identity_operator.hpp

// Copyright (C) 2011-2012 by the BEM++ Authors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// THE SOFTWARE.

#ifndef bempp_identity_operator_hpp
#define bempp_identity_operator_hpp

#include "../common/common.hpp"

#include "elementary_local_operator.hpp"

#include "abstract_boundary_operator_id.hpp"
#include <boost/scoped_ptr.hpp>

namespace Fiber
{

template <typename ResultType> class LocalAssemblerForOperators;
} // namespace Fiber

namespace Bempp
{

template <typename BasisFunctionType, typename ResultType> class BoundaryOperator;
template <typename BasisFunctionType, typename ResultType> class IdentityOperator;
template <typename BasisFunctionType, typename ResultType>
class BEMPP_DEPRECATED IdentityOperatorId : public AbstractBoundaryOperatorId
{
public:
    IdentityOperatorId(const IdentityOperator<BasisFunctionType, ResultType>& op);
    virtual size_t hash() const;
    virtual bool isEqual(const AbstractBoundaryOperatorId &other) const;

private:
    const Space<BasisFunctionType>* m_domain;
    const Space<BasisFunctionType>* m_range;
    const Space<BasisFunctionType>* m_dualToRange;
};

template <typename BasisFunctionType_, typename ResultType_>
class IdentityOperator :
        public ElementaryLocalOperator<BasisFunctionType_, ResultType_>
{
    typedef ElementaryLocalOperator<BasisFunctionType_, ResultType_> Base;
public:
    typedef typename Base::BasisFunctionType BasisFunctionType;
    typedef typename Base::ResultType ResultType;
    typedef typename Base::CoordinateType CoordinateType;
    typedef typename Base::QuadratureStrategy QuadratureStrategy;
    typedef typename Base::CollectionOfShapesetTransformations
    CollectionOfShapesetTransformations;
    typedef typename Base::CollectionOfBasisTransformations
    CollectionOfBasisTransformations;
    typedef typename Base::TestTrialIntegral TestTrialIntegral;

    IdentityOperator(const shared_ptr<const Space<BasisFunctionType> >& domain,
                     const shared_ptr<const Space<BasisFunctionType> >& range,
                     const shared_ptr<const Space<BasisFunctionType> >& dualToRange,
                     const std::string& label = "",
                     int symmetry = AUTO_SYMMETRY);
    virtual ~IdentityOperator();

    BEMPP_DEPRECATED virtual shared_ptr<const AbstractBoundaryOperatorId> id() const;

private:
    virtual const CollectionOfShapesetTransformations&
    testTransformations() const;

    virtual const CollectionOfShapesetTransformations&
    trialTransformations() const;

    virtual const TestTrialIntegral& integral() const;

private:
    shared_ptr<TestTrialIntegral> m_integral;
    shared_ptr<const AbstractBoundaryOperatorId> m_id;
};

template <typename BasisFunctionType, typename ResultType>
BoundaryOperator<BasisFunctionType, ResultType>
identityOperator(const shared_ptr<const Context<BasisFunctionType, ResultType> >& context,
                 const shared_ptr<const Space<BasisFunctionType> >& domain,
                 const shared_ptr<const Space<BasisFunctionType> >& range,
                 const shared_ptr<const Space<BasisFunctionType> >& dualToRange,
                 const std::string& label = "",
                 int symmetry = AUTO_SYMMETRY);

} // namespace Bempp

#endif