On 2013/04/02 04:26:29, mike7 wrote:
On 2 avr. 2013, at 00:51, mailto:janek.lilyp...@gmail.com wrote:
>>> As for chain_offset_callback, i've tried it (see attached patch), >>> but i get a strange error: >>> >>> Processing `input/regression/add-stem-support.ly' >>> Parsing... >>> Interpreting music... >>> Preprocessing graphical objects...ERROR: >>> In procedure ly:self-alignment-interface::x-align-grob: >>> ERROR: Wrong number of arguments to >>> #<primitive-procedure ly:self-alignment-interface::x-align-grob> >>> >>> quite frankly, i don't know what's wrong. >>> I've looked at other uses of chain_offset_callback >>> and it seems that i've written my code correctly. > >> I'll look into it when I get home. > > did you have any sucess with this stuff?
Try making the function accept a second optional argument with a
previous offset
(check out the offset functions in side position interface)
I've tried that and it works, but the code got quite ugly - you can see results in dev/janek-chain-optarg (i can abstract some of the duplicated code to a function, but it will still be quite ugly because of an additional level of abstraction). I don't quite see what we gain from using chain_offset_callback - could you explain why we shouldn't just set the property and be done? Janek https://codereview.appspot.com/7768043/diff/46001/scm/define-grobs.scm File scm/define-grobs.scm (right): https://codereview.appspot.com/7768043/diff/46001/scm/define-grobs.scm#newcode143 scm/define-grobs.scm:143: (X-extent . (-0.1 . 0.1)) ;UGH! how to get ambitusline extent from its stencil? On 2013/04/01 05:52:00, MikeSol wrote:
Why can't you use the standard X extent function given in grob.cc?
well, i've tried (X-extent . ,ly:grob::stencil-width) but i keep on getting the same "warning: AmbitusLine has empty extent and non-empty stencil." Besides, wouldn't Lily use that on her own if there was something there? I mean, X-extent should be automatically derived from stencil anyway. So, i think that the problem is in getting extent of a line stencil. https://codereview.appspot.com/7768043/ _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel
