1 files changed, 194 insertions, 0 deletions
diff --git a/juk/dynamicplaylist.cpp b/juk/dynamicplaylist.cpp
new file mode 100644
index 00000000..69d0a4ae
--- /dev/null
+++ b/juk/dynamicplaylist.cpp
@@ -0,0 +1,194 @@
+/***************************************************************************
+    begin                : Mon May 5 2003
+    copyright            : (C) 2003 - 2004 by Scott Wheeler
+    email                : wheeler@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 <kdebug.h>
+
+#include "dynamicplaylist.h"
+#include "collectionlist.h"
+#include "playlistcollection.h"
+#include "tracksequencemanager.h"
+
+class PlaylistDirtyObserver : public PlaylistObserver
+{
+public:
+    PlaylistDirtyObserver(DynamicPlaylist *parent, Playlist *playlist) :
+	PlaylistObserver(playlist),
+        m_parent(parent) 
+    {
+
+    }
+    virtual void updateData() { m_parent->slotSetDirty(); }
+    virtual void updateCurrent() {}
+
+private:
+    DynamicPlaylist *m_parent;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// public methods
+////////////////////////////////////////////////////////////////////////////////
+
+DynamicPlaylist::DynamicPlaylist(const PlaylistList &playlists,
+                                 PlaylistCollection *collection,
+                                 const QString &name,
+                                 const QString &iconName,
+                                 bool setupPlaylist,
+                                 bool synchronizePlaying) :
+    Playlist(collection, true),
+    m_playlists(playlists),
+    m_dirty(true),
+    m_synchronizePlaying(synchronizePlaying)
+{
+    if(setupPlaylist)
+        collection->setupPlaylist(this, iconName);
+    setName(name);
+
+    setSorting(columns() + 1);
+
+    for(PlaylistList::ConstIterator it = playlists.begin(); it != playlists.end(); ++it)
+        m_observers.append(new PlaylistDirtyObserver(this, *it));
+
+    connect(CollectionList::instance(), SIGNAL(signalCollectionChanged()), this, SLOT(slotSetDirty()));
+}
+
+DynamicPlaylist::~DynamicPlaylist()
+{
+    lower();
+
+    for(QValueList<PlaylistObserver *>::ConstIterator it = m_observers.begin();
+        it != m_observers.end();
+        ++it)
+    {
+        delete *it;
+    }
+}
+
+void DynamicPlaylist::setPlaylists(const PlaylistList &playlists)
+{
+    m_playlists = playlists;
+    updateItems();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// public slots
+////////////////////////////////////////////////////////////////////////////////
+
+void DynamicPlaylist::slotReload()
+{
+    for(PlaylistList::Iterator it = m_playlists.begin(); it != m_playlists.end(); ++it)
+        (*it)->slotReload();
+
+    checkUpdateItems();
+}
+
+void DynamicPlaylist::lower(QWidget *top)
+{
+    if(top == this)
+	return;
+
+    if(playing()) {
+        PlaylistList l;
+        l.append(this);
+        for(PlaylistList::Iterator it = m_playlists.begin();
+            it != m_playlists.end(); ++it)
+        {
+            (*it)->synchronizePlayingItems(l, true);
+        }
+    }
+
+    PlaylistItemList list = PlaylistItem::playingItems();
+    for(PlaylistItemList::Iterator it = list.begin(); it != list.end(); ++it) {
+        if((*it)->playlist() == this) {
+            list.remove(it);
+            break;
+        }
+    }
+
+    if(!list.isEmpty())
+        TrackSequenceManager::instance()->setCurrentPlaylist(list.front()->playlist());
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// protected methods
+////////////////////////////////////////////////////////////////////////////////
+
+PlaylistItemList DynamicPlaylist::items()
+{
+    checkUpdateItems();
+    return Playlist::items();
+}
+
+void DynamicPlaylist::showEvent(QShowEvent *e)
+{
+    checkUpdateItems();
+    Playlist::showEvent(e);
+}
+
+void DynamicPlaylist::paintEvent(QPaintEvent *e)
+{
+    checkUpdateItems();
+    Playlist::paintEvent(e);
+}
+
+void DynamicPlaylist::updateItems()
+{
+    PlaylistItemList siblings;
+
+    for(PlaylistList::ConstIterator it = m_playlists.begin(); it != m_playlists.end(); ++it)
+        siblings += (*it)->items();
+
+
+    PlaylistItemList newSiblings = siblings;
+    if(m_siblings != newSiblings) {
+        m_siblings = newSiblings;
+        QTimer::singleShot(0, this, SLOT(slotUpdateItems()));
+    }
+}
+
+bool DynamicPlaylist::synchronizePlaying() const
+{
+    return m_synchronizePlaying;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// private methods
+////////////////////////////////////////////////////////////////////////////////
+
+void DynamicPlaylist::checkUpdateItems()
+{
+    if(!m_dirty)
+        return;
+
+    updateItems();
+
+    m_dirty = false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// private slots
+////////////////////////////////////////////////////////////////////////////////
+
+void DynamicPlaylist::slotUpdateItems()
+{
+    // This should be optimized to check to see which items are already in the
+    // list and just adding those and removing the ones that aren't.
+
+    clear();
+    createItems(m_siblings);
+    if(m_synchronizePlaying)
+        synchronizePlayingItems(m_playlists, true);
+}
+
+#include "dynamicplaylist.moc"