Re: Quoting \set and \override (for cue notes etc.)

[Reinhold Kainhofer]

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Am Donnerstag, 20. August 2009 00:19:41 schrieb Neil Puttock:
> 2009/8/14 Reinhold Kainhofer <address@hidden>:
> > I tried adding various classes to the quotedEventTypes list, e.g.
> > override- property-event general-music override-property OverrideProperty
> > property-set PropertySet, but nothing seems to have any effect. Any idea
> > how to make lilypond also quote overrides and \set commands?
>
> As I hinted in the discussion you mentioned, it's partly due to how
> recording-group-emulate is coded: 

Ah, I would have never guessed that recording-group-emulate would be 
involved...

Shouldn't add-quotable and recording-group-emulate be moved out of the 
partcombiner code and somewhere more general?

> If you change this to listen to 'StreamEvent, the other classes will
> be acknowledged, which will allow simple context settings to work
> (like fontSize).
>
> Unfortunately, there's still a problem with \override and \revert;
> they're recorded, but it seems the events associated with them either
> aren't broadcast, or they're ignored by the Engraver_group.

Yes, there are some issues:
- -) if you add an explicit context, the overrides are not recorded at all. 
E.g. 
the following is not recorded (they don't appear in Quote_iterator::process at 
all):
      \once \override Staff.Stem #'thickness = #8.0
while the same without Staff. is:
      \once \override Stem #'thickness = #8.0

- -) \once\override Grob #'prop = #val works, but the override without \once 
does not work. Unfortunately, acciaccatura etc. use \override without \once. 
These overrides are recorded (i.e. they are checked for in 
Quote_iterator::accept_music_type), but they don't seem to have an effect.

Cheers,
Reinhold

- -- 
- ------------------------------------------------------------------
Reinhold Kainhofer, address@hidden, http://reinhold.kainhofer.com/
 * Financial & Actuarial Math., Vienna Univ. of Technology, Austria
 * http://www.fam.tuwien.ac.at/, DVR: 0005886
 * LilyPond, Music typesetting, http://www.lilypond.org
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