Bug 423666 - Show All Related Link can display erroneous connectors in

multi-level IBDs 

A connector with multiple view is now correctly redraw.

Change-Id: I1217f946c8310a17aea46dc374f9b6b3a4984cf1
Signed-off-by: Benoit Maggi <benoit.maggi@cea.fr>

1 files changed, 268 insertions, 268 deletions

diff --git a/plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.common/src/org/eclipse/papyrus/uml/diagram/common/editpolicies/AbstractUMLShowHideRelatedLinkEditPolicy.java b/plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.common/src/org/eclipse/papyrus/uml/diagram/common/editpolicies/AbstractUMLShowHideRelatedLinkEditPolicy.java
index 1d95e904c3b..3cc7b3b8870 100644
--- a/plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.common/src/org/eclipse/papyrus/uml/diagram/common/editpolicies/AbstractUMLShowHideRelatedLinkEditPolicy.java
+++ b/plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.common/src/org/eclipse/papyrus/uml/diagram/common/editpolicies/AbstractUMLShowHideRelatedLinkEditPolicy.java
@@ -1,268 +1,268 @@
-/*****************************************************************************

- * Copyright (c) 2013 CEA LIST.

- *

- *    

- * 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:

- *  Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation

- *

- *****************************************************************************/

-package org.eclipse.papyrus.uml.diagram.common.editpolicies;

-

-import java.util.ArrayList;

-import java.util.Arrays;

-import java.util.Collection;

-import java.util.Collections;

-import java.util.HashMap;

-import java.util.Iterator;

-import java.util.Map;

-import java.util.Set;

-

-import org.eclipse.core.commands.ExecutionException;

-import org.eclipse.core.runtime.IAdaptable;

-import org.eclipse.core.runtime.IProgressMonitor;

-import org.eclipse.emf.ecore.EObject;

-import org.eclipse.emf.transaction.TransactionalEditingDomain;

-import org.eclipse.gef.EditPart;

-import org.eclipse.gef.commands.Command;

-import org.eclipse.gmf.runtime.common.core.command.CommandResult;

-import org.eclipse.gmf.runtime.common.core.command.CompositeCommand;

-import org.eclipse.gmf.runtime.common.core.command.ICommand;

-import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;

-import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;

-import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;

-import org.eclipse.gmf.runtime.notation.View;

-import org.eclipse.gmf.tooling.runtime.update.UpdaterLinkDescriptor;

-import org.eclipse.jface.viewers.ILabelProvider;

-import org.eclipse.jface.window.Window;

-import org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.AbstractShowHideRelatedLinkEditPolicy;

-import org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.EdgeWithNoSemanticElementRepresentationImpl;

-import org.eclipse.papyrus.uml.diagram.common.helper.LinkMappingHelper;

-import org.eclipse.papyrus.uml.diagram.common.ui.dialogs.ShowHideRelatedLinkSelectionDialog;

-import org.eclipse.papyrus.uml.diagram.common.util.LinkEndsMapper;

-import org.eclipse.papyrus.uml.tools.providers.UMLLabelProvider;

-import org.eclipse.swt.widgets.Display;

-import org.eclipse.uml2.uml.Comment;

-import org.eclipse.uml2.uml.Connector;

-import org.eclipse.uml2.uml.Constraint;

-import org.eclipse.uml2.uml.DirectedRelationship;

-import org.eclipse.uml2.uml.Element;

-import org.eclipse.uml2.uml.Relationship;

-

-

-/**

- * 

- * Abstract class used to show hide related links on UML Diagram

- * 

- */

-public abstract class AbstractUMLShowHideRelatedLinkEditPolicy extends AbstractShowHideRelatedLinkEditPolicy {

-

-

-	/**

-	 * 

-	 * Constructor.

-	 * 

-	 * @param host

-	 *        the host for this edit policy

-	 */

-	public AbstractUMLShowHideRelatedLinkEditPolicy(final DiagramEditPart host) {

-		super(host);

-	}

-

-

-	/**

-	 * 

-	 * @see org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.AbstractShowHideRelatedLinkEditPolicy#getShowHideRelatedLinkCommandWithDialog(java.util.Collection,

-	 *      java.util.Map, java.util.Set, java.util.Map, java.util.Collection)

-	 * 

-	 * @param selectedEditParts

-	 * @param availableLinks

-	 * @param visibleLinks

-	 * @param domain2NotationMap

-	 * @param linksDescriptors

-	 * @return

-	 *         the command which open a dialog to ask for the user to select visible links, chained with the command to show/hide the links according

-	 *         to the user selection

-	 */

-	@Override

-	protected Command getShowHideRelatedLinkCommandWithDialog(final Collection<EditPart> selectedEditParts, final Map<EditPart, Set<EObject>> availableLinks, final Set<EObject> visibleLinks, final Map<EObject, View> domain2NotationMap, final Collection<UpdaterLinkDescriptor> linksDescriptors) {

-		//0. build the mapping between semantic link and their representations used in the dialog

-		final Map<EObject, LinkEndsMapper> linkMapping = new HashMap<EObject, LinkEndsMapper>();

-		final Iterator<UpdaterLinkDescriptor> iter = linksDescriptors.iterator();

-		while(iter.hasNext()) {

-			final UpdaterLinkDescriptor current = iter.next();

-			final EObject link = current.getModelElement();

-			if(link instanceof Element) {

-				linkMapping.put(link, createLinkEndMapper((Element)link, current));

-			} else if(link instanceof EdgeWithNoSemanticElementRepresentationImpl) {

-				final EObject source = ((EdgeWithNoSemanticElementRepresentationImpl)link).getSource();

-				if(source instanceof Comment || source instanceof Constraint) {

-					linkMapping.put(link, createLinkEndMapper((Element)source, current));

-				}

-			}

-		}

-

-		final TransactionalEditingDomain domain = getEditingDomain();

-		final CompositeCommand compositeCommand = new CompositeCommand("Show/Hide Related Link Command"); //$NON-NLS-1$

-		final ICommand cmd = getOpenDialogCommand(domain, selectedEditParts, availableLinks, visibleLinks, linkMapping);

-		compositeCommand.add(cmd);

-		compositeCommand.add(getComputeCommandResultCommand(domain, cmd, visibleLinks, domain2NotationMap, linksDescriptors));

-		return new ICommandProxy(compositeCommand);

-	}

-

-

-

-

-

-	/**

-	 * 

-	 * @param descriptor

-	 *        the link descriptor

-	 * @return

-	 *         the collection of link descriptors without some invalid descriptor (we get this case when the link doesn't have source AND target, but

-	 *         only ends)

-	 */

-	protected Collection<UpdaterLinkDescriptor> removeInvalidLinkDescriptor(final Collection<UpdaterLinkDescriptor> descriptor) {

-		final Collection<UpdaterLinkDescriptor> firstResult = super.removeInvalidLinkDescriptor(descriptor);

-		final Collection<UpdaterLinkDescriptor> result = new ArrayList<UpdaterLinkDescriptor>();

-		final Iterator<UpdaterLinkDescriptor> iter = firstResult.iterator();

-		while(iter.hasNext()) {

-			final UpdaterLinkDescriptor current = iter.next();

-			final EObject modelElement = current.getModelElement();

-

-			/*

-			 * for example, for association between Class1 and class2, we get a link descriptor between class1 and class2 BUT another one between

-			 * class1 and class1...

-			 */

-			if(!isAnOrientedLink(modelElement)) {

-				EObject src = current.getSource();

-				EObject target = current.getDestination();

-				if(src == target) {

-					final Collection<?> sources = LinkMappingHelper.getSource((Element)modelElement);

-					final Collection<?> targets = LinkMappingHelper.getTarget((Element)modelElement);

-					if(sources.size() > 1 && sources.equals(targets)) {

-						int nbOccurencesInSource = 0;

-						final Iterator<?> iterSrc = sources.iterator();

-						while(nbOccurencesInSource < 2 && iterSrc.hasNext()) {

-							if(iterSrc.next() == src) {

-								nbOccurencesInSource++;

-							}

-						}

-

-						int nbOccurencesInTarget = 0;

-						final Iterator<?> iterTarget = targets.iterator();

-						while(nbOccurencesInTarget < 2 && iterTarget.hasNext()) {

-							if(iterTarget.next() == src) {

-								nbOccurencesInTarget++;

-							}

-						}

-

-						if(nbOccurencesInSource > 1 || nbOccurencesInTarget > 1) {

-							//do nothing;

-						} else {

-							continue;//we must exclude it!

-						}

-					} else if(!(sources.contains(src) && targets.contains(src))) {

-						continue;

-					}

-				}

-			}

-			result.add(current);

-		}

-		return result;

-	}

-

-	/**

-	 * 

-	 * @return

-	 *         <code>true</code> if the link is oriented and <code>false</code> if not.

-	 *         If not, that is to say than {@link LinkMappingHelper} should returns the same values for sources and targets

-	 */

-	public static final boolean isAnOrientedLink(final EObject link) {

-		if(link instanceof DirectedRelationship) {

-			return true;

-		} else if(link instanceof Relationship) {

-			return false;

-		} else if(link instanceof Connector) {

-			return false;

-		} else if(link instanceof Comment || link instanceof Constraint) {

-			return true;

-		}

-		return false;

-	}

-

-

-

-

-	/**

-	 * 

-	 * @param element

-	 *        an element

-	 * @return

-	 *         a linkEndsMapper according to this element

-	 */

-	public static final LinkEndsMapper createLinkEndMapper(final Element element, final UpdaterLinkDescriptor descriptor) {

-		Collection<?> ends;

-		Collection<?> sources;

-		Collection<?> targets;

-		if(element instanceof Comment || element instanceof Constraint) {

-			ends = Collections.emptyList();

-			sources = Collections.singletonList(descriptor.getSource());

-			targets = Collections.singletonList(descriptor.getDestination());

-		} else if(isAnOrientedLink(element)) {

-			ends = Collections.emptyList();

-			sources = LinkMappingHelper.getSource(element);

-			targets = LinkMappingHelper.getTarget(element);

-		} else {

-			ends = LinkMappingHelper.getSource(element);

-			sources = Collections.emptyList();

-			targets = Collections.emptyList();

-		}

-		return new LinkEndsMapper(element, ends, sources, targets);

-	}

-

-	/**

-	 * 

-	 * @param domain

-	 *        the editing domain

-	 * @return

-	 *         the command to open the dialog to choose the link to show

-	 */

-	protected ICommand getOpenDialogCommand(final TransactionalEditingDomain domain, final Collection<EditPart> selectedEditPart, final Map<EditPart, Set<EObject>> availableLinks, final Collection<EObject> initialSelection, final Map<EObject, LinkEndsMapper> linkMapping) {

-		final ICommand cmd = new AbstractTransactionalCommand(domain, "Open Show/HideDialogCommand", null) {//$NON-NLS-1$

-

-			@Override

-			protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {

-				final ShowHideRelatedLinkSelectionDialog dialog = new ShowHideRelatedLinkSelectionDialog(Display.getDefault().getActiveShell(), getLabelProvider(), new AbstractShowHideRelatedLinkEditPolicy.LinkContentProvider(availableLinks), availableLinks, linkMapping);

-				dialog.setTitle("Show/Hide Links");//$NON-NLS-1$

-				dialog.setMessage("Choose the links to show.");//$NON-NLS-1$

-				dialog.setInput(selectedEditPart);

-				dialog.setInitialSelection(initialSelection);

-				dialog.setExpandedElements(selectedEditPart.toArray());

-				dialog.setContainerMode(true);

-				int status = dialog.open();

-				if(status == Window.CANCEL) {

-					return CommandResult.newCancelledCommandResult();

-				}

-				return CommandResult.newOKCommandResult(Arrays.asList(dialog.getResult()));

-			}

-		};

-

-		return cmd;

-	}

-

-	/**

-	 * 

-	 * @see org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.AbstractShowHideRelatedLinkEditPolicy#getLabelProvider()

-	 * 

-	 * @return

-	 */

-	@Override

-	protected ILabelProvider getLabelProvider() {

-		return new UMLLabelProvider();

-	}

-}

+/*****************************************************************************
+ * Copyright (c) 2013 CEA LIST.
+ *
+ *    
+ * 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:
+ *  Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
+ *
+ *****************************************************************************/
+package org.eclipse.papyrus.uml.diagram.common.editpolicies;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.transaction.TransactionalEditingDomain;
+import org.eclipse.gef.EditPart;
+import org.eclipse.gef.commands.Command;
+import org.eclipse.gmf.runtime.common.core.command.CommandResult;
+import org.eclipse.gmf.runtime.common.core.command.CompositeCommand;
+import org.eclipse.gmf.runtime.common.core.command.ICommand;
+import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
+import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;
+import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
+import org.eclipse.gmf.tooling.runtime.update.UpdaterLinkDescriptor;
+import org.eclipse.jface.viewers.ILabelProvider;
+import org.eclipse.jface.window.Window;
+import org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.AbstractShowHideRelatedLinkEditPolicy;
+import org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.EdgeWithNoSemanticElementRepresentationImpl;
+import org.eclipse.papyrus.infra.gmfdiag.common.utils.Domain2Notation;
+import org.eclipse.papyrus.uml.diagram.common.helper.LinkMappingHelper;
+import org.eclipse.papyrus.uml.diagram.common.ui.dialogs.ShowHideRelatedLinkSelectionDialog;
+import org.eclipse.papyrus.uml.diagram.common.util.LinkEndsMapper;
+import org.eclipse.papyrus.uml.tools.providers.UMLLabelProvider;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.uml2.uml.Comment;
+import org.eclipse.uml2.uml.Connector;
+import org.eclipse.uml2.uml.Constraint;
+import org.eclipse.uml2.uml.DirectedRelationship;
+import org.eclipse.uml2.uml.Element;
+import org.eclipse.uml2.uml.Relationship;
+
+
+/**
+ * 
+ * Abstract class used to show hide related links on UML Diagram
+ * 
+ */
+public abstract class AbstractUMLShowHideRelatedLinkEditPolicy extends AbstractShowHideRelatedLinkEditPolicy {
+
+
+	/**
+	 * 
+	 * Constructor.
+	 * 
+	 * @param host
+	 *        the host for this edit policy
+	 */
+	public AbstractUMLShowHideRelatedLinkEditPolicy(final DiagramEditPart host) {
+		super(host);
+	}
+
+
+	/**
+	 * 
+	 * @see org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.AbstractShowHideRelatedLinkEditPolicy#getShowHideRelatedLinkCommandWithDialog(java.util.Collection,
+	 *      java.util.Map, java.util.Set, java.util.Map, java.util.Collection)
+	 * 
+	 * @param selectedEditParts
+	 * @param availableLinks
+	 * @param visibleLinks
+	 * @param domain2NotationMap
+	 * @param linksDescriptors
+	 * @return
+	 *         the command which open a dialog to ask for the user to select visible links, chained with the command to show/hide the links according
+	 *         to the user selection
+	 */
+	@Override
+	protected Command getShowHideRelatedLinkCommandWithDialog(final Collection<EditPart> selectedEditParts, final Map<EditPart, Set<EObject>> availableLinks, final Set<EObject> visibleLinks, final Domain2Notation domain2NotationMap, final Collection<UpdaterLinkDescriptor> linksDescriptors) {
+		//0. build the mapping between semantic link and their representations used in the dialog
+		final Map<EObject, LinkEndsMapper> linkMapping = new HashMap<EObject, LinkEndsMapper>();
+		final Iterator<UpdaterLinkDescriptor> iter = linksDescriptors.iterator();
+		while(iter.hasNext()) {
+			final UpdaterLinkDescriptor current = iter.next();
+			final EObject link = current.getModelElement();
+			if(link instanceof Element) {
+				linkMapping.put(link, createLinkEndMapper((Element)link, current));
+			} else if(link instanceof EdgeWithNoSemanticElementRepresentationImpl) {
+				final EObject source = ((EdgeWithNoSemanticElementRepresentationImpl)link).getSource();
+				if(source instanceof Comment || source instanceof Constraint) {
+					linkMapping.put(link, createLinkEndMapper((Element)source, current));
+				}
+			}
+		}
+
+		final TransactionalEditingDomain domain = getEditingDomain();
+		final CompositeCommand compositeCommand = new CompositeCommand("Show/Hide Related Link Command"); //$NON-NLS-1$
+		final ICommand cmd = getOpenDialogCommand(domain, selectedEditParts, availableLinks, visibleLinks, linkMapping);
+		compositeCommand.add(cmd);
+		compositeCommand.add(getComputeCommandResultCommand(domain, cmd, visibleLinks, domain2NotationMap, linksDescriptors));
+		return new ICommandProxy(compositeCommand);
+	}
+
+
+
+
+
+	/**
+	 * 
+	 * @param descriptor
+	 *        the link descriptor
+	 * @return
+	 *         the collection of link descriptors without some invalid descriptor (we get this case when the link doesn't have source AND target, but
+	 *         only ends)
+	 */
+	protected Collection<UpdaterLinkDescriptor> removeInvalidLinkDescriptor(final Collection<UpdaterLinkDescriptor> descriptor) {
+		final Collection<UpdaterLinkDescriptor> firstResult = super.removeInvalidLinkDescriptor(descriptor);
+		final Collection<UpdaterLinkDescriptor> result = new ArrayList<UpdaterLinkDescriptor>();
+		final Iterator<UpdaterLinkDescriptor> iter = firstResult.iterator();
+		while(iter.hasNext()) {
+			final UpdaterLinkDescriptor current = iter.next();
+			final EObject modelElement = current.getModelElement();
+
+			/*
+			 * for example, for association between Class1 and class2, we get a link descriptor between class1 and class2 BUT another one between
+			 * class1 and class1...
+			 */
+			if(!isAnOrientedLink(modelElement)) {
+				EObject src = current.getSource();
+				EObject target = current.getDestination();
+				if(src == target) {
+					final Collection<?> sources = LinkMappingHelper.getSource((Element)modelElement);
+					final Collection<?> targets = LinkMappingHelper.getTarget((Element)modelElement);
+					if(sources.size() > 1 && sources.equals(targets)) {
+						int nbOccurencesInSource = 0;
+						final Iterator<?> iterSrc = sources.iterator();
+						while(nbOccurencesInSource < 2 && iterSrc.hasNext()) {
+							if(iterSrc.next() == src) {
+								nbOccurencesInSource++;
+							}
+						}
+
+						int nbOccurencesInTarget = 0;
+						final Iterator<?> iterTarget = targets.iterator();
+						while(nbOccurencesInTarget < 2 && iterTarget.hasNext()) {
+							if(iterTarget.next() == src) {
+								nbOccurencesInTarget++;
+							}
+						}
+
+						if(nbOccurencesInSource > 1 || nbOccurencesInTarget > 1) {
+							//do nothing;
+						} else {
+							continue;//we must exclude it!
+						}
+					} else if(!(sources.contains(src) && targets.contains(src))) {
+						continue;
+					}
+				}
+			}
+			result.add(current);
+		}
+		return result;
+	}
+
+	/**
+	 * 
+	 * @return
+	 *         <code>true</code> if the link is oriented and <code>false</code> if not.
+	 *         If not, that is to say than {@link LinkMappingHelper} should returns the same values for sources and targets
+	 */
+	public static final boolean isAnOrientedLink(final EObject link) {
+		if(link instanceof DirectedRelationship) {
+			return true;
+		} else if(link instanceof Relationship) {
+			return false;
+		} else if(link instanceof Connector) {
+			return false;
+		} else if(link instanceof Comment || link instanceof Constraint) {
+			return true;
+		}
+		return false;
+	}
+
+
+
+
+	/**
+	 * 
+	 * @param element
+	 *        an element
+	 * @return
+	 *         a linkEndsMapper according to this element
+	 */
+	public static final LinkEndsMapper createLinkEndMapper(final Element element, final UpdaterLinkDescriptor descriptor) {
+		Collection<?> ends;
+		Collection<?> sources;
+		Collection<?> targets;
+		if(element instanceof Comment || element instanceof Constraint) {
+			ends = Collections.emptyList();
+			sources = Collections.singletonList(descriptor.getSource());
+			targets = Collections.singletonList(descriptor.getDestination());
+		} else if(isAnOrientedLink(element)) {
+			ends = Collections.emptyList();
+			sources = LinkMappingHelper.getSource(element);
+			targets = LinkMappingHelper.getTarget(element);
+		} else {
+			ends = LinkMappingHelper.getSource(element);
+			sources = Collections.emptyList();
+			targets = Collections.emptyList();
+		}
+		return new LinkEndsMapper(element, ends, sources, targets);
+	}
+
+	/**
+	 * 
+	 * @param domain
+	 *        the editing domain
+	 * @return
+	 *         the command to open the dialog to choose the link to show
+	 */
+	protected ICommand getOpenDialogCommand(final TransactionalEditingDomain domain, final Collection<EditPart> selectedEditPart, final Map<EditPart, Set<EObject>> availableLinks, final Collection<EObject> initialSelection, final Map<EObject, LinkEndsMapper> linkMapping) {
+		final ICommand cmd = new AbstractTransactionalCommand(domain, "Open Show/HideDialogCommand", null) {//$NON-NLS-1$
+
+			@Override
+			protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
+				final ShowHideRelatedLinkSelectionDialog dialog = new ShowHideRelatedLinkSelectionDialog(Display.getDefault().getActiveShell(), getLabelProvider(), new AbstractShowHideRelatedLinkEditPolicy.LinkContentProvider(availableLinks), availableLinks, linkMapping);
+				dialog.setTitle("Show/Hide Links");//$NON-NLS-1$
+				dialog.setMessage("Choose the links to show.");//$NON-NLS-1$
+				dialog.setInput(selectedEditPart);
+				dialog.setInitialSelection(initialSelection);
+				dialog.setExpandedElements(selectedEditPart.toArray());
+				dialog.setContainerMode(true);
+				int status = dialog.open();
+				if(status == Window.CANCEL) {
+					return CommandResult.newCancelledCommandResult();
+				}
+				return CommandResult.newOKCommandResult(Arrays.asList(dialog.getResult()));
+			}
+		};
+
+		return cmd;
+	}
+
+	/**
+	 * 
+	 * @see org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.AbstractShowHideRelatedLinkEditPolicy#getLabelProvider()
+	 * 
+	 * @return
+	 */
+	@Override
+	protected ILabelProvider getLabelProvider() {
+		return new UMLLabelProvider();
+	}
+}