GSequence is useful and provides us with a convenient API, however,
it pretty much guarantees cache misses when iterating, lots of pointer
chasing, and scattered memory.
gdkarrayimpl.c works around all of that, at the cost of more expensive
additions and removals. But because we do a lot more lookups compared
to edits, there should still be benefits to it.
Change the backing store to be based on gdkarrayimpl.c.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-calendar/-/merge_requests/757>
This is a GListModel implementation that is specific to
GcalEvents. Events are stored in a GSequence in order of
date.
Add a couple of tests exercising additions and removals.
WIP: add more tests
Part-of: <https://gitlab.gnome.org/GNOME/gnome-calendar/-/merge_requests/742>
Georges Basile Stavracas Neto