1 files changed, 57 insertions, 0 deletions
diff --git a/libk3b/tools/k3bthroughputestimator.h b/libk3b/tools/k3bthroughputestimator.h
new file mode 100644
index 0000000..aed71e0
--- /dev/null
+++ b/libk3b/tools/k3bthroughputestimator.h
@@ -0,0 +1,57 @@
+/* 
+ *
+ * $Id: k3bthroughputestimator.h 619556 2007-01-03 17:38:12Z trueg $
+ * Copyright (C) 2003 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_THROUGHPUT_ESTIMATOR_H_
+#define _K3B_THROUGHPUT_ESTIMATOR_H_
+
+#include <qobject.h>
+
+
+/**
+ * Little helper class that allows an estimation of the current writing
+ * speed. Just init with @p reset() then always call @p dataWritten with
+ * the already written data in KB. The class will emit throughput signals
+ * whenever the throughput changes.
+ */
+class K3bThroughputEstimator : public QObject
+{
+  Q_OBJECT
+
+ public:
+  K3bThroughputEstimator( QObject* parent = 0, const char* name = 0 );
+  ~K3bThroughputEstimator();
+
+  int average() const;
+
+ signals:
+  /**
+   * kb/s if differs from previous
+   */
+  void throughput( int );
+
+ public slots:
+  void reset();
+
+  /**
+   * @param data written kb
+   */
+  void dataWritten( unsigned long data );
+
+ private:
+  class Private;
+  Private* d;
+};
+
+#endif