[haiku-development] BTextView::StyleBuffer

Hi there,

I am a bit stupified about what the concept of the BTextView::StyleBuffer 
class. Obviously, it manages the different styles that are in use by the 
corresponding BTextView. But what is the exact purpose of fNullStyle?
I can see that it is being synced to the "real" style-buffer under some 
conditions, but I fail to extract the concept behind it.

Can anyone shed some light on this, please?

cheers,
   Oliver

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