Re: [Denemo-devel] Articulations

[Jeremiah Benham]

On 12/09/2011 04:36 AM, Richard Shann wrote:
> On Thu, 2011-12-08 at 22:17 -0600, Jeremiah Benham wrote:
> > On 12/08/2011 12:57 PM, Richard Shann wrote:
> > > Jeremiah,
> > > My irc #denemo connection keeps dropping. About articulations, what
> > we
> > > really need is to be able to create actions for toggling each
> > > articulation using the feta font symbol in the menu label and
> > display,
> > > and of course creating the appropriate LilyPond syntax.
> > > With things like staccatissimo the dot in the display needs to be
> > > sensitive to the stem direction - which may require some more
> > > infrastructure support (in drawnotes.c).
> > I just pushed an example. Let me know if I am in the correct direction
> > here.
> I see you adding Marcato by cloning code for other articulations, that
> is creating another built-in. This is quite the opposite of what I
> meant!

I am glad I did not continue to go this direction then. I sent the 
example because I had a feeling I was confused about something. I 
reverted the change in git.

> The idea is to remove all those built-in articulations and replace them
> with scripts that add a directive to the note, displaying the symbol and
> outputting the lilypond. Something like
>
> ;;;ToggleMarcato
> (let ((tag "Marcato"))
>         (if (d-DirectiveTag-note? tag)
>                 (d-DirectiveDelete tag)
>                 (begin
>                         (d-DirectivePut-note-display tag FETA_MARCATO)
>                         (d-DirectivePut-note-override tag something to make it 
> display the
> symbol relative to the stem direction)
>                         (d-DirectivePut-note-postfix tag "\\marcato")
>
> the main task is to create the strings like FETA_MARCATO which hold the
> utf8 values of the lilypond glyphs.

Where should FETA_MARCATO be defined? How do I get the utf8 value? I 
looked at the fonts in fontforge trying to find this utf8 value but 
failed to find it. I also noticed that the articulation fonts are not 
all in a row. Is that necessary? Should I reorder the fonts or just set 
FETA_MARCATO to point to where they are currently? We will want an image 
to show in the draw area correct? I think we used to select something in 
the print view screen and save it as a bitmap to load back into to 
denemo. Its been a while since I have done that. Its a good idea that I 
relearn :). It will be a good test to see if it is working with the gtk3 
build.

> But once done, it should be possible to add further articulations just
> by naming the glyph and the lilypond syntax etc. No re-compiling Denemo
> with new C code written for the particular articulation.
> Note:
>         Where I put d-DirectivePut-note-xxx it would be
> d-DirectivePut-chord-xxx for most articulations, which apply to all the
> notes not individual notes in a chord.
>         I am not sure whether positioning relative to stem up/down has been
> implemented yet. (would be DENEMO_OVERRIDE_SOMETHING_OR_OTHER...), or it
> may be the default.

I may have to do the stem/up down thing last because I am not yet sure 
how to do that part yet.

Jeremiah


> Richard