1 files changed, 397 insertions, 397 deletions
diff --git a/plugins/org.eclipse.emf.cdo.dawn.gmf/src/org/eclipse/emf/cdo/dawn/gmf/util/DawnDiagramUpdater.java b/plugins/org.eclipse.emf.cdo.dawn.gmf/src/org/eclipse/emf/cdo/dawn/gmf/util/DawnDiagramUpdater.java
index cf41dedab1..bbe1638cb8 100644
--- a/plugins/org.eclipse.emf.cdo.dawn.gmf/src/org/eclipse/emf/cdo/dawn/gmf/util/DawnDiagramUpdater.java
+++ b/plugins/org.eclipse.emf.cdo.dawn.gmf/src/org/eclipse/emf/cdo/dawn/gmf/util/DawnDiagramUpdater.java
@@ -1,397 +1,397 @@
-/*
- * Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) 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:
- *     Martin Fluegge - initial API and implementation
- */
-package org.eclipse.emf.cdo.dawn.gmf.util;
-
-import org.eclipse.emf.cdo.dawn.internal.util.bundle.OM;
-
-import org.eclipse.net4j.util.om.trace.ContextTracer;
-
-import org.eclipse.emf.ecore.EObject;
-import org.eclipse.emf.ecore.util.ECrossReferenceAdapter;
-import org.eclipse.emf.transaction.RecordingCommand;
-import org.eclipse.emf.transaction.TransactionalEditingDomain;
-
-import org.eclipse.gef.EditPart;
-import org.eclipse.gef.EditPartViewer;
-import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
-import org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart;
-import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;
-import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
-import org.eclipse.gmf.runtime.diagram.ui.editpolicies.CanonicalEditPolicy;
-import org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.DiagramDocumentEditor;
-import org.eclipse.gmf.runtime.diagram.ui.services.editpart.EditPartService;
-import org.eclipse.gmf.runtime.emf.core.util.CrossReferenceAdapter;
-import org.eclipse.gmf.runtime.notation.Diagram;
-import org.eclipse.gmf.runtime.notation.Edge;
-import org.eclipse.gmf.runtime.notation.NotationPackage;
-import org.eclipse.gmf.runtime.notation.View;
-import org.eclipse.jface.viewers.ISelection;
-import org.eclipse.jface.viewers.IStructuredSelection;
-import org.eclipse.ui.PlatformUI;
-
-import java.util.Collection;
-import java.util.Iterator;
-import java.util.List;
-
-/**
- * @author Martin Fluegge
- */
-public class DawnDiagramUpdater
-{
-  private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG, DawnDiagramUpdater.class);
-
-  public static void refresh(final IGraphicalEditPart editPart)
-  {
-    TransactionalEditingDomain editingDomain = editPart.getEditingDomain();
-    editingDomain.getCommandStack().execute(new RecordingCommand(editingDomain)
-    {
-      @Override
-      public void doExecute()
-      {
-        editPart.refresh();
-
-        if (editPart instanceof ConnectionEditPart)
-        {
-          DawnDiagramUpdater.refresh((IGraphicalEditPart)((ConnectionEditPart)editPart).getTarget());
-          DawnDiagramUpdater.refresh((IGraphicalEditPart)((ConnectionEditPart)editPart).getSource());
-        }
-      }
-    });
-  }
-
-  public static void refreshEditPart(EditPart editPart)
-  {
-    refeshEditpartInternal(editPart);
-  }
-
-  public static void refreshEditPart(final EditPart editPart, DiagramDocumentEditor editor)
-  {
-    try
-    {
-      editor.getEditingDomain().runExclusive(new Runnable()
-      {
-        public void run()
-        {
-          DawnDiagramUpdater.refreshEditPart(editPart);
-        }
-      });
-    }
-    catch (InterruptedException ex)
-    {
-      throw new RuntimeException(ex);
-    }
-  }
-
-  public static void refreshEditCurrentSelected(TransactionalEditingDomain editingDomain)
-  {
-    editingDomain.getCommandStack().execute(new RecordingCommand(editingDomain)
-    {
-
-      @Override
-      protected void doExecute()
-      {
-        // ((ExamplediagramDocumentProvider)getDocumentProvider()).changed(getEditorInput());
-        ISelection selection = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService()
-            .getSelection();
-        if (selection instanceof IStructuredSelection)
-        {
-          IStructuredSelection structuredSelection = (IStructuredSelection)selection;
-          if (structuredSelection.size() != 1)
-          {
-            return;
-          }
-          if (structuredSelection.getFirstElement() instanceof EditPart
-              && ((EditPart)structuredSelection.getFirstElement()).getModel() instanceof View)
-          {
-            EObject modelElement = ((View)((EditPart)structuredSelection.getFirstElement()).getModel()).getElement();
-            List<?> editPolicies = CanonicalEditPolicy.getRegisteredEditPolicies(modelElement);
-            for (Iterator<?> it = editPolicies.iterator(); it.hasNext();)
-            {
-              CanonicalEditPolicy nextEditPolicy = (CanonicalEditPolicy)it.next();
-              nextEditPolicy.refresh();
-            }
-          }
-        }
-      }
-    });
-  }
-
-  private static void refeshEditpartInternal(EditPart editPart)
-  {
-    if (editPart != null)
-    {
-      try
-      {
-
-        // EObject modelElement = ((View)(editPart).getModel()).getElement();
-        // List editPolicies = CanonicalEditPolicy.getRegisteredEditPolicies(modelElement);
-        // for (Iterator it = editPolicies.iterator(); it.hasNext();)
-        // {
-        // CanonicalEditPolicy nextEditPolicy = (CanonicalEditPolicy)it.next();
-        // nextEditPolicy.refresh();
-        // }
-
-        editPart.refresh();
-      }
-      catch (Exception e)
-      {
-        e.printStackTrace();
-      }
-
-      if (editPart instanceof DiagramEditPart)
-      {
-        for (Object connectionEditPart : ((DiagramEditPart)editPart).getConnections())
-        {
-          if (connectionEditPart instanceof EditPart)
-          {
-            if (((Edge)((EditPart)connectionEditPart).getModel()).getBendpoints() != null)
-            {
-              refeshEditpartInternal((EditPart)connectionEditPart);
-            }
-          }
-        }
-      }
-
-      for (Object childEditPart : editPart.getChildren())
-      {
-        if (childEditPart instanceof EditPart)
-        {
-          refeshEditpartInternal((EditPart)childEditPart);
-        }
-      }
-    }
-  }
-
-  public static View findViewByContainer(EObject element)
-  {
-    if (element instanceof View)
-    {
-      return (View)element;
-    }
-
-    if (element.eContainer() == null)
-    {
-      return null;
-    }
-
-    if (element.eContainer() instanceof View)
-    {
-      return (View)element.eContainer();
-    }
-
-    return findViewByContainer(element.eContainer());
-  }
-
-  public static View findViewForModel(EObject object, DiagramDocumentEditor editor)
-  {
-    if (object == null)
-    {
-      return null;
-    }
-    for (EObject e : editor.getDiagram().eContents())
-    {
-      if (e instanceof View)
-      {
-        View view = (View)e;
-        if (object.equals(view.getElement()))
-        {
-          if (TRACER.isEnabled())
-          {
-            TRACER.format("FOUND View: {0} for view obj: {1} ", e, object); //$NON-NLS-1$
-          }
-        }
-        return (View)e;
-      }
-    }
-    return null;
-  }
-
-  public static View getViewFromObject(EObject element, DiagramDocumentEditor editor)
-  {
-    View view;
-
-    if (element instanceof Diagram)
-    {
-      view = ViewUtil.getViewContainer(element);
-      return view;
-    }
-
-    if (element instanceof View)
-    {
-      view = (View)element;
-    }
-    else
-    {
-      view = DawnDiagramUpdater.findViewByContainer(element); // something which is not view (Edge or Node)
-      if (view == null)
-      {
-        view = DawnDiagramUpdater.findViewForModel(element, editor);
-      }
-    }
-    return view;
-  }
-
-  public static EditPart createOrFindEditPartIfViewExists(View view, DiagramDocumentEditor editor)
-  {
-    EditPart editPart = findEditPart(view, editor.getDiagramEditPart());
-
-    if (view != null)
-    {
-      if (editPart == null) // does not exist?
-      {
-        if (TRACER.isEnabled())
-        {
-          TRACER.format("EditPart does not exist for view  {0} ", view); //$NON-NLS-1$
-        }
-        editPart = EditPartService.getInstance().createGraphicEditPart(view);
-        setParentEditPart(editor, view, editPart);
-      }
-    }
-    if (TRACER.isEnabled())
-    {
-      TRACER.format("Found EditPart:  {0} ", editPart); //$NON-NLS-1$
-    }
-    return editPart;
-  }
-
-  public static void setParentEditPart(final DiagramDocumentEditor editor, View view, EditPart editPart)
-  {
-    View viewParent = (View)view.eContainer();
-    EditPart parentEditPart = findEditPart(viewParent, editor);
-    if (parentEditPart == null)
-    {
-      parentEditPart = editor.getDiagramEditPart();
-    }
-    editPart.setParent(parentEditPart);
-  }
-
-  public static EditPart findEditPart(View view, DiagramDocumentEditor dawnDiagramEditor)
-  {
-    DiagramEditPart diagramEditPart = dawnDiagramEditor.getDiagramEditPart();
-
-    for (Object e : diagramEditPart.getChildren())
-    {
-      EditPart ep = (EditPart)e;
-      if (ep.getModel().equals(view))
-      {
-        return ep;
-      }
-    }
-
-    for (Object e : diagramEditPart.getConnections())
-    {
-      EditPart ep = (EditPart)e;
-      if (ep.getModel().equals(view))
-      {
-        return ep;
-      }
-    }
-    return null;
-  }
-
-  public static EditPart findEditPart(View view, EditPart editPart)
-  {
-    EditPart ret;
-
-    if (editPart.getModel().equals(view))
-    {
-      return editPart;
-    }
-
-    for (Object o : editPart.getChildren())
-    {
-      EditPart child = (EditPart)o;
-      ret = findEditPart(view, child);
-      if (ret != null)
-      {
-        return ret;
-      }
-    }
-
-    if (editPart instanceof DiagramEditPart)
-    {
-      for (Object o : ((DiagramEditPart)editPart).getConnections())
-      {
-        EditPart child = (EditPart)o;
-        ret = findEditPart(view, child);
-        if (ret != null)
-        {
-          return ret;
-        }
-      }
-    }
-    return null;
-  }
-
-  public static EditPart findEditPart(View view, EditPartViewer viewer)
-  {
-    return (EditPart)viewer.getEditPartRegistry().get(view);
-  }
-
-  /**
-   * In a normal GMF environment the diagram is loaded from a xml resource. In this scenario the XMLHelper sets "null"
-   * to the element of edge. Thus the value is 'set' with a null value. We do not have this in our case because the
-   * element is carefully loaded from the CDO repository. But if the value is not set a getElement() call fills the
-   * element with the eContainer. See <b>org.eclipse.gmf.runtime.notation.impl.ViewImpl.isSetElement()</b>. This happens
-   * when the ConnectionEditPart is activated and the model registered. See
-   * <b>org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart.registerModel()</b>
-   * <p>
-   * In our scenario the Edges will be wrongly connected to the diagram itself, which makes the CanonicalEditingPolicy
-   * to remove and restore the edge. Long, short story, we must 'touch' the elements here to have the element set.
-   * 
-   * @param diagram
-   */
-  public static void initializeElement(Diagram diagram)
-  {
-    for (Object obj : diagram.getEdges())
-    {
-      Edge edge = (Edge)obj;
-      if (!edge.isSetElement())
-      {
-        boolean eDeliver = edge.eDeliver();
-        edge.eSetDeliver(false);
-        edge.setElement(null);
-        edge.eSetDeliver(eDeliver);
-      }
-    }
-  }
-
-  public static View findViewFromCrossReferences(EObject element)
-  {
-    CrossReferenceAdapter crossreferenceAdapter = (CrossReferenceAdapter)ECrossReferenceAdapter
-        .getCrossReferenceAdapter(element);// getCrossReferenceAdapter(element);
-    if (crossreferenceAdapter != null)
-    {
-      Collection<?> iinverseReferences = crossreferenceAdapter.getInverseReferencers(element,
-          NotationPackage.eINSTANCE.getView_Element(), null);
-
-      for (Object f : iinverseReferences)
-      {
-        if (f instanceof View)
-        {
-          return (View)f;
-        }
-      }
-    }
-    return null;
-  }
-
-  public static View findView(EObject element)
-  {
-    View view = DawnDiagramUpdater.findViewByContainer(element);
-
-    if (view == null)
-    {
-      view = DawnDiagramUpdater.findViewFromCrossReferences(element);
-    }
-    return view;
-  }
-}
+/*
+ * Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) 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:
+ *     Martin Fluegge - initial API and implementation
+ */
+package org.eclipse.emf.cdo.dawn.gmf.util;
+
+import org.eclipse.emf.cdo.dawn.internal.util.bundle.OM;
+
+import org.eclipse.net4j.util.om.trace.ContextTracer;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.util.ECrossReferenceAdapter;
+import org.eclipse.emf.transaction.RecordingCommand;
+import org.eclipse.emf.transaction.TransactionalEditingDomain;
+
+import org.eclipse.gef.EditPart;
+import org.eclipse.gef.EditPartViewer;
+import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
+import org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart;
+import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;
+import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
+import org.eclipse.gmf.runtime.diagram.ui.editpolicies.CanonicalEditPolicy;
+import org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.DiagramDocumentEditor;
+import org.eclipse.gmf.runtime.diagram.ui.services.editpart.EditPartService;
+import org.eclipse.gmf.runtime.emf.core.util.CrossReferenceAdapter;
+import org.eclipse.gmf.runtime.notation.Diagram;
+import org.eclipse.gmf.runtime.notation.Edge;
+import org.eclipse.gmf.runtime.notation.NotationPackage;
+import org.eclipse.gmf.runtime.notation.View;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.ui.PlatformUI;
+
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * @author Martin Fluegge
+ */
+public class DawnDiagramUpdater
+{
+  private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG, DawnDiagramUpdater.class);
+
+  public static void refresh(final IGraphicalEditPart editPart)
+  {
+    TransactionalEditingDomain editingDomain = editPart.getEditingDomain();
+    editingDomain.getCommandStack().execute(new RecordingCommand(editingDomain)
+    {
+      @Override
+      public void doExecute()
+      {
+        editPart.refresh();
+
+        if (editPart instanceof ConnectionEditPart)
+        {
+          DawnDiagramUpdater.refresh((IGraphicalEditPart)((ConnectionEditPart)editPart).getTarget());
+          DawnDiagramUpdater.refresh((IGraphicalEditPart)((ConnectionEditPart)editPart).getSource());
+        }
+      }
+    });
+  }
+
+  public static void refreshEditPart(EditPart editPart)
+  {
+    refeshEditpartInternal(editPart);
+  }
+
+  public static void refreshEditPart(final EditPart editPart, DiagramDocumentEditor editor)
+  {
+    try
+    {
+      editor.getEditingDomain().runExclusive(new Runnable()
+      {
+        public void run()
+        {
+          DawnDiagramUpdater.refreshEditPart(editPart);
+        }
+      });
+    }
+    catch (InterruptedException ex)
+    {
+      throw new RuntimeException(ex);
+    }
+  }
+
+  public static void refreshEditCurrentSelected(TransactionalEditingDomain editingDomain)
+  {
+    editingDomain.getCommandStack().execute(new RecordingCommand(editingDomain)
+    {
+
+      @Override
+      protected void doExecute()
+      {
+        // ((ExamplediagramDocumentProvider)getDocumentProvider()).changed(getEditorInput());
+        ISelection selection = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService()
+            .getSelection();
+        if (selection instanceof IStructuredSelection)
+        {
+          IStructuredSelection structuredSelection = (IStructuredSelection)selection;
+          if (structuredSelection.size() != 1)
+          {
+            return;
+          }
+          if (structuredSelection.getFirstElement() instanceof EditPart
+              && ((EditPart)structuredSelection.getFirstElement()).getModel() instanceof View)
+          {
+            EObject modelElement = ((View)((EditPart)structuredSelection.getFirstElement()).getModel()).getElement();
+            List<?> editPolicies = CanonicalEditPolicy.getRegisteredEditPolicies(modelElement);
+            for (Iterator<?> it = editPolicies.iterator(); it.hasNext();)
+            {
+              CanonicalEditPolicy nextEditPolicy = (CanonicalEditPolicy)it.next();
+              nextEditPolicy.refresh();
+            }
+          }
+        }
+      }
+    });
+  }
+
+  private static void refeshEditpartInternal(EditPart editPart)
+  {
+    if (editPart != null)
+    {
+      try
+      {
+
+        // EObject modelElement = ((View)(editPart).getModel()).getElement();
+        // List editPolicies = CanonicalEditPolicy.getRegisteredEditPolicies(modelElement);
+        // for (Iterator it = editPolicies.iterator(); it.hasNext();)
+        // {
+        // CanonicalEditPolicy nextEditPolicy = (CanonicalEditPolicy)it.next();
+        // nextEditPolicy.refresh();
+        // }
+
+        editPart.refresh();
+      }
+      catch (Exception e)
+      {
+        e.printStackTrace();
+      }
+
+      if (editPart instanceof DiagramEditPart)
+      {
+        for (Object connectionEditPart : ((DiagramEditPart)editPart).getConnections())
+        {
+          if (connectionEditPart instanceof EditPart)
+          {
+            if (((Edge)((EditPart)connectionEditPart).getModel()).getBendpoints() != null)
+            {
+              refeshEditpartInternal((EditPart)connectionEditPart);
+            }
+          }
+        }
+      }
+
+      for (Object childEditPart : editPart.getChildren())
+      {
+        if (childEditPart instanceof EditPart)
+        {
+          refeshEditpartInternal((EditPart)childEditPart);
+        }
+      }
+    }
+  }
+
+  public static View findViewByContainer(EObject element)
+  {
+    if (element instanceof View)
+    {
+      return (View)element;
+    }
+
+    if (element.eContainer() == null)
+    {
+      return null;
+    }
+
+    if (element.eContainer() instanceof View)
+    {
+      return (View)element.eContainer();
+    }
+
+    return findViewByContainer(element.eContainer());
+  }
+
+  public static View findViewForModel(EObject object, DiagramDocumentEditor editor)
+  {
+    if (object == null)
+    {
+      return null;
+    }
+    for (EObject e : editor.getDiagram().eContents())
+    {
+      if (e instanceof View)
+      {
+        View view = (View)e;
+        if (object.equals(view.getElement()))
+        {
+          if (TRACER.isEnabled())
+          {
+            TRACER.format("FOUND View: {0} for view obj: {1} ", e, object); //$NON-NLS-1$
+          }
+        }
+        return (View)e;
+      }
+    }
+    return null;
+  }
+
+  public static View getViewFromObject(EObject element, DiagramDocumentEditor editor)
+  {
+    View view;
+
+    if (element instanceof Diagram)
+    {
+      view = ViewUtil.getViewContainer(element);
+      return view;
+    }
+
+    if (element instanceof View)
+    {
+      view = (View)element;
+    }
+    else
+    {
+      view = DawnDiagramUpdater.findViewByContainer(element); // something which is not view (Edge or Node)
+      if (view == null)
+      {
+        view = DawnDiagramUpdater.findViewForModel(element, editor);
+      }
+    }
+    return view;
+  }
+
+  public static EditPart createOrFindEditPartIfViewExists(View view, DiagramDocumentEditor editor)
+  {
+    EditPart editPart = findEditPart(view, editor.getDiagramEditPart());
+
+    if (view != null)
+    {
+      if (editPart == null) // does not exist?
+      {
+        if (TRACER.isEnabled())
+        {
+          TRACER.format("EditPart does not exist for view  {0} ", view); //$NON-NLS-1$
+        }
+        editPart = EditPartService.getInstance().createGraphicEditPart(view);
+        setParentEditPart(editor, view, editPart);
+      }
+    }
+    if (TRACER.isEnabled())
+    {
+      TRACER.format("Found EditPart:  {0} ", editPart); //$NON-NLS-1$
+    }
+    return editPart;
+  }
+
+  public static void setParentEditPart(final DiagramDocumentEditor editor, View view, EditPart editPart)
+  {
+    View viewParent = (View)view.eContainer();
+    EditPart parentEditPart = findEditPart(viewParent, editor);
+    if (parentEditPart == null)
+    {
+      parentEditPart = editor.getDiagramEditPart();
+    }
+    editPart.setParent(parentEditPart);
+  }
+
+  public static EditPart findEditPart(View view, DiagramDocumentEditor dawnDiagramEditor)
+  {
+    DiagramEditPart diagramEditPart = dawnDiagramEditor.getDiagramEditPart();
+
+    for (Object e : diagramEditPart.getChildren())
+    {
+      EditPart ep = (EditPart)e;
+      if (ep.getModel().equals(view))
+      {
+        return ep;
+      }
+    }
+
+    for (Object e : diagramEditPart.getConnections())
+    {
+      EditPart ep = (EditPart)e;
+      if (ep.getModel().equals(view))
+      {
+        return ep;
+      }
+    }
+    return null;
+  }
+
+  public static EditPart findEditPart(View view, EditPart editPart)
+  {
+    EditPart ret;
+
+    if (editPart.getModel().equals(view))
+    {
+      return editPart;
+    }
+
+    for (Object o : editPart.getChildren())
+    {
+      EditPart child = (EditPart)o;
+      ret = findEditPart(view, child);
+      if (ret != null)
+      {
+        return ret;
+      }
+    }
+
+    if (editPart instanceof DiagramEditPart)
+    {
+      for (Object o : ((DiagramEditPart)editPart).getConnections())
+      {
+        EditPart child = (EditPart)o;
+        ret = findEditPart(view, child);
+        if (ret != null)
+        {
+          return ret;
+        }
+      }
+    }
+    return null;
+  }
+
+  public static EditPart findEditPart(View view, EditPartViewer viewer)
+  {
+    return (EditPart)viewer.getEditPartRegistry().get(view);
+  }
+
+  /**
+   * In a normal GMF environment the diagram is loaded from a xml resource. In this scenario the XMLHelper sets "null"
+   * to the element of edge. Thus the value is 'set' with a null value. We do not have this in our case because the
+   * element is carefully loaded from the CDO repository. But if the value is not set a getElement() call fills the
+   * element with the eContainer. See <b>org.eclipse.gmf.runtime.notation.impl.ViewImpl.isSetElement()</b>. This happens
+   * when the ConnectionEditPart is activated and the model registered. See
+   * <b>org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart.registerModel()</b>
+   * <p>
+   * In our scenario the Edges will be wrongly connected to the diagram itself, which makes the CanonicalEditingPolicy
+   * to remove and restore the edge. Long, short story, we must 'touch' the elements here to have the element set.
+   * 
+   * @param diagram
+   */
+  public static void initializeElement(Diagram diagram)
+  {
+    for (Object obj : diagram.getEdges())
+    {
+      Edge edge = (Edge)obj;
+      if (!edge.isSetElement())
+      {
+        boolean eDeliver = edge.eDeliver();
+        edge.eSetDeliver(false);
+        edge.setElement(null);
+        edge.eSetDeliver(eDeliver);
+      }
+    }
+  }
+
+  public static View findViewFromCrossReferences(EObject element)
+  {
+    CrossReferenceAdapter crossreferenceAdapter = (CrossReferenceAdapter)ECrossReferenceAdapter
+        .getCrossReferenceAdapter(element);// getCrossReferenceAdapter(element);
+    if (crossreferenceAdapter != null)
+    {
+      Collection<?> iinverseReferences = crossreferenceAdapter.getInverseReferencers(element,
+          NotationPackage.eINSTANCE.getView_Element(), null);
+
+      for (Object f : iinverseReferences)
+      {
+        if (f instanceof View)
+        {
+          return (View)f;
+        }
+      }
+    }
+    return null;
+  }
+
+  public static View findView(EObject element)
+  {
+    View view = DawnDiagramUpdater.findViewByContainer(element);
+
+    if (view == null)
+    {
+      view = DawnDiagramUpdater.findViewFromCrossReferences(element);
+    }
+    return view;
+  }
+}