Re: [frogs] bend implementation

[Marc Hohl <marc@xxxxxxxxxx>]

Carl Sorensen schrieb:
> On 1/20/10 3:29 AM, "Marc Hohl" <marc@xxxxxxxxxx> wrote:
>
>   
> > Carl Sorensen schrieb:
> >     
> > > [...]
> > >
> > > If you can ask some more specific questions, maybe we can get answers.
> > >  
> > >       
> > Oh, here's a (probably) silly one:
> >
> > By looking at glissando_engraver.cc or note_head_line_engraver.cc,
> > I don't see where the line is drawn. Where do I find these routines
> > that create the appropriate stencil?
> >     
>
> Not silly at all.  This is a perfect engraver to get at the core confusing
> LilyPond functionality.  The most confusing part is the seemingly immaculate
> conversion from event to stencil (which happens by way of the grob).
>
> Here is the line that creates the grob:
>  line_ = make_spanner ("VoiceFollower", head_->self_scm ());
>
> This creates a VoiceFollower grob.
>
> >From the internals reference, we see that the VoiceFollower grob has the
> default stencil ly:line-spanner::print.  So the code that actually creates
> the line is in ly:line-spanner::print.
>   
Ah, ok. I read tuplet-*.cc  where there are tons of stencil trickery,
and in glissando-engraver.cc, there's none.
As I have to draw sloping lines for the pointed slurs,  I thought that
the glissando offers some insight.
> You might have a BendIndicator grob, which will have its own stencil
> routine.
>   
Ok. I think it would not be a waste of time to sketch some kind of roadmap,
so your (and others') suggestions don't get lost.

Thanks,

Marc
> HTH,
>
> Carl
>
>
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