Re: gnustep coding standard and cairo-back

[Fred Kiefer]

I just commited the cairo backend, not to block it any longer as I will 
be away for two weeks starting tomorrow. Most of the code is the 
original stuff from Banlu, just reindented and a bit closer to the 
GNUstep coding standard (All but CairoFreeTypeFontInfo.m, which is not 
used). But there are a few noteworth changes:

- The surface files have been moved from x11 to cairo, so things are 
closer together and there will be no effect to people not using cairo.

- Removed most compiler warnings.

- Removed a lot of verbose messages.

- Changed the glyph offset from (mostly) 31 to 29, as this gives a 
correct text display for me. I don't understand why this is needed, 
perhaps Banlu could explain it?

- A few additions to CairoGState.

There are severe limitations to this backend at the moment. It sometimes 
does not update the display. Some methods are not implemented and let 
the backend fail.

You configure for cairo with this line:
./configure --enable-graphics=cairo

Cheers
Fred