DeleteElementAction.java

/*
* DeleteElementAction.java
*
* This file is part of the STS-Tool project.
* Copyright (c) 2011-2012 "University of Trento - DISI" All rights reserved.
*
* Is strictly forbidden to remove this copyright notice from this source code.
*
* Disclaimer of Warranty:
* STS-Tool (this software) is provided "as-is" and without warranty of any kind, 
* express, implied or otherwise, including without limitation, any warranty of 
* merchantability or fitness for a particular purpose.
* In no event shall the copyright holder or contributors be liable for any direct,
* indirect, incidental, special, exemplary, or consequential damages
* including, but not limited to, procurement of substitute goods or services;
* loss of use, data, or profits; or business interruption) however caused and on
* any theory of liability, whether in contract, strict liability, or tort (including
* negligence or otherwise) arising in any way out of the use of this software, even 
* if advised of the possibility of such damage.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 
* "University of Trento - DISI","University of Trento - DISI" DISCLAIMS THE
* WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://www.sts-tool.eu/License.php
*
* For more information, please contact STS-Tool group at this
* address: ststool@disi.unitn.it
*
*/
package eu.aniketos.wp1.ststool.diagram.part;

import java.util.Iterator;
import java.util.List;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.UnexecutableCommand;
import org.eclipse.gmf.runtime.diagram.ui.actions.AbstractDeleteFromAction;
import org.eclipse.gmf.runtime.diagram.ui.actions.ActionIds;
import org.eclipse.gmf.runtime.diagram.ui.commands.CommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.l10n.DiagramUIMessages;
import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PlatformUI;

/**
 * @generated
 */
public class DeleteElementAction extends AbstractDeleteFromAction {

	/**
	 * @generated
	 */
	public DeleteElementAction(IWorkbenchPart part) {
		super(part);
	}

	/**
	 * @generated
	 */
	public DeleteElementAction(IWorkbenchPage workbenchPage) {
		super(workbenchPage);
	}

	/**
	 * @generated
	 */
	@Override
	public void init(){
		super.init();
		setId(ActionIds.ACTION_DELETE_FROM_MODEL);
		setText(DiagramUIMessages.DiagramEditor_Delete_from_Model);
		setToolTipText(DiagramUIMessages.DiagramEditor_Delete_from_ModelToolTip);
		ISharedImages workbenchImages = PlatformUI.getWorkbench().getSharedImages();
		setHoverImageDescriptor(workbenchImages.getImageDescriptor(ISharedImages.IMG_TOOL_DELETE));
		setImageDescriptor(workbenchImages.getImageDescriptor(ISharedImages.IMG_TOOL_DELETE));
		setDisabledImageDescriptor(workbenchImages.getImageDescriptor(ISharedImages.IMG_TOOL_DELETE_DISABLED));
	}

	/**
	 * @generated
	 */
	@Override
	protected String getCommandLabel(){
		return DiagramUIMessages.DiagramEditor_Delete_from_Model;
	}

	/**
	 * @generated
	 */
	@Override
	protected Command getCommand(Request request){
		List operationSet = getOperationSet();
		if (operationSet.isEmpty()) { return UnexecutableCommand.INSTANCE; }
		Iterator editParts = operationSet.iterator();
		CompositeTransactionalCommand command = new CompositeTransactionalCommand(getEditingDomain(), getCommandLabel());
		while (editParts.hasNext()) {
			EditPart editPart = (EditPart) editParts.next();
			Command curCommand = editPart.getCommand(request);
			if (curCommand != null) {
				command.compose(new CommandProxy(curCommand));
			}
		}
		if (command.isEmpty() || command.size() != operationSet.size()) { return UnexecutableCommand.INSTANCE; }
		return new ICommandProxy(command);
	}
}