Re: flip clef at end of line only

[Marc Hohl]

Am 15.04.2017 um 18:02 schrieb Malte Meyn:
> Am 15.04.2017 um 17:32 schrieb Marc Hohl:
> > Hi list,
> >
> > I am working on a little piece that's played as written;
> > after that, the musician has to turn the page upside down and play the
> > resulting notes.
> >
> > I managed to get the clef displayed at the beginning and the end of each
> > line, and I can flip the clef ;-)
> >
> > Unfortunately, overriding the Clef.stencil at the end of the line
> > changes the apperance for the clef in the next line, too.
>
> You need before-line-breaking here so you can use the function
> ly:item-break-dir:
>
>
>     \override Clef.before-line-breaking =
>     #(lambda (grob)
>        (if (equal? (ly:item-break-dir grob) LEFT)
>            (ly:grob-set-property! grob 'stencil
>              (lambda (grobb)
>                (grob-interpret-markup grobb
>                  #{ \markup \translate #'(0 . 2) \flip \musicglyph
> #"clefs.G" #})))))

Thanks a lot! Just for clarification: after-line-breaking seems to work 
here, too – is there a special reason to use before-line-breaking?

> I added the translate in the markup to bring the clef to the correct
> vertical position.

Yep – I removed it for MWE reasons :)

Cheers,

Marc
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