David,
On Fri, Oct 2, 2015 at 11:26 AM, David Kastrup <d...@gnu.org> wrote:
> David Nalesnik <david.nales...@gmail.com> writes:
>
> > Hi all,
> >
> > I'm experimenting with a way to support multiple text spanners in a
> single
> > voice, using the 'spanner-id property which already enables multiple
> slurs
> > and phrasing slurs.
> >
> > The attached code works--until the spanners cross a line break. Then the
> > order of the spanners is reversed. I've experimented with different
> start
> > and end points of the spanners, reversing lists within the engraver--no
> > change.
> >
> > The second example shows that tweaks can mess up this reversed ordering
> > even further.
> >
> > Does anyone know what is happening here? I really have no idea :(
>
> Sounds like room-saving stacking of elements with equal
> outside-staff-priority (?). Perhaps distribute ascending priorities?
Exactly! Thanks so much.
The following is one of the examples from the file, with
outside-staff-priority tweaks. The order is preserved.
\relative c' {
\override TextSpanner.outside-staff-padding = 2
\override TextSpanner.thickness = 4
\override TextSpanner.style = ##f
a4
-\tweak color #red
\startTextSpan
b c
-\tweak color #darkred
-\offset outside-staff-priority 1
\startTextSpanOne
d
a4
-\tweak color #magenta
-\offset outside-staff-priority 2
\startTextSpanTwo
b c
-\tweak style #'zigzag
-\offset outside-staff-priority 3
\startTextSpanThree
d
\break
a4 b c d\stopTextSpanThree
a4 b\stopTextSpanTwo
c d\stopTextSpanOne
a4 b c d\stopTextSpan
}
%%%%%
Naturally, it would be nice to do this without needing the extra tweaks.
outside-staff-priority could be altered behind-the-scenes, but that seems
somehow...dishonest. Though, of course, two spanner with priorities 350
and 351 would be unlikely to interfere with placement of other objects.
DN
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