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/****************************************************************************
**
** Copyright (C) 2019 Luxoft Sweden AB
** Copyright (C) 2018 Pelagicore AG
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtIvi module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL-QTAS$
** Commercial License Usage
** Licensees holding valid commercial Qt Automotive Suite 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.
**
** $QT_END_LICENSE$
**
** SPDX-License-Identifier: LGPL-3.0
**
****************************************************************************/
#ifndef QIVIQMLCONVERSION_HELPER_H
#define QIVIQMLCONVERSION_HELPER_H
#include <QtIviCore/qtiviglobal.h>
#include <QtCore/QMetaEnum>
#include <QtCore/QVariant>
#include <QtCore/QVector>
#include <QtCore/QtDebug>
QT_BEGIN_NAMESPACE
Q_QTIVICORE_EXPORT void qtivi_qmlOrCppWarning(const QObject *obj, const char *errorString);
Q_QTIVICORE_EXPORT void qtivi_qmlOrCppWarning(const QObject *obj, const QString& errorString);
Q_QTIVICORE_EXPORT QVariant qtivi_convertFromJSON(const QVariant &val);
template <typename T> QVariant qtivi_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 qtivi_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(qtivi_convertValue<T>(val));
}
return list;
}
template <class T> const T *qtivi_gadgetFromVariant(const QObject *obj, const QVariant &var)
{
if (Q_UNLIKELY(!var.isValid())) {
qtivi_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))) {
qtivi_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();
}
qtivi_qmlOrCppWarning(obj, QLatin1String("The passed QVariant is not derived from ") + QLatin1String(T::staticMetaObject.className()));
return nullptr;
}
QT_END_NAMESPACE
#endif // QIVIQMLCONVERSION_HELPER_H
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