/* -------------------
* SelectionDemo4.java
* -------------------
* (C) Copyright 2004-2014, by Object Refinery Limited.
*
*/
package org.jfree.chart.demo.selection;
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 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.EntitySelectionManager;
import org.jfree.chart.panel.selectionhandler.FreePathSelectionHandler;
import org.jfree.chart.panel.selectionhandler.MouseClickSelectionHandler;
import org.jfree.chart.panel.selectionhandler.RegionSelectionHandler;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.item.IRSUtilities;
import org.jfree.chart.renderer.xy.StandardXYBarPainter;
import org.jfree.chart.renderer.xy.XYBarRenderer;
import org.jfree.chart.demo.ApplicationFrame;
import org.jfree.chart.ui.WindowUtils;
import org.jfree.data.extension.DatasetIterator;
import org.jfree.data.extension.DatasetSelectionExtension;
import org.jfree.data.extension.impl.DatasetExtensionManager;
import org.jfree.data.extension.impl.XYCursor;
import org.jfree.data.extension.impl.XYDatasetSelectionExtension;
import org.jfree.data.general.Dataset;
import org.jfree.data.general.SelectionChangeEvent;
import org.jfree.data.general.SelectionChangeListener;
import org.jfree.data.statistics.HistogramBin;
import org.jfree.data.statistics.HistogramDataset;
import org.jfree.data.xy.IntervalXYDataset;
/**
* A demo of the {@link HistogramDataset} class.
*/
public class SelectionDemo4 extends ApplicationFrame implements
SelectionChangeListener<XYCursor> {
private HistogramDataset dataset;
private DefaultTableModel model;
private JTable table;
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public SelectionDemo4(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 = (HistogramDataset) plot.getDataset();
JSplitPane split = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);
split.add(chartPanel);
this.model = new DefaultTableModel(new String[] { "Item:",
"Bin Start:", "Bin End:", "Value:" }, 0);
this.table = new JTable(this.model);
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 the event.
*/
@Override
public void selectionChanged(SelectionChangeEvent<XYCursor> event) {
while (this.model.getRowCount() > 0) {
this.model.removeRow(0);
}
XYDatasetSelectionExtension ext = (XYDatasetSelectionExtension) event
.getSelectionExtension();
DatasetIterator<XYCursor> iter = ext.getSelectionIterator(true);
while (iter.hasNext()) {
XYCursor dc = iter.next();
this.model.addRow(new Object[] { new Integer(dc.item),
this.dataset.getStartX(dc.series, dc.item),
this.dataset.getEndX(dc.series, dc.item),
this.dataset.getY(dc.series, dc.item) });
}
}
/**
* Creates a sample {@link HistogramDataset}.
*
* @return the dataset.
*/
private static IntervalXYDataset createDataset() {
HistogramDataset dataset = new HistogramDataset("H1");
double lower = 0.0;
for (int i = 0; i < 100; i++) {
double upper = (i + 1) / 10.0;
HistogramBin bin = new HistogramBin(lower, upper, true,
false);
dataset.addBin(bin);
lower = upper;
}
double[] values = new double[1000];
Random generator = new Random(12345678L);
for (int i = 0; i < 1000; i++) {
values[i] = generator.nextGaussian() + 5;
}
dataset.addObservations(values);
return dataset;
}
/**
* Creates a chart.
*
* @param dataset a dataset.
*
* @return The chart.
*/
private static JFreeChart createChart(IntervalXYDataset dataset,
DatasetSelectionExtension<XYCursor> ext) {
JFreeChart chart = ChartFactory.createHistogram("SelectionDemo4", null,
null, dataset);
XYPlot plot = (XYPlot) chart.getPlot();
plot.setDomainPannable(true);
plot.setRangePannable(true);
plot.setForegroundAlpha(0.85f);
NumberAxis yAxis = (NumberAxis) plot.getRangeAxis();
yAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
XYBarRenderer renderer = (XYBarRenderer) plot.getRenderer();
renderer.setDrawBarOutline(true);
renderer.setDefaultOutlinePaint(Color.red);
renderer.setBarPainter(new StandardXYBarPainter());
renderer.setShadowVisible(false);
//add selection specific rendering
IRSUtilities.setSelectedItemPaint(renderer, ext, Color.white);
//register plot as selection change listener
ext.addChangeListener(plot);
return chart;
}
/**
* Creates a panel for the demo (used by SuperDemo.java).
*
* @return A panel.
*/
public final JPanel createDemoPanel() {
IntervalXYDataset xydataset = createDataset();
//extend dataset and add selection change listener for the demo
DatasetSelectionExtension<XYCursor> datasetExtension
= new XYDatasetSelectionExtension(xydataset);
datasetExtension.addChangeListener(this);
//standard setup
JFreeChart chart = createChart(xydataset, datasetExtension);
ChartPanel panel = new ChartPanel(chart);
panel.setMouseWheelEnabled(true);
// add a selection handler
RegionSelectionHandler selectionHandler
= new FreePathSelectionHandler();
panel.addMouseHandler(selectionHandler);
panel.addMouseHandler(new MouseClickSelectionHandler());
panel.removeMouseHandler(panel.getZoomHandler());
// add a selection manager with intersection selection
DatasetExtensionManager dExManager = new DatasetExtensionManager();
dExManager.registerDatasetExtension(datasetExtension);
EntitySelectionManager selectionManager = new EntitySelectionManager(
panel, new Dataset[] { xydataset }, dExManager);
selectionManager.setIntersectionSelection(true);
panel.setSelectionManager(selectionManager);
return panel;
}
/**
* The starting point for the demo.
*
* @param args ignored.
*/
public static void main(String[] args) {
SelectionDemo4 demo = new SelectionDemo4(
"JFreeChart: SelectionDemo4.java");
demo.pack();
WindowUtils.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}