| /****************************************************************************** |
| * 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.runtime.diagram.ui.internal.commands; |
| |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.emf.ecore.ENamedElement; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.gmf.runtime.common.core.command.CommandResult; |
| import org.eclipse.gmf.runtime.diagram.core.commands.SetPropertyCommand; |
| import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil; |
| import org.eclipse.gmf.runtime.diagram.ui.internal.properties.Properties; |
| import org.eclipse.gmf.runtime.emf.core.util.PackageUtil; |
| import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyElementCommand; |
| import org.eclipse.gmf.runtime.notation.Node; |
| import org.eclipse.gmf.runtime.notation.NotationFactory; |
| import org.eclipse.gmf.runtime.notation.Ratio; |
| import org.eclipse.gmf.runtime.notation.View; |
| |
| |
| /** |
| * Sets the ratio for the resizable compartment, where the default ratio is -1 |
| * This command might create/destroy the Ratio layout constraint of the compartment |
| * It will destroy it if the ratio is set to default and there is a ratio |
| * It will create it if the ratio is not default and there was no ratio |
| * otherwise it will just set the ratio's value |
| * |
| * @author melaasar |
| * @canBeSeenBy org.eclipse.gmf.runtime.diagram.ui.* |
| */ |
| public class SetCompartmentRatioCommand extends SetPropertyCommand { |
| |
| /** |
| * constructor |
| * @param editingDomain the editing domain |
| * @param viewAdapter adapter that can adapt to <code>View.class</code> |
| * @param newValue the new value of the ratio |
| */ |
| public SetCompartmentRatioCommand(TransactionalEditingDomain editingDomain, |
| IAdaptable viewAdapter, double newValue) { |
| super(editingDomain, viewAdapter, Properties.ID_RATIO, Properties.ID_RATIO, new Double(newValue)); |
| } |
| |
| protected CommandResult doExecuteWithResult( |
| IProgressMonitor progressMonitor, IAdaptable info) |
| throws ExecutionException { |
| |
| View view = (View)getViewAdapter().getAdapter(View.class); |
| if (view != null) { |
| Node node = (Node)view; |
| Ratio ratio = (Ratio) node.getLayoutConstraint(); |
| |
| if (((Double)getNewValue()).doubleValue() == -1) { |
| if (ratio != null) |
| DestroyElementCommand.destroy(ratio); |
| } else { |
| if (ratio == null) { |
| ratio = NotationFactory.eINSTANCE.createRatio(); |
| node.setLayoutConstraint(ratio); |
| } |
| if (getPropertyId() instanceof String){ |
| ENamedElement namedElement = PackageUtil.getElement((String)getPropertyId()); |
| if (namedElement instanceof EStructuralFeature) |
| ViewUtil.setStructuralFeatureValue(view,(EStructuralFeature)namedElement, getNewValue()); |
| } |
| |
| } |
| } |
| return CommandResult.newOKCommandResult(); |
| } |
| |
| } |