examples/org.eclipse.gmf.examples.mindmap.diagram/src/org/eclipse/gmf/examples/mindmap/diagram/part/MindmapDiagramEditorUtil.java

/*******************************************************************************
 * Copyright (c) 2006 Borland Software 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:
 *     Borland Software Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.gmf.examples.mindmap.diagram.part;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.operations.OperationHistoryFactory;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.xmi.XMIResource;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.examples.mindmap.MindmapFactory;
import org.eclipse.gmf.examples.mindmap.MindmapPackage;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.core.services.ViewService;
import org.eclipse.gmf.runtime.diagram.ui.resources.editor.ide.util.IDEEditorUtil;
import org.eclipse.gmf.runtime.diagram.ui.resources.editor.util.DiagramFileCreator;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.emf.core.GMFEditingDomainFactory;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.jface.operation.IRunnableContext;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchWindow;

/**
 * @generated
 */
public class MindmapDiagramEditorUtil extends IDEEditorUtil {

	/**
	 * @generated
	 */
	public static final IFile createAndOpenDiagram(DiagramFileCreator diagramFileCreator, IPath containerPath, String fileName, InputStream initialContents, String kind, IWorkbenchWindow window,
			IProgressMonitor progressMonitor, boolean openEditor, boolean saveDiagram) {
		IFile diagramFile = MindmapDiagramEditorUtil.createNewDiagramFile(diagramFileCreator, containerPath, fileName, initialContents, kind, window.getShell(), progressMonitor);
		if (diagramFile != null && openEditor) {
			IDEEditorUtil.openDiagram(diagramFile, window, saveDiagram, progressMonitor);
		}
		return diagramFile;
	}

	/**
	 * <p>
	 * This method should be called within a workspace modify operation since it
	 * creates resources.
	 * </p>
	 * 
	 * @generated
	 * @return the created file resource, or <code>null</code> if the file was
	 *         not created
	 */
	public static final IFile createNewDiagramFile(DiagramFileCreator diagramFileCreator, IPath containerFullPath, String fileName, InputStream initialContents, String kind, Shell shell,
			IProgressMonitor progressMonitor) {
		TransactionalEditingDomain editingDomain = GMFEditingDomainFactory.INSTANCE.createEditingDomain();
		ResourceSet resourceSet = editingDomain.getResourceSet();
		progressMonitor.beginTask("Creating diagram and model files", 4); //$NON-NLS-1$
		final IProgressMonitor subProgressMonitor = new SubProgressMonitor(progressMonitor, 1);
		final IFile diagramFile = diagramFileCreator.createNewFile(containerFullPath, fileName, initialContents, shell, new IRunnableContext() {

			public void run(boolean fork, boolean cancelable, IRunnableWithProgress runnable) throws InvocationTargetException, InterruptedException {
				runnable.run(subProgressMonitor);
			}
		});
		final Resource diagramResource = resourceSet.createResource(URI.createPlatformResourceURI(diagramFile.getFullPath().toString()));
		List affectedFiles = new ArrayList();
		affectedFiles.add(diagramFile);

		IPath modelFileRelativePath = diagramFile.getFullPath().removeFileExtension().addFileExtension("mindmap"); //$NON-NLS-1$
		IFile modelFile = diagramFile.getParent().getFile(new Path(modelFileRelativePath.lastSegment()));
		final Resource modelResource = resourceSet.createResource(URI.createPlatformResourceURI(modelFile.getFullPath().toString()));
		affectedFiles.add(modelFile);

		final String kindParam = kind;
		AbstractTransactionalCommand command = new AbstractTransactionalCommand(editingDomain, "Creating diagram and model", affectedFiles) { //$NON-NLS-1$

			protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
				EObject model = createInitialModel();
				modelResource.getContents().add(createInitialRoot(model));
				Diagram diagram = ViewService.createDiagram(model, kindParam, MindmapDiagramEditorPlugin.DIAGRAM_PREFERENCES_HINT);
				if (diagram != null) {
					diagramResource.getContents().add(diagram);
					diagram.setName(diagramFile.getName());
					diagram.setElement(model);
				}
				return CommandResult.newOKCommandResult();
			}
		};

		try {
			OperationHistoryFactory.getOperationHistory().execute(command, new SubProgressMonitor(progressMonitor, 1), null);
		} catch (ExecutionException e) {
			MindmapDiagramEditorPlugin.getInstance().logError("Unable to create model and diagram", e); //$NON-NLS-1$
		}

		try {
			Map options = new HashMap();
			options.put(XMIResource.OPTION_ENCODING, "UTF-8"); //$NON-NLS-1$
			modelResource.save(options);
			diagramResource.save(Collections.EMPTY_MAP);
		} catch (IOException e) {
			MindmapDiagramEditorPlugin.getInstance().logError("Unable to store model and diagram resources", e); //$NON-NLS-1$
		}

		try {
			modelFile.setCharset("UTF-8", new SubProgressMonitor(progressMonitor, 1)); //$NON-NLS-1$
		} catch (CoreException e) {
			MindmapDiagramEditorPlugin.getInstance().logError("Unable to set charset for model file", e); //$NON-NLS-1$
		}
		try {
			diagramFile.setCharset("UTF-8", new SubProgressMonitor(progressMonitor, 1)); //$NON-NLS-1$
		} catch (CoreException e) {
			MindmapDiagramEditorPlugin.getInstance().logError("Unable to set charset for diagram file", e); //$NON-NLS-1$
		}

		return diagramFile;
	}

	/**
	 * Create a new instance of domain element associated with canvas. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	private static EObject createInitialModel() {
		return MindmapFactory.eINSTANCE.create(MindmapPackage.eINSTANCE.getMap());
	}

	/**
	 * @generated
	 */
	private static EObject createInitialRoot(EObject model) {
		return model;
	}
}