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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, 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 qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QVFB_SHM_PROTOCOL_H
#define QVFB_SHM_PROTOCOL_H

#include "qvfbprotocol.h"

QT_BEGIN_NAMESPACE

class QVFbHeader;
class QTimer;
class QShMemViewProtocol : public QVFbViewProtocol
{
    Q_OBJECT
public:
    QShMemViewProtocol(int display_id, const QSize &size, int depth, QObject *parent = 0);
    ~QShMemViewProtocol();

    int width() const;
    int height() const;
    int depth() const;
    int linestep() const;
    int  numcols() const;
    QVector<QRgb> clut() const;
    unsigned char *data() const;
    int brightness() const;

    void setRate(int);
    int rate() const;

protected slots:
    void flushChanges();

protected:
    QVFbKeyProtocol *keyHandler() const { return kh; }
    QVFbMouseProtocol *mouseHandler() const { return mh; }

private:
    QVFbKeyPipeProtocol *kh;
    QVFbMousePipe *mh;
    QVFbHeader *hdr;
    size_t displaySize;
    unsigned char *dataCache;
    int lockId;
    int shmId;
    QTimer *mRefreshTimer;
    WId windowId;
};

QT_END_NAMESPACE

#endif