"m...@mikesolomon.org" <m...@mikesolomon.org> writes: > Hey all, > > I'm not too good at writing convert-ly rules. Is there a model I can > use for replacing a property with another? Specifically, I'd like to > write a patch changing: > > TupletBracket.staff-padding > > to: > > TupletBracket.bracket-staff-padding > > as one cannot currently use the side position interface callbacks on > TupletBrackets because staff-padding in the tuplet-bracket-interface > works differently than staff-padding in the side-position-interface. > > Lemme know if anyone has a good solution. Otherwise I'll hack away...
I am not happy about name proliferation. On the other hand, I don't know how something like TupletBracket.tuplet-bracket-interface.staff-padding could sensibly be implemented, and it would be pretty much impossible to know reliably when and when not a further qualification would be required to keep all callbacks properly informed. It might also be possible to let a callback check for the existing grob interfaces in possible cases of contention and only use the respective value if the grob had the proper interface. So you'd have a callback that only looked at staff-padding in the tuplet-bracking-interface manner if the grob had that interface, and would look at it in the side-position-interface manner only if the grob had _that_ interface. That would require giving grobs a set of interfaces that interpret any given property only in one manner. That would work without convert-ly rules and a larger namespace set. It would also mean that you would look at the interfaces of a grob in the documentation to decide which values were supported. That there are some callbacks able to interpret the _same_ property differently depending on the interfaces of a given grob, in contrast, is an implementation detail buried deep enough to probably not appear disturbing to a user. -- David Kastrup _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel
