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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 QtGui module 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 QGRAPHICSSYSTEM_P_H
#define QGRAPHICSSYSTEM_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "private/qpixmapdata_p.h"
#include "private/qwindowsurface_p.h"
#include "private/qpaintengine_blitter_p.h"

#include <qdebug.h>

QT_BEGIN_NAMESPACE

class QPixmapFilter;

#ifdef Q_WS_LITE
class Q_GUI_EXPORT QGraphicsSystemScreen : public QObject
{
    Q_OBJECT
public:
    QGraphicsSystemScreen(QObject *parent = 0);
    virtual ~QGraphicsSystemScreen();

    virtual QRect geometry() const = 0;
    virtual QRect availableGeometry() const;
    virtual int depth() const = 0;
    virtual QImage::Format format() const = 0;
    virtual QSize physicalSize() const = 0;
    virtual void setDirty(const QRect &) {}
    virtual QWidget *topLevelAt(const QPoint &point) const;
};
#endif // Q_WS_LITE

class Q_GUI_EXPORT QGraphicsSystem
{
public:
    virtual QPixmapData *createPixmapData(QPixmapData::PixelType type) const = 0;
    virtual QWindowSurface *createWindowSurface(QWidget *widget) const = 0;
    virtual QBlittable *createBlittable(const QRect &rect) { return 0; }

    virtual ~QGraphicsSystem() = 0;

#ifdef Q_WS_LITE
    virtual QList<QGraphicsSystemScreen *> screens() const;
    virtual QPixmap grabWindow(WId window, int x, int y, int width, int height) const;
#endif
    //### Remove this & change qpixmap.cpp & qbitmap.cpp once every platform is gaurenteed
    //    to have a graphics system.
    static QPixmapData *createDefaultPixmapData(QPixmapData::PixelType type);
};

QT_END_NAMESPACE

#endif