/// <summary>
/// Customize childshape create to set an initial location for a <see cref="BarkerEntityShape"/>
/// </summary>
protected override ShapeElement CreateChildShape(ModelElement element)
{
object barkerEntityPositionsObject;
Dictionary <Guid, PointD> barkerEntityPositions;
PointD initialLocation;
BarkerErModelContainsBinaryAssociation modelContainsAssociation;
EntityType barkerEntity;
ConceptType conceptType;
ObjectType objectType;
if (null != (barkerEntity = element as EntityType))
{
if (element.Store.TransactionManager.CurrentTransaction.TopLevelTransaction.Context.ContextInfo.TryGetValue(BarkerEntityPositionDictionaryKey, out barkerEntityPositionsObject) &&
null != (barkerEntityPositions = barkerEntityPositionsObject as Dictionary <Guid, PointD>) &&
null != (conceptType = EntityTypeIsPrimarilyForConceptType.GetConceptType(barkerEntity)) &&
null != (objectType = ConceptTypeIsForObjectType.GetObjectType(conceptType)) &&
barkerEntityPositions.TryGetValue(objectType.Id, out initialLocation))
{
return(new BarkerEntityShape(
this.Partition,
new PropertyAssignment(BarkerEntityShape.AbsoluteBoundsDomainPropertyId, new RectangleD(initialLocation, new SizeD(1, 0.3)))));
}
}
else if (null != (modelContainsAssociation = element as BarkerErModelContainsBinaryAssociation))
{
return(new AssociationConnector(Partition));
}
return(base.CreateChildShape(element));
}
/// <summary>
/// Serializes this <see cref="BarkerERDiagram"/>.
/// </summary>
/// <param name="writer">A <see cref="T:System.Xml.XmlWriter"/> that will write the custom serialization contents.</param>
void IXmlSerializable.WriteXml(XmlWriter writer)
{
string rvNamespace = BarkerERShapeDomainModel.XmlNamespace;
// <BarkerERDiagram>
// <BarkerEntityShape ObjectTypeRef="" Location="x, y" />
// ...
// </BarkerERDiagram>
ISerializationContext serializationContext = ((ISerializationContextHost)Store).SerializationContext;
writer.WriteStartElement(BarkerERDiagramElementName, rvNamespace);
writer.WriteAttributeString(IdAttributeName, serializationContext.GetIdentifierString(Id));
writer.WriteAttributeString(SubjectRefAttributeName, serializationContext.GetIdentifierString(this.ModelElement.Id));
TypeConverter typeConverter = TypeDescriptor.GetConverter(typeof(PointD));
foreach (ShapeElement shapeElement in this.NestedChildShapes)
{
BarkerEntityShape barkerEntityShape = shapeElement as BarkerEntityShape;
if (barkerEntityShape != null)
{
ConceptType conceptType;
ObjectType objectType;
if (null != (conceptType = EntityTypeIsPrimarilyForConceptType.GetConceptType((EntityType)barkerEntityShape.ModelElement)) &&
null != (objectType = ConceptTypeIsForObjectType.GetObjectType(conceptType)))
{
writer.WriteStartElement(BarkerEntityShapeElementName, rvNamespace);
writer.WriteAttributeString(ObjectTypeRefAttributeName, serializationContext.GetIdentifierString(objectType.Id));
writer.WriteAttributeString(LocationAttributeName, typeConverter.ConvertToInvariantString(barkerEntityShape.Location));
writer.WriteEndElement();
}
}
}
writer.WriteEndElement();
}
private static bool AllStepsMandatory(EntityType entity, IEnumerable <ConceptTypeChild> links)
{
bool allStepsMandatory = true;
ConceptType lastTarget = null;
bool firstPass = true;
foreach (ConceptTypeChild child in links)
{
if (!child.IsMandatory)
{
ConceptTypeAssimilatesConceptType assimilation = child as ConceptTypeAssimilatesConceptType;
if (assimilation != null)
{
// The IsMandatory property applies when stepping parent-to-target, However, stepping target-to-parent
// is always considered mandatory. See if we're in this situation.
if (firstPass)
{
lastTarget = EntityTypeIsPrimarilyForConceptType.GetConceptType(entity);
}
if (lastTarget != null &&
lastTarget == assimilation.Target)
{
lastTarget = assimilation.Parent;
firstPass = false;
continue;
}
}
allStepsMandatory = false;
break;
}
lastTarget = child.Target as ConceptType;
firstPass = false;
}
return(allStepsMandatory);
}
