CastingFunctionBinding.h

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//  »missingDescription«
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// SUMO, Simulation of Urban MObility; see http://sumo.sourceforge.net/
// Copyright (C) 2001-2011 DLR (http://www.dlr.de/) and contributors
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//
//   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 2 of the License, or
//   (at your option) any later version.
//
/****************************************************************************/
#ifndef CastingFunctionBinding_h
#define CastingFunctionBinding_h


// ===========================================================================
// included modules
// ===========================================================================
#ifdef _MSC_VER
#include <windows_config.h>
#else
#include <config.h>
#endif

#include <utils/common/ValueSource.h>


// ===========================================================================
// class definitions
// ===========================================================================
template< class T, typename R, typename O  >
class CastingFunctionBinding : public ValueSource<R> {
public:
    typedef O(T::* Operation)() const;

    CastingFunctionBinding(T* source, Operation operation) :
        mySource(source),
        myOperation(operation) {}

    ~CastingFunctionBinding() {}

    R getValue() const {
        return (R)(mySource->*myOperation)();
    }

    ValueSource<R> *copy() const {
        return new CastingFunctionBinding<T, R, O>(mySource, myOperation);
    }

    ValueSource<SUMOReal> *makeSUMORealReturningCopy() const {
        return new CastingFunctionBinding<T, SUMOReal, O>(mySource, myOperation);
    }

protected:

private:
    T* mySource;

    Operation myOperation;
};


#endif

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