/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** General Public License version 3 as published by the Free Software
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** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
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** included in the packaging of this file. Please review the following
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****************************************************************************/

#ifndef DESIGNERWINDOWMANAGER_P_H
#define DESIGNERWINDOWMANAGER_P_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 <QtCore/QScopedPointer>

#include <private/qsgrenderloop_p.h>
#include <private/qtquickglobal_p.h>
#include <private/qsgcontext_p.h>

#if QT_CONFIG(opengl)
# include <QOpenGLContext>
#endif

QT_BEGIN_NAMESPACE

class QQuickWindow;
class QSGContext;
class QSGDefaultRenderContext;
class QAnimationDriver;

class QQuickDesignerWindowManager : public QSGRenderLoop
{
    Q_OBJECT
public:
    QQuickDesignerWindowManager();

    void show(QQuickWindow *window) override;
    void hide(QQuickWindow *window) override;

    void windowDestroyed(QQuickWindow *window) override;

    void makeOpenGLContext(QQuickWindow *window);
    void exposureChanged(QQuickWindow *window) override;
    QImage grab(QQuickWindow *window) override;

    void maybeUpdate(QQuickWindow *window) override;
    void update(QQuickWindow *window) override; // identical for this implementation.

    void releaseResources(QQuickWindow *) override { }

    QAnimationDriver *animationDriver() const override { return nullptr; }

    QSGContext *sceneGraphContext() const override;
    QSGRenderContext *createRenderContext(QSGContext *) const override { return m_renderContext.data(); }

    static void createOpenGLContext(QQuickWindow *window);

private:
#if QT_CONFIG(opengl)
    QScopedPointer<QOpenGLContext> m_openGlContext;
#endif
    QScopedPointer<QSGContext> m_sgContext;
    QScopedPointer<QSGRenderContext> m_renderContext;
};

QT_END_NAMESPACE

#endif // DESIGNERWINDOWMANAGER_P_H
