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1: /* =========================================================== 2: * JFreeChart : a free chart library for the Java(tm) platform 3: * =========================================================== 4: * 5: * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jfreechart/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * ------------------------ 28: * XYDatasetTableModel.java 29: * ------------------------ 30: * (C)opyright 2003-2007, by Bryan Scott and Contributors. 31: * 32: * Original Author: Bryan Scott ; 33: * Contributor(s): David Gilbert (for Object Refinery Limited); 34: * 35: * Changes 36: * ------- 37: * 01-Jul-2003 : Version 1 contributed by Bryan Scott (DG); 38: * 27-Apr-2005 : Change XYDataset --> TableXYDataset because the table model 39: * assumes all series share the same x-values, and this is not 40: * enforced by XYDataset. Also fixed bug 1191046, a problem 41: * in the getValueAt() method (DG); 42: * 43: */ 44: 45: package org.jfree.data.xy; 46: 47: import javax.swing.table.AbstractTableModel; 48: import javax.swing.table.TableModel; 49: 50: import org.jfree.data.general.DatasetChangeEvent; 51: import org.jfree.data.general.DatasetChangeListener; 52: 53: /** 54: * A READ-ONLY wrapper around a {@link TableXYDataset} to convert it to a 55: * table model for use in a JTable. The first column of the table shows the 56: * x-values, the remaining columns show the y-values for each series (series 0 57: * appears in column 1, series 1 appears in column 2, etc). 58: * <P> 59: * TO DO: 60: * <ul> 61: * <li>implement proper naming for x axis (getColumnName)</li> 62: * <li>implement setValueAt to remove READ-ONLY constraint (not sure how)</li> 63: * </ul> 64: */ 65: public class XYDatasetTableModel extends AbstractTableModel 66: implements TableModel, DatasetChangeListener { 67: 68: /** The dataset. */ 69: TableXYDataset model = null; 70: 71: /** 72: * Default constructor. 73: */ 74: public XYDatasetTableModel() { 75: super(); 76: } 77: 78: /** 79: * Creates a new table model based on the specified dataset. 80: * 81: * @param dataset the dataset. 82: */ 83: public XYDatasetTableModel(TableXYDataset dataset) { 84: this(); 85: this.model = dataset; 86: this.model.addChangeListener(this); 87: } 88: 89: /** 90: * Sets the model (dataset). 91: * 92: * @param dataset the dataset. 93: */ 94: public void setModel(TableXYDataset dataset) { 95: this.model = dataset; 96: this.model.addChangeListener(this); 97: fireTableDataChanged(); 98: } 99: 100: /** 101: * Returns the number of rows. 102: * 103: * @return The row count. 104: */ 105: public int getRowCount() { 106: if (this.model == null) { 107: return 0; 108: } 109: return this.model.getItemCount(); 110: } 111: 112: /** 113: * Gets the number of columns in the model. 114: * 115: * @return The number of columns in the model. 116: */ 117: public int getColumnCount() { 118: if (this.model == null) { 119: return 0; 120: } 121: return this.model.getSeriesCount() + 1; 122: } 123: 124: /** 125: * Returns the column name. 126: * 127: * @param column the column index. 128: * 129: * @return The column name. 130: */ 131: public String getColumnName(int column) { 132: if (this.model == null) { 133: return super.getColumnName(column); 134: } 135: if (column < 1) { 136: return "X Value"; 137: } 138: else { 139: return this.model.getSeriesKey(column - 1).toString(); 140: } 141: } 142: 143: /** 144: * Returns a value of the specified cell. 145: * Column 0 is the X axis, Columns 1 and over are the Y axis 146: * 147: * @param row the row number. 148: * @param column the column number. 149: * 150: * @return The value of the specified cell. 151: */ 152: public Object getValueAt(int row, int column) { 153: if (this.model == null) { 154: return null; 155: } 156: if (column < 1) { 157: return this.model.getX(0, row); 158: } 159: else { 160: return this.model.getY(column - 1, row); 161: } 162: } 163: 164: /** 165: * Receives notification that the underlying dataset has changed. 166: * 167: * @param event the event 168: * 169: * @see DatasetChangeListener 170: */ 171: public void datasetChanged(DatasetChangeEvent event) { 172: fireTableDataChanged(); 173: } 174: 175: /** 176: * Returns a flag indicating whether or not the specified cell is editable. 177: * 178: * @param row the row number. 179: * @param column the column number. 180: * 181: * @return <code>true</code> if the specified cell is editable. 182: */ 183: public boolean isCellEditable(int row, int column) { 184: return false; 185: } 186: 187: /** 188: * Updates the {@link XYDataset} if allowed. 189: * 190: * @param value the new value. 191: * @param row the row. 192: * @param column the column. 193: */ 194: public void setValueAt(Object value, int row, int column) { 195: if (isCellEditable(row, column)) { 196: // XYDataset only provides methods for reading a dataset... 197: } 198: } 199: 200: // /** 201: // * Run a demonstration of the table model interface. 202: // * 203: // * @param args ignored. 204: // * 205: // * @throws Exception when an error occurs. 206: // */ 207: // public static void main(String args[]) throws Exception { 208: // JFrame frame = new JFrame(); 209: // JPanel panel = new JPanel(); 210: // panel.setLayout(new BorderLayout()); 211: // 212: // XYSeries s1 = new XYSeries("Series 1", true, false); 213: // for (int i = 0; i < 10; i++) { 214: // s1.add(i, Math.random()); 215: // } 216: // XYSeries s2 = new XYSeries("Series 2", true, false); 217: // for (int i = 0; i < 15; i++) { 218: // s2.add(i, Math.random()); 219: // } 220: // DefaultTableXYDataset dataset = new DefaultTableXYDataset(); 221: // dataset.addSeries(s1); 222: // dataset.addSeries(s2); 223: // XYDatasetTableModel tablemodel = new XYDatasetTableModel(); 224: // 225: // tablemodel.setModel(dataset); 226: // 227: // JTable dataTable = new JTable(tablemodel); 228: // JScrollPane scroll = new JScrollPane(dataTable); 229: // scroll.setPreferredSize(new Dimension(600, 150)); 230: // 231: // JFreeChart chart = ChartFactory.createXYLineChart( 232: // "XY Series Demo", 233: // "X", "Y", dataset, PlotOrientation.VERTICAL, 234: // true, 235: // true, 236: // false 237: // ); 238: // 239: // ChartPanel chartPanel = new ChartPanel(chart); 240: // 241: // panel.add(chartPanel, BorderLayout.CENTER); 242: // panel.add(scroll, BorderLayout.SOUTH); 243: // 244: // frame.setContentPane(panel); 245: // frame.setSize(600, 500); 246: // frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 247: // frame.show(); 248: // RefineryUtilities.centerFrameOnScreen(frame); 249: // } 250: 251: }