/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbCore module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#ifndef HBSTYLEVALUE_H

#define HBSTYLEVALUE_H

template<typename T>

class HbStyleValue

{

public:

    HbStyleValue();

    ~HbStyleValue();

    bool isSet() const;

    T value() const;

    operator T() const;

    void operator=(const T &value);

private:

    bool mSet;

    T mVal;

};

template<typename T>

HbStyleValue<T>::HbStyleValue() : mSet(false)

{

}

template<typename T>

HbStyleValue<T>::~HbStyleValue()

{

}

template<typename T>

bool HbStyleValue<T>::isSet() const

{

    return mSet;

}

template<typename T>

T HbStyleValue<T>::value() const

{

    Q_ASSERT(mSet);

    return mVal;

}

template<typename T>

HbStyleValue<T>::operator T() const

{

    Q_ASSERT(mSet);

    return mVal;

}

template<typename T>

void HbStyleValue<T>::operator=(const T &value)

{

    mVal = value;

    mSet = true;

}

#endif // HBSTYLEVALUE_H