This is mostly a simple lexical search+replace but the absence of operator< for
std::weak_ptr<T> leads to some complications, particularly with Evoral::Sequence
and ExportPortChannel.
This makes "sequential" more or less mean an octave vertical interval,
but only for in-key mode. For chromatic mode, "sequential" is still just a
naive wrap-around layout for every note.
"Mostly" because there are still some issues with horizontal overlap between
entries, but I think that's something that needs to be addressed separately.
Like earlier issues, this was caused by using a screen-derived or default
cairo/pango context. I also tinkered with some constants to make things look
sensible to me, and hopefully everywhere since it should always look the same
with the context fix.
In file included from /usr/share/mingw-w64/include/windows.h:71:0,
from /home/ardour/win-stack-w32/include/pthread.h:198,
from /home/ardour/ardour-w32/libs/pbd/pbd/event_loop.h:29,
from /home/ardour/ardour-w32/libs/pbd/pbd/signals.h:42,
from /home/ardour/ardour-w32/libs/midi++2/midi++/parser.h:26,
from ../libs/surfaces/push2/mix.cc:30:
/usr/share/mingw-w64/include/wingdi.h:3049:67: note: candidates are: WINBOOL Rectangle(HDC, int, int, int, int)
In file included from ../libs/surfaces/push2/mix.cc:48:0:
/home/ardour/ardour-w32/libs/canvas/canvas/rectangle.h:30:48: note: class ArdourCanvas::Rectangle
