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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.interaction;
import com.touchgraph.graphlayout.*;
import com.touchgraph.graphlayout.graphelements.*;
import java.awt.event.*;
import java.awt.*;
//import javax.swing.*;
/** LocalityScroll.
*
* @author Alexander Shapiro
* @version 1.22-jre1.1 $Id: LocalityScroll.java,v 1.2 2002/09/23 18:45:48 ldornbusch Exp $
*/
public class LocalityScroll implements GraphListener {
private Scrollbar localitySB;
private TGPanel tgPanel;
public LocalityScroll(TGPanel tgp) {
tgPanel=tgp;
localitySB = new Scrollbar(Scrollbar.HORIZONTAL, 1, 1, 0, 7);
localitySB.setBlockIncrement(1);
localitySB.setUnitIncrement(1);
localitySB.addAdjustmentListener(new localityAdjustmentListener());
tgPanel.addGraphListener(this);
}
public Scrollbar getLocalitySB() {
return localitySB;
}
public int getLocalityRadius() {
int locVal = localitySB.getValue();
if(locVal>=6) return LocalityUtils.INFINITE_LOCALITY_RADIUS;
else return locVal;
}
public void setLocalityRadius(int radius) {
if (radius <= 0 )
localitySB.setValue(0);
else if (radius <= 5) //and > 0
localitySB.setValue(radius);
else // radius > 5
localitySB.setValue(6);
}
public void graphMoved() {} //From GraphListener interface
public void graphReset() { localitySB.setValue(1); } //From GraphListener interface
private class localityAdjustmentListener implements AdjustmentListener {
public void adjustmentValueChanged(AdjustmentEvent e) {
Node select = tgPanel.getSelect();
if (select!=null || getLocalityRadius() == LocalityUtils.INFINITE_LOCALITY_RADIUS)
try {
tgPanel.setLocale(select, getLocalityRadius());
}
catch (TGException ex) {
System.out.println("Error setting locale");
ex.printStackTrace();
}
}
}
} // end com.touchgraph.graphlayout.interaction.LocalityScroll
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