This fixes warning spew because warnings are thrown in case of mixed use
of cairo_status_t and cairo_int_status_t, which is a hack in cairo
because C99 doesn't support real enums (it's mapped to uint8 internally).
The "register" storage type is no longer a thing in C++17, which would
also warn; just letting the compiler decide is best, so just removing
the keyword is the proper solution in cairoint.h
According to MSDN documentation, the count of the style array passed to
ExtCreatePen is limited to 16. When we call ExtCreatePen with cStyle=17 or more,
it simply returns an error and the cairo surface used for printing is getting
into an error state, after which nothing further gets printed.
Instead of erroring out, this code change returns an unsupported status so that
cairo will provide fallback handling for it.
This addition of a closure point (explicitly completing the closed shape) isn't
strictly needed in our current cairo version as it works perfectly fine without,
but if our clipping extents code changes then this might cause problems if the
extra point isn't added (in case of 0-length paths).
This extension allows us to get font hint metrics without having to create and
destroy cairo font options structs. Since this is used in loops, this will
improve performance, especially in documents which have many text segments.
- Move header licensing from tri-license to MPL 2.0. MPL-compatible
other licensing has been retained where originally present.
- Remove individual superseded licensing terms.
- Remove patches, outdated readmes & incomplete patch summaries.
- Remove incomplete cairo release notes (only went up to 1.6.4 anyway).
- Rewrite COPYING to indicate the current state of the library in tree.
