Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 884 insertions, 0 deletions

diff --git a/chart2/source/tools/DataSeriesHelper.cxx b/chart2/source/tools/DataSeriesHelper.cxx
new file mode 100644
index 000000000..a4b4dec45
--- /dev/null
+++ b/chart2/source/tools/DataSeriesHelper.cxx
@@ -0,0 +1,884 @@
+/* -*- 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 <DataSeriesHelper.hxx>
+#include <DataSeries.hxx>
+#include <DataSource.hxx>
+#include <ChartType.hxx>
+#include <unonames.hxx>
+#include <Diagram.hxx>
+#include <BaseCoordinateSystem.hxx>
+#include <Axis.hxx>
+
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/chart2/DataPointLabel.hpp>
+#include <com/sun/star/chart2/data/XTextualDataSequence.hpp>
+#include <com/sun/star/chart2/StackingDirection.hpp>
+#include <com/sun/star/chart2/data/LabelOrigin.hpp>
+#include <com/sun/star/chart2/AxisType.hpp>
+#include <com/sun/star/chart2/SymbolStyle.hpp>
+#include <com/sun/star/chart2/Symbol.hpp>
+#include <com/sun/star/chart2/XDiagram.hpp>
+#include <com/sun/star/drawing/LineStyle.hpp>
+
+#include <comphelper/sequence.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <tools/diagnose_ex.h>
+
+#include <algorithm>
+#include <iterator>
+#include <vector>
+#include <set>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::chart2;
+
+using ::com::sun::star::uno::Reference;
+using ::com::sun::star::uno::Sequence;
+
+namespace
+{
+
+class lcl_MatchesRole
+{
+public:
+    explicit lcl_MatchesRole( const OUString & aRole, bool bMatchPrefix ) :
+            m_aRole( aRole ),
+            m_bMatchPrefix( bMatchPrefix )
+    {}
+
+    bool operator () ( const Reference< chart2::data::XLabeledDataSequence > & xSeq ) const
+    {
+        if(!xSeq.is())
+            return false;
+        Reference< beans::XPropertySet > xProp( xSeq->getValues(), uno::UNO_QUERY );
+        OUString aRole;
+
+        if( m_bMatchPrefix )
+            return ( xProp.is() &&
+                     (xProp->getPropertyValue( "Role" ) >>= aRole ) &&
+                     aRole.match( m_aRole ));
+
+        return ( xProp.is() &&
+                 (xProp->getPropertyValue( "Role" ) >>= aRole ) &&
+                 m_aRole == aRole );
+    }
+
+private:
+    OUString m_aRole;
+    bool     m_bMatchPrefix;
+};
+
+Reference< chart2::data::XLabeledDataSequence > lcl_findLSequenceWithOnlyLabel(
+    const Reference< chart2::data::XDataSource > & xDataSource )
+{
+    Reference< chart2::data::XLabeledDataSequence > xResult;
+    const Sequence< Reference< chart2::data::XLabeledDataSequence > > aSequences( xDataSource->getDataSequences());
+
+    for( auto const & labeledData : aSequences )
+    {
+        OSL_ENSURE( labeledData.is(), "empty LabeledDataSequence" );
+        // no values are set but a label exists
+        if( labeledData.is() &&
+            ( ! labeledData->getValues().is() &&
+              labeledData->getLabel().is()))
+        {
+            xResult.set( labeledData );
+            break;
+        }
+    }
+
+    return xResult;
+}
+
+void lcl_getCooSysAndChartTypeOfSeries(
+    const rtl::Reference< ::chart::DataSeries > & xSeries,
+    const Reference< chart2::XDiagram > & xDiagram,
+    rtl::Reference< ::chart::BaseCoordinateSystem > & xOutCooSys,
+    rtl::Reference< ::chart::ChartType > & xOutChartType )
+{
+    if( !xDiagram.is())
+        return;
+    ::chart::Diagram* pDiagram = dynamic_cast<::chart::Diagram*>(xDiagram.get());
+
+    for( rtl::Reference< ::chart::BaseCoordinateSystem > const & coords : pDiagram->getBaseCoordinateSystems() )
+    {
+        for( rtl::Reference< ::chart::ChartType > const & chartType : coords->getChartTypes2() )
+        {
+            for( rtl::Reference< ::chart::DataSeries > const & dataSeries : chartType->getDataSeries2() )
+            {
+                if( dataSeries == xSeries )
+                {
+                    xOutCooSys = coords;
+                    xOutChartType = chartType;
+                }
+            }
+        }
+    }
+}
+
+void lcl_insertOrDeleteDataLabelsToSeriesAndAllPoints( const Reference< chart2::XDataSeries >& xSeries, bool bInsert )
+{
+    try
+    {
+        Reference< beans::XPropertySet > xSeriesProperties( xSeries, uno::UNO_QUERY );
+        if( xSeriesProperties.is() )
+        {
+            DataPointLabel aLabelAtSeries;
+            xSeriesProperties->getPropertyValue(CHART_UNONAME_LABEL) >>= aLabelAtSeries;
+            aLabelAtSeries.ShowNumber = bInsert;
+            if( !bInsert )
+            {
+                aLabelAtSeries.ShowNumberInPercent = false;
+                aLabelAtSeries.ShowCategoryName = false;
+            }
+            xSeriesProperties->setPropertyValue(CHART_UNONAME_LABEL, uno::Any(aLabelAtSeries));
+            uno::Sequence< sal_Int32 > aAttributedDataPointIndexList;
+            if( xSeriesProperties->getPropertyValue( "AttributedDataPoints" ) >>= aAttributedDataPointIndexList )
+            {
+                for(sal_Int32 nN=aAttributedDataPointIndexList.getLength();nN--;)
+                {
+                    Reference< beans::XPropertySet > xPointProp( xSeries->getDataPointByIndex(aAttributedDataPointIndexList[nN]) );
+                    if( xPointProp.is() )
+                    {
+                        DataPointLabel aLabel;
+                        xPointProp->getPropertyValue(CHART_UNONAME_LABEL) >>= aLabel;
+                        aLabel.ShowNumber = bInsert;
+                        if( !bInsert )
+                        {
+                            aLabel.ShowNumberInPercent = false;
+                            aLabel.ShowCategoryName = false;
+                            aLabel.ShowCustomLabel = false;
+                            aLabel.ShowSeriesName = false;
+                        }
+                        xPointProp->setPropertyValue(CHART_UNONAME_LABEL, uno::Any(aLabel));
+                        xPointProp->setPropertyValue(CHART_UNONAME_CUSTOM_LABEL_FIELDS, uno::Any());
+                    }
+                }
+            }
+        }
+    }
+    catch(const uno::Exception &)
+    {
+        TOOLS_WARN_EXCEPTION("chart2", "" );
+    }
+}
+
+} // anonymous namespace
+
+namespace chart::DataSeriesHelper
+{
+
+OUString getRole( const uno::Reference< chart2::data::XLabeledDataSequence >& xLabeledDataSequence )
+{
+    OUString aRet;
+    if( xLabeledDataSequence.is() )
+    {
+        Reference< beans::XPropertySet > xProp( xLabeledDataSequence->getValues(), uno::UNO_QUERY );
+        if( xProp.is() )
+            xProp->getPropertyValue( "Role" ) >>= aRet;
+    }
+    return aRet;
+}
+
+uno::Reference< chart2::data::XLabeledDataSequence >
+    getDataSequenceByRole(
+        const Reference< chart2::data::XDataSource > & xSource,
+        const OUString& aRole,
+        bool bMatchPrefix /* = false */ )
+{
+    uno::Reference< chart2::data::XLabeledDataSequence > aNoResult;
+    if( ! xSource.is())
+        return aNoResult;
+    const Sequence< Reference< chart2::data::XLabeledDataSequence > > aLabeledSeq( xSource->getDataSequences());
+    for (auto const & i : aLabeledSeq)
+    {
+        if (lcl_MatchesRole(aRole, bMatchPrefix)(i))
+            return i;
+    }
+
+    return aNoResult;
+}
+
+std::vector< uno::Reference< chart2::data::XLabeledDataSequence > >
+    getAllDataSequencesByRole( const Sequence< Reference< chart2::data::XLabeledDataSequence > > & aDataSequences,
+                               const OUString& aRole )
+{
+    std::vector< uno::Reference< chart2::data::XLabeledDataSequence > > aResultVec;
+    for (const auto & i : aDataSequences)
+    {
+        if (lcl_MatchesRole(aRole, /*bMatchPrefix*/true)(i))
+            aResultVec.push_back(i);
+    }
+    return aResultVec;
+}
+
+std::vector< css::uno::Reference< css::chart2::data::XLabeledDataSequence > >
+    getAllDataSequencesByRole( const std::vector< uno::Reference< chart2::data::XLabeledDataSequence > > & aDataSequences,
+                               const OUString& aRole )
+{
+    std::vector< css::uno::Reference< css::chart2::data::XLabeledDataSequence > > aResultVec;
+    std::copy_if( aDataSequences.begin(), aDataSequences.end(),
+                           std::back_inserter( aResultVec ),
+                           lcl_MatchesRole(aRole, /*bMatchPrefix*/true) );
+    return aResultVec;
+}
+
+std::vector<uno::Reference<chart2::data::XLabeledDataSequence> >
+getAllDataSequences( const uno::Sequence<uno::Reference<chart2::XDataSeries> >& aSeries )
+{
+    std::vector< uno::Reference< chart2::data::XLabeledDataSequence > > aSeqVec;
+
+    for( uno::Reference<chart2::XDataSeries> const & dataSeries : aSeries )
+    {
+        Reference< chart2::data::XDataSource > xSource( dataSeries, uno::UNO_QUERY );
+        if( xSource.is())
+        {
+            const Sequence< Reference< chart2::data::XLabeledDataSequence > > aSeq( xSource->getDataSequences());
+            for (const auto & i : aSeq)
+            {
+                aSeqVec.push_back(i);
+            }
+        }
+    }
+
+    return aSeqVec;
+}
+
+std::vector<uno::Reference<chart2::data::XLabeledDataSequence> >
+getAllDataSequences( const std::vector<rtl::Reference<DataSeries> >& aSeries )
+{
+    std::vector< uno::Reference< chart2::data::XLabeledDataSequence > > aSeqVec;
+
+    for( rtl::Reference<DataSeries> const & dataSeries : aSeries )
+    {
+        const std::vector< uno::Reference< chart2::data::XLabeledDataSequence > > & aSeq( dataSeries->getDataSequences2());
+        aSeqVec.insert( aSeqVec.end(), aSeq.begin(), aSeq.end() );
+    }
+
+    return aSeqVec;
+}
+
+rtl::Reference< DataSource >
+    getDataSource( const std::vector< rtl::Reference< DataSeries > > & aSeries )
+{
+    return new DataSource(getAllDataSequences(aSeries));
+}
+
+namespace
+{
+OUString lcl_getDataSequenceLabel( const Reference< chart2::data::XDataSequence > & xSequence )
+{
+    OUString aResult;
+
+    Reference< chart2::data::XTextualDataSequence > xTextSeq( xSequence, uno::UNO_QUERY );
+    if( xTextSeq.is())
+    {
+        Sequence< OUString > aSeq( xTextSeq->getTextualData());
+
+        const sal_Int32 nMax = aSeq.getLength() - 1;
+        OUStringBuffer aBuf;
+
+        for( sal_Int32 i = 0; i <= nMax; ++i )
+        {
+            aBuf.append( aSeq[i] );
+            if( i < nMax )
+                aBuf.append( ' ');
+        }
+        aResult = aBuf.makeStringAndClear();
+    }
+    else if( xSequence.is())
+    {
+        Sequence< uno::Any > aSeq( xSequence->getData());
+
+        const sal_Int32 nMax = aSeq.getLength() - 1;
+        OUString aVal;
+        OUStringBuffer aBuf;
+        double fNum = 0;
+
+        for( sal_Int32 i = 0; i <= nMax; ++i )
+        {
+            if( aSeq[i] >>= aVal )
+            {
+                aBuf.append( aVal );
+                if( i < nMax )
+                    aBuf.append(  ' ');
+            }
+            else if( aSeq[ i ] >>= fNum )
+            {
+                aBuf.append( fNum );
+                if( i < nMax )
+                    aBuf.append( ' ');
+            }
+        }
+        aResult = aBuf.makeStringAndClear();
+    }
+
+    return aResult;
+}
+}
+
+OUString getLabelForLabeledDataSequence(
+    const Reference< chart2::data::XLabeledDataSequence > & xLabeledSeq )
+{
+    OUString aResult;
+    if( xLabeledSeq.is())
+    {
+        Reference< chart2::data::XDataSequence > xSeq( xLabeledSeq->getLabel());
+        if( xSeq.is() )
+            aResult = lcl_getDataSequenceLabel( xSeq );
+        if( !xSeq.is() || aResult.isEmpty() )
+        {
+            // no label set or label content is empty -> use auto-generated one
+            Reference< chart2::data::XDataSequence > xValueSeq( xLabeledSeq->getValues() );
+            if( xValueSeq.is() )
+            {
+                Sequence< OUString > aLabels( xValueSeq->generateLabel(
+                    chart2::data::LabelOrigin_SHORT_SIDE ) );
+                // no labels returned is interpreted as: auto-generation not
+                // supported by sequence
+                if( aLabels.hasElements() )
+                    aResult=aLabels[0];
+                else
+                {
+                    //todo?: maybe use the index of the series as name
+                    //but as the index may change it would be better to have such a name persistent
+                    //what is not possible at the moment
+                    //--> maybe use the identifier as part of the name ...
+                    aResult = lcl_getDataSequenceLabel( xValueSeq );
+                }
+            }
+        }
+    }
+    return aResult;
+}
+
+OUString getDataSeriesLabel(
+    const rtl::Reference< DataSeries > & xSeries,
+    const OUString & rLabelSequenceRole )
+{
+    OUString aResult;
+
+    if( xSeries.is())
+    {
+        Reference< chart2::data::XLabeledDataSequence > xLabeledSeq(
+            ::chart::DataSeriesHelper::getDataSequenceByRole( xSeries, rLabelSequenceRole ));
+        if( xLabeledSeq.is())
+            aResult = getLabelForLabeledDataSequence( xLabeledSeq );
+        else
+        {
+            // special case: labeled data series with only a label and no values may
+            // serve as label
+            xLabeledSeq.set( lcl_findLSequenceWithOnlyLabel( xSeries ));
+            if( xLabeledSeq.is())
+            {
+                Reference< chart2::data::XDataSequence > xSeq( xLabeledSeq->getLabel());
+                if( xSeq.is())
+                    aResult = lcl_getDataSequenceLabel( xSeq );
+            }
+        }
+
+    }
+
+    return aResult;
+}
+
+void setStackModeAtSeries(
+    const std::vector< rtl::Reference< DataSeries > > & aSeries,
+    const rtl::Reference< BaseCoordinateSystem > & xCorrespondingCoordinateSystem,
+    StackMode eStackMode )
+{
+    const uno::Any aPropValue(
+        ( (eStackMode == StackMode::YStacked) ||
+          (eStackMode == StackMode::YStackedPercent) )
+        ? chart2::StackingDirection_Y_STACKING
+        : (eStackMode == StackMode::ZStacked )
+        ? chart2::StackingDirection_Z_STACKING
+        : chart2::StackingDirection_NO_STACKING );
+
+    std::set< sal_Int32 > aAxisIndexSet;
+    for( rtl::Reference< DataSeries > const & dataSeries : aSeries )
+    {
+        try
+        {
+            if( dataSeries.is() )
+            {
+                dataSeries->setPropertyValue( "StackingDirection", aPropValue );
+
+                sal_Int32 nAxisIndex;
+                dataSeries->getPropertyValue( "AttachedAxisIndex" ) >>= nAxisIndex;
+                aAxisIndexSet.insert(nAxisIndex);
+            }
+        }
+        catch( const uno::Exception & )
+        {
+            DBG_UNHANDLED_EXCEPTION("chart2");
+        }
+    }
+
+    if( !(xCorrespondingCoordinateSystem.is() &&
+        1 < xCorrespondingCoordinateSystem->getDimension()) )
+        return;
+
+    if( aAxisIndexSet.empty() )
+    {
+        aAxisIndexSet.insert(0);
+    }
+
+    for (auto const& axisIndex : aAxisIndexSet)
+    {
+        rtl::Reference< Axis > xAxis =
+            xCorrespondingCoordinateSystem->getAxisByDimension2(1, axisIndex);
+        if( xAxis.is())
+        {
+            bool bPercent = (eStackMode == StackMode::YStackedPercent);
+            chart2::ScaleData aScaleData = xAxis->getScaleData();
+
+            if( bPercent != (aScaleData.AxisType==chart2::AxisType::PERCENT) )
+            {
+                if( bPercent )
+                    aScaleData.AxisType = chart2::AxisType::PERCENT;
+                else
+                    aScaleData.AxisType = chart2::AxisType::REALNUMBER;
+                xAxis->setScaleData( aScaleData );
+            }
+        }
+    }
+}
+
+sal_Int32 getAttachedAxisIndex( const Reference< chart2::XDataSeries > & xSeries )
+{
+    sal_Int32 nRet = 0;
+    try
+    {
+        Reference< beans::XPropertySet > xProp( xSeries, uno::UNO_QUERY );
+        if( xProp.is() )
+        {
+            xProp->getPropertyValue( "AttachedAxisIndex" ) >>= nRet;
+        }
+    }
+    catch( const uno::Exception & )
+    {
+        DBG_UNHANDLED_EXCEPTION("chart2");
+    }
+    return nRet;
+}
+
+sal_Int32 getNumberFormatKeyFromAxis(
+    const Reference< chart2::XDataSeries > & xSeries,
+    const rtl::Reference< BaseCoordinateSystem > & xCorrespondingCoordinateSystem,
+    sal_Int32 nDimensionIndex,
+    sal_Int32 nAxisIndex /* = -1 */ )
+{
+    sal_Int32 nResult =  0;
+    if( nAxisIndex == -1 )
+        nAxisIndex = getAttachedAxisIndex( xSeries );
+    try
+    {
+        rtl::Reference< Axis > xAxisProp =
+            xCorrespondingCoordinateSystem->getAxisByDimension2( nDimensionIndex, nAxisIndex );
+        if( xAxisProp.is())
+            xAxisProp->getPropertyValue(CHART_UNONAME_NUMFMT) >>= nResult;
+    }
+    catch( const uno::Exception & )
+    {
+        DBG_UNHANDLED_EXCEPTION("chart2");
+    }
+
+    return nResult;
+}
+
+rtl::Reference< ::chart::BaseCoordinateSystem > getCoordinateSystemOfSeries(
+    const Reference< chart2::XDataSeries > & xSeries,
+    const rtl::Reference< Diagram > & xDiagram )
+{
+    rtl::Reference< ::chart::BaseCoordinateSystem > xResult;
+    rtl::Reference< ::chart::ChartType > xDummy;
+    rtl::Reference< DataSeries> pSeries = dynamic_cast<DataSeries*>(xSeries.get());
+    assert(pSeries);
+    lcl_getCooSysAndChartTypeOfSeries( pSeries, xDiagram, xResult, xDummy );
+
+    return xResult;
+}
+
+rtl::Reference< ::chart::ChartType > getChartTypeOfSeries(
+    const Reference< chart2::XDataSeries > & xSeries,
+    const rtl::Reference< Diagram > & xDiagram )
+{
+    rtl::Reference< ::chart::ChartType > xResult;
+    rtl::Reference< ::chart::BaseCoordinateSystem > xDummy;
+    rtl::Reference< DataSeries> pSeries = dynamic_cast<DataSeries*>(xSeries.get());
+    assert(pSeries);
+    lcl_getCooSysAndChartTypeOfSeries( pSeries, xDiagram, xDummy, xResult );
+
+    return xResult;
+}
+
+void deleteSeries(
+    const Reference< chart2::XDataSeries > & xSeries,
+    const rtl::Reference< ::chart::ChartType > & xChartType )
+{
+    try
+    {
+        rtl::Reference<DataSeries> pSeries = dynamic_cast<DataSeries*>(xSeries.get());
+        assert(pSeries);
+        std::vector< rtl::Reference< DataSeries > > aSeries = xChartType->getDataSeries2();
+        auto aIt = std::find( aSeries.begin(), aSeries.end(), pSeries );
+        if( aIt != aSeries.end())
+        {
+            aSeries.erase( aIt );
+            xChartType->setDataSeries( aSeries );
+        }
+    }
+    catch( const uno::Exception & )
+    {
+        DBG_UNHANDLED_EXCEPTION("chart2");
+    }
+}
+
+void switchSymbolsOnOrOff( const Reference< beans::XPropertySet > & xSeriesProperties,
+                    bool bSymbolsOn, sal_Int32 nSeriesIndex )
+{
+    if( !xSeriesProperties.is() )
+        return;
+
+    chart2::Symbol aSymbProp;
+    if( xSeriesProperties->getPropertyValue( "Symbol") >>= aSymbProp )
+    {
+        if( !bSymbolsOn )
+            aSymbProp.Style = chart2::SymbolStyle_NONE;
+        else if( aSymbProp.Style == chart2::SymbolStyle_NONE )
+        {
+            aSymbProp.Style = chart2::SymbolStyle_STANDARD;
+            aSymbProp.StandardSymbol = nSeriesIndex;
+        }
+        xSeriesProperties->setPropertyValue( "Symbol", uno::Any( aSymbProp ));
+    }
+    //todo: check attributed data points
+}
+
+void switchLinesOnOrOff( const Reference< beans::XPropertySet > & xSeriesProperties, bool bLinesOn )
+{
+    if( !xSeriesProperties.is() )
+        return;
+
+    if( bLinesOn )
+    {
+        // keep line-styles that are not NONE
+        drawing::LineStyle eLineStyle;
+        if( (xSeriesProperties->getPropertyValue( "LineStyle") >>= eLineStyle ) &&
+            eLineStyle == drawing::LineStyle_NONE )
+        {
+            xSeriesProperties->setPropertyValue( "LineStyle", uno::Any( drawing::LineStyle_SOLID ) );
+        }
+    }
+    else
+        xSeriesProperties->setPropertyValue( "LineStyle", uno::Any( drawing::LineStyle_NONE ) );
+}
+
+void makeLinesThickOrThin( const Reference< beans::XPropertySet > & xSeriesProperties, bool bThick )
+{
+    if( !xSeriesProperties.is() )
+        return;
+
+    sal_Int32 nNewValue = bThick ? 80 : 0;
+    sal_Int32 nOldValue = 0;
+    if( (xSeriesProperties->getPropertyValue( "LineWidth") >>= nOldValue ) &&
+        nOldValue != nNewValue )
+    {
+        if( !(bThick && nOldValue>0))
+            xSeriesProperties->setPropertyValue( "LineWidth", uno::Any( nNewValue ) );
+    }
+}
+
+void setPropertyAlsoToAllAttributedDataPoints( const Reference< chart2::XDataSeries >& xSeries,
+                                              const OUString& rPropertyName, const uno::Any& rPropertyValue )
+{
+    rtl::Reference<DataSeries> pSeries = dynamic_cast<DataSeries*>(xSeries.get());
+    assert(!xSeries || pSeries);
+    setPropertyAlsoToAllAttributedDataPoints(pSeries, rPropertyName, rPropertyValue);
+}
+
+void setPropertyAlsoToAllAttributedDataPoints( const rtl::Reference< ::chart::DataSeries >& xSeries,
+                                              const OUString& rPropertyName, const uno::Any& rPropertyValue )
+{
+    if( !xSeries.is() )
+        return;
+
+    xSeries->setPropertyValue( rPropertyName, rPropertyValue );
+    uno::Sequence< sal_Int32 > aAttributedDataPointIndexList;
+    if( xSeries->getPropertyValue( "AttributedDataPoints" ) >>= aAttributedDataPointIndexList )
+    {
+        for(sal_Int32 nN=aAttributedDataPointIndexList.getLength();nN--;)
+        {
+            Reference< beans::XPropertySet > xPointProp( xSeries->getDataPointByIndex(aAttributedDataPointIndexList[nN]) );
+            if(!xPointProp.is())
+                continue;
+            xPointProp->setPropertyValue( rPropertyName, rPropertyValue );
+            if( rPropertyName == "LabelPlacement" )
+                xPointProp->setPropertyValue("CustomLabelPosition", uno::Any());
+        }
+    }
+}
+
+bool hasAttributedDataPointDifferentValue( const Reference< chart2::XDataSeries >& xSeries,
+                                              const OUString& rPropertyName, const uno::Any& rPropertyValue )
+{
+    Reference< beans::XPropertySet > xSeriesProperties( xSeries, uno::UNO_QUERY );
+    if( !xSeriesProperties.is() )
+        return false;
+
+    uno::Sequence< sal_Int32 > aAttributedDataPointIndexList;
+    if( xSeriesProperties->getPropertyValue( "AttributedDataPoints" ) >>= aAttributedDataPointIndexList )
+    {
+        for(sal_Int32 nN=aAttributedDataPointIndexList.getLength();nN--;)
+        {
+            Reference< beans::XPropertySet > xPointProp( xSeries->getDataPointByIndex(aAttributedDataPointIndexList[nN]) );
+            if(!xPointProp.is())
+                continue;
+            uno::Any aPointValue( xPointProp->getPropertyValue( rPropertyName ) );
+            if( rPropertyValue != aPointValue )
+                return true;
+        }
+    }
+    return false;
+}
+
+namespace
+{
+
+bool lcl_SequenceHasUnhiddenData( const uno::Reference< chart2::data::XDataSequence >& xDataSequence )
+{
+    if( !xDataSequence.is() )
+        return false;
+    uno::Reference< beans::XPropertySet > xProp( xDataSequence, uno::UNO_QUERY );
+    if( xProp.is() )
+    {
+        uno::Sequence< sal_Int32 > aHiddenValues;
+        try
+        {
+            xProp->getPropertyValue( "HiddenValues" ) >>= aHiddenValues;
+            if( !aHiddenValues.hasElements() )
+                return true;
+        }
+        catch( const uno::Exception& )
+        {
+            return true;
+        }
+    }
+    return xDataSequence->getData().hasElements();
+}
+
+}
+
+bool hasUnhiddenData( const uno::Reference< chart2::XDataSeries >& xSeries )
+{
+    uno::Reference< chart2::data::XDataSource > xDataSource( xSeries, uno::UNO_QUERY );
+
+    uno::Sequence< uno::Reference< chart2::data::XLabeledDataSequence > > aDataSequences = xDataSource->getDataSequences();
+
+    for(sal_Int32 nN = aDataSequences.getLength();nN--;)
+    {
+        if( !aDataSequences[nN].is() )
+            continue;
+        if( lcl_SequenceHasUnhiddenData( aDataSequences[nN]->getValues() ) )
+            return true;
+    }
+    return false;
+}
+
+sal_Int32 translateIndexFromHiddenToFullSequence( sal_Int32 nIndex, const Reference< chart2::data::XDataSequence >& xDataSequence, bool bTranslate )
+{
+    if( !bTranslate )
+        return nIndex;
+
+    try
+    {
+        uno::Reference<beans::XPropertySet> xProp( xDataSequence, uno::UNO_QUERY );
+        if( xProp.is())
+        {
+            Sequence<sal_Int32> aHiddenIndicesSeq;
+            xProp->getPropertyValue( "HiddenValues" ) >>= aHiddenIndicesSeq;
+            if( aHiddenIndicesSeq.hasElements() )
+            {
+                auto aHiddenIndices( comphelper::sequenceToContainer<std::vector< sal_Int32 >>( aHiddenIndicesSeq ) );
+                std::sort( aHiddenIndices.begin(), aHiddenIndices.end() );
+
+                sal_Int32 nHiddenCount = static_cast<sal_Int32>(aHiddenIndices.size());
+                for( sal_Int32 nN = 0; nN < nHiddenCount; ++nN)
+                {
+                    if( aHiddenIndices[nN] <= nIndex )
+                        nIndex += 1;
+                    else
+                        break;
+                }
+            }
+        }
+    }
+    catch (const beans::UnknownPropertyException&)
+    {
+    }
+    return nIndex;
+}
+
+bool hasDataLabelsAtSeries( const Reference< chart2::XDataSeries >& xSeries )
+{
+    bool bRet = false;
+    try
+    {
+        Reference< beans::XPropertySet > xProp( xSeries, uno::UNO_QUERY );
+        if( xProp.is() )
+        {
+            DataPointLabel aLabel;
+            if( xProp->getPropertyValue(CHART_UNONAME_LABEL) >>= aLabel )
+                bRet = aLabel.ShowNumber || aLabel.ShowNumberInPercent || aLabel.ShowCategoryName
+                       || aLabel.ShowSeriesName;
+        }
+    }
+    catch(const uno::Exception &)
+    {
+        TOOLS_WARN_EXCEPTION("chart2", "" );
+    }
+    return bRet;
+}
+
+bool hasDataLabelsAtPoints( const Reference< chart2::XDataSeries >& xSeries )
+{
+    bool bRet = false;
+    try
+    {
+        Reference< beans::XPropertySet > xSeriesProperties( xSeries, uno::UNO_QUERY );
+        if( xSeriesProperties.is() )
+        {
+            uno::Sequence< sal_Int32 > aAttributedDataPointIndexList;
+            if( xSeriesProperties->getPropertyValue( "AttributedDataPoints" ) >>= aAttributedDataPointIndexList )
+            {
+                for(sal_Int32 nN=aAttributedDataPointIndexList.getLength();nN--;)
+                {
+                    Reference< beans::XPropertySet > xPointProp( xSeries->getDataPointByIndex(aAttributedDataPointIndexList[nN]) );
+                    if( xPointProp.is() )
+                    {
+                        DataPointLabel aLabel;
+                        if( xPointProp->getPropertyValue(CHART_UNONAME_LABEL) >>= aLabel )
+                            bRet = aLabel.ShowNumber || aLabel.ShowNumberInPercent
+                                   || aLabel.ShowCategoryName || aLabel.ShowCustomLabel
+                                   || aLabel.ShowSeriesName;
+                        if( bRet )
+                            break;
+                    }
+                }
+            }
+        }
+    }
+    catch(const uno::Exception &)
+    {
+        TOOLS_WARN_EXCEPTION("chart2", "" );
+    }
+    return bRet;
+}
+
+bool hasDataLabelAtPoint( const Reference< chart2::XDataSeries >& xSeries, sal_Int32 nPointIndex )
+{
+    bool bRet = false;
+    try
+    {
+        Reference< beans::XPropertySet > xProp;
+        Reference< beans::XPropertySet > xSeriesProperties( xSeries, uno::UNO_QUERY );
+        if( xSeriesProperties.is() )
+        {
+            uno::Sequence< sal_Int32 > aAttributedDataPointIndexList;
+            if( xSeriesProperties->getPropertyValue( "AttributedDataPoints" ) >>= aAttributedDataPointIndexList )
+            {
+                auto aIt = std::find( std::as_const(aAttributedDataPointIndexList).begin(), std::as_const(aAttributedDataPointIndexList).end(), nPointIndex );
+                if( aIt != std::as_const(aAttributedDataPointIndexList).end())
+                    xProp = xSeries->getDataPointByIndex(nPointIndex);
+                else
+                    xProp = xSeriesProperties;
+            }
+            if( xProp.is() )
+            {
+                DataPointLabel aLabel;
+                if( xProp->getPropertyValue(CHART_UNONAME_LABEL) >>= aLabel )
+                    bRet = aLabel.ShowNumber || aLabel.ShowNumberInPercent
+                           || aLabel.ShowCategoryName || aLabel.ShowCustomLabel
+                           || aLabel.ShowSeriesName;
+            }
+        }
+    }
+    catch(const uno::Exception &)
+    {
+        TOOLS_WARN_EXCEPTION("chart2", "" );
+    }
+    return bRet;
+}
+
+void insertDataLabelsToSeriesAndAllPoints( const Reference< chart2::XDataSeries >& xSeries )
+{
+    lcl_insertOrDeleteDataLabelsToSeriesAndAllPoints( xSeries, true /*bInsert*/ );
+}
+
+void deleteDataLabelsFromSeriesAndAllPoints( const Reference< chart2::XDataSeries >& xSeries )
+{
+    lcl_insertOrDeleteDataLabelsToSeriesAndAllPoints( xSeries, false /*bInsert*/ );
+}
+
+void insertDataLabelToPoint( const Reference< beans::XPropertySet >& xPointProp )
+{
+    try
+    {
+        if( xPointProp.is() )
+        {
+            DataPointLabel aLabel;
+            xPointProp->getPropertyValue(CHART_UNONAME_LABEL) >>= aLabel;
+            aLabel.ShowNumber = true;
+            xPointProp->setPropertyValue(CHART_UNONAME_LABEL, uno::Any(aLabel));
+        }
+    }
+    catch(const uno::Exception &)
+    {
+        TOOLS_WARN_EXCEPTION("chart2", "" );
+    }
+}
+
+void deleteDataLabelsFromPoint( const Reference< beans::XPropertySet >& xPointProp )
+{
+    try
+    {
+        if( xPointProp.is() )
+        {
+            DataPointLabel aLabel;
+            xPointProp->getPropertyValue(CHART_UNONAME_LABEL) >>= aLabel;
+            aLabel.ShowNumber = false;
+            aLabel.ShowNumberInPercent = false;
+            aLabel.ShowCategoryName = false;
+            aLabel.ShowCustomLabel = false;
+            aLabel.ShowSeriesName = false;
+            xPointProp->setPropertyValue(CHART_UNONAME_LABEL, uno::Any(aLabel));
+            xPointProp->setPropertyValue(CHART_UNONAME_CUSTOM_LABEL_FIELDS, uno::Any());
+        }
+    }
+    catch(const uno::Exception &)
+    {
+        TOOLS_WARN_EXCEPTION("chart2", "" );
+    }
+}
+
+} //  namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */