Re: Center text over measure

[Urs Liska]

Am 11.05.2018 um 18:04 schrieb Urs Liska:
> Am 11.05.2018 um 17:45 schrieb Malte Meyn:
> > Am 11.05.2018 um 17:39 schrieb Urs Liska:
> > > Hi all,
> > >
> > > somehow I have the feeling this is a stupid question, but I'm unable 
> > > to find the solution.
> > >
> > > Is there a convenient and semantically clean way to center a markup 
> > > above/below a measure?
> > >
> > > I need a solution that doesn't rely on separate contexts (e.g. a 
> > > Dynamics context above the staff). What *would* be acceptable is a 
> > > Scheme function that calculates the actual width of the measure and 
> > > does the centering from that. But since that would probably only be 
> > > possible in a after-line-breaking callback it would seem quite dirty 
> > > to move around a markup at that point.
> > >
> > > Any suggestions?
> > > Thanks
> > > Urs
> >
> > MultiMeasureRestText above an invisible MMR? 
>
> OMG. That's what I meant.
> Of course I thought about this, but I was convinced that making the 
> MMR invisible wouldn't work because it would still affect the spacing 
> and collision handling.
> But this seems to do exactly what I need:
>
> \version "2.19.80"
>
> \score {
>   \new Staff
>   \relative {
>     <<
>       {
>         \hide MultiMeasureRest
>         R1
>         ^\markup "Is this centered?"
>         _\markup "and this?"
>       }
>       \new Voice {
>         \oneVoice
>         c'4 c c c
>         \break
>         c1
>       }
>     >>
>   }
> }
>
>
> Thanks
> Urs

Well, looking more closely shows me that I'd prefer a solution that 
doesn't even require a a separate *voice*.
The problem is that I'll also have to *export* the stuff in a clean way 
to MusicXML, and I don't think a hidden additional layer should be the 
way to go.
Ideally I'd have something like a \measureMarkup that would apply (and 
center) the markup to the measure (instead of to a note or rest). But I 
would also be able to go with a solution where I can attach the markup 
to the first element in a measure and have it positioned relative to the 
measure.

Urs

> > Or have a look at the code that positions those grobs and adapt ;) 
> > Another grob that is centered: PercentRepeat.
> >
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