Re: [Lilypond-auto] Issue 3907 in lilypond: Patch: Moves the Box class to flower/ in a new class called FlowerBox. Wraps FlowerBox as Box smob in lily/

[lilypond]

Comment #3 on issue 3907 by address@hidden: Patch: Moves the  
Box class to flower/ in a new class called FlowerBox. Wraps FlowerBox as  
Box smob in lily/
http://code.google.com/p/lilypond/issues/detail?id=3907

The idea is not to recreate a cgal but rather to abstract out the tools  
that LilyPond uses for spacing so that other people wishing to implement  
horizontal spacing algorithms can do so.

I have no clue how the innards of Scheme work, so if it is a bad idea to  
create a wrapper around an internal class then I'll drop this external  
library idea.  I'd be interested, though, to see if this causes a  
significant slow down.  My tests on this patch didn't show any slow down.   
In general, why is it a bad idea to create a class Foo and then create a  
class SchemeFoo that derives from Foo and that is declared as a smob?

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