-- Created on: 1993-07-21
-- Created by: Remi LEQUETTE
-- Copyright (c) 1993-1999 Matra Datavision
-- Copyright (c) 1999-2012 OPEN CASCADE SAS
--
-- The content of this file is subject to the Open CASCADE Technology Public
-- License Version 6.5 (the "License"). You may not use the content of this file
-- except in compliance with the License. Please obtain a copy of the License
-- at http://www.opencascade.org and read it completely before using this file.
--
-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
--
-- The Original Code and all software distributed under the License is
-- distributed on an "AS IS" basis, without warranty of any kind, and the
-- Initial Developer hereby disclaims all such warranties, including without
-- limitation, any warranties of merchantability, fitness for a particular
-- purpose or non-infringement. Please see the License for the specific terms
-- and conditions governing the rights and limitations under the License.



deferred class MakeShape from BRepLib inherits Command from BRepLib

	---Purpose: This    is  the  root     class for     all  shape
	--          constructions.  It stores the result.
	--          
	--          It  provides deferred methods to trace the history
	--          of sub-shapes.

uses
    Shape             from TopoDS,
    Face              from TopoDS,
    Edge              from TopoDS,
    ShapeModification from BRepLib,
    ListOfShape       from TopTools
    
    
raises
    NotDone           from StdFail

is
    Initialize;
    
    Build(me : in out);
	---Purpose: This is  called by  Shape().  It does  nothing but
	--          may be redefined.
	---Level: Public
	
    Shape(me) returns Shape from TopoDS
	---C++: return const &
	---C++: alias "Standard_EXPORT operator TopoDS_Shape() const;"
	---Level: Public
    raises
    	NotDone from StdFail
    is static;


    -----------------------------------------------------------
    --- the following methods do nothing and must be redefined
    --- for faces creations.

    FaceStatus(me; F: Face from TopoDS) 
    	---Purpose: returns the status of the Face after
    	--          the shape creation. 
	---Level: Public
    returns ShapeModification from BRepLib
    is virtual;
    
    
    HasDescendants(me; F: Face from TopoDS)
    	---Purpose: Returns True if the Face generates new topology.
	---Level: Public
    returns Boolean from Standard
    is virtual;


    DescendantFaces(me: in out; F: Face from TopoDS)
    	---Purpose: returns the list of generated Faces.
    	---C++:     return const &
	---Level: Public
    returns ListOfShape from TopTools
    is virtual;
    
    
    NbSurfaces(me)
    	---Purpose: returns the number of surfaces
    	--          after the shape creation.
	---Level: Public
    returns Integer from Standard
    is virtual;


    NewFaces(me: in out; I: Integer from Standard) 
    	---Purpose: Return the faces created for surface I.
    	---C++:     return const &
	---Level: Public
    returns ListOfShape from TopTools
    is virtual;


    FacesFromEdges(me: in out; E: Edge from TopoDS)
    	---Purpose: returns a list of the created faces
    	--          from the edge <E>.
    	---C++:     return const &
	---Level: Public
    returns ListOfShape from TopTools
    is virtual;

    
fields
 
    myShape   : Shape         from TopoDS   is protected;
    myGenFaces: ListOfShape   from TopTools is protected;
    myNewFaces: ListOfShape   from TopTools is protected;
    myEdgFaces: ListOfShape   from TopTools is protected;
    
end MakeShape;