[Cairo] How do I get the CTM?
cworth at east.isi.edu
Wed Sep 3 06:42:29 PDT 2003
On Sep 3, Banlu Kemiyatorn wrote:
> What is the best way to get the ctm?
Today[*], one would use:
cairo_get_matrix (cairo_t *cr,
double *a, double *b,
double *c, double *d,
double *tx, double *ty);
> Or will it work/good if I include cairoint.h and
> try to get it via cairo->gstate->ctm?
That would be bad. Nothing but Cairo itself should include
cairoint.h. That file contains implementation details that are not
guaranteed to remain the same from one release to the next.
[*] PS. Just a heads-up so you know where things are going:
There are two changes needed in this API. First, it should accept a
cairo_matrix_t* rather than six double*, (it appears I missed this
function when I added the cairo_matrix_t type). Also, all of the
cairo_get_* functions will be renamed to cairo_current_* sometime
soon. So this function will eventually be:
cairo_current_matrix (cairo_t *cr,
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