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

**

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

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the plugins 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_RUNTIME_P_H

#define QGRAPHICSSYSTEM_RUNTIME_P_H

//

//  W A R N I N G

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

//

// This file is not part of the Qt API.  It exists for the convenience

// of other Qt classes.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include "qgraphicssystem_p.h"

#include <private/qpixmapdata_p.h>

QT_BEGIN_NAMESPACE

class QRuntimeGraphicsSystem;

class Q_GUI_EXPORT QRuntimePixmapData : public QPixmapData {

public:

    QRuntimePixmapData(const QRuntimeGraphicsSystem *gs, PixelType type);

    ~QRuntimePixmapData();

    virtual QPixmapData *createCompatiblePixmapData() const;

    virtual void resize(int width, int height);

    virtual void fromImage(const QImage &image,

                           Qt::ImageConversionFlags flags);

    virtual bool fromFile(const QString &filename, const char *format,

                          Qt::ImageConversionFlags flags);

    virtual bool fromData(const uchar *buffer, uint len, const char *format,

                          Qt::ImageConversionFlags flags);

    virtual void copy(const QPixmapData *data, const QRect &rect);

    virtual bool scroll(int dx, int dy, const QRect &rect);

    virtual int metric(QPaintDevice::PaintDeviceMetric metric) const;

    virtual void fill(const QColor &color);

    virtual QBitmap mask() const;

    virtual void setMask(const QBitmap &mask);

    virtual bool hasAlphaChannel() const;

    virtual QPixmap transformed(const QTransform &matrix,

                                Qt::TransformationMode mode) const;

    virtual void setAlphaChannel(const QPixmap &alphaChannel);

    virtual QPixmap alphaChannel() const;

    virtual QImage toImage() const;

    virtual QPaintEngine *paintEngine() const;

    virtual QImage *buffer();

    void readBackInfo();

    QPixmapData *m_data;

#if defined(Q_OS_SYMBIAN)

    void* toNativeType(NativeType type);

    void fromNativeType(void* pixmap, NativeType type);

#endif

    virtual QPixmapData *runtimeData() const;

private:

    const QRuntimeGraphicsSystem *m_graphicsSystem;

};

class QRuntimeWindowSurface : public QWindowSurface {

public:

    QRuntimeWindowSurface(const QRuntimeGraphicsSystem *gs, QWidget *window);

    ~QRuntimeWindowSurface();

    virtual QPaintDevice *paintDevice();

    virtual void flush(QWidget *widget, const QRegion &region,

                       const QPoint &offset);

    virtual void setGeometry(const QRect &rect);

    virtual bool scroll(const QRegion &area, int dx, int dy);

    virtual void beginPaint(const QRegion &);

    virtual void endPaint(const QRegion &);

    virtual QImage* buffer(const QWidget *widget);

    virtual QPixmap grabWidget(const QWidget *widget, const QRect& rectangle = QRect()) const;

    virtual QPoint offset(const QWidget *widget) const;

private:

    const QRuntimeGraphicsSystem *m_graphicsSystem;

};

class QRuntimeGraphicsSystem : public QGraphicsSystem

{

public:

    enum WindowSurfaceDestroyPolicy

    {

        DestroyImmediately,

        DestroyAfterFirstFlush

    };

public:

    QRuntimeGraphicsSystem();

    QPixmapData *createPixmapData(QPixmapData::PixelType type) const;

    QWindowSurface *createWindowSurface(QWidget *widget) const;

    void removePixmapData(QRuntimePixmapData *pixmapData) const;

    void removeWindowSurface(QRuntimeWindowSurface *windowSurface) const;

    void setGraphicsSystem(const QString &name);

    QString graphicsSystemName() const { return m_graphicsSystemName; }

    void setWindowSurfaceDestroyPolicy(WindowSurfaceDestroyPolicy policy)

    {

        m_windowSurfaceDestroyPolicy = policy;

    }

    int windowSurfaceDestroyPolicy() const { return m_windowSurfaceDestroyPolicy; }

private:

    int m_windowSurfaceDestroyPolicy;

    QGraphicsSystem *m_graphicsSystem;

    mutable QList<QRuntimePixmapData *> m_pixmapDatas;

    mutable QList<QRuntimeWindowSurface *> m_windowSurfaces;

    QString m_graphicsSystemName;

    QString m_pendingGraphicsSystemName;

    friend class QRuntimePixmapData;

    friend class QRuntimeWindowSurface;

};

QT_END_NAMESPACE

#endif