com.tensegrity.graph.view
Class VisualPortAssignmentPredicate.TopToBottomPredicate

java.lang.Object
  com.tensegrity.graph.view.VisualPortAssignmentPredicate
      com.tensegrity.graph.view.VisualPortAssignmentPredicate.TopToBottomPredicate

Enclosing class:

VisualPortAssignmentPredicate

public static final class VisualPortAssignmentPredicate.TopToBottomPredicate

extends VisualPortAssignmentPredicate

This class is a simple implementation of the visualport assignment predicate, that assigns top-to-bottom ports (based on source/target nodes of an edge).

Nested Class Summary

Nested classes inherited from class com.tensegrity.graph.view.VisualPortAssignmentPredicate

VisualPortAssignmentPredicate.AnglePredicate, VisualPortAssignmentPredicate.BottomToTopPredicate, VisualPortAssignmentPredicate.CenterBothPredicate, VisualPortAssignmentPredicate.ConstrainedDenotationNamePredicate, VisualPortAssignmentPredicate.ConstrainedDirectionPredicate, VisualPortAssignmentPredicate.ConstrainedShortestDistancePredicate, VisualPortAssignmentPredicate.DenotationNamePredicate, VisualPortAssignmentPredicate.DirectionPredicate, VisualPortAssignmentPredicate.IdPredicate, VisualPortAssignmentPredicate.LeftToRightPredicate, VisualPortAssignmentPredicate.RestrictedDirectionPredicate, VisualPortAssignmentPredicate.RightToLeftPredicate, VisualPortAssignmentPredicate.ShortestDistancePredicate, VisualPortAssignmentPredicate.SubgraphDeepestNodeDenotationNamePredicate, VisualPortAssignmentPredicate.SubgraphDeepestNodeShortestDistancePredicate, VisualPortAssignmentPredicate.SubgraphInnerNodeDenotationNamePredicate, VisualPortAssignmentPredicate.TopToBottomPredicate

Constructor Summary

VisualPortAssignmentPredicate.TopToBottomPredicate()
Constructs a new TopToBottomPredicate.

VisualPortAssignmentPredicate.TopToBottomPredicate(VisualNode pointsTo)
Constructs a new TopToBottomPredicate.

Method Summary

VisualPort

apply(VisualGraph visualgraph, VisualEdge visualedge, VisualNode visualnode, VisualPort visualport, boolean isSource) This is the predicate method an implementer of this specification must provide.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VisualPortAssignmentPredicate.TopToBottomPredicate

public VisualPortAssignmentPredicate.TopToBottomPredicate()

Constructs a new TopToBottomPredicate.

VisualPortAssignmentPredicate.TopToBottomPredicate

public VisualPortAssignmentPredicate.TopToBottomPredicate(VisualNode pointsTo)

Constructs a new TopToBottomPredicate.

Parameters:

pointsTo - additional constraint that determines the VisualNode that the computed port must point to.

Method Detail

apply

public VisualPort apply(VisualGraph visualgraph,
                        VisualEdge visualedge,
                        VisualNode visualnode,
                        VisualPort visualport,
                        boolean isSource)

Description copied from class: VisualPortAssignmentPredicate

This is the predicate method an implementer of this specification must provide. Information about the current processed edge/port (node), in other words a connection, is supplied to the method by the following arguments. In other words, this method receives a single connection of an edge to a port as its input. It then may process this connection and adjust it by returning the new desired port. The new port must be assigned to the same node as the original port. An assignment of the connection to another node is not allowed in the context of a port reassignment. You may return null if you don't want to reassign the connection to another port. Otherwise return a new port on the same node. This is the major invariant you must obey when you implement your own predicates. The new port is only valid if it is in the same VisualNode as the old port. Another invariant affects the incoming arguments of the method. The incoming port VisualPort must always be a port that is associated with the incoming VisualNode.

Specified by:

apply in class VisualPortAssignmentPredicate

Parameters:

visualgraph - the VisualGraph the connection is in.

visualedge - the VisualEdge that is previously connected.

visualnode - the VisualNode that is previously connected.

visualport - the VisualPort that is previously connected.

isSource - false if the connection is a target end, true if the connection is a source end.