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.] * * ------------------ * BarChartDemo3.java * ------------------ * (C) Copyright 2002-2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: BarChartDemo3.java,v 1.15 2004/05/10 16:45:24 mungady Exp $ * * Changes * ------- * 22-Aug-2002 : Version 1 (DG); * 28-Jul-2003 : Updated custom renderer for API changes in 0.9.10 (DG); * 11-Nov-2003 : Renamed BarChartDemo3.java (DG); * */ //used BarChartDemo3.java as a template package cgpanalyser.gui; import cgpanalyser.truthtable.GateFuctionsAll; import java.awt.Paint; import javax.swing.JFrame; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.CategoryLabelPositions; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.chart.renderer.category.CategoryItemRenderer; import org.jfree.chart.renderer.category.StandardBarPainter; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.RefineryUtilities; /** * */ public class EvoInfoChart extends JFrame { /** * Creates a new demo. * * @param title the frame title. */ public EvoInfoChart(final String title, long[] gateFuncsCounts, GateFuctionsAll gateFuncsAll) { super(title); final CategoryDataset dataset = createDataset(gateFuncsCounts, gateFuncsAll); final JFreeChart chart = createChart(dataset, gateFuncsCounts, gateFuncsAll); final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new java.awt.Dimension(700, 400)); chartPanel.setPopupMenu(null); chartPanel.setRangeZoomable(false); chartPanel.setDomainZoomable(false); setContentPane(chartPanel); pack(); RefineryUtilities.centerFrameOnScreen(this); setDefaultCloseOperation(DISPOSE_ON_CLOSE); setVisible(true); } private CategoryDataset createDataset(long[] gateFuncsCounts, GateFuctionsAll gateFuncsAll) { final DefaultCategoryDataset dataset = new DefaultCategoryDataset(); final String series1 = ""; byte index = 0; for (long gateFuncCount : gateFuncsCounts) { //if (gateFuncCount != 0) { //System.out.println(gateFuncCount); dataset.addValue(gateFuncCount, series1, "F" + index + " (" + gateFuncsAll.getSymbolIfAvailable(index) + ")"); //} index++; } return dataset; } private JFreeChart createChart(final CategoryDataset dataset, long[] gateFuncsCounts, GateFuctionsAll gateFuncsAll) { final JFreeChart chart = ChartFactory.createBarChart(null, "Function", "Usage", dataset, PlotOrientation.VERTICAL, false, true, false); //match colors of bars to colors in function file (or black if not specified) Paint[] colors = new Paint[gateFuncsCounts.length]; for (byte i = 0; i < colors.length; i++) { colors[i] = gateFuncsAll.getColorIfAvailable(i); } final CategoryItemRenderer renderer = new CustomRenderer(colors); // get a reference to the plot for further customisation... final CategoryPlot plot = chart.getCategoryPlot(); plot.setRenderer(renderer); ((BarRenderer) plot.getRenderer()).setBarPainter(new StandardBarPainter()); //no gradient CategoryAxis domainAxis = plot.getDomainAxis(); domainAxis.setCategoryLabelPositions(CategoryLabelPositions.DOWN_45); //CategoryAxis axis = plot.getDomainAxis(); //NumberAxis xAxis = (NumberAxis) plot.getDomainAxis(); //set x axis tick //xAxis.setVerticalTickLabels(true); //set x axis text rotation return chart; } /** * Starting point for the demonstration application. * * @param args ignored. */ /*public static void main(final String[] args) { final EvoInfoChart demo = new EvoInfoChart("Gate usage"); }*/ /** * A custom renderer that returns a different color for each item in a single series. */ class CustomRenderer extends BarRenderer { /** * The colors. */ private final Paint[] colors; /** * Creates a new renderer. * * @param colors the colors. */ public CustomRenderer(final Paint[] colors) { this.colors = colors; } /** * Returns the paint for an item. Overrides the default behaviour inherited from AbstractSeriesRenderer. * * @param row the series. * @param column the category. * * @return The item color. */ @Override public Paint getItemPaint(final int row, final int column) { return this.colors[column % this.colors.length]; } } }