Java 侦听器未听到NatTable单元格的单击

以下是SSCCE：

创建1x1 NatTable，并将标签按钮应用于单个 内含细胞 添加一个ButtonCellPainter，使单元格看起来像一个按钮 尝试添加一个不起作用的单击侦听器，否则我会看到您在stderr中 我感到困惑的是混淆的开始和结束之间的注释行-剩下的是建立示例的东西。我试着按照提供的“将单元格渲染为链接”和“按钮”示例进行操作，但显然有些地方我弄错了

NatTable的性能和美学真的令人惊叹；很高兴有人在这里指出我的错误，这样我就可以将其添加到我的项目中：-

import org.eclipse.nebula.widgets.nattable.*;
import org.eclipse.nebula.widgets.nattable.config.*;
import org.eclipse.nebula.widgets.nattable.data.*;
import org.eclipse.nebula.widgets.nattable.grid.layer.*;
import org.eclipse.nebula.widgets.nattable.hideshow.*;
import org.eclipse.nebula.widgets.nattable.layer.*;
import org.eclipse.nebula.widgets.nattable.layer.cell.*;
import org.eclipse.nebula.widgets.nattable.painter.cell.*;
import org.eclipse.nebula.widgets.nattable.selection.*;
import org.eclipse.nebula.widgets.nattable.ui.action.*;
import org.eclipse.nebula.widgets.nattable.ui.binding.*;
import org.eclipse.nebula.widgets.nattable.ui.matcher.*;
import org.eclipse.nebula.widgets.nattable.viewport.*;
import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

public class NatTableTest extends Dialog implements IDataProvider, IConfigLabelAccumulator {

    @Override protected Control createDialogArea(Composite parent) {
        Composite toReturn = (Composite) super.createDialogArea(parent);
        toReturn.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        IDataProvider dataProvider = this; 
        DataLayer bodyDataLayer = new DataLayer(dataProvider);
        bodyDataLayer.setConfigLabelAccumulator(this);
        RowHideShowLayer rowHideShowLayer = new RowHideShowLayer(bodyDataLayer);
        SelectionLayer selectionLayer = new SelectionLayer(rowHideShowLayer);
        ViewportLayer viewportLayer = new ViewportLayer(selectionLayer);
        DataLayer rowDataLayer = new DefaultRowHeaderDataLayer(dataProvider);
        ILayer rowLayer = new RowHeaderLayer(rowDataLayer, viewportLayer, selectionLayer);
        DataLayer headerDataLayer = new DefaultColumnHeaderDataLayer(dataProvider);
        ILayer headerLayer = new ColumnHeaderLayer(headerDataLayer, viewportLayer, selectionLayer);
        DataLayer cornerDataLayer = new DataLayer(dataProvider);
        ILayer cornerLayer = new CornerLayer(cornerDataLayer, rowLayer, headerLayer);
        GridLayer gridLayer = new GridLayer(viewportLayer, headerLayer, rowLayer, cornerLayer);
        NatTable nattable = new NatTable(toReturn, gridLayer, false);
        nattable.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        nattable.addConfiguration(new DefaultNatTableStyleConfiguration());

        // ================================================== START OF CONFUSION

        ButtonCellPainter buttonPainter = new ButtonCellPainter(new TextPainter());

        buttonPainter.addClickListener(new IMouseAction(){
            @Override public void run(NatTable table, MouseEvent event) {
                System.err.println("YOU ARE HERE");
            }
        });     

        nattable.addConfiguration(new AbstractUiBindingConfiguration(){
            @Override public void configureUiBindings(UiBindingRegistry registry) {
                CellLabelMouseEventMatcher mouseEventMatcher = new CellLabelMouseEventMatcher("BODY",1,"BUTTON");
                registry.registerMouseDownBinding(mouseEventMatcher, buttonPainter);
            }
        });

        IConfigRegistry configRegistry = new ConfigRegistry();

        configRegistry.registerConfigAttribute(CellConfigAttributes.CELL_PAINTER, buttonPainter, "NORMAL","BUTTON");

        nattable.setConfigRegistry(configRegistry);

        // ================================================== END OF CONFUSION

        nattable.configure();
        return toReturn;
    }

    public NatTableTest(Shell parentShell) {super(parentShell);}

    // IDataProvider methods
    @Override public int getRowCount() {return 1;}
    @Override public int getColumnCount() {return 1;}
    @Override public Object getDataValue(int var1, int var2) {return "X";}
    @Override public void setDataValue(int var1, int var2, Object var3) {}

    // IConfigLabelAccumulator methods
    @Override public void accumulateConfigLabels(LabelStack labels, int col, int row) {labels.addLabel("BUTTON");}

}

编辑：在调试过程中，在下表的UiBindingRegistry RegionLabel中似乎只包含正文：

。。。按钮是否也应在此处返回，因为标签已添加到该单元格中，我可以告诉您该区域已正确添加，因为该单元格已渲染为按钮

---

NatTable is 2.0.0.201910310701

问题在于单击操作是独占的。所以第一场比赛就赢了。在本例中，将触发SelectCellAction，该操作由DefaultSelectionBindings注册。而且，由于选择被触发，因此将跳过按钮单击

在代码中，只需使用registerFirstMouseDownBinding即可解决此问题

这样，您的绑定将在注册表顶部注册，因此首先进行检查。由于我们的检查具有更多条件区域标签、状态掩码、鼠标按钮和单元格标签，因此仅在身体区域中带有按钮标签的单元格上触发。然后无法选择按钮单元格，这是正确的IMHO。但您仍然可以选择其他没有按钮单元格标签的单元格

---

关于第二个问题：否，按钮标签不应是区域标签的一部分。这是一个单元格标签，不是区域标签。

谢谢您，先生！registerMouseDownBinding->registerFirstMouseDownBinding是所需要的一切：-再次强调：这个插件有多好-数千行，各种小部件嵌入在单元格中&它的性能就像一个梦：-供将来参考：我使用registerFirstSingleClickBinding，因为我在单击单元格时弹出了一个对话框，registerFirstMouseDownBinding导致“鼠标向上”丢失。。。

    private IMouseAction getMouseEventAction(MouseEventTypeEnum mouseEventType, MouseEvent event) {
        try {
            LinkedList<MouseBinding> mouseEventBindings = (LinkedList) this.mouseBindingsMap.get(mouseEventType);
            if (mouseEventBindings != null) {
                LabelStack regionLabels = this.natTable.getRegionLabelsByXY(event.x, event.y);
                Iterator var6 = mouseEventBindings.iterator();

                while (var6.hasNext()) {
                    MouseBinding mouseBinding = (MouseBinding) var6.next();
                    if (mouseBinding.getMouseEventMatcher().matches(this.natTable, event, regionLabels)) {
                        return mouseBinding.getAction();
                    }
                }
            }
        } catch (Exception var7) {
            log.error("Exception on retrieving a mouse event action", var7);
        }

        return null;
    }

nattable.addConfiguration(new AbstractUiBindingConfiguration(){
        @Override public void configureUiBindings(UiBindingRegistry registry) {
            CellLabelMouseEventMatcher mouseEventMatcher = new CellLabelMouseEventMatcher("BODY",1,"BUTTON");
            registry.registerFirstMouseDownBinding(mouseEventMatcher, buttonPainter);
        }
    });