This splits apart the actual signal handler from the work that needs to be done
to update the GUI in response to a tempo map change. This allows us to do the
visual update when we are manipulating the thread-local write copy of the map
during e.g. a drag operation.
This is in preparation to always show a line, which show
the current value in case there are no automation points yet.
It also unconditionally snapshots the current value without
changing automation modes to touch/write first.
The virtual keyboard sends all events with the same timestamp.
When playing fast (mouse-sweep) note-on and note-off will have
the same timestamp.
Since dbd8089fb8, a393f75694 concurrent MIDI are sorted with note-off
first. This correctly handles events when played from the timeline:
note-on .. note-off|note-on ... note-off
But in case of a MIDI keyboard a note-off event must be send after
the note-on.
The ::start_drag() implementation now defers add/extend selection logic to
MidiRegionView::note_selected(), and drops the original limitation that we did
not do extend-selection on button press, only button release.
When adding ffmpeg 5.0 compatibility, the dialog was
dramatically simplified. This re-introduces some options
for audio-quality and also saves/restores settings.
Found via `codespell -q 3 -S *.po,./.git,./share/patchfiles,./libs,./msvc_extra_headers,./share/web_surfaces,*.patch -L ba,buss,busses,discreet,doubleclick,hsi,ontop,ro,scrollin,seh,siz,sord,sur,te,trough,ue`
Previously, when running timefx on multiple regions on
the same track, undo commands accumulated for each region
in the playlist. Resulting in duplicate actions on undo/redo.
```
<UndoTransaction tv-sec="1649607270" tv-usec="646684" name="pitch shift">
<StatefulDiffCommand obj-id="1690" type-name="ARDOUR::AudioPlaylist">
<Changes>
<Regions>
<Add id="4046"/>
<Remove id="2284"/>
</Regions>
</Changes>
</StatefulDiffCommand>
<StatefulDiffCommand obj-id="1690" type-name="ARDOUR::AudioPlaylist">
<Changes>
<Regions>
<Add id="4046"/>
<Add id="4057"/>
<Remove id="2284"/>
<Remove id="2388"/>
</Regions>
</Changes>
</StatefulDiffCommand>
...
```
gtk2_ardour/wscript:15:1 redefinition of unused 'TaskGen' from line 3
wscript:102:9 dictionary key 'sse' repeated with different values
wscript:104:9 dictionary key 'sse' repeated with different values
