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/*******************************************************************************
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* Copyright (c) 2003, 2010 IBM Corporation and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package org.eclipse.draw2d.graph;
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import org.eclipse.draw2d.geometry.Insets;
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/**
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* @deprecated virtual nodes of an edge should be cast to Node.
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* @author Randy Hudson
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* @since 2.1.2
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*/
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public class VirtualNode extends Node {
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/**
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* The next node.
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*/
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public Node next;
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/**
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* The previous node.
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*/
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public Node prev;
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/**
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* Constructs a virtual node.
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*
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* @deprecated This class is for internal use only.
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* @param e
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* the edge
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* @param i
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* the row
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*/
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public VirtualNode(Edge e, int i) {
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super(e);
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incoming.add(e);
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outgoing.add(e);
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width = e.width;
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height = 0;
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rank = i;
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setPadding(new Insets(0, e.padding, 0, e.padding));
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}
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/**
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* Constructor.
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*
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* @param o
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* object
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* @param parent
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* subgraph
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*/
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public VirtualNode(Object o, Subgraph parent) {
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super(o, parent);
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}
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/**
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* Returns the index of {@link #prev}.
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*
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* @return median
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*/
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public double medianIncoming() {
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return prev.index;
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}
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/**
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* Returns the index of {@link #next}.
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*
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* @return outgoing
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*/
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public double medianOutgoing() {
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return next.index;
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}
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/**
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* For internal use only. Returns the original edge weight multiplied by the
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* omega value for the this node and the node on the previous rank.
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*
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* @return the weighted weight, or omega
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*/
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public int omega() {
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Edge e = (Edge) data;
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if (e.source.rank + 1 < rank && rank < e.target.rank)
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return 8 * e.weight;
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return 2 * e.weight;
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}
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/**
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* @see java.lang.Object#toString()
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*/
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public String toString() {
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if (data instanceof Edge)
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return "VN[" + (((Edge) data).vNodes.indexOf(this) + 1) //$NON-NLS-1$
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+ "](" + data + ")"; //$NON-NLS-1$ //$NON-NLS-2$
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return super.toString();
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}
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}
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