void QGeoTileFetcher::requestNextTile()
{
Q_D(QGeoTileFetcher);
QMutexLocker ml(&d->queueMutex_);
if (d->stopped_)
return;
if (d->queue_.isEmpty()) {
d->timer_->stop();
return;
}
QGeoTileSpec ts = d->queue_.takeFirst();
QGeoTiledMapReply *reply = getTileImage(ts);
if (reply->isFinished()) {
handleReply(reply, ts);
} else {
connect(reply,
SIGNAL(finished()),
this,
SLOT(finished()),
Qt::QueuedConnection);
d->invmap_.insert(ts, reply);
}
if (d->queue_.isEmpty())
d->timer_->stop();
}
void QGeoTileFetcher::cancelTileRequests(const QSet<QGeoTileSpec> &tiles)
{
Q_D(QGeoTileFetcher);
typedef QSet<QGeoTileSpec>::const_iterator tile_iter;
tile_iter tile = tiles.constBegin();
tile_iter end = tiles.constEnd();
for (; tile != end; ++tile) {
QGeoTiledMapReply *reply = d->invmap_.value(*tile, 0);
if (reply) {
d->invmap_.remove(*tile);
reply->abort();
if (reply->isFinished())
reply->deleteLater();
}
d->queue_.removeAll(*tile);
}
}
void QGeoTileFetcher::finished()
{
Q_D(QGeoTileFetcher);
QMutexLocker ml(&d->queueMutex_);
QGeoTiledMapReply *reply = qobject_cast<QGeoTiledMapReply *>(sender());
if (!reply)
return;
QGeoTileSpec spec = reply->tileSpec();
if (!d->invmap_.contains(spec)) {
reply->deleteLater();
return;
}
d->invmap_.remove(spec);
handleReply(reply, spec);
}
