qsgcontextplugin_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QSGCONTEXTPLUGIN_H
#define QSGCONTEXTPLUGIN_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 <private/qtquickglobal_p.h>
#include <QtQuick/qquickimageprovider.h>
#include <QtCore/qplugin.h>
#include <QtCore/qfactoryinterface.h>
 
QT_BEGIN_NAMESPACE
 
class QSGContext;
 
class QSGRenderLoop;
 
struct Q_QUICK_EXPORT QSGContextFactoryInterface : public QFactoryInterface
{
    enum Flag {
        SupportsShaderEffectNode = 0x01
    };
    Q_DECLARE_FLAGS(Flags, Flag)
 
    virtual QSGContext *create(const QString &key) const = 0;
    virtual Flags flags(const QString &key) const = 0;
 
    virtual QQuickTextureFactory *createTextureFactoryFromImage(const QImage &image) = 0;
    virtual QSGRenderLoop *createWindowManager() = 0;
};
 
Q_DECLARE_OPERATORS_FOR_FLAGS(QSGContextFactoryInterface::Flags)
 
#define QSGContextFactoryInterface_iid
        "org.qt-project.Qt.QSGContextFactoryInterface"
Q_DECLARE_INTERFACE(QSGContextFactoryInterface, QSGContextFactoryInterface_iid)
 
class Q_QUICK_EXPORT QSGContextPlugin : public QObject, public QSGContextFactoryInterface
{
    Q_OBJECT
    Q_INTERFACES(QSGContextFactoryInterface:QFactoryInterface)
public:
    explicit QSGContextPlugin(QObject *parent = nullptr);
    virtual ~QSGContextPlugin();
 
    QStringList keys() const override = 0;
 
    QQuickTextureFactory *createTextureFactoryFromImage(const QImage &) override { return nullptr; }
    QSGRenderLoop *createWindowManager() override { return nullptr; }
};
 
QT_END_NAMESPACE
 
#endif // QSGCONTEXTPLUGIN_H