Support drawing svg subsets
ruuda opened this issue · comments
From Reddit: it would be nice to add the ability to render subsets of an svg file.
Rsvg does support this with rsvg_render_handle_cairo_sub
and rsvg_handle_has_sub
, it would not be very difficult to expose this.
What would be required to implement this:
- Add the ffi wrappers for
rsvg_render_handle_cairo_sub
andrsvg_handle_has_sub
insrc/rsvg.rs
. - Change
elements::Element::Svg
to include an optional svg element id, and maybe define a wrapper struct so it can be named. - Add a variant of
builtins::image
that supports subset selection, perhapsimage_subset(fname: string, element_id: string)
. - Expose the new function in
runtime::Env::new
. (Handling of builtins needs some refactoring, but for now that is where builtins are exposed.)