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/*******************************************************************************
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* Copyright (c) 2000, 2010 IBM Corporation and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package org.eclipse.gef.editparts;
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import org.eclipse.draw2d.IFigure;
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import org.eclipse.draw2d.Viewport;
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import org.eclipse.gef.GraphicalEditPart;
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/**
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* @author hudsonr
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*/
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abstract class ViewportHelper {
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protected GraphicalEditPart owner;
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protected ViewportHelper(GraphicalEditPart owner) {
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this.owner = owner;
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}
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protected Viewport findViewport(GraphicalEditPart part) {
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IFigure figure = null;
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Viewport port = null;
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do {
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if (figure == null)
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figure = part.getContentPane();
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else
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figure = figure.getParent();
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if (figure instanceof Viewport) {
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port = (Viewport) figure;
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break;
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}
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} while (figure != part.getFigure() && figure != null);
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return port;
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}
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}
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