;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
-;;;; (c) 1998--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
-;;;; Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; (c) 1998--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+;;;; Jan Nieuwenhuizen <janneke@gnu.org>
;;;;
;;;; LilyPond is free software: you can redistribute it and/or modify
;;;; it under the terms of the GNU General Public License as published by
;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; clefs
+
+(define-public (clef-transposition-markup oct style)
+ "The transposition sign formatting function. @var{oct} is supposed to be
+a string holding the transposition number, @var{style} determines the
+way the transposition number is displayed."
+ (let* ((delim (if (symbol? style)
+ (case style
+ ((parenthesized) (cons "(" ")"))
+ ((bracketed) (cons "[" "]"))
+ (else (cons "" "")))
+ (cons "" "")))
+ (text (string-concatenate (list (car delim) oct (cdr delim)))))
+
+ (make-vcenter-markup text)))
+
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; metronome marks
-(define-public (format-metronome-markup event context)
- (let ((hide-note (ly:context-property context 'tempoHideNote #f))
- (text (ly:event-property event 'text))
- (dur (ly:event-property event 'tempo-unit))
- (count (ly:event-property event 'metronome-count)))
-
- (metronome-markup text dur count hide-note)))
-
-(define-public (metronome-markup text dur count hide-note)
- (let* ((note-mark (if (and (not hide-note) (ly:duration? dur))
- (make-smaller-markup
- (make-note-by-number-markup (ly:duration-log dur)
- (ly:duration-dot-count dur)
- 1))
- #f))
- (count-markup (cond ((number? count)
- (if (> count 0)
- (make-simple-markup (number->string count))
- #f))
- ((pair? count)
- (make-concat-markup
- (list
- (make-simple-markup (number->string (car count)))
- (make-simple-markup " ")
- (make-simple-markup "–")
- (make-simple-markup " ")
- (make-simple-markup (number->string (cdr count))))))
- (else #f)))
+;; We give 'styled-metronome-markup' an optional argument, 'glyph-font', to
+;; prepare using other fonts than 'fetaMusic.
+;; Currently it ensures that the default-fonts are used by the
+;; markup-command 'note-by-number' in 'metronome-markup' (see below).
+(define*-public
+ ((styled-metronome-markup #:optional (glyph-font 'default))
+ event context)
+ (let ((hide-note (ly:context-property context 'tempoHideNote #f))
+ (text (ly:event-property event 'text))
+ (dur (ly:event-property event 'tempo-unit))
+ (count (ly:event-property event 'metronome-count)))
+
+ (metronome-markup glyph-font text dur count hide-note)))
+
+(define-public format-metronome-markup
+ (styled-metronome-markup))
+
+(define (metronome-markup glyph-font text dur count hide-note)
+ (let* ((note-mark
+ (if (and (not hide-note) (ly:duration? dur))
+ (make-smaller-markup
+ ;; We insert the (default)-font for flag-glyphs and
+ ;; note-head-glyphs to prepare the possibility to use
+ ;; other fonts and to make possible using
+ ;; \override MetronomeMark #'font-name = #<font-name>
+ ;; without affecting the note/flag-glyphs.
+ (make-override-markup (cons 'font-name glyph-font)
+ (make-note-by-number-markup
+ (ly:duration-log dur)
+ (ly:duration-dot-count dur)
+ UP)))
+ #f))
+ (count-markup (cond ((number? count)
+ (if (> count 0)
+ (make-simple-markup
+ (number->string count))
+ #f))
+ ((pair? count)
+ (make-concat-markup
+ (list
+ (make-simple-markup
+ (number->string (car count)))
+ (make-simple-markup " ")
+ (make-simple-markup "–")
+ (make-simple-markup " ")
+ (make-simple-markup
+ (number->string (cdr count))))))
+ (else #f)))
(note-markup (if (and (not hide-note) count-markup)
- (make-concat-markup
- (list
- (make-general-align-markup Y DOWN note-mark)
- (make-simple-markup " ")
- (make-simple-markup "=")
- (make-simple-markup " ")
- count-markup))
- #f))
+ (make-concat-markup
+ (list
+ (make-general-align-markup Y DOWN note-mark)
+ (make-simple-markup " ")
+ (make-simple-markup "=")
+ (make-simple-markup " ")
+ count-markup))
+ #f))
(text-markup (if (not (null? text))
- (make-bold-markup text)
- #f)))
+ (make-bold-markup text)
+ #f)))
(if text-markup
- (if (and note-markup (not hide-note))
- (make-line-markup (list text-markup
- (make-concat-markup
- (list (make-simple-markup "(")
- note-markup
- (make-simple-markup ")")))))
- (make-line-markup (list text-markup)))
- (if note-markup
- (make-line-markup (list note-markup))
- (make-null-markup)))))
+ (if (and note-markup (not hide-note))
+ (make-line-markup (list text-markup
+ (make-concat-markup
+ (list (make-simple-markup "(")
+ note-markup
+ (make-simple-markup ")")))))
+ (make-line-markup (list text-markup)))
+ (if note-markup
+ (make-line-markup (list note-markup))
+ (make-null-markup)))))
(define-public (format-mark-alphabet mark context)
(make-bold-markup (make-markalphabet-markup (1- mark))))
(define-public (format-mark-barnumbers mark context)
(make-bold-markup (number->string (ly:context-property context
- 'currentBarNumber))))
+ 'currentBarNumber))))
(define-public (format-mark-box-letters mark context)
(make-bold-markup (make-box-markup (make-markletter-markup (1- mark)))))
(define-public (format-mark-box-barnumbers mark context)
(make-bold-markup (make-box-markup
- (number->string (ly:context-property context
- 'currentBarNumber)))))
+ (number->string (ly:context-property context
+ 'currentBarNumber)))))
(define-public (format-mark-circle-barnumbers mark context)
(make-bold-markup (make-circle-markup
- (number->string (ly:context-property context
- 'currentBarNumber)))))
+ (number->string (ly:context-property context
+ 'currentBarNumber)))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (format-bass-figure figure event context)
(let* ((fig (ly:event-property event 'figure))
- (fig-markup (if (number? figure)
-
- ;; this is not very elegant, but center-aligning
- ;; all digits is problematic with other markups,
- ;; and shows problems in the (lack of) overshoot
- ;; of feta-alphabet glyphs.
- ((if (<= 10 figure)
- (lambda (y) (make-translate-scaled-markup
- (cons -0.7 0) y))
- identity)
-
- (cond
- ((eq? #t (ly:event-property event 'diminished))
- (markup #:slashed-digit figure))
- ((eq? #t (ly:event-property event 'augmented-slash))
- (markup #:backslashed-digit figure))
- (else (markup #:number (number->string figure 10)))))
- #f))
-
- (alt (ly:event-property event 'alteration))
- (alt-markup
- (if (number? alt)
- (markup
- #:general-align Y DOWN #:fontsize
- (if (not (= alt DOUBLE-SHARP))
- -2 2)
- (alteration->text-accidental-markup alt))
- #f))
-
- (plus-markup (if (eq? #t (ly:event-property event 'augmented))
- (markup #:number "+")
- #f))
-
- (alt-dir (ly:context-property context 'figuredBassAlterationDirection))
- (plus-dir (ly:context-property context 'figuredBassPlusDirection)))
+ (fig-markup (if (number? figure)
+
+ ;; this is not very elegant, but center-aligning
+ ;; all digits is problematic with other markups,
+ ;; and shows problems in the (lack of) overshoot
+ ;; of feta-alphabet glyphs.
+ ((if (<= 10 figure)
+ (lambda (y) (make-translate-scaled-markup
+ (cons -0.7 0) y))
+ identity)
+
+ (cond
+ ((eq? #t (ly:event-property event 'diminished))
+ (markup #:slashed-digit figure))
+ ((eq? #t (ly:event-property event 'augmented-slash))
+ (markup #:backslashed-digit figure))
+ (else (markup #:number (number->string figure 10)))))
+ #f))
+
+ (alt (ly:event-property event 'alteration))
+ (alt-markup
+ (if (number? alt)
+ (markup
+ #:general-align Y DOWN #:fontsize
+ (if (not (= alt DOUBLE-SHARP))
+ -2 2)
+ (alteration->text-accidental-markup alt))
+ #f))
+
+ (plus-markup (if (eq? #t (ly:event-property event 'augmented))
+ (markup #:number "+")
+ #f))
+
+ (alt-dir (ly:context-property context 'figuredBassAlterationDirection))
+ (plus-dir (ly:context-property context 'figuredBassPlusDirection)))
(if (and (not fig-markup) alt-markup)
- (begin
- (set! fig-markup (markup #:left-align #:pad-around 0.3 alt-markup))
- (set! alt-markup #f)))
+ (begin
+ (set! fig-markup (markup #:left-align #:pad-around 0.3 alt-markup))
+ (set! alt-markup #f)))
;; hmm, how to get figures centered between note, and
;; lone accidentals too?
;; (if (markup? fig-markup)
- ;; (set!
- ;; fig-markup (markup #:translate (cons 1.0 0)
- ;; #:center-align fig-markup)))
+ ;; (set!
+ ;; fig-markup (markup #:translate (cons 1.0 0)
+ ;; #:center-align fig-markup)))
(if alt-markup
- (set! fig-markup
- (markup #:put-adjacent
- X (if (number? alt-dir)
- alt-dir
- LEFT)
- fig-markup
- #:pad-x 0.2 alt-markup)))
+ (set! fig-markup
+ (markup #:put-adjacent
+ X (if (number? alt-dir)
+ alt-dir
+ LEFT)
+ fig-markup
+ #:pad-x 0.2 alt-markup)))
(if plus-markup
- (set! fig-markup
- (if fig-markup
- (markup #:put-adjacent
- X (if (number? plus-dir)
- plus-dir
- LEFT)
- fig-markup
- #:pad-x 0.2 plus-markup)
- plus-markup)))
+ (set! fig-markup
+ (if fig-markup
+ (markup #:put-adjacent
+ X (if (number? plus-dir)
+ plus-dir
+ LEFT)
+ fig-markup
+ #:pad-x 0.2 plus-markup)
+ plus-markup)))
(if (markup? fig-markup)
- (markup #:fontsize -2 fig-markup)
- empty-markup)))
+ (markup #:fontsize -2 fig-markup)
+ empty-markup)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
"Convert @var{placement-list} into a fretboard @var{grob}."
(let* ((tunings (ly:context-property context 'stringTunings))
- (my-string-count (length tunings))
- (details (ly:grob-property grob 'fret-diagram-details)))
+ (my-string-count (length tunings))
+ (details (ly:grob-property grob 'fret-diagram-details)))
;; Add string-count from string-tunings to fret-diagram-details.
(set! (ly:grob-property grob 'fret-diagram-details)
- (acons 'string-count my-string-count details))
+ (acons 'string-count my-string-count details))
;; Create the dot-placement list for the grob
(set! (ly:grob-property grob 'dot-placement-list) placement-list)))
"Convert @var{string-frets} to @code{fret-diagram-verbose}
dot placement entries."
(let* ((placements (list->vector
- (map (lambda (x) (list 'mute (1+ x)))
- (iota string-count)))))
+ (map (lambda (x) (list 'mute x))
+ (iota string-count 1)))))
(for-each (lambda (sf)
- (let* ((string (car sf))
- (fret (cadr sf))
- (finger (caddr sf)))
- (vector-set!
- placements (1- string)
- (if (= 0 fret)
+ (let* ((string (car sf))
+ (fret (cadr sf))
+ (finger (caddr sf)))
+ (vector-set!
+ placements
+ (1- string)
+ (if (= 0 fret)
(list 'open string)
- (if finger
- (list 'place-fret string fret finger)
- (list 'place-fret string fret))))))
- string-frets)
+ (if finger
+ (list 'place-fret string fret finger)
+ (list 'place-fret string fret))))))
+ string-frets)
(vector->list placements)))
(define (placement-list->string-frets placement-list)
placement-list)))
(define (entry-count art-list)
+ "Count the number of entries in a list of articulations."
(length (filter (lambda (x) (not (null? x)))
art-list)))
+ (define (string-number event)
+ "Get the string-number from @var{event}. Return @var{#f}
+if no string-number is present."
+ (let ((num (ly:event-property event 'string-number)))
+ (and (integer? num) (positive? num) num)))
+
(define (determine-frets-and-strings
- notes
- defined-strings
- defined-fingers
- minimum-fret
- maximum-stretch
- tuning)
+ notes
+ defined-strings
+ defined-fingers
+ minimum-fret
+ maximum-stretch
+ tuning)
+ "Determine the frets and strings used to play the notes in
+@var{notes}, given @var{defined-strings} and @var{defined-fingers}
+along with @var{minimum-fret}, @var{maximum-stretch}, and
+@var{tuning}. Returns a list of @code{(string fret finger) lists."
+
+
+ (define restrain-open-strings (ly:context-property context
+ 'restrainOpenStrings
+ #f))
+ (define specified-frets '())
+ (define free-strings (iota (length tuning) 1))
(define (calc-fret pitch string tuning)
- (- (ly:pitch-semitones pitch) (ly:pitch-semitones (list-ref tuning (1- string)))))
-
- (define (note-pitch a)
- (ly:event-property a 'pitch))
+ "Calculate the fret to play @var{pitch} on @var{string} with
+@var{tuning}."
+ (* 2 (- (ly:pitch-tones pitch) (ly:pitch-tones (list-ref tuning (1- string))))))
- (define (note-pitch>? a b)
- (ly:pitch<? (note-pitch b)
- (note-pitch a)))
+ (define (note-pitch note)
+ "Get the pitch (in semitones) from @var{note}."
+ (ly:event-property note 'pitch))
(define (note-finger ev)
+ "Get the fingering from @var{ev}. Return @var{#f}
+if no fingering is present."
(let* ((articulations (ly:event-property ev 'articulations))
- (finger-found #f))
-
- (map (lambda (art)
- (let* ((num (ly:event-property art 'digit)))
-
- (if (and (eq? 'fingering-event (ly:event-property art 'class))
- (number? num)
- (> num 0))
- (set! finger-found num))))
- articulations)
-
- finger-found))
+ (finger-found #f))
+ (for-each (lambda (art)
+ (let* ((num (ly:event-property art 'digit)))
- (define (string-number event)
- (let ((num (ly:event-property event 'string-number)))
- (if (number? num)
- num
- #f)))
+ (if (and (ly:in-event-class? art 'fingering-event)
+ (number? num)
+ (> num 0))
+ (set! finger-found num))))
+ articulations)
+ finger-found))
(define (delete-free-string string)
(if (number? string)
- (set! free-strings
- (delete string free-strings))))
-
- (define free-strings '())
- (define unassigned-notes '())
- (define specified-frets '())
+ (set! free-strings
+ (delete string free-strings))))
(define (close-enough fret)
- (if (null? specified-frets)
- #t
- (reduce
- (lambda (x y)
- (and x y))
- #t
- (map (lambda (specced-fret)
- (or (eq? 0 specced-fret)
- (>= maximum-stretch (abs (- fret specced-fret)))))
- specified-frets))))
+ "Decide if @var{fret} is acceptable, given the already used frets."
+ (every (lambda (specced-fret)
+ (or (zero? specced-fret)
+ (zero? fret)
+ (>= maximum-stretch (abs (- fret specced-fret)))))
+ specified-frets))
(define (string-qualifies string pitch)
+ "Can @var{pitch} be played on @var{string}, given already placed
+notes?"
(let* ((fret (calc-fret pitch string tuning)))
- (and (>= fret minimum-fret)
- (close-enough fret))))
+ (and (or (and (not restrain-open-strings)
+ (zero? fret))
+ (>= fret minimum-fret))
+ (integer? fret)
+ (close-enough fret))))
(define (open-string string pitch)
+ "Is @var{pitch} and open-string note on @var{string}, given
+the current tuning?"
(let* ((fret (calc-fret pitch string tuning)))
- (eq? fret 0)))
-
- (define string-fret-fingering-tuples '())
-
- (define (set-fret note string)
- (let ((this-fret (calc-fret (ly:event-property note 'pitch)
- string
- tuning)))
- (if (< this-fret 0)
- (ly:warning (_ "Negative fret for pitch ~a on string ~a")
- (note-pitch note) string))
- (set! string-fret-fingering-tuples
- (cons (list string
- this-fret
- (note-finger note))
- string-fret-fingering-tuples))
- (delete-free-string string)
- (set! specified-frets (cons this-fret specified-frets))))
-
- (define (pad-list target template)
- (while (< (length target) (length template))
- (set! target (if (null? target)
- '(())
- (append target '(()))))))
+ (zero? fret)))
+
+ (define (set-fret! pitch-entry string finger)
+ (let ((this-fret (calc-fret (car pitch-entry)
+ string
+ tuning)))
+ (if (< this-fret 0)
+ (ly:warning (_ "Negative fret for pitch ~a on string ~a")
+ (car pitch-entry) string)
+ (if (not (integer? this-fret))
+ (ly:warning (_ "Missing fret for pitch ~a on string ~a")
+ (car pitch-entry) string)))
+ (delete-free-string string)
+ (set! specified-frets (cons this-fret specified-frets))
+ (list-set! string-fret-fingers
+ (cdr pitch-entry)
+ (list string this-fret finger))))
+
+ (define (kill-note! string-fret-fingers note-index)
+ (list-set! string-fret-fingers note-index (list #f #t)))
+
+ (define string-fret-fingers
+ (map (lambda (string finger)
+ (if (null? finger)
+ (list string #f)
+ (list string #f finger)))
+ defined-strings defined-fingers))
;;; body of determine-frets-and-strings
- (set! free-strings (map 1+ (iota (length tuning))))
-
- ;; get defined-strings same length as notes
- (pad-list defined-strings notes)
-
- ;; get defined-fingers same length as notes
- (pad-list defined-fingers notes)
-
- ;; handle notes with strings assigned and fingering of 0
- (for-each
- (lambda (note string finger)
- (let ((digit (if (null? finger)
- #f
- finger)))
- (if (and (null? string)
- (not (eq? digit 0)))
- (set! unassigned-notes (cons note unassigned-notes))
- (if (eq? digit 0)
- (let ((fit-string
- (find (lambda (string)
- (open-string string (note-pitch note)))
- free-strings)))
- (if fit-string
- (begin
- (delete-free-string fit-string)
- (set-fret note fit-string))
- (begin
- (ly:warning (_ "No open string for pitch ~a")
- (note-pitch note))
- (set! unassigned-notes (cons note unassigned-notes)))))
- (let ((this-fret (calc-fret (note-pitch note) string tuning))
- (handle-negative
- (ly:context-property context
- 'handleNegativeFrets
- 'recalculate)))
- (cond ((or (>= this-fret 0)
- (eq? handle-negative 'include))
- (begin
- (delete-free-string string)
- (set-fret note string)))
- ((eq? handle-negative 'recalculate)
- (begin
- (ly:warning (_ "Requested string for pitch requires negative fret: string ~a pitch ~a") string (note-pitch note))
- (ly:warning (_ "Ignoring string request."))
- (set! unassigned-notes (cons note unassigned-notes))))))))))
- notes defined-strings defined-fingers)
-
- ;; handle notes without strings assigned
- (for-each
- (lambda (note)
- (let ((fit-string
- (find (lambda (string)
- (string-qualifies string (note-pitch note)))
- free-strings)))
- (if fit-string
- (set-fret note fit-string)
- (ly:warning (_ "No string for pitch ~a (given frets ~a)")
- (note-pitch note)
- specified-frets))))
- (sort unassigned-notes note-pitch>?))
-
- string-fret-fingering-tuples) ;; end of determine-frets-and-strings
+ (let* ((pitches (map note-pitch notes))
+ (pitch-alist (map cons pitches (iota (length pitches)))))
+
+ ;; handle notes with strings assigned and fingering of 0
+ (for-each
+ (lambda (pitch-entry string-fret-finger)
+ (let* ((string (list-ref string-fret-finger 0))
+ (finger (if (= (length string-fret-finger) 3)
+ (list-ref string-fret-finger 2)
+ '()))
+ (pitch (car pitch-entry))
+ (digit (if (null? finger)
+ #f
+ finger)))
+ (if (or (not (null? string))
+ (eqv? digit 0))
+ (if (eqv? digit 0)
+ ;; here we handle fingers of 0 -- open strings
+ (let ((fit-string
+ (find (lambda (string)
+ (open-string string pitch))
+ free-strings)))
+ (if fit-string
+ (set-fret! pitch-entry fit-string #f)
+ (ly:warning (_ "No open string for pitch ~a")
+ pitch)))
+ ;; here we handle assigned strings
+ (let ((this-fret
+ (calc-fret pitch string tuning))
+ (handle-negative
+ (ly:context-property context
+ 'handleNegativeFrets
+ 'recalculate)))
+ (cond ((or (and (>= this-fret 0) (integer? this-fret))
+ (eq? handle-negative 'include))
+ (set-fret! pitch-entry string finger))
+ ((eq? handle-negative 'recalculate)
+ (begin
+ (ly:warning
+ (_ "Requested string for pitch requires negative fret: string ~a pitch ~a")
+ string
+ pitch)
+ (ly:warning (_ "Ignoring string request and recalculating."))
+ (list-set! string-fret-fingers
+ (cdr pitch-entry)
+ (if (null? finger)
+ (list '() #f)
+ (list '() #f finger)))))
+ ((eq? handle-negative 'ignore)
+ (begin
+ (ly:warning
+ (_ "Requested string for pitch requires negative fret: string ~a pitch ~a")
+ string
+ pitch)
+ (ly:warning (_ "Ignoring note in tablature."))
+ (kill-note! string-fret-fingers
+ (cdr pitch-entry))))))))))
+ pitch-alist string-fret-fingers)
+ ;; handle notes without strings assigned -- sorted by pitch, so
+ ;; we need to use the alist to have the note number available
+ (for-each
+ (lambda (pitch-entry)
+ (let* ((string-fret-finger (list-ref string-fret-fingers
+ (cdr pitch-entry)))
+ (string (list-ref string-fret-finger 0))
+ (finger (if (= (length string-fret-finger) 3)
+ (list-ref string-fret-finger 2)
+ '()))
+ (pitch (car pitch-entry))
+ (fit-string
+ (find (lambda (string)
+ (string-qualifies string pitch))
+ free-strings)))
+ (if (not (list-ref string-fret-finger 1))
+ (if fit-string
+ (set-fret! pitch-entry fit-string finger)
+ (begin
+ (ly:event-warning
+ (list-ref notes (cdr pitch-entry))
+ (_ "No string for pitch ~a (given frets ~a)")
+ pitch
+ specified-frets)
+ (kill-note! string-fret-fingers
+ (cdr pitch-entry)))))))
+ (sort pitch-alist (lambda (pitch-entry-a pitch-entry-b)
+ (ly:pitch<? (car pitch-entry-b)
+ (car pitch-entry-a)))))
+ string-fret-fingers)) ;; end of determine-frets-and-strings
(define (get-predefined-fretboard predefined-fret-table tuning pitches)
"Search through @var{predefined-fret-table} looking for a predefined
(define (get-fretboard key)
(let ((hash-handle
- (hash-get-handle predefined-fret-table key)))
- (if hash-handle
- (cdr hash-handle) ; return table entry
- '())))
-
-
+ (hash-get-handle predefined-fret-table key)))
+ (if hash-handle
+ (cdr hash-handle) ; return table entry
+ '())))
;; body of get-predefined-fretboard
(let ((test-fretboard (get-fretboard (cons tuning pitches))))
(if (not (null? test-fretboard))
- test-fretboard
- (let ((test-fretboard
- (get-fretboard
- (cons tuning (map (lambda (x) (shift-octave x 1)) pitches)))))
- (if (not (null? test-fretboard))
- test-fretboard
- (get-fretboard
- (cons tuning (map (lambda (x) (shift-octave x -1))
- pitches))))))))
+ test-fretboard
+ (let ((test-fretboard
+ (get-fretboard
+ (cons tuning (map (lambda (x) (shift-octave x 1)) pitches)))))
+ (if (not (null? test-fretboard))
+ test-fretboard
+ (get-fretboard
+ (cons tuning (map (lambda (x) (shift-octave x -1))
+ pitches))))))))
;; body of determine-frets
(let* ((predefined-fret-table
- (ly:context-property context 'predefinedDiagramTable))
+ (ly:context-property context 'predefinedDiagramTable))
(tunings (ly:context-property context 'stringTunings))
(string-count (length tunings))
(grob (if (null? rest) '() (car rest)))
- (pitches (map (lambda (x) (ly:event-property x 'pitch)) notes))
+ (pitches (map (lambda (x) (ly:event-property x 'pitch)) notes))
(defined-strings (map (lambda (x)
(if (null? x)
x
- (ly:event-property x 'string-number)))
+ (or (string-number x) '())))
(car specified-info)))
(defined-fingers (map (lambda (x)
(if (null? x)
tunings
pitches)
'())))
- (if (null? predefined-fretboard)
- (let ((string-frets
- (determine-frets-and-strings
- notes
- strings-used
- defined-fingers
- (ly:context-property context 'minimumFret 0)
- (ly:context-property context 'maximumFretStretch 4)
- tunings)))
- (if (null? grob)
- string-frets
- (create-fretboard
- context grob (string-frets->placement-list
- string-frets string-count))))
- (if (null? grob)
- (placement-list->string-frets predefined-fretboard)
- (create-fretboard context grob predefined-fretboard)))))
+ (if (null? predefined-fretboard)
+ (let ((string-frets
+ (determine-frets-and-strings
+ notes
+ strings-used
+ defined-fingers
+ (ly:context-property context 'minimumFret 0)
+ (ly:context-property context 'maximumFretStretch 4)
+ tunings)))
+ (if (null? grob)
+ string-frets
+ (create-fretboard
+ context grob (string-frets->placement-list
+ (filter (lambda (entry)
+ (car entry))
+ string-frets)
+ string-count))))
+ (if (null? grob)
+ (placement-list->string-frets predefined-fretboard)
+ (create-fretboard context grob predefined-fretboard)))))
;; The fret letter is taken from 'fretLabels if present
(define-public (fret-letter-tablature-format
context string-number fret-number)
- (let ((labels (ly:context-property context 'fretLabels)))
- (make-vcenter-markup
- (cond
- ((= 0 (length labels))
- (string (integer->char (+ fret-number (char->integer #\a)))))
- ((and (<= 0 fret-number) (< fret-number (length labels)))
- (list-ref labels fret-number))
- (else
- (ly:warning (_ "No label for fret ~a (on string ~a);
+ (let ((labels (ly:context-property context 'fretLabels)))
+ (make-vcenter-markup
+ (cond
+ ((= 0 (length labels))
+ (string (integer->char (+ fret-number (char->integer #\a)))))
+ ((and (<= 0 fret-number) (< fret-number (length labels)))
+ (list-ref labels fret-number))
+ (else
+ (ly:warning (_ "No label for fret ~a (on string ~a);
only ~a fret labels provided")
- fret-number string-number (length labels))
- ".")))))
+ fret-number string-number (length labels))
+ ".")))))
;; Display the fret number as a number
(define-public (fret-number-tablature-format
context string-number fret-number)
(make-vcenter-markup
- (format "~a" fret-number)))
+ (format #f "~a" fret-number)))
-;; The 5-string banjo has got a extra string, the fifth (duh), which
+;; The 5-string banjo has got an extra string, the fifth (duh), which
;; starts at the fifth fret on the neck. Frets on the fifth string
;; are referred to relative to the other frets:
;; the "first fret" on the fifth string is really the sixth fret
;; We solve this by defining a new fret-number-tablature function:
(define-public (fret-number-tablature-format-banjo
context string-number fret-number)
- (make-vcenter-markup
- (number->string (cond
- ((and (> fret-number 0) (= string-number 5))
- (+ fret-number 5))
- (else fret-number)))))
+ (make-vcenter-markup
+ (number->string (cond
+ ((and (> fret-number 0) (= string-number 5))
+ (+ fret-number 5))
+ (else fret-number)))))
;; Tab note head staff position functions
;;
;; lines
(define-public (tablature-position-on-lines context string-number)
- (let* ((string-tunings (ly:context-property context 'stringTunings))
- (string-count (length string-tunings))
- (string-one-topmost (ly:context-property context 'stringOneTopmost))
- (staff-line (- (* 2 string-number) string-count 1)))
- (if string-one-topmost
- (- staff-line)
- staff-line)))
+ (let* ((string-tunings (ly:context-property context 'stringTunings))
+ (string-count (length string-tunings))
+ (string-one-topmost (ly:context-property context 'stringOneTopmost))
+ (staff-line (- (* 2 string-number) string-count 1)))
+ (if string-one-topmost
+ (- staff-line)
+ staff-line)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; bar numbers
-(define-public ((every-nth-bar-number-visible n) barnum)
+(define-public ((every-nth-bar-number-visible n) barnum mp)
(= 0 (modulo barnum n)))
-(define-public ((modulo-bar-number-visible n m) barnum)
+(define-public ((modulo-bar-number-visible n m) barnum mp)
(and (> barnum 1) (= m (modulo barnum n))))
(define-public ((set-bar-number-visibility n) tr)
(let ((bn (ly:context-property tr 'currentBarNumber)))
(ly:context-set-property! tr 'barNumberVisibility
- (modulo-bar-number-visible n (modulo bn n)))))
-
-(define-public (first-bar-number-invisible barnum) (> barnum 1))
-
-(define-public (all-bar-numbers-visible barnum) #t)
+ (modulo-bar-number-visible n (modulo bn n)))))
+
+(define-public (first-bar-number-invisible barnum mp)
+ (> barnum 1))
+
+(define-public (first-bar-number-invisible-save-broken-bars barnum mp)
+ (or (> barnum 1)
+ (> (ly:moment-main-numerator mp) 0)))
+
+(define-public (first-bar-number-invisible-and-no-parenthesized-bar-numbers barnum mp)
+ (and (> barnum 1)
+ (= (ly:moment-main-numerator mp) 0)))
+
+(define-public (robust-bar-number-function barnum measure-pos alt-number context)
+ (define (get-number-and-power an pow)
+ (if (<= an alt-number)
+ (get-number-and-power (+ an (expt 26 (1+ pow))) (1+ pow))
+ (cons (+ alt-number (- (expt 26 pow) an)) (1- pow))))
+ (define (make-letter so-far an pow)
+ (if (< pow 0)
+ so-far
+ (let ((pos (modulo (quotient an (expt 26 pow)) 26)))
+ (make-letter (string-append so-far
+ (substring "abcdefghijklmnopqrstuvwxyz"
+ pos
+ (1+ pos)))
+ an
+ (1- pow)))))
+ (let* ((number-and-power (get-number-and-power 0 0))
+ (begin-measure (= 0 (ly:moment-main-numerator measure-pos)))
+ (maybe-open-parenthesis (if begin-measure "" "("))
+ (maybe-close-parenthesis (if begin-measure "" ")")))
+ (markup (string-append maybe-open-parenthesis
+ (number->string barnum)
+ (make-letter ""
+ (car number-and-power)
+ (cdr number-and-power))
+ maybe-close-parenthesis))))
+
+(define-public (all-bar-numbers-visible barnum mp) #t)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(= 0 (modulo count n)))
(define-public (all-repeat-counts-visible count context) #t)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; make-engraver helper macro
+
+(defmacro-public make-engraver forms
+ "Helper macro for creating Scheme engravers.
+
+The usual form for an engraver is an association list (or alist)
+mapping symbols to either anonymous functions or to another such
+alist.
+
+@code{make-engraver} accepts forms where the first element is either
+an argument list starting with the respective symbol, followed by the
+function body (comparable to the way @code{define} is used for
+defining functions), or a single symbol followed by subordinate forms
+in the same manner. You can also just make an alist pair
+literally (the @samp{car} is quoted automatically) as long as the
+unevaluated @samp{cdr} is not a pair. This is useful if you already
+have defined your engraver functions separately.
+
+Symbols mapping to a function would be @code{initialize},
+@code{start-translation-timestep}, @code{process-music},
+@code{process-acknowledged}, @code{stop-translation-timestep}, and
+@code{finalize}. Symbols mapping to another alist specified in the
+same manner are @code{listeners} with the subordinate symbols being
+event classes, and @code{acknowledgers} and @code{end-acknowledgers}
+with the subordinate symbols being interfaces."
+ (let loop ((forms forms))
+ (if (cheap-list? forms)
+ `(list
+ ,@(map (lambda (form)
+ (if (pair? (car form))
+ `(cons ',(caar form) (lambda ,(cdar form) ,@(cdr form)))
+ `(cons ',(car form) ,(loop (cdr form)))))
+ forms))
+ forms)))
projects / lilypond.git / blobdiff