// Created on: 2013-09-25
// Created by: Denis BOGOLEPOV
// Copyright (c) 2013-2014 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.

// =======================================================================
// function : As
// purpose  : Returns variable value casted to specified type
// =======================================================================
template <class T> inline
T& Graphic3d_ValueInterface::As()
{
  Graphic3d_UniformValue<T>* aPtr = dynamic_cast<Graphic3d_UniformValue<T>*> (this);
  return aPtr->Value;
}

// =======================================================================
// function : As
// purpose  : Returns variable value casted to specified type
// =======================================================================
template <class T> inline
const T& Graphic3d_ValueInterface::As() const
{
  const Graphic3d_UniformValue<T>* aPtr = dynamic_cast<const Graphic3d_UniformValue<T>*> (this);
  return aPtr->Value;
}

// =======================================================================
// function : TypeID
// purpose  : Returns unique identifier of value type
// =======================================================================
template <class T> inline
Standard_Size Graphic3d_UniformValue<T>::TypeID() const
{
  return Graphic3d_UniformValueTypeID<T>::ID;
}

// =======================================================================
// function : Create
// purpose  : Creates initialized shader variable
// =======================================================================
template<class T> inline
Graphic3d_ShaderVariable* Graphic3d_ShaderVariable::Create (const TCollection_AsciiString& theName,
                                                            const T&                       theValue)
{
  Graphic3d_ShaderVariable* theVariable = new Graphic3d_ShaderVariable (theName);
  theVariable->myValue = new Graphic3d_UniformValue<T> (theValue);
  return theVariable;
}