Re: [tablatures] \hideNotes in TabStaff

[Marc Hohl <marc@xxxxxxxxxx>]

Trevor Daniels schrieb:
> Moved to tab list from -user ..
>
> Marc Hohl wrote Thursday, January 28, 2010 8:27 AM
>
>
> > Trevor Daniels schrieb:
> > > \hideNotes and \unHideNotes are designed to work only with
> > > ordinary staves and voices.  In TabStaff they will hide
> > > stems, beams, dots, etc (if these are being displayed)
> > > but not the fret labels from TabNoteHead.  Maybe they should,
> > > or are there situations where you would want to hide notes
> > > in the normal staff but not in TabStaff or vice versa?
> >
> > I have not used \hideNotes very often, but as we want to use the input
> > both for normal staves and tablature staves without tweaking too much,
> > I think it would make sense to include the functionality into 
> > \hideNotes,
> > but it seems that this would not be straightforward, as, for example,
> > \revert Stem #'transparent would make the tablature stems visible, too.
>
> It would, which you would not want to do normally but
> which would be correct if you were displaying stems in
> tab before calling \hideNotes.  This is not so much a
> problem with \hideNotes as with the way \tabFullNotation
> is implemented.  You would have exactly the same problem
> with \hideTabNotes (or whatever it might be called).
You are right, this is a serious limitation of the current implementation.
> This is a limitation of using predefined commands - when
> several changes interact there is no means of testing
> anything.  The fix would be to use context properties
> rather than \hideNotes and \tabFullNotation.  These
> could then be tested in the engravers, and the engravers
> could work out what values the properties should have.
So ideally, we would have a context property switching from
\tabFullNotation to \tabNumbersOnly behavior?
Could you specify in more detail how this could be done, so
1) this could be added to the tracker (I think #810 is the proper place 
for it)
2) someone could start implementing it (perhaps this way I can learn 
some more about
how engravers work)

Thanks,

Marc


> Trevor