chart2/qa/extras/PivotChartTest.cxx                                            
    |    4 ++--
 chart2/source/controller/chartapiwrapper/AreaWrapper.cxx                       
    |    5 +----
 chart2/source/controller/chartapiwrapper/AxisWrapper.cxx                       
    |    5 +----
 chart2/source/controller/chartapiwrapper/Chart2ModelContact.cxx                
    |    5 +----
 chart2/source/controller/chartapiwrapper/ChartDataWrapper.cxx                  
    |    5 +----
 chart2/source/controller/chartapiwrapper/ChartDocumentWrapper.cxx              
    |    5 +----
 chart2/source/controller/chartapiwrapper/DataSeriesPointWrapper.cxx            
    |    5 +----
 chart2/source/controller/chartapiwrapper/DiagramWrapper.cxx                    
    |    5 +----
 chart2/source/controller/chartapiwrapper/GridWrapper.cxx                       
    |    5 +----
 chart2/source/controller/chartapiwrapper/LegendWrapper.cxx                     
    |    5 +----
 chart2/source/controller/chartapiwrapper/MinMaxLineWrapper.cxx                 
    |    5 +----
 chart2/source/controller/chartapiwrapper/TitleWrapper.cxx                      
    |    5 +----
 chart2/source/controller/chartapiwrapper/UpDownBarWrapper.cxx                  
    |    5 +----
 chart2/source/controller/chartapiwrapper/WallFloorWrapper.cxx                  
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedAddInProperty.cxx              
    |    6 +-----
 
chart2/source/controller/chartapiwrapper/WrappedAutomaticPositionProperties.cxx 
   |    5 +----
 
chart2/source/controller/chartapiwrapper/WrappedAxisAndGridExistenceProperties.cxx
 |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedCharacterHeightProperty.cxx    
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedDataCaptionProperties.cxx      
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedGapwidthProperty.cxx           
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedNumberFormatProperty.cxx       
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedScaleProperty.cxx              
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedScaleTextProperties.cxx        
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedSceneProperty.cxx              
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedSeriesAreaOrLineProperty.cxx   
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedSplineProperties.cxx           
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedStatisticProperties.cxx        
    |    7 ++-----
 chart2/source/controller/chartapiwrapper/WrappedStockProperties.cxx            
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedSymbolProperties.cxx           
    |    5 +----
 chart2/source/controller/chartapiwrapper/WrappedTextRotationProperty.cxx       
    |    2 +-
 chart2/source/controller/dialogs/dlg_ChartType_UNO.cxx                         
    |    2 +-
 chart2/source/controller/dialogs/dlg_ObjectProperties.cxx                      
    |    4 ++--
 chart2/source/controller/itemsetwrapper/AxisItemConverter.cxx                  
    |    4 ++--
 chart2/source/controller/itemsetwrapper/CharacterPropertyItemConverter.cxx     
    |    4 ++--
 chart2/source/controller/itemsetwrapper/DataPointItemConverter.cxx             
    |    4 ++--
 chart2/source/controller/itemsetwrapper/ErrorBarItemConverter.cxx              
    |    5 +----
 chart2/source/controller/itemsetwrapper/GraphicPropertyItemConverter.cxx       
    |    3 +--
 chart2/source/controller/itemsetwrapper/ItemConverter.cxx                      
    |    4 ++--
 chart2/source/controller/itemsetwrapper/LegendItemConverter.cxx                
    |    5 +----
 chart2/source/controller/itemsetwrapper/MultipleChartConverters.cxx            
    |    4 ++--
 chart2/source/controller/itemsetwrapper/MultipleItemConverter.cxx              
    |    4 ++--
 chart2/source/controller/itemsetwrapper/RegressionCurveItemConverter.cxx       
    |    5 +----
 chart2/source/controller/itemsetwrapper/RegressionEquationItemConverter.cxx    
    |    4 ++--
 chart2/source/controller/itemsetwrapper/SeriesOptionsItemConverter.cxx         
    |    5 +----
 chart2/source/controller/itemsetwrapper/StatisticsItemConverter.cxx            
    |    5 +----
 chart2/source/controller/itemsetwrapper/TextLabelItemConverter.cxx             
    |    4 ++--
 chart2/source/controller/itemsetwrapper/TitleItemConverter.cxx                 
    |    3 +--
 chart2/source/controller/main/ToolbarController.cxx                            
    |    2 +-
 chart2/source/controller/main/UndoActions.cxx                                  
    |    5 +----
 chart2/source/controller/sidebar/Chart2PanelFactory.cxx                        
    |    4 ++--
 chart2/source/controller/sidebar/ChartAreaPanel.cxx                            
    |    4 ++--
 chart2/source/controller/sidebar/ChartAxisPanel.cxx                            
    |    4 ++--
 chart2/source/controller/sidebar/ChartColorWrapper.cxx                         
    |    4 ++--
 chart2/source/controller/sidebar/ChartElementsPanel.cxx                        
    |    4 ++--
 chart2/source/controller/sidebar/ChartErrorBarPanel.cxx                        
    |    4 ++--
 chart2/source/controller/sidebar/ChartLinePanel.cxx                            
    |    4 ++--
 chart2/source/controller/sidebar/ChartSeriesPanel.cxx                          
    |    4 ++--
 chart2/source/controller/sidebar/ChartSidebarModifyListener.cxx                
    |    5 ++---
 chart2/source/controller/sidebar/ChartSidebarSelectionListener.cxx             
    |    5 ++---
 chart2/source/controller/sidebar/ChartTypePanel.cxx                            
    |    5 +----
 chart2/source/model/main/CartesianCoordinateSystem.cxx                         
    |    2 +-
 chart2/source/model/main/DataSeries.cxx                                        
    |    2 +-
 chart2/source/model/main/FormattedString.cxx                                   
    |    2 +-
 chart2/source/model/main/GridProperties.cxx                                    
    |    4 ++--
 chart2/source/model/main/Legend.cxx                                            
    |    2 +-
 chart2/source/model/main/PageBackground.cxx                                    
    |    2 +-
 chart2/source/model/main/PolarCoordinateSystem.cxx                             
    |    2 +-
 chart2/source/model/main/StockBar.cxx                                          
    |    2 +-
 chart2/source/model/main/Title.cxx                                             
    |    2 +-
 chart2/source/model/template/AreaChartType.cxx                                 
    |    2 +-
 chart2/source/model/template/BarChartType.cxx                                  
    |    2 +-
 chart2/source/model/template/CandleStickChartType.cxx                          
    |    2 +-
 chart2/source/model/template/ColumnChartType.cxx                               
    |    2 +-
 chart2/source/model/template/FilledNetChartType.cxx                            
    |    2 +-
 chart2/source/model/template/LineChartType.cxx                                 
    |    2 +-
 chart2/source/tools/BaseGFXHelper.cxx                                          
    |    5 +----
 chart2/source/tools/DataSeriesHelper.cxx                                       
    |    6 +-----
 chart2/source/tools/DataSource.cxx                                             
    |    2 +-
 chart2/source/tools/ImplOPropertySet.cxx                                       
    |    5 +----
 chart2/source/tools/InternalDataProvider.cxx                                   
    |    2 +-
 chart2/source/tools/LabeledDataSequence.cxx                                    
    |    2 +-
 chart2/source/tools/ModifyListenerHelper.cxx                                   
    |    5 +----
 chart2/source/tools/ObjectIdentifier.cxx                                       
    |    2 +-
 chart2/source/tools/PropertyHelper.cxx                                         
    |    6 +-----
 chart2/source/tools/RegressionCurveModel.cxx                                   
    |    2 +-
 chart2/source/tools/RegressionEquation.cxx                                     
    |    2 +-
 chart2/source/tools/Scaling.cxx                                                
    |    2 +-
 chart2/source/tools/WrappedDefaultProperty.cxx                                 
    |    2 +-
 chart2/source/tools/XMLRangeHelper.cxx                                         
    |    5 +----
 chart2/source/view/main/ChartView.cxx                                          
    |    2 +-
 chart2/source/view/main/DrawModelWrapper.cxx                                   
    |    4 ++--
 91 files changed, 114 insertions(+), 244 deletions(-)

New commits:
commit db54dd2351a4c2d4e54e97db6ba19a65dfbee858
Author:     Noel Grandin <noel.gran...@collabora.co.uk>
AuthorDate: Tue Jan 14 15:21:18 2020 +0200
Commit:     Noel Grandin <noel.gran...@collabora.co.uk>
CommitDate: Tue Jan 14 18:09:25 2020 +0100

    clang-tidy modernize-concat-nested-namespace in chart2
    
    Change-Id: I320234b60963d80f6870a9ce1fead8e29de437aa
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/86759
    Tested-by: Jenkins
    Reviewed-by: Noel Grandin <noel.gran...@collabora.co.uk>

diff --git a/chart2/qa/extras/PivotChartTest.cxx 
b/chart2/qa/extras/PivotChartTest.cxx
index bafec060c31e..91a43cf334ef 100644
--- a/chart2/qa/extras/PivotChartTest.cxx
+++ b/chart2/qa/extras/PivotChartTest.cxx
@@ -28,8 +28,8 @@
 #include <com/sun/star/chart2/data/XPivotTableDataProvider.hpp>
 #include <com/sun/star/chart2/data/XTextualDataSequence.hpp>
 
-namespace com { namespace sun { namespace star { namespace table { class 
XCellRange; } } } }
-namespace com { namespace sun { namespace star { namespace util { class 
XNumberFormats; } } } }
+namespace com::sun::star::table { class XCellRange; }
+namespace com::sun::star::util { class XNumberFormats; }
 
 class PivotChartTest : public ChartTest
 {
diff --git a/chart2/source/controller/chartapiwrapper/AreaWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/AreaWrapper.cxx
index 9948a284eb18..83728eb4c993 100644
--- a/chart2/source/controller/chartapiwrapper/AreaWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/AreaWrapper.cxx
@@ -68,9 +68,7 @@ struct StaticAreaWrapperPropertyArray : public 
rtl::StaticAggregate< Sequence< P
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 AreaWrapper::AreaWrapper(const std::shared_ptr<Chart2ModelContact>& 
spChart2ModelContact)
@@ -174,7 +172,6 @@ css::uno::Sequence< OUString > SAL_CALL 
AreaWrapper::getSupportedServiceNames()
         "com.sun.star.drawing.LineProperties" };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/AxisWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/AxisWrapper.cxx
index fd28c36a4ff7..3516d7a29ba2 100644
--- a/chart2/source/controller/chartapiwrapper/AxisWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/AxisWrapper.cxx
@@ -356,9 +356,7 @@ struct StaticAxisWrapperPropertyArray : public 
rtl::StaticAggregate< Sequence< P
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 AxisWrapper::AxisWrapper(
@@ -660,7 +658,6 @@ css::uno::Sequence< OUString > SAL_CALL 
AxisWrapper::getSupportedServiceNames()
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/Chart2ModelContact.cxx 
b/chart2/source/controller/chartapiwrapper/Chart2ModelContact.cxx
index 00f7bd590fd0..6747d743f4b4 100644
--- a/chart2/source/controller/chartapiwrapper/Chart2ModelContact.cxx
+++ b/chart2/source/controller/chartapiwrapper/Chart2ModelContact.cxx
@@ -35,9 +35,7 @@ using namespace ::com::sun::star::chart2;
 
 using ::com::sun::star::uno::Reference;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 Chart2ModelContact::Chart2ModelContact(
@@ -296,7 +294,6 @@ awt::Point Chart2ModelContact::GetAxisPosition( const 
uno::Reference< css::chart
     return aPoint;
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/ChartDataWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/ChartDataWrapper.cxx
index 73811542998d..2ba9fd16d211 100644
--- a/chart2/source/controller/chartapiwrapper/ChartDataWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/ChartDataWrapper.cxx
@@ -85,9 +85,7 @@ uno::Sequence< uno::Sequence< double > > 
lcl_getDBL_MINInsteadNAN( const uno::Se
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 struct lcl_Operator
@@ -692,7 +690,6 @@ css::uno::Sequence< OUString > SAL_CALL 
ChartDataWrapper::getSupportedServiceNam
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/ChartDocumentWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/ChartDocumentWrapper.cxx
index 7a732225d6de..74b0bf7bb65c 100644
--- a/chart2/source/controller/chartapiwrapper/ChartDocumentWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/ChartDocumentWrapper.cxx
@@ -243,9 +243,7 @@ struct StaticChartDocumentWrapperPropertyArray : public 
rtl::StaticAggregate< Se
 
 } //  anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 namespace {
@@ -1444,7 +1442,6 @@ css::uno::Sequence< OUString > SAL_CALL 
ChartDocumentWrapper::getSupportedServic
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
diff --git 
a/chart2/source/controller/chartapiwrapper/DataSeriesPointWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/DataSeriesPointWrapper.cxx
index 09ccd200521f..db8fd95abea7 100644
--- a/chart2/source/controller/chartapiwrapper/DataSeriesPointWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/DataSeriesPointWrapper.cxx
@@ -416,9 +416,7 @@ void WrappedLineStyleProperty::setPropertyToDefault( const 
Reference< beans::XPr
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 DataSeriesPointWrapper::DataSeriesPointWrapper(const 
std::shared_ptr<Chart2ModelContact>& spChart2ModelContact)
@@ -852,7 +850,6 @@ css::uno::Sequence< OUString > SAL_CALL 
DataSeriesPointWrapper::getSupportedServ
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/DiagramWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/DiagramWrapper.cxx
index 07d48ff4eb9d..03cea203ea26 100644
--- a/chart2/source/controller/chartapiwrapper/DiagramWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/DiagramWrapper.cxx
@@ -567,9 +567,7 @@ OUString lcl_getOldChartTypeName( const OUString & 
rNewChartTypeName )
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 DiagramWrapper::DiagramWrapper(const std::shared_ptr<Chart2ModelContact>& 
spChart2ModelContact)
@@ -1927,7 +1925,6 @@ css::uno::Sequence< OUString > SAL_CALL 
DiagramWrapper::getSupportedServiceNames
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/GridWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/GridWrapper.cxx
index aee6ad0aa672..a08df2d94f0e 100644
--- a/chart2/source/controller/chartapiwrapper/GridWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/GridWrapper.cxx
@@ -68,9 +68,7 @@ struct StaticGridWrapperPropertyArray : public 
rtl::StaticAggregate< Sequence< P
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 GridWrapper::GridWrapper(tGridType eType, const 
std::shared_ptr<Chart2ModelContact>& spChart2ModelContact)
@@ -184,7 +182,6 @@ css::uno::Sequence< OUString > SAL_CALL 
GridWrapper::getSupportedServiceNames()
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/LegendWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/LegendWrapper.cxx
index 21da1f1c6ceb..e4059c6d4b74 100644
--- a/chart2/source/controller/chartapiwrapper/LegendWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/LegendWrapper.cxx
@@ -258,9 +258,7 @@ struct StaticLegendWrapperPropertyArray : public 
rtl::StaticAggregate< Sequence<
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 LegendWrapper::LegendWrapper(const std::shared_ptr<Chart2ModelContact>& 
spChart2ModelContact)
@@ -420,7 +418,6 @@ css::uno::Sequence< OUString > SAL_CALL 
LegendWrapper::getSupportedServiceNames(
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/MinMaxLineWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/MinMaxLineWrapper.cxx
index f38ff93c9bef..606c98caead1 100644
--- a/chart2/source/controller/chartapiwrapper/MinMaxLineWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/MinMaxLineWrapper.cxx
@@ -113,9 +113,7 @@ struct StaticMinMaxLineWrapperInfo : public 
rtl::StaticAggregate< uno::Reference
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 MinMaxLineWrapper::MinMaxLineWrapper(const 
std::shared_ptr<Chart2ModelContact>& spChart2ModelContact)
@@ -394,7 +392,6 @@ css::uno::Sequence< OUString > SAL_CALL 
MinMaxLineWrapper::getSupportedServiceNa
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/TitleWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/TitleWrapper.cxx
index 20495fc8e7e5..cffd22e4d56b 100644
--- a/chart2/source/controller/chartapiwrapper/TitleWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/TitleWrapper.cxx
@@ -186,9 +186,7 @@ struct StaticTitleWrapperPropertyArray : public 
rtl::StaticAggregate< Sequence<
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 TitleWrapper::TitleWrapper( ::chart::TitleHelper::eTitleType eTitleType,
@@ -508,7 +506,6 @@ css::uno::Sequence< OUString > SAL_CALL 
TitleWrapper::getSupportedServiceNames()
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/UpDownBarWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/UpDownBarWrapper.cxx
index 0343c29530a8..cf41c0066406 100644
--- a/chart2/source/controller/chartapiwrapper/UpDownBarWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/UpDownBarWrapper.cxx
@@ -119,9 +119,7 @@ struct StaticUpDownBarWrapperDefaults : public 
rtl::StaticAggregate< ::chart::tP
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 UpDownBarWrapper::UpDownBarWrapper(
@@ -362,7 +360,6 @@ css::uno::Sequence< OUString > SAL_CALL 
UpDownBarWrapper::getSupportedServiceNam
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/WallFloorWrapper.cxx 
b/chart2/source/controller/chartapiwrapper/WallFloorWrapper.cxx
index b95872fb4146..e3e5f3b5ab3c 100644
--- a/chart2/source/controller/chartapiwrapper/WallFloorWrapper.cxx
+++ b/chart2/source/controller/chartapiwrapper/WallFloorWrapper.cxx
@@ -70,9 +70,7 @@ struct StaticWallFloorWrapperPropertyArray : public 
rtl::StaticAggregate< Sequen
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 WallFloorWrapper::WallFloorWrapper( bool bWall,
@@ -166,7 +164,6 @@ css::uno::Sequence< OUString > SAL_CALL 
WallFloorWrapper::getSupportedServiceNam
     };
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/WrappedAddInProperty.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedAddInProperty.cxx
index 7a554a245745..3468b2cf317e 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedAddInProperty.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedAddInProperty.cxx
@@ -25,9 +25,7 @@ using ::com::sun::star::uno::Reference;
 using ::com::sun::star::uno::Any;
 using namespace ::com::sun::star;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 WrappedAddInProperty::WrappedAddInProperty( ChartDocumentWrapper& 
rChartDocumentWrapper )
@@ -118,8 +116,6 @@ Any WrappedRefreshAddInAllowedProperty::getPropertyValue( 
const Reference< beans
     return uno::Any( m_rChartDocumentWrapper.getUpdateAddIn() );
 }
 
-} //namespace wrapper
-
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedAutomaticPositionProperties.cxx
 
b/chart2/source/controller/chartapiwrapper/WrappedAutomaticPositionProperties.cxx
index 58e89e439b00..d402cf7b3eda 100644
--- 
a/chart2/source/controller/chartapiwrapper/WrappedAutomaticPositionProperties.cxx
+++ 
b/chart2/source/controller/chartapiwrapper/WrappedAutomaticPositionProperties.cxx
@@ -30,9 +30,7 @@ using ::com::sun::star::uno::Any;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::beans::Property;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 namespace {
@@ -120,7 +118,6 @@ void 
WrappedAutomaticPositionProperties::addWrappedProperties( std::vector< std:
     rList.emplace_back( new WrappedAutomaticPositionProperty() );
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedAxisAndGridExistenceProperties.cxx
 
b/chart2/source/controller/chartapiwrapper/WrappedAxisAndGridExistenceProperties.cxx
index 3949037a8a93..ef438c8a1e86 100644
--- 
a/chart2/source/controller/chartapiwrapper/WrappedAxisAndGridExistenceProperties.cxx
+++ 
b/chart2/source/controller/chartapiwrapper/WrappedAxisAndGridExistenceProperties.cxx
@@ -29,9 +29,7 @@ using namespace ::com::sun::star;
 using ::com::sun::star::uno::Any;
 using ::com::sun::star::uno::Reference;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 namespace {
@@ -398,7 +396,6 @@ Any WrappedAxisLabelExistenceProperty::getPropertyDefault( 
const Reference< bean
     return aRet;
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedCharacterHeightProperty.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedCharacterHeightProperty.cxx
index 91ea634ebaf2..ed24809c04f6 100644
--- 
a/chart2/source/controller/chartapiwrapper/WrappedCharacterHeightProperty.cxx
+++ 
b/chart2/source/controller/chartapiwrapper/WrappedCharacterHeightProperty.cxx
@@ -28,9 +28,7 @@ using namespace ::com::sun::star;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::uno::Any;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 WrappedCharacterHeightProperty_Base::WrappedCharacterHeightProperty_Base(
                             const OUString& rOuterEqualsInnerName
@@ -135,7 +133,6 @@ 
WrappedComplexCharacterHeightProperty::~WrappedComplexCharacterHeightProperty()
 {
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedDataCaptionProperties.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedDataCaptionProperties.cxx
index 4d9b77f29eb3..b36e1db06038 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedDataCaptionProperties.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedDataCaptionProperties.cxx
@@ -31,9 +31,7 @@ using namespace ::com::sun::star;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::beans::Property;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 namespace
@@ -147,7 +145,6 @@ void WrappedDataCaptionProperty::setValueToSeries( const 
Reference< beans::XProp
     xSeriesPropertySet->setPropertyValue( CHART_UNONAME_LABEL, uno::Any( 
aLabel ) );
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedGapwidthProperty.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedGapwidthProperty.cxx
index faffb951077d..0184f879e05b 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedGapwidthProperty.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedGapwidthProperty.cxx
@@ -26,9 +26,7 @@ using ::com::sun::star::uno::Reference;
 using ::com::sun::star::uno::Sequence;
 using ::com::sun::star::uno::Any;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 const sal_Int32 DEFAULT_GAPWIDTH = 100;
@@ -168,7 +166,6 @@ WrappedBarOverlapProperty::~WrappedBarOverlapProperty()
 {
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedNumberFormatProperty.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedNumberFormatProperty.cxx
index 437c97f07b43..28cf4de86522 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedNumberFormatProperty.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedNumberFormatProperty.cxx
@@ -28,9 +28,7 @@ using namespace ::com::sun::star;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::uno::Any;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 WrappedNumberFormatProperty::WrappedNumberFormatProperty(const 
std::shared_ptr<Chart2ModelContact>& spChart2ModelContact)
@@ -118,7 +116,6 @@ Any WrappedLinkNumberFormatProperty::getPropertyDefault( 
const Reference< beans:
     return uno::Any( true ); // bLink
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/WrappedScaleProperty.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedScaleProperty.cxx
index 73f2fbc61ec1..d9ad4a3e6bb4 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedScaleProperty.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedScaleProperty.cxx
@@ -34,9 +34,7 @@ using ::com::sun::star::uno::Reference;
 using ::com::sun::star::uno::Sequence;
 using ::com::sun::star::chart::TimeIncrement;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 WrappedScaleProperty::WrappedScaleProperty(tScaleProperty eScaleProperty
@@ -581,7 +579,6 @@ Any WrappedScaleProperty::getPropertyValue( tScaleProperty 
eScaleProperty, const
     return aRet;
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedScaleTextProperties.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedScaleTextProperties.cxx
index 047ad10740f1..1799f83e7fea 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedScaleTextProperties.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedScaleTextProperties.cxx
@@ -32,9 +32,7 @@ using ::com::sun::star::uno::Any;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::beans::Property;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 namespace {
@@ -135,7 +133,6 @@ void WrappedScaleTextProperties::addWrappedProperties( 
std::vector< std::unique_
     rList.emplace_back( new WrappedScaleTextProperty( spChart2ModelContact ) );
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/chartapiwrapper/WrappedSceneProperty.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedSceneProperty.cxx
index 1f5b011c3538..d65b42cd4808 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedSceneProperty.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedSceneProperty.cxx
@@ -26,9 +26,7 @@ using namespace ::com::sun::star;
 using ::com::sun::star::uno::Any;
 using ::com::sun::star::uno::Reference;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 void WrappedSceneProperty::addWrappedProperties( std::vector< 
std::unique_ptr<WrappedProperty> >& rList
@@ -98,7 +96,6 @@ Any WrappedD3DTransformMatrixProperty::getPropertyValue( 
const Reference< beans:
     return WrappedProperty::getPropertyValue( xInnerPropertySet );
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedSeriesAreaOrLineProperty.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedSeriesAreaOrLineProperty.cxx
index ee5cdbf05061..127d6b4def67 100644
--- 
a/chart2/source/controller/chartapiwrapper/WrappedSeriesAreaOrLineProperty.cxx
+++ 
b/chart2/source/controller/chartapiwrapper/WrappedSeriesAreaOrLineProperty.cxx
@@ -20,9 +20,7 @@
 #include "WrappedSeriesAreaOrLineProperty.hxx"
 #include "DataSeriesPointWrapper.hxx"
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 WrappedSeriesAreaOrLineProperty::WrappedSeriesAreaOrLineProperty(
@@ -48,7 +46,6 @@ OUString WrappedSeriesAreaOrLineProperty::getInnerName() const
     return m_aInnerAreaTypeName;
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedSplineProperties.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedSplineProperties.cxx
index 15645fa0c174..bdb38b8e7ad0 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedSplineProperties.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedSplineProperties.cxx
@@ -35,9 +35,7 @@ using ::com::sun::star::uno::Any;
 using ::com::sun::star::uno::Sequence;
 using ::com::sun::star::beans::Property;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 namespace
@@ -288,7 +286,6 @@ Any WrappedSplineTypeProperty::convertOuterToInnerValue( 
const Any& rOuterValue
     return uno::Any(aInnerValue);
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedStatisticProperties.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedStatisticProperties.cxx
index d5508eccef44..843d7efd2f8a 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedStatisticProperties.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedStatisticProperties.cxx
@@ -36,16 +36,14 @@
 #include <com/sun/star/chart2/XRegressionCurveContainer.hpp>
 #include <utility>
 
-namespace com { namespace sun { namespace star { namespace chart2 { namespace 
data { class XDataProvider; } } } } }
+namespace com::sun::star::chart2::data { class XDataProvider; }
 
 using namespace ::com::sun::star;
 using ::com::sun::star::uno::Any;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::beans::Property;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 namespace
@@ -1069,7 +1067,6 @@ void 
WrappedStatisticProperties::addWrappedPropertiesForDiagram( std::vector< st
     lcl_addWrappedProperties( rList, spChart2ModelContact, DIAGRAM  );
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedStockProperties.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedStockProperties.cxx
index 3155a969102f..1331e482292a 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedStockProperties.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedStockProperties.cxx
@@ -32,9 +32,7 @@ using namespace ::com::sun::star;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::beans::Property;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 namespace {
@@ -278,7 +276,6 @@ void WrappedStockProperties::addWrappedProperties( 
std::vector< std::unique_ptr<
     rList.emplace_back( new WrappedUpDownProperty( spChart2ModelContact ) );
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedSymbolProperties.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedSymbolProperties.cxx
index 79ed7047331c..2b599040dced 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedSymbolProperties.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedSymbolProperties.cxx
@@ -38,9 +38,7 @@ using ::com::sun::star::uno::Any;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::beans::Property;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 namespace
@@ -526,7 +524,6 @@ beans::PropertyState 
WrappedSymbolAndLinesProperty::getPropertyState( const Refe
     return beans::PropertyState_DEFAULT_VALUE;
 }
 
-} //namespace wrapper
 } //namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/chartapiwrapper/WrappedTextRotationProperty.cxx 
b/chart2/source/controller/chartapiwrapper/WrappedTextRotationProperty.cxx
index 81fa4775a83f..c35a75e31a54 100644
--- a/chart2/source/controller/chartapiwrapper/WrappedTextRotationProperty.cxx
+++ b/chart2/source/controller/chartapiwrapper/WrappedTextRotationProperty.cxx
@@ -19,7 +19,7 @@
 
 #include "WrappedTextRotationProperty.hxx"
 
-namespace com { namespace sun { namespace star { namespace beans { class 
XPropertyState; } } } }
+namespace com::sun::star::beans { class XPropertyState; }
 
 using namespace ::com::sun::star;
 using ::com::sun::star::uno::Any;
diff --git a/chart2/source/controller/dialogs/dlg_ChartType_UNO.cxx 
b/chart2/source/controller/dialogs/dlg_ChartType_UNO.cxx
index 51a3fa06ff3d..1a34d47b4f9c 100644
--- a/chart2/source/controller/dialogs/dlg_ChartType_UNO.cxx
+++ b/chart2/source/controller/dialogs/dlg_ChartType_UNO.cxx
@@ -24,7 +24,7 @@
 #include <vcl/svapp.hxx>
 #include <com/sun/star/frame/XModel.hpp>
 
-namespace com { namespace sun { namespace star { namespace awt { class 
XWindow; } } } }
+namespace com::sun::star::awt { class XWindow; }
 
 namespace chart
 {
diff --git a/chart2/source/controller/dialogs/dlg_ObjectProperties.cxx 
b/chart2/source/controller/dialogs/dlg_ObjectProperties.cxx
index 6a8b618b3c8b..6c45249b284e 100644
--- a/chart2/source/controller/dialogs/dlg_ObjectProperties.cxx
+++ b/chart2/source/controller/dialogs/dlg_ObjectProperties.cxx
@@ -63,8 +63,8 @@
 #include <svl/cjkoptions.hxx>
 #include <tools/diagnose_ex.h>
 
-namespace com { namespace sun { namespace star { namespace chart2 { class 
XChartType; } } } }
-namespace com { namespace sun { namespace star { namespace chart2 { class 
XDataSeries; } } } }
+namespace com::sun::star::chart2 { class XChartType; }
+namespace com::sun::star::chart2 { class XDataSeries; }
 
 namespace chart
 {
diff --git a/chart2/source/controller/itemsetwrapper/AxisItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/AxisItemConverter.cxx
index 855a4b8d7253..59ebe40c27fd 100644
--- a/chart2/source/controller/itemsetwrapper/AxisItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/AxisItemConverter.cxx
@@ -54,7 +54,7 @@ using ::com::sun::star::uno::Reference;
 using ::com::sun::star::chart::TimeInterval;
 using ::com::sun::star::chart::TimeIncrement;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 namespace {
 
@@ -967,6 +967,6 @@ bool AxisItemConverter::ApplySpecialItem( sal_uInt16 
nWhichId, const SfxItemSet
     return (bSetScale || bChangedOtherwise);
 }
 
-}}
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/itemsetwrapper/CharacterPropertyItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/CharacterPropertyItemConverter.cxx
index f6f8961d21d6..49945b2f5803 100644
--- a/chart2/source/controller/itemsetwrapper/CharacterPropertyItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/CharacterPropertyItemConverter.cxx
@@ -37,7 +37,7 @@
 
 using namespace ::com::sun::star;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 namespace {
 
@@ -551,6 +551,6 @@ const uno::Reference<beans::XPropertySet>& 
CharacterPropertyItemConverter::GetRe
     return m_xRefSizePropSet;
 }
 
-}}
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/itemsetwrapper/DataPointItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/DataPointItemConverter.cxx
index 0d592f4733a8..43721c24502a 100644
--- a/chart2/source/controller/itemsetwrapper/DataPointItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/DataPointItemConverter.cxx
@@ -54,7 +54,7 @@ using namespace ::com::sun::star;
 using namespace ::com::sun::star::chart2;
 using ::com::sun::star::uno::Reference;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 namespace {
 
@@ -707,6 +707,6 @@ void DataPointItemConverter::FillSpecialItem(
    }
 }
 
-}}
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/itemsetwrapper/ErrorBarItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/ErrorBarItemConverter.cxx
index d159932af642..580b81e11190 100644
--- a/chart2/source/controller/itemsetwrapper/ErrorBarItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/ErrorBarItemConverter.cxx
@@ -74,9 +74,7 @@ void lcl_getErrorIndicatorValues(
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 ErrorBarItemConverter::ErrorBarItemConverter(
@@ -430,7 +428,6 @@ void ErrorBarItemConverter::FillSpecialItem(
    }
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/itemsetwrapper/GraphicPropertyItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/GraphicPropertyItemConverter.cxx
index 0676134808e0..ffa8c29a5b77 100644
--- a/chart2/source/controller/itemsetwrapper/GraphicPropertyItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/GraphicPropertyItemConverter.cxx
@@ -43,7 +43,7 @@
 
 using namespace ::com::sun::star;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 namespace {
 
@@ -745,7 +745,6 @@ bool GraphicPropertyItemConverter::ApplySpecialItem(
     return bChanged;
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/itemsetwrapper/ItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/ItemConverter.cxx
index 0a27a52392da..c50ca18c53f4 100644
--- a/chart2/source/controller/itemsetwrapper/ItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/ItemConverter.cxx
@@ -30,7 +30,7 @@
 
 using namespace ::com::sun::star;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 ItemConverter::ItemConverter(
     const uno::Reference< beans::XPropertySet > & rPropertySet,
@@ -218,6 +218,6 @@ void ItemConverter::InvalidateUnequalItems( SfxItemSet  
&rDestSet, const SfxItem
     }
 }
 
-}}
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/itemsetwrapper/LegendItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/LegendItemConverter.cxx
index 58251f381628..a16f9094210d 100644
--- a/chart2/source/controller/itemsetwrapper/LegendItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/LegendItemConverter.cxx
@@ -33,9 +33,7 @@
 
 using namespace ::com::sun::star;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 LegendItemConverter::LegendItemConverter(
@@ -181,7 +179,6 @@ void LegendItemConverter::FillSpecialItem(
    }
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/itemsetwrapper/MultipleChartConverters.cxx 
b/chart2/source/controller/itemsetwrapper/MultipleChartConverters.cxx
index af20548504b8..c48b8b2b460a 100644
--- a/chart2/source/controller/itemsetwrapper/MultipleChartConverters.cxx
+++ b/chart2/source/controller/itemsetwrapper/MultipleChartConverters.cxx
@@ -38,7 +38,7 @@ using namespace ::com::sun::star::chart2;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::uno::Sequence;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 AllAxisItemConverter::AllAxisItemConverter(
     const uno::Reference< frame::XModel > & xChartModel,
@@ -188,6 +188,6 @@ const sal_uInt16 * 
AllSeriesStatisticsConverter::GetWhichPairs() const
     return nStatWhichPairs;
 }
 
-}}
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/itemsetwrapper/MultipleItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/MultipleItemConverter.cxx
index c060d64decf5..5937575cc775 100644
--- a/chart2/source/controller/itemsetwrapper/MultipleItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/MultipleItemConverter.cxx
@@ -23,7 +23,7 @@
 
 using namespace ::com::sun::star;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 MultipleItemConverter::MultipleItemConverter( SfxItemPool& rItemPool )
         : ItemConverter( nullptr, rItemPool )
@@ -67,6 +67,6 @@ bool MultipleItemConverter::GetItemProperty( tWhichIdType 
/*nWhichId*/, tPropert
     return false;
 }
 
-}}
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/itemsetwrapper/RegressionCurveItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/RegressionCurveItemConverter.cxx
index 2173620bf37b..f2ee1d4cbfce 100644
--- a/chart2/source/controller/itemsetwrapper/RegressionCurveItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/RegressionCurveItemConverter.cxx
@@ -80,9 +80,7 @@ void lclConvertToItemSetDouble(SfxItemSet& rItemSet, 
sal_uInt16 nWhichId, const
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 RegressionCurveItemConverter::RegressionCurveItemConverter(
@@ -332,7 +330,6 @@ void 
RegressionCurveItemConverter::FillSpecialItem(sal_uInt16 nWhichId, SfxItemS
     }
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/itemsetwrapper/RegressionEquationItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/RegressionEquationItemConverter.cxx
index 5958b362a3fb..234d2b5ba47f 100644
--- 
a/chart2/source/controller/itemsetwrapper/RegressionEquationItemConverter.cxx
+++ 
b/chart2/source/controller/itemsetwrapper/RegressionEquationItemConverter.cxx
@@ -31,7 +31,7 @@
 
 using namespace ::com::sun::star;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 namespace {
 
@@ -144,6 +144,6 @@ void RegressionEquationItemConverter::FillSpecialItem(
    }
 }
 
-}}
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/itemsetwrapper/SeriesOptionsItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/SeriesOptionsItemConverter.cxx
index 69145126e4c8..e4952bbc0329 100644
--- a/chart2/source/controller/itemsetwrapper/SeriesOptionsItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/SeriesOptionsItemConverter.cxx
@@ -37,9 +37,7 @@
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::chart2;
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 SeriesOptionsItemConverter::SeriesOptionsItemConverter(
@@ -435,7 +433,6 @@ void SeriesOptionsItemConverter::FillSpecialItem(
    }
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git 
a/chart2/source/controller/itemsetwrapper/StatisticsItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/StatisticsItemConverter.cxx
index 6d6a9f6788bd..b4c4405ff88b 100644
--- a/chart2/source/controller/itemsetwrapper/StatisticsItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/StatisticsItemConverter.cxx
@@ -209,9 +209,7 @@ void lclConvertToItemSetDouble(SfxItemSet& rItemSet, 
sal_uInt16 nWhichId, const
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace wrapper
+namespace chart::wrapper
 {
 
 StatisticsItemConverter::StatisticsItemConverter(
@@ -846,7 +844,6 @@ void StatisticsItemConverter::FillSpecialItem(
    }
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/itemsetwrapper/TextLabelItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/TextLabelItemConverter.cxx
index 81c7c8fcd9a0..70dc31a46b92 100644
--- a/chart2/source/controller/itemsetwrapper/TextLabelItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/TextLabelItemConverter.cxx
@@ -46,7 +46,7 @@ using namespace com::sun::star;
 using namespace com::sun::star::chart2;
 using com::sun::star::uno::Reference;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 namespace {
 
@@ -652,6 +652,6 @@ void TextLabelItemConverter::FillSpecialItem( sal_uInt16 
nWhichId, SfxItemSet& r
     }
 }
 
-}}
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/itemsetwrapper/TitleItemConverter.cxx 
b/chart2/source/controller/itemsetwrapper/TitleItemConverter.cxx
index bbe54492cbd9..29538c0a371c 100644
--- a/chart2/source/controller/itemsetwrapper/TitleItemConverter.cxx
+++ b/chart2/source/controller/itemsetwrapper/TitleItemConverter.cxx
@@ -33,7 +33,7 @@
 
 using namespace ::com::sun::star;
 
-namespace chart { namespace wrapper {
+namespace chart::wrapper {
 
 namespace {
 
@@ -205,7 +205,6 @@ void TitleItemConverter::FillSpecialItem(
    }
 }
 
-} //  namespace wrapper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/main/ToolbarController.cxx 
b/chart2/source/controller/main/ToolbarController.cxx
index 174e3964692c..b985558a3a0b 100644
--- a/chart2/source/controller/main/ToolbarController.cxx
+++ b/chart2/source/controller/main/ToolbarController.cxx
@@ -15,7 +15,7 @@
 #include <cppuhelper/supportsservice.hxx>
 #include <sal/log.hxx>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 namespace chart {
 
diff --git a/chart2/source/controller/main/UndoActions.cxx 
b/chart2/source/controller/main/UndoActions.cxx
index 301bef28279c..62ac3a90bc77 100644
--- a/chart2/source/controller/main/UndoActions.cxx
+++ b/chart2/source/controller/main/UndoActions.cxx
@@ -28,9 +28,7 @@
 
 using namespace ::com::sun::star;
 
-namespace chart
-{
-namespace impl
+namespace chart::impl
 {
     using ::com::sun::star::uno::Reference;
     using ::com::sun::star::frame::XModel;
@@ -120,7 +118,6 @@ void SAL_CALL ShapeUndoElement::disposing()
 {
 }
 
-} // namespace impl
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/Chart2PanelFactory.cxx 
b/chart2/source/controller/sidebar/Chart2PanelFactory.cxx
index a4235233f1bb..3ae73588075c 100644
--- a/chart2/source/controller/sidebar/Chart2PanelFactory.cxx
+++ b/chart2/source/controller/sidebar/Chart2PanelFactory.cxx
@@ -38,7 +38,7 @@
 
 using namespace css::uno;
 
-namespace chart { namespace sidebar {
+namespace chart::sidebar {
 
 ChartPanelFactory::ChartPanelFactory()
     : PanelFactoryInterfaceBase(m_aMutex)
@@ -143,7 +143,7 @@ css::uno::Sequence<OUString> 
ChartPanelFactory::getSupportedServiceNames()
     return { "com.sun.star.ui.UIElementFactory" };
 }
 
-} } // end of namespace chart::sidebar
+} // end of namespace chart::sidebar
 
 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
 
org_libreoffice_comp_chart2_sidebar_ChartPanelFactory(css::uno::XComponentContext*,
 css::uno::Sequence<css::uno::Any> const &)
diff --git a/chart2/source/controller/sidebar/ChartAreaPanel.cxx 
b/chart2/source/controller/sidebar/ChartAreaPanel.cxx
index 1260b36fe397..b2e134dcde88 100644
--- a/chart2/source/controller/sidebar/ChartAreaPanel.cxx
+++ b/chart2/source/controller/sidebar/ChartAreaPanel.cxx
@@ -26,7 +26,7 @@
 
 #include <svx/tbcontrl.hxx>
 
-namespace chart { namespace sidebar {
+namespace chart::sidebar {
 
 namespace {
 
@@ -525,6 +525,6 @@ void ChartAreaPanel::updateModel(
 }
 
 
-} }
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/ChartAxisPanel.cxx 
b/chart2/source/controller/sidebar/ChartAxisPanel.cxx
index a6fd71c96d44..2c08410847e0 100644
--- a/chart2/source/controller/sidebar/ChartAxisPanel.cxx
+++ b/chart2/source/controller/sidebar/ChartAxisPanel.cxx
@@ -30,7 +30,7 @@
 using namespace css;
 using namespace css::uno;
 
-namespace chart { namespace sidebar {
+namespace chart::sidebar {
 
 namespace {
 
@@ -372,6 +372,6 @@ IMPL_LINK(ChartAxisPanel, TextRotationHdl, 
weld::MetricSpinButton&, rMetricField
     setAxisRotation(mxModel, aCID, nVal);
 }
 
-}} // end of namespace ::chart::sidebar
+} // end of namespace ::chart::sidebar
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/ChartColorWrapper.cxx 
b/chart2/source/controller/sidebar/ChartColorWrapper.cxx
index 5b0654b2d86b..189b55059492 100644
--- a/chart2/source/controller/sidebar/ChartColorWrapper.cxx
+++ b/chart2/source/controller/sidebar/ChartColorWrapper.cxx
@@ -16,7 +16,7 @@
 
 #include <svx/tbcontrl.hxx>
 
-namespace chart { namespace sidebar {
+namespace chart::sidebar {
 
 namespace {
 
@@ -104,6 +104,6 @@ void ChartColorWrapper::updateData()
     mpControl->statusChanged(aEvent);
 }
 
-} }
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/ChartElementsPanel.cxx 
b/chart2/source/controller/sidebar/ChartElementsPanel.cxx
index bb7835cb71bd..f60d9eeb398c 100644
--- a/chart2/source/controller/sidebar/ChartElementsPanel.cxx
+++ b/chart2/source/controller/sidebar/ChartElementsPanel.cxx
@@ -38,7 +38,7 @@
 using namespace css;
 using namespace css::uno;
 
-namespace chart { namespace sidebar {
+namespace chart::sidebar {
 
 namespace {
 
@@ -588,6 +588,6 @@ void 
ChartElementsPanel::setTitleVisible(TitleHelper::eTitleType eTitle, bool bV
     }
 }
 
-}} // end of namespace ::chart::sidebar
+} // end of namespace ::chart::sidebar
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/ChartErrorBarPanel.cxx 
b/chart2/source/controller/sidebar/ChartErrorBarPanel.cxx
index eb9f622d2012..58a024bbe90d 100644
--- a/chart2/source/controller/sidebar/ChartErrorBarPanel.cxx
+++ b/chart2/source/controller/sidebar/ChartErrorBarPanel.cxx
@@ -28,7 +28,7 @@
 using namespace css;
 using namespace css::uno;
 
-namespace chart { namespace sidebar {
+namespace chart::sidebar {
 
 namespace {
 
@@ -419,6 +419,6 @@ IMPL_LINK(ChartErrorBarPanel, NumericFieldHdl, 
weld::SpinButton&, rMetricField,
         setValue(mxModel, aCID, nVal, ErrorBarDirection::NEGATIVE);
 }
 
-}} // end of namespace ::chart::sidebar
+} // end of namespace ::chart::sidebar
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/ChartLinePanel.cxx 
b/chart2/source/controller/sidebar/ChartLinePanel.cxx
index b31c6362e234..2e410084466d 100644
--- a/chart2/source/controller/sidebar/ChartLinePanel.cxx
+++ b/chart2/source/controller/sidebar/ChartLinePanel.cxx
@@ -27,7 +27,7 @@
 #include <com/sun/star/util/XModifyBroadcaster.hpp>
 #include <com/sun/star/chart2/XDiagram.hpp>
 
-namespace chart { namespace sidebar {
+namespace chart::sidebar {
 
 namespace {
 
@@ -324,6 +324,6 @@ void ChartLinePanel::setLineWidth(const XLineWidthItem& 
rItem)
     xPropSet->setPropertyValue("LineWidth", css::uno::Any(rItem.GetValue()));
 }
 
-} }
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/ChartSeriesPanel.cxx 
b/chart2/source/controller/sidebar/ChartSeriesPanel.cxx
index 33f0e1663585..e4dbdebdb2d2 100644
--- a/chart2/source/controller/sidebar/ChartSeriesPanel.cxx
+++ b/chart2/source/controller/sidebar/ChartSeriesPanel.cxx
@@ -37,7 +37,7 @@
 using namespace css;
 using namespace css::uno;
 
-namespace chart { namespace sidebar {
+namespace chart::sidebar {
 
 namespace {
 
@@ -465,6 +465,6 @@ IMPL_LINK_NOARG(ChartSeriesPanel, ListBoxHdl, 
weld::ComboBox&, void)
     setDataLabelPlacement(mxModel, aCID, nPos);
 }
 
-}} // end of namespace ::chart::sidebar
+} // end of namespace ::chart::sidebar
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/ChartSidebarModifyListener.cxx 
b/chart2/source/controller/sidebar/ChartSidebarModifyListener.cxx
index 0fa0b793b5b6..5cc6b5beac99 100644
--- a/chart2/source/controller/sidebar/ChartSidebarModifyListener.cxx
+++ b/chart2/source/controller/sidebar/ChartSidebarModifyListener.cxx
@@ -9,8 +9,7 @@
 
 #include "ChartSidebarModifyListener.hxx"
 
-namespace chart {
-namespace sidebar {
+namespace chart::sidebar {
 
 ChartSidebarModifyListenerParent::~ChartSidebarModifyListenerParent()
 {
@@ -40,6 +39,6 @@ void ChartSidebarModifyListener::disposing(const 
css::lang::EventObject& /*rEven
     mpParent = nullptr;
 }
 
-} }
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/ChartSidebarSelectionListener.cxx 
b/chart2/source/controller/sidebar/ChartSidebarSelectionListener.cxx
index e7d74c656a55..0c8018eb09c3 100644
--- a/chart2/source/controller/sidebar/ChartSidebarSelectionListener.cxx
+++ b/chart2/source/controller/sidebar/ChartSidebarSelectionListener.cxx
@@ -14,8 +14,7 @@
 
 #include <ObjectIdentifier.hxx>
 
-namespace chart {
-namespace sidebar {
+namespace chart::sidebar {
 
 ChartSidebarSelectionListenerParent::~ChartSidebarSelectionListenerParent()
 {
@@ -80,6 +79,6 @@ void ChartSidebarSelectionListener::setAcceptedTypes(const 
std::vector<ObjectTyp
     maTypes = aTypes;
 }
 
-} }
+}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/controller/sidebar/ChartTypePanel.cxx 
b/chart2/source/controller/sidebar/ChartTypePanel.cxx
index 5042fd184b34..846dbed13570 100644
--- a/chart2/source/controller/sidebar/ChartTypePanel.cxx
+++ b/chart2/source/controller/sidebar/ChartTypePanel.cxx
@@ -38,9 +38,7 @@
 using namespace css;
 using namespace css::uno;
 
-namespace chart
-{
-namespace sidebar
+namespace chart::sidebar
 {
 ChartTypePanel::ChartTypePanel(vcl::Window* pParent,
                                const css::uno::Reference<css::frame::XFrame>& 
rxFrame,
@@ -436,7 +434,6 @@ void ChartTypePanel::selectMainType()
         m_pCurrentMainType->fillExtraControls(m_xChartModel, xTemplateProps);
     }
 }
-}
 } // end of namespace ::chart::sidebar
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/model/main/CartesianCoordinateSystem.cxx 
b/chart2/source/model/main/CartesianCoordinateSystem.cxx
index 2549720ed0d8..288749d8540e 100644
--- a/chart2/source/model/main/CartesianCoordinateSystem.cxx
+++ b/chart2/source/model/main/CartesianCoordinateSystem.cxx
@@ -26,7 +26,7 @@ using namespace ::com::sun::star;
 using ::com::sun::star::uno::Reference;
 using ::com::sun::star::uno::Sequence;
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 namespace
 {
diff --git a/chart2/source/model/main/DataSeries.cxx 
b/chart2/source/model/main/DataSeries.cxx
index 26226172bf43..5c0ded40cda7 100644
--- a/chart2/source/model/main/DataSeries.cxx
+++ b/chart2/source/model/main/DataSeries.cxx
@@ -34,7 +34,7 @@
 
 #include <algorithm>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/model/main/FormattedString.cxx 
b/chart2/source/model/main/FormattedString.cxx
index 7ace8d2f4e3c..0d6e733a2c31 100644
--- a/chart2/source/model/main/FormattedString.cxx
+++ b/chart2/source/model/main/FormattedString.cxx
@@ -25,7 +25,7 @@
 #include <cppuhelper/supportsservice.hxx>
 #include <tools/diagnose_ex.h>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/model/main/GridProperties.cxx 
b/chart2/source/model/main/GridProperties.cxx
index a7fb5be85f6d..44d3fffd8c67 100644
--- a/chart2/source/model/main/GridProperties.cxx
+++ b/chart2/source/model/main/GridProperties.cxx
@@ -27,8 +27,8 @@
 #include <cppuhelper/supportsservice.hxx>
 #include <tools/diagnose_ex.h>
 
-namespace com { namespace sun { namespace star { namespace beans { class 
XPropertySetInfo; } } } }
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::beans { class XPropertySetInfo; }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/model/main/Legend.cxx 
b/chart2/source/model/main/Legend.cxx
index 654ccc45cbcd..6381d232e31d 100644
--- a/chart2/source/model/main/Legend.cxx
+++ b/chart2/source/model/main/Legend.cxx
@@ -35,7 +35,7 @@
 
 #include <algorithm>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::beans::PropertyAttribute;
diff --git a/chart2/source/model/main/PageBackground.cxx 
b/chart2/source/model/main/PageBackground.cxx
index 2dec38051d46..5dda4cb5a7b4 100644
--- a/chart2/source/model/main/PageBackground.cxx
+++ b/chart2/source/model/main/PageBackground.cxx
@@ -31,7 +31,7 @@
 #include <vector>
 #include <algorithm>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/model/main/PolarCoordinateSystem.cxx 
b/chart2/source/model/main/PolarCoordinateSystem.cxx
index 151f31036e13..f6780bbb54a3 100644
--- a/chart2/source/model/main/PolarCoordinateSystem.cxx
+++ b/chart2/source/model/main/PolarCoordinateSystem.cxx
@@ -21,7 +21,7 @@
 #include <servicenames_coosystems.hxx>
 #include <cppuhelper/supportsservice.hxx>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/model/main/StockBar.cxx 
b/chart2/source/model/main/StockBar.cxx
index e9ac5e4a529f..22e082ad06b3 100644
--- a/chart2/source/model/main/StockBar.cxx
+++ b/chart2/source/model/main/StockBar.cxx
@@ -28,7 +28,7 @@
 
 #include <algorithm>
 
-namespace com { namespace sun { namespace star { namespace beans { class 
XPropertySetInfo; } } } }
+namespace com::sun::star::beans { class XPropertySetInfo; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/model/main/Title.cxx 
b/chart2/source/model/main/Title.cxx
index 256199a99b5d..a42374ce5f51 100644
--- a/chart2/source/model/main/Title.cxx
+++ b/chart2/source/model/main/Title.cxx
@@ -35,7 +35,7 @@
 #include <vector>
 #include <algorithm>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::beans::PropertyAttribute;
diff --git a/chart2/source/model/template/AreaChartType.cxx 
b/chart2/source/model/template/AreaChartType.cxx
index 947c885cee84..840bdba036d7 100644
--- a/chart2/source/model/template/AreaChartType.cxx
+++ b/chart2/source/model/template/AreaChartType.cxx
@@ -21,7 +21,7 @@
 #include <servicenames_charttypes.hxx>
 #include <cppuhelper/supportsservice.hxx>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/model/template/BarChartType.cxx 
b/chart2/source/model/template/BarChartType.cxx
index 4c5511c100f3..87675e3f140d 100644
--- a/chart2/source/model/template/BarChartType.cxx
+++ b/chart2/source/model/template/BarChartType.cxx
@@ -21,7 +21,7 @@
 #include <servicenames_charttypes.hxx>
 #include <cppuhelper/supportsservice.hxx>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/model/template/CandleStickChartType.cxx 
b/chart2/source/model/template/CandleStickChartType.cxx
index 606d51a6c035..af0c1f04f52b 100644
--- a/chart2/source/model/template/CandleStickChartType.cxx
+++ b/chart2/source/model/template/CandleStickChartType.cxx
@@ -26,7 +26,7 @@
 #include <cppuhelper/supportsservice.hxx>
 #include <tools/diagnose_ex.h>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/model/template/ColumnChartType.cxx 
b/chart2/source/model/template/ColumnChartType.cxx
index 4cf39ed145de..4c95b1c1b0b8 100644
--- a/chart2/source/model/template/ColumnChartType.cxx
+++ b/chart2/source/model/template/ColumnChartType.cxx
@@ -23,7 +23,7 @@
 #include <com/sun/star/beans/PropertyAttribute.hpp>
 #include <cppuhelper/supportsservice.hxx>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 using ::com::sun::star::uno::Sequence;
diff --git a/chart2/source/model/template/FilledNetChartType.cxx 
b/chart2/source/model/template/FilledNetChartType.cxx
index 19e49a2365d0..3179317daee5 100644
--- a/chart2/source/model/template/FilledNetChartType.cxx
+++ b/chart2/source/model/template/FilledNetChartType.cxx
@@ -21,7 +21,7 @@
 #include <servicenames_charttypes.hxx>
 #include <cppuhelper/supportsservice.hxx>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::chart2;
diff --git a/chart2/source/model/template/LineChartType.cxx 
b/chart2/source/model/template/LineChartType.cxx
index 538bf1cb5cf1..64b2fe9c146f 100644
--- a/chart2/source/model/template/LineChartType.cxx
+++ b/chart2/source/model/template/LineChartType.cxx
@@ -26,7 +26,7 @@
 #include <com/sun/star/beans/PropertyAttribute.hpp>
 #include <com/sun/star/chart2/CurveStyle.hpp>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/tools/BaseGFXHelper.cxx 
b/chart2/source/tools/BaseGFXHelper.cxx
index 4bdeb26b780c..8db9b79b7fd0 100644
--- a/chart2/source/tools/BaseGFXHelper.cxx
+++ b/chart2/source/tools/BaseGFXHelper.cxx
@@ -25,9 +25,7 @@ using namespace ::com::sun::star;
 using namespace ::com::sun::star::drawing;
 using namespace ::basegfx;
 
-namespace chart
-{
-namespace BaseGFXHelper
+namespace chart::BaseGFXHelper
 {
 
 ::basegfx::B3DRange getBoundVolume( const drawing::PolyPolygonShape3D& 
rPolyPoly )
@@ -195,7 +193,6 @@ void ReduceToRotationMatrix( ::basegfx::B3DHomMatrix & 
rB3DMatrix )
     rB3DMatrix = aRotationMatrix;
 }
 
-} //  namespace BaseGFXHelper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/tools/DataSeriesHelper.cxx 
b/chart2/source/tools/DataSeriesHelper.cxx
index 0edb82fd5dc0..4b4c954b5e0e 100644
--- a/chart2/source/tools/DataSeriesHelper.cxx
+++ b/chart2/source/tools/DataSeriesHelper.cxx
@@ -184,10 +184,7 @@ void lcl_insertOrDeleteDataLabelsToSeriesAndAllPoints( 
const Reference< chart2::
 
 } // anonymous namespace
 
-namespace chart
-{
-
-namespace DataSeriesHelper
+namespace chart::DataSeriesHelper
 {
 
 OUString getRole( const uno::Reference< chart2::data::XLabeledDataSequence >& 
xLabeledDataSequence )
@@ -844,7 +841,6 @@ void deleteDataLabelsFromPoint( const Reference< 
beans::XPropertySet >& xPointPr
     }
 }
 
-} //  namespace DataSeriesHelper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/tools/DataSource.cxx 
b/chart2/source/tools/DataSource.cxx
index 284427cd358f..bdcac98ef1e6 100644
--- a/chart2/source/tools/DataSource.cxx
+++ b/chart2/source/tools/DataSource.cxx
@@ -20,7 +20,7 @@
 #include <DataSource.hxx>
 #include <cppuhelper/supportsservice.hxx>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using ::com::sun::star::uno::Sequence;
 using ::com::sun::star::uno::Reference;
diff --git a/chart2/source/tools/ImplOPropertySet.cxx 
b/chart2/source/tools/ImplOPropertySet.cxx
index 2eb03d99e52a..fa52b5d03ddc 100644
--- a/chart2/source/tools/ImplOPropertySet.cxx
+++ b/chart2/source/tools/ImplOPropertySet.cxx
@@ -84,9 +84,7 @@ struct lcl_replaceInterfacePropertiesByClones
 
 } //  anonymous namespace
 
-namespace property
-{
-namespace impl
+namespace property::impl
 {
 
 ImplOPropertySet::ImplOPropertySet()
@@ -175,7 +173,6 @@ bool ImplOPropertySet::SetStyle( const Reference< 
style::XStyle > & xStyle )
     return true;
 }
 
-} //  namespace impl
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/tools/InternalDataProvider.cxx 
b/chart2/source/tools/InternalDataProvider.cxx
index eec8280425b4..9a9d2db8188a 100644
--- a/chart2/source/tools/InternalDataProvider.cxx
+++ b/chart2/source/tools/InternalDataProvider.cxx
@@ -43,7 +43,7 @@
 #include <vector>
 #include <algorithm>
 
-namespace com { namespace sun { namespace star { namespace chart2 { class 
XChartDocument; } } } }
+namespace com::sun::star::chart2 { class XChartDocument; }
 
 using namespace ::com::sun::star;
 using namespace ::std;
diff --git a/chart2/source/tools/LabeledDataSequence.cxx 
b/chart2/source/tools/LabeledDataSequence.cxx
index bd945715db12..c3a896b22ff6 100644
--- a/chart2/source/tools/LabeledDataSequence.cxx
+++ b/chart2/source/tools/LabeledDataSequence.cxx
@@ -22,7 +22,7 @@
 #include <cppuhelper/supportsservice.hxx>
 #include <tools/diagnose_ex.h>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/tools/ModifyListenerHelper.cxx 
b/chart2/source/tools/ModifyListenerHelper.cxx
index b921cd167109..4eb88a01cbe9 100644
--- a/chart2/source/tools/ModifyListenerHelper.cxx
+++ b/chart2/source/tools/ModifyListenerHelper.cxx
@@ -78,9 +78,7 @@ private:
 
 } //  anonymous namespace
 
-namespace chart
-{
-namespace ModifyListenerHelper
+namespace chart::ModifyListenerHelper
 {
 
 uno::Reference< util::XModifyListener > createModifyEventForwarder()
@@ -180,7 +178,6 @@ void SAL_CALL ModifyEventForwarder::disposing()
     DisposeAndClear( this );
 }
 
-} //  namespace ModifyListenerHelper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/tools/ObjectIdentifier.cxx 
b/chart2/source/tools/ObjectIdentifier.cxx
index 03f261a860db..7b47967f1f9a 100644
--- a/chart2/source/tools/ObjectIdentifier.cxx
+++ b/chart2/source/tools/ObjectIdentifier.cxx
@@ -42,7 +42,7 @@
 #include <rtl/ustrbuf.hxx>
 #include <tools/diagnose_ex.h>
 
-namespace com { namespace sun { namespace star { namespace drawing { class 
XShape; } } } }
+namespace com::sun::star::drawing { class XShape; }
 
 namespace chart
 {
diff --git a/chart2/source/tools/PropertyHelper.cxx 
b/chart2/source/tools/PropertyHelper.cxx
index b874f53027b3..fb242cd567c0 100644
--- a/chart2/source/tools/PropertyHelper.cxx
+++ b/chart2/source/tools/PropertyHelper.cxx
@@ -172,9 +172,7 @@ OUString lcl_addNamedPropertyUniqueNameToTable(
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace PropertyHelper
+namespace chart::PropertyHelper
 {
 
 OUString addLineDashUniqueNameToTable(
@@ -294,8 +292,6 @@ void setEmptyPropertyValueDefault( tPropertyValueMap & 
rOutMap, tPropertyValueMa
     setPropertyValueDefault( rOutMap, key, uno::Any());
 }
 
-} // namespace PropertyHelper
-
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/tools/RegressionCurveModel.cxx 
b/chart2/source/tools/RegressionCurveModel.cxx
index 6afde52ea193..f40b9389e4b5 100644
--- a/chart2/source/tools/RegressionCurveModel.cxx
+++ b/chart2/source/tools/RegressionCurveModel.cxx
@@ -28,7 +28,7 @@
 #include <com/sun/star/beans/PropertyAttribute.hpp>
 #include <tools/diagnose_ex.h>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/tools/RegressionEquation.cxx 
b/chart2/source/tools/RegressionEquation.cxx
index 72da779cca35..1c46dc69f054 100644
--- a/chart2/source/tools/RegressionEquation.cxx
+++ b/chart2/source/tools/RegressionEquation.cxx
@@ -37,7 +37,7 @@
 
 #include <algorithm>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/tools/Scaling.cxx b/chart2/source/tools/Scaling.cxx
index ef2e363c9737..e387a3047442 100644
--- a/chart2/source/tools/Scaling.cxx
+++ b/chart2/source/tools/Scaling.cxx
@@ -22,7 +22,7 @@
 #include <com/sun/star/uno/RuntimeException.hpp>
 #include <cppuhelper/supportsservice.hxx>
 
-namespace com { namespace sun { namespace star { namespace uno { class 
XComponentContext; } } } }
+namespace com::sun::star::uno { class XComponentContext; }
 
 namespace
 {
diff --git a/chart2/source/tools/WrappedDefaultProperty.cxx 
b/chart2/source/tools/WrappedDefaultProperty.cxx
index 576458a3fd36..6638654e76c1 100644
--- a/chart2/source/tools/WrappedDefaultProperty.cxx
+++ b/chart2/source/tools/WrappedDefaultProperty.cxx
@@ -22,7 +22,7 @@
 
 #include <com/sun/star/beans/XPropertySet.hpp>
 
-namespace com { namespace sun { namespace star { namespace beans { class 
XPropertyState; } } } }
+namespace com::sun::star::beans { class XPropertyState; }
 
 using namespace ::com::sun::star;
 
diff --git a/chart2/source/tools/XMLRangeHelper.cxx 
b/chart2/source/tools/XMLRangeHelper.cxx
index 5a23b3790458..6d9b5a2649e0 100644
--- a/chart2/source/tools/XMLRangeHelper.cxx
+++ b/chart2/source/tools/XMLRangeHelper.cxx
@@ -283,9 +283,7 @@ bool lcl_getCellRangeAddressFromXMLString(
 
 } // anonymous namespace
 
-namespace chart
-{
-namespace XMLRangeHelper
+namespace chart::XMLRangeHelper
 {
 
 CellRange getCellRangeFromXMLString( const OUString & rXMLString )
@@ -389,7 +387,6 @@ OUString getXMLStringFromCellRange( const CellRange & 
rRange )
     return aBuffer.makeStringAndClear();
 }
 
-} //  namespace XMLRangeHelper
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/source/view/main/ChartView.cxx 
b/chart2/source/view/main/ChartView.cxx
index 187b4abda18a..530ea060f390 100644
--- a/chart2/source/view/main/ChartView.cxx
+++ b/chart2/source/view/main/ChartView.cxx
@@ -102,7 +102,7 @@
 #include <tools/stream.hxx>
 
 #include <memory>
-namespace com { namespace sun { namespace star { namespace chart2 { class 
XChartDocument; } } } }
+namespace com::sun::star::chart2 { class XChartDocument; }
 
 namespace chart {
 
diff --git a/chart2/source/view/main/DrawModelWrapper.cxx 
b/chart2/source/view/main/DrawModelWrapper.cxx
index dcbee5457dce..6403e0eea192 100644
--- a/chart2/source/view/main/DrawModelWrapper.cxx
+++ b/chart2/source/view/main/DrawModelWrapper.cxx
@@ -36,8 +36,8 @@
 
 #include <com/sun/star/container/XChild.hpp>
 
-namespace com { namespace sun { namespace star { namespace linguistic2 { class 
XHyphenator; } } } }
-namespace com { namespace sun { namespace star { namespace linguistic2 { class 
XSpellChecker1; } } } }
+namespace com::sun::star::linguistic2 { class XHyphenator; }
+namespace com::sun::star::linguistic2 { class XSpellChecker1; }
 
 using namespace ::com::sun::star;
 
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