Examples with SelfLoopEdge org.eclipse.elk.alg.layered.intermediate.loops.SelfLoopEdge used on opensource projects

Example 1 with SelfLoopEdge

use of org.eclipse.elk.alg.layered.intermediate.loops.SelfLoopEdge in project elk by eclipse.

the class OrthogonalSelfLoopRouter method routeSelfLoops.

@Override
public void routeSelfLoops(final SelfLoopHolder slHolder) {
    LNode lNode = slHolder.getLNode();
    KVector nodeSize = lNode.getSize();
    LMargin nodeMargins = lNode.getMargin();
    double edgeEdgeDistance = LGraphUtil.getIndividualOrInherited(lNode, LayeredOptions.SPACING_EDGE_EDGE);
    double edgeLabelDistance = LGraphUtil.getIndividualOrInherited(lNode, LayeredOptions.SPACING_EDGE_LABEL);
    double nodeSLDistance = LGraphUtil.getIndividualOrInherited(lNode, LayeredOptions.SPACING_NODE_SELF_LOOP);
    LMargin newNodeMargins = new LMargin();
    newNodeMargins.set(nodeMargins);
    // Compute how far away from the node each routing slot on each side is (this takes labels into account)
    double[][] routingSlotPositions = computeRoutingSlotPositions(slHolder, edgeEdgeDistance, edgeLabelDistance, nodeSLDistance);
    for (SelfHyperLoop slLoop : slHolder.getSLHyperLoops()) {
        for (SelfLoopEdge slEdge : slLoop.getSLEdges()) {
            LEdge lEdge = slEdge.getLEdge();
            EdgeRoutingDirection routingDirection = computeEdgeRoutingDirection(slEdge);
            // Compute orthogonal bend points and give subclasses a chance to modify them to suit their particular
            // routing style. The default implementation in this class won't change the bend points.
            KVectorChain bendPoints = computeOrthogonalBendPoints(slEdge, routingDirection, routingSlotPositions);
            bendPoints = modifyBendPoints(slEdge, routingDirection, bendPoints);
            lEdge.getBendPoints().clear();
            lEdge.getBendPoints().addAll(bendPoints);
            bendPoints.stream().forEach(bp -> updateNewNodeMargins(nodeSize, newNodeMargins, bp));
        }
        // Place the self loop's labels (the edges were routed such that there is enough space available)
        SelfHyperLoopLabels slLabels = slLoop.getSLLabels();
        if (slLabels != null) {
            placeLabels(slLoop, slLabels, routingSlotPositions, edgeLabelDistance);
            updateNewNodeMargins(nodeSize, newNodeMargins, slLabels);
        }
    }
    // Update the node's margins to include the space required for self loops
    nodeMargins.set(newNodeMargins);
}