File indexing completed on 2024-05-05 04:48:43

 /****************************************************************************************
  * Copyright (c) 2007 Ian Monroe <ian@monroe.nu>                                        *
  * Copyright (c) 2008 Soren Harward <stharward@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::Item"
 
 #include "PlaylistItem.h"
 
 #include "core/capabilities/SourceInfoCapability.h"
 #include "core/meta/Meta.h"
 
 #include <QRandomGenerator>
 
 #include <QSet>
 
 Playlist::Item::Item()
     : m_state ( Invalid )
     , m_id ( 0 )
 {
 }
 
 Playlist::Item::Item( const Meta::TrackPtr &track )
         : m_track( track ), m_state( NewlyAdded )
 {
     m_id = ( static_cast<quint64>( QRandomGenerator::global()->generate() ) << 32 ) | static_cast<quint64>( QRandomGenerator::global()->generate() );
 }
 
 Playlist::Item::~Item()
 {
 }
 
 const Meta::TrackPtr &
 Playlist::Item::track() const
 {
     return m_track;
 }
 
 // Does the same thing as:
 //     foreach( quint64 val, set )
 //         target.removeAll( val )
 // but with O(n * log n) performance instead of O(n^2) if 'target' and 'set' are similar-sized.
 void
 Playlist::Item::listRemove( QList<quint64> &target, QSet<quint64> &removeSet )
 {
     QMutableListIterator<quint64> iter( target );
     while ( iter.hasNext() )
         if ( removeSet.contains( iter.next() ) )
             iter.remove();
 }