cxOptionalValue.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/

#ifndef CXOPTIONALVALUE_H
#define CXOPTIONALVALUE_H

#include "cxResourceExport.h"

namespace cx
{

template<class T> class cxResource_EXPORT OptionalValue
{
public:
        OptionalValue() : mValid(false) {}
        explicit OptionalValue(T val) : mValue(val), mValid(val) {}
        const T& get() const { return mValue; }
        void set(const T& val) { mValue=val; mValid=true; }
        bool isValid() const { return mValid; }
        void reset() { mValid=false; }
private:
        T mValue;
        bool mValid;
};


} // namespace cx


#endif // CXOPTIONALVALUE_H