Swing JTable - 突出显示与所选行的其余部分不同颜色的选定单元格？ [英] Swing JTable - Highlight selected cell in a different color from rest of the selected row?

问题描述

我有一个基本的摆动JTable，要求是当点击任何单元格时，整个行应该突出显示，并且单击的单元格应该与突出显示的行的其余部分颜色不同。

I have a basic swing JTable and the requirement is that when clicked on any cell, the entire row should be highlighted, and also that the cell which was clicked should be a different color from the rest of the highlighted row.

目前， isRowSelectionAllowed 为 true

I尝试使用自定义 TableCellRenderer ，如下所示：

I tried using a custom TableCellRenderer which is as follows:

public class CustomTableCellRenderer extends DefaultTableCellRenderer
{

public static final DefaultTableCellRenderer    DEFAULT_RENDERER    = new DefaultTableCellRenderer();
    @Override
  public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
    Component c = DEFAULT_RENDERER.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);

    if (isSelected) {
        c.setBackground(Color.red);
    }
    else {
        c.setForeground(Color.black);
        c.setBackground(Color.white);
    }
    return c;   
  }     
}

但这似乎不起作用（整行是用红色突出显示。

But that did not seem to work (entire row was highlighted in red).

我还尝试按如下方式设置UIManager属性：

I also tried setting the UIManager property as follows:

UIManager.put("Table.focusCellBackground", 
         new javax.swing.plaf.ColorUIResource (Color.red));

但这似乎也不起作用（即使我尝试使用

But that does not seem to work either (even though, when I tried setting a border using

UIManager.put("Table.focusCellHighlightBorder", 
         new BorderUIResource.LineBorderUIResource(Color.red)); 

运作良好）

你能不能给任何建议我可能需要做什么？

Could you please give any suggestions what I might need to do?

推荐答案

试试这个：

jtable.setCellSelectionEnabled(true);

然后在 getTableCellRendererComponent

if (table.isCellSelected(row, column))
    setForeground(Color.red);
else if (table.isRowSelected(row))
    setForeground(Color.green);
else if (table.isColumnSelected(column))
    setForeground(Color.blue);
else
    setForeground(Color.black);

这将使所选单元格呈现红色，其余部分呈绿色，其余部分为蓝色的列。注意：单元格选择要求选择模型为单一，其他选择模型可能会导致不可预测的行为。

That will render the selected cell in red, the rest of the row in green, and the rest of the column in blue. Note: cell selection requires the selection model be single, other selection models may cause unpredictable behaviors.

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