/// <summary>
/// Finds dependent elements in <paramref name="diagram"/> or in whole model
/// for all elements in <paramref name="elements"/>.
/// </summary>
/// <param name="elements">collection of elements for which dependent elements will be
/// returned</param>
/// <param name="diagram">diagram where dependent elements are searched, when set to <code>null</code>
/// lookup will be performed in the whole model</param>
/// <param name="dependency">type of dependencies</param>
/// <returns><see cref="ElementDependencies"/></returns>
private static ElementDependencies FindElementDependencies(IList <Element> elements, Diagram diagram, EDependency dependency)
{
ElementDependencies dependencies = new ElementDependencies();
foreach (Element element in elements)
{
List <Element> dep = new List <Element>();
GetDependentElements(diagram, element, dependency, ref dep, true);
dep.RemoveAll(dependentElement => elements.Contains(dependentElement));
if (dep.Count > 0)
{
dependencies.Flags[element] = false;
dependencies[element] = dep;
}
}
return(dependencies);
}
/*
* Possible dependencies in PSM diagram:
*
* PSMSuperordinateComponent (PSMClass, PSMContentContainer, PSMContentChoice)
* => Components (PSMAssociation, PSMAttributeContainer, PSMContentContainer, PSMContentChoice)
*
* PSMClassUnion
* => Components (PSMClass, PSMClassUnion)
*
* PSMAssociation
* => PSMAssociationChild (PSMClass, PSMClassUnion)
*
* PSMClass
* => Specifications (Generalization)
*
* Generalization
* => General, Specific (PSMClass)
*/
public static ElementDependencies FindPSMDependencies(IEnumerable <Element> deletedElements)
{
ElementDependencies result = new ElementDependencies();
result.elementsToDo = new Queue <KeyValuePair <Element, Element> >();
foreach (Element element in deletedElements)
{
result.elementsToDo.Enqueue(new KeyValuePair <Element, Element>(element, element));
}
result.ignoredElements = deletedElements;
while (result.elementsToDo.Count != 0)
{
KeyValuePair <Element, Element> pair = result.elementsToDo.Dequeue();
if (pair.Value is PSMClass)
{
result.AddClassDependencies(pair.Key, (PSMClass)pair.Value);
}
else if (pair.Value is PSMClassUnion)
{
result.AddClassUnionDependencies(pair.Key, (PSMClassUnion)pair.Value);
}
else if (pair.Value is PSMAssociation)
{
result.AddAssociationDependencies(pair.Key, (PSMAssociation)pair.Value);
}
else if (pair.Value is Generalization)
{
result.AddGeneralizationDependencies(pair.Key, (Generalization)pair.Value);
}
else if (pair.Value is PSMSuperordinateComponent)
{
result.AddSuperordinateComponentDependencies(pair.Key, (PSMSuperordinateComponent)pair.Value);
}
}
return(result);
}