Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2013, by Object Refinery Limited and Contributors. * * Project Info: http://www.jfree.org/jfreechart/index.html * * 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 Street, Fifth Floor, Boston, MA 02110-1301, * USA. * * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. * Other names may be trademarks of their respective owners.] * * ------------------------------- * StandardXYToolTipGenerator.java * ------------------------------- * (C) Copyright 2004-2008, by Object Refinery Limited. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * Changes * ------- * 12-May-2004 : Version 1 (DG); * ------------- JFREECHART 1.0.x --------------------------------------------- * 25-Jan-2007 : Added new constructor - see bug 1624067 (DG); * */ package com.ceabie; import org.jfree.chart.labels.AbstractXYItemLabelGenerator; import org.jfree.chart.labels.XYToolTipGenerator; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.time.ohlc.OHLCSeriesCollection; import org.jfree.data.xy.XYDataset; import org.jfree.util.PublicCloneable; import java.io.Serializable; import java.text.DateFormat; import java.text.MessageFormat; import java.text.NumberFormat; import java.text.SimpleDateFormat; import java.util.Date; public class CandlestickToolTipGenerator extends AbstractXYItemLabelGenerator implements XYToolTipGenerator, Cloneable, PublicCloneable, Serializable { private static final long serialVersionUID = -3564164459039540784L; private static final String DEFAULT_TOOL_TIP_FORMAT = "{0}: [{1}, {2}]-({3}, {4})"; private static final String DEFAULT_SINGLE_TOOL_TIP_FORMAT = "{0}: {1}"; public static CandlestickToolTipGenerator getSeriesInstance() { return new CandlestickToolTipGenerator(DEFAULT_TOOL_TIP_FORMAT, new SimpleDateFormat("yyyy-MM-dd"), NumberFormat.getInstance()); } public CandlestickToolTipGenerator(String formatString, DateFormat xFormat, NumberFormat yFormat) { super(formatString, xFormat, yFormat); } @Override public String generateToolTip(XYDataset dataset, int series, int item) { if (dataset instanceof OHLCSeriesCollection) { OHLCSeriesCollection d = (OHLCSeriesCollection) dataset; double x = dataset.getXValue(series, item); DateFormat xDateFormat = getXDateFormat(); if (xDateFormat != null) { return MessageFormat.format(DEFAULT_TOOL_TIP_FORMAT, xDateFormat.format(new Date((long) x)), d.getOpenValue(series, item), d.getCloseValue(series, item), d.getHighValue(series, item), d.getLowValue(series, item)); } } else if (dataset instanceof TimeSeriesCollection) { TimeSeriesCollection d = (TimeSeriesCollection) dataset; double x = dataset.getXValue(series, item); DateFormat xDateFormat = getXDateFormat(); if (xDateFormat != null) { return MessageFormat.format(DEFAULT_SINGLE_TOOL_TIP_FORMAT, xDateFormat.format(new Date((long) x)), d.getYValue(series, item)); } } return generateLabelString(dataset, series, item); } @Override public boolean equals(Object obj) { if (obj == this) { return true; } if (!(obj instanceof CandlestickToolTipGenerator)) { return false; } return super.equals(obj); } @Override public Object clone() throws CloneNotSupportedException { return super.clone(); } }