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 /****************************************************************************************
  * Copyright (c) 2008 Daniel Jones <danielcjones@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) version 3 or        *
  * any later version accepted by the membership of KDE e.V. (or its successor approved  *
  * by the membership of KDE e.V.), which shall act as a proxy defined in Section 14 of  *
  * version 3 of the license.                                                            *
  *                                                                                      *
  * 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 AMAROK_DYNAMICPLAYLIST_H
 #define AMAROK_DYNAMICPLAYLIST_H
 
 #include "core/meta/forward_declarations.h"
 #include "core/collections/QueryMaker.h"
 
 #include "amarok_export.h" // we are exporting it for the tests
 
 namespace Collections {
     class Collection;
 }
 class QXmlStreamReader;
 class QXmlStreamWriter;
 
 namespace Dynamic {
 
 /** Provides a basis for dynamic playlists.
     The DynamicPlaylist is used by the DynamicTrackNavigator.
     Currently the only implementation of this abstract class is the BiasedPlaylist.
 */
 class AMAROK_EXPORT DynamicPlaylist : public QObject
 {
     Q_OBJECT
 
     public:
         explicit DynamicPlaylist( QObject *parent = nullptr );
         explicit DynamicPlaylist( QXmlStreamReader *reader, QObject *parent = nullptr );
         ~DynamicPlaylist() override;
 
         virtual void toXml( QXmlStreamWriter *writer ) const = 0;
 
         virtual void requestTracks(int) = 0;
 
         QString title() const;
         void setTitle( const QString &);
 
     Q_SIGNALS:
         void tracksReady( Meta::TrackList );
 
         /** Emitted when this playlist has been modified in some way.
             The DynamicModel will listen to it to detect if it needs to save it.
         */
         void changed( Dynamic::DynamicPlaylist* playlist );
 
 
     public Q_SLOTS:
         /** Start recalculating all tracks after the currently played track */
         // virtual void repopulate();
 
         /** Aborts the current playlist generation operation */
         virtual void requestAbort()
         {}
 
     protected:
         Collections::Collection* m_collection;
         QString m_title;
 };
 
 }
 
 #endif