[cairo] API Shakeup: cairo_current_matrix

Carl Worth cworth at cworth.org
Fri Apr 8 12:51:48 PDT 2005

On Wed, 06 Apr 2005 16:55:15 -0400, Carl Worth wrote:
> +cairo_matrix_t
> +cairo_get_matrix (cairo_t *cr);

After actually using the above function, I found it was a rather
clumsy fit with:

	cairo_set_matrix (cairo_t *cr, cairo_matrix_t *matrix);

Since in the first case cairo_matrix_t is being returned directly as a
value, but in the second it is not. And it seems to me like it would
be a rather bad idea to have cairo_set_matrix accept a cairo_matrix_t
as a value.

So, instead, I've fixed this by putting cairo_get_matrix back like it
looked even before the cairo_matrix_t datatype was exposed:

	cairo_get_matrix (cairo_t *cr, cairo_matrix_t *matrix);

Which gives much better symmetry in use.


PS. I'm still mulling over the 3x3 proposals.
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