removeemptyfoldersproxymodel.h

/*
  Copyright (c) 2016 Sergio Martins <iamsergio@gmail.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 of the License, 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.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

  As a special exception, permission is given to link this program
  with any edition of Qt, and distribute the resulting executable,
  without including the source code for Qt in the source distribution.
*/

#ifndef REMOVEEMPTYFOLDERSPROXYMODEL_H
#define REMOVEEMPTYFOLDERSPROXYMODEL_H

#include <QSortFilterProxyModel>

// Removes rows that are folders with no files in it
// Doing this in a second filter pass is much simpler than doing it all in the same proxy model

class RemoveEmptyFoldersProxyModel : public QSortFilterProxyModel
{
    Q_OBJECT
public:
    explicit RemoveEmptyFoldersProxyModel(QObject *parent = nullptr);
    void setAcceptsEmptyParents(bool);

protected:
    bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override;

private:
    bool m_acceptsEmptyParents = true;

};

#endif