Re: sponsorship request: minimum-measure-left-padding

[Kieren MacMillan]

Hi, Damian --

> but isn't the collision of (for instance) flats with bar lines a  
> bug/defect?

I think so, but currently it's not being given very high priority...  
so I thought I'd try to escalate it!  =)

> btw, what are the best workarounds without adding spacers?

The two I've been playing with are:
    (1) Adjust the BarLine #'spacing alist: difficult to really  
understand how each setting interacts (or conflicts) with other  
properties, so I avoid this.
    (2) Adjust the #'X-extent of the "offending element" (i.e., the  
one that Lilypond *should* be automatically adjusting): this is  
definitely easier than (1), and essentially every grob responds to an  
#'X-extent adjustment, but it's still a lot of manual labour when  
you're adjusting nearly every measure, and every time the layout  
changes you need to revisit every single adjustment.

Below is an example of fixing a flat-collision problem using method  
(2). Although there is (IMO) a problem with every single measure in  
the default engraving, my favourite is m. 4, where the flat looks  
like it's part of the key signature...  =\

Hope this helps!
Kieren.
_______________________________

\version "2.11.23"  % Mac OS X 10.4.9
\include "english.ly"

accTooClose = \relative
{
        \time 4/4
        \key af \major
        \repeat "unfold" 32 { <cf' df>8 }
}

accPadded = \relative
{
        \time 4/4
        \key af \major

        \override Accidental #'X-extent = #'(-0.75 . 0.85)
        \repeat "unfold" 8 { <cf' df>8 }

        \override Accidental #'X-extent = #'(-0.5 . 0.85)
        \repeat "unfold" 16 { <cf df>8 }

        \override Accidental #'X-extent = #'(-0.95 . 0.85)
        \repeat "unfold" 8 { <cf df>8 }
}

\paper
{
    ragged-right = ##t
        printallheaders = ##t
}

\score
{
    \accTooClose
        \header
        {
                subtitle = "Default"
        }
}

\score
{
    \accPadded
        \header
        {
                subtitle = "Accidental Manually Padded (X-extent)"
        }
}