public virtual DiagramSelection ComputeEffectiveSelection(Shapes.IDiagramShapeCollection coll, bool move)
{
Hashtable hashtable1 = new Hashtable();
Shapes.DiagramShapeCollection collection1 = null;
DiagramSelection selection1 = new DiagramSelection(null);
Shapes.DiagramShapeCollection collection2 = null;
foreach (Shapes.DiagramShape obj1 in coll)
{
Shapes.DiagramShape obj2 = obj1.DraggingObject;
if (((obj2 != null) && !(move ? !obj2.CanMove() : !obj2.CanCopy())) && !this.alreadyDragged(hashtable1, obj2))
{
if ((collection1 != null) && (obj2 is Shapes.GroupShape))
{
CollectionEnumerator enumerator2 = collection1.GetEnumerator();
while (enumerator2.MoveNext())
{
Shapes.DiagramShape obj3 = enumerator2.Current;
if (obj3.IsChildOf(obj2))
{
hashtable1.Remove(7);
if (collection2 == null)
{
collection2 = new Shapes.DiagramShapeCollection();
}
collection2.Add(obj3);
selection1.Remove(obj3);
}
}
if ((collection2 != null) && !collection2.IsEmpty)
{
enumerator2 = collection2.GetEnumerator();
while (enumerator2.MoveNext())
{
Shapes.DiagramShape obj4 = enumerator2.Current;
collection1.Remove(obj4);
}
collection2.Clear();
}
}
hashtable1.Add(obj2, obj2);
if (!obj2.IsTopLevel)
{
if (collection1 == null)
{
collection1 = new Shapes.DiagramShapeCollection();
}
collection1.Add(obj2);
}
selection1.Add(obj2);
}
}
Shapes.DiagramShape[] objArray1 = selection1.CopyArray();
for (int num1 = 0; num1 < objArray1.Length; num1++)
{
Shapes.DiagramShape obj5 = objArray1[num1];
Shapes.IDiagramNode node1 = obj5 as Shapes.IDiagramNode;
if (node1 != null)
{
foreach (Shapes.IDiagramLine link1 in node1.DestinationLinks)
{
if (!this.alreadyDragged(hashtable1, link1.DiagramShape) && ((link1.ToPort == null) || this.alreadyDragged(hashtable1, link1.ToPort.DiagramShape)))
{
hashtable1.Add(link1.DiagramShape, link1.DiagramShape);
selection1.Add(link1.DiagramShape);
}
}
foreach (Shapes.IDiagramLine link2 in node1.SourceLinks)
{
if (!this.alreadyDragged(hashtable1, link2.DiagramShape) && ((link2.FromPort == null) || this.alreadyDragged(hashtable1, link2.FromPort.DiagramShape)))
{
hashtable1.Add(link2.DiagramShape, link2.DiagramShape);
selection1.Add(link2.DiagramShape);
}
}
}
}
return(selection1);
}