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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
//! [RouteHandler]
class RouteHandler : public QObject
{
Q_OBJECT
public:
RouteHandler(QGeoRoutingManager *routingManager,
const QGeoCoordinate &origin,
const QGeoCoordinate &destination) {
QGeoRouteRequest request(origin, destination);
// The request defaults to the fastest route by car, which is
// equivalent to:
// request.setTravelMode(QGeoRouteRequest::CarTravel);
// request.setRouteOptimization(QGeoRouteRequest::FastestRoute);
request.setAvoidFeatureTypes(QGeoRouteRequest::AvoidTolls);
request.setAvoidFeatureTypes(QGeoRouteRequest::AvoidMotorPoolLanes);
QGeoRouteRequest::AvoidFeaturesTypes avoidableFeatures = routingManager->supportedAvoidFeatureTypes();
if (!(avoidableFeatures & request.avoidFeatureTypes())) {
// ... inform the user that the routing manager does not
// provide support for avoiding tolls and/or motor pool lanes ...
return;
}
QGeoRouteReply *reply = routingManager->calculateRoute(request);
if (reply->isFinished()) {
if (reply->error() == QGeoRouteReply::NoError) {
routeCalculated(reply);
} else {
routeError(reply, reply->error(), reply->errorString());
}
return;
}
connect(routingManager, &QGeoRoutingManager::finished,
this, &RouteHandler::routeCalculated);
connect(routingManager, &QGeoRoutingManager::errorOccurred,
this, &RouteHandler::routeError);
}
private slots:
void routeCalculated(QGeoRouteReply *reply)
{
// A route request can ask for several alternative routes ...
if (reply->routes().size() != 0) {
// ... but by default it will only get a single route
QGeoRoute route = reply->routes().at(0);
//... now we have to make use of the route ...
}
reply->deleteLater();
}
void routeError(QGeoRouteReply *reply, QGeoRouteReply:Error error, const QString &errorString)
{
// ... inform the user that an error has occurred ...
reply->deleteLater();
}
};
//! [RouteHandler]