;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
-;;;; (c) 1998--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+;;;; (c) 1998--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
;;;; Jan Nieuwenhuizen <janneke@gnu.org>
;;;;
;;;; LilyPond is free software: you can redistribute it and/or modify
;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; clefs
+
+(define-public (clef-octavation-markup oct style)
+ "The octavation sign formatting function. @var{oct} is supposed to be
+a string holding the octavation number, @var{style} determines the
+way the octavation 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
(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
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)
"Calculate the fret to play @var{pitch} on @var{string} with
@var{tuning}."
- (- (ly:pitch-semitones pitch) (ly:pitch-semitones (list-ref tuning (1- string)))))
+ (* 2 (- (ly:pitch-tones pitch) (ly:pitch-tones (list-ref tuning (1- string))))))
(define (note-pitch note)
"Get the pitch (in semitones) from @var{note}."
(map (lambda (art)
(let* ((num (ly:event-property art 'digit)))
- (if (and (eq? 'fingering-event (ly:event-property art 'class))
+ (if (and (ly:in-event-class? art 'fingering-event)
(number? num)
(> num 0))
(set! finger-found num))))
articulations)
finger-found))
- (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)))
- (if (number? num)
- num
- #f)))
-
(define (delete-free-string string)
(if (number? string)
(set! free-strings
#t
(map (lambda (specced-fret)
(or (eq? 0 specced-fret)
+ (and (not restrain-open-strings)
+ (eq? 0 fret))
(>= maximum-stretch (abs (- fret specced-fret)))))
specified-frets))))
"Can @var{pitch} be played on @var{string}, given already placed
notes?"
(let* ((fret (calc-fret pitch string tuning)))
- (and (>= fret minimum-fret)
+ (and (or (and (not restrain-open-strings)
+ (eq? fret 0))
+ (>= fret minimum-fret))
+ (integer? fret)
(close-enough fret))))
(define (open-string string pitch)
tuning)))
(if (< this-fret 0)
(ly:warning (_ "Negative fret for pitch ~a on string ~a")
- (note-pitch note) string))
+ (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)
defined-strings defined-fingers))
;;; body of determine-frets-and-strings
- (let* ((pitch-alist (apply (lambda (mylist)
- (let ((index -1))
- (map (lambda (note)
- (begin
- (set! index (1+ index))
- (cons (note-pitch note)
- index)))
- mylist)))
- notes '()))
- (pitches (map note-pitch notes)))
+ (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
(ly:context-property context
'handleNegativeFrets
'recalculate)))
- (cond ((or (>= this-fret 0)
+ (cond ((or (and (>= this-fret 0) (integer? this-fret))
(eq? handle-negative 'include))
(set-fret! pitch-entry string finger))
((eq? handle-negative 'recalculate)
(_ "Requested string for pitch requires negative fret: string ~a pitch ~a")
string
pitch)
- (ly:warning (_ "Ignoring string request."))
+ (ly:warning (_ "Ignoring string request and recalculating."))
(list-set! string-fret-fingers
(cdr pitch-entry)
(if (null? finger)
(list '() #f)
- (list '() #f finger)))))))))))
+ (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
(if (not (list-ref string-fret-finger 1))
(if fit-string
(set-fret! pitch-entry fit-string finger)
- (ly:warning (_ "No string for pitch ~a (given frets ~a)")
- pitch
- specified-frets)))))
+ (begin
+ (ly:warning (_ "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)))))
(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)
string-frets
(create-fretboard
context grob (string-frets->placement-list
- string-frets string-count))))
+ (filter (lambda (entry)
+ (car entry))
+ string-frets)
+ string-count))))
(if (null? grob)
(placement-list->string-frets predefined-fretboard)
(create-fretboard context grob predefined-fretboard)))))
(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
;; starts at the fifth fret on the neck. Frets on the fifth string
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; 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)
(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)
+(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