/*

* Copyright (c) 2009 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:

*

*  Version     : %version: 2 %

*/

#ifndef BUFFERMANAGERHELPER_H

#define BUFFERMANAGERHELPER_H

#include <hgwidgets/hgcacheproxymodel.h>

class BMHelper: public HgBufferManagerObserver

{

public:

    BMHelper(int totalSize);

    ~BMHelper();

    virtual void release(int start, int end);

    virtual void request(int start, int end, HgRequestOrder order = HgRequestOrderAscending);  

    bool isIntergal(int bufferSize);

    int totalSize();

    void resizeCache(int newSize);

    void remove(int pos);

    void insert(int pos);

private:    

    QList< bool > mBuffer;

};

#endif // BUFFERMANAGERHELPER_H