gEDA-dev: Drawing updates for gschem

[Peter Clifton]

On Tue, 2007-11-06 at 22:10 -0500, Ales Hvezda wrote:
> Hi PeterC,
> 
> PS. With these changes it would interesting to see how well cairo behaves
>     instead of gdk (in terms of render performance and general application
>     feel).

That would be nice, I've been following the cairo mailing-list and it
seems that they've got the performance issues of early releases mostly
solved. I suspect these changes will help too.

I'll have to investigate how (if) cairo does XOR drawing, and how that
plays with its default mode of anti-aliasing things.

A plus point, is that the X server's line rasterisation algorithm
produces ugly results for some angles. (I saw a comparison recently to
the "preferred" algorithm that MS Windows and others use.)

Peter