... and break its compile dependency on CommandManager.h by letting it install
callbacks.
This also removes Objective-C mixed code from CommmandManager.
This also eliminates four inclusions of Project.h!
Capture handler state is also global, not per project, though the
CommandManager's callbacks still do depend on the active project.
... Reimplement the ESC key handling in TrackPanel and time ruler on all
operating systems so that it does not rely on the focused window, but instead
uses the application-wide event filter.
This includes reversion of 9491605cfc
... except Audacity.h
This forces us to make each header contain all forward declarations or nested
headers that it requires, rather than depend on context.
... except Audacity.h; and in no others.
Do so even if Experimental.h gets multiply included, as in both the .h and
.cpp files.
This makes it easier to do a text scan to be sure there are no unintended quiet
changes of meaning because of omission of Experimental.h when the flag is
an enabled one.
Also move inclusions of Experimental.h earlier.
Also don't require Experimental.h to be preceded by Audacity.h to define
EXPERIMENTAL_MIDI_OUT correctly.
... addressing unfinished business mentioned in comment of commit b7e1cc0.
This eliminates a duplicate definition of track panel area subdivision, which
might grow inconsistent.
Now that subdivision is defined only by the tree of TrackPanelNodes built by
TrackPanel::Root() -- EXCEPT in the drawing code, which is still quite a lot
of other code needing its own difficult refactoring.
Problem:
1. Set no access to microphone in Privacy category of Settings app.
2. Try to record in a new track. (not append to an existing track.)
3. Audacity crashes.
Cause of crash:
TrackPanel::OnTrackListResizing is called with a track after a call to
TrackList::ClearPendingTracks, which has removed its owner.
TrackPanel::OnTrackListResizing ends up calling TrackPanel::UpdateTrackVRuler,
and this function calls TrackList::Channels(t)), which assumes the track has an owner.
Crash.
Fix: in TrackPanel::OnTrackListResizing, check that the track has an owner.
... keep the name, but change the value to be what it really says:
the proper width of the track control panel, agreeing with the hit-test
area, NOT including the left margin
And change places where the constant was used, adding the margin back again.
... not insets.
This makes them agree with the horizontal extents of the hit-test areas of
event handling code.
Some routines may draw outside of the box passed in to them, as when drawing
the border around a track.
In some of the routines, fewer pixels are painted than before, but these are
always either cleared already when painting left and right margins, or are
overpainted later, as with the right endpoints of sash borders overpainted by
the border around the track.
