Opaque fonts/colorspace. Quartz

[Adam Fedor]

I finally got around to making colorspace and font passing between the 
front-end and backend opaque, which means you could override the methods 
to create and set colorspaces and fonts to return and accept a backend 
specific structure (See AppKit/NSGraphicsContext.h and 
AppKit/GSFusedSilicaContext.h).

While I was at it, I partially implemented a Quartz-like interface, 
called FusedSilica (FusedSilica is the amorphous version of silicon 
dioxide to crystaline Quartz - it's a bit more flexible and useful for 
manufacturing purposes (That's my own little optics humour)). I don't 
really expect it to be used, since if you have the AppKit, you hardly 
need to drop down to the Quartz interface. I just did it to be pedantic 
and just in case somebody wanted it...


--
Adam Fedor, Digital Optics Corp.      | I'm glad I hate spinach, because
http://www.doc.com                    | if I didn't, I'd eat it, and you
                                      | know how I hate the stuff.