A singleton for managing [TextServer] implementations.
[TextServerManager] is the API backend for loading, enumerating, and switching [TextServer]s. [b]Note:[/b] Switching text server at runtime is possible, but will invalidate all fonts and text buffers. Make sure to unload all controls, fonts, and themes before doing so.
Registers a [TextServer] interface.
Finds an interface by its [param name].
Returns the interface registered at a given index.
Returns the number of interfaces currently registered.
Returns a list of available interfaces, with the index and name of each interface.
Returns the primary [TextServer] interface currently in use.
Removes an interface. All fonts and shaped text caches should be freed before removing an interface.
Sets the primary [TextServer] interface.
Emitted when a new interface has been added.
Emitted when an interface is removed.