-------------------------------------------
-------------------------------------
--                                                                          --
--                           OCARINA COMPONENTS                             --
--                                                                          --
--            O C A R I N A . D I A . P R I N T E R . L A Y E R             --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--               Copyright (C) 2005-2006, GET-Telecom Paris.                --
--                                                                          --
-- Ocarina  is free software;  you  can  redistribute  it and/or  modify    --
-- it under terms of the GNU General Public License as published by the     --
-- Free Software Foundation; either version 2, or (at your option) any      --
-- later version. Ocarina is distributed  in  the  hope  that it will be    --
-- useful, but WITHOUT ANY WARRANTY;  without even the implied warranty of  --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General --
-- Public License for more details. You should have received  a copy of the --
-- GNU General Public License distributed with Ocarina; see file COPYING.   --
-- If not, write to the Free Software Foundation, 51 Franklin Street, Fifth --
-- Floor, Boston, MA 02111-1301, USA.                                       --
--                                                                          --
-- As a special exception,  if other files  instantiate  generics from this --
-- unit, or you link  this unit with other files  to produce an executable, --
-- this  unit  does not  by itself cause  the resulting  executable to be   --
-- covered  by the  GNU  General  Public  License. This exception does not  --
-- however invalidate  any other reasons why the executable file might be   --
-- covered by the GNU Public License.                                       --
--                                                                          --
--                 Ocarina is maintained by the Ocarina team                --
--                       (ocarina-users@listes.enst.fr)                     --
--                                                                          --
------------------------------------------------------------------------------

with Ada.Text_IO;
with DOM.Core;
with DOM.Core.Documents;
with DOM.Core.Nodes;
with DOM.Core.Elements;
with Ocarina.Nodes;
with Ocarina.Nutils;
with Ocarina.Dia.Printer.Objects;

package body Ocarina.Dia.Printer.Layer is

   -------------------------------------
   -- Find_Objects_AADL_Specification --
   -------------------------------------

   procedure Find_Objects_AADL_Specification
     (Doc         : DOM.Core.document;
      Parent_Node : DOM.Core.node;
      Node        : node_id;
      Id          : Integer;
      Parent      : Integer)
   is
      use Ocarina.Nutils;
      use Ada.Text_IO;
      use DOM.Core.Nodes;
      use DOM.Core.Documents;
      use DOM.Core.Elements;
      use Ocarina.Nodes;
      use Ocarina.Dia.Printer.Objects;

      pragma assert (Node /= No_Node);

      List_Node : node_id;
      Next_Id   : Integer := Id;
   begin
      if not Is_Empty (Declarations (Node)) then
         List_Node := First_Node (Declarations (Node));
         while Present (List_Node) loop
            case Kind (List_Node) is
               when k_component_type =>
                  Put_Line ("Component Type found");
                  Next_Id :=
                    Create_Component_Type
                      (Doc,
                       Parent_Node,
                       List_Node,
                       Next_Id,
                       Parent);
               when k_component_implementation =>
                  Next_Id :=
                    Create_Component_Implementation
                      (Doc,
                       Parent_Node,
                       List_Node,
                       Next_Id,
                       Parent);
                  Put_Line ("Component Implementation found");
               when k_port_group_type =>
                  Put_Line ("Port Group Type ignored");
               when k_package_specification =>
                  Put_Line ("Package Specification ignored");
               when k_property_set =>
                  Put_Line ("Property Set ignored");
               when others =>
                  raise Program_Error;
            end case;
            List_Node := Next_Node (List_Node);
         end loop;
      end if;
      --  TODO : finish this function
   end Find_Objects_AADL_Specification;

   -----------------------
   -- Find_Objects_Root --
   -----------------------

   procedure Find_Objects_Root
     (Doc         : DOM.Core.document;
      Parent_Node : DOM.Core.node;
      Node        : node_id;
      Id          : Integer;
      Parent      : Integer)
   is
      use DOM.Core.Nodes;
      use DOM.Core.Documents;
      use DOM.Core.Elements;
      use Ocarina.Dia.Printer.Objects;
      use Ocarina.Nodes;
      use Ada.Text_IO;

      pragma assert (Node /= No_Node);

      Next_Id : Integer;
      pragma warnings (Off, Next_Id);
   begin
      case Kind (Node) is
         when k_aadl_specification =>
            Put_Line ("AADL Specification found");
            Find_Objects_AADL_Specification
              (Doc,
               Parent_Node,
               Node,
               Id,
               Parent);
         when k_package_specification =>
            Put_Line ("Package Specification ignored");
         when k_component_type =>
            Put_Line ("Component Type found");
            Next_Id :=
              Create_Component_Type (Doc, Parent_Node, Node, Id, Parent);
         when k_component_implementation =>
            Put_Line ("Component Implementation ignored");
            Next_Id :=
              Create_Component_Implementation
                (Doc,
                 Parent_Node,
                 Node,
                 Id,
                 Parent);
         when k_port_group_type =>
            Put_Line ("Group Type ignored");
         when k_property_set =>
            Put_Line ("Property Set ignored");
         when others =>
            Put_Line ("sortie non attendue de l'arbre");
            null;
      end case;
   end Find_Objects_Root;

   ------------------
   -- Create_Layer --
   ------------------

   procedure Create_Layer
     (Doc         : DOM.Core.document;
      Parent_Node : DOM.Core.node;
      Node        : node_id)
   is
      use DOM.Core.Nodes;
      use DOM.Core.Documents;
      use DOM.Core.Elements;
      use Ocarina.Nodes;
      use Ada.Text_IO;

      XML_Node    : DOM.Core.node;
      XML_Element : constant DOM.Core.element :=
        Create_Element (Doc, "dia:layer");
   begin
      Set_Attribute (XML_Element, "name", "Background");
      Set_Attribute (XML_Element, "visible", "true");
      XML_Node := Append_Child (Parent_Node, XML_Element);
      Ada.Text_IO.Put_Line ("Creating Layer");
      Find_Objects_Root (Doc, XML_Node, Node, 0, -1);
      --  build a table "XML_Node", "Node_Id" ???
      --  Positioning Objects.
      --  Draw_Node_Simple (XML_Node, (3.0, 4.0));
      --  Optimize Position.
      --  Optimize_Node (Doc, XML_Node, Node);
   end Create_Layer;

end Ocarina.Dia.Printer.Layer;