tdf#143942: oox: import/export labels from <c15:datalabelsRange>

When <c15:showDataLabelsRange> boolean flag is present, the imported
label texts are added as the first text field in oox data label model.
The cell-range associated is also preserved. The export part preserves
the how labels were store originally in <c15:datalabelsRange>.

However in order to make the custom labels reflect the contents of the
cells in the associated cell-range, more work needs to be done. For this
the labels present in <c15:datalabelsRange> needs to be made available
as a data-sequence with a new "role" like "point-labels" in
XInternalDataProvider implementation and and make the label renderer
read this data source rather than consulting the custom label fields
property which is static after import.

Change-Id: Ibc7045fa5ea209d463680c96efb49a06662d2500
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/121313
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

3 files changed, 48 insertions, 1 deletions

diff --git a/chart2/source/model/main/FormattedString.cxx b/chart2/source/model/main/FormattedString.cxx
index 5433f3683d78..782729294789 100644
--- a/chart2/source/model/main/FormattedString.cxx
+++ b/chart2/source/model/main/FormattedString.cxx
@@ -98,6 +98,7 @@ namespace chart
 FormattedString::FormattedString() :
         ::property::OPropertySet( m_aMutex ),
     m_aType(chart2::DataPointCustomLabelFieldType::DataPointCustomLabelFieldType_TEXT),
+    m_bDataLabelsRange(false),
     m_xModifyEventForwarder( ModifyListenerHelper::createModifyEventForwarder())
 {}
 
@@ -107,6 +108,7 @@ FormattedString::FormattedString( const FormattedString & rOther ) :
     m_aString( rOther.m_aString ),
     m_aType(rOther.m_aType),
     m_aGuid(rOther.m_aGuid),
+    m_bDataLabelsRange(rOther.m_bDataLabelsRange),
     m_xModifyEventForwarder( ModifyListenerHelper::createModifyEventForwarder())
 {}
 
@@ -172,6 +174,38 @@ void SAL_CALL FormattedString::setGuid( const OUString& guid )
 
 }
 
+sal_Bool SAL_CALL FormattedString::getDataLabelsRange()
+{
+    MutexGuard aGuard( m_aMutex);
+    return m_bDataLabelsRange;
+}
+
+void SAL_CALL FormattedString::setDataLabelsRange( sal_Bool dataLabelsRange )
+{
+    {
+        MutexGuard aGuard( m_aMutex);
+        m_bDataLabelsRange = dataLabelsRange;
+    }
+    //don't keep the mutex locked while calling out
+    fireModifyEvent();
+}
+
+OUString SAL_CALL FormattedString::getCellRange()
+{
+    MutexGuard aGuard( m_aMutex);
+    return m_aCellRange;
+}
+
+void SAL_CALL FormattedString::setCellRange( const OUString& cellRange )
+{
+    {
+        MutexGuard aGuard( m_aMutex);
+        m_aCellRange = cellRange;
+    }
+    //don't keep the mutex locked while calling out
+    fireModifyEvent();
+}
+
 // ____ XModifyBroadcaster ____
 void SAL_CALL FormattedString::addModifyListener( const uno::Reference< util::XModifyListener >& aListener )
 {
diff --git a/chart2/source/model/main/FormattedString.hxx b/chart2/source/model/main/FormattedString.hxx
index a7f9e36bb134..bd7415fb921a 100644
--- a/chart2/source/model/main/FormattedString.hxx
+++ b/chart2/source/model/main/FormattedString.hxx
@@ -87,6 +87,10 @@ private:
         setFieldType( const css::chart2::DataPointCustomLabelFieldType FieldType ) override;
     virtual OUString SAL_CALL getGuid() override;
     void SAL_CALL setGuid( const OUString& guid ) override;
+    virtual sal_Bool SAL_CALL getDataLabelsRange() override;
+    virtual void SAL_CALL setDataLabelsRange( sal_Bool dataLabelsRange ) override;
+    virtual OUString SAL_CALL getCellRange() override;
+    virtual void SAL_CALL setCellRange( const OUString& cellRange ) override;
 
     // ____ OPropertySet ____
     virtual css::uno::Any GetDefaultValue( sal_Int32 nHandle ) const override;
@@ -127,6 +131,8 @@ private:
     // ____ XDataPointCustomLabelField ____
     css::chart2::DataPointCustomLabelFieldType m_aType;
     OUString m_aGuid;
+    OUString m_aCellRange;
+    bool m_bDataLabelsRange;
 
     css::uno::Reference< css::util::XModifyListener > m_xModifyEventForwarder;
 };
diff --git a/chart2/source/view/charttypes/VSeriesPlotter.cxx b/chart2/source/view/charttypes/VSeriesPlotter.cxx
index b0a591d3c065..b5bfc8d871b0 100644
--- a/chart2/source/view/charttypes/VSeriesPlotter.cxx
+++ b/chart2/source/view/charttypes/VSeriesPlotter.cxx
@@ -540,9 +540,16 @@ uno::Reference< drawing::XShape > VSeriesPlotter::createDataLabel( const uno::Re
                         aTextList[i] = getLabelTextForValue(rDataSeries, nPointIndex, fValue, true);
                         break;
                     }
-                    case DataPointCustomLabelFieldType_CELLREF:
                     case DataPointCustomLabelFieldType_CELLRANGE:
                     {
+                        if (aCustomLabels[i]->getDataLabelsRange())
+                            aTextList[i] = aCustomLabels[i]->getString();
+                        else
+                            aTextList[i] = OUString();
+                        break;
+                    }
+                    case DataPointCustomLabelFieldType_CELLREF:
+                    {
                         // TODO: for now doesn't show placeholder
                         aTextList[i] = OUString();
                         break;