Re: Overriding bar-line behaviour
> > What I'd like to achieve:
> > When ending a bar with the repetition sign ":|",
> > I need double lines ("||") at the beginning of the next bar.
>
> It looks as though you actually mean ending/beginning lines, not bars.
Basically, yes.
> > [...]
> > (":||" . (":|" . "||"))
> > [...]
> > Unfortunately, this does not work:
> > LilyPond leaves the end of the line [...] empty,
> > as well as the beginning of the next line.
>
> Lilypond's barline.cc doesn't recognise your bartype string ":||"
> and quietly sets the bartype to empty before continuing.
> So unless you extend the C++ hardcoding you are limited
> to the bartypes listed in the bar-line-interface documentation.
Well, I do not think the problem actually lies in the C++ code but in the way
I tried to override bar-glyph-alist - when I change the code in
scm/output-lib.scm, it does work... even with \bar ":||".
> If you will be using explicit line breaks like in your snippet I would
> suggest a \once-like approach as in the attached barRightrepeatDouble.ly.
This solution works perfectly, thanks a lot! What I actually use is this code:
barCustom =
#(define-music-function (parser location one two) (string? string?)
#{
\once \override Score.BarLine #'break-visibility = #all-visible
\once \override Score.BarLine #'glyph-name = #(lambda(grob)
(if (not (= (ly:item-break-dir grob) RIGHT)) $one $two))
#})
and then e.g. \barCustom ":|" "||"
There is only one detail that need additional attention: It is not possbile to
change the bar lines at the beginning of the first line with this method. I
found the following workaround:
% start first line with repeat
\bar "|:"
% start first line with "thick" double lines
\bar ".|"
% start first line with "thin" double lines
\once \override Score.BarLine #'glyph-name = "||" \bar "|:"
Thanks again for finding a solution!
Matthias
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Re: Overriding bar-line behaviour
Matthias Hüsken wrote:
What I'd like to achieve:
When ending a bar with the repetition sign ":|",
I need double lines ("||") at the beginning of the next bar.
It looks as though you actually mean ending/beginning lines, not bars.
[...]
(":||" . (":|" . "||"))
[...]
Unfortunately, this does not work:
LilyPond leaves the end of the line [...] empty,
as well as the beginning of the next line.
Lilypond's barline.cc doesn't recognise your bartype string ":||"
and quietly sets the bartype to empty before continuing.
So unless you extend the C++ hardcoding you are limited
to the bartypes listed in the bar-line-interface documentation.
If you will be using explicit line breaks like in your snippet I would
suggest a \once-like approach as in the attached barRightrepeatDouble.ly.
Cheers,
Robin
barRightrepeatDouble =
{
\once \override Score.BarLine #'break-visibility = #all-visible
\once \override Score.BarLine #'glyph-name = #(lambda(grob)
(if (not (= (ly:item-break-dir grob) RIGHT)) ":|" "||"))
}
\new Score
{
\new Staff
{
\bar "|:" g'1 \barRightrepeatDouble \break
g'1 \bar "||" \break
}
}
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Re: Overriding bar-line behaviour
Ok, I give up for tonight - obviously, before writing my last mail I tested
while having the new barline definitions in scm/output-lib.scm (instead of
reverting that file).
Which means I cannot get things to work without modifying scm/output-lib.scm.
Any ideas how to put this into a .ly file are most welcome...
Matthias
Am Mittwoch, 16. Februar 2011 schrieb Matthias Hüsken:
> Sorry for the noise on the mailing list - I knew it was some stupid
> mistake... I tried to override the wrong value, it should have been
>
> \override Score.BarLine #'break-glyph-function =
> #my-bar-line::calc-glyph-name
>
> instead of
>
> \override Staff.BarLine #'glyph-name = #my-bar-line::calc-glyph-name
>
> Corrected file attached. Cheers,
>
> Matthias
>
> Am Mittwoch, 16. Februar 2011 schrieb Matthias Hüsken:
> > Hi again,
> >
> > while trying to change LilyPond's behaviour concerning bar lines, I
> > stumbled upon some strange behaviour. What I'd like to achieve: When
> > ending a bar with e repetition sign ":|", I need double lines ("||") at
> > the beginning of the next bar.
> >
> > I found bar-glyph-alist in scm/output-lib.scm and decided to change it to
> > the following lines (shortened for this example):
> >
> > #(define bar-glyph-alist
> > '(
> > ;; regular bar
> > ("|" . ("|" . ()))
> > ;; repetitions
> > ("|:" . ("|" . "|:"))
> > (":|" . (":|" . ()))
> > (":|:" . (":|" . "|:"))
> > ;; double lines
> > ("||" . ("||" . ()))
> > ;; double lines combined with repetitions
> > ("||:" . ("||" . "|:"))
> > (":||" . (":|" . "||"))
> > ))
> >
> > When setting music now, everything works as expected.
> >
> > As I consider changing LilyPond's default files as hacking, I decided to
> > move the list into my .ly file (see attached file) and revert
> > scm/output-lib.scm to its original state. Unfortunately, this does not
> > work: LilyPond leaves the end of the line (where a repetition sign ":|"
> > should be found) empty, as well as the beginning of the next line.
> >
> > Does anyone have any clues what's going wrong?
> >
> > Thanks,
> >
> > Matthias
--
Matthias Hüsken Phone: +49 202 439-3362
Fachbereich Mathematik Fax: +49 202 439-2912
Bergische Universität
Gaußstraße 20
D - 42097 Wuppertal
e-mail: matthias.hues...@math.uni-wuppertal.de
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Re: Overriding bar-line behaviour
Sorry for the noise on the mailing list - I knew it was some stupid mistake...
I tried to override the wrong value, it should have been
\override Score.BarLine #'break-glyph-function = #my-bar-line::calc-glyph-name
instead of
\override Staff.BarLine #'glyph-name = #my-bar-line::calc-glyph-name
Corrected file attached. Cheers,
Matthias
Am Mittwoch, 16. Februar 2011 schrieb Matthias Hüsken:
> Hi again,
>
> while trying to change LilyPond's behaviour concerning bar lines, I
> stumbled upon some strange behaviour. What I'd like to achieve: When ending
> a bar with e repetition sign ":|", I need double lines ("||") at the
> beginning of the next bar.
>
> I found bar-glyph-alist in scm/output-lib.scm and decided to change it to
> the following lines (shortened for this example):
>
> #(define bar-glyph-alist
> '(
> ;; regular bar
> ("|" . ("|" . ()))
> ;; repetitions
> ("|:" . ("|" . "|:"))
> (":|" . (":|" . ()))
> (":|:" . (":|" . "|:"))
> ;; double lines
> ("||" . ("||" . ()))
> ;; double lines combined with repetitions
> ("||:" . ("||" . "|:"))
> (":||" . (":|" . "||"))
> ))
>
> When setting music now, everything works as expected.
>
> As I consider changing LilyPond's default files as hacking, I decided to
> move the list into my .ly file (see attached file) and revert
> scm/output-lib.scm to its original state. Unfortunately, this does not
> work: LilyPond leaves the end of the line (where a repetition sign ":|"
> should be found) empty, as well as the beginning of the next line.
>
> Does anyone have any clues what's going wrong?
>
> Thanks,
>
> Matthias
--
Matthias Hüsken Phone: +49 202 439-3362
Fachbereich Mathematik Fax: +49 202 439-2912
Bergische Universität
Gaußstraße 20
D - 42097 Wuppertal
e-mail: matthias.hues...@math.uni-wuppertal.de
\version "2.12.2"
% override default bar types to allow arbitrarily placed bar lines
#(define my-bar-glyph-alist
'(
;; regular bar
("|" . ("|" . ()))
;; repetitions
("|:" . ("|" . "|:"))
(":|" . (":|" . ()))
(":|:" . (":|" . "|:"))
;; double lines
("||" . ("||" . ()))
;; double lines combined with repetitions
("||:" . ("||" . "|:"))
(":||" . (":|" . "||"))
))
#(define (my-bar-line::calc-glyph-name grob)
(let* (
(index-cell (lambda (cell dir)
(if (equal? dir 1)
(cdr cell)
(car cell
(glyph (ly:grob-property grob 'glyph))
(dir (ly:item-break-dir grob))
(result (assoc glyph my-bar-glyph-alist))
(glyph-name (if (= dir CENTER)
glyph
(if (and result (string? (index-cell (cdr result) dir)))
(index-cell (cdr result) dir)
#f)))
)
glyph-name
))
\new Score
{
\new Staff
{
\override Score.BarLine #'break-glyph-function =
#my-bar-line::calc-glyph-name
\bar "|:" g'1 \bar ":||" \break
g'1 \bar "||" \break
}
}
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Overriding bar-line behaviour
Hi again,
while trying to change LilyPond's behaviour concerning bar lines, I stumbled
upon some strange behaviour. What I'd like to achieve: When ending a bar with
e repetition sign ":|", I need double lines ("||") at the beginning of the
next bar.
I found bar-glyph-alist in scm/output-lib.scm and decided to change it to the
following lines (shortened for this example):
#(define bar-glyph-alist
'(
;; regular bar
("|" . ("|" . ()))
;; repetitions
("|:" . ("|" . "|:"))
(":|" . (":|" . ()))
(":|:" . (":|" . "|:"))
;; double lines
("||" . ("||" . ()))
;; double lines combined with repetitions
("||:" . ("||" . "|:"))
(":||" . (":|" . "||"))
))
When setting music now, everything works as expected.
As I consider changing LilyPond's default files as hacking, I decided to move
the list into my .ly file (see attached file) and revert scm/output-lib.scm
to its original state. Unfortunately, this does not work: LilyPond leaves the
end of the line (where a repetition sign ":|" should be found) empty, as well
as the beginning of the next line.
Does anyone have any clues what's going wrong?
Thanks,
Matthias
\version "2.12.2"
% override default bar types to allow arbitrarily placed bar lines
#(define my-bar-glyph-alist
'(
;; regular bar
("|" . ("|" . ()))
;; repetitions
("|:" . ("|" . "|:"))
(":|" . (":|" . ()))
(":|:" . (":|" . "|:"))
;; double lines
("||" . ("||" . ()))
;; double lines combined with repetitions
("||:" . ("||" . "|:"))
(":||" . (":|" . "||"))
))
#(define (my-bar-line::calc-glyph-name grob)
(let* (
(index-cell (lambda (cell dir)
(if (equal? dir 1)
(cdr cell)
(car cell
(glyph (ly:grob-property grob 'glyph))
(dir (ly:item-break-dir grob))
(result (assoc glyph my-bar-glyph-alist))
(glyph-name (if (= dir CENTER)
glyph
(if (and result (string? (index-cell (cdr result) dir)))
(index-cell (cdr result) dir)
#f)))
)
glyph-name
))
\new Score
{
\new Staff
{
\override Staff.BarLine #'glyph-name = #my-bar-line::calc-glyph-name
\bar "|:" g'1 \bar ":||" \break
g'1 \bar "||" \break
}
}
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