| /****************************************************************************** |
| * Copyright (c) 2007 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.logic.internal.commands; |
| |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| 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.gmf.examples.runtime.diagram.logic.internal.editparts.TerminalEditPart; |
| import org.eclipse.gmf.examples.runtime.diagram.logic.internal.util.StringConstants; |
| import org.eclipse.gmf.runtime.common.core.command.CommandResult; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart; |
| import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand; |
| import org.eclipse.gmf.runtime.notation.NotationPackage; |
| import org.eclipse.gmf.runtime.notation.PropertiesSetStyle; |
| |
| /** |
| * Implementation of the command for changing ports color |
| * |
| * @author aboyko |
| * |
| */ |
| public class ModifyPortsColorCommand extends AbstractTransactionalCommand { |
| |
| private IGraphicalEditPart ep; |
| private Integer color; |
| |
| public ModifyPortsColorCommand(TransactionalEditingDomain editingDomain, |
| IGraphicalEditPart ep, Integer color) { |
| super(editingDomain, "Modify Ports Color", null); //$NON-NLS-1$ |
| this.ep = ep; |
| this.color = color; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand#doExecuteWithResult(org.eclipse.core.runtime.IProgressMonitor, |
| * org.eclipse.core.runtime.IAdaptable) |
| */ |
| protected CommandResult doExecuteWithResult(IProgressMonitor monitor, |
| IAdaptable info) throws ExecutionException { |
| List ports = getPorts(); |
| if (ports != null && color != null && !ports.isEmpty()) { |
| PropertiesSetStyle style = (PropertiesSetStyle) ep |
| .getNotationView().getNamedStyle( |
| NotationPackage.eINSTANCE.getPropertiesSetStyle(), |
| StringConstants.PORTS_PROPERTIES_STYLE_NAME); |
| if (style != null) { |
| if (style |
| .hasProperty(StringConstants.PORTS_COLOR_PROPERTY_NAME)) { |
| style.setProperty( |
| StringConstants.PORTS_COLOR_PROPERTY_NAME, color); |
| return CommandResult.newOKCommandResult(); |
| } |
| } |
| } |
| return CommandResult.newCancelledCommandResult(); |
| } |
| |
| private List getPorts() { |
| List ports = new LinkedList(); |
| for (Iterator itr = ep.getChildren().iterator(); itr.hasNext();) { |
| Object obj = itr.next(); |
| if (obj instanceof TerminalEditPart) { |
| ports.add(obj); |
| } |
| } |
| return ports; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.core.commands.operations.AbstractOperation#canExecute() |
| */ |
| public boolean canExecute() { |
| if (ep.getNotationView() != null) { |
| if (ep.getNotationView().getNamedStyle( |
| NotationPackage.eINSTANCE.getPropertiesSetStyle(), |
| StringConstants.PORTS_PROPERTIES_STYLE_NAME) != null) { |
| List ports = getPorts(); |
| return ports != null && !ports.isEmpty() && super.canExecute(); |
| } |
| } |
| return false; |
| } |
| |
| } |