On Thu, Feb 28, 2019 at 4:10 PM David Kastrup <[email protected]> wrote:
> Trevor Bača <[email protected]> writes:
>
> > On Fri, Feb 22, 2019 at 2:58 AM Andrew Bernard <[email protected]
> >
> > wrote:
> >
> >> Solved. It's right-broken-padding set to false that does the trick.
> >>
> >> \override TextSpanner.bound-details.right-broken.padding = ##f
> >> \override TextSpanner.bound-details.right.padding = #11
> >>
> >
> >
> > As a note for posterity (whenever the time comes to finally equip text
> > spanners with their remaining missing features), it would be fantastic to
> > allow text spanners to start (and stop) nonmusical items, like bar lines.
> >
> > Then magic numbers (like 11, in the example here) can be replaced by
> > something semantic that says "stop text span on bar line", which seems to
> > be what Andrew is actually engraving in this excerpt.
>
> So? There is the to-barline property.
>
Hi David,
This is extremely useful. Thank you so much for sending over the example; I
had no idea to-barline was implemented on TextSpanner.
A cleaned up the example for future archive-searchers:
%%% TEXT SPANNER TO BARLINE (MID-SYSTEM) %%%
\version "2.19.82"
left-bracket-path = #'(
(moveto 0 -1)
(lineto 0 0)
(lineto 2 0)
)
right-bracket-path = #'(
(lineto 2 0)
(lineto 2 -1)
)
repeat-spanner-start-markup = \markup {
\path #0.25 #left-bracket-path
\general-align #Y #CENTER
\sans \upright " x3"
}
repeat-spanner-stop-markup = \markup {
\general-align #X #RIGHT
\line {
\general-align #Y #CENTER
\sans \upright " x3"
\path #0.25 #right-bracket-path
}
}
\new Staff
{
c'1
- \tweak bound-details.left.text \repeat-spanner-start-markup
- \tweak bound-details.left-broken.text ##f
- \tweak bound-details.right.padding 0
- \tweak bound-details.right.text \repeat-spanner-stop-markup
- \tweak bound-details.right-broken.text ##f
- \tweak dash-period 1
- \tweak staff-padding 4
- \tweak to-barline ##t
\startTextSpan
c'1
\break
c'1
c'1
\stopTextSpan
}
\paper {
indent = 0
system-system-spacing = #'((minimum-distance . 20))
}
%%% END %%%
[image: text-spanner-to-barline.png]
IMPORTANT NOTE: the likely-to-be-overlooked key here is "\general-align #X
#RIGHT" included in the definition of the markup used *at the right end* of
the spanner. (In this example, repeat-spanner-stop-markup.)
Equally astonishingly, the example can be made to work at line breaks:
%%% TEXT SPANNER TO BARLINE (END-OF-SYSTEM) %%%
\version "2.19.82"
left-bracket-path = #'(
(moveto 0 -1)
(lineto 0 0)
(lineto 2 0)
)
right-bracket-path = #'(
(lineto 2 0)
(lineto 2 -1)
)
repeat-spanner-start-markup = \markup {
\path #0.25 #left-bracket-path
\general-align #Y #CENTER
\sans \upright " x3"
}
repeat-spanner-stop-markup = \markup {
\general-align #X #RIGHT
\line {
\general-align #Y #CENTER
\sans \upright " x3"
\path #0.25 #right-bracket-path
}
}
\new Staff
{
c'1
- \tweak bound-details.left.text \repeat-spanner-start-markup
- \tweak bound-details.left-broken.text ##f
- \tweak bound-details.right.padding 0
- \tweak bound-details.right.text \repeat-spanner-stop-markup
%%%- \tweak bound-details.right-broken.text ##f
- \tweak dash-period 1
- \tweak staff-padding 4
- \tweak to-barline ##t
\startTextSpan
c'1
\break
c'1
\stopTextSpan
c'1
}
\paper {
indent = 0
system-system-spacing = #'((minimum-distance . 20))
}
%%% END %%%
[image: text-spanner-to-barline-at-line-break.png]
These examples are hugely important if you are engraving extensively with
text spanners.
I had assumed that these were gaps in Lily's functionality; good to see I
was wrong.
Trevor.
--
Trevor Bača
www.trevorbaca.com
soundcloud.com/trevorbaca
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