Re: Issue 1955 in lilypond: Patch: improving spacing over and below bar lines

[lilypond]

Comment #10 on issue 1955 by address@hidden: Patch: improving spacing  
over and below bar lines
http://code.google.com/p/lilypond/issues/detail?id=1955

LilyPond currently does something less sophisticated.  There are beveled  
margins (yellow and blue lines) around bar lines and clefs and such, whose  
size is defined by 'skyline-vertical-padding.

Graphical elements that clear these margins (or that stay out of the way  
like text and dynamics) may pass over the bar line.  The problem comes with  
graphical elements from other staff-like contexts, especially Lyrics,  
because LilyPond has not yet decided how far away they will be.  She  
tentatively assumes that Lyrics will be far enough from the staves to clear  
everything after the font-matter, but does not yet allow for  
the 'skyline-vertical-padding.

In cases where the beveled margins extend beyond everything else on the  
staff, they can catch Lyrics, like the "through" above.

Mike's patch (now at http://codereview.appspot.com/5323062) would replace  
the 'skyline-vertical-padding with an adaptive 'extra-spacing-height that  
prevents notes from moving over/under.  It saves the trouble of considering  
Span Bars (issue 2000).

Attachments:
        1955.png  15.3 KB