83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
/* This file is part of Clementine.
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Copyright 2010, David Sansome <me@davidsansome.com>
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ALBUMCOVERFETCHER_H
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#define ALBUMCOVERFETCHER_H
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#include <QImage>
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#include <QMap>
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#include <QNetworkAccessManager>
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#include <QObject>
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#include <QQueue>
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#include <lastfm/Album>
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#include <boost/scoped_ptr.hpp>
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class QNetworkReply;
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class QString;
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class AlbumCoverFetcher : public QObject {
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Q_OBJECT
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public:
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AlbumCoverFetcher(QObject* parent = 0, QNetworkAccessManager* network = 0);
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virtual ~AlbumCoverFetcher() {}
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struct SearchResult {
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QString artist;
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QString album;
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QString image_url;
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};
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typedef QList<SearchResult> SearchResults;
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static const int kMaxConcurrentRequests;
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quint64 SearchForCovers(const QString& query);
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quint64 FetchAlbumCover(const QString& artist, const QString& album);
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void Clear();
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signals:
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void AlbumCoverFetched(quint64, const QImage& cover);
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void SearchFinished(quint64, const AlbumCoverFetcher::SearchResults& results);
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private slots:
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void AlbumSearchFinished();
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void AlbumCoverFetchFinished();
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void StartRequests();
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private:
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struct QueuedRequest {
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quint64 id;
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QString query;
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bool search;
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};
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void AddRequest(const QueuedRequest req);
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QNetworkAccessManager* network_;
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quint64 next_id_;
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QQueue<QueuedRequest> queued_requests_;
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QMap<QNetworkReply*, QueuedRequest> active_requests_;
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QTimer* request_starter_;
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};
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#endif // ALBUMCOVERFETCHER_H
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