Frames | No Frames |
1: /* =========================================================== 2: * JFreeChart : a free chart library for the Java(tm) platform 3: * =========================================================== 4: * 5: * (C) Copyright 2000-2005, 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 2003-2005, 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: * @author Bryan Scott 66: */ 67: public class XYDatasetTableModel extends AbstractTableModel 68: implements TableModel, DatasetChangeListener { 69: 70: /** The dataset. */ 71: TableXYDataset model = null; 72: 73: /** 74: * Default constructor. 75: */ 76: public XYDatasetTableModel() { 77: super(); 78: } 79: 80: /** 81: * Creates a new table model based on the specified dataset. 82: * 83: * @param dataset the dataset. 84: */ 85: public XYDatasetTableModel(TableXYDataset dataset) { 86: this(); 87: this.model = dataset; 88: this.model.addChangeListener(this); 89: } 90: 91: /** 92: * Sets the model (dataset). 93: * 94: * @param dataset the dataset. 95: */ 96: public void setModel(TableXYDataset dataset) { 97: this.model = dataset; 98: this.model.addChangeListener(this); 99: fireTableDataChanged(); 100: } 101: 102: /** 103: * Returns the number of rows. 104: * 105: * @return The row count. 106: */ 107: public int getRowCount() { 108: if (this.model == null) { 109: return 0; 110: } 111: return this.model.getItemCount(); 112: } 113: 114: /** 115: * Gets the number of columns in the model. 116: * 117: * @return The number of columns in the model. 118: */ 119: public int getColumnCount() { 120: if (this.model == null) { 121: return 0; 122: } 123: return this.model.getSeriesCount() + 1; 124: } 125: 126: /** 127: * Returns the column name. 128: * 129: * @param column the column index. 130: * 131: * @return The column name. 132: */ 133: public String getColumnName(int column) { 134: if (this.model == null) { 135: return super.getColumnName(column); 136: } 137: if (column < 1) { 138: return "X Value"; 139: } 140: else { 141: return this.model.getSeriesKey(column - 1).toString(); 142: } 143: } 144: 145: /** 146: * Returns a value of the specified cell. 147: * Column 0 is the X axis, Columns 1 and over are the Y axis 148: * 149: * @param row the row number. 150: * @param column the column number. 151: * 152: * @return The value of the specified cell. 153: */ 154: public Object getValueAt(int row, int column) { 155: if (this.model == null) { 156: return null; 157: } 158: if (column < 1) { 159: return this.model.getX(0, row); 160: } 161: else { 162: return this.model.getY(column - 1, row); 163: } 164: } 165: 166: /** 167: * Receives notification that the underlying dataset has changed. 168: * 169: * @param event the event 170: * 171: * @see DatasetChangeListener 172: */ 173: public void datasetChanged(DatasetChangeEvent event) { 174: fireTableDataChanged(); 175: } 176: 177: /** 178: * Returns a flag indicating whether or not the specified cell is editable. 179: * 180: * @param row the row number. 181: * @param column the column number. 182: * 183: * @return <code>true</code> if the specified cell is editable. 184: */ 185: public boolean isCellEditable(int row, int column) { 186: return false; 187: } 188: 189: /** 190: * Updates the {@link XYDataset} if allowed. 191: * 192: * @param value the new value. 193: * @param row the row. 194: * @param column the column. 195: */ 196: public void setValueAt(Object value, int row, int column) { 197: if (isCellEditable(row, column)) { 198: // XYDataset only provides methods for reading a dataset... 199: } 200: } 201: 202: // /** 203: // * Run a demonstration of the table model interface. 204: // * 205: // * @param args ignored. 206: // * 207: // * @throws Exception when an error occurs. 208: // */ 209: // public static void main(String args[]) throws Exception { 210: // JFrame frame = new JFrame(); 211: // JPanel panel = new JPanel(); 212: // panel.setLayout(new BorderLayout()); 213: // 214: // XYSeries s1 = new XYSeries("Series 1", true, false); 215: // for (int i = 0; i < 10; i++) { 216: // s1.add(i, Math.random()); 217: // } 218: // XYSeries s2 = new XYSeries("Series 2", true, false); 219: // for (int i = 0; i < 15; i++) { 220: // s2.add(i, Math.random()); 221: // } 222: // DefaultTableXYDataset dataset = new DefaultTableXYDataset(); 223: // dataset.addSeries(s1); 224: // dataset.addSeries(s2); 225: // XYDatasetTableModel tablemodel = new XYDatasetTableModel(); 226: // 227: // tablemodel.setModel(dataset); 228: // 229: // JTable dataTable = new JTable(tablemodel); 230: // JScrollPane scroll = new JScrollPane(dataTable); 231: // scroll.setPreferredSize(new Dimension(600, 150)); 232: // 233: // JFreeChart chart = ChartFactory.createXYLineChart( 234: // "XY Series Demo", 235: // "X", "Y", dataset, PlotOrientation.VERTICAL, 236: // true, 237: // true, 238: // false 239: // ); 240: // 241: // ChartPanel chartPanel = new ChartPanel(chart); 242: // 243: // panel.add(chartPanel, BorderLayout.CENTER); 244: // panel.add(scroll, BorderLayout.SOUTH); 245: // 246: // frame.setContentPane(panel); 247: // frame.setSize(600, 500); 248: // frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 249: // frame.show(); 250: // RefineryUtilities.centerFrameOnScreen(frame); 251: // } 252: 253: }