File indexing completed on 2024-05-19 04:49:50

 /****************************************************************************************
  * Copyright (c) 2008 Nikolaj Hald Nielsen <nhn@kde.org>                                *
  * Copyright (c) 2008 Soren Harward <stharward@gmail.com>                               *
  * Copyright (c) 2009 Téo Mrnjavac <teo@kde.org>                                        *
  * Copyright (c) 2010 Nanno Langstraat <langstr@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/>.                           *
  ****************************************************************************************/
 
 #define DEBUG_PREFIX "Playlist::RandomAlbumNavigator"
 
 // WORKAROUND for QTBUG-25960. Required for Qt versions < 4.8.5 in combination with libc++.
 #define QT_NO_STL 1
     #include <qiterator.h>
 #undef QT_NO_STL
 
 #include "RandomAlbumNavigator.h"
 
 #include "core/support/Debug.h"
 #include "core/meta/Meta.h"
 
 #include <algorithm> // For std::random_shuffle
 
 
 Playlist::RandomAlbumNavigator::RandomAlbumNavigator()
 {
     loadFromSourceModel();
 }
 
 
 void
 Playlist::RandomAlbumNavigator::planOne()
 {
     DEBUG_BLOCK
 
     // Try to find next item in same album
     if ( m_plannedItems.isEmpty() )
     {
         ItemList itemsInAlbum = m_itemsPerAlbum.value( currentAlbum() );    // May be default-constructed empty list.
 
         int currentRow = itemsInAlbum.indexOf( currentItem() );    // -1 if currentItem() == 0.
         if ( currentRow != -1 )
         {
             int nextRow = currentRow + 1;
             if ( nextRow < itemsInAlbum.size() )
                 m_plannedItems.append( itemsInAlbum.at( nextRow ) );
         }
     }
 
     // Try to find first item in next album
     if ( m_plannedItems.isEmpty() )
     {
         if ( m_plannedAlbums.isEmpty() )    // Handle end of planned album list
             notifyAlbumsInserted( m_itemsPerAlbum.uniqueKeys() );
 
         if ( !m_plannedAlbums.isEmpty() )
         {
             AlbumId newAlbum = m_plannedAlbums.takeFirst();
             quint64 newCurrentItem = m_itemsPerAlbum.value( newAlbum ).first();
             m_plannedItems.append( newCurrentItem );
         }
     }
 }
 
 void
 Playlist::RandomAlbumNavigator::notifyAlbumsInserted( const QList<AlbumId> &insertedAlbums )
 {
     DEBUG_BLOCK
 
     m_plannedAlbums.append( insertedAlbums );
     std::random_shuffle( m_plannedAlbums.begin(), m_plannedAlbums.end() );
     if ( !m_plannedAlbums.isEmpty() )
         if ( m_plannedAlbums.first() == currentAlbum() )
             m_plannedAlbums.append( m_plannedAlbums.takeFirst() );    // Try to avoid playing same album twice.
 }