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JFreeChart is a class library, written in Java, for generating charts.
Utilising the Java2D APIs, it currently supports bar charts, pie charts,
line charts, XY-plots and time series plots.
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2013, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* ------------------------
* XYDatasetTableModel.java
* ------------------------
* (C)opyright 2003-2008, by Bryan Scott and Contributors.
*
* Original Author: Bryan Scott ;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* Changes
* -------
* 01-Jul-2003 : Version 1 contributed by Bryan Scott (DG);
* 27-Apr-2005 : Change XYDataset --> TableXYDataset because the table model
* assumes all series share the same x-values, and this is not
* enforced by XYDataset. Also fixed bug 1191046, a problem
* in the getValueAt() method (DG);
*
*/
package org.jfree.data.xy;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
import org.jfree.data.general.DatasetChangeEvent;
import org.jfree.data.general.DatasetChangeListener;
/**
* A READ-ONLY wrapper around a {@link TableXYDataset} to convert it to a
* table model for use in a JTable. The first column of the table shows the
* x-values, the remaining columns show the y-values for each series (series 0
* appears in column 1, series 1 appears in column 2, etc).
*
* TO DO:
*
* - implement proper naming for x axis (getColumnName)
* - implement setValueAt to remove READ-ONLY constraint (not sure how)
*
*/
public class XYDatasetTableModel extends AbstractTableModel
implements TableModel, DatasetChangeListener {
/** The dataset. */
TableXYDataset model = null;
/**
* Default constructor.
*/
public XYDatasetTableModel() {
super();
}
/**
* Creates a new table model based on the specified dataset.
*
* @param dataset the dataset.
*/
public XYDatasetTableModel(TableXYDataset dataset) {
this();
this.model = dataset;
this.model.addChangeListener(this);
}
/**
* Sets the model (dataset).
*
* @param dataset the dataset.
*/
public void setModel(TableXYDataset dataset) {
this.model = dataset;
this.model.addChangeListener(this);
fireTableDataChanged();
}
/**
* Returns the number of rows.
*
* @return The row count.
*/
@Override
public int getRowCount() {
if (this.model == null) {
return 0;
}
return this.model.getItemCount();
}
/**
* Gets the number of columns in the model.
*
* @return The number of columns in the model.
*/
@Override
public int getColumnCount() {
if (this.model == null) {
return 0;
}
return this.model.getSeriesCount() + 1;
}
/**
* Returns the column name.
*
* @param column the column index.
*
* @return The column name.
*/
@Override
public String getColumnName(int column) {
if (this.model == null) {
return super.getColumnName(column);
}
if (column < 1) {
return "X Value";
}
else {
return this.model.getSeriesKey(column - 1).toString();
}
}
/**
* Returns a value of the specified cell.
* Column 0 is the X axis, Columns 1 and over are the Y axis
*
* @param row the row number.
* @param column the column number.
*
* @return The value of the specified cell.
*/
@Override
public Object getValueAt(int row, int column) {
if (this.model == null) {
return null;
}
if (column < 1) {
return this.model.getX(0, row);
}
else {
return this.model.getY(column - 1, row);
}
}
/**
* Receives notification that the underlying dataset has changed.
*
* @param event the event
*
* @see DatasetChangeListener
*/
@Override
public void datasetChanged(DatasetChangeEvent event) {
fireTableDataChanged();
}
/**
* Returns a flag indicating whether or not the specified cell is editable.
*
* @param row the row number.
* @param column the column number.
*
* @return {@code true} if the specified cell is editable.
*/
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
/**
* Updates the {@link XYDataset} if allowed.
*
* @param value the new value.
* @param row the row.
* @param column the column.
*/
@Override
public void setValueAt(Object value, int row, int column) {
if (isCellEditable(row, column)) {
// XYDataset only provides methods for reading a dataset...
}
}
// /**
// * Run a demonstration of the table model interface.
// *
// * @param args ignored.
// *
// * @throws Exception when an error occurs.
// */
// public static void main(String args[]) throws Exception {
// JFrame frame = new JFrame();
// JPanel panel = new JPanel();
// panel.setLayout(new BorderLayout());
//
// XYSeries s1 = new XYSeries("Series 1", true, false);
// for (int i = 0; i < 10; i++) {
// s1.add(i, Math.random());
// }
// XYSeries s2 = new XYSeries("Series 2", true, false);
// for (int i = 0; i < 15; i++) {
// s2.add(i, Math.random());
// }
// DefaultTableXYDataset dataset = new DefaultTableXYDataset();
// dataset.addSeries(s1);
// dataset.addSeries(s2);
// XYDatasetTableModel tablemodel = new XYDatasetTableModel();
//
// tablemodel.setModel(dataset);
//
// JTable dataTable = new JTable(tablemodel);
// JScrollPane scroll = new JScrollPane(dataTable);
// scroll.setPreferredSize(new Dimension(600, 150));
//
// JFreeChart chart = ChartFactory.createXYLineChart(
// "XY Series Demo",
// "X", "Y", dataset, PlotOrientation.VERTICAL,
// true,
// true,
// false
// );
//
// ChartPanel chartPanel = new ChartPanel(chart);
//
// panel.add(chartPanel, BorderLayout.CENTER);
// panel.add(scroll, BorderLayout.SOUTH);
//
// frame.setContentPane(panel);
// frame.setSize(600, 500);
// frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// frame.show();
// RefineryUtilities.centerFrameOnScreen(frame);
// }
}