File indexing completed on 2024-05-19 04:49:18

 /****************************************************************************************
  * Copyright (c) 2010 Maximilian Kossick <maximilian.kossick@googlemail.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, see <http://www.gnu.org/licenses/>.                           *
  ****************************************************************************************/
 
 #ifndef MEMORYQUERYMAKERINTERNAL_H
 #define MEMORYQUERYMAKERINTERNAL_H
 
 #include "core/collections/QueryMaker.h"
 #include "core/meta/forward_declarations.h"
 
 #include <QObject>
 #include <QWeakPointer>
 
 class CustomReturnFunction;
 class CustomReturnValue;
 class MemoryFilter;
 class MemoryMatcher;
 
 namespace Collections {
 
 class MemoryCollection;
 
 /**
   * A helper class for MemoryQueryMaker
   * This class will run in a dedicated thread. It exists so the actual MemoryQueryMaker
   * can be safely deleted in the original thread while the query is still running.
   * All relevant information is passed from MemoryQueryMaker to MemoryQueryMakerInternal
   * using the provided setter methods.
   */
 class MemoryQueryMakerInternal : public QObject
 {
     Q_OBJECT
 public:
     /**
       * Creates a new MemoryQueryMakerInternal that will query collection.
       * This class will run in a dedicated thread. It exists so the actual MemoryQueryMaker
       * can be safely deleted in the original thread while the query is still running.
       * @param collection the MemoryCollection instance that the query should be run on.
       */
     explicit MemoryQueryMakerInternal( const QWeakPointer<Collections::MemoryCollection> &collection );
     ~MemoryQueryMakerInternal() override;
 
 
     void runQuery();
     void handleResult();
     void handleResult( const Meta::TrackList &tracks );
 
     void setMatchers( MemoryMatcher *matchers );
     void setFilters( MemoryFilter *filters );
     void setMaxSize( int maxSize );
     void setReturnAsDataPtrs( bool returnAsDataPtrs );
     void setType( QueryMaker::QueryType );
     void setCustomReturnFunctions( const QList<CustomReturnFunction*> &functions );
     void setCustomReturnValues( const QList<CustomReturnValue*> &values );
     void setAlbumQueryMode( Collections::QueryMaker::AlbumQueryMode mode ) { m_albumQueryMode = mode; }
     void setOrderDescending( bool orderDescending ) { m_orderDescending = orderDescending; }
     void setOrderByNumberField( bool orderByNumberField ) { m_orderByNumberField = orderByNumberField; }
     void setOrderByField( qint64 orderByField ) { m_orderByField = orderByField; }
     void setCollectionId( const QString &collectionId ) { m_collectionId = collectionId; }
     void setLabelQueryMode( Collections::QueryMaker::LabelQueryMode mode ) { m_labelQueryMode = mode; }
 
 Q_SIGNALS:
     void newTracksReady( Meta::TrackList );
     void newArtistsReady( Meta::ArtistList );
     void newAlbumsReady( Meta::AlbumList );
     void newGenresReady( Meta::GenreList );
     void newComposersReady( Meta::ComposerList );
     void newYearsReady( Meta::YearList );
     void newResultReady( QStringList );
     void newLabelsReady( Meta::LabelList );
     void newDataReady( Meta::DataList );
 
 private:
     QWeakPointer<Collections::MemoryCollection> m_collection;
     MemoryMatcher *m_matchers;
     MemoryFilter *m_filters;
     int m_maxSize;
     bool m_returnAsDataPtrs;
     Collections::QueryMaker::QueryType m_type;
     Collections::QueryMaker::AlbumQueryMode m_albumQueryMode;
     Collections::QueryMaker::LabelQueryMode m_labelQueryMode;
     bool m_orderDescending;
     bool m_orderByNumberField;
     qint64 m_orderByField;
     QString m_collectionId;
     QList<CustomReturnFunction*> m_returnFunctions;
     QList<CustomReturnValue*> m_returnValues;
 };
 
 } //namespace Collections
 
 #endif