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

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** contained in the Technology Preview License Agreement accompanying

** this package.

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** ensure the GNU Lesser General Public License version 2.1 requirements

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

#ifndef QWINDOWSURFACE_GL_P_H

#define QWINDOWSURFACE_GL_P_H

//

//  W A R N I N G

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

//

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

// of the QLibrary class.  This header file may change from

// version to version without notice, or even be removed.

//

// We mean it.

//

#include <qglobal.h>

#include <qgl.h>

#include <private/qwindowsurface_p.h>

#include <private/qglpaintdevice_p.h>

QT_BEGIN_NAMESPACE

class QPaintDevice;

class QPoint;

class QRegion;

class QWidget;

struct QGLWindowSurfacePrivate;

class QGLWindowSurfaceGLPaintDevice : public QGLPaintDevice

{

public:

    QPaintEngine* paintEngine() const;

    void endPaint();

    QSize size() const;

    int metric(PaintDeviceMetric m) const;

    QGLContext* context() const;

    QGLWindowSurfacePrivate* d;

};

class QGLWindowSurface : public QObject, public QWindowSurface // , public QPaintDevice

{

    Q_OBJECT

public:

    QGLWindowSurface(QWidget *window);

    ~QGLWindowSurface();

    QPaintDevice *paintDevice();

    void flush(QWidget *widget, const QRegion &region, const QPoint &offset);

    void setGeometry(const QRect &rect);

    void updateGeometry();

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

    void beginPaint(const QRegion &region);

    void endPaint(const QRegion &region);

    QImage *buffer(const QWidget *widget);

    QGLContext *context() const;

    static QGLFormat surfaceFormat;

private slots:

    void deleted(QObject *object);

private:

    void hijackWindow(QWidget *widget);

    QGLWindowSurfacePrivate *d_ptr;

};

QT_END_NAMESPACE

#endif // QWINDOWSURFACE_GL_P_H