tdf#125444 Percentage as custom chart label

Support importing ooxml charts with a field of type "PERCENTAGE" as
custom label.

Change-Id: Ie8931f77e3b6199d98635422d11d776e675f6e5c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/86067
Tested-by: Jenkins
Reviewed-by: Tamás Bunth <btomi96@gmail.com>

chart2/source/view/charttypes/VSeriesPlotter.cxx

@@ -528,6 +528,11 @@ uno::Reference< drawing::XShape > VSeriesPlotter::createDataLabel( const uno::Re
                         aTextList[i] = DataSeriesHelper::getDataSeriesLabel( xSeries, aRole );
                         break;
                     }
+                    case DataPointCustomLabelFieldType_PERCENTAGE:
+                    {
+                        aTextList[i] = getLabelTextForValue( rDataSeries, nPointIndex, fValue, true );
+                        break;
+                    }
                     case DataPointCustomLabelFieldType_CELLREF:
                     {
                         // TODO: for now doesn't show placeholder

offapi/com/sun/star/chart2/DataPointCustomLabelFieldType.idl

@@ -23,11 +23,12 @@ enum DataPointCustomLabelFieldType
     SERIESNAME,
     CATEGORYNAME,
     CELLREF,
-    NEWLINE
+    NEWLINE,
+    PERCENTAGE
 };
 
 }; }; }; };
 
 #endif
 
-/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */

oox/source/drawingml/chart/seriesconverter.cxx

@@ -245,6 +245,8 @@ DataPointCustomLabelFieldType lcl_ConvertFieldNameToFieldEnum( const OUString& r
         return DataPointCustomLabelFieldType::DataPointCustomLabelFieldType_CATEGORYNAME;
     else if (rField == "CELLREF")
         return DataPointCustomLabelFieldType::DataPointCustomLabelFieldType_CELLREF;
+    else if (rField == "PERCENTAGE")
+        return DataPointCustomLabelFieldType::DataPointCustomLabelFieldType_PERCENTAGE;
     else
         return DataPointCustomLabelFieldType::DataPointCustomLabelFieldType_TEXT;
 }