qt-everywhere-src-5.14.1/qtdeclarative/src/quick/designer/qquickdesignerwindowmanager_p.h

/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** 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
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#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 <QtGui/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