metaengine_previews.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2006-09-15
 * Description : Exiv2 library interface.
 *               Embedded preview loading.
 *
 * Copyright (C) 2006-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 * Copyright (C) 2006-2013 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
 *
 * This program 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 2, or (at your option)
 * any later version.
 *
 * 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.
 *
 * ============================================================ */
 
#ifndef META_ENGINE_PREVIEWS_H
#define META_ENGINE_PREVIEWS_H
 
// Qt includes
 
#include <QByteArray>
#include <QSize>
#include <QString>
#include <QImage>
 
// Local includes
 
#include "digikam_export.h"
 
namespace Digikam
{
 
class DIGIKAM_EXPORT MetaEnginePreviews
{
public:
 
    explicit MetaEnginePreviews(const QString& filePath);
 
    explicit MetaEnginePreviews(const QByteArray& imgData);
    ~MetaEnginePreviews();
 
    QSize originalSize()        const;
 
    QString originalMimeType()  const;
 
    bool       isEmpty();
 
    int        count()          const;
    int        size()           const;
 
    int        dataSize(int index = 0);
    int        width(int index = 0);
    int        height(int index = 0);
    QString    mimeType(int index = 0);
    QString    fileExtension(int index = 0);
 
    QByteArray data(int index = 0);
 
    QImage image(int index = 0);
 
private:
 
    // Disable
    MetaEnginePreviews(const MetaEnginePreviews&)            = delete;
    MetaEnginePreviews& operator=(const MetaEnginePreviews&) = delete;
 
private:
 
    class Private;
    Private* const d;
};
 
} // namespace Digikam
 
#endif // META_ENGINE_PREVIEWS_H