[cairo] Re-working cairo_current_path

[Keith Packard]

Around 13 o'clock on Jan 24, =?UTF-8?B?S3Jpc3RpYW4gSMO4Z3NiZXJn?= wrote:

> Ah, right, take the length out of the cairo_path_element_t and keep 
> knowledge of element size inside cairo.  Yeah, that's better and makes 
> it possible to adjust the path representation later on if necessary.

If we need to change the path representation, we can create a new 
function that returns the new type.  As long as this datatype is allocated 
explicitly for the clients use and isn't simply returned as a pointer to 
the internal state of the path, I don't see the benefit in making the 
contents opaque.  It's not like applications are going to magically be 
able to deal with a new component of the path...

-keith


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