com.nokia.sdt.uidesigner.events.EventTreeViewer.java Source code

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Here is the source code for com.nokia.sdt.uidesigner.events.EventTreeViewer.java

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/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: 
*
*/
package com.nokia.sdt.uidesigner.events;

import com.nokia.cpp.internal.api.utils.core.ObjectUtils;

import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.widgets.Composite;

/**
 * TreeViewer's support of in-place cell editing 
 * is a little immature and uses private classes
 * that we can't override. This derived class
 * is for code to make it work.
 * 
 *
 */
public class EventTreeViewer extends TreeViewer {

    public EventTreeViewer(Composite parent, int style) {
        super(parent, style);
    }

    public void setSelection(ISelection selection, boolean reveal) {
        // don't cause spurious events selecting things that are already
        // selected
        ISelection curr = this.getSelection();
        if (!ObjectUtils.equals(selection, curr)) {
            super.setSelection(selection, reveal);
        }
    }
}