On Wed, Jul 4, 2012 at 2:34 PM, Janek Warchoł <janek.lilyp...@gmail.com> wrote:
> Hi,
>
> as i'm working with grob alignment, i've stumbled upon
>
> if (Paper_column::has_interface (him))
>     return scm_from_double (0.0);
>
> in Self_alignment_interface::aligned_on_parent - I'm not sure what is
> its purpose.  This was introduced by Han-Wen's commit
> ebb1f1f12ab21af1d365a635aa17e39e47a7c2b5, but the commit doesn't
> contain any additional explanations.

Paper column extents usually are not what you want if there are
multiple staves, since it's the union of things in all staves .  Also,
grobs that align on parents should usually have something more
specific as X-parent (eg. a notehead).


-- 
Han-Wen Nienhuys - han...@xs4all.nl - http://www.xs4all.nl/~hanwen

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