我们可以在Eclipse RCP的nebulla Grid中的RowHeader列上设置文本吗？

Question

我在Eclipse RCP中的视图中有一个Nebula Grid（org.eclipse.nebula.widgets.grid.Grid）控件。我将使此网格的行标题可见，以便在运行时显示行号，如下图所示：

现在，我要在行标题列上显示文本/字符，就像其他列标题（例如，全名，名称等）一样。如何在星云网格上实现这一目标？或者，这个星云网格控件不可能吗？我可以选择什么？

Answer 1

我终于通过实现该方法在nebulla Grid中实现了所需的功能：公共无效涂料（GC paramGC，Object paramObject）{实现代码}内部接口：setTopLeftRenderer（new IRenderer（）{//接口方法}如下：

grdTable.setTopLeftRenderer(new IRenderer() {
    @Override
    public void setSize(int paramInt1, int paramInt2) {
    // TODO Auto-generated method stub  
    }

    @Override
    public void setSize(Point paramPoint) {

    // TODO Auto-generated method stub

    }           
    @Override
    public void setSelected(boolean paramBoolean) {
    // TODO Auto-generated method stub
    }

    @Override
    public void setMouseDown(boolean paramBoolean) {
    // TODO Auto-generated method stub      
    }

    @Override
    public void setLocation(int paramInt1, int paramInt2) {
    // TODO Auto-generated method stub              
    }

    @Override
    public void setLocation(Point paramPoint) {
    // TODO Auto-generated method stub                  
    }

    @Override
    public void setHover(boolean paramBoolean) {
    // TODO Auto-generated method stub              
    }

    @Override
    public void setFocus(boolean paramBoolean) {
    // TODO Auto-generated method stub              
    }

    @Override
    public void setExpanded(boolean paramBoolean) {
    // TODO Auto-generated method stub              
    }

    @Override
    public void setDisplay(Display paramDisplay) {
    // TODO Auto-generated method stub              
    }

    @Override
    public void setBounds(int paramInt1, int paramInt2, int paramInt3,
                    int paramInt4) {
    // TODO Auto-generated method stub                  
    }

    @Override
    public void setBounds(Rectangle paramRectangle) {
    // TODO Auto-generated method stub          
    }

    @Override
    public void paint(GC paramGC, Object paramObject) {
    // TODO Auto-generated method stub
    //paramGC.setAntialias(1);
    paramGC.setBackground(SWTResourceManager.getColor(240, 240, 240));
    Rectangle rect=new Rectangle(0, 0, 20, 2*(grdTable.getGroupHeaderHeight()));
        paramGC.fillRectangle(rect);
        //making foreground color of the Rectangle to be of text in ColumnHeaders   
    paramGC.setForeground(SWTResourceManager.getColor(0, 0, 0));
        //drawing appropriate text on the topLeftCorner of Grid
    paramGC.drawText("#",5,10,false);               
    }

    @Override
    public Point computeSize(GC paramGC, int paramInt1, int paramInt2,
                    Object paramObject) {
    // TODO Auto-generated method stub

    return null;
    }
});

其中，grdTable是视图中使用的网格。

Answer 2

更方便的方法是使用GridTableViewer：

        GridTableViewer grid = new GridTableViewer(parent, SWT.BORDER
            | SWT.V_SCROLL | SWT.H_SCROLL);
    grid.getGrid().setRowHeaderVisible(true);
    grid.setContentProvider(new ArrayContentProvider());
    grid.setRowHeaderLabelProvider(new CellLabelProvider() {

        @Override
        public void update(ViewerCell cell) {
            cell.setText(cell.getElement().toString());
        }
    });