File indexing completed on 2024-05-05 04:47:28

 /****************************************************************************************
  * Copyright (c) 2007 Nikolaj Hald Nielsen <nhn@kde.org>                                *
  * Copyright (c) 2008 Seb Ruiz <ruiz@kde.org>                                           *
  * Copyright (c) 2013 Ralf Engels <ralf-engels@gmx.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 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, see <http://www.gnu.org/licenses/>.                           *
  ****************************************************************************************/
 
 #ifndef COLLECTIONSORTFILTERPROXYMODEL_H
 #define COLLECTIONSORTFILTERPROXYMODEL_H
 
 #include "core/meta/forward_declarations.h"
 
 #include <QSortFilterProxyModel>
 
 class CollectionTreeItem;
 class QCollator;
 
 /**
     This is a custom QSortFilterProxyModel that gives special sort orders for
     our meta objects.
     e.g. it sorts tracks by disc number and track number.
 
     @author Nikolaj Hald Nielsen <nhn@kde.org>
 */
 class CollectionSortFilterProxyModel : public QSortFilterProxyModel
 {
     public:
         explicit CollectionSortFilterProxyModel( QObject *parent = nullptr );
 
         ~CollectionSortFilterProxyModel() override;
 
         bool hasChildren(const QModelIndex &parent) const override;
 
     protected:
         bool lessThan( const QModelIndex &left, const QModelIndex &right ) const override;
         bool filterAcceptsRow( int source_row, const QModelIndex & source_parent ) const override;
 
     private:
         QCollator *m_col;
 
         CollectionTreeItem* treeItem( const QModelIndex &index ) const;
         bool lessThanTrack( const QModelIndex &left, const QModelIndex &right ) const;
         bool lessThanAlbum( const QModelIndex &left, const QModelIndex &right ) const;
         bool lessThanItem( const QModelIndex &left, const QModelIndex &right ) const;
 };
 
 #endif