private static void TranslateDiagramObjectHelper(
EntityDesignerViewModel viewModel, ModelDiagram.BaseDiagramObject modelDiagramEFObject,
EFObject modelObjectToFindViewModel, bool updateShapeElements, UpdateShapeInfoCallback updateShapeInfoCallback)
{
var diagram = viewModel.GetDiagram();
EFObject diagramEFObject = modelDiagramEFObject;
Debug.Assert(diagram != null, "Where is the DSL diagram?");
Debug.Assert(diagramEFObject != null, "Where is the EFObject corresponding to the diagram?");
if (diagram != null &&
diagramEFObject != null)
{
var shapeElement = viewModel.ModelXRef.GetExisting(diagramEFObject) as ViewModelDiagram.ShapeElement;
if (shapeElement == null)
{
// find the view model associated with the model EFObject
var viewModelElement = viewModel.ModelXRef.GetExisting(modelObjectToFindViewModel);
Debug.Assert(viewModelElement != null, "Where is the view model for the model object?");
if (viewModelElement != null)
{
// get the shape element fromm the view model
shapeElement = diagram.FindShape(viewModelElement);
Debug.Assert(shapeElement != null, "Where is the DSL ShapeElement for the view model?");
if (shapeElement != null)
{
// associate the designer model EFObject with the shape element
if ((viewModel.ModelXRef.GetExisting(diagramEFObject) == null) &&
(viewModel.ModelXRef.GetExisting(shapeElement) == null))
{
viewModel.ModelXRef.Add(diagramEFObject, shapeElement, viewModel.EditingContext);
}
}
}
}
// update the shape information for the element
if (updateShapeElements && shapeElement != null)
{
updateShapeInfoCallback(shapeElement);
}
}
}
internal static void TranslateDiagramObject(
EntityDesignerViewModel viewModel, ModelDiagram.BaseDiagramObject modelDiagramObject,
bool updateShapeElements, IList <ViewModelDiagram.ShapeElement> shapesToAutoLayout)
{
Debug.Assert(modelDiagramObject is EFObject, "Why did you define a DiagramEFObject that is not an EFObject?");
var modelEntityTypeShape = modelDiagramObject as DesignerModel.EntityTypeShape;
// the view model could have gotten deleted as a result of OnEFObjectDeleted() so don't attempt to translate the diagram EFObject.
if (modelEntityTypeShape != null &&
modelEntityTypeShape.IsDisposed != true &&
modelEntityTypeShape.EntityType.Target != null &&
modelEntityTypeShape.EntityType.Target.IsDisposed != true)
{
TranslateDiagramObjectHelper(
viewModel, modelDiagramObject, modelEntityTypeShape.EntityType.Target, updateShapeElements,
shapeElement =>
{
var viewEntityTypeShape = shapeElement as EntityTypeShape;
var rectangle = new ViewModelDiagram.RectangleD(
modelEntityTypeShape.PointX.Value
, modelEntityTypeShape.PointY.Value, modelEntityTypeShape.Width.Value, 0.0);
viewEntityTypeShape.AbsoluteBounds = rectangle;
viewEntityTypeShape.IsExpanded = modelEntityTypeShape.IsExpanded.Value;
if (!shapesToAutoLayout.Contains(viewEntityTypeShape))
{
shapesToAutoLayout.Add(viewEntityTypeShape);
}
// Loop through all the shape's connectors and add the connector to list to be autolayout if the connector is not manually routed.
foreach (var linkShape in viewEntityTypeShape.Link)
{
if (linkShape.ManuallyRouted == false &&
shapesToAutoLayout.Contains(linkShape) == false)
{
shapesToAutoLayout.Add(linkShape);
}
}
});
var dslEntityTypeShape = viewModel.ModelXRef.GetExisting(modelEntityTypeShape) as EntityTypeShape;
// dslEntityTypeShape is null if the entity-type is deleted, in that case skip sync FillColor property.
if (dslEntityTypeShape != null)
{
dslEntityTypeShape.FillColor = modelEntityTypeShape.FillColor.Value;
}
}
// the view model could have gotten deleted as a result of OnEFObjectDeleted() so don't attempt to translate the diagram EFObject.
var modelAssociationConnectorShape = modelDiagramObject as DesignerModel.AssociationConnector;
if (modelAssociationConnectorShape != null &&
modelAssociationConnectorShape.IsDisposed != true &&
modelAssociationConnectorShape.Association.Target != null &&
modelAssociationConnectorShape.Association.Target.IsDisposed != true)
{
TranslateDiagramObjectHelper(
viewModel, modelDiagramObject, modelAssociationConnectorShape.Association.Target, true,
shapeElement => TranslateAssociationConnectors(
shapeElement as AssociationConnector, modelAssociationConnectorShape, shapesToAutoLayout));
}
// the view model could have gotten deleted as a result of OnEFObjectDeleted() so don't attempt to translate the diagram EFObject.
var modelInheritanceConnectorShape = modelDiagramObject as DesignerModel.InheritanceConnector;
if (modelInheritanceConnectorShape != null &&
modelInheritanceConnectorShape.IsDisposed != true &&
modelInheritanceConnectorShape.EntityType.Target != null &&
modelInheritanceConnectorShape.EntityType.Target.IsDisposed != true)
{
var cet = modelInheritanceConnectorShape.EntityType.Target as ConceptualEntityType;
if (cet != null &&
cet.BaseType != null &&
cet.BaseType.RefName != null)
{
TranslateDiagramObjectHelper(
viewModel, modelDiagramObject, cet.BaseType, true,
shapeElement => TranslateInheritanceConnectors(
shapeElement as InheritanceConnector, modelInheritanceConnectorShape, shapesToAutoLayout));
}
}
}
private static string GetDiagramMoniker(BaseDiagramObject diagramObject)
{
var diagramName = (diagramObject.Diagram != null ? diagramObject.Diagram.Name : String.Empty);
if (diagramObject is InheritanceConnector)
{
var entityType = diagramObject.ModelItem as ConceptualEntityType;
Debug.Assert(entityType != null, "Inheritance connector should point to an instance of conceptual entity type.");
if (entityType != null)
{
Debug.Assert(entityType.SafeBaseType != null, "This entity type should be a derived type.");
if (entityType.SafeBaseType != null)
{
return diagramName + " : " + entityType.SafeBaseType.ToPrettyString() + " : " + entityType.ToPrettyString();
}
}
return string.Empty;
}
else if (diagramObject.ModelItem == null)
{
return diagramName + " : " + diagramObject.ToPrettyString();
}
else
{
return diagramName + " : " + diagramObject.ModelItem.ToPrettyString();
}
}