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// Copyright (C) 2016 Aaron McCarthy <mccarthy.aaron@gmail.com>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qgeotilefetcherosm.h"
#include "qgeomapreplyosm.h"
#include <QtNetwork/QNetworkAccessManager>
#include <QtNetwork/QNetworkRequest>
#include <QtLocation/private/qgeotilespec_p.h>
#include <QtLocation/private/qgeotilefetcher_p_p.h>
QT_BEGIN_NAMESPACE
static bool providersResolved(const QList<QGeoTileProviderOsm *> &providers)
{
for (const QGeoTileProviderOsm *provider : providers)
if (!provider->isResolved())
return false;
return true;
}
class QGeoTileFetcherOsmPrivate : public QGeoTileFetcherPrivate
{
Q_DECLARE_PUBLIC(QGeoTileFetcherOsm)
public:
QGeoTileFetcherOsmPrivate();
virtual ~QGeoTileFetcherOsmPrivate();
private:
Q_DISABLE_COPY(QGeoTileFetcherOsmPrivate)
};
QGeoTileFetcherOsmPrivate::QGeoTileFetcherOsmPrivate() : QGeoTileFetcherPrivate()
{
}
QGeoTileFetcherOsmPrivate::~QGeoTileFetcherOsmPrivate()
{
}
QGeoTileFetcherOsm::QGeoTileFetcherOsm(const QList<QGeoTileProviderOsm *> &providers,
QNetworkAccessManager *nm, QGeoMappingManagerEngine *parent)
: QGeoTileFetcher(*new QGeoTileFetcherOsmPrivate(), parent),
m_userAgent("Qt Location based application"),
m_providers(providers),
m_nm(nm),
m_ready(true)
{
m_nm->setParent(this);
for (QGeoTileProviderOsm *provider : m_providers) {
if (!provider->isResolved()) {
m_ready = false;
connect(provider, &QGeoTileProviderOsm::resolutionFinished,
this, &QGeoTileFetcherOsm::onProviderResolutionFinished);
connect(provider, &QGeoTileProviderOsm::resolutionError,
this, &QGeoTileFetcherOsm::onProviderResolutionError);
connect(provider, &QGeoTileProviderOsm::resolutionRequired,
this, &QGeoTileFetcherOsm::restartTimer, Qt::QueuedConnection);
provider->resolveProvider();
}
}
if (m_ready)
readyUpdated();
}
void QGeoTileFetcherOsm::setUserAgent(const QByteArray &userAgent)
{
m_userAgent = userAgent;
}
bool QGeoTileFetcherOsm::initialized() const
{
if (!m_ready) {
for (QGeoTileProviderOsm *provider : m_providers)
if (!provider->isResolved())
provider->resolveProvider();
}
return m_ready;
}
void QGeoTileFetcherOsm::onProviderResolutionFinished(const QGeoTileProviderOsm *provider)
{
if ((m_ready = providersResolved(m_providers))) {
qWarning("QGeoTileFetcherOsm: all providers resolved");
readyUpdated();
}
emit providerDataUpdated(provider);
}
void QGeoTileFetcherOsm::onProviderResolutionError(const QGeoTileProviderOsm *provider)
{
if ((m_ready = providersResolved(m_providers))) {
qWarning("QGeoTileFetcherOsm: all providers resolved");
readyUpdated();
}
emit providerDataUpdated(provider);
}
void QGeoTileFetcherOsm::restartTimer()
{
Q_D(QGeoTileFetcherOsm);
if (!d->queue_.isEmpty())
d->timer_.start(0, this);
}
QGeoTiledMapReply *QGeoTileFetcherOsm::getTileImage(const QGeoTileSpec &spec)
{
int id = spec.mapId();
if (id < 1 || id > m_providers.size()) {
qWarning("Unknown map id %d\n", spec.mapId());
if (m_providers.isEmpty())
return nullptr;
else
id = 1;
}
id -= 1; // TODO: make OSM map ids start from 0.
if (spec.zoom() > m_providers[id]->maximumZoomLevel() || spec.zoom() < m_providers[id]->minimumZoomLevel())
return nullptr;
const QUrl url = m_providers[id]->tileAddress(spec.x(), spec.y(), spec.zoom());
QNetworkRequest request;
request.setHeader(QNetworkRequest::UserAgentHeader, m_userAgent);
request.setUrl(url);
QNetworkReply *reply = m_nm->get(request);
return new QGeoMapReplyOsm(reply, spec, m_providers[id]->format());
}
void QGeoTileFetcherOsm::readyUpdated()
{
updateTileRequests(QSet<QGeoTileSpec>(), QSet<QGeoTileSpec>());
}
QT_END_NAMESPACE
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