001 /* ======================================================================== 002 * JCommon : a free general purpose class library for the Java(tm) platform 003 * ======================================================================== 004 * 005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 006 * 007 * Project Info: http://www.jfree.org/jcommon/index.html 008 * 009 * This library is free software; you can redistribute it and/or modify it 010 * under the terms of the GNU Lesser General Public License as published by 011 * the Free Software Foundation; either version 2.1 of the License, or 012 * (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but 015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 017 * License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this library; if not, write to the Free Software 021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 022 * USA. 023 * 024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 025 * in the United States and other countries.] 026 * 027 * --------------------- 028 * DateCellRenderer.java 029 * --------------------- 030 * (C) Copyright 2003, 2004, by Object Refinery Limited. 031 * 032 * Original Author: David Gilbert (for Object Refinery Limited); 033 * Contributor(s): -; 034 * 035 * $Id: DateCellRenderer.java,v 1.6 2006/04/30 09:07:20 taqua Exp $ 036 * 037 * Changes (from 26-Oct-2001) 038 * -------------------------- 039 * 24-Jul-2003 : Version 1 (DG); 040 * 041 */ 042 043 package org.jfree.ui; 044 045 import java.awt.Component; 046 import java.text.DateFormat; 047 048 import javax.swing.JTable; 049 import javax.swing.SwingConstants; 050 import javax.swing.table.DefaultTableCellRenderer; 051 052 /** 053 * A table cell renderer that formats dates. 054 * 055 * @author David Gilbert 056 */ 057 public class DateCellRenderer extends DefaultTableCellRenderer { 058 059 /** The formatter. */ 060 private DateFormat formatter; 061 062 /** 063 * Default constructor. 064 */ 065 public DateCellRenderer() { 066 this(DateFormat.getDateTimeInstance()); 067 } 068 069 /** 070 * Creates a new renderer. 071 * 072 * @param formatter the formatter. 073 */ 074 public DateCellRenderer(final DateFormat formatter) { 075 super(); 076 this.formatter = formatter; 077 setHorizontalAlignment(SwingConstants.CENTER); 078 } 079 080 /** 081 * Returns itself as the renderer. Supports the TableCellRenderer interface. 082 * 083 * @param table the table. 084 * @param value the data to be rendered. 085 * @param isSelected a boolean that indicates whether or not the cell is 086 * selected. 087 * @param hasFocus a boolean that indicates whether or not the cell has 088 * the focus. 089 * @param row the (zero-based) row index. 090 * @param column the (zero-based) column index. 091 * 092 * @return the component that can render the contents of the cell. 093 */ 094 public Component getTableCellRendererComponent(final JTable table, 095 final Object value, final boolean isSelected, 096 final boolean hasFocus, final int row, final int column) { 097 098 setFont(null); 099 if (value != null) { 100 setText(this.formatter.format(value)); 101 } 102 else { 103 setText(""); 104 } 105 if (isSelected) { 106 setBackground(table.getSelectionBackground()); 107 } 108 else { 109 setBackground(null); 110 } 111 return this; 112 } 113 114 }