source: branches/SimulationCore/HeuristicLab.SimulationCore.Dsl/Dsl/GeneratedCode/Diagram.cs @ 14079

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

using DslModeling = global::Microsoft.VisualStudio.Modeling;
using DslDesign = global::Microsoft.VisualStudio.Modeling.Design;
using DslDiagrams = global::Microsoft.VisualStudio.Modeling.Diagrams;

[module: global::System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Maintainability", "CA1506:AvoidExcessiveClassCoupling", Scope = "type", Target = "HeuristicLab.SimulationCore.HLSimDiagram")]

namespace HeuristicLab.SimulationCore
{
  /// <summary>
  /// DomainClass HLSimDiagram
  /// Description for HeuristicLab.SimulationCore.HLSimDiagram
  /// </summary>
  [DslDesign::DisplayNameResource("HeuristicLab.SimulationCore.HLSimDiagram.DisplayName", typeof(global::HeuristicLab.SimulationCore.HLSimDomainModel), "HeuristicLab.SimulationCore.GeneratedCode.DomainModelResx")]
  [DslDesign::DescriptionResource("HeuristicLab.SimulationCore.HLSimDiagram.Description", typeof(global::HeuristicLab.SimulationCore.HLSimDomainModel), "HeuristicLab.SimulationCore.GeneratedCode.DomainModelResx")]
  [DslModeling::DomainModelOwner(typeof(global::HeuristicLab.SimulationCore.HLSimDomainModel))]
  [global::System.CLSCompliant(true)]
  [DslModeling::DomainObjectId("cf1c9f0b-eb8e-4d36-9fcc-6cd2455f9cba")]
  public partial class HLSimDiagram : DslDiagrams::Diagram
  {
    #region Diagram boilerplate
    private static DslDiagrams::StyleSet classStyleSet;
    private static global::System.Collections.Generic.IList<DslDiagrams::ShapeField> shapeFields;
    /// <summary>
    /// Per-class style set for this shape.
    /// </summary>
    protected override DslDiagrams::StyleSet ClassStyleSet
    {
      get
      {
        if (classStyleSet == null)
        {
          classStyleSet = CreateClassStyleSet();
        }
        return classStyleSet;
      }
    }
    
    /// <summary>
    /// Per-class ShapeFields for this shape
    /// </summary>
    public override global::System.Collections.Generic.IList<DslDiagrams::ShapeField> ShapeFields
    {
      get
      {
        if (shapeFields == null)
        {
          shapeFields = CreateShapeFields();
        }
        return shapeFields;
      }
    }
    #endregion
    #region Toolbox filters
    private static global::System.ComponentModel.ToolboxItemFilterAttribute[] toolboxFilters = new global::System.ComponentModel.ToolboxItemFilterAttribute[] {
          new global::System.ComponentModel.ToolboxItemFilterAttribute(global::HeuristicLab.SimulationCore.HLSimToolboxHelperBase.ToolboxFilterString, global::System.ComponentModel.ToolboxItemFilterType.Require) };
    
    /// <summary>
    /// Toolbox item filter attributes for this diagram.
    /// </summary>
    public override global::System.Collections.ICollection TargetToolboxItemFilterAttributes
    {
      get
      {
        return toolboxFilters;
      }
    }
    #endregion
    #region Auto-placement
    /// <summary>
    /// Indicate that child shapes should added through view fixup should be placed automatically.
    /// </summary>
    public override bool ShouldAutoPlaceChildShapes
    {
      get
      {
        return true;
      }
    }
    #endregion
    #region Shape mapping
    /// <summary>
    /// Called during view fixup to ask the parent whether a shape should be created for the given child element.
    /// </summary>
    /// <remarks>
    /// Always return true, since we assume there is only one diagram per model file for DSL scenarios.
    /// </remarks>
    protected override bool ShouldAddShapeForElement(DslModeling::ModelElement element)
    {
      return true;
    }
    
    /// <summary>
    /// Called during view fixup to configure the given child element, after it has been created.
    /// </summary>
    /// <remarks>
    /// Custom code for choosing the shapes attached to either end of a connector is called from here.
    /// </remarks>
    protected override void OnChildConfiguring(DslDiagrams::ShapeElement child, bool createdDuringViewFixup)
    {
      DslDiagrams::NodeShape sourceShape;
      DslDiagrams::NodeShape targetShape;
      DslDiagrams::BinaryLinkShape connector = child as DslDiagrams::BinaryLinkShape;
      if(connector == null)
      {
        base.OnChildConfiguring(child, createdDuringViewFixup);
        return;
      }
      this.GetSourceAndTargetForConnector(connector, out sourceShape, out targetShape);
      
      global::System.Diagnostics.Debug.Assert(sourceShape != null && targetShape != null, "Unable to find source and target shapes for connector.");
      connector.Connect(sourceShape, targetShape);
    }
    
    /// <summary>
    /// helper method to find the shapes for either end of a connector, including calling the user's custom code
    /// </summary>
    [global::System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1800:DoNotCastUnnecessarily")]
    internal void GetSourceAndTargetForConnector(DslDiagrams::BinaryLinkShape connector, out DslDiagrams::NodeShape sourceShape, out DslDiagrams::NodeShape targetShape)
    {
      sourceShape = null;
      targetShape = null;
      
      if (sourceShape == null || targetShape == null)
      {
        DslDiagrams::NodeShape[] endShapes = GetEndShapesForConnector(connector);
        if(sourceShape == null)
        {
          sourceShape = endShapes[0];
        }
        if(targetShape == null)
        {
          targetShape = endShapes[1];
        }
      }
    }
    
    /// <summary>
    /// Helper method to find shapes for either end of a connector by looking for shapes associated with either end of the relationship mapped to the connector.
    /// </summary>
    private DslDiagrams::NodeShape[] GetEndShapesForConnector(DslDiagrams::BinaryLinkShape connector)
    {
      DslModeling::ElementLink link = connector.ModelElement as DslModeling::ElementLink;
      DslDiagrams::NodeShape sourceShape = null, targetShape = null;
      if (link != null)
      {
        global::System.Collections.ObjectModel.ReadOnlyCollection<DslModeling::ModelElement> linkedElements = link.LinkedElements;
        if (linkedElements.Count == 2)
        {
          DslDiagrams::Diagram currentDiagram = this.Diagram;
          DslModeling::LinkedElementCollection<DslDiagrams::PresentationElement> presentationElements = DslDiagrams::PresentationViewsSubject.GetPresentation(linkedElements[0]);
          foreach (DslDiagrams::PresentationElement presentationElement in presentationElements)
          {
            DslDiagrams::NodeShape shape = presentationElement as DslDiagrams::NodeShape;
            if (shape != null && shape.Diagram == currentDiagram)
            {
              sourceShape = shape;
              break;
            }
          }
          
          presentationElements = DslDiagrams::PresentationViewsSubject.GetPresentation(linkedElements[1]);
          foreach (DslDiagrams::PresentationElement presentationElement in presentationElements)
          {
            DslDiagrams::NodeShape shape = presentationElement as DslDiagrams::NodeShape;
            if (shape != null && shape.Diagram == currentDiagram)
            {
              targetShape = shape;
              break;
            }
          }
    
        }
      }
      
      return new DslDiagrams::NodeShape[] { sourceShape, targetShape };
    }
    
    /// <summary>
    /// Creates a new shape for the given model element as part of view fixup
    /// </summary>
    [global::System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1800:DoNotCastUnnecessarily", Justification = "Generated code.")]
    [global::System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Maintainability", "CA1506:AvoidExcessiveClassCoupling", Justification = "Generated code.")]
    protected override DslDiagrams::ShapeElement CreateChildShape(DslModeling::ModelElement element)
    {
      if(element is global::HeuristicLab.SimulationCore.Activity)
      {
        global::HeuristicLab.SimulationCore.ActivityShape newShape = new global::HeuristicLab.SimulationCore.ActivityShape(this.Partition);
        if(newShape != null) newShape.Size = newShape.DefaultSize; // set default shape size
        return newShape;
      }
      if(element is global::HeuristicLab.SimulationCore.Action)
      {
        global::HeuristicLab.SimulationCore.ActionShape newShape = new global::HeuristicLab.SimulationCore.ActionShape(this.Partition);
        if(newShape != null) newShape.Size = newShape.DefaultSize; // set default shape size
        return newShape;
      }
      if(element is global::HeuristicLab.SimulationCore.ActivityReferencesTriggers)
      {
        global::HeuristicLab.SimulationCore.Trigger newShape = new global::HeuristicLab.SimulationCore.Trigger(this.Partition);
        return newShape;
      }
      if(element is global::HeuristicLab.SimulationCore.ActionReferencesListeners)
      {
        global::HeuristicLab.SimulationCore.Listener newShape = new global::HeuristicLab.SimulationCore.Listener(this.Partition);
        return newShape;
      }
      return base.CreateChildShape(element);
    }
    #endregion
    #region Decorator mapping
    /// <summary>
    /// Initialize shape decorator mappings.  This is done here rather than in individual shapes because decorator maps
    /// are defined per diagram type rather than per shape type.
    /// </summary>
    protected override void InitializeShapeFields(global::System.Collections.Generic.IList<DslDiagrams::ShapeField> shapeFields)
    {
      base.InitializeShapeFields(shapeFields);
      global::HeuristicLab.SimulationCore.ActivityShape.DecoratorsInitialized += ActivityShapeDecoratorMap.OnDecoratorsInitialized;
      global::HeuristicLab.SimulationCore.ActionShape.DecoratorsInitialized += ActionShapeDecoratorMap.OnDecoratorsInitialized;
    }
    
    /// <summary>
    /// Class containing decorator path traversal methods for ActivityShape.
    /// </summary>
    internal static partial class ActivityShapeDecoratorMap
    {
      /// <summary>
      /// Event handler called when decorator initialization is complete for ActivityShape.  Adds decorator mappings for this shape or connector.
      /// </summary>
      public static void OnDecoratorsInitialized(object sender, global::System.EventArgs e)
      {
        DslDiagrams::ShapeElement shape = (DslDiagrams::ShapeElement)sender;
        DslDiagrams::AssociatedPropertyInfo propertyInfo;
        
        propertyInfo = new DslDiagrams::AssociatedPropertyInfo(global::HeuristicLab.SimulationCore.Activity.NameDomainPropertyId);
        DslDiagrams::ShapeElement.FindDecorator(shape.Decorators, "NameDecorator").AssociateValueWith(shape.Store, propertyInfo);
      }
    }
    
    /// <summary>
    /// Class containing decorator path traversal methods for ActionShape.
    /// </summary>
    internal static partial class ActionShapeDecoratorMap
    {
      /// <summary>
      /// Event handler called when decorator initialization is complete for ActionShape.  Adds decorator mappings for this shape or connector.
      /// </summary>
      public static void OnDecoratorsInitialized(object sender, global::System.EventArgs e)
      {
        DslDiagrams::ShapeElement shape = (DslDiagrams::ShapeElement)sender;
        DslDiagrams::AssociatedPropertyInfo propertyInfo;
        
        propertyInfo = new DslDiagrams::AssociatedPropertyInfo(global::HeuristicLab.SimulationCore.Action.NameDomainPropertyId);
        DslDiagrams::ShapeElement.FindDecorator(shape.Decorators, "NameDecorator").AssociateValueWith(shape.Store, propertyInfo);
      }
    }
    
    #endregion
    
    #region Connect actions
    private bool changingMouseAction;
    private global::HeuristicLab.SimulationCore.TriggerConnectAction triggerConnectAction;
    private global::HeuristicLab.SimulationCore.ListenerConnectAction listenerConnectAction;
    /// <summary>
    /// Virtual method to provide a filter when to select the mouse action
    /// </summary>
    /// <param name="activeView">Currently active view</param>
    /// <param name="filter">filter string used to filter the toolbox items</param>
    protected virtual bool SelectedToolboxItemSupportsFilterString(DslDiagrams::DiagramView activeView, string filter)
    {
      return activeView.SelectedToolboxItemSupportsFilterString(filter);
    }
    /// <summary>
    /// Override to provide the right mouse action when trying
    /// to create links on the diagram
    /// </summary>
    /// <param name="pointArgs"></param>
    public override void OnViewMouseEnter(DslDiagrams::DiagramPointEventArgs pointArgs)
    {
      if (pointArgs  == null) throw new global::System.ArgumentNullException("pointArgs");
    
      DslDiagrams::DiagramView activeView = this.ActiveDiagramView;
      if(activeView != null)
      {
        DslDiagrams::MouseAction action = null;
        if (SelectedToolboxItemSupportsFilterString(activeView, global::HeuristicLab.SimulationCore.HLSimToolboxHelper.TriggerFilterString))
        {
          if (this.triggerConnectAction == null)
          {
            this.triggerConnectAction = new global::HeuristicLab.SimulationCore.TriggerConnectAction(this);
            this.triggerConnectAction.MouseActionDeactivated += new DslDiagrams::MouseAction.MouseActionDeactivatedEventHandler(OnConnectActionDeactivated);
          }
          action = this.triggerConnectAction;
        } 
        else if (SelectedToolboxItemSupportsFilterString(activeView, global::HeuristicLab.SimulationCore.HLSimToolboxHelper.ListenerFilterString))
        {
          if (this.listenerConnectAction == null)
          {
            this.listenerConnectAction = new global::HeuristicLab.SimulationCore.ListenerConnectAction(this);
            this.listenerConnectAction.MouseActionDeactivated += new DslDiagrams::MouseAction.MouseActionDeactivatedEventHandler(OnConnectActionDeactivated);
          }
          action = this.listenerConnectAction;
        } 
        else
        {
          action = null;
        }
        
        if (pointArgs.DiagramClientView.ActiveMouseAction != action)
        {
          try
          {
            this.changingMouseAction = true;
            pointArgs.DiagramClientView.ActiveMouseAction = action;
          }
          finally
          {
            this.changingMouseAction = false;
          }
        }
      }
    }
    
    /// <summary>
    /// Snap toolbox selection back to regular pointer after using a custom connect action.
    /// </summary>
    private void OnConnectActionDeactivated(object sender, DslDiagrams::DiagramEventArgs e)
    {
      OnMouseActionDeactivated();
    }
    
    /// <summary>
    /// Overridable method to manage the mouse deactivation. The default implementation snap stoolbox selection back to regular pointer 
    /// after using a custom connect action.
    /// </summary>
    protected virtual void OnMouseActionDeactivated()
    {
      DslDiagrams::DiagramView activeView = this.ActiveDiagramView;
    
      if (activeView != null && activeView.Toolbox != null)
      {
        // If we're not changing mouse action due to changing toolbox selection change,
        // reset toolbox selection.
        if (!this.changingMouseAction)
        {
          activeView.Toolbox.SelectedToolboxItemUsed();
        }
      }
    }
    #endregion
    
    /// <summary>
    /// Dispose of connect actions.
    /// </summary>
    protected override void Dispose(bool disposing)
    {
      try
      {
        if(disposing)
        {
          if(this.triggerConnectAction != null)
          {
            this.triggerConnectAction.Dispose();
            this.triggerConnectAction = null;
          }
          if(this.listenerConnectAction != null)
          {
            this.listenerConnectAction.Dispose();
            this.listenerConnectAction = null;
          }
        }
      }
      finally
      {
        base.Dispose(disposing);
      }
    }
    #region Constructors, domain class Id
  
    /// <summary>
    /// HLSimDiagram domain class Id.
    /// </summary>
    public static readonly new global::System.Guid DomainClassId = new global::System.Guid(0xcf1c9f0b, 0xeb8e, 0x4d36, 0x9f, 0xcc, 0x6c, 0xd2, 0x45, 0x5f, 0x9c, 0xba);
    /// <summary>
    /// Constructor
    /// </summary>
    /// <param name="store">Store where new element is to be created.</param>
    /// <param name="propertyAssignments">List of domain property id/value pairs to set once the element is created.</param>
    public HLSimDiagram(DslModeling::Store store, params DslModeling::PropertyAssignment[] propertyAssignments)
      : this(store != null ? store.DefaultPartitionForClass(DomainClassId) : null, propertyAssignments)
    {
    }
    
    /// <summary>
    /// Constructor
    /// </summary>
    /// <param name="partition">Partition where new element is to be created.</param>
    /// <param name="propertyAssignments">List of domain property id/value pairs to set once the element is created.</param>
    public HLSimDiagram(DslModeling::Partition partition, params DslModeling::PropertyAssignment[] propertyAssignments)
      : base(partition, propertyAssignments)
    {
    }
    #endregion
  }
}
namespace HeuristicLab.SimulationCore
{
  
    /// <summary>
    /// Double derived implementation for the rule that initiates view fixup when an element that has an associated shape is added to the model.
    /// This now enables the DSL author to everride the SkipFixUp() method 
    /// </summary>
    internal partial class FixUpDiagramBase : DslModeling::AddRule
    {
      protected virtual bool SkipFixup(DslModeling::ModelElement childElement)
      {
        return childElement.IsDeleted;
      }
    }
  
    /// <summary>
    /// Rule that initiates view fixup when an element that has an associated shape is added to the model. 
    /// </summary>
    [DslModeling::RuleOn(typeof(global::HeuristicLab.SimulationCore.Activity), FireTime = DslModeling::TimeToFire.TopLevelCommit, Priority = DslDiagrams::DiagramFixupConstants.AddShapeParentExistRulePriority, InitiallyDisabled=true)]
    [DslModeling::RuleOn(typeof(global::HeuristicLab.SimulationCore.Action), FireTime = DslModeling::TimeToFire.TopLevelCommit, Priority = DslDiagrams::DiagramFixupConstants.AddShapeParentExistRulePriority, InitiallyDisabled=true)]
    [DslModeling::RuleOn(typeof(global::HeuristicLab.SimulationCore.ActivityReferencesTriggers), FireTime = DslModeling::TimeToFire.TopLevelCommit, Priority = DslDiagrams::DiagramFixupConstants.AddConnectionRulePriority, InitiallyDisabled=true)]
    [DslModeling::RuleOn(typeof(global::HeuristicLab.SimulationCore.ActionReferencesListeners), FireTime = DslModeling::TimeToFire.TopLevelCommit, Priority = DslDiagrams::DiagramFixupConstants.AddConnectionRulePriority, InitiallyDisabled=true)]
    internal sealed partial class FixUpDiagram : FixUpDiagramBase
    {
      [global::System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1800:DoNotCastUnnecessarily")]
      public override void ElementAdded(DslModeling::ElementAddedEventArgs e)
      {
        if(e == null) throw new global::System.ArgumentNullException("e");
      
        DslModeling::ModelElement childElement = e.ModelElement;
        if (this.SkipFixup(childElement))
          return;
        DslModeling::ModelElement parentElement;
        if(childElement is DslModeling::ElementLink)
        {
          parentElement = GetParentForRelationship((DslModeling::ElementLink)childElement);
        } else
        if(childElement is global::HeuristicLab.SimulationCore.Activity)
        {
          parentElement = GetParentForActivity((global::HeuristicLab.SimulationCore.Activity)childElement);
        } else
        if(childElement is global::HeuristicLab.SimulationCore.Action)
        {
          parentElement = GetParentForAction((global::HeuristicLab.SimulationCore.Action)childElement);
        } else
        {
          parentElement = null;
        }
        
        if(parentElement != null)
        {
          DslDiagrams::Diagram.FixUpDiagram(parentElement, childElement);
        }
      }
      public static global::HeuristicLab.SimulationCore.SimulationModel GetParentForActivity( global::HeuristicLab.SimulationCore.Activity root )
      {
        // Segments 0 and 1
        global::HeuristicLab.SimulationCore.SimulationModel result = root.SimulationModel;
        if ( result == null ) return null;
        return result;
      }
      public static global::HeuristicLab.SimulationCore.SimulationModel GetParentForAction( global::HeuristicLab.SimulationCore.Action root )
      {
        // Segments 0 and 1
        global::HeuristicLab.SimulationCore.SimulationModel result = root.SimulationModel;
        if ( result == null ) return null;
        return result;
      }
      private static DslModeling::ModelElement GetParentForRelationship(DslModeling::ElementLink elementLink)
      {
        global::System.Collections.ObjectModel.ReadOnlyCollection<DslModeling::ModelElement> linkedElements = elementLink.LinkedElements;
  
        if (linkedElements.Count == 2)
        {
          DslDiagrams::ShapeElement sourceShape = linkedElements[0] as DslDiagrams::ShapeElement;
          DslDiagrams::ShapeElement targetShape = linkedElements[1] as DslDiagrams::ShapeElement;
  
          if(sourceShape == null)
          {
            DslModeling::LinkedElementCollection<DslDiagrams::PresentationElement> presentationElements = DslDiagrams::PresentationViewsSubject.GetPresentation(linkedElements[0]);
            foreach (DslDiagrams::PresentationElement presentationElement in presentationElements)
            {
              DslDiagrams::ShapeElement shape = presentationElement as DslDiagrams::ShapeElement;
              if (shape != null)
              {
                sourceShape = shape;
                break;
              }
            }
          }
          
          if(targetShape == null)
          {
            DslModeling::LinkedElementCollection<DslDiagrams::PresentationElement> presentationElements = DslDiagrams::PresentationViewsSubject.GetPresentation(linkedElements[1]);
            foreach (DslDiagrams::PresentationElement presentationElement in presentationElements)
            {
              DslDiagrams::ShapeElement shape = presentationElement as DslDiagrams::ShapeElement;
              if (shape != null)
              {
                targetShape = shape;
                break;
              }
            }
          }
          
          if(sourceShape == null || targetShape == null)
          {
            global::System.Diagnostics.Debug.Fail("Unable to find source and/or target shape for view fixup.");
            return null;
          }
  
          DslDiagrams::ShapeElement sourceParent = sourceShape.ParentShape;
          DslDiagrams::ShapeElement targetParent = targetShape.ParentShape;
  
          while (sourceParent != targetParent && sourceParent != null)
          {
            DslDiagrams::ShapeElement curParent = targetParent;
            while (sourceParent != curParent && curParent != null)
            {
              curParent = curParent.ParentShape;
            }
  
            if(sourceParent == curParent)
            {
              break;
            }
            else
            {
              sourceParent = sourceParent.ParentShape;
            }
          }
  
          while (sourceParent != null)
          {
            // ensure that the parent can parent connectors (i.e., a diagram or a swimlane).
            if(sourceParent is DslDiagrams::Diagram || sourceParent is DslDiagrams::SwimlaneShape)
            {
              break;
            }
            else
            {
              sourceParent = sourceParent.ParentShape;
            }
          }
  
          global::System.Diagnostics.Debug.Assert(sourceParent != null && sourceParent.ModelElement != null, "Unable to find common parent for view fixup.");
          return sourceParent.ModelElement;
        }
  
        return null;
      }
    }
    
  
    /// <summary>
    /// Reroute a connector when the role players of its underlying relationship change
    /// </summary>
    [DslModeling::RuleOn(typeof(global::HeuristicLab.SimulationCore.ActivityReferencesTriggers), FireTime = DslModeling::TimeToFire.TopLevelCommit, Priority = DslDiagrams::DiagramFixupConstants.AddConnectionRulePriority, InitiallyDisabled=true)]
    [DslModeling::RuleOn(typeof(global::HeuristicLab.SimulationCore.ActionReferencesListeners), FireTime = DslModeling::TimeToFire.TopLevelCommit, Priority = DslDiagrams::DiagramFixupConstants.AddConnectionRulePriority, InitiallyDisabled=true)]
    internal sealed class ConnectorRolePlayerChanged : DslModeling::RolePlayerChangeRule
    {
      /// <summary>
      /// Reroute a connector when the role players of its underlying relationship change
      /// </summary>
      public override void RolePlayerChanged(DslModeling::RolePlayerChangedEventArgs e)
      {
        if (e == null) throw new global::System.ArgumentNullException("e");
  
        global::System.Collections.ObjectModel.ReadOnlyCollection<DslDiagrams::PresentationViewsSubject> connectorLinks = DslDiagrams::PresentationViewsSubject.GetLinksToPresentation(e.ElementLink);
        foreach (DslDiagrams::PresentationViewsSubject connectorLink in connectorLinks)
        {
          // Fix up any binary link shapes attached to the element link.
          DslDiagrams::BinaryLinkShape linkShape = connectorLink.Presentation as DslDiagrams::BinaryLinkShape;
          if (linkShape != null)
          {
            global::HeuristicLab.SimulationCore.HLSimDiagram diagram = linkShape.Diagram as global::HeuristicLab.SimulationCore.HLSimDiagram;
            if (diagram != null)
            {
              if (e.NewRolePlayer != null)
              {
                DslDiagrams::NodeShape fromShape;
                DslDiagrams::NodeShape toShape;
                diagram.GetSourceAndTargetForConnector(linkShape, out fromShape, out toShape);
                if (fromShape != null && toShape != null)
                {
                  if (!object.Equals(fromShape, linkShape.FromShape))
                  {
                    linkShape.FromShape = fromShape;
                  }
                  if (!object.Equals(linkShape.ToShape, toShape))
                  {
                    linkShape.ToShape = toShape;
                  }
                }
                else
                {
                  // delete the connector if we cannot find an appropriate target shape.
                  linkShape.Delete();
                }
              }
              else
              {
                // delete the connector if the new role player is null.
                linkShape.Delete();
              }
            }
          }
        }
      }
    }
  }