// Created on: 1999-09-08
// Created by: Andrey BETENEV
// Copyright (c) 1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef _STEPConstruct_ValidationProps_HeaderFile
#define _STEPConstruct_ValidationProps_HeaderFile

#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>

#include <StepBasic_Unit.hxx>
#include <STEPConstruct_Tool.hxx>
#include <Standard_CString.hxx>
#include <TColStd_SequenceOfTransient.hxx>
class StepBasic_ProductDefinition;
class XSControl_WorkSession;
class TopoDS_Shape;
class StepRepr_RepresentationItem;
class StepRepr_CharacterizedDefinition;
class StepRepr_RepresentationContext;
class gp_Pnt;
class StepRepr_NextAssemblyUsageOccurrence;
class StepRepr_PropertyDefinition;


//! This class provides tools for access (write and read)
//! the validation properties on shapes in the STEP file.
//! These are surface area, solid volume and centroid.
class STEPConstruct_ValidationProps  : public STEPConstruct_Tool
{
public:

  DEFINE_STANDARD_ALLOC

  
  //! Creates an empty tool
  Standard_EXPORT STEPConstruct_ValidationProps();
  
  //! Creates a tool and loads it with worksession
  Standard_EXPORT STEPConstruct_ValidationProps(const Handle(XSControl_WorkSession)& WS);
  
  //! Load worksession; returns True if succeeded
  Standard_EXPORT Standard_Boolean Init (const Handle(XSControl_WorkSession)& WS);
  
  //! General method for adding (writing) a validation property
  //! for shape which should be already mapped on writing itself.
  //! It uses FindTarget() to find target STEP entity
  //! resulting from given shape, and associated context
  //! Returns True if success, False in case of fail
  Standard_EXPORT Standard_Boolean AddProp (const TopoDS_Shape& Shape, const Handle(StepRepr_RepresentationItem)& Prop, const Standard_CString Descr, const Standard_Boolean instance = Standard_False);
  
  //! General method for adding (writing) a validation property
  //! for shape which should be already mapped on writing itself.
  //! It takes target and Context entities which correspond to shape
  //! Returns True if success, False in case of fail
  Standard_EXPORT Standard_Boolean AddProp (const StepRepr_CharacterizedDefinition& target, const Handle(StepRepr_RepresentationContext)& Context, const Handle(StepRepr_RepresentationItem)& Prop, const Standard_CString Descr);
  
  //! Adds surface area property for given shape (already mapped).
  //! Returns True if success, False in case of fail
  Standard_EXPORT Standard_Boolean AddArea (const TopoDS_Shape& Shape, const Standard_Real Area);
  
  //! Adds volume property for given shape (already mapped).
  //! Returns True if success, False in case of fail
  Standard_EXPORT Standard_Boolean AddVolume (const TopoDS_Shape& Shape, const Standard_Real Vol);
  
  //! Adds centroid property for given shape (already mapped).
  //! Returns True if success, False in case of fail
  //! If instance is True, then centroid is assigned to
  //! an instance of component in assembly
  Standard_EXPORT Standard_Boolean AddCentroid (const TopoDS_Shape& Shape, const gp_Pnt& Pnt, const Standard_Boolean instance = Standard_False);
  
  //! Finds target STEP entity to which validation props should
  //! be assigned, and corresponding context, starting from shape
  //! Returns True if success, False in case of fail
  Standard_EXPORT Standard_Boolean FindTarget (const TopoDS_Shape& S, StepRepr_CharacterizedDefinition& target, Handle(StepRepr_RepresentationContext)& Context, const Standard_Boolean instance = Standard_False);
  
  //! Searches for entities of the type PropertyDefinitionRepresentation
  //! in the model and fills the sequence by them
  Standard_EXPORT Standard_Boolean LoadProps (TColStd_SequenceOfTransient& seq) const;
  
  //! Returns CDSR associated with given PpD or NULL if not found
  //! (when, try GetPropSDR)
  Standard_EXPORT Handle(StepRepr_NextAssemblyUsageOccurrence) GetPropNAUO (const Handle(StepRepr_PropertyDefinition)& PD) const;
  
  //! Returns SDR associated with given PpD or NULL if not found
  //! (when, try GetPropCDSR)
  Standard_EXPORT Handle(StepBasic_ProductDefinition) GetPropPD (const Handle(StepRepr_PropertyDefinition)& PD) const;
  
  //! Returns Shape associated with given SDR or Null Shape
  //! if not found
  Standard_EXPORT TopoDS_Shape GetPropShape (const Handle(StepBasic_ProductDefinition)& ProdDef) const;
  
  //! Returns Shape associated with given PpD or Null Shape
  //! if not found
  Standard_EXPORT TopoDS_Shape GetPropShape (const Handle(StepRepr_PropertyDefinition)& PD) const;
  
  //! Returns value of Real-Valued property (Area or Volume)
  //! If Property is neither Area nor Volume, returns False
  //! Else returns True and isArea indicates whether property
  //! is area or volume
  Standard_EXPORT Standard_Boolean GetPropReal (const Handle(StepRepr_RepresentationItem)& item, Standard_Real& Val, Standard_Boolean& isArea) const;
  
  //! Returns value of Centriod property (or False if it is not)
  Standard_EXPORT Standard_Boolean GetPropPnt (const Handle(StepRepr_RepresentationItem)& item, const Handle(StepRepr_RepresentationContext)& Context, gp_Pnt& Pnt) const;
  
  //! Sets current assembly shape SDR (for FindCDSR calls)
  Standard_EXPORT void SetAssemblyShape (const TopoDS_Shape& shape);




protected:





private:



  StepBasic_Unit areaUnit;
  StepBasic_Unit volUnit;
  Handle(StepBasic_ProductDefinition) myAssemblyPD;


};







#endif // _STEPConstruct_ValidationProps_HeaderFile