Clementine-audio-player-Mac.../src/albumcoverfetcher.h

71 lines
1.7 KiB
C++

/* This file is part of Clementine.
Clementine is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Clementine is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ALBUMCOVERFETCHER_H
#define ALBUMCOVERFETCHER_H
#include <QImage>
#include <QMap>
#include <QNetworkAccessManager>
#include <QObject>
#include <QQueue>
#include <lastfm/Album>
#include <boost/scoped_ptr.hpp>
class QNetworkReply;
class QString;
class AlbumCoverFetcher : public QObject {
Q_OBJECT
public:
AlbumCoverFetcher(QNetworkAccessManager* network, QObject* parent = 0);
virtual ~AlbumCoverFetcher() {}
static const int kMaxConcurrentRequests;
quint64 FetchAlbumCover(const QString& artist, const QString& album);
void Clear();
signals:
void AlbumCoverFetched(quint64, const QImage& cover);
private slots:
void AlbumGetInfoFinished();
void AlbumCoverFetchFinished();
void StartRequests();
private:
struct QueuedRequest {
quint64 id;
QString artist;
QString album;
};
QNetworkAccessManager* network_;
quint64 next_id_;
QQueue<QueuedRequest> queued_requests_;
QMap<QNetworkReply*, quint64> active_requests_;
QTimer* request_starter_;
};
#endif // ALBUMCOVERFETCHER_H