/*******************************************************************************
* Copyright (c) 2008 xored software, Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* xored software, Inc. - initial API and Implementation (Alex Panchenko)
*******************************************************************************/
package org.eclipse.dltk.tcl.activestatedebugger.preferences;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
public class InstrumentationPatternComparator extends ViewerComparator {
@Override
public int category(Object element) {
if (element instanceof ModelElementPattern) {
return 1;
} else {
return 0;
}
}
@Override
public int compare(Viewer viewer, Object e1, Object e2) {
int category1 = category(e1);
int category2 = category(e2);
if (category1 != category2) {
return category1 - category2;
}
if (e1 instanceof ModelElementPattern
&& e2 instanceof ModelElementPattern) {
String path1 = ((ModelElementPattern) e1).getHandleIdentifier();
String path2 = ((ModelElementPattern) e2).getHandleIdentifier();
if (path1 != null) {
return path1.compareTo(path2);
}
}
return super.compare(viewer, e1, e2);
}
}