[cairo-bugs] [Bug 5686] RFE - named savepoints

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https://bugs.freedesktop.org/show_bug.cgi?id=5686          
     




------- Additional Comments From cworth at cworth.org  2006-01-24 13:08 -------
Actually, cairo_copy had some huge problems and that's why we removed it.

I've always known we needed a real solution for the use case and I had often
imagined adding:

cairo_gstate_t *
cairo_get_gstate (cairo_t *cr);

void
cairo_set_gstate (cairo_t *cr, cairo_gstate_t *gstate);

but I've never been satisfied enough with that interface to actually implement.

But, now, Robert, you've made a fantastic suggestion. I really like the insight
that the desired action here is a variant of save/restore. Here's the API I
think I would like:

cairo_state_t *
cairo_save_state (cairo_t *cr);

void
cairo_restore_state (cairo_t *cr, cairo_state_t *state);

We should talk about this on the cairo at cairographics.org mailing list.

I like this enough that I'll draft a message there if nobody beats me to it.

-Carl
          
     
     
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