QPointF RelationItem::calcEndPoint(const Uid &end, const QPointF &otherEndPos, int nearestIntermediatePointIndex)
{
QGraphicsItem *endItem = m_diagramSceneModel->graphicsItem(end);
QMT_CHECK(endItem);
IIntersectionable *endObjectItem = dynamic_cast<IIntersectionable *>(endItem);
QPointF endPos;
if (endObjectItem) {
DObject *endObject = m_diagramSceneModel->diagramController()->findElement<DObject>(end, m_diagramSceneModel->diagram());
QMT_CHECK(endObject);
bool preferAxis = false;
QPointF otherPos;
if (nearestIntermediatePointIndex >= 0 && nearestIntermediatePointIndex < m_relation->intermediatePoints().size()) {
otherPos = m_relation->intermediatePoints().at(nearestIntermediatePointIndex).pos();
preferAxis = true;
} else {
otherPos = otherEndPos;
}
bool ok = false;
QLineF directLine(endObject->pos(), otherPos);
if (preferAxis) {
{
QPointF axisDirection = GeometryUtilities::calcPrimaryAxisDirection(directLine);
QLineF axis(otherPos, otherPos + axisDirection);
QPointF projection = GeometryUtilities::calcProjection(axis, endObject->pos());
QLineF projectedLine(projection, otherPos);
ok = endObjectItem->intersectShapeWithLine(projectedLine, &endPos);
}
if (!ok) {
QPointF axisDirection = GeometryUtilities::calcSecondaryAxisDirection(directLine);
QLineF axis(otherPos, otherPos + axisDirection);
QPointF projection = GeometryUtilities::calcProjection(axis, endObject->pos());
QLineF projectedLine(projection, otherPos);
ok = endObjectItem->intersectShapeWithLine(projectedLine, &endPos);
}
}
if (!ok) {
ok = endObjectItem->intersectShapeWithLine(directLine, &endPos);
}
if (!ok) {
endPos = endItem->pos();
}
} else {
endPos = endItem->pos();
}
return endPos;
}
QPointF RelationItem::calcEndPoint(const Uid &end, const Uid &otherEnd, int nearestIntermediatePointIndex)
{
QPointF otherEndPos;
if (nearestIntermediatePointIndex >= 0 && nearestIntermediatePointIndex < m_relation->intermediatePoints().size()) {
// otherEndPos will not be used
} else {
DObject *endOtherObject = m_diagramSceneModel->diagramController()->findElement<DObject>(otherEnd, m_diagramSceneModel->diagram());
QMT_CHECK(endOtherObject);
otherEndPos = endOtherObject->pos();
}
return calcEndPoint(end, otherEndPos, nearestIntermediatePointIndex);
}