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diff --git a/src/projects/k3baudiodatasourceeditwidget.h b/src/projects/k3baudiodatasourceeditwidget.h
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+/* 
+ *
+ * $Id: sourceheader 380067 2005-01-19 13:03:46Z trueg $
+ * 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_AUDIODATASOURCE_EDITWIDGET_H_
+#define _K3B_AUDIODATASOURCE_EDITWIDGET_H_
+
+#include <qwidget.h>
+#include <k3bmsf.h>
+
+class K3bAudioDataSource;
+class K3bAudioEditorWidget;
+class K3bMsfEdit;
+
+/**
+ * Widget to modify the start and end offset of a source or simply change
+ * the length of a silence source.
+ */
+class K3bAudioDataSourceEditWidget : public QWidget
+{
+  Q_OBJECT
+
+ public:
+  K3bAudioDataSourceEditWidget( QWidget* parent = 0, const char* name = 0 );
+  ~K3bAudioDataSourceEditWidget();
+
+  K3b::Msf startOffset() const;
+
+  /**
+   * Highest value (mening to use all the data up to the end of the source)
+   * is source::originalLength(). 
+   *
+   * Be aware that this differs from K3bAudioDataSource::endOffset() which 
+   * points after the last used sector for internal reasons.
+   */
+  K3b::Msf endOffset() const;
+
+ public slots:
+  void loadSource( K3bAudioDataSource* );
+  void saveSource();
+
+  void setStartOffset( const K3b::Msf& );
+  void setEndOffset( const K3b::Msf& );
+
+ private slots:
+  void slotRangeModified( int, const K3b::Msf&, const K3b::Msf& );
+  void slotStartOffsetEdited( const K3b::Msf& );
+  void slotEndOffsetEdited( const K3b::Msf& );
+
+ private:
+  K3bAudioDataSource* m_source;
+  int m_rangeId;
+
+  K3bAudioEditorWidget* m_editor;
+  K3bMsfEdit* m_editStartOffset;
+  K3bMsfEdit* m_editEndOffset;
+};
+
+#endif