1 files changed, 61 insertions, 0 deletions
diff --git a/libk3b/projects/audiocd/k3baudiodatasourceiterator.h b/libk3b/projects/audiocd/k3baudiodatasourceiterator.h
new file mode 100644
index 0000000..7a0ce59
--- /dev/null
+++ b/libk3b/projects/audiocd/k3baudiodatasourceiterator.h
@@ -0,0 +1,61 @@
+/* 
+ *
+ * $Id: sourceheader,v 1.3 2005/01/19 13:03:46 trueg Exp $
+ * Copyright (C) 2005 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.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.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+#ifndef _K3B_AUDIO_DATA_SOURCE_ITERATOR_H_
+#define _K3B_AUDIO_DATA_SOURCE_ITERATOR_H_
+#include "k3b_export.h"
+class K3bAudioDataSource;
+class K3bAudioTrack;
+class K3bAudioDoc;
+
+
+/**
+ * This Iterator iterates over the sources in an audio project
+ *
+ * Be aware that this iterator does not properly update when the doc
+ * changes. A manual update can be issued with first(). This is becasue
+ * an update would either involve slots (this being a QObject) which is 
+ * too much overhead or the AudioDoc would need to have knowledge of all
+ * the iterators which is also overhead that would be overkill.
+ */
+class LIBK3B_EXPORT K3bAudioDataSourceIterator
+{
+ public:
+  /**
+   * This will place the iterator on the first source just like first() does.
+   */
+  explicit K3bAudioDataSourceIterator( K3bAudioDoc* );
+
+  K3bAudioDataSource* current() const;
+
+  bool hasNext() const;
+
+  /**
+   * \return the next source or 0 if at end.
+   */
+  K3bAudioDataSource* next();
+
+  /**
+   * Reset the iterator
+   */
+  K3bAudioDataSource* first();
+
+ private:
+  K3bAudioDoc* m_doc;
+  K3bAudioTrack* m_currentTrack;
+  K3bAudioDataSource* m_currentSource;
+};
+
+#endif