+SMDS_MeshIDFactory::SMDS_MeshIDFactory():myMaxID(0), myMesh(0)
+{
+}
+
+int SMDS_MeshIDFactory::GetFreeID()
+{
+ int newid;
+ if (myPoolOfID.empty())
+ {
+ newid = ++myMaxID;
+ //MESSAGE("GetFreeID new " << newid);
+ }
+ else
+ {
+ set<int>::iterator i = myPoolOfID.begin();
+ newid = *i;//myPoolOfID.top();
+ myPoolOfID.erase( i );//myPoolOfID.pop();
+ //MESSAGE("GetFreeID pool " << newid);
+ }
+ return newid;
+}
+
+//=======================================================================
+//function : ReleaseID
+//purpose :
+//=======================================================================
+void SMDS_MeshIDFactory::ReleaseID(int ID, int vtkId)
+{
+ if ( ID > 0 )
+ {
+ if ( ID < myMaxID )
+ {
+ myPoolOfID.insert(ID);
+ }
+ else if ( ID == myMaxID )
+ {
+ --myMaxID;
+ if ( !myPoolOfID.empty() ) // assure that myMaxID is not in myPoolOfID
+ {
+ set<int>::iterator i = --myPoolOfID.end();
+ while ( i != myPoolOfID.begin() && myMaxID == *i ) {
+ --myMaxID; --i;
+ }
+ if ( myMaxID == *i )
+ --myMaxID; // begin of myPoolOfID reached
+ else
+ ++i;
+ myPoolOfID.erase( i, myPoolOfID.end() );
+ }
+ }
+ }
+}
+
+void SMDS_MeshIDFactory::Clear()
+{
+ myMaxID = 0;
+ myPoolOfID.clear();
+}
+
+void SMDS_MeshIDFactory::SetMesh(SMDS_Mesh *mesh)
+{
+ myMesh = mesh;
+}
+
+SMDS_Mesh* SMDS_MeshIDFactory::GetMesh()
+{
+ return myMesh;
+}
+
+void SMDS_MeshIDFactory::emptyPool(int maxId)