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

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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

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** This file is part of the QtOpenVG module of the Qt Toolkit.

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** 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

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** 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

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** $QT_END_LICENSE$

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

#ifndef QVGCOMPOSITIONHELPER_H

#define QVGCOMPOSITIONHELPER_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 "qwindowsurface_vgegl_p.h"

QT_BEGIN_NAMESPACE

#if !defined(QVG_NO_SINGLE_CONTEXT) && !defined(QT_NO_EGL)

class QVGPaintEnginePrivate;

class QVGEGLWindowSurfacePrivate;

class Q_OPENVG_EXPORT QVGCompositionHelper

{

public:

    QVGCompositionHelper();

    virtual ~QVGCompositionHelper();

    void startCompositing(const QSize& screenSize);

    void endCompositing();

    void fillBackground(const QRegion& region, const QBrush& brush);

    void drawCursorPixmap(const QPixmap& pixmap, const QPoint& offset);

    void setScissor(const QRegion& region);

    void clearScissor();

private:

    QVGPaintEnginePrivate *d;

    QSize screenSize;

};

#endif

QT_END_NAMESPACE

#endif