Re: Spacing issue after Mark and TextScript

[Thomas Morley]

Am Fr., 23. Nov. 2018 um 15:28 Uhr schrieb David Sumbler <address@hidden>:
>
> -----Original Message-----
> From: David Sumbler <address@hidden>
> Reply
> -To: address@hidden
> To: address@hidden
> Subject: Spacing issue after Mark and TextScript
> Date: Wed, 21 Nov 2018 12:24:29 +0000
>
> %%%%%%%%%%%%%%%%%%%
> \version "2.19.81"
>
> #(set-global-staff-size 12)
>
> indent = #0
>
> { \textLengthOn
>   \time 5/4
>   r2 r4.
>   \override Score.RehearsalMark.self-alignment-X = #-1
>   \override Score.RehearsalMark.font-size = #5
>   \mark \markup {"After the thirty-third encore, the Emperor arose."}
>   \hide TextScript
>   r8\fermata_"mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm"
>   r4 |
> %%%  \noBreak
>   R4*5 | R4*5 | R4*5 |
> }
> %%%%%%%%%%%%%%%%%%%
>
> When the above is compiled, the spacing for notes/rests after the Mark
> and TextScript is increased.  This becomes even more obvious if
> \noBreak is uncommented: the final crotchet rest of the first bar and
> the whole bar rest of the second now take up so much horizontal space
> that the line runs outside of the right-hand margin, as is shown in the
> attached image.  Meanwhile the rests at the start of the first bar are
> squashed together to make room for the unnecessary empty spaces later
> in the line.  Things are restored to normal after a line break.
>
> If I remove either the RehearsalMark or the TextScript, the problem
> disappears.  The purpose of the textscript is to prevent the crotchet
> rest appearing before the "Mark" is finished.
>
> I have used the same kind of structure in numerous other places in this
> piece without problems, and despite nearly a day of experimentation I
> can't see why this case behaves differently.  (There are reasons for
> presenting these texts as Marks rather than Text attached to a rest,
> but they are not relevant to the problem.)
>
> Any suggestions?  Is there perhaps a way of resetting the spacing
> parameters to something sensible?
>
> David
>
> -----Original Message-----
> From: Pedro Pessoa <address@hidden>
> To: address@hidden
> Subject: Re: Spacing issue after Mark and TextScript
> Date: Wed, 21 Nov 2018 09:26:42 -0700 (MST)
>
> Hey David. Not sure if I got how you want it to be, but - with the
> \nobreak
> uncommented) - if you add tree more m's to the TextScript, it produces
> something which looks right. Don't know why.
>
> Pessoa
>
> mailing_Spacing_issue_after_Mark_and_TextScript.png
> <
> http://lilypond.1069038.n5.nabble.com/file/t5699/mailing_Spacing_issue_after_Mark_and_TextScript.png>
>
> --
>
>
> True - it looks as if the spacing text (the "mmmm"-s) needs to be as
> far as possible exactly the same length as the TextScript.
>
> But add even one more "m" and the right-hand end of the staff is again
> noticeably beyond the right margin.
>
> And even with the "correct" number of "m"s, so that the end of the line
> appears in (roughly?) the right place, the rests at the beginning of
> the line are ridiculously compressed together.  The space give to the
> crotchet rest at the end of the bar is far greater than that allowed
> for the dotted crotchet earlier in the same bar.
>
> Does anyone have any idea what is going on here?
>
> David

I noticed with version 2.12.3 the output is as desired.

Then I identified the first commit which changes the behaviour. First
bad commit is:

commit 53db923e715126eb9463220526b4838fbfd3dad4
Author: Andrew Hawryluk <address@hidden>
Date:   Sat Jan 15 13:42:03 2011 -0700

    Change keep-inside-line defaults to true.

    As discussed in Issue #1470, the default should be changed so that
    good layout with a slight performance hit is the default.

https://sourceforge.net/p/testlilyissues/issues/1470/
https://codereview.appspot.com/4243041/
Which is LilyPond-version 2.13.52


Tbh, I never noticed bad behaviour caused by this patch before.
I suspect something rotten is present elsewhere, though I've no clue
what it might be or where to look...


Nevertheless, you could revert the settings done by this patch globally with:

\layout {
  \context {
    \Score
    \override NonMusicalPaperColumn.keep-inside-line = #'()
    \override PaperColumn.keep-inside-line = #'()
  }
}

This may have some unwanted effects, though.
Less invasive would be:

#(set-global-staff-size 12)

indent = #0

{ \textLengthOn
  \time 5/4
  r2 r4.

  \overrideProperty Score.NonMusicalPaperColumn.keep-inside-line #'()
  \overrideProperty Score.PaperColumn.keep-inside-line #'()
  \override Score.RehearsalMark.self-alignment-X = #-1
  \override Score.RehearsalMark.font-size = #4
  \mark \markup {"After the thirty-third encore, the Emperor arose."}
  \hide TextScript
  r8\fermata_"mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm"
  r4 |
  \noBreak
  R4*5 | R4*5 | R4*5 |
}


HTH,
  Harm