Am 13.03.2017 um 13:16 schrieb David Kastrup: > Urs Liska <u...@openlilylib.org> writes: > >> Am 13.03.2017 um 13:07 schrieb David Kastrup: >>> Urs Liska <u...@openlilylib.org> writes: >>> >>>> when writing a callback function to override a stencil, how can I attach >>>> the original point-and-click link to the resulting graphics? >>> Isn't it attached automatically? I don't think the usual stencil >>> callbacks bother with point-and-click info themselves. >> It seems not, they are not clickable. >> I'm calling the function with \override Tie.stencil = #arced-curve-stencil >> >> which is defined as >> >> #(define (arced-curve-stencil grob) >> ... >> >> and returns the result of a (ly:stencil-translate (ly:make-stencil call. > The point-and-click area is rectangular and taken from the stencil's > position and dimensions, so there is suspicion that they aren't what you > want them to be.
OK. That means it could either be where the original grob would have been printed or maybe originating before the stencil-translate is applied. I'll investigate. > >>>> Is that even possible, as I'm not actually dealing with the grob >>>> anymore (isn't it)? >>>> >>>> I know how to get the location from inside the ties and slurs I'm >>>> dealing with, but I don't know how I can get this information back >>>> into the resulting element in the PDF. >>> With stencils, you should not need to do anything. When calling >>> ly:engraver-make-grob yourself, be sure to specify a good cause. Then >>> the originating event's point-and-click info will be automatically >>> attached. >> As usual the information about ly:engraver-make-grob on the >> Scheme-functions page doesn't help me very much. All I would be able to >> figure out is the cause, but what kind of "engraver instance" should I >> be referring to here? > The one passed to the engraver callback? You mean what I refer to as "grob" in my example? -- u...@openlilylib.org https://openlilylib.org http://lilypondblog.org _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user