/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:   Implementation to know the type of attribute.

*

*/

#include <e32def.h>

#include <osn/osnnew.h>

#include <alf/alfdataexception.h>

#include <alf/alfattributeexception.h>

#include "alf/alfattributevaluetype.h"

#include "alfenumvalue.h"

#include "alfrealvalue.h"

#include "alfstringvalue.h"

namespace Alf

    {

class AlfAttributeValueTypeImpl

    {

public:

    AlfAttributeValueTypeImpl()

        {

        mValueType = NULL;

        }

    ~AlfAttributeValueTypeImpl()

        {

        delete mValueType;

        }

    AlfAttributeValueType* mValueType;

    };

// ======== MEMBER FUNCTIONS ========

// ---------------------------------------------------------------------------

// Constructor.

// ---------------------------------------------------------------------------

//

AlfAttributeValueType::AlfAttributeValueType()

    {

    }

// ---------------------------------------------------------------------------

// Constructor.

// ---------------------------------------------------------------------------

//

OSN_EXPORT AlfAttributeValueType::AlfAttributeValueType(int aValue,

        TAlfUnit aUnit)

    {

    auto_ptr<AlfEnumValue> value(new (EMM) AlfEnumValue(aValue, aUnit));

    auto_ptr<AlfAttributeValueTypeImpl> valueType(

        new (EMM) AlfAttributeValueTypeImpl());

    mData.reset(valueType.release());       // ownership transferred

    mData->mValueType = value.release();    // ownership transferred

    }

// ---------------------------------------------------------------------------

// Constructor.

// ---------------------------------------------------------------------------

//

OSN_EXPORT AlfAttributeValueType::AlfAttributeValueType(float aValue,

        TAlfUnit aUnit)

    {

    auto_ptr<AlfRealValue> value(new (EMM) AlfRealValue(aValue, aUnit));

    auto_ptr<AlfAttributeValueTypeImpl> valueType(

        new (EMM) AlfAttributeValueTypeImpl());

    mData.reset(valueType.release());       // ownership transferred

    mData->mValueType = value.release();    // ownership transferred

    }

// ---------------------------------------------------------------------------

// Constructor.

// ---------------------------------------------------------------------------

//

OSN_EXPORT AlfAttributeValueType::AlfAttributeValueType(const UString& aValue)

    {

    auto_ptr<AlfStringValue> value(new (EMM) AlfStringValue(aValue));

    auto_ptr<AlfAttributeValueTypeImpl> valueType(

        new (EMM) AlfAttributeValueTypeImpl());

    mData.reset(valueType.release());       // ownership transferred

    mData->mValueType = value.release();    // ownership transferred

    }

// ---------------------------------------------------------------------------

// Destructor.

// ---------------------------------------------------------------------------

//

OSN_EXPORT AlfAttributeValueType::~AlfAttributeValueType()

    {

    }

// ---------------------------------------------------------------------------

// Gets the enum value.

// ---------------------------------------------------------------------------

//

OSN_EXPORT int AlfAttributeValueType::enumValue() const

    {

    return intValue();

    }

// ---------------------------------------------------------------------------

// Gets the string value.

// ---------------------------------------------------------------------------

//

OSN_EXPORT const UString& AlfAttributeValueType::stringValue() const

    {

    if (type() != EString)

        {

        ALF_THROW(AlfDataException,EInvalidAttributeValue,"AlfAttributeValueType")

        }

    return mData->mValueType->stringValue();

    }

// ---------------------------------------------------------------------------

// Gets the int value.

// ---------------------------------------------------------------------------

//

OSN_EXPORT int AlfAttributeValueType::intValue() const

    {

    if (type() != EInt)

        {

        ALF_THROW(AlfDataException,EInvalidAttributeValue,"AlfAttributeValueType")

        }

    return mData->mValueType->enumValue();

    }

// ---------------------------------------------------------------------------

// Gets the real value.

// ---------------------------------------------------------------------------

//

OSN_EXPORT float AlfAttributeValueType::realValue() const

    {

    if (type() != EFloat)

        {

        ALF_THROW(AlfDataException,EInvalidAttributeValue,"AlfAttributeValueType")

        }

    return mData->mValueType->realValue();

    }

// ---------------------------------------------------------------------------

// Gets the RGB value.

// ---------------------------------------------------------------------------

//

OSN_EXPORT float AlfAttributeValueType::rgbValue() const

    {

    return realValue();

    }

// ---------------------------------------------------------------------------

// Gets the type of the atrribute value.

// ---------------------------------------------------------------------------

//

OSN_EXPORT AlfAttributeValueType::Type AlfAttributeValueType::type() const

    {

    return mData->mValueType->type();

    }

// ---------------------------------------------------------------------------

// Gets the unit.

// ---------------------------------------------------------------------------

//

OSN_EXPORT TAlfUnit AlfAttributeValueType::unit() const

    {

    return mData->mValueType->unit();

    }

    } // Alf