... Format arguments are substituted into the translation of the msgid, which
may not be known at the time the format arguments are captured (because locale
may change). This allows TranslatableString with arguments to be constructed
at static initialization time.
There is also a special "verbatim" or null context which makes no translations
of msgids.
There is not yet any use of other contexts besides default or null.
... include it in the msgid intead, to get appropriate translations. For
instance some locales use the same character but prefer to insert a space
before it.
... And corrected improper connections in HistoryWindow and ContrastDialog,
improper because they got called with the wrong this pointer, to
the control instead of the dialog. But that was harmless anyway because the
handlers did not use this.
... Trying to reduce that just to chained calls on S, or conditional and looping
logic for variations in layout.
Lift some declarations to higher scope; or use expressions that avoid local
variables; or even use lambdas for more complicated computation of arguments
for the member functions of S.
Problem:
Currently calling Track::EnsureVisible() also sets the track as focus.
In Audacity 2.3.3 the timing of the code to set the focus was changed. Rather than a direct call, an event is queued, and then the focus is set. This has changed the timing of the focus event which is sent with respect to other focus and name change events. In particular in the case of toggling the selectness of the focused track, this moved the focus event to be after the name change event.
These changes only had an effect on NVDA - Jaws and Narrator were unaffected.
The introduction of this bug has highlighted an existing problem.
1. There are a small number of existing cases where a track needs to be visible, but where it is already the focus, and so setting the focus is unnecessary. For example, pressing Enter to toggle whether a track is selected.
2. Some of the Audacity code which calls EnsureVisible() is written with the assumption that EnsureVisible() doesn't set the focus, and so there are unnecessary focus events. Whilst other code which calls EnsureVisible() assumes that it also sets the focus. Confusion.
The Fix:
Remove the setting of focus from within Track::EnsureVisible(), and so remove the unnecessary focus events.
Calls to set the focus were added before calls to EnsureVisible where the code was relying on EnsureVisible to set the focus. In TrackPanel::ProcessUIHandleResult, and TrackPanel::OnMouseEvent, I wasn't sure if the focus needed to be set, so called it anyway to ensure that the behaviour did not change.
So I would like to remove the setting of focus from within Track::EnsureVisible(), and add explicit calls to set the focus where necessary.
I think this would make the code clearer, remove unnecessary calls to set the focus, and make it easier to keep NVDA happy.
The Calf plugin suite exposes Event ports which is currently not supported or defined in `liblilv`, so instead of flat rejecting the filter, test the port name for `Events` and allow them to load.
