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1: /* ======================================================================== 2: * JCommon : a free general purpose class 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/jcommon/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: * NumberCellRenderer.java 29: * ----------------------- 30: * (C) Copyright 2000-2004, by Object Refinery Limited. 31: * 32: * Original Author: David Gilbert (for Object Refinery Limited); 33: * Contributor(s): -; 34: * 35: * $Id: NumberCellRenderer.java,v 1.7 2007/11/02 17:50:36 taqua Exp $ 36: * 37: * Changes (from 26-Oct-2001) 38: * -------------------------- 39: * 26-Oct-2001 : Changed package to com.jrefinery.ui.*; 40: * 11-Mar-2002 : Updated import statements (DG); 41: * 42: */ 43: 44: package org.jfree.ui; 45: 46: import java.awt.Component; 47: import java.text.NumberFormat; 48: import javax.swing.JTable; 49: import javax.swing.SwingConstants; 50: import javax.swing.table.DefaultTableCellRenderer; 51: 52: /** 53: * A table cell renderer that formats numbers with right alignment in each cell. 54: * 55: * @author David Gilbert 56: */ 57: public class NumberCellRenderer extends DefaultTableCellRenderer { 58: 59: /** 60: * Default constructor - builds a renderer that right justifies the 61: * contents of a table cell. 62: */ 63: public NumberCellRenderer() { 64: super(); 65: setHorizontalAlignment(SwingConstants.RIGHT); 66: } 67: 68: /** 69: * Returns itself as the renderer. Supports the TableCellRenderer interface. 70: * 71: * @param table the table. 72: * @param value the data to be rendered. 73: * @param isSelected a boolean that indicates whether or not the cell is 74: * selected. 75: * @param hasFocus a boolean that indicates whether or not the cell has 76: * the focus. 77: * @param row the (zero-based) row index. 78: * @param column the (zero-based) column index. 79: * 80: * @return the component that can render the contents of the cell. 81: */ 82: public Component getTableCellRendererComponent(final JTable table, 83: final Object value, final boolean isSelected, 84: final boolean hasFocus, final int row, final int column) { 85: 86: setFont(null); 87: final NumberFormat nf = NumberFormat.getNumberInstance(); 88: if (value != null) { 89: setText(nf.format(value)); 90: } 91: else { 92: setText(""); 93: } 94: if (isSelected) { 95: setBackground(table.getSelectionBackground()); 96: } 97: else { 98: setBackground(null); 99: } 100: return this; 101: } 102: 103: }