[cairo] Cairo version now at 1.5.1

[Tamas K Papp]

On Wed, Jun 27, 2007 at 02:50:42PM -0700, Carl Worth wrote:
> With 1.4.10 out now, I think we're definitely ready to start more
> serious work on getting 1.6 done. So I've gone ahead and bumped the
> version of cairo to 1.5.1 so people should feel free to start pushing
> stuff out that is clearly 1.6 material.
> 
> Some of the things that have been starting to stack up include:
> 
>  * Adrian's finer-grained fallback work, (I know Adrian wanted some
>    help on the device offset+scale issue which I hope to look at
>    soon).
> 
>  * Vlad's 24.8 work. Vlad, did you need more review on this or is it
>    ready to go?
> 
>  * Soeren's use-external-pixman-library work.
> 
>  * Other things?

I don't know if this would make sense in a wider perspective, but a
registering a callback function (a `hook') that would be called
whenever a surface changes (ie is drawn on) would be nice, especially
for X11 surfaces.

At the moment, in the Common Lisp interface cl-cairo2 I keep track of
operations that change the surface (fill, stroke, etc) and call this
callback function each time, but if more operations show up that
change a surface, this could become tedious to maintain.

Thanks,

Tamas