We now try to get to the right location within the MIDI data and continue
playing, rather than pretending that we reached the end.
This also fixes a thinko that caused only the first few notes of a
MIDI trigger to play.
This may also solve cases where due to length, sample rate and tempo
settings, a trigger finished precisely on a ::run() call boundary.
1. leave tertiary-scroll for navigation and primary scroll for session timeline zoom
2. unmodified scroll in edit mode scrolls contents
3. secondary-scroll zooms in and out on contents (i.e. vertical zoom for MIDI)
4. primary-secondary scroll has the just-one-edge behavior previously provided
Import via Drag/Drop previously worked by selecting a track,
and then importing to the selected track.
This approach fails when the selected track is in a track-group,
and selecting the track also selects other tracks of different type.
Now the track to drop onto is passed directly passed through to
::finish_bringing_in_material as existing_track.
* allow to update IR data
* allow to use mono processing in base-class
This is handy for FIR (Readable/ROM), and operating directly
on local data (ratherer than mapped buffers)
Usually C++ class instance has the same mem address as its first parent.
LuaBridge uses this to for derived classes. A TemopPoint instance has
the same address as its parent Tempo. However due to virtual inheritance
this was not the case due to a lack of virtual d'tor.
Now the following Lua code works correctly
```
tm = Temporal.TempoMap.read()
tp = Temporal.timepos_t (0)
print (tm:tempo_at(tp):note_type())
```
Previously the last line failed calling Tempo::note_type()
on a TempoPoint instance, due to memory offset e.g.
TempoPoint: 0x600000ff90e0 Tempo: 0x600000ff90e8
For some reason applying the property change
plist.add (Properties::start, std::numeric_limits<timepos_t>::min());
does not correctly reset the offset of the newly created region.
The during trim-front, the call order is
1. Region::set_position_internal
2. Region::set_length_internal
::set_position_internal sets `_last_length.set_position (position());`
but the later call ::set_length_internal does `_last_length = _length;`
This sets last_position() == position(), and later Region::mid_thaw()
does not call Region::recompute_at_start().
Region gain envelope was not updated.
see also 00a1b7cb24 and 13d10582f0
This regressed with changes to SMFSource to unconditionally load
the model. "Black MIDI Trilogy 2" now shows again in under 4 sec.
Before this change it took roughly 3 mins (!) and the UI was marked
as unresponsive.
