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/*
* TouchGraph LLC. Apache-Style Software License
*
*
* Copyright (c) 2001-2002 Alexander Shapiro. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by
* TouchGraph LLC (http://www.touchgraph.com/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "TouchGraph" or "TouchGraph LLC" must not be used to endorse
* or promote products derived from this software without prior written
* permission. For written permission, please contact
* alex@touchgraph.com
*
* 5. Products derived from this software may not be called "TouchGraph",
* nor may "TouchGraph" appear in their name, without prior written
* permission of alex@touchgraph.com.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL TOUCHGRAPH OR ITS CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
*/
package com.touchgraph.graphlayout.graphelements;
import com.touchgraph.graphlayout.Node;
import com.touchgraph.graphlayout.Edge;
import com.touchgraph.graphlayout.TGException;
import java.util.Vector;
/** VisibleLocality: Extends Locality to spefically handle the
* Nodes + Edges that are visible on screen. The visible attribute
* of the nodes + edges is set to true when they appear on screen, and
* false when they are removed from screen.
*
* Locality is used in conjunction with LocalityUtils, which handle
* locality shift animations.
*
*
* @author Alexander Shapiro
* @version 1.22-jre1.1 $Id: VisibleLocality.java,v 1.1 2002/09/19 15:58:32 ldornbusch Exp $
*/
public class VisibleLocality extends Locality {
public VisibleLocality(GraphEltSet ges) {
super(ges);
}
public synchronized void addNode( Node node ) throws TGException {
super.addNode(node);
node.setVisible(true);
}
public void addEdge( Edge edge ) {
if(!contains(edge)) {
super.addEdge(edge);
edge.from.visibleEdgeCnt++;
edge.to.visibleEdgeCnt++;
}
}
public boolean removeEdge( Edge edge ) {
boolean removed = super.removeEdge(edge);
if (removed) {
edge.setVisible(false);
edge.from.visibleEdgeCnt--;
edge.to.visibleEdgeCnt--;
}
return removed;
}
public boolean removeNode( Node node ) {
boolean removed = super.removeNode(node);
if (removed) {
node.setVisible(false);
}
return removed;
}
public synchronized void removeAll() {
for (int i = 0 ; i < nodeCount(); i++) {
nodeAt(i).setVisible(false);
}
for (int i = 0 ; i < edgeCount(); i++) {
edgeAt(i).setVisible(false);
}
super.removeAll();
}
public void updateLocalityFromVisibility() throws TGException {
//for (int i = 0 ; i < completeEltSet.nodeCount(); i++) {
// Node n = nodeAt(i);
TGForEachNode fen = new TGForEachNode() {
public void forEachNode( Node node ) {
try {
if (node.isVisible() && !contains(node))
addNode(node);
else if (!node.isVisible() && contains(node))
removeNode(node);
}
catch (TGException ex) { ex.printStackTrace(); }
}
};
completeEltSet.forAllNodes(fen);
//for (int i = 0 ; i < edgeCount(); i++) {
// Edge e = edgeAt(i);
TGForEachEdge fee = new TGForEachEdge() {
public void forEachEdge( Edge edge ) {
if (edge.isVisible() && !contains(edge))
addEdge(edge);
else if (!edge.isVisible() && contains(edge))
removeEdge(edge);
}
};
completeEltSet.forAllEdges(fee);
}
} // end com.touchgraph.graphlayout.graphelements.VisibleLocality
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