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diff --git a/chart2/source/inc/Scaling.hxx b/chart2/source/inc/Scaling.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_CHART2_SOURCE_INC_SCALING_HXX
+#define INCLUDED_CHART2_SOURCE_INC_SCALING_HXX
+
+#include <com/sun/star/chart2/XScaling.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XServiceName.hpp>
+#include <cppuhelper/implbase.hxx>
+
+namespace chart
+{
+
+class LogarithmicScaling :
+        public ::cppu::WeakImplHelper<
+        css::chart2::XScaling,
+        css::lang::XServiceName,
+        css::lang::XServiceInfo
+        >
+{
+public:
+    /// base is 10.0
+    explicit LogarithmicScaling();
+    LogarithmicScaling( double fBase );
+    virtual ~LogarithmicScaling() override;
+
+    /// declare XServiceInfo methods
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // ____ XScaling ____
+    virtual double SAL_CALL doScaling( double value ) override;
+
+    virtual css::uno::Reference<
+        css::chart2::XScaling > SAL_CALL
+        getInverseScaling() override;
+
+    // ____ XServiceName ____
+    virtual OUString SAL_CALL getServiceName() override;
+
+private:
+    const double m_fBase;
+    const double m_fLogOfBase;
+};
+
+class ExponentialScaling :
+        public ::cppu::WeakImplHelper<
+        css::chart2::XScaling,
+        css::lang::XServiceName,
+        css::lang::XServiceInfo
+        >
+{
+public:
+    /// base is 10.0
+    explicit ExponentialScaling();
+    explicit ExponentialScaling( double fBase );
+    virtual ~ExponentialScaling() override;
+
+    /// declare XServiceInfo methods
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // ____ XScaling ____
+    virtual double SAL_CALL
+    doScaling( double value ) override;
+
+    virtual css::uno::Reference< css::chart2::XScaling > SAL_CALL
+    getInverseScaling() override;
+
+    // ____ XServiceName ____
+    virtual OUString SAL_CALL getServiceName() override;
+
+private:
+    const double m_fBase;
+};
+
+class LinearScaling : public ::cppu::WeakImplHelper<
+        css::chart2::XScaling,
+        css::lang::XServiceName,
+        css::lang::XServiceInfo
+        >
+{
+public:
+    /// y(x) = x
+    explicit LinearScaling();
+    /// y(x) = fSlope * x + fOffset
+    LinearScaling( double fSlope, double fOffset );
+    virtual ~LinearScaling() override;
+
+    /// declare XServiceInfo methods
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // ____ XScaling ____
+    virtual double SAL_CALL doScaling( double value ) override;
+
+    virtual css::uno::Reference< css::chart2::XScaling > SAL_CALL
+        getInverseScaling() override;
+
+    // ____ XServiceName ____
+    virtual OUString SAL_CALL getServiceName() override;
+
+private:
+    const double m_fSlope;
+    const double m_fOffset;
+};
+
+class PowerScaling : public ::cppu::WeakImplHelper<
+        css::chart2::XScaling,
+        css::lang::XServiceName,
+        css::lang::XServiceInfo
+        >
+{
+public:
+    /// exponent 10.0
+    explicit PowerScaling();
+    explicit PowerScaling( double fExponent );
+    virtual ~PowerScaling() override;
+
+    /// declare XServiceInfo methods
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // ____ XScaling ____
+        virtual double SAL_CALL
+    doScaling( double value ) override;
+
+     virtual css::uno::Reference< css::chart2::XScaling > SAL_CALL
+    getInverseScaling() override;
+
+    // ____ XServiceName ____
+    virtual OUString SAL_CALL getServiceName() override;
+
+private:
+    const double m_fExponent;
+};
+
+} //namespace chart
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */