Hi,
I'm in need of an idea how to approach this: I need to print a slur over
a single note.
More concretely there already is a markup with a certain width above the
note (see attached image), and I need to print a slur over that markup
(see second attached image).
It should be possible (I think) to hook into the stencil callback, take
the markup stencil and produce a new slur stencil from scratch. But
until now I have only taken an existing slur stencil and worked with
that, so I'm at a loss as to how I can add a new slur stencil to the
existing one.
I've come to the point where I can access the markup as a stencil in the
"stencil" override. From here I want to add an additional slur stencil,
aligned to that markup stencil and add it to the whole resul.
Any pointers would be welcome
Urs
\version "2.21.0"
#(define (tremulo-type? obj)
(and (symbol? obj)
(memq obj '(slow accel fast))))
tremulo =
#(define-event-function (type)(tremulo-type?)
(let*
((markups
`((accel .
,#{
\markup \concat {
\fontsize #1
\musicglyph "scripts.prall"
\fontsize #-1
\musicglyph "scripts.prallprall"
}
#})))
;; store the actually used markup in a closure
(use-markup (assq-ref markups type)))
#{
\tweak stencil
#(lambda (grob)
(let*
((tremulo-stencil (grob-interpret-markup grob use-markup))
)
; TODO:
; Create slur stencil and add/align it above the tremulo
tremulo-stencil
))
^\markup ""
#}
))
{
c''1 \tremulo accel
}
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