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// Copyright (C) 2021 The Qt Company Ltd.
// Copyright (C) 2019 Luxoft Sweden AB
// Copyright (C) 2018 Pelagicore AG
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QIFQMLCONVERSION_HELPER_H
#define QIFQMLCONVERSION_HELPER_H
#include <QtInterfaceFramework/qtifglobal.h>
#include <QtCore/QMetaEnum>
#include <QtCore/QVariant>
#include <QtCore/QVector>
#include <QtCore/QtDebug>
QT_BEGIN_NAMESPACE
Q_QTINTERFACEFRAMEWORK_EXPORT void qtif_qmlOrCppWarning(const QObject *obj, const char *errorString);
Q_QTINTERFACEFRAMEWORK_EXPORT void qtif_qmlOrCppWarning(const QObject *obj, const QString& errorString);
Q_QTINTERFACEFRAMEWORK_EXPORT QVariant qtif_convertFromJSON(const QVariant &val);
template <typename T> QVariant qtif_convertValue(const T &val)
{
QVariant var;
int userType = qMetaTypeId<T>();
QMetaType metaType(userType);
const QMetaObject *mo = metaType.metaObject();
QString enumName = QString::fromLocal8Bit(metaType.name()).split(QStringLiteral("::")).last();
if (mo) {
QMetaEnum mEnum = mo->enumerator(mo->indexOfEnumerator(enumName.toLocal8Bit().constData()));
if (mEnum.isValid())
var = QVariant::fromValue<T>(val).toInt();
}
if (!var.isValid())
var = QVariant::fromValue<T>(val);
return var;
}
template <typename T> QVariantList qtif_convertAvailableValues(const QVector<T> &aValues)
{
QVariantList list;
list.reserve(aValues.size());
for (const T &val : aValues) {
//As QML doesn't support Enums in Lists we need to convert it to int
list.append(qtif_convertValue<T>(val));
}
return list;
}
template <class T> const T *qtif_gadgetFromVariant(const QObject *obj, const QVariant &var)
{
if (Q_UNLIKELY(!var.isValid())) {
qtif_qmlOrCppWarning(obj, "The passed QVariant is undefined");
return nullptr;
}
const void *data = var.constData();
QMetaType type(var.userType());
if (Q_UNLIKELY(!type.flags().testFlag(QMetaType::IsGadget))) {
qtif_qmlOrCppWarning(obj, "The passed QVariant needs to use the Q_GADGET macro");
return nullptr;
}
const QMetaObject *mo = type.metaObject();
while (mo) {
if (mo->className() == T::staticMetaObject.className())
return reinterpret_cast<const T*>(data);
mo = mo->superClass();
}
qtif_qmlOrCppWarning(obj, QLatin1String("The passed QVariant is not derived from ") + QLatin1String(T::staticMetaObject.className()));
return nullptr;
}
QT_END_NAMESPACE
#endif // QIFQMLCONVERSION_HELPER_H
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