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/****************************************************************************
**
** Copyright (C) 2019 Luxoft Sweden AB
** Copyright (C) 2018 Pelagicore AG
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtIvi module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL-QTAS$
** Commercial License Usage
** Licensees holding valid commercial Qt Automotive Suite licenses may use
** this file in accordance with the commercial license agreement provided
** with the Software or, alternatively, in accordance with the terms
** contained in a written agreement between you and The Qt Company. For
** licensing terms and conditions see https://www.qt.io/terms-conditions.
** For further information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
** SPDX-License-Identifier: LGPL-3.0
**
****************************************************************************/
#ifndef MEDIAINDEXERBACKEND_H
#define MEDIAINDEXERBACKEND_H
#include <QtIviMedia/QIviMediaIndexerControl>
#include <QtIviMedia/QIviMediaIndexerControlBackendInterface>
#include <QFutureWatcher>
#include <QQueue>
#include <QSqlDatabase>
QT_FORWARD_DECLARE_CLASS(QThreadPool);
class MediaIndexerBackend : public QIviMediaIndexerControlBackendInterface
{
Q_OBJECT
struct ScanData;
public:
explicit MediaIndexerBackend(const QSqlDatabase &database, QObject *parent = nullptr);
void initialize() override;
void pause() override;
void resume() override;
qreal progress() const;
QIviMediaIndexerControl::State state() const;
signals:
void indexingDone();
void removeFromQueue(int index);
public slots:
void addMediaFolder(const QString &path);
void removeMediaFolder(const QString &path);
private slots:
bool scanWorker(const MediaIndexerBackend::ScanData &scanData);
void onScanFinished();
private:
void scanNext();
void setProgress(qreal progress);
void setState(QIviMediaIndexerControl::State state);
QSqlDatabase m_db;
struct ScanData {
enum Operation {
Verify,
Add,
Remove
};
Operation operation = Add;
QString folder;
};
qreal m_progress;
QIviMediaIndexerControl::State m_state;
QQueue<ScanData> m_folderQueue;
QFutureWatcher<bool> m_watcher;
QThreadPool *m_threadPool;
};
#endif // MEDIAINDEXERBACKEND_H
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