org.netxms.ui.eclipse.tools.StringComparator.java Source code

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Here is the source code for org.netxms.ui.eclipse.tools.StringComparator.java

Source

/**
 * NetXMS - open source network management system
 * Copyright (C) 2003-2010 Victor Kirhenshtein
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
package org.netxms.ui.eclipse.tools;

import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.swt.SWT;

/**
 * Viewer comparator for case when model elements are just strings.
 */
public class StringComparator extends ViewerComparator {
    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.ViewerComparator#compare(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
     */
    @Override
    public int compare(Viewer viewer, Object e1, Object e2) {
        int rc = ((String) e1).compareToIgnoreCase((String) e2);
        if (viewer instanceof TableViewer) {
            int dir = ((TableViewer) viewer).getTable().getSortDirection();
            return (dir == SWT.UP) ? rc : -rc;
        }
        return rc;
    }
}