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.] * * -------------------- * XYTickLabelDemo.java * -------------------- * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors. * * Original Author: Matthias Rose; * Contributor(s): -; * * $Id: XYTickLabelDemo.java,v 1.9 2004/04/27 14:53:09 mungady Exp $ * * Changes * ------- * 15-Jul-2002 : Version 1 (MR); * */ package org.jfree.chart.demo; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Font; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JCheckBox; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTextField; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.AxisLocation; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.SymbolicAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.StandardXYItemRenderer; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; import org.jfree.ui.Spacer; /** * An example which shows some bugs with tick labels in version 0.9.13 * * @author Matthias Rose */ public class XYTickLabelDemo extends ApplicationFrame implements ActionListener { /** The default font size. */ private static final int DEFAULT_FONT_SIZE = 13; // causes some overlapping /** The chart */ private JFreeChart chart; /** Tick labels vertical? */ private JCheckBox verticalTickLabelsCheckBox; /** Plot horizontal? */ private JCheckBox horizontalPlotCheckBox; /** SymbolicAxes? */ private JCheckBox symbolicAxesCheckBox; /** Tick labels font size entry field */ private JTextField fontSizeTextField; /** * A demonstration application showing some bugs with tick labels in version 0.9.13 * * @param title the frame title. */ public XYTickLabelDemo(final String title) { super(title); this.chart = createChart(); final ChartPanel chartPanel = new ChartPanel(this.chart); chartPanel.setPreferredSize(new java.awt.Dimension(600, 270)); final JPanel mainPanel = new JPanel(new BorderLayout()); setContentPane(mainPanel); mainPanel.add(chartPanel); final JPanel optionsPanel = new JPanel(); mainPanel.add(optionsPanel, BorderLayout.SOUTH); this.symbolicAxesCheckBox = new JCheckBox("Symbolic axes"); this.symbolicAxesCheckBox.addActionListener(this); optionsPanel.add(this.symbolicAxesCheckBox); this.verticalTickLabelsCheckBox = new JCheckBox("Tick labels vertical"); this.verticalTickLabelsCheckBox.addActionListener(this); optionsPanel.add(this.verticalTickLabelsCheckBox); this.fontSizeTextField = new JTextField(3); this.fontSizeTextField.addActionListener(this); optionsPanel.add(new JLabel("Font size:")); optionsPanel.add(this.fontSizeTextField); final ValueAxis axis = this.chart.getXYPlot().getDomainAxis(); this.fontSizeTextField.setText(DEFAULT_FONT_SIZE + ""); final XYPlot plot = this.chart.getXYPlot(); Font ft = axis.getTickLabelFont(); ft = ft.deriveFont((float) DEFAULT_FONT_SIZE); plot.getDomainAxis().setTickLabelFont(ft); plot.getRangeAxis().setTickLabelFont(ft); plot.getDomainAxis(1).setTickLabelFont(ft); plot.getRangeAxis(1).setTickLabelFont(ft); this.horizontalPlotCheckBox = new JCheckBox("Plot horizontal"); this.horizontalPlotCheckBox.addActionListener(this); optionsPanel.add(this.horizontalPlotCheckBox); } /** * When a checkbox is changed ... * * @param event the event. */ public void actionPerformed(final ActionEvent event) { final ValueAxis[] axes = new ValueAxis[4]; final XYPlot plot = this.chart.getXYPlot(); axes[0] = plot.getDomainAxis(); axes[1] = plot.getRangeAxis(); axes[2] = plot.getDomainAxis(1); axes[3] = plot.getRangeAxis(1); final Object source = event.getSource(); if (source == this.symbolicAxesCheckBox) { final boolean val = this.symbolicAxesCheckBox.isSelected(); for (int i = 0; i < axes.length; i++) { ValueAxis axis = axes[i]; final String label = axis.getLabel(); final int maxTick = (int) axis.getUpperBound(); final String[] tickLabels = new String[maxTick]; final Font ft = axis.getTickLabelFont(); for (int itk = 0; itk < maxTick; itk++) { tickLabels[itk] = "Label " + itk; } axis = val ? new SymbolicAxis(label, tickLabels) : new NumberAxis(label); axis.setTickLabelFont(ft); axes[i] = axis; } plot.setDomainAxis(axes[0]); plot.setRangeAxis(axes[1]); plot.setDomainAxis(1, axes[2]); plot.setRangeAxis(1, axes[3]); } if (source == this.symbolicAxesCheckBox || source == this.verticalTickLabelsCheckBox) { final boolean val = this.verticalTickLabelsCheckBox.isSelected(); for (int i = 0; i < axes.length; i++) { axes[i].setVerticalTickLabels(val); } } else if (source == this.symbolicAxesCheckBox || source == this.horizontalPlotCheckBox) { final PlotOrientation val = this.horizontalPlotCheckBox.isSelected() ? PlotOrientation.HORIZONTAL : PlotOrientation.VERTICAL; this.chart.getXYPlot().setOrientation(val); } else if (source == this.symbolicAxesCheckBox || source == this.fontSizeTextField) { final String s = this.fontSizeTextField.getText(); if (s.length() > 0) { final float sz = Float.parseFloat(s); for (int i = 0; i < axes.length; i++) { final ValueAxis axis = axes[i]; Font ft = axis.getTickLabelFont(); ft = ft.deriveFont(sz); axis.setTickLabelFont(ft); } } } } /** * Creates the demo chart. * * @return The chart. */ private JFreeChart createChart() { // create some sample data final XYSeries series1 = new XYSeries("Something"); series1.add(0.0, 30.0); series1.add(1.0, 10.0); series1.add(2.0, 40.0); series1.add(3.0, 30.0); series1.add(4.0, 50.0); series1.add(5.0, 50.0); series1.add(6.0, 70.0); series1.add(7.0, 70.0); series1.add(8.0, 80.0); final XYSeriesCollection dataset1 = new XYSeriesCollection(); dataset1.addSeries(series1); final XYSeries series2 = new XYSeries("Something else"); series2.add(0.0, 5.0); series2.add(1.0, 4.0); series2.add(2.0, 1.0); series2.add(3.0, 5.0); series2.add(4.0, 0.0); final XYSeriesCollection dataset2 = new XYSeriesCollection(); dataset2.addSeries(series2); // create the chart final JFreeChart result = ChartFactory.createXYLineChart("Tick Label Demo", "Domain Axis 1", "Range Axis 1", dataset1, PlotOrientation.VERTICAL, false, true, false); result.setBackgroundPaint(Color.white); final XYPlot plot = result.getXYPlot(); plot.setOrientation(PlotOrientation.VERTICAL); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); // plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0)); final StandardXYItemRenderer renderer = (StandardXYItemRenderer) plot.getRenderer(); renderer.setPaint(Color.black); // DOMAIN AXIS 2 final NumberAxis xAxis2 = new NumberAxis("Domain Axis 2"); xAxis2.setAutoRangeIncludesZero(false); plot.setDomainAxis(1, xAxis2); // RANGE AXIS 2 final DateAxis yAxis1 = new DateAxis("Range Axis 1"); plot.setRangeAxis(yAxis1); final DateAxis yAxis2 = new DateAxis("Range Axis 2"); plot.setRangeAxis(1, yAxis2); plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_RIGHT); plot.setDataset(1, dataset2); plot.mapDatasetToDomainAxis(1, 1); plot.mapDatasetToRangeAxis(1, 1); return result; } /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(final String[] args) { final XYTickLabelDemo demo = new XYTickLabelDemo("Tick Label Demo"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }