... TrackPanelAx now sends an event to the project when track focus changes,
and TrackPanel listens for it.
TrackPanel also initializes TrackPanelAx with a callback to do the details of
rectangle calculation.
... and updating of them is accomplished privately in implementation files,
reducing intrusions into TrackPanel and ProjectWindow
This removes #include-s from TrackInfo.cpp, leaving dependency cycles better
than previously
... and eliminate some unnecessary calls to SubstitutePendingChangedTrack,
because the track and the substitute store Y and height in their shared
TrackView object.
Also make GetMinimizedHeight() virtual to avoid inclusion of TrackPanel.h in
TrackView.cpp.
... And Track no longer inherits TrackPanelCell, so be careful to rewrite
some dynamic_casts too to check instead for TrackView. Those casts won't fail
to recompile if not rewritten.
... in anticipation of making views to tracks many-to-one, but then the rulers
should be one-to-one with the views. So go through the view to get the ruler.
The ruler is really a left-hand extension for each view.
... and use std::enable_shared_from_this
Temporarily putting TrackControls.cpp back into the big s.c.c, now 59 files
Future rewriting might even eliminate all mention of those classes in
the definition of the Track classes.
... As when recording starts or stops, or the Tools button has changed, or
scrolling has changed the results of hit-test.
This reduces TrackPanel's intrusions into other code, including ProjectHistory.
Also for AdornedRulerPanel, which shares the base class CellularPanel
... New files, but (almost) empty; don't use the global variable gAudioIO,
but use one of two accessor function names (which are the same function for
now).
AudioIOBase will have fewer dependencies than AudioIO -- in particular, no
dependency on tracks.
It won't include StartStream. It will contain functions to query the
present state of streams, and device capabilities.
... that is, a factory function, open, close, import, undo/redo/rollback.
Also the callbacks from AudioIO, which need to invoke undo history push when
recording stops.
It is meant as a high-level class using several of the other things attached
to the project, while AudacityProject will be a low level class acting mostly
as just the container of the attached structures.
... as a preparation for splitting up class AudacityProject.
Use ProjectWindow as an alias for AudacityProject, and fetch it from the
project with a static member function, where certain of its services are used;
pretending they are not the same class.
Use global accessor functions to get wxFrame from the project where only
wxFrame's member functions are needed, so there will be less dependency on
ProjectWindow when it becomes a distinct class.
... Rename it as SetStatus; make it part of AudacityProject not
TrackPanelListener; and use a roundabout event signalling to cause the timer
restart.
Because SetStatus will be one of very few things left in AudacityProject, but
the timer handling will be part of another class decoupled from it.
And TrackPanelListener won't really be needed: TrackPanel will not need to
pretend it doesn't know what an AudacityProject is.
... 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.
