-;;;; clef.scm -- Clef settings
+;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
-;;;; source file of the GNU LilyPond music typesetter
+;;;; Copyright (C) 2004--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
;;;;
-;;;; (c) 2004--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
+;;;; 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/>.
;; (name . (glyph clef-position octavation))
("petrucci-c5" . ("clefs.petrucci.c5" 4 0))
("petrucci-f3" . ("clefs.petrucci.f" 0 0))
("petrucci-f4" . ("clefs.petrucci.f" 2 0))
+ ("petrucci-f5" . ("clefs.petrucci.f" 4 0))
("petrucci-f" . ("clefs.petrucci.f" 2 0))
("petrucci-g" . ("clefs.petrucci.g" -2 0))))
("clefs.petrucci.g" . -4)))
(define-public (make-clef-set clef-name)
- "Generate the clef setting commands for a clef with name CLEF-NAME."
+ "Generate the clef setting commands for a clef with name @var{clef-name}."
(define (make-prop-set props)
(let ((m (make-music 'PropertySet)))
(map (lambda (x) (set! (ly:music-property m (car x)) (cdr x))) props)
(let ((e '())
(c0 0)
(oct 0)
- (match (string-match "^(.*)([_^])([0-9]+)$" clef-name)))
+ (match (string-match "^(.*)([_^])([1-9][0-9]*)$" clef-name)))
(if match
(begin
(set! clef-name (match:substring match 1))
(set! oct
(* (if (equal? (match:substring match 2) "^") -1 1)
(- (string->number (match:substring match 3)) 1)))))
- (set! e (assoc clef-name supported-clefs))
- (if (pair? e)
+ (set! e (assoc-get clef-name supported-clefs))
+ (if e
(let* ((musics (map make-prop-set
- `(((symbol . clefGlyph) (value . ,(cadr e)))
+ `(((symbol . clefGlyph) (value . ,(car e)))
((symbol . middleCClefPosition)
(value . ,(+ oct
- (caddr e)
- (cdr (assoc (cadr e) c0-pitch-alist)))))
- ((symbol . clefPosition) (value . ,(caddr e)))
+ (cadr e)
+ (assoc-get (car e) c0-pitch-alist))))
+ ((symbol . clefPosition) (value . ,(cadr e)))
((symbol . clefOctavation) (value . ,(- oct))))))
(recalc-mid-C (make-music 'ApplyContext))
(seq (make-music 'SequentialMusic
(sort (map car supported-clefs) string<?)))
(make-music 'Music)))))
+(define-public (make-cue-clef-set clef-name)
+ "Generate the clef setting commands for a cue clef with name
+@var{clef-name}."
+ (define (make-prop-set props)
+ (let ((m (make-music 'PropertySet)))
+ (map (lambda (x) (set! (ly:music-property m (car x)) (cdr x))) props)
+ m))
+ (let ((e '())
+ (c0 0)
+ (oct 0)
+ (match (string-match "^(.*)([_^])([1-9][0-9]*)$" clef-name)))
+ (if match
+ (begin
+ (set! clef-name (match:substring match 1))
+ (set! oct
+ (* (if (equal? (match:substring match 2) "^") -1 1)
+ (- (string->number (match:substring match 3)) 1)))))
+ (set! e (assoc-get clef-name supported-clefs))
+ (if e
+ (let* ((musics (map make-prop-set
+ `(((symbol . cueClefGlyph) (value . ,(car e)))
+ ((symbol . middleCCuePosition)
+ (value . ,(+ oct
+ (cadr e)
+ (assoc-get (car e) c0-pitch-alist))))
+ ((symbol . cueClefPosition) (value . ,(cadr e)))
+ ((symbol . cueClefOctavation) (value . ,(- oct))))))
+ (recalc-mid-C (make-music 'ApplyContext))
+ (seq (make-music 'SequentialMusic
+ 'elements (append musics (list recalc-mid-C))))
+ (csp (make-music 'ContextSpeccedMusic)))
+ (set! (ly:music-property recalc-mid-C 'procedure) ly:set-middle-C!)
+ (context-spec-music seq 'Staff))
+ (begin
+ (ly:warning (_ "unknown clef type `~a'") clef-name)
+ (ly:warning (_ "supported clefs: ~a")
+ (string-join
+ (sort (map car supported-clefs) string<?)))
+ (make-music 'Music)))))
+
+
+(define-public (make-cue-clef-unset)
+ "Reset the clef settings for a cue clef."
+ (define (make-prop-unset props)
+ (let ((m (make-music 'PropertyUnset)))
+ (set! (ly:music-property m (car props)) (cdr props))
+ m))
+ (let* ((musics (map make-prop-unset
+ `((symbol . cueClefGlyph)
+ (symbol . middleCCuePosition)
+ (symbol . cueClefPosition)
+ (symbol . cueClefOctavation))))
+ (recalc-mid-C (make-music 'ApplyContext))
+ (seq (make-music 'SequentialMusic
+ 'elements (append musics (list recalc-mid-C))))
+ (csp (make-music 'ContextSpeccedMusic)))
+ (set! (ly:music-property recalc-mid-C 'procedure) ly:set-middle-C!)
+ (context-spec-music seq 'Staff)))
+
+
+;; a function to add new clefs at runtime
+(define-public (add-new-clef clef-name clef-glyph clef-position octavation c0-position)
+ "Append the entries for a clef symbol to supported clefs and
+@code{c0-pitch-alist}."
+ (set! supported-clefs
+ (acons clef-name (list clef-glyph clef-position octavation) supported-clefs))
+ (set! c0-pitch-alist
+ (acons clef-glyph c0-position c0-pitch-alist)))
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