/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtOpenVG module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QWINDOWSURFACE_VGEGL_P_H+
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#define QWINDOWSURFACE_VGEGL_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists for the convenience+
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// of the QLibrary class.  This header file may change from+
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// version to version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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+
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#include <QtGui/private/qwindowsurface_p.h>+
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#include "qvg_p.h"+
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+
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#if !defined(QT_NO_EGL)+
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+
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#include <QtGui/private/qegl_p.h>+
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+
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QT_BEGIN_NAMESPACE+
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+
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class QWindowSurface;+
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+
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class Q_OPENVG_EXPORT QVGEGLWindowSurfacePrivate+
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{+
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public:+
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    QVGEGLWindowSurfacePrivate(QWindowSurface *win);+
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    virtual ~QVGEGLWindowSurfacePrivate();+
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+
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    QVGPaintEngine *paintEngine();+
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    virtual QEglContext *ensureContext(QWidget *widget) = 0;+
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    virtual void beginPaint(QWidget *widget) = 0;+
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    virtual void endPaint+
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        (QWidget *widget, const QRegion& region, QImage *image = 0) = 0;+
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    virtual VGImage surfaceImage() const;+
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    virtual QSize surfaceSize() const = 0;+
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    virtual bool supportsStaticContents() const { return false; }+
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    virtual bool scroll(QWidget *, const QRegion&, int, int) { return false; }+
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+
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private:+
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    QVGPaintEngine *engine;+
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+
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protected:+
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    QWindowSurface *winSurface;+
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+
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    void destroyPaintEngine();+
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    QSize windowSurfaceSize(QWidget *widget) const;+
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};+
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+
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#if defined(EGL_OPENVG_IMAGE) && !defined(QVG_NO_SINGLE_CONTEXT)+
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+
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#define QVG_VGIMAGE_BACKBUFFERS 1+
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+
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class Q_OPENVG_EXPORT QVGEGLWindowSurfaceVGImage : public QVGEGLWindowSurfacePrivate+
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{+
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public:+
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    QVGEGLWindowSurfaceVGImage(QWindowSurface *win);+
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    virtual ~QVGEGLWindowSurfaceVGImage();+
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+
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    QEglContext *ensureContext(QWidget *widget);+
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    void beginPaint(QWidget *widget);+
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    void endPaint(QWidget *widget, const QRegion& region, QImage *image);+
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    VGImage surfaceImage() const;+
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    QSize surfaceSize() const { return size; }+
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+
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protected:+
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    QEglContext *context;+
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    VGImage backBuffer;+
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    EGLSurface backBufferSurface;+
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    bool recreateBackBuffer;+
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    bool isPaintingActive;+
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    QSize size;+
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    EGLSurface windowSurface;+
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+
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    EGLSurface mainSurface() const;+
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};+
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+
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#endif // EGL_OPENVG_IMAGE+
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+
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class Q_OPENVG_EXPORT QVGEGLWindowSurfaceDirect : public QVGEGLWindowSurfacePrivate+
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{+
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public:+
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    QVGEGLWindowSurfaceDirect(QWindowSurface *win);+
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    virtual ~QVGEGLWindowSurfaceDirect();+
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+
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    QEglContext *ensureContext(QWidget *widget);+
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    void beginPaint(QWidget *widget);+
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    void endPaint(QWidget *widget, const QRegion& region, QImage *image);+
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    QSize surfaceSize() const { return size; }+
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    bool supportsStaticContents() const;+
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    bool scroll(QWidget *widget, const QRegion& area, int dx, int dy);+
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+
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protected:+
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    QEglContext *context;+
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    QSize size;+
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    bool isPaintingActive;+
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    bool needToSwap;+
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    EGLSurface windowSurface;+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif // !QT_NO_EGL+
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+
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#endif // QWINDOWSURFACE_VGEGL_P_H+
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