-- Created on: 1994-08-25
-- Created by: Jacques GOUSSARD
-- Copyright (c) 1994-1999 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.



class Modifier from BRepTools

	---Purpose: 

uses Shape               from TopoDS,
     Modification        from BRepTools,
     DataMapOfShapeShape from TopTools

raises NullObject   from Standard,
       NoSuchObject from Standard

is

    Create returns Modifier from BRepTools;
	---Purpose: Creates an empty Modifier.


    Create(S: Shape from TopoDS)
      	returns Modifier from BRepTools;
	---Purpose: Creates a modifier on the shape <S>.


    Create(S: Shape from TopoDS; M: Modification from BRepTools)
    	returns Modifier from BRepTools;
	---Purpose: Creates a modifier on  the shape <S>, and performs
	--          the modifications described by <M>.


    Init(me: in out; S: Shape from TopoDS)
    	is static;
	---Purpose: Initializes the modifier with the shape <S>.


    Perform(me: in out; M: Modification from BRepTools)
	---Purpose: Performs the modifications described by <M>.
    	raises NullObject from Standard 
        -- if the modifier has not been initialized with a shape.
    	is static;

    IsDone(me)
    
	---Purpose: Returns Standard_True if the modification has
	--          been computed successfully.
	--          
	---C++: inline
    	returns Boolean from Standard
	is static;
    

    ModifiedShape(me; S: Shape from TopoDS)
    	returns Shape from TopoDS
	---Purpose: Returns the modified shape corresponding to <S>.
	---C++: return const&
	---C++: inline
	raises NoSuchObject from Standard
               -- if S is not the initial shape or a sub-shape
               -- of the initial shape.

	is static;

		 
    -- private implementation methods

    Put(me: in out; S: Shape from TopoDS)
    
    	is static private;


    Rebuild(me: in out; S: Shape from TopoDS; M: Modification from BRepTools) 
    	returns Boolean from Standard
    	is static private;


fields

    myMap  : DataMapOfShapeShape from TopTools;
    myShape: Shape               from TopoDS;
    myDone : Boolean             from Standard;

end Modifier;