| /****************************************************************************** |
| * Copyright (c) 2002, 2004 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.gmf.runtime.diagram.ui.editpolicies; |
| |
| import org.eclipse.gef.AccessibleHandleProvider; |
| import org.eclipse.gef.Request; |
| import org.eclipse.gef.commands.Command; |
| |
| /** |
| * This edit policy does not allow elements to be moved |
| * |
| * @author Wayne Diu, wdiu |
| **/ |
| public class UnmovableShapeEditPolicy extends ResizableShapeEditPolicy { |
| |
| /** |
| * Just override getCommand to always return null. |
| * |
| * Then, it won't support move or align, and orphan because aligning |
| * means moving the element and orphan implies that the element has |
| * moved somewhere. |
| * |
| * @see org.eclipse.gef.EditPolicy#getCommand(org.eclipse.gef.Request) |
| */ |
| public Command getCommand(Request request) { |
| return null; |
| } |
| |
| /** |
| * Since unmoveable, override to never return an AccessibleHandleProvider |
| * |
| * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class) |
| */ |
| public Object getAdapter(Class key) { |
| if (key == AccessibleHandleProvider.class) { |
| return null; |
| } |
| return super.getAdapter(key); |
| } |
| } |