MassShape.h

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/*  YAP - Yet another PWA toolkit
    Copyright 2015, Technische Universitaet Muenchen,
    Authors: Daniel Greenwald, Johannes Rauch

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */


#ifndef yap_MassShape_h
#define yap_MassShape_h

#include "fwd/CachedValue.h"
#include "fwd/DataPartition.h"
#include "fwd/DecayChannel.h"
#include "fwd/Model.h"
#include "fwd/Parameter.h"
#include "fwd/ParticleCombination.h"
#include "fwd/ParticleFactory.h"
#include "fwd/Resonance.h"
#include "fwd/StatusManager.h"

#include "AmplitudeComponent.h"

#include <complex>
#include <memory>
#include <string>

namespace yap {

class MassShape : public RecalculableAmplitudeComponent
{
public:

    MassShape();

    virtual const std::complex<double> value(const DataPoint& d, const std::shared_ptr<ParticleCombination>& pc) const override final;

    virtual void calculate(DataPartition& D) const override final;

    virtual void setParameters(const ParticleTableEntry& entry)
    { }

    virtual bool consistent() const;

    Resonance* resonance() const
    { return Resonance_; }

    virtual void updateCalculationStatus(StatusManager& D) const override final;

    const Model* model() const override;

    virtual void checkDecayChannel(const DecayChannel& c) const
    {}

    friend class Resonance;

protected:

    virtual void setResonance(Resonance* r);

    virtual void addDecayChannel(std::shared_ptr<DecayChannel> c)
    {}

    std::shared_ptr<ComplexCachedValue> T()
    { return T_; }

    const std::shared_ptr<ComplexCachedValue> T() const
    { return const_cast<MassShape*>(this)->T(); }

    virtual void calculateT(DataPartition& D, const std::shared_ptr<ParticleCombination>& pc, unsigned si) const = 0;

private:

    Resonance* Resonance_;

    std::shared_ptr<ComplexCachedValue> T_;

};

}

#endif