[cairo] [Bug 90166] Add a way to specify units (in SVG output)

[Adrian Johnson]

On 12/10/17 20:55, Antonio Ospite wrote:
> The API addition I originally proposed[1,2] looks like this:
> 
> void cairo_svg_surface_set_document_unit (cairo_surface_t*, cairo_svg_unit_t)
> 
> Where cairo_svg_unit_t is an enum type representing all the possible
> units.

The enum in the patch is:

typedef enum _cairo_svg_unit {
    CAIRO_SVG_UNIT_EM,
    CAIRO_SVG_UNIT_EX,
    CAIRO_SVG_UNIT_PX,
    CAIRO_SVG_UNIT_IN,
    CAIRO_SVG_UNIT_CM,
    CAIRO_SVG_UNIT_MM,
    CAIRO_SVG_UNIT_PT,
    CAIRO_SVG_UNIT_PC,
    CAIRO_SVG_UNIT_PERCENT,
    CAIRO_SVG_UNIT_USER
} cairo_svg_unit_t;

This looks good to me. It just needs a getter. Are all the units in SVG
1.1? If not the minimum version will need to be documented. The default
unit will also need to be documented.