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: } else {
102: setText("");
103: }
104: if (isSelected) {
105: setBackground(table.getSelectionBackground());
106: } else {
107: setBackground(null);
108: }
109: return this;
110: }
111:
112: }
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