Handles mouse input to the buffer. The get-event-object method of the event argument will return the top-level view (usually a wx:media-canvas% object) which received the event. The event's x and y coordinates are in the view's co-ordinate system; use the administrator's get-dc method to obtain translation arguments.
Consider overriding on-local-event or on-default-event instead of this method.
Either passes this event on to a caret-owning snip or calls on-local-event .