Java tutorial
package com.waitwha.nessus.trendanalyzer.gui; import java.awt.BorderLayout; import java.awt.Color; import java.text.SimpleDateFormat; import javax.swing.JPanel; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.data.xy.XYDataset; import org.jfree.ui.RectangleInsets; /** * <b>Nessus Trend Analyzer (Desktop)</b>: TimeChartPanel<br/> * <small>Copyright (c)2013 Mike Duncan <<a href="mailto:mike.duncan@waitwha.com">mike.duncan@waitwha.com</a>></small><p /> * * <pre> * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * </pre> * * Reusable timechart panel. * * @author Mike Duncan <mike.duncan@waitwha.com> * @version $Id$ * @package com.waitwha.nessus.trendanalyzer.gui */ public class TimeChartPanel extends JPanel { private static final long serialVersionUID = 1L; /** * Constructor * * @param title String title of the chart. * @param xaxisLabel String x-axis label of the chart. * @param yaxisLabel String y-axis label of the chart (time). * @param dataset XYDataset to use within the chart. */ public TimeChartPanel(String title, String xaxisLabel, String yaxisLabel, XYDataset dataset) { super(new BorderLayout()); JFreeChart chart = ChartFactory.createTimeSeriesChart(title, xaxisLabel, yaxisLabel, dataset, true, // create legend? true, // generate tooltips? false // generate URLs? ); chart.setBackgroundPaint(Color.white); XYPlot plot = (XYPlot) chart.getPlot(); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0)); plot.setDomainCrosshairVisible(true); plot.setRangeCrosshairVisible(true); XYItemRenderer r = plot.getRenderer(); if (r instanceof XYLineAndShapeRenderer) { XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) r; renderer.setBaseShapesVisible(true); renderer.setBaseShapesFilled(true); renderer.setDrawSeriesLineAsPath(true); } DateAxis axis = (DateAxis) plot.getDomainAxis(); axis.setDateFormatOverride(new SimpleDateFormat("yyyy-MM-dd HH:mm")); ChartPanel panel = new ChartPanel(chart); panel.setMouseWheelEnabled(true); this.add(panel, BorderLayout.CENTER); this.validate(); } }