Creates an instance of AnnounceSubtitleCommand.
The application context.
The text view model.
The audio service.
The text service for mode-aware formatting.
Protected ReadonlycontextProtected ReadonlytextProtected ReadonlyaudioProtected ReadonlytextProtectedrestoreRestores the scope to the correct parent after a label describe command. Returns to SUBPLOT when at figure level (came from FIGURE_LABEL), TRACE otherwise (came from TRACE_LABEL).
Executes the command to display the subtitle. Accesses subtitle from the figure level via Context, since subtitle is a figure-level property not available on trace state.
Command to describe the subtitle of the figure.