bundles/org.eclipse.wst.wsdl.ui/src/org/eclipse/wst/wsdl/ui/internal/graph/editparts/GroupEditPart.java - webservices/webtools.webservices - Git at Google

 /*******************************************************************************
  * Copyright (c) 2001, 2004 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.wst.wsdl.ui.internal.graph.editparts;

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;

 import org.eclipse.draw2d.ColorConstants;
 import org.eclipse.draw2d.FigureListener;
 import org.eclipse.draw2d.IFigure;
 import org.eclipse.draw2d.Label;
 import org.eclipse.draw2d.MarginBorder;
 import org.eclipse.draw2d.RectangleFigure;
 import org.eclipse.draw2d.ScrollPane;
 import org.eclipse.draw2d.Viewport;
 import org.eclipse.draw2d.ViewportLayout;
 import org.eclipse.draw2d.geometry.Dimension;
 import org.eclipse.draw2d.geometry.Rectangle;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.gef.EditPart;
 import org.eclipse.gef.LayerConstants;
 import org.eclipse.gef.editparts.AbstractGraphicalEditPart;
 import org.eclipse.gef.editparts.ScalableRootEditPart;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.wst.wsdl.Definition;
 import org.eclipse.wst.wsdl.ui.internal.gef.util.figures.RoundedLineBorder;
 import org.eclipse.wst.wsdl.ui.internal.graph.WSDLComponentViewer;
 import org.eclipse.wst.wsdl.ui.internal.model.ModelAdapter;
 import org.eclipse.wst.wsdl.ui.internal.model.WSDLGroupObject;
 import org.eclipse.wst.xsd.ui.internal.gef.util.figures.ContainerFigure;
 import org.eclipse.wst.xsd.ui.internal.gef.util.figures.ContainerLayout;
 import org.eclipse.wst.xsd.ui.internal.gef.util.figures.FillLayout;

 public class GroupEditPart extends WSDLEditPart
 {
   protected ScrollPane scrollpane;
   protected Label label;

   protected Object emphasizedModelObject;
   protected Object inputConnectionModelObject;
   protected Object outputConnectionModelObject;

   public WSDLTreeNodeEditPart emphasizedEditPart;
   public AbstractGraphicalEditPart inputConnection;
   public AbstractGraphicalEditPart outputConnection;

   public GroupEditPart nextGroupEditPart;
   public IConnectionManager connectionManager;

   protected InternalFigureListener figureListener = new InternalFigureListener();

   class InternalFigureListener implements FigureListener
   {
     public void figureMoved(IFigure source)
     {
       ScalableRootEditPart root = (ScalableRootEditPart)getViewer().getRootEditPart();
       root.getLayer(LayerConstants.CONNECTION_LAYER).repaint();
     }
   }

   public Object getEmphasizedModelObject()
   {
     return emphasizedModelObject;
   }

   public Definition getDefinition()
   {
     return ((WSDLGroupObject)getModel()).getDefinition();
   }

   //protected void setEmphasizedObject(EditPart editPart)
   //{
   //  UnknownObjectEditPart ep = null;
   //  if (editPart instanceof UnknownObjectEditPart)
   //  {
   //   ep = (UnknownObjectEditPart)editPart;
   //  }
   //
   //  if (emphasizedEditPart != null)
   //  {
   //    emphasizedEditPart.setEmphasized(false);
   //  }
   //  if (ep != null)
   //  {
   //    emphasizedEditPart = ep;
   //    emphasizedEditPart.setEmphasized(true);
   //  }
   //}

   public void setEmphasizedModelObject(Object model)
   {
     emphasizedModelObject = model;

     if (emphasizedEditPart != null)
     {
       emphasizedEditPart.setEmphasized(false);
     }

     EditPart editPart = getMatchingChildEditPart(model);
     emphasizedEditPart = (editPart instanceof WSDLTreeNodeEditPart) ? (WSDLTreeNodeEditPart)editPart : null;

     if (emphasizedEditPart != null)
     {
       emphasizedEditPart.setEmphasized(true);
     }
   }

   public void scrollToRevealEditPart(EditPart editPart)
   {
     if (editPart instanceof AbstractGraphicalEditPart)
     {
       scrollToEditPart((AbstractGraphicalEditPart)editPart);
     }
   }

   public void scrollToRevealInputConnection()
   {
     if (inputConnection != null)
     {
       scrollToEditPart(inputConnection);
     }
   }

   public void scrollToRevealOutputConnection()
   {
     if (outputConnection != null)
     {
       scrollToEditPart(outputConnection);
     }
   }

   public void setInputConnectionModelObject(Object model)
   {
     inputConnection = getMatchingChildEditPart(model);
     inputConnectionModelObject = model;
   }

   public Object getInputConnectionModelObject()
   {
     return inputConnectionModelObject;
   }

   public Object getOutputConnectionModelObject()
   {
     return outputConnectionModelObject;
   }

   public void setOutputConnectionModelObject(Object model)
   {
     outputConnection = getMatchingChildEditPart(model);
     outputConnectionModelObject = model;
   }

   protected void createConnectionManager()
   {
     switch (getType())
     {
       case WSDLGroupObject.MESSAGES_GROUP :
         {
           connectionManager = new MessagesGroupConnectionManager(this);
           break;
         }
       case WSDLGroupObject.SERVICES_GROUP :
         {
           connectionManager = new ServicesGroupConnectionManager(this);
           break;
         }
       case WSDLGroupObject.BINDINGS_GROUP :
         {
           connectionManager = new BindingsGroupConnectionManager(this);
           break;
         }
       case WSDLGroupObject.PORT_TYPES_GROUP :
         {
           connectionManager = new PortTypesGroupConnectionManager(this);
           break;
         }
     }
   }

   public IConnectionManager getConnectionManager()
   {
     return connectionManager;
   }

   public ContainerFigure outerPane;

   public IFigure createFigure()
   {
     createConnectionManager();

     outerPane = new ContainerFigure();
     outerPane.setBorder(new RoundedLineBorder(1, 6));
     outerPane.setForegroundColor(groupBorderColor);

     ContainerFigure r = new ContainerFigure();
     //r.setCornerDimensions(new Dimension(4, 4));
     r.setOutline(false);
     r.setMinimumSize(new Dimension(0, 0));

     r.setFill(true);

     r.setBackgroundColor(groupHeaderColor);
     outerPane.add(r);

     //ContainerFigure labelHolder = new ContainerFigure();
     //labelHolder.add(label);
     label = new Label();
     label.setForegroundColor(ColorConstants.black);
     label.setBorder(new MarginBorder(2, 4, 2, 4));
     r.add(label); //Holder);

     RectangleFigure line = new RectangleFigure();
     line.setPreferredSize(20, 1);
     outerPane.add(line);

     int minHeight = 250;
     switch (getType())
     {
     	case WSDLGroupObject.IMPORTS_GROUP :
 		case WSDLGroupObject.TYPES_GROUP :
 		{
 			minHeight = 50;
 			break;
 		}
 		case WSDLGroupObject.EXTENSIBILITY_ELEMENTS_GROUP :
 		{
 			minHeight = 150;
 			break;
 		}
     }

 	final int theMinHeight = minHeight;
     FillLayout outerLayout = new FillLayout()
     {
       protected Dimension calculatePreferredSize(IFigure parent, int width, int height)
       {
         Dimension d = super.calculatePreferredSize(parent, width, height);
         d.union(new Dimension(100, theMinHeight));
         return d;
       }
     };
     outerLayout.setHorizontal(false);
     //layout.setSpacing(5);
     outerPane.setLayoutManager(outerLayout);

     scrollpane = new ScrollPane();
     scrollpane.setForegroundColor(ColorConstants.black);
     scrollpane.setVerticalScrollBarVisibility(ScrollPane.AUTOMATIC); //ScrollPane.ALWAYS);
     outerPane.add(scrollpane);

     ContainerFigure pane = new ContainerFigure();
     pane.setBorder(new MarginBorder(5, 8, 5, 8));
     ContainerLayout layout = new ContainerLayout();
     layout.setHorizontal(false);
     layout.setSpacing(0);
     pane.setLayoutManager(layout);

     Viewport viewport = new Viewport();
     viewport.setContentsTracksHeight(true);
     ViewportLayout viewportLayout = new ViewportLayout()
     {
       protected Dimension calculatePreferredSize(IFigure parent, int width, int height)
       {
         Dimension d = super.calculatePreferredSize(parent, width, height);
         d.height = Math.min(d.height, theMinHeight - 25); //getViewer().getControl().getBounds().height);
         return d;
       }
     };
     viewport.setLayoutManager(viewportLayout);

     scrollpane.setViewport(viewport);
     scrollpane.setContents(pane);
     pane.addFigureListener(figureListener);

     return outerPane;
   }

   protected void refreshVisuals()
   {
     ModelAdapter adapter = getModelAdapter(getModel());
     if (adapter != null)
     {
       label.setText((String)adapter.getProperty(getModel(), ModelAdapter.LABEL_PROPERTY));
       //label.setIcon((Image)adapter.getProperty(getModel(), ModelAdapter.IMAGE_PROPERTY));
     }
     super.refreshVisuals();
   }

   protected void createEditPolicies()
   {
   }

   public IFigure getContentPane()
   {
     return scrollpane.getContents();
   }

   protected void scrollToEditPart(final AbstractGraphicalEditPart targetEditPart)
   {
     Runnable r = new Runnable()
     {
       public void run()
       {
         scrollToEditPartHelper(targetEditPart);
       }
     };
     Display.getCurrent().asyncExec(r);
   }

   protected void scrollToEditPartHelper(AbstractGraphicalEditPart targetEditPart)
   {
     if (targetEditPart != null)
     {
       Rectangle r1 = targetEditPart.getFigure().getBounds();
       Rectangle r2 = getContentPane().getBounds();
       scrollpane.scrollVerticalTo((r1.y - r2.y) - scrollpane.getBounds().height / 2);
     }
   }

   public AbstractGraphicalEditPart getMatchingChildEditPart(Object model)
   {
     List list = new ArrayList();
     for (Object o = model; o != null && !(o instanceof Definition); o = getParent(o))
     {
       list.add(0, o);
     }
     return getMatchingChildEditPart(this, list, 0, true);
   }

   protected Object getParent(Object model)
   {
     Object parent = null;
     if (model instanceof EObject)
     {
       parent = ((EObject)model).eContainer();
     }
     return parent;
   }

   protected AbstractGraphicalEditPart getMatchingChildEditPart(AbstractGraphicalEditPart editPart, List list, int index, boolean getUnexpandedParent)
   {
     AbstractGraphicalEditPart result = (getUnexpandedParent && editPart != this) ? editPart : null;
     Object model = list.size() > index ? list.get(index) : null;
     if (model != null && editPart != null)
     {
       for (Iterator i = editPart.getChildren().iterator(); i.hasNext();)
       {
         AbstractGraphicalEditPart child = (AbstractGraphicalEditPart)i.next();
         if (child.getModel() == model)
         {
           result = child;
           break;
         }
       }
       index++;
       if (index < list.size())
       {
         result = getMatchingChildEditPart(result, list, index, getUnexpandedParent);
       }
     }
     return result;
   }

   public int getType()
   {
     return ((WSDLGroupObject)getModel()).getType();
   }

   public GroupEditPart getNext()
   {
     return ((DefinitionEditPart)getParent()).getNextGroupEditPart(this);
   }

   public GroupEditPart getPrevious()
   {
     return ((DefinitionEditPart)getParent()).getPreviousGroupEditPart(this);
   }

   private void _refreshChildren()
   {
     int i;
     EditPart editPart;
     Object model;

     Map modelToEditPart = new HashMap();
     List children = getChildren();

     for (i = 0; i < children.size(); i++)
     {
       editPart = (EditPart)children.get(i);
       modelToEditPart.put(editPart.getModel(), editPart);
     }

     List modelObjects = getModelChildren();

     for (i = 0; i < modelObjects.size(); i++)
     {
       model = modelObjects.get(i);

       //Do a quick check to see if editPart[i] == model[i]
       if (i < children.size())
       {
         editPart = (EditPart)children.get(i);
         Object editPartModel = editPart.getModel();
         if (editPartModel == model)
         {
           continue;
         }
         else if (editPartModel.getClass() == model.getClass())
         {
           modelToEditPart.remove(editPartModel);

           if (isActive())
             editPart.deactivate();

           editPart.setModel(model);

           if (isActive())
           {
             editPart.activate();
             editPart.refresh();
           }
           continue;
         }
       }

       //Look to see if the EditPart is already around but in the wrong location
       editPart = (EditPart)modelToEditPart.get(model);

       if (editPart != null)
         reorderChild(editPart, i);
       else
       {
         //An editpart for this model doesn't exist yet.  Create and insert one.
         editPart = createChild(model);
         addChild(editPart, i);
       }
     }
     List trash = new ArrayList();
     for (; i < children.size(); i++)
       trash.add(children.get(i));
     for (i = 0; i < trash.size(); i++)
     {
       EditPart ep = (EditPart)trash.get(i);
       removeChild(ep);
     }
   }

   public void refreshChildren()
   {
     boolean reuseChildren = false;
     if (getViewer() instanceof WSDLComponentViewer)
     {
       WSDLComponentViewer wsdlComponentViewer = (WSDLComponentViewer)getViewer();
       reuseChildren = wsdlComponentViewer.isPreserveExpansionEnabled();
     }

     if (reuseChildren)
     {
       _refreshChildren();
     }
     else
     {
       super.refreshChildren();
     }
   }
 }
	/*******************************************************************************
	* Copyright (c) 2001, 2004 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.wst.wsdl.ui.internal.graph.editparts;

	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Map;

	import org.eclipse.draw2d.ColorConstants;
	import org.eclipse.draw2d.FigureListener;
	import org.eclipse.draw2d.IFigure;
	import org.eclipse.draw2d.Label;
	import org.eclipse.draw2d.MarginBorder;
	import org.eclipse.draw2d.RectangleFigure;
	import org.eclipse.draw2d.ScrollPane;
	import org.eclipse.draw2d.Viewport;
	import org.eclipse.draw2d.ViewportLayout;
	import org.eclipse.draw2d.geometry.Dimension;
	import org.eclipse.draw2d.geometry.Rectangle;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.gef.EditPart;
	import org.eclipse.gef.LayerConstants;
	import org.eclipse.gef.editparts.AbstractGraphicalEditPart;
	import org.eclipse.gef.editparts.ScalableRootEditPart;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.wst.wsdl.Definition;
	import org.eclipse.wst.wsdl.ui.internal.gef.util.figures.RoundedLineBorder;
	import org.eclipse.wst.wsdl.ui.internal.graph.WSDLComponentViewer;
	import org.eclipse.wst.wsdl.ui.internal.model.ModelAdapter;
	import org.eclipse.wst.wsdl.ui.internal.model.WSDLGroupObject;
	import org.eclipse.wst.xsd.ui.internal.gef.util.figures.ContainerFigure;
	import org.eclipse.wst.xsd.ui.internal.gef.util.figures.ContainerLayout;
	import org.eclipse.wst.xsd.ui.internal.gef.util.figures.FillLayout;

	public class GroupEditPart extends WSDLEditPart
	{
	protected ScrollPane scrollpane;
	protected Label label;

	protected Object emphasizedModelObject;
	protected Object inputConnectionModelObject;
	protected Object outputConnectionModelObject;

	public WSDLTreeNodeEditPart emphasizedEditPart;
	public AbstractGraphicalEditPart inputConnection;
	public AbstractGraphicalEditPart outputConnection;

	public GroupEditPart nextGroupEditPart;
	public IConnectionManager connectionManager;

	protected InternalFigureListener figureListener = new InternalFigureListener();

	class InternalFigureListener implements FigureListener
	{
	public void figureMoved(IFigure source)
	{
	ScalableRootEditPart root = (ScalableRootEditPart)getViewer().getRootEditPart();
	root.getLayer(LayerConstants.CONNECTION_LAYER).repaint();
	}
	}

	public Object getEmphasizedModelObject()
	{
	return emphasizedModelObject;
	}

	public Definition getDefinition()
	{
	return ((WSDLGroupObject)getModel()).getDefinition();
	}

	//protected void setEmphasizedObject(EditPart editPart)
	//{
	// UnknownObjectEditPart ep = null;
	// if (editPart instanceof UnknownObjectEditPart)
	// {
	// ep = (UnknownObjectEditPart)editPart;
	// }
	//
	// if (emphasizedEditPart != null)
	// {
	// emphasizedEditPart.setEmphasized(false);
	// }
	// if (ep != null)
	// {
	// emphasizedEditPart = ep;
	// emphasizedEditPart.setEmphasized(true);
	// }
	//}

	public void setEmphasizedModelObject(Object model)
	{
	emphasizedModelObject = model;

	if (emphasizedEditPart != null)
	{
	emphasizedEditPart.setEmphasized(false);
	}

	EditPart editPart = getMatchingChildEditPart(model);
	emphasizedEditPart = (editPart instanceof WSDLTreeNodeEditPart) ? (WSDLTreeNodeEditPart)editPart : null;

	if (emphasizedEditPart != null)
	{
	emphasizedEditPart.setEmphasized(true);
	}
	}

	public void scrollToRevealEditPart(EditPart editPart)
	{
	if (editPart instanceof AbstractGraphicalEditPart)
	{
	scrollToEditPart((AbstractGraphicalEditPart)editPart);
	}
	}

	public void scrollToRevealInputConnection()
	{
	if (inputConnection != null)
	{
	scrollToEditPart(inputConnection);
	}
	}

	public void scrollToRevealOutputConnection()
	{
	if (outputConnection != null)
	{
	scrollToEditPart(outputConnection);
	}
	}

	public void setInputConnectionModelObject(Object model)
	{
	inputConnection = getMatchingChildEditPart(model);
	inputConnectionModelObject = model;
	}

	public Object getInputConnectionModelObject()
	{
	return inputConnectionModelObject;
	}

	public Object getOutputConnectionModelObject()
	{
	return outputConnectionModelObject;
	}

	public void setOutputConnectionModelObject(Object model)
	{
	outputConnection = getMatchingChildEditPart(model);
	outputConnectionModelObject = model;
	}

	protected void createConnectionManager()
	{
	switch (getType())
	{
	case WSDLGroupObject.MESSAGES_GROUP :
	{
	connectionManager = new MessagesGroupConnectionManager(this);
	break;
	}
	case WSDLGroupObject.SERVICES_GROUP :
	{
	connectionManager = new ServicesGroupConnectionManager(this);
	break;
	}
	case WSDLGroupObject.BINDINGS_GROUP :
	{
	connectionManager = new BindingsGroupConnectionManager(this);
	break;
	}
	case WSDLGroupObject.PORT_TYPES_GROUP :
	{
	connectionManager = new PortTypesGroupConnectionManager(this);
	break;
	}
	}
	}

	public IConnectionManager getConnectionManager()
	{
	return connectionManager;
	}

	public ContainerFigure outerPane;

	public IFigure createFigure()
	{
	createConnectionManager();

	outerPane = new ContainerFigure();
	outerPane.setBorder(new RoundedLineBorder(1, 6));
	outerPane.setForegroundColor(groupBorderColor);

	ContainerFigure r = new ContainerFigure();
	//r.setCornerDimensions(new Dimension(4, 4));
	r.setOutline(false);
	r.setMinimumSize(new Dimension(0, 0));

	r.setFill(true);

	r.setBackgroundColor(groupHeaderColor);
	outerPane.add(r);

	//ContainerFigure labelHolder = new ContainerFigure();
	//labelHolder.add(label);
	label = new Label();
	label.setForegroundColor(ColorConstants.black);
	label.setBorder(new MarginBorder(2, 4, 2, 4));
	r.add(label); //Holder);

	RectangleFigure line = new RectangleFigure();
	line.setPreferredSize(20, 1);
	outerPane.add(line);

	int minHeight = 250;
	switch (getType())
	{
	case WSDLGroupObject.IMPORTS_GROUP :
	case WSDLGroupObject.TYPES_GROUP :
	{
	minHeight = 50;
	break;
	}
	case WSDLGroupObject.EXTENSIBILITY_ELEMENTS_GROUP :
	{
	minHeight = 150;
	break;
	}
	}

	final int theMinHeight = minHeight;
	FillLayout outerLayout = new FillLayout()
	{
	protected Dimension calculatePreferredSize(IFigure parent, int width, int height)
	{
	Dimension d = super.calculatePreferredSize(parent, width, height);
	d.union(new Dimension(100, theMinHeight));
	return d;
	}
	};
	outerLayout.setHorizontal(false);
	//layout.setSpacing(5);
	outerPane.setLayoutManager(outerLayout);

	scrollpane = new ScrollPane();
	scrollpane.setForegroundColor(ColorConstants.black);
	scrollpane.setVerticalScrollBarVisibility(ScrollPane.AUTOMATIC); //ScrollPane.ALWAYS);
	outerPane.add(scrollpane);

	ContainerFigure pane = new ContainerFigure();
	pane.setBorder(new MarginBorder(5, 8, 5, 8));
	ContainerLayout layout = new ContainerLayout();
	layout.setHorizontal(false);
	layout.setSpacing(0);
	pane.setLayoutManager(layout);

	Viewport viewport = new Viewport();
	viewport.setContentsTracksHeight(true);
	ViewportLayout viewportLayout = new ViewportLayout()
	{
	protected Dimension calculatePreferredSize(IFigure parent, int width, int height)
	{
	Dimension d = super.calculatePreferredSize(parent, width, height);
	d.height = Math.min(d.height, theMinHeight - 25); //getViewer().getControl().getBounds().height);
	return d;
	}
	};
	viewport.setLayoutManager(viewportLayout);

	scrollpane.setViewport(viewport);
	scrollpane.setContents(pane);
	pane.addFigureListener(figureListener);

	return outerPane;
	}

	protected void refreshVisuals()
	{
	ModelAdapter adapter = getModelAdapter(getModel());
	if (adapter != null)
	{
	label.setText((String)adapter.getProperty(getModel(), ModelAdapter.LABEL_PROPERTY));
	//label.setIcon((Image)adapter.getProperty(getModel(), ModelAdapter.IMAGE_PROPERTY));
	}
	super.refreshVisuals();
	}

	protected void createEditPolicies()
	{
	}

	public IFigure getContentPane()
	{
	return scrollpane.getContents();
	}

	protected void scrollToEditPart(final AbstractGraphicalEditPart targetEditPart)
	{
	Runnable r = new Runnable()
	{
	public void run()
	{
	scrollToEditPartHelper(targetEditPart);
	}
	};
	Display.getCurrent().asyncExec(r);
	}

	protected void scrollToEditPartHelper(AbstractGraphicalEditPart targetEditPart)
	{
	if (targetEditPart != null)
	{
	Rectangle r1 = targetEditPart.getFigure().getBounds();
	Rectangle r2 = getContentPane().getBounds();
	scrollpane.scrollVerticalTo((r1.y - r2.y) - scrollpane.getBounds().height / 2);
	}
	}

	public AbstractGraphicalEditPart getMatchingChildEditPart(Object model)
	{
	List list = new ArrayList();
	for (Object o = model; o != null && !(o instanceof Definition); o = getParent(o))
	{
	list.add(0, o);
	}
	return getMatchingChildEditPart(this, list, 0, true);
	}

	protected Object getParent(Object model)
	{
	Object parent = null;
	if (model instanceof EObject)
	{
	parent = ((EObject)model).eContainer();
	}
	return parent;
	}

	protected AbstractGraphicalEditPart getMatchingChildEditPart(AbstractGraphicalEditPart editPart, List list, int index, boolean getUnexpandedParent)
	{
	AbstractGraphicalEditPart result = (getUnexpandedParent && editPart != this) ? editPart : null;
	Object model = list.size() > index ? list.get(index) : null;
	if (model != null && editPart != null)
	{
	for (Iterator i = editPart.getChildren().iterator(); i.hasNext();)
	{
	AbstractGraphicalEditPart child = (AbstractGraphicalEditPart)i.next();
	if (child.getModel() == model)
	{
	result = child;
	break;
	}
	}
	index++;
	if (index < list.size())
	{
	result = getMatchingChildEditPart(result, list, index, getUnexpandedParent);
	}
	}
	return result;
	}

	public int getType()
	{
	return ((WSDLGroupObject)getModel()).getType();
	}

	public GroupEditPart getNext()
	{
	return ((DefinitionEditPart)getParent()).getNextGroupEditPart(this);
	}

	public GroupEditPart getPrevious()
	{
	return ((DefinitionEditPart)getParent()).getPreviousGroupEditPart(this);
	}

	private void _refreshChildren()
	{
	int i;
	EditPart editPart;
	Object model;

	Map modelToEditPart = new HashMap();
	List children = getChildren();

	for (i = 0; i < children.size(); i++)
	{
	editPart = (EditPart)children.get(i);
	modelToEditPart.put(editPart.getModel(), editPart);
	}

	List modelObjects = getModelChildren();

	for (i = 0; i < modelObjects.size(); i++)
	{
	model = modelObjects.get(i);

	//Do a quick check to see if editPart[i] == model[i]
	if (i < children.size())
	{
	editPart = (EditPart)children.get(i);
	Object editPartModel = editPart.getModel();
	if (editPartModel == model)
	{
	continue;
	}
	else if (editPartModel.getClass() == model.getClass())
	{
	modelToEditPart.remove(editPartModel);

	if (isActive())
	editPart.deactivate();

	editPart.setModel(model);

	if (isActive())
	{
	editPart.activate();
	editPart.refresh();
	}
	continue;
	}
	}

	//Look to see if the EditPart is already around but in the wrong location
	editPart = (EditPart)modelToEditPart.get(model);

	if (editPart != null)
	reorderChild(editPart, i);
	else
	{
	//An editpart for this model doesn't exist yet. Create and insert one.
	editPart = createChild(model);
	addChild(editPart, i);
	}
	}
	List trash = new ArrayList();
	for (; i < children.size(); i++)
	trash.add(children.get(i));
	for (i = 0; i < trash.size(); i++)
	{
	EditPart ep = (EditPart)trash.get(i);
	removeChild(ep);
	}
	}

	public void refreshChildren()
	{
	boolean reuseChildren = false;
	if (getViewer() instanceof WSDLComponentViewer)
	{
	WSDLComponentViewer wsdlComponentViewer = (WSDLComponentViewer)getViewer();
	reuseChildren = wsdlComponentViewer.isPreserveExpansionEnabled();
	}

	if (reuseChildren)
	{
	_refreshChildren();
	}
	else
	{
	super.refreshChildren();
	}
	}
	}