diff --git a/src/piechart/qhpiemodelmapper.cpp b/src/piechart/qhpiemodelmapper.cpp
index 2b45edf..0d9c64f 100644
--- a/src/piechart/qhpiemodelmapper.cpp
+++ b/src/piechart/qhpiemodelmapper.cpp
@@ -1,3 +1,23 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
 #include "qhpiemodelmapper.h"
 
 QTCOMMERCIALCHART_BEGIN_NAMESPACE
diff --git a/src/piechart/qhpiemodelmapper.h b/src/piechart/qhpiemodelmapper.h
index 195f713..9795c05 100644
--- a/src/piechart/qhpiemodelmapper.h
+++ b/src/piechart/qhpiemodelmapper.h
@@ -1,3 +1,23 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
 #ifndef QHPIEMODELMAPPER_H
 #define QHPIEMODELMAPPER_H
 
diff --git a/src/piechart/qpiemodelmapper.cpp b/src/piechart/qpiemodelmapper.cpp
index 767dbd0..5843da0 100644
--- a/src/piechart/qpiemodelmapper.cpp
+++ b/src/piechart/qpiemodelmapper.cpp
@@ -1,3 +1,23 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
 #include "qpiemodelmapper_p.h"
 #include "qpiemodelmapper.h"
 #include "qpieseries.h"
diff --git a/src/piechart/qpiemodelmapper_p.h b/src/piechart/qpiemodelmapper_p.h
index fb4b22d..8f2fdc2 100644
--- a/src/piechart/qpiemodelmapper_p.h
+++ b/src/piechart/qpiemodelmapper_p.h
@@ -1,3 +1,32 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the QtCommercial Chart API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
 #ifndef QPIEMODELMAPPER_P_H
 #define QPIEMODELMAPPER_P_H
 
diff --git a/src/piechart/qvpiemodelmapper.cpp b/src/piechart/qvpiemodelmapper.cpp
index e075b0b..22c31ef 100644
--- a/src/piechart/qvpiemodelmapper.cpp
+++ b/src/piechart/qvpiemodelmapper.cpp
@@ -1,3 +1,23 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
 #include "qpiemodelmapper_p.h"
 #include "qvpiemodelmapper.h"
 
diff --git a/src/piechart/qvpiemodelmapper.h b/src/piechart/qvpiemodelmapper.h
index 0ff1911..9ec0a7b 100644
--- a/src/piechart/qvpiemodelmapper.h
+++ b/src/piechart/qvpiemodelmapper.h
@@ -1,3 +1,23 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
 #ifndef QVPIEMODELMAPPER_H
 #define QVPIEMODELMAPPER_H
 
diff --git a/src/splinechart/qsplineseries.cpp b/src/splinechart/qsplineseries.cpp
index 1ef5ce7..6c5850f 100644
--- a/src/splinechart/qsplineseries.cpp
+++ b/src/splinechart/qsplineseries.cpp
@@ -82,10 +82,7 @@ QAbstractSeries::SeriesType QSplineSeries::type() const
 
 QSplineSeriesPrivate::QSplineSeriesPrivate(QSplineSeries* q):QLineSeriesPrivate(q)
 {
-//    QObject::connect(this,SIGNAL(pointAdded(int)), this, SLOT(updateControlPoints()));
-//    QObject::connect(this,SIGNAL(pointRemoved(int)), this, SLOT(updateControlPoints()));
-//    QObject::connect(this,SIGNAL(pointReplaced(int)), this, SLOT(updateControlPoints()));
-};
+}
 
 /*!
   Calculates control points which are needed by QPainterPath.cubicTo function to draw the cubic Bezier cureve between two points.