lomiri-thumbnailer-qt.h

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/*
 * Copyright (C) 2015 Canonical Ltd.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Authored by: Xavi Garcia <xavi.garcia.mena@canonical.com>
 */
#pragma once
 
#include <QImage>
#include <QObject>
#include <QSharedPointer>
 
class QDBusConnection;
 
namespace lomiri
{
 
namespace thumbnailer
{
 
namespace qt
{
 
namespace internal
{
class ThumbnailerImpl;
class RequestImpl;
}

 
class Q_DECL_EXPORT Request : public QObject
{
    Q_OBJECT
public:
    Q_DISABLE_COPY(Request)

    ~Request();

    bool isFinished() const;

    QImage image() const;

    QString errorMessage() const;

    bool isValid() const;

    void waitForFinished();

    void cancel();

    bool isCancelled() const;
 
Q_SIGNALS:
    void finished();
 
private:
    QScopedPointer<internal::RequestImpl> p_;
    explicit Request(internal::RequestImpl* impl) Q_DECL_HIDDEN;
 
    friend class internal::ThumbnailerImpl;
};

 
class Q_DECL_EXPORT Thumbnailer final
{
public:
    Q_DISABLE_COPY(Thumbnailer)

    Thumbnailer();

    explicit Thumbnailer(QDBusConnection const& connection);

    ~Thumbnailer();

    QSharedPointer<Request> getAlbumArt(QString const& artist, QString const& album, QSize const& requestedSize);

    QSharedPointer<Request> getArtistArt(QString const& artist, QString const& album, QSize const& requestedSize);

    QSharedPointer<Request> getThumbnail(QString const& filePath, QSize const& requestedSize);
 
private:
    QScopedPointer<internal::ThumbnailerImpl> p_;
};
 
}  // namespace qt
 
}  // namespace thumbnailer
 
}  // namespace lomiri