Hi Simon,
Simon Albrecht-2 wrote
> I would like to override RehearsalMark’s self-alignment-X to -1 only if
> it’s at start-of-line. How would I find that out in a grob callback?
I'm really no expert on this topic, but I once got some help from David
Nalesnik for snippet 1000:
\override HorizontalBracket.stencil =
$(lambda (grob)
(let* (
(open-on-left (= 1 (ly:item-break-dir (ly:spanner-bound grob
LEFT ))))
(open-on-right (= -1 (ly:item-break-dir (ly:spanner-bound grob
RIGHT))))
)
; ...do some more stuff...
))
The NR tells about those to functions:
Function: ly:item-break-dir it
The break status direction of item it. -1 means end of line, 0 unbroken,
and 1 beginning of line.
Function: ly:spanner-bound spanner dir
Get one of the bounds of spanner. dir is -1 for left, and 1 for right.
Hope that helps.
Cheers,
Klaus
--
View this message in context:
http://lilypond.1069038.n5.nabble.com/Grob-callback-query-position-unbroken-end-of-line-start-of-line-tp201994p201995.html
Sent from the User mailing list archive at Nabble.com.
_______________________________________________
lilypond-user mailing list
lilypond-user@gnu.org
https://lists.gnu.org/mailman/listinfo/lilypond-user
