/*
* Trace2DReplacing, a list- based implementation of a ITrace2D.
* Copyright (c) 2004 - 2011 Achim Westermann, Achim.Westermann@gmx.de
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* If you modify or optimize the code in a useful way please let me know.
* Achim.Westermann@gmx.de
*/
package info.monitorenter.gui.chart.traces;
import info.monitorenter.gui.chart.ITracePoint2D;
/**
* Has the behavior of <code>Trace2DBijective</code> and additional
* features.<p>
*
* <ul>
* <li>All tracepoints that are added are stored unchanged in a LinkedList.
* </li>
* <li>All traceoints added whose x- values are not already contained are added
* to the end.</li>
* <li>If a tracepoint is inserted whose x - value already exists in the List,
* the old tracepoint with that value will be replaced by the new tracepoint.
* </li>
* </ul>
* <p>
*
* @see Trace2DBijective
*
* @author <a href='mailto:Achim.Westermann@gmx.de'>Achim Westermann </a>
*
* @version $Revision: 1.12 $
*/
public class Trace2DReplacing extends Trace2DSimple {
/** Generated <code>serialVersionUID</code>. */
private static final long serialVersionUID = 858570477289251003L;
/**
* Defcon.
*/
public Trace2DReplacing() {
// nop
}
/**
* In case p has an x- value already contained, the old tracepoint with that
* value will be replaced by the new one. Else the new tracepoint will be
* added to the end, not caring wether tracepoints with a higher x- value are
* contained.
* <p>
*
* @param p
* the point to add.
*
* @return true if the point wathe maximum amount of points that will be
* showns successfully added.
*/
@Override
public boolean addPointInternal(final ITracePoint2D p) {
boolean result = true;
int index = -1;
ITracePoint2D old;
index = this.m_points.indexOf(p);
if (index != -1) {
// already contained.
old = this.m_points.get(index);
// fires property changes with bound checks
old.setLocation(old.getX(), p.getY());
// we don't need further bound checks and property change events from
// calling
// addPoint method.
result = false;
} else {
this.m_points.add(p);
result = true;
}
return result;
}
}