NatTable 中的样式在排序/过滤后未更新

Question

我正在从 XML 文件创建 nattable。 在读取 XML 时，所有值都转换为字符串（由于其他应用程序功能）。 虽然表中的所有值都是字符串，但我需要对值应用不同的样式，这些值在 XML 中是数字。 所以我创建了List<List<String>> dataTypes ，它存储原始数据类型。 我阅读了这个列表并应用了样式：

sortedList = new SortedList<>(rowObjectsGlazedList, null);
// wrap the SortedList with the FilterList
filterList = new FilterList<>(sortedList);

bodyDataProvider = new ListDataProvider<TableLine>(filterList, getColumnAccessor(columnCount));
bodyDataLayer = new DataLayer(bodyDataProvider);
System.out.println("BodyLayerstack.java:71: bodyDataLayer = new DataLayer(bodyDataProvider)");

IConfigLabelAccumulator cellLabelAccumulator = new IConfigLabelAccumulator() {
  
  @Override
  public void accumulateConfigLabels(LabelStack configLabels, int columnPosition, int rowPosition) {
    int columnIndex = bodyDataLayer.getColumnIndexByPosition(columnPosition);
    int rowIndex = bodyDataLayer.getRowIndexByPosition(rowPosition);
    if( isRowHeader(columnIndicesForRowHeaders, columnIndex) )
      configLabels.addLabel(NatTableFactory.RowHeaderLabel);
    else
      configLabels.addLabel(values.get(rowIndex).getObjectTypeByColumn(columnIndex));
  }
};
bodyDataLayer.setConfigLabelAccumulator(cellLabelAccumulator);
System.out.println("BodyLayerstack.java: 88: bodyDataLayer.setConfigLabelAccumulator(cellLabelAccumulator) ");

GlazedListsEventLayer<TableLine> glazedListsEventLayer = new GlazedListsEventLayer<>(bodyDataLayer, filterList);

selectionLayer = new SelectionLayer(glazedListsEventLayer, false);
selectionLayer.setSelectionModel(getSelectionModel());
selectionLayer.addConfiguration(getSelectionConfiguration());
setUnderlyingLayer(new ViewportLayer(selectionLayer));

经理：

public class AttributeManager implements EventHandler {
  ..
  private static final String                  EmptyValue          = " ";
  private static final String                  ValueTypeString     = "String";
  private static final String                  ValueTypeNumber     = "Number";
  ...
  private void addToModel(XLSAttributeModel xlsModel) {
  ...
  List<String> values = new ArrayList<String>();
        List<String> valueTypes = new ArrayList<String>();
        // set cells value
        for( XLSCell cell : r.getCells() ) {
          // if cell index exists, add empty value for cells before cell with index
          if( cell.getIndex() != null ) {
            for( int j = colIdx; j < cell.getIndex()-1; j++ ) {
              values.add(EmptyValue);                 
              valueTypes.add(ValueTypeString);                  
            }
            colIdx = cell.getIndex()-1;
          }
          if( cell.getData() != null ) {
            values.add(cell.getData().getDisplayValue());
            valueTypes.add(getValueType(cell.getData().getDataType()));
          } else {
            values.add(EmptyValue);
            valueTypes.add(ValueTypeString);                  
          }
          colIdx++;
        }
        // add empty value for cells in remaining columns
        for( ; colIdx < columnCount; colIdx++ ) {
          values.add(EmptyValue);                 
          valueTypes.add(ValueTypeString);
        }
        Attributes attrs = new Attributes();
        String[] vals = new String[values.size()];
        for( int i = 0; i < values.size(); i++ )
          vals[i] = values.get(i);
        attrs.setValues(vals);
        data.addData(attrs);
        //
        
        
        data.addDataTypes(valueTypes);

和：

public String getObjectTypeByColumn(int columnIndex)
  {
    if (this.dataTypes == null || columnIndex > this.dataTypes.size() - 1)
      return null;

    return this.dataTypes.get(columnIndex);
  }

然后我设置样式：

public static AbstractRegistryConfiguration getNatTableConfiguration()
{
  return new AbstractRegistryConfiguration()
  {

    @Override
    public void configureRegistry(IConfigRegistry configRegistry)
    {
      Style headerCellStyle = new Style();
      headerCellStyle.setAttributeValue(CellStyleAttributes.BACKGROUND_COLOR, GUIHelper.COLOR_WIDGET_BACKGROUND);
      configRegistry.registerConfigAttribute(CellConfigAttributes.CELL_STYLE, headerCellStyle, DisplayMode.NORMAL, NatTableFactory.RowHeaderLabel);

      Style cellAlignStyle = new Style();
      cellAlignStyle.setAttributeValue(CellStyleAttributes.HORIZONTAL_ALIGNMENT, HorizontalAlignmentEnum.RIGHT);
      configRegistry.registerConfigAttribute(CellConfigAttributes.CELL_STYLE, cellAlignStyle, DisplayMode.NORMAL, NatTableFactory.DataTypeNumberLabel);
      //
      System.out.println("NatTableLayerConfigurations.java: 67: NatTableFactory.DataTypeNumberLabel ");
      
      cellAlignStyle = new Style();
      cellAlignStyle.setAttributeValue(CellStyleAttributes.HORIZONTAL_ALIGNMENT, HorizontalAlignmentEnum.LEFT);
      configRegistry.registerConfigAttribute(CellConfigAttributes.CELL_STYLE, cellAlignStyle, DisplayMode.NORMAL, NatTableFactory.DataTypeStringLabel);
      
      Style cellStyle = new Style();
      cellStyle.setAttributeValue(CellStyleAttributes.FONT, ApplicationSizeManager.getDefaultFont(Display.getDefault()));
      cellStyle.setAttributeValue(CellStyleAttributes.BACKGROUND_COLOR, new Color(Display.getDefault(), 255, 255, 255));
      configRegistry.registerConfigAttribute(CellConfigAttributes.CELL_STYLE, cellStyle, DisplayMode.NORMAL);
    }
  };
}

和观点：

...
List<List<String>> dataTypes = data.getDataTypeList();

params.setCellTypes(new String[dataTypes.size()][dataTypes.get(0).size()]);
String[][] cellTypes = params.getCellTypes();
System.out.println("AttributeViewFrame.java:270: String[][] cellTypes = params.getCellTypes(); ");
for( int i = 0; i < dataTypes.size(); i++ ) {
  List<String> types = dataTypes.get(i);
  for( int j = 0; j < types.size() && j < dataTypes.get(0).size(); j++ ) {
    cellTypes[i][j] = types.get(j);
  }
}
...
for( int i = 0; i < cells.length; i++ ) {
  if( hiddenRowsList != null && hiddenRowsList.contains(i) )
    continue;
  List<Object> objectList = new ArrayList<Object>();
  List<String> dataTypeList = new ArrayList<String>();
  String partNo = "";
  for( int j = 0; j < cells[i].length; j++ ) {
    if( hiddenColsList == null || !hiddenColsList.contains(j) ) {
      objectList.add(cells[i][j]); 
      dataTypeList.add(cellTypes[i][j]);
      //
      System.out.println("AttributeViewFrame.java:394: dataTypeList.add: cellTypes[i][j]: "+cellTypes[i][j]);
      if (containsPartNumer)
      {
        if (columnHeaders != null && columnHeaders[0][j] instanceof String && ((String) columnHeaders[0][j]).equalsIgnoreCase(PartNo))
          partNo = (String) cells[i][j];
        else if (cells != null && cells[0][j] instanceof String && ((String) cells[0][j]).equalsIgnoreCase(PartNo))
          partNo = (String) cells[i][j];
      }
    }
  }
  
  TableLine tLine = new TableLine(i, objectList, dataTypeList, params.getHighlighPaths(i), partNo);
  tLines.add(tLine);
}
return tLines;

问题是，排序（或过滤）后样式不会更新。 如果在某些 position 是排序前的数字，则单元格在排序后也被格式化为数字。

Answer 1

我明白了，我的问题是： configLabels.addLabel(values.get(rowIndex).getObjectTypeByColumn(columnIndex));

排序时没有更新那里的值。 我将这一行替换为：

IDataProvider addLabelsDataProvider = bodyDataLayer.getDataProvider();
      
@SuppressWarnings("unchecked")
ListDataProvider<TableLine> addLabelsListDataProvider = (ListDataProvider<TableLine>) addLabelsDataProvider;
List<TableLine> myList = addLabelsListDataProvider.getList();
configLabels.addLabel(myList.get(rowIndex).getObjectTypeByColumn(columnIndex).toString());