Re: Issue 1773 in lilypond: Add Footnote_engraver to Staff context

[address@hidden]

On Jul 22, 2011, at 9:57 AM, address@hidden wrote:

> Status: Accepted
> Owner: ----
> Labels: Type-Enhancement Priority-Low
> 
> New issue 1773 by address@hidden: Add Footnote_engraver to Staff context
> http://code.google.com/p/lilypond/issues/detail?id=1773
> 
> This came out of the third draft of a patch I did in
> 
> http://codereview.appspot.com/4751045/
> 
> For some grobs, the \footnoteGrob command needs the Staff context to be 
> explicitly set. This is a bit awkward frankly and I think, more often than 
> not, when using footnotes staff context are going to be needed for this 
> engraver..
> 
> Currently this is only (AFAICT) in the Voice context, I asked generally on 
> the thread above if it could be added into the Staff context *as well* and 
> Neil Puttock said:
> 
> --snip--
> 
> There are several engravers which exist in multiple contexts (e.g.,
> Parenthesis_engraver).  I haven't checked, but it seems to me that
> adding the Footnote_engraver to the Staff context should be harmless
> for Voice-level footnotes.
> 
> Cheers,
> Neil
> 

The Footnote_engraver has an acknowledge_grob.  Does this take more execution 
time than, say, acknowledge_rest?  If so, how much?  I think that adding this 
engraver to the Staff context as a default should only be done if doesn't slow 
LilyPond down appreciably: otherwise, users can just add it themselves with a 
\with { } block.

Cheers,
MS