Java tutorial
/* * Copyright (C) 2016 likhachev * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ package com.ivli.roim.controls; import java.awt.BasicStroke; import java.awt.Color; import org.jfree.chart.plot.ValueMarker; import org.jfree.data.general.SeriesChangeEvent; import org.jfree.data.general.SeriesChangeListener; import org.jfree.data.xy.XYSeries; import org.jfree.ui.RectangleAnchor; import org.jfree.ui.RectangleInsets; /** * * @author likhachev */ class DomainMarker extends ValueMarker implements SeriesChangeListener { private final XYSeries iSeries; private ValueMarker iLink; private static final String LABEL_FORMAT = "%.2f"; //NOI18N public DomainMarker(XYSeries aSet) { this((aSet.getMaxX() - aSet.getMinX()) / 2., aSet); } public DomainMarker(double aV, XYSeries aS) { super(aV); iSeries = aS; iSeries.addChangeListener(this); setLabel(String.format(LABEL_FORMAT, aV)); setLabelAnchor(RectangleAnchor.CENTER); setLabelOffset(RectangleInsets.ZERO_INSETS); setAlpha(1.0f); setPaint(Color.BLACK); setStroke(new BasicStroke(1.0f)); setOutlinePaint(Color.CYAN); setOutlineStroke(new BasicStroke(.0f)); } public XYSeries getSeries() { return iSeries; } public void setLinkedMarker(ValueMarker aM) { iLink = aM; iLink.setValue(XYSeriesUtilities.getNearestY(iSeries, getValue())); iLink.setLabelAnchor(RectangleAnchor.BOTTOM); iLink.setLabelOffset(RectangleInsets.ZERO_INSETS); } public ValueMarker getLinkedMarker() { return iLink; } @Override public void seriesChanged(SeriesChangeEvent sce) { setValue(getValue()); } @Override public void setValue(double aVal) { super.setValue(aVal); if (null != iSeries) { final Double newY = XYSeriesUtilities.getNearestY(iSeries, aVal); if (null != iLink) { iLink.setValue(newY); iLink.setLabel(String.format(LABEL_FORMAT, newY)); } setLabel(String.format(LABEL_FORMAT, aVal)); } else { setLabel(String.format(LABEL_FORMAT, aVal)); //NOI18N } } private static final org.apache.logging.log4j.Logger LOG = org.apache.logging.log4j.LogManager.getLogger(); }