Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2004, 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., 59 Temple Place, Suite 330, * Boston, MA 02111-1307, USA. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * ---------------------- * InternalFrameDemo.java * ---------------------- * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited). * Contributor(s): -; * * $Id: InternalFrameDemo.java,v 1.9 2004/04/30 08:10:12 mungady Exp $ * * Changes * ------- * 29-Jul-2003 : Version 1 (DG); * */ package org.jfree.chart.demo; import java.awt.Dimension; import javax.swing.JDesktopPane; import javax.swing.JInternalFrame; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.data.time.Minute; import org.jfree.data.time.RegularTimePeriod; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.xy.XYDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * A simple internal frame demo. * */ public class InternalFrameDemo extends ApplicationFrame { /** * Creates a new instance of the demo. * * @param title the title. */ public InternalFrameDemo(final String title) { super(title); final JDesktopPane desktopPane = new JDesktopPane(); desktopPane.setPreferredSize(new Dimension(600, 400)); final JInternalFrame frame1 = createFrame1(); desktopPane.add(frame1); frame1.pack(); frame1.setVisible(true); final JInternalFrame frame2 = createFrame2(); desktopPane.add(frame2); frame2.pack(); frame2.setLocation(100, 200); frame2.setVisible(true); getContentPane().add(desktopPane); } /** * Creates an internal frame. * * @return An internal frame. */ private JInternalFrame createFrame1() { final DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(34.0, "Series 1", "Category 1"); dataset.addValue(23.0, "Series 1", "Category 2"); dataset.addValue(54.0, "Series 1", "Category 3"); final JFreeChart chart = ChartFactory.createBarChart("Bar Chart", "Category", "Series", dataset, PlotOrientation.VERTICAL, true, true, false); final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new Dimension(200, 100)); final JInternalFrame frame = new JInternalFrame("Frame 1", true); frame.getContentPane().add(chartPanel); return frame; } /** * Creates an internal frame. * * @return An internal frame. */ private JInternalFrame createFrame2() { final XYDataset dataset1 = createDataset("Series 1", 100.0, new Minute(), 200); final JFreeChart chart = ChartFactory.createTimeSeriesChart("Time Series Chart", "Time of Day", "Value", dataset1, true, true, false); final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new Dimension(200, 100)); final JInternalFrame frame = new JInternalFrame("Frame 2", true); frame.getContentPane().add(chartPanel); return frame; } /** * Creates a sample dataset. * * @param name the dataset name. * @param base the starting value. * @param start the starting period. * @param count the number of values to generate. * * @return The dataset. */ private XYDataset createDataset(final String name, final double base, final RegularTimePeriod start, final int count) { final TimeSeries series = new TimeSeries(name, start.getClass()); RegularTimePeriod period = start; double value = base; for (int i = 0; i < count; i++) { series.add(period, value); period = period.next(); value = value * (1 + (Math.random() - 0.495) / 10.0); } final TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(series); return dataset; } // **************************************************************************** // * JFREECHART DEVELOPER GUIDE * // * The JFreeChart Developer Guide, written by David Gilbert, is available * // * to purchase from Object Refinery Limited: * // * * // * http://www.object-refinery.com/jfreechart/guide.html * // * * // * Sales are used to provide funding for the JFreeChart project - please * // * support us so that we can continue developing free software. * // **************************************************************************** /** * The starting point for the demo. * * @param args ignored. */ public static void main(final String[] args) { final InternalFrameDemo demo = new InternalFrameDemo("Internal Frame Demo"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }