Re: DurationLine avoiding RehearsalMarks

[Thomas Morley]

Am Mo., 11. Apr. 2022 um 10:56 Uhr schrieb Mark Knoop <mark@opus11.net>:
>
> At 10:30 on 11 Apr 2022, Thomas Morley wrote:
> > Am Mo., 11. Apr. 2022 um 09:53 Uhr schrieb Mark Knoop <mark@opus11.net>:
> >> At 19:12 on 10 Apr 2022, Mark Knoop wrote:
> >>> I'm trying to debug some issues I'm having with the new DurationLine 
> >>> grob. Previously I've been using a TextSpanner to achieve similar results.
> >>>
> >>> One issue is that DurationLine adds space at the left side of a broken 
> >>> spanner, seemingly to avoid overlapping with a RehearsalMark. I'd like it 
> >>> to start underneath the RehearsalMark, as the TextSpanner does.
> >>>
> >>> The problem is illustrated in this example.
> >>>
> >>> \version "2.23.6"
> >>> \header { tagline = ##f }
> >>> \score {
> >>> <<
> >>> \new Dynamics {
> >>> \repeat unfold 31 { s1 \mark \default }
> >>> }
> >>> \new Voice \with {
> >>> \consists Duration_line_engraver
> >>> } {
> >>> c'1:32\-^\markup "using DurationLine" s1*18
> >>> s1
> >>> \override TextSpanner.style = #'line
> >>> \override TextSpanner.thickness = #4
> >>> \override TextSpanner.outside-staff-priority = ##f
> >>> \override TextSpanner.Y-offset = #0
> >>> r4\startTextSpan^\markup "using TextSpanner" 4 4 4
> >>> R1*16
> >>> <>\stopTextSpan
> >>> R1
> >>> }
> >>> >>
> >>> }
> >>
> >> I'm able to remove the extra space with
> >>
> >> \override Score.RehearsalMark.non-musical = ##f
> >>
> >> but this has some undesirable consequences for RehearsalMark positioning. 
> >> Is there a way to set this only for RehearsalMarks at the start of a line?
> >>
> > Hi Mark,
> >
> > DurationLine is designed not to be printed if breakable items at
> > line-end/start are present, like Clef, KeySignature etc.
> > I wasn't aware RehearsalMark is ofcourse one of them.
> > Currently I'm preparing a patch to disregard RehearsalMark.
> > Is your use-case urgent?
> >
> > Cheers,
> > Harm
>
> Thanks Harm,
>
> I understand. My deadline is end of this week, but if you're able to give me 
> a pointer as to where to start on this then I can have a go at fixing it 
> myself.

I hesitate to post untested wip-code on the user-list, I'll send it privately.

> I've noticed a couple of other occasional (possible) bugs with DurationLine 
> in complex situations, but haven't been yet able to reproduce in a MWE. 
> (Sometimes stopping at the wrong place or not appearing at all.)

Well, without bug-report, no fix ;)

Cheers,
  Harm