qt-everywhere-src-5.15.1/qtlocation/src/location/maps/qnavigationmanager.cpp

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**
** Copyright (C) 2018 The Qt Company Ltd.
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** This file is part of the QtLocation module of the Qt Toolkit.
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#include "qnavigationmanager_p.h"
#include "qnavigationmanagerengine_p.h"

QT_BEGIN_NAMESPACE

class QNavigationManagerPrivate
{
public:
    QNavigationManagerPrivate();
    ~QNavigationManagerPrivate();

    QNavigationManagerEngine *engine = nullptr;

private:
    Q_DISABLE_COPY(QNavigationManagerPrivate)
};

QNavigationManagerPrivate::QNavigationManagerPrivate()
{

}

QNavigationManagerPrivate::~QNavigationManagerPrivate()
{
    delete engine;
    engine = nullptr;
}

QNavigationManager::~QNavigationManager()
{
    delete d_ptr;
}

QString QNavigationManager::managerName() const
{
    return d_ptr->engine->managerName();
}

int QNavigationManager::managerVersion() const
{
    return d_ptr->engine->managerVersion();
}

QNavigationManagerEngine *QNavigationManager::engine()
{
    return d_ptr->engine;
}

bool QNavigationManager::isInitialized() const
{
    return d_ptr->engine->isInitialized();
}

void QNavigationManager::setLocale(const QLocale &locale)
{
    d_ptr->engine->setLocale(locale);
}

QLocale QNavigationManager::locale() const
{
    return d_ptr->engine->locale();
}

void QNavigationManager::setMeasurementSystem(QLocale::MeasurementSystem system)
{
    d_ptr->engine->setMeasurementSystem(system);
}

QLocale::MeasurementSystem QNavigationManager::measurementSystem() const
{
    return d_ptr->engine->measurementSystem();
}

QAbstractNavigator *QNavigationManager::createNavigator(const QSharedPointer<QDeclarativeNavigatorParams> &navigator)
{
    return d_ptr->engine->createNavigator(navigator);
}

QNavigationManager::QNavigationManager(QNavigationManagerEngine *engine, QObject *parent) : QObject(parent),
    d_ptr(new QNavigationManagerPrivate)
{
    d_ptr->engine = engine;
    if (!d_ptr->engine) {
        qFatal("The navigation manager engine that was set for this mapping manager was NULL.");
    }

    connect(d_ptr->engine,
            SIGNAL(initialized()),
            this,
            SIGNAL(initialized()),
            Qt::QueuedConnection);
}

QT_END_NAMESPACE