Ejemplo n.º 1
0
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;
}
Ejemplo n.º 2
0
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);
}