From e2de64d6f1beb9e492daf5b886e19933c1fa41dd Mon Sep 17 00:00:00 2001 From: toma Date: Wed, 25 Nov 2009 17:56:58 +0000 Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- juk/tracksequencemanager.cpp | 183 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 183 insertions(+) create mode 100644 juk/tracksequencemanager.cpp (limited to 'juk/tracksequencemanager.cpp') diff --git a/juk/tracksequencemanager.cpp b/juk/tracksequencemanager.cpp new file mode 100644 index 00000000..7e05f825 --- /dev/null +++ b/juk/tracksequencemanager.cpp @@ -0,0 +1,183 @@ +/*************************************************************************** + begin : Thu Aug 19 2004 + copyright : (C) 2002 - 2004 by Michael Pyne + email : michael.pyne@kde.org +***************************************************************************/ + +/*************************************************************************** + * * + * 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. * + * * + ***************************************************************************/ + +#include +#include +#include +#include + +#include "actioncollection.h" +#include "tracksequencemanager.h" +#include "playlist.h" +#include "playlistitem.h" +#include "tracksequenceiterator.h" +#include "tag.h" +#include "filehandle.h" +#include "collectionlist.h" + +///////////////////////////////////////////////////////////////////////////// +// public functions +///////////////////////////////////////////////////////////////////////////// + +TrackSequenceManager::~TrackSequenceManager() +{ + // m_playlist and m_popupMenu don't belong to us, don't try to delete them + if(m_iterator == m_defaultIterator) + m_iterator = 0; + + delete m_iterator; + delete m_defaultIterator; +} + +bool TrackSequenceManager::installIterator(TrackSequenceIterator *iterator) +{ + PlaylistItem *oldItem = m_iterator ? m_iterator->current() : 0; + + if(m_iterator != m_defaultIterator) + delete m_iterator; + + m_iterator = m_defaultIterator; + if(iterator) + m_iterator = iterator; + + m_iterator->setCurrent(oldItem); + + return true; +} + +PlaylistItem *TrackSequenceManager::currentItem() const +{ + return m_iterator->current(); +} + +TrackSequenceIterator *TrackSequenceManager::takeIterator() +{ + TrackSequenceIterator *temp = m_iterator; + + m_iterator = 0; + return temp; +} + +TrackSequenceManager *TrackSequenceManager::instance() +{ + static TrackSequenceManager manager; + + if(!manager.m_initialized) + manager.initialize(); + + return &manager; +} + +PlaylistItem *TrackSequenceManager::nextItem() +{ + if(m_playNextItem) { + + // Force the iterator to reset state (such as random item lists) + + m_iterator->reset(); + m_iterator->setCurrent(m_playNextItem); + m_playNextItem = 0; + } + else if(m_iterator->current()) + m_iterator->advance(); + else if(currentPlaylist()) + m_iterator->prepareToPlay(currentPlaylist()); + else + m_iterator->prepareToPlay(CollectionList::instance()); + + return m_iterator->current(); +} + +PlaylistItem *TrackSequenceManager::previousItem() +{ + m_iterator->backup(); + return m_iterator->current(); +} + +///////////////////////////////////////////////////////////////////////////// +// public slots +///////////////////////////////////////////////////////////////////////////// + +void TrackSequenceManager::setNextItem(PlaylistItem *item) +{ + m_playNextItem = item; +} + +void TrackSequenceManager::setCurrentPlaylist(Playlist *list) +{ + if(m_playlist) + m_playlist->disconnect(this); + m_playlist = list; + + connect(m_playlist, SIGNAL(signalAboutToRemove(PlaylistItem *)), + this, SLOT(slotItemAboutToDie(PlaylistItem *))); +} + +void TrackSequenceManager::setCurrent(PlaylistItem *item) +{ + if(item != m_iterator->current()) { + m_iterator->setCurrent(item); + if(item) + setCurrentPlaylist(item->playlist()); + else + m_iterator->reset(); + } +} + +///////////////////////////////////////////////////////////////////////////// +// private functions +///////////////////////////////////////////////////////////////////////////// + +void TrackSequenceManager::initialize() +{ + CollectionList *collection = CollectionList::instance(); + + if(!collection) + return; + + // Make sure we don't use m_playNextItem if it's invalid. + connect(collection, SIGNAL(signalAboutToRemove(PlaylistItem *)), + this, SLOT(slotItemAboutToDie(PlaylistItem *))); + + m_initialized = true; +} + +TrackSequenceManager::TrackSequenceManager() : + QObject(), + m_playlist(0), + m_playNextItem(0), + m_popupMenu(0), + m_iterator(0), + m_initialized(false) +{ + m_defaultIterator = new DefaultSequenceIterator(); + m_iterator = m_defaultIterator; +} + +///////////////////////////////////////////////////////////////////////////// +// protected slots +///////////////////////////////////////////////////////////////////////////// + +void TrackSequenceManager::slotItemAboutToDie(PlaylistItem *item) +{ + if(item == m_playNextItem) + m_playNextItem = 0; + + m_iterator->itemAboutToDie(item); +} + +#include "tracksequencemanager.moc" + +// vim: set et sw=4 tw=0: -- cgit v1.2.1