on
open fun onPrepareAnnotationSelection(controller: AnnotationSelectionController, annotation: Annotation, annotationCreated: Boolean): Boolean
Called immediately before annotation is going to be selected.
Return
`true` when you want AnnotationSelectionController to proceed with the selection. Returning `false` will prevent annotation from being selected.
Parameters
controller
Selection controller that is performing the selection.
annotation
Annotation that is going to be selected.
annotation
`true` if the annotation is being created.