[cairo] Managing LineLayouts

[Travis Griggs]

I'm using the pango-view viewer as a means to flesh out our Smalltalk  
binding to Pango. Many of the Pango types are opaque structures, with  
the ref_counting, and these map very nicely to object classes in  
Smalltalk. One that is less so, is the PangoLayoutLine that one sees  
being used at line 227 of the viewer-pangocairo.c file. I can model a  
C structure fine in Smalltalk, that's not so much the problem, but  
what is unclear to me from that code, or the docs, is how those  
structures are managed.

When using the pango_layout_get_line() function, does it alloc a new  
structure and return the pointer to it? Or is it the case, that the  
structure is managed by the Layout or Iterator, and when those are  
freed, the internal LineLayout structures are freed?

TIA

--
Travis Griggs
Objologist
My Other Machine runs OSX. But then... so does this one.