onLinkLongPressStart method
Implementation
@override
void onLinkLongPressStart(String linkId, LongPressStartDetails details) {
canvasWriter.model.hideAllLinkJoints();
canvasWriter.model.showLinkJoints(linkId);
_segmentIndex = canvasReader.model
.determineLinkSegmentIndex(linkId, details.localPosition);
if (_segmentIndex != null) {
canvasWriter.model
.insertLinkMiddlePoint(linkId, details.localPosition, _segmentIndex!);
canvasWriter.model.updateLink(linkId);
}
}