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| %%%% This file is part of LilyPond, the GNU music typesetter. | |
| %%%% | |
| %%%% Copyright (C) 2008--2020 Carl D. Sorensen <[email protected]> | |
| %%%% | |
| %%%% LilyPond 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 of the License, or | |
| %%%% (at your option) any later version. | |
| %%%% | |
| %%%% LilyPond 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 LilyPond. If not, see <http://www.gnu.org/licenses/>. | |
| \version "2.19.22" | |
| % chord-shape-table is a hash-table of chord shapes | |
| % in the form of diagram-descriptions that can be | |
| % fret-diagram-verbose markup-llsts or | |
| % fret-diagram-terse strings. | |
| % The hash keys are pairs of scheme symbols and | |
| % string tunings. For convenience, the symbols in | |
| % this file are LilyPond chordmode chord descriptions, | |
| % but that is unnecessary. | |
| % music function for adding a chord shape to | |
| % chord-shape-table | |
| addChordShape = | |
| #(define-void-function (key-symbol tuning shape-definition) | |
| (symbol? pair? string-or-pair?) | |
| (_i "Add chord shape @var{shape-definition} to the @var{chord-shape-table} | |
| hash with the key @code{(cons @var{key-symbol} @var{tuning})}.") | |
| (hash-set! chord-shape-table | |
| (cons key-symbol tuning) | |
| shape-definition)) | |
| #(define (chord-shape shape-code tuning) | |
| (get-chord-shape shape-code tuning chord-shape-table)) | |
| % scheme function for copying/creating fretboard tables | |
| #(define (make-fretboard-table . rest) | |
| "Create a new fretboard table. @code{rest} is an optional table name. | |
| If present, the new fretboard table starts as a copy of the fretboard | |
| table @code{rest}." | |
| (if (null? rest) | |
| (make-hash-table 101) | |
| (let ((source-table (car rest))) | |
| (hash-fold | |
| (lambda (key value tab) | |
| (hash-set! tab key value) | |
| tab) | |
| (make-hash-table 101) | |
| source-table)))) | |
| % music function for adding a predefined diagram to | |
| % fretboard-table | |
| storePredefinedDiagram = | |
| #(define-void-function | |
| (fretboard-table chord tuning diagram-definition) | |
| (hash-table? ly:music? pair? string-or-pair?) | |
| (_i "Add predefined fret diagram defined by @var{diagram-definition} | |
| for the chord pitches @var{chord} and the stringTuning @var{tuning}.") | |
| (let* ((pitches (event-chord-pitches | |
| (car (extract-named-music chord 'EventChord)))) | |
| (hash-key (cons tuning pitches)) | |
| (verbose-definition (if (string? diagram-definition) | |
| (parse-terse-string | |
| (remove-whitespace diagram-definition)) | |
| diagram-definition))) | |
| (hash-set! fretboard-table | |
| hash-key | |
| verbose-definition))) | |