Split out iterator definitions

git-svn-id: https://svn.dealii.org/trunk@13076 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/deal.II/include/multigrid/mg_dof_iterator_selector.h b/deal.II/deal.II/include/multigrid/mg_dof_iterator_selector.h
new file mode 100644 (file)
index 0000000..c46d104
--- /dev/null
+++ b/deal.II/deal.II/include/multigrid/mg_dof_iterator_selector.h
@@ -0,0 +1,203 @@
+//---------------------------------------------------------------------------
+//    $Id$
+//    Version: $Name$
+//
+//    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 by the deal.II authors
+//
+//    This file is subject to QPL and may not be  distributed
+//    without copyright and license information. Please refer
+//    to the file deal.II/doc/license.html for the  text  and
+//    further information on this license.
+//
+//---------------------------------------------------------------------------
+#ifndef __deal2__mg_dof_iterator_selector_h
+#define __deal2__mg_dof_iterator_selector_h
+
+
+#include <base/config.h>
+
+template <int celldim, int dim> class MGDoFAccessor;
+template <int celldim, int dim> class MGDoFObjectAccessor;
+template <int dim>              class MGDoFObjectAccessor<0, dim>;
+template <int dim>              class MGDoFObjectAccessor<1, dim>;
+template <int dim>              class MGDoFObjectAccessor<2, dim>;
+template <int dim>              class MGDoFObjectAccessor<3, dim>;
+template <int dim> class MGDoFCellAccessor;
+
+
+namespace internal
+{
+  namespace MGDoFHandler
+  {
+/*!@addtogroup mg */
+/*@{*/
+
+/**
+ * Depending on the dimension, this class defines the iterator types for
+ * MGDoFHandler objects.
+ *
+ * @note The typedefs in this class are only for reference. Their real
+ * values are to be found in the specializations for different
+ * dimensions.
+ */
+    template <int dim>
+    class Iterators
+    {
+                                         /// Line iterator for internal use
+        typedef void * raw_line_iterator;
+                                         /// Line iterator for all lines of hierarchy
+        typedef void * line_iterator;
+                                         /// Iterator for active lines
+        typedef void * active_line_iterator;
+    
+                                         /// Quad iterator for internal use
+        typedef void * raw_quad_iterator;
+                                         /// Quad iterator for all quadrilaterals of hierarchy
+        typedef void * quad_iterator;
+                                         /// Iterator for active quadrilaterals
+        typedef void * active_quad_iterator;
+
+                                         /// Hex iterator for internal use
+        typedef void * raw_hex_iterator;
+                                         /// Hex iterator for all hexahedra of hierarchy
+        typedef void * hex_iterator;
+                                         /// Iterator for active hexahedra
+        typedef void * active_hex_iterator;
+
+                                         /** Cell iterator for internal
+                                          * use. It is defined as one of
+                                          * the raw iterators above,
+                                          * depending on the dimension.
+                                          */
+        typedef void * raw_cell_iterator;
+                                         /** Cell iterator for all cells
+                                          * of hierarchy. It is defined as
+                                          * one of the iterators above,
+                                          * depending on the dimension.
+                                          */
+        typedef void * cell_iterator;
+                                         /** Iterator for active cells. It
+                                          * is defined as one of the
+                                          * active iterators above,
+                                          * depending on the dimension.
+                                          */
+        typedef void * active_cell_iterator;
+
+                                         /** Face iterator for internal
+                                          * use. It is defined as one of
+                                          * the raw iterators above,
+                                          * depending on the dimension.
+                                          */
+        typedef void * raw_face_iterator;
+                                         /** Face iterator for all faces
+                                          * of hierarchy. It is defined as
+                                          * one of the iterators above,
+                                          * depending on the dimension.
+                                          */
+        typedef void * face_iterator;
+                                         /** Iterator for active faces. It
+                                          * is defined as one of the
+                                          * active iterators above,
+                                          * depending on the dimension.
+                                          */
+        typedef void * active_face_iterator;
+    };
+
+
+
+/**
+ * Iterators for MGDofHandler in one dimension. See the template
+ * Iterators for further explanation.
+ */
+    template <>
+    class Iterators<1>
+    {
+      public:
+        typedef TriaRawIterator<1,MGDoFCellAccessor<1> >    raw_line_iterator;
+        typedef TriaIterator<1,MGDoFCellAccessor<1> >       line_iterator;
+        typedef TriaActiveIterator<1,MGDoFCellAccessor<1> > active_line_iterator;
+
+        typedef void * raw_quad_iterator;
+        typedef void * quad_iterator;
+        typedef void * active_quad_iterator;
+
+        typedef void * raw_hex_iterator;
+        typedef void * hex_iterator;
+        typedef void * active_hex_iterator;
+
+        typedef raw_line_iterator    raw_cell_iterator;
+        typedef line_iterator        cell_iterator;
+        typedef active_line_iterator active_cell_iterator;
+
+        typedef void * raw_face_iterator;
+        typedef void * face_iterator;
+        typedef void * active_face_iterator;
+    };
+
+
+
+/**
+ * Iterators for MGDofHandler in one dimension. See the template
+ * Iterators for further explanation.
+ */
+    template <>
+    class Iterators<2>
+    {
+      public:
+        typedef TriaRawIterator<2,MGDoFObjectAccessor<1, 2> >    raw_line_iterator;
+        typedef TriaIterator<2,MGDoFObjectAccessor<1, 2> >       line_iterator;
+        typedef TriaActiveIterator<2,MGDoFObjectAccessor<1, 2> > active_line_iterator;
+    
+        typedef TriaRawIterator<2,MGDoFCellAccessor<2> >         raw_quad_iterator;
+        typedef TriaIterator<2,MGDoFCellAccessor<2> >            quad_iterator;
+        typedef TriaActiveIterator<2,MGDoFCellAccessor<2> >      active_quad_iterator;
+
+        typedef void * raw_hex_iterator;
+        typedef void * hex_iterator;
+        typedef void * active_hex_iterator;
+
+        typedef raw_quad_iterator    raw_cell_iterator;
+        typedef quad_iterator        cell_iterator;
+        typedef active_quad_iterator active_cell_iterator;
+
+        typedef raw_line_iterator    raw_face_iterator;
+        typedef line_iterator        face_iterator;
+        typedef active_line_iterator active_face_iterator;    
+    };
+
+
+
+/**
+ * Iterators for MGDofHandler in one dimension. See the template
+ * Iterators for further explanation.
+ */
+    template <>
+    class Iterators<3>
+    {
+      public:
+        typedef TriaRawIterator<3,MGDoFObjectAccessor<1, 3> >    raw_line_iterator;
+        typedef TriaIterator<3,MGDoFObjectAccessor<1, 3> >       line_iterator;
+        typedef TriaActiveIterator<3,MGDoFObjectAccessor<1, 3> > active_line_iterator;
+
+        typedef TriaRawIterator<3,MGDoFObjectAccessor<2, 3> >    raw_quad_iterator;
+        typedef TriaIterator<3,MGDoFObjectAccessor<2, 3> >       quad_iterator;
+        typedef TriaActiveIterator<3,MGDoFObjectAccessor<2, 3> > active_quad_iterator;
+
+        typedef TriaRawIterator<3,MGDoFCellAccessor<3> >               raw_hex_iterator;
+        typedef TriaIterator<3,MGDoFCellAccessor<3> >                  hex_iterator;
+        typedef TriaActiveIterator<3,MGDoFCellAccessor<3> >            active_hex_iterator;
+
+        typedef raw_hex_iterator    raw_cell_iterator;
+        typedef hex_iterator        cell_iterator;
+        typedef active_hex_iterator active_cell_iterator;
+
+        typedef raw_quad_iterator    raw_face_iterator;
+        typedef quad_iterator        face_iterator;
+        typedef active_quad_iterator active_face_iterator;    
+    };
+  }
+}
+
+
+#endif
+/*----------------------------   mg_dof_iterator_selector.h     ---------------------------*/