y.layout.tree
Class XCoordComparator

java.lang.Object
  y.layout.tree.XCoordComparator

All Implemented Interfaces:

java.util.Comparator, Comparators.PartialOrder

public class XCoordComparator
extends java.lang.Object
implements java.util.Comparator, Comparators.PartialOrder

This Comparator compares edges by examining the x-coordinates of the centers of their target nodes.

Constructor Summary

XCoordComparator()
Creates a new XCoordComparator instance.

Method Summary

int	compare(java.lang.Object edge1, java.lang.Object edge2) Compares two edges by the x-coordinates of the centers of their target nodes.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Constructor Detail

XCoordComparator

public XCoordComparator()

Creates a new XCoordComparator instance.

Method Detail

compare

public int compare(java.lang.Object edge1,
                   java.lang.Object edge2)

Compares two edges by the x-coordinates of the centers of their target nodes.

Specified by:

compare in interface java.util.Comparator

Parameters:

edge1 - the first edge

edge2 - the second edge

Returns:

a negative value if the first target node is left of the second target node, a positive value if it's the other way round and 0 if both target nodes are at the same x-coordinate