qqmldesignermetaobject_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 NODEINSTANCEMETAOBJECT_H
#define NODEINSTANCEMETAOBJECT_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 "qquickdesignersupport_p.h"
 
#include <QQmlContext>
#include <QScopedPointer>
#include <private/qqmlopenmetaobject_p.h>
#include <private/qqmlvmemetaobject_p.h>
 
#include <QtCore/qpointer.h>
 
#include <memory>
 
QT_BEGIN_NAMESPACE
 
struct MetaPropertyData;
 
class QQmlDesignerMetaObject : public QQmlVMEMetaObject
{
public:
    ~QQmlDesignerMetaObject();
 
    static void registerNotifyPropertyChangeCallBack(void (*callback)(QObject*, const QQuickDesignerSupport::PropertyName &propertyName));
 
protected:
    static QQmlDesignerMetaObject* getNodeInstanceMetaObject(QObject *object, QQmlEngine *engine);
 
    void createNewDynamicProperty(const QString &name);
    int openMetaCall(QObject *o, QMetaObject::Call _c, int _id, void **_a);
    int metaCall(QObject *o, QMetaObject::Call _c, int _id, void **_a) override;
    void notifyPropertyChange(int id);
    void setValue(int id, const QVariant &value);
    QVariant propertyWriteValue(int, const QVariant &);
 
    QObject *myObject() const { return QQmlVMEMetaObject::object; }
 
    QDynamicMetaObjectData *dynamicMetaObjectParent() const;
 
    const QMetaObject *metaObjectParent() const;
 
    int propertyOffset() const;
 
    int count() const;
    QByteArray name(int) const;
 
    void copyTypeMetaObject();
 
private:
    QQmlDesignerMetaObject(QObject *object, QQmlEngine *engine);
    void init(QObject *);
    QQmlOpenMetaObjectType *type() const { return m_openMetaObject->type(); }
 
    QPointer<QQmlContext> m_context;
    std::unique_ptr<QQmlOpenMetaObject> m_openMetaObject;
    QScopedPointer<MetaPropertyData> m_data;
 
    // This is non-const. You cannot use threads when using the designer metaobject.
    // Otherwise it's the same as QQmlVMEMetaObject's "cache" member.
    QQmlPropertyCache::Ptr m_cache;
 
    friend class QQuickDesignerSupportProperties;
};
 
QT_END_NAMESPACE
 
#endif // NODEINSTANCEMETAOBJECT_H