Integration of OCCT 6.5.0 from SVN

src/IFGraph/IFGraph_ExternalSources.cxx

@@ -0,0 +1,51 @@
+#include <IFGraph_ExternalSources.ixx>
+
+
+
+// ExternalSources exploite les resultats stockes dans le Graphe sur Sharings
+// Soit les "Sharings" des entites notees par GetFromEntity et GetFromIter
+// Celles des "Sharings" qui n etaient pas deja notees sont ExternalSources
+// Les status :
+// - Les entites de depart sont au Status 0
+// - Les entites Sharing NOUVELLES (ExternalSources) sont au Status 1
+
+
+    IFGraph_ExternalSources::IFGraph_ExternalSources
+  (const Interface_Graph& agraph)
+      : thegraph (agraph)    {  }
+
+
+    void  IFGraph_ExternalSources::GetFromEntity
+  (const Handle(Standard_Transient)& ent)
+      {  thegraph.GetFromEntity(ent,Standard_True);  }
+
+    void  IFGraph_ExternalSources::GetFromIter
+  (const Interface_EntityIterator& iter)
+      {  thegraph.GetFromIter(iter,0);  }
+
+    void  IFGraph_ExternalSources::ResetData ()
+      {  Reset();  thegraph.Reset();  }
+
+
+    void  IFGraph_ExternalSources::Evaluate ()
+{
+  Reset();
+  thegraph.RemoveStatus(1);
+  Standard_Integer nb = thegraph.Size();
+  for (Standard_Integer i = 1; i <= nb; i ++) {
+    if (thegraph.IsPresent(i) && thegraph.Status(i) == 0)
+      thegraph.GetFromIter ( thegraph.Sharings(thegraph.Entity(i)), 1 );
+  }
+  GetFromGraph(thegraph,1);
+}
+
+    Standard_Boolean IFGraph_ExternalSources::IsEmpty ()
+{
+  Evaluate();
+  Standard_Integer nb = thegraph.Size();
+  for (Standard_Integer i = 1; i <= nb; i ++) {
+    if (thegraph.IsPresent(i) || thegraph.Status(i) == 1)
+      return Standard_False;
+  }
+  return Standard_True;
+}