DateTableRenderer.java

/*
 * This file is part of the aidGer project.
 *
 * Copyright (C) 2010-2013 The aidGer Team
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package de.aidger.view.utils;

import java.awt.Component;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;

/**
 * Renders a date in the given format on a table.
 * 
 * @author aidGer Team
 */
@SuppressWarnings("serial")
public class DateTableRenderer extends DefaultTableCellRenderer {

    private final DateFormat format;

    public DateTableRenderer(String f) {
        format = new SimpleDateFormat(f);
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * javax.swing.table.DefaultTableCellRenderer#getTableCellRendererComponent
     * (javax.swing.JTable, java.lang.Object, boolean, boolean, int, int)
     */
    @Override
    public Component getTableCellRendererComponent(JTable table, Object value,
            boolean isSelected, boolean hasFocus, int row, int column) {
    	String text = "";
    	if (value != null && Date.class.isInstance(value)) {
	        Calendar cal = Calendar.getInstance();
	        cal.clear();
	
	        // it could be that no date shall be shown
	        if (!value.equals(cal.getTime())) {
	        	text = format.format((Date) value);
	        }
    	}

        return super.getTableCellRendererComponent(table, text, isSelected,
            hasFocus, row, column);
    }
}