| /******************************************************************************* |
| * Copyright (c) 2000, 2010 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.gef; |
| |
| /** |
| * An <i>adapter</i> on an <code>EditPart</code> used to expose a descendant |
| * contained in that EditPart. <code>EditPartViewer</code> uses this interface |
| * to reveal a given EditPart. |
| * <P> |
| * An expose helper is obtained by calling {@link EditPart#getAdapter(Class)}. |
| * The returned helper is responsible for modifying *only* that EditPart's |
| * visuals such that the specified descendant is made visible. |
| */ |
| public interface ExposeHelper { |
| |
| /** |
| * Exposes the specified descendant on the EditPart which returned this |
| * helper. This is done by adjusting the EditPart's <i>visuals</i> such that |
| * the descendants <i>visuals</i> are exposed. Expose is performed from the |
| * bottom up, meaning that EditParts in the parent-chain between the |
| * helper's EditPart and the <i>descendant</i> will already have had a |
| * change to expose the descendant. |
| * |
| * @param editpart |
| * the descendant to expose |
| */ |
| void exposeDescendant(EditPart editpart); |
| |
| } |
