showfotothumbnailmodel.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2013-07-22
 * Description : Qt item model for Showfoto thumbnails entries
 *
 * Copyright (C) 2013 by Mohamed_Anwer <m_dot_anwer at gmx dot com>
 *
 * 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 SHOW_FOTO_THUMB_NAIL_MODEL_H
#define SHOW_FOTO_THUMB_NAIL_MODEL_H
 
// Local Include
 
#include "showfotoitemmodel.h"
#include "thumbnailsize.h"
#include "loadingdescription.h"
#include "thumbnailloadthread.h"
 
using namespace Digikam;
 
namespace ShowFoto
{
 
typedef QPair<ShowfotoItemInfo, QPixmap> CachedItem;
 
class ShowfotoThumbnailModel : public ShowfotoItemModel
{
    Q_OBJECT
 
public:
 
    explicit ShowfotoThumbnailModel(QObject* const parent);
    ~ShowfotoThumbnailModel()                                                                     override;
 
    void setThumbnailLoadThread(ThumbnailLoadThread* thread);
    ThumbnailLoadThread* thumbnailLoadThread()                                              const;
 
    void setThumbnailSize(const ThumbnailSize& thumbSize);
 
    void setPreloadThumbnailSize(const ThumbnailSize& thumbSize);
 
    void setExifRotate(bool rotate);
 
    void setEmitDataChanged(bool emitSignal);
 
    void setPreloadThumbnails(bool preload);
 
    ThumbnailSize thumbnailSize()                                                           const;
 
    QVariant data(const QModelIndex& index, int role = Qt::DisplayRole)                     const override;
 
    bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::DisplayRole)     override;
 
    bool pixmapForItem(const QString& url, QPixmap& pix)                                    const;
    bool getThumbnail(const ShowfotoItemInfo& itemInfo, QImage& thumbnail)                  const;
 
public Q_SLOTS:
 
    void slotThumbInfoLoaded(const ShowfotoItemInfo& info, const QImage& thumbnailImage);
 
Q_SIGNALS:
 
    void thumbnailAvailable(const QModelIndex& index, int requestedSize);
    void thumbnailFailed(const QModelIndex& index, int requestedSize);
 
    void signalThumbInfo(const ShowfotoItemInfo& info, const QImage& thumbnailImage)        const;   // clazy:exclude=const-signal-or-slot
 
    void signalItemThumbnail(const ShowfotoItemInfo& info, const QPixmap& pix);
 
protected:
 
    void showfotoItemInfosCleared()                                                               override;
 
protected Q_SLOTS:
 
    void slotThumbnailLoaded(const LoadingDescription& loadingDescription,
                             const QPixmap& thumb);
 
private:
 
    // Disable
    ShowfotoThumbnailModel(const ShowfotoThumbnailModel&)            = delete;
    ShowfotoThumbnailModel& operator=(const ShowfotoThumbnailModel&) = delete;
 
private:
 
    class Private;
    Private* const d;
};
 
} // namespace ShowFoto
 
#endif // SHOW_FOTO_THUMB_NAIL_MODEL_H