120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
/* This file is part of Clementine.
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Copyright 2010-2012, David Sansome <me@davidsansome.com>
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Copyright 2010-2012, 2014, John Maguire <john.maguire@gmail.com>
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Copyright 2011, Paweł Bara <keirangtp@gmail.com>
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Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.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 COVERS_ALBUMCOVERLOADER_H_
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#define COVERS_ALBUMCOVERLOADER_H_
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#include <QImage>
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#include <QMutex>
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#include <QObject>
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#include <QQueue>
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#include <QUrl>
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#include "albumcoverloaderoptions.h"
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#include "config.h"
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#include "core/song.h"
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class NetworkAccessManager;
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class QNetworkReply;
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class AlbumCoverLoader : public QObject {
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Q_OBJECT
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public:
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explicit AlbumCoverLoader(QObject* parent = nullptr);
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void Stop() { stop_requested_ = true; }
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static QString ImageCacheDir();
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quint64 LoadImageAsync(const AlbumCoverLoaderOptions& options,
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const Song& song);
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virtual quint64 LoadImageAsync(const AlbumCoverLoaderOptions& options,
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const QString& art_automatic,
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const QString& art_manual,
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const QString& song_filename = QString(),
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const QImage& embedded_image = QImage());
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void CancelTask(quint64 id);
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void CancelTasks(const QSet<quint64>& ids);
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static QPixmap TryLoadPixmap(const QString& automatic, const QString& manual,
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const QString& filename = QString());
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static QImage ScaleAndPad(const AlbumCoverLoaderOptions& options,
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const QImage& image);
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signals:
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void ImageLoaded(quint64 id, const QImage& image);
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void ImageLoaded(quint64 id, const QImage& scaled, const QImage& original);
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protected slots:
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void ProcessTasks();
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void RemoteFetchFinished(QNetworkReply* reply);
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protected:
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enum State {
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State_TryingManual,
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State_TryingAuto,
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};
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struct Task {
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Task() : redirects(0) {}
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AlbumCoverLoaderOptions options;
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quint64 id;
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QString art_automatic;
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QString art_manual;
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QString song_filename;
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QImage embedded_image;
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State state;
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int redirects;
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};
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struct TryLoadResult {
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TryLoadResult(bool async, bool success, const QImage& i)
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: started_async(async), loaded_success(success), image(i) {}
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bool started_async;
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bool loaded_success;
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QImage image;
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};
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void ProcessTask(Task* task);
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void NextState(Task* task);
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TryLoadResult TryLoadImage(const Task& task);
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bool stop_requested_;
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QMutex mutex_;
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QQueue<Task> tasks_;
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QMap<QNetworkReply*, Task> remote_tasks_;
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QMap<QString, Task> remote_spotify_tasks_;
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quint64 next_id_;
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NetworkAccessManager* network_;
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bool connected_spotify_;
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static const int kMaxRedirects = 3;
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};
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#endif // COVERS_ALBUMCOVERLOADER_H_
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