Greens.h

/* Copyright 2018 Kristofer Björnson
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#ifndef COM_DAFER45_TBTK_PROPERTY_EXTRACTOR_GREENS
#define COM_DAFER45_TBTK_PROPERTY_EXTRACTOR_GREENS

#include "TBTK/Solver/Greens.h"
#include "TBTK/Property/Density.h"
#include "TBTK/Property/GreensFunction.h"
#include "TBTK/Property/LDOS.h"
#include "TBTK/Property/Magnetization.h"
#include "TBTK/Property/SpinPolarizedLDOS.h"
#include "TBTK/PropertyExtractor/PropertyExtractor.h"

//#include <initializer_list>
#include <iostream>

namespace TBTK{
namespace PropertyExtractor{

class Greens : public PropertyExtractor{
public:
    Greens(Solver::Greens &cSolver);

    virtual ~Greens();

    virtual void setEnergyWindow(
        double lowerBound,
        double upperBound,
        int energyResolution
    );

    virtual Property::Density calculateDensity(
        Index pattern,
        Index ranges
    );

    virtual Property::Density calculateDensity(
        std::vector<Index> patterns
    );

    virtual Property::LDOS calculateLDOS(
        std::vector<Index> patterns
    );
private:
    Solver::Greens *solver;

    virtual const Solver::Solver& getSolver() const;

    static void calculateDensityCallback(
        PropertyExtractor *cb_this,
        Property::Property &property,
        const Index &index,
        int offset,
        Information &information
    );

    static void calculateLDOSCallback(
        PropertyExtractor *cb_this,
        Property::Property &property,
        const Index &index,
        int offset,
        Information &information
    );
};

inline const Solver::Solver& Greens::getSolver() const{
    return *solver;
}

};  //End of namespace PropertyExtractor
};  //End of namespace TBTK

#endif