Oups, I forgot that!
I'll check for a workaround.
BTW, there was this solution but looks strange with flats:
\score {
\new Staff {
\parenthesize cis'4. s8 \parenthesize bes4.
}
\layout {
\context {
\Voice
\override ParenthesesItem.stencil = #(lambda (grob)
(let* ((acc (ly:grob-object (ly:grob-parent grob Y)
'accidental-grob))
(dot (ly:grob-object (ly:grob-parent grob Y) 'dot)))
(if (not (null? acc)) (ly:pointer-group-interface::add-grob grob
'elements acc))
(if (not (null? dot)) (ly:pointer-group-interface::add-grob grob
'elements dot))
(parentheses-item::print grob)))
}
}
}
Cheers,
Pierre
2015-02-06 20:53 GMT+01:00 James Worlton <jworl...@gmail.com>:
> On Fri, Feb 6, 2015 at 1:20 PM, Pierre Perol-Schneider <
> pierre.schneider.pa...@gmail.com> wrote:
>
>> As english isn't my native language I'm not sure to find the right words.
>> Manual says it "computes the width of an object" (see:
>> http://lilypond.org/doc/v2.19/Documentation/extending/callback-functions.html
>> ).
>> With "my" words I'd say that it'll help you to add or reduce the space
>> before and/or after a grob.
>>
>> Cheers,
>> Pierre
>>
>> 2015-02-06 20:08 GMT+01:00 James Worlton <jworl...@gmail.com>:
>>
>>> Thanks, Pierre. That's exactly what I'm looking for. So what does the
>>> ParenthesesItem X-extent do?
>>>
>>> James W
>>>
>>> On Fri, Feb 6, 2015 at 12:49 PM, Pierre Perol-Schneider <
>>> pierre.schneider.pa...@gmail.com> wrote:
>>>
>>>> Hi James,
>>>>
>>>> I understand the idea but I thing you missunderstand the X-extent
>>>> effect.
>>>> If I follow you, you'd rather extent the note head.
>>>> So here it goes :
>>>>
>>>> \version "2.19.15"
>>>>
>>>> parenWider = {
>>>> \once\override NoteHead.X-extent = #'(-1.5 . 1.3)
>>>> \once\override Accidental.X-extent = #'(1.5 . 0)
>>>> \once\override Accidental.extra-offset = #'(1.5 . 0)
>>>> }
>>>>
>>>> \score {
>>>> \new Staff { \parenWider \parenthesize fis'4 }
>>>> }
>>>>
>>>> HTH,
>>>> Pierre
>>>>
>>>
> Thanks for pointing that out. I think I understand it.
>
> A problem I've now encountered is that the 3 overrides in your solution
> make ledger lines longer towards the accidental. Neither of the overrides
> I've tried adding to the parenWider definition make any difference:
>
> \once \override Staff.LedgerLineSpanner.X-extent = #'(1.5 . 0) %various
> values, both positive and negative have no effect
>
> or
>
> \once \override Staff.LedgerLineSpanner.length-fraction = 0.1 %various
> values, both positive and negative have no effect
>
> Is there something I'm missing regarding how to override ledger lines?
>
> James W
>
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