importdragdrop.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2012-09-07
 * Description : Qt Model for ImportUI - drag and drop handling
 *
 * Copyright (C) 2012      by Islam Wazery <wazery at ubuntu dot com>
 * Copyright (C) 2013-2022 by Gilles Caulier <caulier dot gilles at gmail 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 DIGIKAM_IMPORT_DRAG_DROP_H
#define DIGIKAM_IMPORT_DRAG_DROP_H
 
// Qt includes
 
#include <QMenu>
 
// Local includes
 
#include "abstractitemdragdrophandler.h"
#include "importimagemodel.h"
#include "album.h"
#include "digikam_export.h"
 
namespace Digikam
{
 
class DIGIKAM_GUI_EXPORT ImportDragDropHandler : public AbstractItemDragDropHandler
{
    Q_OBJECT
 
public:
 
    explicit ImportDragDropHandler(ImportItemModel* const model);
 
    ImportItemModel* model()   const;
 
    bool           dropEvent(QAbstractItemView* view,
                             const QDropEvent* e,
                             const QModelIndex& droppedOn)      override;
 
    Qt::DropAction accepts(const QDropEvent* e,
                           const QModelIndex& dropIndex)        override;
 
    QStringList    mimeTypes() const                            override;
    QMimeData*     createMimeData(const QList<QModelIndex>&)    override;
 
private:
 
    enum DropAction
    {
        NoAction,
        CopyAction,
        MoveAction,
        GroupAction,
        AssignTagAction
    };
 
private:
 
    QAction*   addGroupAction(QMenu* const menu);
    QAction*   addCancelAction(QMenu* const menu);
    DropAction copyOrMove(const QDropEvent* e,
                          QWidget* const view,
                          bool allowMove = true,
                          bool askForGrouping = false);
};
 
} // namespace Digikam
 
#endif // DIGIKAM_IMPORT_DRAG_DROP_H