Cfrgtkky

A NatTable requires to set cells of column 3 with BACKGROUND_COLOR = GUIHelper.COLOR_GREEN when the property of the Material is of type "Composite".

Material list is the source of data (the DataProvider)

NatTable is configured with StackingTableConfiguration.class

NatTable uses a custom label to set the cell style by means of StackingTableLabelAccumulator.class

As suggested in https://www.eclipse.org/forums/index.php/t/781508/
I have set the cellLabelAccumulator body data layer.

I used AggregateConfigLabelAccumulator since I have the custom label accumulator (AggregateConfigLabelAccumulator) and a columnLabelAccumulator.

When the Material is of type Composite, the label is added to the config labels, but the green color is nor render.

public class StackingTable {



    private NatTable natTable;

    public static IDataProvider bodyDataProvider;



    public static String COLUMN_ONE_LABEL = "ColumnOneLabel";

    public static String COLUMN_TWO_LABEL = "ColumnTwoLabel";

    public static String COLUMN_THREE_LABEL = "ColumnThreeLabel";



    public static String TEST = "Composite_Label";



    public StackingTable(Composite parent, 

    EventList<AncolabStackingLayer> ancolabStackingData, 

    SelectionLayer stackingTableSelectionLayer ) {



        bodyDataProvider = new ListDataProvider<>(ancolabStackingData, colAccessor);

        final DataLayer bodyDataLayer = new DataLayer(bodyDataProvider);

        final ColumnOverrideLabelAccumulator columnLabelAccumulator =

               new ColumnOverrideLabelAccumulator(bodyDataLayer);

        columnLabelAccumulator.registerColumnOverrides(0, COLUMN_ONE_LABEL);

        columnLabelAccumulator.registerColumnOverrides(1, COLUMN_TWO_LABEL);

        columnLabelAccumulator.registerColumnOverrides(2, COLUMN_THREE_LABEL);

        //Create the gridLayer 

        natTable = new NatTable(parent,  gridLayer, false);



        AggregateConfigLabelAccumulator aggregateConfigLabelAccumulator =

            new AggregateConfigLabelAccumulator();

        aggregateConfigLabelAccumulator.add(columnLabelAccumulator);

        aggregateConfigLabelAccumulator.add(

            new StackingTableLabelAccumulator(bodyDataProvider));



        bodyDataLayer.setConfigLabelAccumulator(aggregateConfigLabelAccumulator);



        bodyDataLayer.addConfiguration(

            new DefaultNatTableStyleConfiguration());

        bodyDataLayer.addConfiguration(

            new StackingTableConfiguration(bodyDataProvider));

        bodyDataLayer.addConfiguration(new DefaultEditConfiguration());

        bodyDataLayer.addConfiguration(new DefaultEditBindings());   



        natTable.configure();

    }

The configuration registry:

public class StackingTableConfiguration extends AbstractRegistryConfiguration {

    private IDataProvider bodyDataProvider;

    public StackingTableConfiguration(IDataProvider dp) {

    this.bodyDataProvider = dp;

    @Override

    public void configureRegistry(IConfigRegistry configRegistry) {

        //...some configutarion attributes for other columns  

        Style cellStyle2 = new Style();

        cellStyle2.setAttributeValue(

            CellStyleAttributes.BACKGROUND_COLOR,

            GUIHelper.COLOR_GREEN);



    configRegistry.registerConfigAttribute(

            CellConfigAttributes.CELL_STYLE, cellStyle2,

            DisplayMode.NORMAL, StackingTable.TEST);

    }

}

The custom label accumulator:

//Add a label to cells in column 2 when the material of the row is of type = "Composite"

public class StackingTableLabelAccumulator extends AbstractOverrider {

    IDataProvider dataProvider;

    public StackingTableLabelAccumulator(IDataProvider dataProvider){

        this.dataProvider = dataProvider;

    }

    @Override

    public void accumulateConfigLabels(LabelStack configLabels, 

                                      int columnPosition, int rowPosition) {

        Material mat = 

            (Material) ((IRowDataProvider) dataProvider).getRowObject(rowPosition);

        if(mat.getType().equals("Composite")&& columnPosition == 2) {

            configLabels.addLabel(StackingTable.TEST);

            //When a material of type composite, 

            //the code reachs this point, i.e. the label is added to the labelStack

            System.out.println(configLabels.getLabels().get(1).toString() +

                            "t" + columnPosition + "t" + rowPosition);

       }

    }

}