org.netxms.ui.eclipse.objecttools.views.helpers.ObjectToolsComparator.java Source code

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Here is the source code for org.netxms.ui.eclipse.objecttools.views.helpers.ObjectToolsComparator.java

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/**
 * NetXMS - open source network management system
 * Copyright (C) 2003-2013 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.objecttools.views.helpers;

import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.swt.SWT;
import org.netxms.client.objecttools.ObjectTool;
import org.netxms.ui.eclipse.objecttools.views.ObjectToolsEditor;
import org.netxms.ui.eclipse.widgets.SortableTableViewer;

/**
 * Comparator for ObjectTool objects
 *
 */
public class ObjectToolsComparator 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) {
        ObjectTool tool1 = (ObjectTool) e1;
        ObjectTool tool2 = (ObjectTool) e2;
        final int column = (Integer) ((SortableTableViewer) viewer).getTable().getSortColumn().getData("ID"); //$NON-NLS-1$

        int result;
        switch (column) {
        case ObjectToolsEditor.COLUMN_ID:
            result = Long.signum(tool1.getId() - tool2.getId());
            break;
        case ObjectToolsEditor.COLUMN_NAME:
            result = tool1.getName().compareToIgnoreCase(tool2.getName());
            break;
        case ObjectToolsEditor.COLUMN_TYPE:
            final ObjectToolsLabelProvider labelProvider = (ObjectToolsLabelProvider) ((SortableTableViewer) viewer)
                    .getLabelProvider();
            result = labelProvider.getToolTypeName(tool1).compareTo(labelProvider.getToolTypeName(tool2));
            break;
        case ObjectToolsEditor.COLUMN_DESCRIPTION:
            result = tool1.getDescription().compareToIgnoreCase(tool2.getDescription());
            break;
        default:
            result = 0;
            break;
        }
        return (((SortableTableViewer) viewer).getTable().getSortDirection() == SWT.UP) ? result : -result;
    }
}