/* ========================================================================
* JCommon : a free general purpose class library for the Java(tm) platform
* ========================================================================
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* -----------------------
* NumberCellRenderer.java
* -----------------------
* (C) Copyright 2000-2004, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: NumberCellRenderer.java,v 1.7 2007/11/02 17:50:36 taqua Exp $
*
* Changes (from 26-Oct-2001)
* --------------------------
* 26-Oct-2001 : Changed package to com.jrefinery.ui.*;
* 11-Mar-2002 : Updated import statements (DG);
*
*/
package org.jfree.ui;
import java.awt.Component;
import java.text.NumberFormat;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.table.DefaultTableCellRenderer;
/**
* A table cell renderer that formats numbers with right alignment in each cell.
*
* @author David Gilbert
*/
public class NumberCellRenderer extends DefaultTableCellRenderer {
/**
* Default constructor - builds a renderer that right justifies the
* contents of a table cell.
*/
public NumberCellRenderer() {
super();
setHorizontalAlignment(SwingConstants.RIGHT);
}
/**
* Returns itself as the renderer. Supports the TableCellRenderer interface.
*
* @param table the table.
* @param value the data to be rendered.
* @param isSelected a boolean that indicates whether or not the cell is
* selected.
* @param hasFocus a boolean that indicates whether or not the cell has
* the focus.
* @param row the (zero-based) row index.
* @param column the (zero-based) column index.
*
* @return the component that can render the contents of the cell.
*/
public Component getTableCellRendererComponent(final JTable table,
final Object value, final boolean isSelected,
final boolean hasFocus, final int row, final int column) {
setFont(null);
final NumberFormat nf = NumberFormat.getNumberInstance();
if (value != null) {
setText(nf.format(value));
}
else {
setText("");
}
if (isSelected) {
setBackground(table.getSelectionBackground());
}
else {
setBackground(null);
}
return this;
}
}