/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QQUICKRENDERCONTROL_H
#define QQUICKRENDERCONTROL_H

#include <QtQuick/qtquickglobal.h>
#include <QtGui/QImage>

QT_BEGIN_NAMESPACE

class QQuickWindow;
class QOpenGLContext;
class QQuickRenderControlPrivate;
class QThread;

class Q_QUICK_EXPORT QQuickRenderControl : public QObject
{
    Q_OBJECT

public:
    QQuickRenderControl(QObject *parent = 0);
    ~QQuickRenderControl();

    void prepareThread(QThread *targetThread);
    void initialize(QOpenGLContext *gl);
    void invalidate();

    void polishItems();
    void render();
    bool sync();

    QImage grab();

    static QWindow *renderWindowFor(QQuickWindow *win, QPoint *offset = 0);
    virtual QWindow *renderWindow(QPoint *offset) { Q_UNUSED(offset); return 0; }

Q_SIGNALS:
    void renderRequested();
    void sceneChanged();

private:
    Q_DECLARE_PRIVATE(QQuickRenderControl)
};

QT_END_NAMESPACE

#endif // QQUICKRENDERCONTROL_H