org.jfree.expdemo.SelectionDemo2.java Source code

Java tutorial

Introduction

Here is the source code for org.jfree.expdemo.SelectionDemo2.java

Source

/* -------------------
 * SelectionDemo2.java
 * -------------------
 * (C) Copyright 2009, by Object Refinery Limited.
 *
 */

package org.jfree.expdemo;

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.util.Random;

import javax.swing.BorderFactory;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTable;
import javax.swing.border.EmptyBorder;
import javax.swing.border.TitledBorder;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumnModel;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.panel.selectionhandler.CircularRegionSelectionHandler;
import org.jfree.chart.panel.selectionhandler.EntitySelectionManager;
import org.jfree.chart.panel.selectionhandler.MouseClickSelectionHandler;
import org.jfree.chart.panel.selectionhandler.RegionSelectionHandler;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.rendererextension.IRSUtilities;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.data.datasetextension.DatasetIterator;
import org.jfree.data.datasetextension.DatasetSelectionExtension;
import org.jfree.data.datasetextension.impl.DatasetExtensionManager;
import org.jfree.data.datasetextension.impl.XYCursor;
import org.jfree.data.datasetextension.impl.XYDatasetSelectionExtension;
import org.jfree.data.event.SelectionChangeEvent;
import org.jfree.data.event.SelectionChangeListener;
import org.jfree.data.general.Dataset;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.NumberCellRenderer;
import org.jfree.ui.RefineryUtilities;

/**
 * A demo scatter plot.
 */
public class SelectionDemo2 extends ApplicationFrame implements SelectionChangeListener {

    private JTable table;

    private DefaultTableModel model;

    private XYSeriesCollection dataset;

    /**
     * A demonstration application showing a scatter plot.
     *
     * @param title  the frame title.
     */
    public SelectionDemo2(String title) {
        super(title);
        ChartPanel chartPanel = (ChartPanel) createDemoPanel();
        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));

        JFreeChart chart = chartPanel.getChart();
        XYPlot plot = (XYPlot) chart.getPlot();
        this.dataset = (XYSeriesCollection) plot.getDataset();
        JSplitPane split = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);
        split.add(chartPanel);

        this.model = new DefaultTableModel(new String[] { "Series:", "Item:", "X:", "Y:" }, 0);
        this.table = new JTable(this.model);
        TableColumnModel tcm = this.table.getColumnModel();
        tcm.getColumn(2).setCellRenderer(new NumberCellRenderer());
        tcm.getColumn(3).setCellRenderer(new NumberCellRenderer());
        JPanel p = new JPanel(new BorderLayout());
        JScrollPane scroller = new JScrollPane(this.table);
        p.add(scroller);
        p.setBorder(BorderFactory.createCompoundBorder(new TitledBorder("Selected Items: "),
                new EmptyBorder(4, 4, 4, 4)));
        split.add(p);
        setContentPane(split);
    }

    /**
     * The selection changed, so we change the table model
     * 
     * @param event
     */
    public void selectionChanged(SelectionChangeEvent event) {
        while (this.model.getRowCount() > 0) {
            this.model.removeRow(0);
        }

        XYDatasetSelectionExtension ext = (XYDatasetSelectionExtension) event.getSelectionExtension();
        DatasetIterator iter = ext.getSelectionIterator(true);

        while (iter.hasNext()) {
            XYCursor dc = (XYCursor) iter.nextCursor();

            Comparable seriesKey = this.dataset.getSeriesKey(dc.series);
            Number x = this.dataset.getX(dc.series, dc.item);
            Number y = this.dataset.getX(dc.series, dc.item);

            this.model.addRow(new Object[] { seriesKey, new Integer(dc.item), x, y });
        }
    }

    private static JFreeChart createChart(XYDataset dataset, DatasetSelectionExtension ext) {
        JFreeChart chart = ChartFactory.createScatterPlot("SelectionDemo2", "X", "Y", dataset,
                PlotOrientation.VERTICAL, true, true, false);

        XYPlot plot = (XYPlot) chart.getPlot();
        plot.setNoDataMessage("NO DATA");

        plot.setDomainPannable(true);
        plot.setRangePannable(true);
        plot.setDomainZeroBaselineVisible(true);
        plot.setRangeZeroBaselineVisible(true);

        plot.setDomainGridlineStroke(new BasicStroke(0.0f));
        plot.setRangeGridlineStroke(new BasicStroke(0.0f));

        plot.setDomainMinorGridlinesVisible(true);
        plot.setRangeMinorGridlinesVisible(true);

        XYLineAndShapeRenderer r = (XYLineAndShapeRenderer) plot.getRenderer();
        r.setSeriesFillPaint(0, r.lookupSeriesPaint(0));
        r.setSeriesFillPaint(1, r.lookupSeriesPaint(1));
        r.setSeriesFillPaint(2, r.lookupSeriesPaint(2));
        r.setUseFillPaint(true);

        NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
        domainAxis.setAutoRangeIncludesZero(false);

        domainAxis.setTickMarkInsideLength(2.0f);
        domainAxis.setTickMarkOutsideLength(2.0f);

        domainAxis.setMinorTickCount(2);
        domainAxis.setMinorTickMarksVisible(true);

        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setTickMarkInsideLength(2.0f);
        rangeAxis.setTickMarkOutsideLength(2.0f);
        rangeAxis.setMinorTickCount(2);
        rangeAxis.setMinorTickMarksVisible(true);

        //add selection specific rendering
        IRSUtilities.setSelectedItemFillPaint(r, ext, Color.white);

        //register plot as selection change listener
        ext.addSelectionChangeListener(plot);

        return chart;
    }

    public static XYDataset createDataset() {
        Random rgen = new Random();
        XYSeriesCollection dataset = new XYSeriesCollection();
        for (int s = 0; s < 3; s++) {
            XYSeries series = new XYSeries("S" + s);
            for (int i = 0; i < 100; i++) {
                double x = rgen.nextGaussian() * 200;
                double y = rgen.nextGaussian() * 200;
                series.add(x, y);
            }
            dataset.addSeries(series);
        }
        return dataset;
    }

    /**
     * Creates a panel for the demo (used by SuperDemo.java).
     *
     * @return A panel.
     */
    public JPanel createDemoPanel() {
        XYDataset dataset = createDataset();
        //extend dataset and add selection change listener for the demo
        DatasetSelectionExtension datasetExtension = new XYDatasetSelectionExtension(dataset);
        datasetExtension.addSelectionChangeListener(this);

        //standard setup
        JFreeChart chart = createChart(dataset, datasetExtension);
        ChartPanel panel = new ChartPanel(chart);
        panel.setMouseWheelEnabled(true);

        // add a selection handler
        RegionSelectionHandler selectionHandler = new CircularRegionSelectionHandler();
        panel.addMouseHandler(selectionHandler);
        panel.addMouseHandler(new MouseClickSelectionHandler());
        panel.removeMouseHandler(panel.getZoomHandler());

        // add a selection manager
        DatasetExtensionManager dExManager = new DatasetExtensionManager();
        dExManager.registerDatasetExtension(datasetExtension);
        panel.setSelectionManager(new EntitySelectionManager(panel, new Dataset[] { dataset }, dExManager));

        return panel;
    }

    /**
     * Starting point for the demonstration application.
     *
     * @param args  ignored.
     */
    public static void main(String[] args) {
        SelectionDemo2 demo = new SelectionDemo2("JFreeChart: SelectionDemo2.java");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);
    }

}