java – JTable Nimbus外观 – 如何清楚哪个单元格具有焦点

当在JTable(Nimbus L& F)中编辑数据时,当用户从一个单元格切换到另一个单元格时,不清楚哪个单元格具有焦点.如何更清楚地说明哪个细胞有焦点？我知道有很多属性可以设置来修改Nimbus – 有谁知道我想要哪个属性？

下面的屏幕截图只有一个属性设置为默认值以外的其他属性：

UIManager.put("Table.showGrid",true);

最佳答案

>你看看Renderer concept,
>默认工作于Nimbus Look and Feel,
>某些问题可能与JButtons components (JCheckBox e.i.)有关,但在此论坛上有几次得到解答或解决

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.Graphics;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;
import javax.swing.Icon;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.RowSorter.SortKey;
import javax.swing.SortOrder;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class ImageChangeDemo extends JFrame {
    private static final long serialVersionUID = 1L;
    private JTable table = new javax.swing.JTable();
    private JTable table1 = new javax.swing.JTable();
    private static Icon ascendingSortIcon;
    private static Icon descendingSortIcon;
    public static void main(String args[]) {
        //comment out the code below to try in Metal L&F
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    ascendingSortIcon = UIManager.getLookAndFeelDefaults().getIcon("Table.ascendingSortIcon");
                    descendingSortIcon = UIManager.getLookAndFeelDefaults().getIcon("Table.descendingSortIcon");
                    //UIManager.getLookAndFeelDefaults().put("Table.ascendingSortIcon",new BevelArrowIcon(BevelArrowIcon.UP,false,false));
                    //UIManager.getLookAndFeelDefaults().put("Table.descendingSortIcon",new BevelArrowIcon(BevelArrowIcon.DOWN,false));
                    break;
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        java.awt.EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                new ImageChangeDemo().setVisible(true);
            }
        });
    }
    public ImageChangeDemo() {
        setDefaultCloSEOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        JScrollPane pane = new javax.swing.JScrollPane();
        //table.setAutoCreateRowSorter(true);
        table.setModel(new javax.swing.table.DefaultTableModel(
                new Object[][]{
                    {"a","q","h","v"},{"b","m","l","h"},{"d","c","a","d"},{"j","o","y","e"}
                },new String[]{
                    "Col 1","Col 2","Col 3","Col 4"
                }) {
            private static final long serialVersionUID = 1L;
            Class[] types = new Class[]{
                String.class,String.class,String.class
            };
            @Override
            public Class getColumnClass(int columnIndex) {
                return types[columnIndex];
            }
        });
        TableRowSorter

java – JTable Nimbus外观 – 如何清楚哪个单元格具有焦点

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