qgeomapreplyohosmapkit.cpp

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// Copyright (C) 2025 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
 
#include <QtCore/qmetaobject.h>
#include <qgeomapreplyohosmapkit.h>
#include <qohosmapkitcommon.h>
 
QT_BEGIN_NAMESPACE
 
namespace {
 
const char pngSignature[] = "\x89PNG\r\n\x1a\n";
 
class QGeoMapReplyOhosMapKit : public QGeoTiledMapReply
{
public:
    explicit QGeoMapReplyOhosMapKit(
        QNetworkReply *reply, const QGeoTileSpec &spec, QObject *parent);
 
private:
    void onNetworkReplyFinished();
    void onNetworkReplyError(QNetworkReply::NetworkError error);
};
 
QGeoMapReplyOhosMapKit::QGeoMapReplyOhosMapKit(
    QNetworkReply *reply, const QGeoTileSpec &spec, QObject *parent)
    : QGeoTiledMapReply(spec, parent)
{
    if (reply == nullptr) {
        setError(QGeoTiledMapReply::UnknownError, OhosMapKit::msgNullReply());
        return;
    }
 
    connect(reply, &QNetworkReply::finished, this, &QGeoMapReplyOhosMapKit::onNetworkReplyFinished);
    connect(reply, &QNetworkReply::errorOccurred, this, &QGeoMapReplyOhosMapKit::onNetworkReplyError);
    connect(this, &QGeoTiledMapReply::aborted, reply, &QNetworkReply::abort);
    connect(this, &QObject::destroyed, reply, &QObject::deleteLater);
}
 
void QGeoMapReplyOhosMapKit::onNetworkReplyFinished()
{
    auto *reply = static_cast<QNetworkReply *>(sender());
    reply->deleteLater();
 
    if (reply->error() != QNetworkReply::NoError) {
        setError(
            QGeoTiledMapReply::CommunicationError,
            OhosMapKit::msgReplyError(reply->errorString()));
        return;
    }
 
    const auto imageData = reply->readAll();
 
    if (imageData.startsWith(pngSignature)) {
        setMapImageFormat(QStringLiteral("png"));
        setMapImageData(imageData);
        setFinished(true);
    } else {
        setError(QGeoTiledMapReply::ParseError, tr("Invalid format of tile data"));
    }
}
 
void QGeoMapReplyOhosMapKit::onNetworkReplyError(QNetworkReply::NetworkError error)
{
    auto *reply = static_cast<QNetworkReply *>(sender());
    reply->deleteLater();
    if (error == QNetworkReply::OperationCanceledError)
        setFinished(true);
    else
        setError(QGeoTiledMapReply::CommunicationError, reply->errorString());
}
 
}
 
QGeoTiledMapReply *makeGeoTiledMapReplyOhosMapKit(
    QNetworkReply *reply, const QGeoTileSpec &spec, QObject *parent)
{
    return new QGeoMapReplyOhosMapKit(reply, spec, parent);
}
 
QT_END_NAMESPACE