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diff --git a/chart2/source/tools/UncachedDataSequence.cxx b/chart2/source/tools/UncachedDataSequence.cxx
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+++ b/chart2/source/tools/UncachedDataSequence.cxx
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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 .
+ */
+
+#include <UncachedDataSequence.hxx>
+#include <CommonFunctors.hxx>
+#include <ModifyListenerHelper.hxx>
+#include <InternalDataProvider.hxx>
+
+#include <cppuhelper/supportsservice.hxx>
+#include <algorithm>
+#include <strings.hrc>
+#include <ResId.hxx>
+
+using namespace ::com::sun::star;
+
+using ::com::sun::star::uno::Sequence;
+using ::com::sun::star::uno::Reference;
+using ::com::sun::star::uno::Any;
+using ::osl::MutexGuard;
+
+// necessary for MS compiler
+using ::comphelper::OPropertyContainer;
+using ::chart::impl::UncachedDataSequence_Base;
+
+namespace
+{
+constexpr OUStringLiteral lcl_aServiceName = u"com.sun.star.comp.chart.UncachedDataSequence";
+
+enum
+{
+    PROP_NUMBERFORMAT_KEY,
+    PROP_PROPOSED_ROLE,
+    PROP_XML_RANGE
+};
+}  // anonymous namespace
+
+namespace chart
+{
+
+UncachedDataSequence::UncachedDataSequence(
+    const rtl::Reference< InternalDataProvider > & xIntDataProv,
+    const OUString & rRangeRepresentation )
+        : OPropertyContainer( GetBroadcastHelper()),
+          UncachedDataSequence_Base( GetMutex()),
+          m_nNumberFormatKey(0),
+          m_xDataProvider( xIntDataProv ),
+          m_aSourceRepresentation( rRangeRepresentation ),
+          m_xModifyEventForwarder( new ModifyEventForwarder() )
+{
+    registerProperties();
+}
+
+UncachedDataSequence::UncachedDataSequence(
+    const rtl::Reference< InternalDataProvider > & xIntDataProv,
+    const OUString & rRangeRepresentation,
+    const OUString & rRole )
+        : OPropertyContainer( GetBroadcastHelper()),
+          UncachedDataSequence_Base( GetMutex()),
+          m_nNumberFormatKey(0),
+          m_xDataProvider( xIntDataProv ),
+          m_aSourceRepresentation( rRangeRepresentation ),
+          m_xModifyEventForwarder( new ModifyEventForwarder() )
+{
+    registerProperties();
+    setFastPropertyValue_NoBroadcast( PROP_PROPOSED_ROLE, uno::Any( rRole ));
+}
+
+UncachedDataSequence::UncachedDataSequence( const UncachedDataSequence & rSource )
+        : OPropertyContainer( GetBroadcastHelper()),
+          UncachedDataSequence_Base( GetMutex()),
+          m_nNumberFormatKey( rSource.m_nNumberFormatKey ),
+          m_sRole( rSource.m_sRole ),
+          m_xDataProvider( rSource.m_xDataProvider ),
+          m_aSourceRepresentation( rSource.m_aSourceRepresentation ),
+          m_xModifyEventForwarder( new ModifyEventForwarder() )
+{
+    registerProperties();
+}
+
+UncachedDataSequence::~UncachedDataSequence()
+{}
+
+void UncachedDataSequence::registerProperties()
+{
+    registerProperty( "NumberFormatKey",
+                      PROP_NUMBERFORMAT_KEY,
+                      0,   // PropertyAttributes
+                      & m_nNumberFormatKey,
+                      cppu::UnoType<decltype(m_nNumberFormatKey)>::get() );
+
+    registerProperty( "Role",
+                      PROP_PROPOSED_ROLE,
+                      0,   // PropertyAttributes
+                      & m_sRole,
+                      cppu::UnoType<decltype(m_sRole)>::get() );
+
+    registerProperty( "CachedXMLRange",
+                      PROP_XML_RANGE,
+                      0,   // PropertyAttributes
+                      & m_aXMLRange,
+                      cppu::UnoType<decltype(m_aXMLRange)>::get() );
+}
+
+IMPLEMENT_FORWARD_XINTERFACE2( UncachedDataSequence, UncachedDataSequence_Base, OPropertyContainer )
+IMPLEMENT_FORWARD_XTYPEPROVIDER2( UncachedDataSequence, UncachedDataSequence_Base, OPropertyContainer )
+
+// ____ XPropertySet ____
+Reference< beans::XPropertySetInfo > SAL_CALL UncachedDataSequence::getPropertySetInfo()
+{
+    return createPropertySetInfo( getInfoHelper() );
+}
+
+// ____ ::comphelper::OPropertySetHelper ____
+::cppu::IPropertyArrayHelper& UncachedDataSequence::getInfoHelper()
+{
+    return *getArrayHelper();
+}
+
+// ____ ::comphelper::OPropertyArrayHelper ____
+::cppu::IPropertyArrayHelper* UncachedDataSequence::createArrayHelper() const
+{
+    Sequence< beans::Property > aProps;
+    // describes all properties which have been registered in the ctor
+    describeProperties( aProps );
+
+    return new ::cppu::OPropertyArrayHelper( aProps );
+}
+
+OUString SAL_CALL UncachedDataSequence::getImplementationName()
+{
+    return lcl_aServiceName;
+}
+
+sal_Bool SAL_CALL UncachedDataSequence::supportsService( const OUString& rServiceName )
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+css::uno::Sequence< OUString > SAL_CALL UncachedDataSequence::getSupportedServiceNames()
+{
+    return {
+        lcl_aServiceName,
+        "com.sun.star.chart2.data.DataSequence",
+        "com.sun.star.chart2.data.NumericalDataSequence",
+        "com.sun.star.chart2.data.TextualDataSequence"
+    };
+}
+
+// ________ XNumericalDataSequence ________
+Sequence< double > SAL_CALL UncachedDataSequence::getNumericalData()
+{
+    Sequence< double > aResult;
+    MutexGuard aGuard( GetMutex() );
+    if( m_xDataProvider.is())
+    {
+        const Sequence< uno::Any > aValues( m_xDataProvider->getDataByRangeRepresentation( m_aSourceRepresentation ));
+        aResult.realloc( aValues.getLength());
+        std::transform( aValues.begin(), aValues.end(),
+                          aResult.getArray(), CommonFunctors::AnyToDouble());
+    }
+    return aResult;
+}
+
+// ________ XTextualDataSequence ________
+Sequence< OUString > SAL_CALL UncachedDataSequence::getTextualData()
+{
+    Sequence< OUString > aResult;
+    MutexGuard aGuard( GetMutex() );
+    if( m_xDataProvider.is())
+    {
+        const Sequence< uno::Any > aValues( m_xDataProvider->getDataByRangeRepresentation( m_aSourceRepresentation ));
+        aResult.realloc( aValues.getLength());
+        std::transform( aValues.begin(), aValues.end(),
+                          aResult.getArray(), CommonFunctors::AnyToString());
+    }
+    return aResult;
+}
+
+// ________ XDataSequence  ________
+Sequence< Any > SAL_CALL UncachedDataSequence::getData()
+{
+    MutexGuard aGuard( GetMutex() );
+    if( m_xDataProvider.is())
+        return m_xDataProvider->getDataByRangeRepresentation( m_aSourceRepresentation );
+    return Sequence< Any >();
+}
+
+OUString SAL_CALL UncachedDataSequence::getSourceRangeRepresentation()
+{
+    return getName();
+}
+
+Sequence< OUString > SAL_CALL UncachedDataSequence::generateLabel( chart2::data::LabelOrigin )
+{
+    // auto-generated label
+    sal_Int32 nSeries = m_aSourceRepresentation.toInt32() + 1;
+    OUString aResString(::chart::SchResId(STR_DATA_UNNAMED_SERIES_WITH_INDEX));
+    static const OUStringLiteral aReplacementStr(u"%NUMBER");
+    sal_Int32 nIndex = aResString.indexOf(aReplacementStr);
+    OUString aName;
+    if( nIndex != -1 )
+        aName = aResString.replaceAt(nIndex, aReplacementStr.getLength(), OUString::number(nSeries));
+    return Sequence< OUString >( &aName, 1 );
+}
+
+::sal_Int32 SAL_CALL UncachedDataSequence::getNumberFormatKeyByIndex( ::sal_Int32 )
+{
+    return m_nNumberFormatKey;
+}
+
+// ____ XIndexReplace ____
+void SAL_CALL UncachedDataSequence::replaceByIndex( ::sal_Int32 Index, const uno::Any& Element )
+{
+    MutexGuard aGuard( GetMutex() );
+    Sequence< Any > aData( getData());
+    if( Index < aData.getLength() &&
+        m_xDataProvider.is() )
+    {
+        aData.getArray()[Index] = Element;
+        m_xDataProvider->setDataByRangeRepresentation( m_aSourceRepresentation, aData );
+        fireModifyEvent();
+    }
+}
+
+// ____ XIndexAccess (base of XIndexReplace) ____
+::sal_Int32 SAL_CALL UncachedDataSequence::getCount()
+{
+    OSL_FAIL( "Implement!" );
+    return 0;
+}
+
+uno::Any SAL_CALL UncachedDataSequence::getByIndex( ::sal_Int32 )
+{
+    OSL_FAIL( "Implement!" );
+    return uno::Any();
+}
+
+// ____ XElementAccess (base of XIndexAccess) ____
+uno::Type SAL_CALL UncachedDataSequence::getElementType()
+{
+    return cppu::UnoType<uno::Any>::get();
+}
+
+sal_Bool SAL_CALL UncachedDataSequence::hasElements()
+{
+    if( ! m_xDataProvider.is())
+        return false;
+    return m_xDataProvider->hasDataByRangeRepresentation( m_aSourceRepresentation );
+}
+
+// ____ XNamed ____
+OUString SAL_CALL UncachedDataSequence::getName()
+{
+    return m_aSourceRepresentation;
+}
+
+void SAL_CALL UncachedDataSequence::setName( const OUString& aName )
+{
+    m_aSourceRepresentation = aName;
+    fireModifyEvent();
+}
+
+Reference< util::XCloneable > SAL_CALL UncachedDataSequence::createClone()
+{
+    return new UncachedDataSequence( *this );
+}
+
+// ____ XModifiable ____
+sal_Bool SAL_CALL UncachedDataSequence::isModified()
+{
+    return false;
+}
+
+void SAL_CALL UncachedDataSequence::setModified( sal_Bool bModified )
+{
+    if( bModified )
+        fireModifyEvent();
+}
+
+// ____ XModifyBroadcaster (base of XModifiable) ____
+void SAL_CALL UncachedDataSequence::addModifyListener( const Reference< util::XModifyListener >& aListener )
+{
+    m_xModifyEventForwarder->addModifyListener( aListener );
+}
+
+void SAL_CALL UncachedDataSequence::removeModifyListener( const Reference< util::XModifyListener >& aListener )
+{
+    m_xModifyEventForwarder->removeModifyListener( aListener );
+}
+
+void UncachedDataSequence::fireModifyEvent()
+{
+    // @todo: currently never called, as data changes are not yet reported by
+    // the data provider
+    m_xModifyEventForwarder->modified( lang::EventObject( static_cast< uno::XWeak* >( this )));
+}
+
+}  // namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */