This query has a response that interferes with key f4. We need to fix
that parsing before doing sixel queries, and we don't even support
sixels yet.
Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
Implement our own grapheme measuring function which switches on whether
the terminal supports mode 2027
Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
We don't need to keep references to the parent. We only need to
calculate offsets when we initialize a new window.
Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
