| /****************************************************************************** |
| * Copyright (c) 2005, 2006 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.examples.runtime.diagram.layout.actions; |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.NullProgressMonitor; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.emf.transaction.util.TransactionUtil; |
| import org.eclipse.emf.workspace.AbstractEMFOperation; |
| import org.eclipse.gmf.examples.runtime.diagram.layout.provider.SquareLayoutProvider; |
| import org.eclipse.gmf.runtime.diagram.ui.services.layout.LayoutService; |
| import org.eclipse.gmf.runtime.notation.Diagram; |
| import org.eclipse.gmf.runtime.notation.View; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.IWorkbenchWindowActionDelegate; |
| import org.eclipse.ui.PlatformUI; |
| |
| |
| /** |
| * @author sshaw |
| * |
| * Sample action for demonstrating invokation of a custom layout provider. In this |
| * case the square layout provider is invoked through a separate menu action. |
| */ |
| public class SquareLayoutAction implements IWorkbenchWindowActionDelegate { |
| |
| /** |
| * Title of diagram creation operation |
| */ |
| private static final String KEY_SQUARE_LAYOUT = "squareLayoutTitle"; //$NON-NLS-1$ |
| |
| /** |
| * Constructor |
| */ |
| public SquareLayoutAction() { |
| //No-op |
| } |
| |
| /** |
| * Walk the selected objects and creates a new diagram for each visited |
| * packages |
| * |
| * @see IWorkbenchWindowActionDelegate#run |
| */ |
| public void run(IAction action) { |
| |
| /* Get selection */ |
| IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); |
| |
| // Get selection from the window |
| final ISelection selection = window.getSelectionService().getSelection(); |
| Diagram diagramView = null; |
| |
| // get the editing domain |
| if (selection instanceof IStructuredSelection) { |
| |
| IStructuredSelection structuredSelection = (IStructuredSelection) selection; |
| |
| // Walk selection |
| for (Iterator i = structuredSelection.iterator(); i.hasNext();) { |
| |
| // Try to adapt the selection to a view |
| Object selectedObject = i.next(); |
| if (selectedObject instanceof IAdaptable) { |
| |
| // Try to get a View (new notation) |
| Object object = ((IAdaptable) selectedObject) |
| .getAdapter(View.class); |
| |
| diagramView = ((View)object).getDiagram(); |
| } |
| } |
| } |
| |
| if (diagramView != null) { |
| final Diagram diag = diagramView; |
| TransactionalEditingDomain ted = TransactionUtil.getEditingDomain(diagramView); |
| AbstractEMFOperation operation = new AbstractEMFOperation( |
| ted, KEY_SQUARE_LAYOUT, null) { |
| |
| protected IStatus doExecute(IProgressMonitor monitor, |
| IAdaptable info) |
| throws ExecutionException { |
| |
| LayoutService.getInstance().layout(diag, SquareLayoutProvider.SQUARE_LAYOUT); |
| |
| return Status.OK_STATUS; |
| } |
| }; |
| try { |
| operation.execute(new NullProgressMonitor(), null); |
| } |
| catch (Exception e) { |
| throw new RuntimeException(e.getCause()); |
| } |
| } |
| } |
| |
| /** |
| * @see IWorkbenchWindowActionDelegate#selectionChanged |
| */ |
| public void selectionChanged(IAction action, ISelection selection) { |
| //No-op |
| } |
| |
| /** |
| * @see IWorkbenchWindowActionDelegate#dispose |
| */ |
| public void dispose() { |
| //No-op |
| } |
| |
| /** |
| * @see IWorkbenchWindowActionDelegate#init |
| */ |
| public void init(IWorkbenchWindow windowIn) { |
| //No-op |
| } |
| } |