org.eclipse.e4.tools.preference.spy.parts.viewer.PreferenceEntryViewerComparator.java Source code

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Here is the source code for org.eclipse.e4.tools.preference.spy.parts.viewer.PreferenceEntryViewerComparator.java

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/*******************************************************************************
 * Copyright (c) 2015 vogella GmbH.
 * 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:
 *     Simon Scholz <simon.scholz@vogella.com> - initial API and implementation
 *******************************************************************************/
package org.eclipse.e4.tools.preference.spy.parts.viewer;

import java.util.Comparator;

import org.eclipse.e4.tools.preference.spy.model.PreferenceEntry;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;

public class PreferenceEntryViewerComparator extends ViewerComparator {

    public PreferenceEntryViewerComparator() {
    }

    public PreferenceEntryViewerComparator(Comparator<? super String> comparator) {
        super(comparator);
    }

    @Override
    public int compare(Viewer viewer, Object e1, Object e2) {
        if (e1 instanceof PreferenceEntry && e2 instanceof PreferenceEntry) {
            PreferenceEntry entry1 = (PreferenceEntry) e1;
            PreferenceEntry entry2 = (PreferenceEntry) e2;

            long time = entry1.getTime();
            long time2 = entry2.getTime();

            if (time != 0 && time2 != 0) {
                return (int) (time2 - time);
            }
        }

        return super.compare(viewer, e1, e2);
    }

    @Override
    public int category(Object element) {
        if (element instanceof PreferenceEntry) {
            return ((PreferenceEntry) element).isRecentlyChanged() ? 0 : 1;
        }
        return 2;
    }

}