/// <summary>
/// Most connectors are mapped to element links, but there can be exceptions. This method tell if a connector should be
/// mapped to an element link.
/// </summary>
public override bool IsConnectorMappedToLink(DslDiagrams::BinaryLinkShape connector)
{
#region Check Parameters
global::System.Diagnostics.Debug.Assert(connector != null);
if (connector == null)
{
throw new global::System.ArgumentNullException("connector");
}
#endregion
if (connector.GetType() == typeof(global::imbNLP.PipelineDSLD.Forward))
{
return(false);
}
return(base.IsConnectorMappedToLink(connector));
}
/// <summary>
/// Most connectors are mapped to element links, but there can be exceptions. This method tell if a connector should be
/// mapped to an element link.
/// </summary>
public override bool IsConnectorMappedToLink(DslDiagrams::BinaryLinkShape connector)
{
#region Check Parameters
global::System.Diagnostics.Debug.Assert(connector != null);
if (connector == null)
{
throw new global::System.ArgumentNullException("connector");
}
#endregion
if (connector.GetType() == typeof(global::ORMSolutions.ORMArchitect.Views.RelationalView.ForeignKeyConnector))
{
return(false);
}
return(base.IsConnectorMappedToLink(connector));
}
/// <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>
/// 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::Microsoft.Practices.ServiceFactory.HostDesigner.HostDesignerDiagram diagram = linkShape.Diagram as global::Microsoft.Practices.ServiceFactory.HostDesigner.HostDesignerDiagram;
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();
}
}
}
}
}
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 });
}
