org.eclipse.gmf.runtime.diagram.core/src/org/eclipse/gmf/runtime/diagram/core/commands/DeleteCommand.java

/******************************************************************************
 * Copyright (c) 2002, 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.runtime.diagram.core.commands;

import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.transaction.util.TransactionUtil;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.core.internal.l10n.DiagramCoreMessages;
import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.notation.View;

/**
 * Deletes a view.  The views affected connections are also deleted if
 * it is a primary view.
 * @author melaasar
 */
public class DeleteCommand extends AbstractTransactionalCommand {

	private View view;

	/**
	 * Creates a new Delete command
     * @param editingDomain
     *            the editing domain through which model changes are made
	 * @param view
	 */
	public DeleteCommand(TransactionalEditingDomain editingDomain, View view) {
		super(editingDomain, DiagramCoreMessages.DeleteCommand_Label,
            getWorkspaceFiles(view));
        this.view = view;
	}
    
    /**
     * Creates a new Delete command. Derives the editing domain from the
     * <code>view</code>.
     * 
     * @param view
     */
    public DeleteCommand(View view) {
        this(TransactionUtil.getEditingDomain(view), view);
    }

	/**
	 * getter for the View that will be deleted
	 * @return the view to be deleted
	 */
	protected View getView() {
		return view;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.gmf.runtime.common.core.command.AbstractCommand2#doExecute(org.eclipse.core.runtime.IProgressMonitor)
	 */
	protected CommandResult doExecuteWithResult(
            IProgressMonitor progressMonitor, IAdaptable info)
        throws ExecutionException {
        
		ViewUtil.destroy(view);
		return CommandResult.newOKCommandResult();
	}

}