Java JTable禁用单个单元格选择边框高亮显示

Question

我有一个JTable,每行有三列,见图:

出于某种原因,取决于我选择的列,我在上面的图像中得到它周围的小深蓝色边框(V140116554).

我目前使用它来选择整行:

vTable.setRowSelectionAllowed(true);

我怎么能禁用它？

编辑:

添加了一个类:

public class VisitorRenderer extends DefaultTableCellRenderer {
    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); 
        setBorder(noFocusBorder);
        return this;
    }
} 

并补充说:

vTable.setDefaultRenderer(String.class, new VisitorRenderer());

但仍然得到边界

Answer 1

该TableCellRenderer负责绘制焦点矩形当前重点细胞周围.您需要提供自己的渲染器,它能够覆盖此功能或提供自己的...

例如;

public class MyRenderer extends DefaultTableCellRenderer {

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); 
        setBorder(noFocusBorder);
        return this;
    }

}

这将使用DefaultTableCellRenderer作为基础渲染器和设置组件的Border到noFocusBorder其在定义DefaultTableCellRenderer为一个EmptyBorder

然后,您需要将此渲染器设置为受影响列的默认渲染器.查看如何使用表格了解更多详情

以示例更新

对我来说很好......

import java.awt.Color;
import java.awt.Component;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.LineBorder;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;

public class TableRenderer {

    public static void main(String[] args) {
        new TableRenderer();
    }

    public TableRenderer() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                    ex.printStackTrace();
                }

                DefaultTableModel model = new DefaultTableModel(new Object[][]{{"", "One"}, {"", "Two"}}, new Object[]{"Check", "Vistor"}) {
                    @Override
                    public Class<?> getColumnClass(int columnIndex) {
                        return String.class;
                    }
                };

                JTable table = new JTable(model);
                table.setRowSelectionAllowed(true);
                table.setShowGrid(false);
                table.setDefaultRenderer(String.class, new VisitorRenderer());

                JFrame frame = new JFrame("Testing");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.add(new JScrollPane(table));
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

    public class VisitorRenderer extends DefaultTableCellRenderer {

        @Override
        public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
            super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
            setBorder(noFocusBorder);
            return this;
        }
    }
}

只是为了确定,我改为setBorder(noFocusBorder);......

if (hasFocus) {
    setBorder(new LineBorder(Color.RED));
}

从事物的外表,访问者列类类型没有被报告为String经TableModel...

更新了代理渲染器概念

因为您想要从每个单元格中删除焦点边框.你有三个选择......

1. Class为您的表可能需要的每种类型的可能性编写自定义单元格渲染器.这可能耗费时间并重复大量代码以实现很小的效果.
2. 别无所求......
3. 使用"代理"渲染器.这是一个使用另一个渲染器TableCellRenderer执行实际渲染过程的渲染器,但对结果应用了一些小的更改,例如,删除边框...

...

public static class ProxyCellRenderer implements TableCellRenderer {

    protected static final Border DEFAULT_BORDER = new EmptyBorder(1, 1, 1, 1);
    private TableCellRenderer renderer;

    public ProxyCellRenderer(TableCellRenderer renderer) {
        this.renderer = renderer;
    }

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        Component comp = renderer.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
        if (comp instanceof JComponent) {
            ((JComponent)comp).setBorder(DEFAULT_BORDER);
        }
        return comp;
    }        
}

而不是像......那样做

table.setDefaultRenderer(String.class, new VisitorRenderer());

我们之前做过的,我们会这样做......

table.setDefaultRenderer(String.class, 
    new ProxyCellRenderer(table.getDefaultRenderer(String.class)));

这意味着我们可以利用默认渲染器已经可用但不知道它可能是什么,但也提供我们自己的自定义要求...