handleLongPressStart method
Called when a long press gesture by a primary button has been recognized in behavior.
Implementation
@override
void handleLongPressStart(LongPressStartDetails details) {
if (parentBox == null || !enableSelectionZooming) {
return;
}
final Offset position = parentBox!.globalToLocal(details.globalPosition);
if (_zoomRectStartPosition != position) {
_zoomRectStartPosition = position;
}
}