| /****************************************************************************** |
| * Copyright (c) 2004, 2008 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.providers.internal; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.gef.EditPart; |
| import org.eclipse.gmf.runtime.common.core.service.AbstractProvider; |
| import org.eclipse.gmf.runtime.common.core.service.IOperation; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.IPrimaryEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.services.decorator.CreateDecoratorsOperation; |
| import org.eclipse.gmf.runtime.diagram.ui.services.decorator.IDecoratorKeys; |
| import org.eclipse.gmf.runtime.diagram.ui.services.decorator.IDecoratorProvider; |
| import org.eclipse.gmf.runtime.diagram.ui.services.decorator.IDecoratorTarget; |
| import org.eclipse.gmf.runtime.notation.View; |
| |
| /** |
| * Provides decorators for the GMF diagram layer. |
| * |
| * @author cmahoney |
| * @canBeSeenBy org.eclipse.gmf.runtime.diagram.ui.providers.* |
| */ |
| public class DiagramDecoratorProvider |
| extends AbstractProvider |
| implements IDecoratorProvider { |
| |
| public void createDecorators(IDecoratorTarget decoratorTarget) { |
| EditPart ep = (EditPart)decoratorTarget.getAdapter(EditPart.class); |
| if (ep != null && ep instanceof IPrimaryEditPart) { |
| decoratorTarget.installDecorator(IDecoratorKeys.BOOKMARK, |
| new BookmarkDecorator(decoratorTarget)); |
| Object model = ep.getModel(); |
| if(!(model instanceof View)) |
| return; |
| if (((View)model).getElement() != null) { |
| // needs to have a reference that isn't null (i.e. have a semantic element) |
| decoratorTarget.installDecorator(IDecoratorKeys.UNRESOLVED_VIEW, |
| new UnresolvedViewDecorator(decoratorTarget)); |
| } |
| } |
| } |
| |
| public boolean provides(IOperation operation) { |
| Assert.isNotNull(operation); |
| |
| if (!(operation instanceof CreateDecoratorsOperation)) { |
| return false; |
| } |
| |
| IDecoratorTarget decoratorTarget = ((CreateDecoratorsOperation) operation) |
| .getDecoratorTarget(); |
| return decoratorTarget.getAdapter(View.class) != null; |
| } |
| |
| } |