Re: Issue 4169: Line and page breaking syntactic sugar (issue 156400043 by address@hidden)

[dak]

On 2014/10/22 05:48:36, Keith wrote:
> On Tue, 21 Oct 2014 09:33:56 -0700,
<mailto:address@hidden> wrote:

> > I've decided to keep the reverts for the On predefs, since \once
does
> > not do what [the name implies] with these overrides.

> Yuck.  The problem seems to be that the override takes effect at the
first beat
> in a bar, after the paper-column for the previous barline has been
generated,
> and the \once makes the override expire before the next bar.

> Unfortunately this also means that
>    \override Score.NonMusicalPaperColumn.line-break-permission =
#'allow
>     R1
> only has effect /after/ the R1.

> We have a workaround for that timing problem in \overrideProperty, and
then
> \once works fine with

> autoLineBreaksOn = {
>    \overrideProperty Score.NonMusicalPaperColumn.line-break-permission
#'allow
>    \override Score.NonMusicalPaperColumn.line-break-permission =
#'allow }

I never really got \overrideProperty.  Would it cooperate with \once?
Does it only take effect once?


https://codereview.appspot.com/156400043/