/ ) ) return;
var caged_index = "CAGED".indexOf(this.cagedBaseShape) + 1; // get 1-based index
var fret_widths = [3,2,3,2,2];
var starting_fret = this.cagedBaseFret;
for (var i = 1; i < this.cagedPos ; i++) {
var index = (caged_index - 1) % 5;
caged_index = ( caged_index >= 5) ? 1 : caged_index + 1;
starting_fret += fret_widths[index];
}
var modelChord = "CAGED".charAt( caged_index - 1 ) + this.rootExt;
this.setChordArray(modelChord);
this.shiftChordArray(starting_fret,modelChord);
};
jtabChord.prototype.shiftChordArray = function(atFret,modelChord) { // shift chord to new fret position
var initFret = this.chordArray[0];
if (atFret != initFret) {
var use_caged_fingering = ( (this.isCaged) && (this.cagedPos > 0) && ( ! ( this.baseChords[modelChord][1][0] === undefined ) ) );
this.chordArray[0] = atFret - 1;
for (var i = 1; i < this.chordArray.length ; i++) {
var fret = (this.chordArray[i][0] >= 0 ) ? this.chordArray[i][0] + atFret - initFret : this.chordArray[i][0];
var finger = (use_caged_fingering) ? this.baseChords[modelChord][1][i][1] : this.chordArray[i][1];
this.chordArray[i] = [ fret , finger ];
}
}
};
//
// define extensions to the Raphael class
//
Raphael.fn.tabtype = 0; // 0 = none, 1 = tab & chord, 2 = chord, 3 = tab
Raphael.fn.has_chord = false;
Raphael.fn.has_tab = false;
Raphael.fn.debug = false;
Raphael.fn.scale = 1;
Raphael.fn.margin_top = 36;
Raphael.fn.margin_bottom = 10;
Raphael.fn.margin_left = 16;
Raphael.fn.margin_right = 10;
Raphael.fn.current_offset = Raphael.fn.margin_left;
Raphael.fn.string_spacing = 16;
Raphael.fn.strings_drawn = 6;
Raphael.fn.fret_spacing = 16;
Raphael.fn.frets_drawn = 4;
Raphael.fn.note_radius = 7;
Raphael.fn.fret_width = Raphael.fn.string_spacing * ( Raphael.fn.strings_drawn - 1 );
Raphael.fn.fret_height = Raphael.fn.fret_spacing * (Raphael.fn.frets_drawn + 0.5);
Raphael.fn.chord_width = Raphael.fn.margin_left + Raphael.fn.fret_width + Raphael.fn.string_spacing + Raphael.fn.margin_right;
Raphael.fn.chord_height = Raphael.fn.margin_top + Raphael.fn.fret_height + Raphael.fn.margin_bottom;
Raphael.fn.tab_current_string = 0; // 1,2,3,4,5,6 or 0 = not set
Raphael.fn.tab_margin_top = 10;
Raphael.fn.tab_top = Raphael.fn.chord_height + Raphael.fn.tab_margin_top;
Raphael.fn.tab_spacing = Raphael.fn.fret_spacing;
Raphael.fn.tab_height = Raphael.fn.tab_spacing * 5;
Raphael.fn.tab_char_width = 8;
Raphael.fn.total_height = Raphael.fn.tab_top + Raphael.fn.tab_height + Raphael.fn.margin_bottom;
Raphael.fn.color = "#000";
Raphael.fn.fingering_text_color = "#fff";
Raphael.fn.tab_text_color = "#000";
// debug helper - puts grid marks on the rendered image
Raphael.fn.debug_grid = function (width) {
// h ticks
this.path(this.svg_params(this.current_offset, 0,0,4)).attr({stroke: this.color, "stroke-width":0.2 })
this.path(this.svg_params( this.current_offset + this.margin_left, 0,0,2)).attr({stroke: this.color, "stroke-width":0.2 })
this.path(this.svg_params( this.current_offset + width - this.margin_right, 0,0,2)).attr({stroke: this.color, "stroke-width":0.2 })
// v ticks
if (this.tabtype == 3) {
this.path(this.svg_params(this.current_offset, this.tab_margin_top,2,0)).attr({stroke: this.color, "stroke-width":0.2 })
} else {
this.path(this.svg_params(this.current_offset, this.margin_top,2, 0)).attr({stroke: this.color, "stroke-width":0.2 })
}
}
// step the current position for drawing
Raphael.fn.increment_offset = function (width) {
w = ( width === undefined ) ? this.chord_width : width;
if (this.debug) this.debug_grid(w);
this.current_offset += w;
this.setSize( this.current_offset, this.total_height );
}
Raphael.fn.svg_params = function(x,y,l1,l2) {
// http://www.w3.org/TR/SVG/paths.html#PathData --helpful reading
var move_line_to = "m"+x+" "+y+"l"+l1+" "+l2
if(arguments.length == 4) return move_line_to
}
// draw the fretboard
Raphael.fn.chord_fretboard = function ( position, chord_name ) {
var fret_left = this.current_offset + this.margin_left;
// conventional fret labels
var fret_labels = [ '', '', '', 'III', '', 'V', '', 'VII', '', 'IX', '', '', 'XII', '', '', 'XV', '', 'XVII', '', 'XIX', '', 'XXI', '' ];
// alternative friendly fret labels. Currently disabled, maybe bring these back as a configurable option?
// var fret_labels = [ '', '1fr', '2fr', '3fr', '4fr', '5fr', '6fr', '7fr', '8fr', '9fr', '10fr', '11fr', '12fr', '13fr', '14fr', '15fr', '16fr', '17fr', '18fr', '19fr', '20fr', '21fr', '' ];
this.text( // chord name
fret_left + 2.5 * this.string_spacing,
this.margin_top - 20,
chord_name).attr({fill: this.tab_text_color, "font-size":"20px"});
var stroke_width = position == 0 ? 3 : 0 // nut
var chord_fretboard_path = this.path(this.svg_params(fret_left,this.margin_top,this.string_spacing * (this.strings_drawn - 1),0))
chord_fretboard_path.attr({stroke: this.color, "stroke-width":stroke_width })
for (var i = 0; i <= this.frets_drawn; i++ ) { // frets
this.path(this.svg_params(fret_left,this.margin_top + (i * this.fret_spacing),this.string_spacing * (this.strings_drawn - 1), 0))
pos = ( fret_labels[ position + i ] === undefined ) ? '' : fret_labels[ position + i ];
if ( pos.length > 0 ) { // draw fret position
this.text(
fret_left + this.fret_width + this.string_spacing * 1.0,
this.margin_top + ( ( i - 0.5 ) * this.fret_spacing),
pos).attr({stroke: this.tab_text_color, "font-size":"12px"});
}
}
for (var i = 0; i < this.strings_drawn; i++ ) {
this.path(this.svg_params(fret_left + (i * this.string_spacing),this.margin_top,0, this.fret_spacing * (this.frets_drawn + 0.5))) // strings
}
this.tab_extend(this.chord_width); // extend the tab if present
}
// draw a stroke (/)
Raphael.fn.stroke = function () {
if (this.has_tab) {
var width = this.tab_char_width * 3;
// extend tab
this.tab_extend(width);
// stroke
var stroke_path = this.path(this.svg_params(this.current_offset + this.tab_char_width, this.tab_top + (3.5 * this.tab_spacing),this.tab_char_width, - 2 * this.tab_spacing))
stroke_path.attr({stroke: this.tab_text_color, "stroke-width":4 })
this.increment_offset(width);
} else if (this.has_chord) {
var dx = this.string_spacing;
var dy = 2 * this.fret_spacing;
this.path(this.svg_params(this.current_offset + this.margin_left,
this.margin_top + this.fret_spacing + dy,dx,-dy)).attr({stroke: this.tab_text_color, "stroke-width":4 })
this.increment_offset( this.margin_left + dx + this.margin_right );
}
}
// draw a bar
Raphael.fn.bar = function () {
if (this.has_tab) {
var width = this.tab_char_width * 2;
// extend tab
this.tab_extend(width);
var bar_stroke=this.path(this.svg_params(this.current_offset + this.tab_char_width, this.tab_top,0, this.tab_height))
this.increment_offset(width);
} else if (this.has_chord) {
var fret_left = this.current_offset + this.margin_left;
var bar_stroke=this.path(this.svg_params(this.current_offset + this.margin_left, this.margin_top,0, 0, this.fret_height))
this.increment_offset( this.margin_left + this.margin_right );
}
bar_stroke.attr({stroke: this.color, "stroke-width":1 })
}
// draw double bar
Raphael.fn.doublebar = function () {
if (this.has_tab) {
var width = this.tab_char_width + 8;
// extend tab
this.tab_extend(width);
// bar
var path_1 = this.path(this.svg_params(this.current_offset + this.tab_char_width, this.tab_top,0, this.tab_height))
var path_2 = this.path(this.svg_params(this.current_offset + this.tab_char_width + 6, this.tab_top,0, this.tab_height ))
this.increment_offset(width);
} else if (this.has_chord) {
var left = this.current_offset + this.margin_left;
var path_1 = this.path(this.svg_params(left, this.margin_top,0, this.fret_height))
var path_2 = this.path(this.svg_params(left + 6, this.margin_top,0, this.fret_height))
this.increment_offset( this.margin_left + 6 + this.margin_right );
}
path_1.attr({stroke: this.color, "stroke-width":1 })
path_2.attr({stroke: this.color, "stroke-width":4 })
}
// draw a note in a chord
Raphael.fn.chord_note = function (position, string_number, note) {
// NB: internal string_number in chords counts from low to high
var fret_number = note[0];
var fret_left = this.current_offset + this.margin_left;
if (fret_number < 0 ) {
// muted/not played
this.text(fret_left + (string_number - 1) * this.string_spacing, this.margin_top - 8, "x").attr({stroke: this.tab_text_color, "font-size":"9px"});
} else if (fret_number == 0 ) {
// open
this.text(fret_left + (string_number - 1) * this.string_spacing, this.margin_top - 8, "o").attr({stroke: this.tab_text_color, "font-size":"9px"});
} else {
var fret_dy = (fret_number - position - 0.5) * this.fret_spacing;
//var circle =
this.circle(
fret_left + (string_number - 1) * this.string_spacing,
this.margin_top + fret_dy, this.note_radius).attr({stroke: this.color, fill: this.color});
if ( ! (note[1] === undefined) ) {
this.text( fret_left + (string_number - 1) * this.string_spacing,
this.margin_top + fret_dy, note[1] ).attr({fill: this.fingering_text_color, "font-size":"12px"});
}
}
if ( this.has_tab && fret_number >= 0 ) {
this.draw_tab_note( (this.strings_drawn - string_number + 1), fret_number, this.margin_left + this.string_spacing * 2.5 );
}
}
// extend the tab drawing area
Raphael.fn.tab_extend = function (width) {
if (this.has_tab == false) return;
for (var i = 0; i < this.strings_drawn; i++ ) {
this.path(this.svg_params(this.current_offset, this.tab_top + (i * this.tab_spacing),width, 0)).attr({stroke: this.color})
}
}
// start the tab
Raphael.fn.tab_start = function () {
if (this.has_tab == false) return;
var width = this.tab_char_width * 3;
// start bar
this.path(this.svg_params(this.current_offset, this.tab_top,0, this.tab_height)).attr({stroke: this.color, "stroke-width":1 })
// extend tab
this.tab_extend(width);
//write TAB
this.text(this.current_offset + this.tab_char_width, this.tab_top + this.tab_spacing * 1.5, "T").attr({stroke: this.color, "font-size":"14px"});
this.text(this.current_offset + this.tab_char_width, this.tab_top + this.tab_spacing * 2.5, "A").attr({stroke: this.color, "font-size":"14px"});
this.text(this.current_offset + this.tab_char_width, this.tab_top + this.tab_spacing * 3.5, "B").attr({stroke: this.color, "font-size":"14px"});
this.increment_offset(width);
}
// draw an individual note in the tab
Raphael.fn.draw_tab_note = function (string_number, token, left_offset) {
// NB: internal string_number in tab counts from high to low
this.text(this.current_offset + left_offset,
this.tab_top + this.tab_spacing * (string_number - 1),
token).attr({fill: this.color, "font-size":"16px"});
}
// gets string number from token $[1-6|EADGBe]
Raphael.fn.get_string_number = function (token) {
var string_number = null;
if ( token.match( /^\$[1-6]/ ) != null ) {
string_number = token.substr(1,1);
} else if ( token.match( /^\$[EADGBe]/ ) != null ) {
string_number = 6 - "EADGBe".indexOf(token.substr(1,1));
}
return string_number;
}
// identify if full chord of notes specified i.e. A:1 = X02220 or C:4 = 8.10.10.9.8.8
// returns:
// false = not a full chord representation
// array = array of notes (low to high)
Raphael.fn.get_fullchord_notes = function (token) {
var rc = false;
if ( token.match( /[^\.xX0-9]/ ) != null ) {
rc = false;
} else {
if ( token.match( /\./ ) != null ) {
rc = token.split('.');
} else {
rc = token.split('');
}
if (rc.length != 6) rc = false;
}
return rc;
}
// draw a token on the tab
Raphael.fn.tab_note = function (token) {
if (this.has_tab == false) return;
if ( token.match( /\$/ ) != null ) { // contains a string specifier
if ( token.match( /\./ ) != null ) { // is a multi-string specifier
var parts = token.split(".");
var width = 2;
for (var i = 0; i < parts.length ; i++) { // get the max length of the multi-string specifiers
if ( parts[i].length > width ) width = parts[i].length;
}
width *= this.tab_char_width + 1;
this.tab_extend( width );
for (var i = 0; i < parts.length ; i++) {
var part = parts[i];
var string_number = this.get_string_number(part);
if (string_number != null) {
this.tab_current_string = string_number;
} else if ( this.tab_current_string > 0 ) {
this.draw_tab_note( this.tab_current_string, part, width * 0.5 );
}
}
this.increment_offset( width );
} else { // just a string setting
this.tab_current_string = this.get_string_number(token);
}
} else {
var fullchord_notes = this.get_fullchord_notes(token);
if ( fullchord_notes ) {
var max_chars = fullchord_notes.max_chars();
var width = this.tab_char_width * (max_chars + 2);
this.tab_extend( width );
for (var i = 0; i < fullchord_notes.length ; i++) {
this.draw_tab_note( 6 - i, fullchord_notes[i], width * 0.5 );
}
this.increment_offset( width );
} else if ( this.tab_current_string > 0 ) { // else draw literal, but only if a current string selected
var width = this.tab_char_width * ( token.length + 2 );
this.tab_extend( width );
this.draw_tab_note( this.tab_current_string, token, width * 0.5 );
this.increment_offset( width );
}
}
}
// main drawing routine entry point: to render a token - chord or tab
Raphael.fn.render_token = function (token) {
var c = new jtabChord(token);
if ( c.isValid ) { // draw chord
var chord = c.chordArray;
// this.chord_fretboard(chord[0], c.fullChordName );
this.chord_fretboard(chord[0], c.chordName );
for (var i = 1; i < chord.length ; i++) {
this.chord_note(chord[0], i, chord[i]);
}
this.increment_offset();
} else {
if (token == "/" ) {
this.stroke();
} else if (token == "|" ) {
this.bar();
} else if (token == "||" ) {
this.doublebar();
} else if ( this.has_tab ) {
this.tab_note( token );
}
}
}
//
// add jtab class methods
//
// determine nature of the token stream
// returns:
// 1 : chord and tab present
// 2 : chord only
// 3 : tab only
// 0 : unknown
jtab.characterize = function (notation) {
var tabtype = 0;
if(notation == undefined){
notation = '';
}
var gotCustomChord = ( notation.match( /[\%]([0-4|T|X])?/ ) != undefined );
var gotNormalChord = ( notation.match( /[^\$][A-G]|^[A-G]/ ) != undefined );
var gotTab = ( ( notation.match( /\$/ ) != null ) || ( notation.match( /[^\%][0-9|Xx|\.]{6,}/ ) != null ) );
var gotChord = gotNormalChord || gotCustomChord ;
// set defaults - apply scaling here (TODO)
Raphael.fn.current_offset = Raphael.fn.margin_left;
if ( gotChord && gotTab ) { // chord and tab
tabtype = 1;
Raphael.fn.has_chord = true;
Raphael.fn.has_tab = true;
Raphael.fn.tab_top = Raphael.fn.chord_height + Raphael.fn.tab_margin_top;
Raphael.fn.total_height = Raphael.fn.tab_top + Raphael.fn.tab_height + Raphael.fn.margin_bottom;
} else if ( gotChord ) { // chord only
tabtype = 2;
Raphael.fn.has_chord = true;
Raphael.fn.has_tab = false;
Raphael.fn.tab_top = Raphael.fn.chord_height + Raphael.fn.tab_margin_top;
Raphael.fn.total_height = Raphael.fn.chord_height;
} else if ( gotTab ) { // tab only
tabtype = 3;
Raphael.fn.has_chord = false;
Raphael.fn.has_tab = true;
Raphael.fn.tab_top = Raphael.fn.tab_margin_top;
Raphael.fn.total_height = Raphael.fn.tab_top + Raphael.fn.tab_height + Raphael.fn.margin_bottom;
}
Raphael.fn.tabtype = tabtype;
return tabtype;
}
// utility function to get calculated style based on given element
jtab.getStyle = function (element, style) {
var value = element.css(style);
if(!value) {
if(document.defaultView) {
value = document.defaultView.getComputedStyle(element[0], "").getPropertyValue(style);
} else if(element.currentStyle) {
value = element.currentStyle[style];
}
}
return value;
}
// set color pallette for the jtab rendering
jtab.setPalette = function (element) {
var fgColor = jtab.getStyle( jQuery(element), 'color' );
if (!fgColor) {
fgColor = '#000';
}
Raphael.fn.color = fgColor;
Raphael.fn.tab_text_color = fgColor;
bgColor = jtab.getStyle( jQuery(element), 'background-color' );
if (!bgColor || (bgColor == 'transparent') || (bgColor == 'rgba(0, 0, 0, 0)')) {
bgColor = '#fff';
}
Raphael.fn.fingering_text_color = bgColor;
}
// Render the tab for a given +element+.
// +element+ is a DOM node
// +notation_text+ is the optional notation to render (if not specified, +element+ text content will be used)
// After rendering, the +element+ will be given the additional "rendered" class.
jtab.render = function (element,notation_text) {
var notation = notation_text || jQuery(element).text() || '';
var tabtype = jtab.characterize( notation );
if (tabtype == 0 ) return;
var rndID="builder_"+jtab.element_count++;
// add the Raphael canvas in its own DIV. this gets around an IE6 issue with not removing previous renderings
var canvas_holder = jQuery('<div id="'+rndID+'"></div>').css({height: Raphael.fn.total_height});
jQuery(element).html(canvas_holder);
jtab.setPalette(element);
canvas = Raphael(rndID, 80, Raphael.fn.total_height );
canvas.tab_start();
var tokens = notation.split(/\s/);
for(var i = 0; i < tokens.length; i++) {
canvas.render_token(tokens[i]);
}
jQuery(element).addClass('rendered');
}
// Render all nodes with class 'jtab'.
// +within_scope+ is an optional selector that will restrict rendering to only those nodes contained within.
jtab.renderimplicit = function(within_scope) {
jQuery('.jtab',within_scope).not('.rendered').each( function(name, index) { jtab.render(this); } );
}
// initialize jtab library.
// Sets up to run implicit rendering on window.onload
jtab.init = function() {
var oldonload = window.onload;
window.onload = function() {
if (typeof oldonload == 'function') oldonload();
jtab.renderimplicit(null);
}
}
// bootstrap jtab when jQuery is ready
jQuery(document).ready(function($) {
jtab.init();
});
config.macros.jtab = {
handler: function() { jtab.renderimplicit(null); }
}