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

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/* 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 ALBUMCOVERLOADER_H
#define ALBUMCOVERLOADER_H
#include "backgroundthread.h"
#include <QObject>
#include <QImage>
#include <QMutex>
#include <QQueue>
class AlbumCoverLoader : public QObject {
Q_OBJECT
public:
AlbumCoverLoader(QObject* parent = 0);
void Stop() { stop_requested_ = true; }
static QString ImageCacheDir();
void SetDesiredHeight(int height) { height_ = height; }
quint64 LoadImageAsync(const QString& art_automatic, const QString& art_manual);
void Clear();
static QImage TryLoadImage(const QString& automatic, const QString& manual);
static QPixmap TryLoadPixmap(const QString& automatic, const QString& manual);
static const char* kManuallyUnsetCover;
signals:
void ImageLoaded(quint64 id, const QImage& image);
private slots:
void ProcessTasks();
private:
struct Task {
quint64 id;
QString art_automatic;
QString art_manual;
};
bool stop_requested_;
int height_;
QMutex mutex_;
QQueue<Task> tasks_;
quint64 next_id_;
};
#endif // ALBUMCOVERLOADER_H